UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-CSR CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES Investment Company Act file number 811-4777 - ------------------------------------------------------------------------------- MFS SERIES TRUST I - ------------------------------------------------------------------------------- (Exact name of registrant as specified in charter) 500 Boylston Street, Boston, Massachusetts 02116 - ------------------------------------------------------------------------------- (Address of principal executive offices) (Zip code) Susan S. Newton Massachusetts Financial Services Company 500 Boylston Street Boston, Massachusetts 02116 - ------------------------------------------------------------------------------- (Name and address of agents for service) Registrant's telephone number, including area code: (617) 954-5000 - ------------------------------------------------------------------------------- Date of fiscal year end: August 31 - ------------------------------------------------------------------------------- Date of reporting period: August 31, 2005 - ------------------------------------------------------------------------------- ITEM 1. REPORTS TO STOCKHOLDERS. MFS(R) STRATEGIC GROWTH FUND 8/31/05 ANNUAL REPORT - ------------------------------------------------------------------------------- LETTER FROM THE CEO 1 - --------------------------------------------------- PORTFOLIO COMPOSITION 2 - --------------------------------------------------- MANAGEMENT REVIEW 3 - --------------------------------------------------- PERFORMANCE SUMMARY 5 - --------------------------------------------------- EXPENSE TABLE 8 - --------------------------------------------------- PORTFOLIO OF INVESTMENTS 10 - --------------------------------------------------- FINANCIAL STATEMENTS 15 - --------------------------------------------------- NOTES TO FINANCIAL STATEMENTS 27 - --------------------------------------------------- REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 38 - --------------------------------------------------- RESULTS OF SHAREHOLDER MEETING 39 - --------------------------------------------------- TRUSTEES AND OFFICERS 40 - --------------------------------------------------- BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT 45 - --------------------------------------------------- PROXY VOTING POLICIES AND INFORMATION 49 - --------------------------------------------------- QUARTERLY PORTFOLIO DISCLOSURE 49 - --------------------------------------------------- FEDERAL TAX INFORMATION 49 - --------------------------------------------------- CONTACT INFORMATION BACK COVER - --------------------------------------------------- THIS REPORT HAS BEEN PREPARED FOR THE GENERAL INFORMATION TO SHAREHOLDERS. IT IS AUTHORIZED FOR DISTRIBUTION TO PROSPECTIVE INVESTORS ONLY WHEN PRECEDED OR ACCOMPANIED BY A CURRENT PROSPECTUS. [logo] M F S(SM) INVESTMENT MANAGEMENT(R) LETTER FROM THE CEO [Photo of Robert J. Manning] Dear Shareholders, Most investors are familiar with the basic principles of investing - focus on the long term and keep your assets diversified across different investment categories. Still, it is surprising how often we forget these basic lessons. Certainly, the dot-com euphoria that overtook Wall Street in the late 1990s had many people hoping they could become millionaires overnight. But the market decline that started in the spring of 2000 taught everyone how misguided those hopes had been. Now, less than five years after the market taught a harsh lesson in the follies of speculative investing, we are seeing a number of trends that suggest many investors, including professionals, are hoping for overnight miracles again. We see a steady stream of market "gurus" on television news shows, promising to teach amateur investors the strategies that will allow them to get rich quick. Hedge funds - which by their nature move in and out of investments rapidly - have soared in popularity over the past five years. We are reminded every day that we live in a "what have you done for me lately?" world, but this mindset should not influence how we invest and manage our money. In fact, investors often fall short of their goals because they trade in and out of investments too frequently and at inopportune times. Throughout our entire 80-year history, MFS' money management process has focused on long-term investment opportunities. We firmly believe that one of the best ways to realize long-term financial goals - be it a college education, a comfortable retirement, or a secure family legacy - is to follow a three-pronged approach that focuses on longer time horizons. Allocate holdings across the major asset classes - including stocks, bonds, and cash. Diversify within each class to take advantage of different market segments and investing styles. And rebalance assets regularly to maintain a desired asset allocation.* This long-term approach requires diligence and patience, two traits that in our experience are essential to capitalizing on the many opportunities the financial markets can offer. Respectfully, /s/ Robert J. Manning Robert J. Manning Chief Executive Officer and Chief Investment Officer MFS Investment Management(R) October 17, 2005 * Asset allocation, diversification, and rebalancing does not guarantee a profit or protect against a loss. The opinions expressed in this letter are those of MFS, and no forecasts can be guaranteed. PORTFOLIO COMPOSITION PORTFOLIO STRUCTURE Stocks 98.5% Cash & Other Net Assets 1.5% TOP TEN HOLDINGS Cisco Systems, Inc. 3.8% ------------------------------------------------ Wyeth 3.6% ------------------------------------------------ Microsoft Corp. 3.5% ------------------------------------------------ Johnson & Johnson 3.3% ------------------------------------------------ Dell, Inc. 2.8% ------------------------------------------------ Amgen, Inc. 2.6% ------------------------------------------------ Oracle Corp. 2.3% ------------------------------------------------ Eli Lilly & Co. 2.2% ------------------------------------------------ EMC Corp. 2.2% ------------------------------------------------ QUALCOMM, Inc. 2.0% ------------------------------------------------ SECTOR WEIGHTINGS Technology 36.3% ------------------------------------------------ Health Care 23.1% ------------------------------------------------ Retailing 12.2% ------------------------------------------------ Leisure 8.8% ------------------------------------------------ Financial Services 5.1% ------------------------------------------------ Special Products & Services 4.0% ------------------------------------------------ Consumer Staples 3.9% ------------------------------------------------ Industrial Goods & Services 2.3% ------------------------------------------------ Transportation 1.5% ------------------------------------------------ Autos & Housing 1.0% ------------------------------------------------ Basic Materials 0.3% ------------------------------------------------ Percentages are based on net assets as of 8/31/05. The portfolio is actively managed, and current holdings may be different. MANAGEMENT REVIEW SUMMARY OF RESULTS For the twelve months ended August 31, 2005, Class A shares of the MFS Strategic Growth Fund provided a total return of 12.88%, at net asset value. In comparison, the fund's benchmark, the Russell 1000 Growth Index, returned 12.14%. CONTRIBUTORS TO PERFORMANCE Stock selection in the health care and retailing sectors positively impacted the fund's relative performance. In heath care, biotech firm Amgen was a top relative contributor. Not holding the poor-performing Merck* (a constituent in the index) and our small position in Pfizer*, both of which significantly underperformed the benchmark, also aided relative performance. In retailing, sporting goods manufacturer Reebok and drugstore chain CVS also boosted results. Our underweighted position and, to a lesser extent, stock selection in the basic materials sector enhanced the fund's relative performance. Our underweighted position in the consumer staples sector also assisted results. Both sectors underperformed relative to the overall index for the period. No individual stocks in these sectors were among the fund's top contributors for the period. Stocks in other sectors that helped performance included telecom equipment company Corning, semiconductor company Marvell Technology (which is not held in the index), software company Veritas*, and Latin American wireless operator America Movil* (which is not an index constituent). Avoiding mortgage financier Fannie Mae, which underperformed the overall index, also had a positive impact on the results. DETRACTORS FROM PERFORMANCE Not holding any stocks in the energy sector, which outperformed the overall index, hurt relative results for the period. Within this sector, not owning oilfield services provider Halliburton was a top detractor from relative performance. Stock selection in the leisure sector dampened results, although no individual stocks in the leisure sector were among the fund's top detractors for the period. Stock selection in the industrial goods and services sector detracted from performance. Our positioning in manufacturing conglomerate Tyco (which is not an index constituent) negatively impacted performance. Another stock that dampened results was the consulting firm Accenture (which is not an index constituent). Although the health care and technology sectors were positive contributors overall, they contained some of our top individual detractors. In health care, holdings of biotech firm ImClone, and our avoidance of the strong-performing health insurer UnitedHealth Group, undermined results. In technology, underweighting chip giant Intel and overweighting networking devices supplier Cisco Systems hurt results. Not owning personal computer manufacturer Apple and telecom equipment maker Motorola, as both stocks outperformed the overall index during the period, also hindered performance. The fund's cash position was also a detractor from relative performance. As with nearly all mutual funds, this portfolio holds cash to buy new holdings and to provide liquidity. In a period when equity markets rose as measured by the primary benchmark, holding cash hurt performance versus our benchmark, which has no cash position. Respectfully, /s/ S. Irfan Ali S. Irfan Ali Portfolio Manager Note: Effective July 1, 2005, Peggy Adams is no longer a portfolio manager of the fund. * Security was not held in the portfolio at period-end. The views expressed in this report are those of the portfolio manager only through the end of the period of the report as stated on the cover and do not necessarily reflect the views of MFS or any other person in the MFS organization. These views are subject to change at any time based on market and other conditions, and MFS disclaims any responsibility to update such views. These views may not be relied upon as investment advice or an indication of trading intent on behalf of any MFS Fund. References to specific securities are not recommendations of such securities, and may not be representative of any MFS Fund's current or future investments. PERFORMANCE SUMMARY THROUGH 8/31/05 The following chart illustrates the historical performance of the fund's original share class in comparison to its benchmark. Performance results include the deduction of the maximum applicable sales charge and reflect the percentage change in net asset value, including reinvestment of dividends and capital gains distributions. Benchmark comparisons are unmanaged and do not reflect any fees or expenses. The performance of other share classes will be greater than or less than the line shown. (See Notes to Performance Summary.) VISIT MFS.COM FOR THE MOST RECENT MONTH-END PERFORMANCE RESULTS. (FOR THE MOST RECENT MONTH-END PERFORMANCE FOR CLASS I SHARES CALL 1-888-808-6374.) MARKET VOLATILITY CAN SIGNIFICANTLY AFFECT SHORT-TERM PERFORMANCE, AND CURRENT PERFORMANCE MAY BE LOWER OR HIGHER THAN THE PERFORMANCE DATA QUOTED. THE PERFORMANCE DATA QUOTED REPRESENTS PAST PERFORMANCE, WHICH IS NO GUARANTEE OF FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE WILL FLUCTUATE, AND SHARES, WHEN REDEEMED, MAY BE WORTH MORE OR LESS THAN THEIR ORIGINAL COST. HIGH SHORT-TERM RETURNS FOR ANY PERIOD MAY BE AND LIKELY WERE ATTRIBUTABLE TO FAVORABLE MARKET CONDITIONS DURING THAT PERIOD, WHICH MAY NOT BE REPEATABLE. THE PERFORMANCE SHOWN DOES NOT REFLECT THE DEDUCTION OF TAXES, IF ANY, THAT A SHAREHOLDER WOULD PAY ON FUND DISTRIBUTIONS OR THE REDEMPTION OF FUND SHARES. GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT (For the period from the commencement of the fund's investment operations, January 2, 1996, through August 31, 2005. Index information is from January 1, 1996.) MFS Strategic Growth Fund -- Russell 1000 Class A Growth Index 1/96 $ 9,425 $10,823 8/97 18,435 15,084 8/98 20,845 16,329 8/99 32,183 24,221 8/00 47,367 32,325 8/01 27,032 17,674 8/02 19,815 13,756 8/03 23,403 15,692 8/04 23,473 16,532 8/05 26,496 18,540 TOTAL RETURNS THROUGH 8/31/05 AVERAGE ANNUAL WITHOUT SALES CHARGE Share class Class inception date 1-yr 5-yr Life* - ------------------------------------------------------------------------------ A 1/02/96 12.88% -10.97% 11.29% - ------------------------------------------------------------------------------ B 4/11/97 12.10% -11.55% 10.65% - ------------------------------------------------------------------------------ C 4/11/97 12.14% -11.54% 10.67% - ------------------------------------------------------------------------------ I 1/02/97 13.26% -10.66% 11.62% - ------------------------------------------------------------------------------ R** 12/31/02 12.67% -11.05% 11.24% - ------------------------------------------------------------------------------ R1 4/01/05 12.46% -11.03% 11.25% - ------------------------------------------------------------------------------ R2 4/01/05 12.59% -11.01% 11.26% - ------------------------------------------------------------------------------ R3** 10/31/03 12.39% -11.09% 11.21% - ------------------------------------------------------------------------------ R4 4/01/05 12.82% -10.98% 11.28% - ------------------------------------------------------------------------------ R5 4/01/05 13.00% -10.95% 11.30% - ------------------------------------------------------------------------------ 529A 7/31/02 12.57% -11.09% 11.21% - ------------------------------------------------------------------------------ 529B 7/31/02 11.84% -11.46% 10.97% - ------------------------------------------------------------------------------ 529C 7/31/02 11.82% -11.47% 10.97% - ------------------------------------------------------------------------------ AVERAGE ANNUAL Comparative benchmarks - ------------------------------------------------------------------------------ Average large-cap growth fund+ 13.74% -9.20% 6.38% - ------------------------------------------------------------------------------ Russell 1000 Growth Index# 12.14% -10.52% 6.59% - ------------------------------------------------------------------------------ AVERAGE ANNUAL WITH SALES CHARGE Share class 1-yr 5-yr Life* - ------------------------------------------------------------------------------ A 6.39% -12.02% 10.61% - ------------------------------------------------------------------------------ B 8.10% -11.86% 10.65% - ------------------------------------------------------------------------------ C 11.14% -11.54% 10.67% - ------------------------------------------------------------------------------ 529A 6.10% -12.14% 10.53% - ------------------------------------------------------------------------------ 529B 7.84% -11.76% 10.97% - ------------------------------------------------------------------------------ 529C 10.82% -11.47% 10.97% - ------------------------------------------------------------------------------ Class I, R, R1, R2, R3, R4, and R5 shares do not have a sales charge. Please see Notes to Performance Summary for more details. * For the period from the commencement of the fund's investment operations, January 2, 1996, through August 31, 2005. Index information is from January 1, 1996. ** Effective April 1, 2005, Class R1 shares have been renamed "Class R shares" and Class R2 shares have been renamed "Class R3 shares." + Source: Lipper Inc., an independent firm that reports mutual fund performance. # Source: Standard & Poor's Micropal, Inc. INDEX DEFINITION Russell 1000 Growth Index - is constructed to provide a comprehensive barometer for growth securities in the large-cap segment of the U.S. equity universe. Companies in this index generally have higher price-to-book ratios and higher forecasted growth values. It is not possible to invest directly in an index. NOTES TO PERFORMANCE SUMMARY Class A and 529A results including sales charge reflect the deduction of the maximum 5.75% sales charge. Class B and 529B results including sales charge reflect the deduction of the applicable contingent deferred sales charge (CDSC), which declines over six years from 4% to 0%. Class C and 529C results including sales charge (assuming redemption within one year from the end of the prior month of purchase) reflect the deduction of the 1% CDSC. Class R shares have no initial sales charge or CDSC and are available only to existing Class R shareholders. Class I, R1, R2, R3, R4, and R5 shares have no initial sales charge or CDSC. Class I shares are only available to certain eligible investors, and Class R1, R2, R3, R4, and R5 shares are only available to certain retirement plans. Class 529 shares are only available in conjunction with qualified tuition programs, such as the MFS 529 Savings Plan. There also is an additional annual fee, which is detailed in the program description, on qualified tuition programs. If this fee was reflected, the performance for Class 529 shares would have been lower. This annual fee is waived for Oregon residents and for those accounts with assets of $25,000 or more. Performance for share classes offered after Class A shares includes the performance of the fund's Class A shares for periods prior to their offering. This blended class performance has been adjusted to take into account differences in sales loads, if any, applicable to these share classes, but has not been adjusted to take into account differences in class specific operating expenses (such as Rule 12b-1 fees). Compared to performance these share classes would have experienced had they been offered for the entire period, the use of blended performance generally results in higher performance for share classes with higher operating expenses than the share class to which it is blended, and lower performance for share classes with lower operating expenses than the share class to which it is blended. Performance results reflect any applicable expense subsidies and waivers in effect during the periods shown. Without such subsidies and waivers the fund's performance results would be less favorable. Please see the prospectus and financial statements for complete details. The performance shown reflects a non-recurring accrual made to the fund on July 28, 2004, relating to MFS' revenue sharing settlement with the Securities and Exchange Commission, without which the performance would have been lower. The proceeds were paid to the fund on February 16, 2005. From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. EXPENSE TABLE FUND EXPENSES BORNE BY THE SHAREHOLDERS DURING THE PERIOD, MARCH 1, 2005 THROUGH AUGUST 31, 2005. As a shareholder of the fund, you incur two types of costs: (1) transaction costs, including sales charges (loads) on certain purchase or redemption payments and redemption fees on certain exchanges and redemptions, and (2) ongoing costs, including management fees; distribution and service (12b-1) fees; and other fund expenses. This example is intended to help you understand your ongoing costs (in dollars) of investing in the fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 invested at the beginning of the period and held for the entire period March 1, 2005 through August 31, 2005. ACTUAL EXPENSES The first line for each share class in the table below provides information about actual account values and actual expenses. You may use the information in this line, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading entitled "Expenses Paid During Period" to estimate the expenses you paid on your account during this period. HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES The second line for each share class in the table below provides information about hypothetical account values and hypothetical expenses based on the fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as sales charges (loads) or redemption fees. Therefore, the second line for each share class in the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher. - ------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period** Share Expense Account Value Account Value 3/01/05- Class Ratio 3/01/05 8/31/05 8/31/05 - ------------------------------------------------------------------------------- Actual 1.30% $1,000.00 $1,027.40 $6.64 A -------------------------------------------------------------------- Hypothetical* 1.30% $1,000.00 $1,018.65 $6.61 - ------------------------------------------------------------------------------- Actual 1.93% $1,000.00 $1,023.50 $9.84 B --------------------------------------------------------------------- Hypothetical* 1.93% $1,000.00 $1,015.48 $9.80 - ------------------------------------------------------------------------------- Actual 1.93% $1,000.00 $1,024.00 $9.85 C -------------------------------------------------------------------- Hypothetical* 1.93% $1,000.00 $1,015.48 $9.80 - ------------------------------------------------------------------------------- Actual 0.91% $1,000.00 $1,028.90 $4.65 I -------------------------------------------------------------------- Hypothetical* 0.91% $1,000.00 $1,020.62 $4.63 - ------------------------------------------------------------------------------- R Actual 1.44% $1,000.00 $1,026.40 $7.35 (formerly -------------------------------------------------------------------- R1) Hypothetical* 1.44% $1,000.00 $1,017.95 $7.32 - ------------------------------------------------------------------------------- Actual 2.13% $1,000.00 $1,023.60 $10.86 R1 -------------------------------------------------------------------- Hypothetical* 2.13% $1,000.00 $1,014.47 $10.82 - ------------------------------------------------------------------------------- Actual 1.84% $1,000.00 $1,024.80 $9.39 R2 -------------------------------------------------------------------- Hypothetical* 1.84% $1,000.00 $1,015.93 $9.35 - ------------------------------------------------------------------------------- R3 Actual 1.69% $1,000.00 $1,025.40 $8.63 (formerly -------------------------------------------------------------------- R2) Hypothetical* 1.69% $1,000.00 $1,016.69 $8.59 - ------------------------------------------------------------------------------- Actual 1.35% $1,000.00 $1,026.80 $6.90 R4 -------------------------------------------------------------------- Hypothetical* 1.35% $1,000.00 $1,018.40 $6.87 - ------------------------------------------------------------------------------- Actual 1.05% $1,000.00 $1,028.50 $5.37 R5 -------------------------------------------------------------------- Hypothetical* 1.05% $1,000.00 $1,019.91 $5.35 - ------------------------------------------------------------------------------- Actual 1.53% $1,000.00 $1,025.90 $7.81 529A -------------------------------------------------------------------- Hypothetical* 1.53% $1,000.00 $1,017.49 $7.78 - ------------------------------------------------------------------------------- Actual 2.19% $1,000.00 $1,022.50 $11.16 529B -------------------------------------------------------------------- Hypothetical* 2.19% $1,000.00 $1,014.17 $11.12 - ------------------------------------------------------------------------------- Actual 2.19% $1,000.00 $1,023.00 $11.17 529C -------------------------------------------------------------------- Hypothetical* 2.19% $1,000.00 $1,014.17 $11.12 - ------------------------------------------------------------------------------- * 5% class return per year before expenses. ** Expenses paid is equal to each class' annualized expense ratio, as shown above, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year. Expenses paid do not include any applicable sales charges (loads) or redemption fees. If these transaction costs had been included, your costs would have been higher. The Portfolio of Investments - 8/31/05 The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Stocks - 98.5% - --------------------------------------------------------------------------------------------------- ISSUER SHARES $ VALUE - --------------------------------------------------------------------------------------------------- Apparel Manufacturers - 1.3% - --------------------------------------------------------------------------------------------------- Reebok International Ltd.^ 391,810 $ 22,058,901 - --------------------------------------------------------------------------------------------------- Banks & Credit Companies - 3.4% - --------------------------------------------------------------------------------------------------- American Express Co. 229,270 $ 12,664,875 Citigroup, Inc. 507,067 22,194,323 SLM Corp.^ 410,200 20,407,450 -------------- $ 55,266,648 - --------------------------------------------------------------------------------------------------- Biotechnology - 5.7% - --------------------------------------------------------------------------------------------------- Amgen, Inc.* 526,150 $ 42,039,385 Genzyme Corp.^* 196,480 13,983,482 Gilead Sciences, Inc.* 563,460 24,228,780 ImClone Systems, Inc.^* 151,180 4,946,610 MedImmune, Inc.* 253,420 7,584,861 -------------- $ 92,783,118 - --------------------------------------------------------------------------------------------------- Broadcast & Cable TV - 5.3% - --------------------------------------------------------------------------------------------------- Comcast Corp., "Special A"^* 506,930 $ 15,299,147 Grupo Televisa S.A., ADR^ 169,460 10,642,088 News Corp., "A" 1,008,050 16,340,491 Univision Communications, Inc., "A"^* 322,820 8,683,858 Viacom, Inc., "B"^ 691,633 23,508,606 Walt Disney Co. 442,380 11,143,552 -------------- $ 85,617,742 - --------------------------------------------------------------------------------------------------- Brokerage & Asset Managers - 0.8% - --------------------------------------------------------------------------------------------------- Chicago Mercantile Exchange Holdings, Inc.^ 18,000 $ 4,996,800 Merrill Lynch & Co., Inc.^ 138,040 7,890,366 -------------- $ 12,887,166 - --------------------------------------------------------------------------------------------------- Business Services - 4.0% - --------------------------------------------------------------------------------------------------- Accenture Ltd., "A"^* 397,500 $ 9,699,000 Amdocs Ltd.^* 492,790 14,463,387 Cintas Corp.^ 406,170 16,754,513 Getty Images, Inc.^* 88,030 7,534,488 Infosys Technologies Ltd., ADR 231,460 16,385,053 -------------- $ 64,836,441 - --------------------------------------------------------------------------------------------------- Chemicals - 0.3% - --------------------------------------------------------------------------------------------------- Monsanto Co. 75,910 $ 4,846,094 - --------------------------------------------------------------------------------------------------- Computer Software - 9.5% - --------------------------------------------------------------------------------------------------- Adobe Systems, Inc.^ 313,800 $ 8,485,152 Check Point Software Technologies Ltd.^* 292,390 6,596,318 Macromedia, Inc.* 133,200 4,921,740 Mercury Interactive Corp.^* 417,100 15,295,057 Microsoft Corp. 2,082,260 57,053,924 Oracle Corp.* 2,844,680 36,895,500 Symantec Corp.* 1,239,369 26,001,962 -------------- $ 155,249,653 - --------------------------------------------------------------------------------------------------- Computer Software - Systems - 3.7% - --------------------------------------------------------------------------------------------------- Dell, Inc.^* 1,279,010 $ 45,532,756 LG Philips LCD Co. Ltd., ADR^* 614,680 13,983,970 -------------- $ 59,516,726 - --------------------------------------------------------------------------------------------------- Consumer Goods & Services - 2.4% - --------------------------------------------------------------------------------------------------- Avon Products, Inc. 191,450 $ 6,283,389 Gillette Co. 173,040 9,321,665 Procter & Gamble Co.^ 429,950 23,853,626 -------------- $ 39,458,680 - --------------------------------------------------------------------------------------------------- Electrical Equipment - 1.9% - --------------------------------------------------------------------------------------------------- Cooper Industries Ltd., "A" 106,330 $ 7,064,565 General Electric Co. 332,650 11,180,367 Tyco International Ltd.^ 464,274 12,920,745 -------------- $ 31,165,677 - --------------------------------------------------------------------------------------------------- Electronics - 9.8% - --------------------------------------------------------------------------------------------------- Analog Devices, Inc.^ 580,280 $ 21,151,206 AU Optronics Corp., ADR^ 523,761 7,746,425 Intel Corp. 758,900 19,518,908 KLA-Tencor Corp. 292,900 14,867,604 Marvell Technology Group Ltd.^* 267,360 12,616,718 PMC-Sierra, Inc.^* 1,243,410 10,544,117 Samsung Electronics Co. Ltd., GDR 99,420 26,072,895 Taiwan Semiconductor Manufacturing Co. Ltd., ADR 1,685,096 13,868,340 Texas Instruments, Inc.^ 386,730 12,638,336 Xilinx, Inc.^ 746,030 20,955,983 -------------- $ 159,980,532 - --------------------------------------------------------------------------------------------------- Food & Drug Stores - 1.0% - --------------------------------------------------------------------------------------------------- CVS Corp. 549,400 $ 16,135,878 - --------------------------------------------------------------------------------------------------- Food & Non-Alcoholic Beverages - 1.5% - --------------------------------------------------------------------------------------------------- PepsiCo, Inc.^ 436,210 $ 23,926,119 - --------------------------------------------------------------------------------------------------- Furniture & Appliances - 1.0% - --------------------------------------------------------------------------------------------------- Harman International Industries, Inc. 164,100 $ 16,967,940 - --------------------------------------------------------------------------------------------------- Gaming & Lodging - 1.2% - --------------------------------------------------------------------------------------------------- Carnival Corp. 260,150 $ 12,835,801 Royal Caribbean Cruises Ltd.^ 143,200 6,117,504 -------------- $ 18,953,305 - --------------------------------------------------------------------------------------------------- General Merchandise - 4.3% - --------------------------------------------------------------------------------------------------- Kohl's Corp.^* 400,240 $ 20,992,588 Target Corp. 358,840 19,287,650 Wal-Mart Stores, Inc.^ 671,926 30,209,793 -------------- $ 70,490,031 - --------------------------------------------------------------------------------------------------- Insurance - 0.9% - --------------------------------------------------------------------------------------------------- American International Group, Inc.^ 250,339 $ 14,820,069 - --------------------------------------------------------------------------------------------------- Internet - 2.1% - --------------------------------------------------------------------------------------------------- eBay, Inc.* 300,920 $ 12,184,251 Yahoo!, Inc.^* 642,500 21,420,950 -------------- $ 33,605,201 - --------------------------------------------------------------------------------------------------- Leisure & Toys - 2.0% - --------------------------------------------------------------------------------------------------- Activision, Inc.^* 219,106 $ 4,897,019 Electronic Arts, Inc.^* 487,230 27,908,534 -------------- $ 32,805,553 - --------------------------------------------------------------------------------------------------- Machinery & Tools - 0.4% - --------------------------------------------------------------------------------------------------- Illinois Tool Works, Inc.^ 75,470 $ 6,360,612 - --------------------------------------------------------------------------------------------------- Medical Equipment - 4.3% - --------------------------------------------------------------------------------------------------- Alcon, Inc.^ 116,200 $ 13,717,410 DENTSPLY International, Inc. 5,200 275,444 Fisher Scientific International, Inc.^* 134,780 8,690,614 Medtronic, Inc.^ 313,450 17,866,650 St. Jude Medical, Inc.^* 402,550 18,477,045 Waters Corp.* 236,500 10,753,655 -------------- $ 69,780,818 - --------------------------------------------------------------------------------------------------- Network & Telecom - 8.3% - --------------------------------------------------------------------------------------------------- Cisco Systems, Inc.* 3,469,330 $ 61,129,595 Comverse Technology, Inc.^* 408,950 10,542,731 Corning, Inc.^* 1,597,110 31,878,316 QUALCOMM, Inc.^ 815,900 32,399,389 -------------- $ 135,950,031 - --------------------------------------------------------------------------------------------------- Personal Computers & Peripherals - 2.9% - --------------------------------------------------------------------------------------------------- EMC Corp.* 2,738,070 $ 35,211,580 Network Appliance, Inc.^* 512,380 12,163,901 -------------- $ 47,375,481 - --------------------------------------------------------------------------------------------------- Pharmaceuticals - 13.1% - --------------------------------------------------------------------------------------------------- Abbott Laboratories 500,000 $ 22,565,000 Allergan, Inc.^ 88,260 8,124,333 Eli Lilly & Co. 640,290 35,228,756 Johnson & Johnson^ 837,240 53,072,644 Roche Holding AG 135,480 18,770,408 Teva Pharmaceutical Industries Ltd., ADR^ 554,800 17,997,712 Wyeth 1,262,698 57,818,941 -------------- $ 213,577,794 - --------------------------------------------------------------------------------------------------- Restaurants - 0.3% - --------------------------------------------------------------------------------------------------- Outback Steakhouse, Inc.^ 128,030 $ 5,327,328 - --------------------------------------------------------------------------------------------------- Specialty Stores - 5.6% - --------------------------------------------------------------------------------------------------- Bed Bath & Beyond, Inc.^* 184,660 $ 7,487,963 Home Depot, Inc.^ 473,020 19,072,166 Lowe's Cos., Inc.^ 256,520 16,496,801 PETsMART, Inc.^ 646,000 16,647,420 Staples, Inc. 791,720 17,386,171 TJX Cos., Inc.^ 640,970 13,402,683 -------------- $ 90,493,204 - --------------------------------------------------------------------------------------------------- Trucking - 1.5% - --------------------------------------------------------------------------------------------------- FedEx Corp. 126,670 $ 10,316,005 United Parcel Service, Inc., "B"^ 198,070 14,041,182 -------------- $ 24,357,187 - --------------------------------------------------------------------------------------------------- Total Stocks (Identified Cost, $1,573,413,856) $1,604,593,929 - --------------------------------------------------------------------------------------------------- Convertible Bonds - 0% - --------------------------------------------------------------------------------------------------- ISSUER PAR AMOUNT $ VALUE - --------------------------------------------------------------------------------------------------- Electronics - 0% - --------------------------------------------------------------------------------------------------- Candescent Technologies Corp., 8%, 2003##** $10,000,000 $0 - --------------------------------------------------------------------------------------------------- Total Convertible Bonds (Identified Cost, $--) $0 - --------------------------------------------------------------------------------------------------- Short-Term Obligation - 0.6% - --------------------------------------------------------------------------------------------------- General Electric Capital Corp., 3.58%, due 9/01/05, at Amortized Cost< $10,315,000 $10,315,000 - --------------------------------------------------------------------------------------------------- Portfolio of Investments - continued Collateral for Securities Loaned - 20.2% - --------------------------------------------------------------------------------------------------- ISSUER SHARES $ VALUE - --------------------------------------------------------------------------------------------------- Navigator Securities Lending Prime Portfolio, at Cost and Net Asset Value 328,217,468 $ 328,217,468 - --------------------------------------------------------------------------------------------------- Total Investments(S) (Identified Cost, $1,911,946,324) $1,943,126,397 - --------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - (19.3)% (314,572,321) - --------------------------------------------------------------------------------------------------- Net Assets - 100.0% $1,628,554,076 - --------------------------------------------------------------------------------------------------- * Non-income producing security. ** Non income producing security - in default. < The rate shown represents an annualized yield at time of purchase. ^ All or a portion of this security is on loan. ## SEC Rule 144A restriction. (S) As of August 31, 2005, the fund had one security representing $18,770,408 and 1.2% of net assets that was fair valued in accordance with the policies adopted by the Board of Trustees. Abbreviations: ADR = American Depository Receipt. GDR = Global Depository Receipt. SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statement of Assets and Liabilities This statement represents your fund's balance sheet, which details the assets and liabilities composing the total value of the fund. AT 8/31/05 ASSETS - ------------------------------------------------------------------------------------------------------- Investments, at value, including $320,649,787 of securities on loan (identified cost, $1,911,946,324) $1,943,126,397 Cash 2,367,302 Receivable for investments sold 27,698,182 Receivable for fund shares sold 3,077,780 Interest and dividends receivable 2,046,729 Other assets 7,791 - ------------------------------------------------------------------------------------------------------- Total assets $1,978,324,181 - ------------------------------------------------------------------------------------------------------- LIABILITIES - ------------------------------------------------------------------------------------------------------- Payable for investments purchased $17,540,757 Payable for fund shares reacquired 3,168,407 Collateral for securities loaned, at value 328,217,468 Payable to affiliates Management fee 28,798 Shareholder servicing costs 387,427 Distribution and service fees 17,848 Administrative services fee 442 Program manager fees 6 Retirement plan administration and services fees 11 Accrued expenses and other liabilities 408,941 - ------------------------------------------------------------------------------------------------------- Total liabilities $349,770,105 - ------------------------------------------------------------------------------------------------------- Net assets $1,628,554,076 - ------------------------------------------------------------------------------------------------------- NET ASSETS CONSIST OF: - ------------------------------------------------------------------------------------------------------- Paid-in capital $2,993,240,499 Unrealized appreciation (depreciation) on investments and translation of assets and liabilities in foreign currencies 31,180,073 Accumulated net realized gain (loss) on investments and foreign currency transactions (1,394,420,018) Accumulated net investment loss (1,446,478) - ------------------------------------------------------------------------------------------------------- Net assets $1,628,554,076 - ------------------------------------------------------------------------------------------------------- Shares of beneficial interest outstanding 87,228,455 - ------------------------------------------------------------------------------------------------------- Class A shares - ------------------------------------------------------------------------------------------------------- Net assets $518,617,585 Shares outstanding 27,651,713 - ------------------------------------------------------------------------------------------------------- Net asset value per share $18.76 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25X$18.76) $19.90 - ------------------------------------------------------------------------------------------------------- Class B shares - ------------------------------------------------------------------------------------------------------- Net assets $381,085,410 Shares outstanding 21,309,787 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $17.88 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class C shares - ------------------------------------------------------------------------------------------------------- Net assets $89,289,704 Shares outstanding 4,983,695 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $17.92 - ------------------------------------------------------------------------------------------------------- Class I shares - ------------------------------------------------------------------------------------------------------- Net assets $633,593,461 Shares outstanding 32,961,579 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $19.22 - ------------------------------------------------------------------------------------------------------- Class R shares (formerly Class R1) - ------------------------------------------------------------------------------------------------------- Net assets $3,783,537 Shares outstanding 202,493 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $18.68 - ------------------------------------------------------------------------------------------------------- Class R1 shares - ------------------------------------------------------------------------------------------------------- Net assets $203,825 Shares outstanding 11,406 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $17.87 - ------------------------------------------------------------------------------------------------------- Class R2 shares - ------------------------------------------------------------------------------------------------------- Net assets $133,155 Shares outstanding 7,443 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $17.89 - ------------------------------------------------------------------------------------------------------- Class R3 shares (formerly Class R2) - ------------------------------------------------------------------------------------------------------- Net assets $821,829 Shares outstanding 44,188 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $18.60 - ------------------------------------------------------------------------------------------------------- Class R4 shares - ------------------------------------------------------------------------------------------------------- Net assets $52,148 Shares outstanding 2,781 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $18.75 - ------------------------------------------------------------------------------------------------------- Class R5 shares - ------------------------------------------------------------------------------------------------------- Net assets $52,213 Shares outstanding 2,780 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $18.78 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class 529A shares - ------------------------------------------------------------------------------------------------------- Net assets $480,789 Shares outstanding 25,806 - ------------------------------------------------------------------------------------------------------- Net asset value per share $18.63 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25X$18.63) $19.77 - ------------------------------------------------------------------------------------------------------- Class 529B shares - ------------------------------------------------------------------------------------------------------- Net assets $150,515 Shares outstanding 8,475 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $17.76 - ------------------------------------------------------------------------------------------------------- Class 529C shares - ------------------------------------------------------------------------------------------------------- Net assets $289,905 Shares outstanding 16,309 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $17.78 - ------------------------------------------------------------------------------------------------------- On sales of $50,000 or more, the offering price of Class A and Class 529A shares is reduced. A contingent deferred sales charge may be imposed on redemptions of Class A, Class B, Class C, Class 529B and Class 529C shares. SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statement of Operations This statement describes how much your fund received in investment income and paid in expenses. It also describes any gains and/or losses generated by fund operations. YEAR ENDED 8/31/05 NET INVESTMENT LOSS - ------------------------------------------------------------------------------------------------------ Income Dividends $19,650,840 Interest 994,892 Foreign taxes withheld (150,679) - ------------------------------------------------------------------------------------------------------ Total investment income $20,495,053 - ------------------------------------------------------------------------------------------------------ Expenses Management fee $11,913,409 Distribution and service fees 7,054,959 Program manager fees 2,219 Shareholder servicing costs 2,942,183 Administrative services fee 159,647 Retirement plan administration and services fees 1,954 Trustees' compensation 69,027 Custodian fee 386,954 Printing 197,778 Postage 80,900 Auditing fees 50,710 Legal fees 101,623 Shareholder solicitation expenses 154,064 Miscellaneous 14,237 - ------------------------------------------------------------------------------------------------------ Total expenses $23,129,664 - ------------------------------------------------------------------------------------------------------ Fees paid indirectly (119,476) Reduction of expenses by investment adviser (1,591,897) - ------------------------------------------------------------------------------------------------------ Net expenses $21,418,291 - ------------------------------------------------------------------------------------------------------ Net investment loss $(923,238) - ------------------------------------------------------------------------------------------------------ REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS - ------------------------------------------------------------------------------------------------------ Realized gain (loss) (identified cost basis) Investment transactions $62,237,807 Foreign currency transactions 13,938 - ------------------------------------------------------------------------------------------------------ Net realized gain (loss) on investments and foreign currency transactions $62,251,745 - ------------------------------------------------------------------------------------------------------ Change in unrealized appreciation (depreciation) Investments $125,828,953 Translation of assets and liabilities in foreign currencies (2,267) - ------------------------------------------------------------------------------------------------------ Net unrealized gain (loss) on investments and foreign currency translation $125,826,686 - ------------------------------------------------------------------------------------------------------ Net realized and unrealized gain (loss) on investments and foreign currency $188,078,431 - ------------------------------------------------------------------------------------------------------ Change in net assets from operations $187,155,193 - ------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statements of Changes in Net Assets This statement describes the increases and/or decreases in net assets resulting from operations, any distributions, and any shareholder transactions. FOR YEARS ENDED 8/31 2005 2004 CHANGE IN NET ASSETS - ------------------------------------------------------------------------------------------------------- FROM OPERATIONS - ------------------------------------------------------------------------------------------------------- Net investment loss $(923,238) $(10,384,701) Net realized gain (loss) on investments and foreign currency transactions 62,251,745 103,987,570 Net unrealized gain (loss) on investments and foreign currency translation 125,826,686 (92,871,441) - ------------------------------------------------------------------------------------------------------- Change in net assets from operations $187,155,193 $731,428 - ------------------------------------------------------------------------------------------------------- Change in net assets from fund share transactions $(77,169,494) $28,208,131 - ------------------------------------------------------------------------------------------------------- Redemption fees $755 $2,033 - ------------------------------------------------------------------------------------------------------- Total change in net assets $109,986,454 $28,941,592 - ------------------------------------------------------------------------------------------------------- NET ASSETS - ------------------------------------------------------------------------------------------------------- At beginning of period $1,518,567,622 $1,489,626,030 At end of period (including accumulated net investment loss of $1,446,478 and $2,056,149, respectively) $1,628,554,076 $1,518,567,622 - ------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Financial Highlights The financial highlights table is intended to help you understand the fund's financial performance for the past 5 years (or, if shorter, the period of the fund's operation). Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund (assuming reinvestment of all distributions) held for the entire period. This information has been audited by the fund's independent registered public accounting firm, whose report, together with the fund's financial statements, are included in this report. CLASS A YEARS ENDED 8/31 ---------------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $16.62 $16.57 $14.03 $19.22 $39.19 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------------- Net investment income (loss) $0.01 $(0.08) $(0.07) $(0.13) $(0.17) Net realized and unrealized gain (loss) on investments and foreign currency 2.13 0.13 2.61 (4.97) (15.53) - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.14 $0.05 $2.54 $(5.10) $(15.70) - ----------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions -- -- -- (0.09) (4.27) - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $18.76 $16.62 $16.57 $14.03 $19.22 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 12.88*** 0.30+*** 18.10^^^ (26.70) (42.93) - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.38 1.37 1.41 1.45 1.37 Expenses after expense reductions## 1.28 1.32 1.41 1.45 1.37 Net investment income (loss) 0.05 (0.46) (0.46) (0.74) (0.67) Portfolio turnover 69 80 72 116 104 Net assets at end of period (000 Omitted) $518,618 $563,761 $673,767 $731,283 $984,529 - ----------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS B YEARS ENDED 8/31 ---------------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $15.95 $16.00 $13.65 $18.80 $38.45 - -------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - -------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.10) $(0.19) $(0.16) $(0.24) $(0.33) Net realized and unrealized gain (loss) on investments and foreign currency 2.03 0.14 2.51 (4.82) (15.23) - -------------------------------------------------------------------------------------------------------------------------- Total from investment operations $1.93 $(0.05) $2.35 $(5.06) $(15.56) - -------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions -- -- -- (0.09) (4.09) - -------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $17.88 $15.95 $16.00 $13.65 $18.80 - -------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 12.10*** (0.31)+*** 17.22^^^ (27.08) (43.32) - -------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.02 2.02 2.06 2.10 2.02 Expenses after expense reductions## 1.92 1.97 2.06 2.10 2.02 Net investment loss (0.60) (1.10) (1.12) (1.39) (1.32) Portfolio turnover 69 80 72 116 104 Net assets at end of period (000 Omitted) $381,085 $427,364 $505,090 $490,326 $820,848 - -------------------------------------------------------------------------------------------------------------------------- CLASS C YEARS ENDED 8/31 --------------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $15.98 $16.03 $13.67 $18.84 $38.54 - -------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - -------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.10) $(0.19) $(0.16) $(0.24) $(0.34) Net realized and unrealized gain (loss) on investments and foreign currency 2.04 0.14 2.52 (4.84) (15.25) - -------------------------------------------------------------------------------------------------------------------------- Total from investment operations $1.94 $(0.05) $2.36 $(5.08) $(15.59) - -------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions -- -- -- (0.09) (4.11) - -------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $17.92 $15.98 $16.03 $13.67 $18.84 - -------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 12.14*** (0.31)+*** 17.26^^^ (27.13) (43.29) - -------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.02 2.02 2.06 2.10 2.02 Expenses after expense reductions## 1.92 1.97 2.06 2.10 2.02 Net investment loss (0.58) (1.10) (1.12) (1.39) (1.32) Portfolio turnover 69 80 72 116 104 Net assets at end of period (000 Omitted) $89,290 $114,023 $141,307 $148,930 $270,903 - -------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS I YEARS ENDED 8/31 --------------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $16.97 $16.86 $14.24 $19.41 $39.53 - -------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - -------------------------------------------------------------------------------------------------------------------------- Net investment income (loss) $0.07 $(0.01) $(0.01) $(0.07) $(0.08) Net realized and unrealized gain (loss) on investments and foreign currency 2.18 0.12 2.63 (5.01) (15.68) - -------------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.25 $0.11 $2.62 $(5.08) $(15.76) - -------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions -- -- -- (0.09) (4.36) - -------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $19.22 $16.97 $16.86 $14.24 $19.41 - -------------------------------------------------------------------------------------------------------------------------- Total return (%)& 13.26*** 0.65+*** 18.40^^^ (26.37) (42.73) - -------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.01 1.01 1.06 1.10 1.02 Expenses after expense reductions## 0.91 0.96 1.06 1.10 1.02 Net investment income (loss) 0.35 (0.06) (0.10) (0.39) (0.32) Portfolio turnover 69 80 72 116 104 Net assets at end of period (000 Omitted) $633,593 $405,006 $163,758 $26,193 $28,455 - -------------------------------------------------------------------------------------------------------------------------- CLASS R (FORMERLY CLASS R1) YEARS ENDED 8/31 ---------------------------------------------------- 2005= 2004= 2003** Net asset value, beginning of period $16.58 $16.55 $13.92### - -------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - -------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.03) $(0.09) $(0.06) Net realized and unrealized gain (loss) on investments and foreign currency 2.13 0.12 2.69 - -------------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.10 $0.03 $2.63 - -------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $18.68 $16.58 $16.55 - -------------------------------------------------------------------------------------------------------------------------- Total return (%)& 12.67*** 0.18+*** 18.89###++^^^ - -------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.53 1.49 1.60+ Expenses after expense reductions## 1.43 1.44 1.60+ Net investment loss (0.16) (0.52) (0.60)+ Portfolio turnover 69 80 72 Net assets at end of period (000 Omitted) $3,784 $1,982 $221 - -------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R1 CLASS R2 YEAR ENDED YEAR ENDED 8/31/05** 8/31/05** Net asset value, beginning of period $17.19 $17.19 - ------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.08) $(0.05) Net realized and unrealized gain (loss) on investments and foreign currency 0.76 0.75 - ------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.68 $0.70 - ------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $17.87 $17.89 - ------------------------------------------------------------------------------------------------------------------- Total return (%)&*** 3.96++ 4.07++ - ------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.23+ 1.95+ Expenses after expense reductions## 2.13+ 1.85+ Net investment loss (1.06)+ (0.80)+ Portfolio turnover 69 69 Net assets at end of period (000 Omitted) $204 $133 - ------------------------------------------------------------------------------------------------------------------- CLASS R3 (FORMERLY CLASS R2) YEARS ENDED 8/31 ----------------------------------------------------------- 2005= 2004=** Net asset value, beginning of period $16.55 $16.99### - -------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - -------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.10) $(0.10) Net realized and unrealized gain (loss) on investments and foreign currency 2.15 (0.34) - -------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.05 $(0.44) - -------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $18.60 $16.55 - -------------------------------------------------------------------------------------------------------------------- Total return (%)&*** 12.39 (2.59)###+++ - -------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.78 1.71+ Expenses after expense reductions## 1.68 1.66+ Net investment loss (0.53) (0.74)+ Portfolio turnover 69 80 Net assets at end of period (000 Omitted) $822 $309 - -------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R4 CLASS R5 YEAR ENDED YEAR ENDED 8/31/05** 8/31/05** Net asset value, beginning of period $17.98 $17.98 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.03) $(0.01) Net realized and unrealized gain (loss) on investments and foreign currency 0.80 0.81 - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.77 $0.80 - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $18.75 $18.78 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)&*** 4.28++ 4.45++ - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.45+ 1.15+ Expenses after expense reductions## 1.35+ 1.05+ Net investment loss (0.37)+ (0.07)+ Portfolio turnover 69 69 Net assets at end of period (000 Omitted) $52 $52 - ---------------------------------------------------------------------------------------------------------------------------- CLASS 529A YEARS ENDED 8/31 -------------------------------------------------------------------- 2005= 2004= 2003 2002** Net asset value, beginning of period $16.55 $16.52 $14.03 $13.89### - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.04) $(0.12) $(0.10) $(0.01) Net realized and unrealized gain (loss) on investments and foreign currency 2.12 0.15 2.59 0.15 - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.08 $0.03 $2.49 $0.14 - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $18.63 $16.55 $16.52 $14.03 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 12.57*** 0.18+*** 17.75^^^ 1.01###++ - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.62 1.61 1.67 1.70+ Expenses after expense reductions## 1.52 1.56 1.67 1.70+ Net investment loss (0.25) (0.68) (0.69) (0.74)+ Portfolio turnover 69 80 72 116 Net assets at end of period (000 Omitted) $481 $394 $225 $5 - ---------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529B YEARS ENDED 8/31 --------------------------------------------------------------------- 2005= 2004= 2003 2002** Net asset value, beginning of period $15.88 $15.97 $13.65 $13.52### - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.15) $(0.22) $(0.19) $(0.02) Net realized and unrealized gain (loss) on investments and foreign currency 2.03 0.13 2.51 0.15 - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $1.88 $(0.09) $2.32 $0.13 - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $17.76 $15.88 $15.97 $13.65 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 11.84*** (0.56)+*** 17.00^^^ 0.96###++ - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.27 2.25 2.33 2.35+ Expenses after expense reductions## 2.17 2.20 2.33 2.35+ Net investment loss (0.88) (1.31) (1.37) (1.39)+ Portfolio turnover 69 80 72 116 Net assets at end of period (000 Omitted) $151 $143 $79 $5 - ---------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529C YEARS ENDED 8/31 -------------------------------------------------------------- 2005= 2004= 2003 2002** Net asset value, beginning of period $15.90 $15.99 $13.67 $13.54### - ------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.16) $(0.22) $(0.19) $(0.02) Net realized and unrealized gain (loss) on investments and foreign currency 2.04 0.13 2.51 0.15 - ------------------------------------------------------------------------------------------------------------------------- Total from investment operations $1.88 $(0.09) $2.32 $0.13 - ------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $17.78 $15.90 $15.99 $13.67 - ------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 11.82*** (0.56)+*** 16.97^^^ 0.96###++ - ------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.27 2.25 2.30 2.35+ Expenses after expense reductions## 2.17 2.20 2.30 2.35+ Net investment loss (0.91) (1.29) (1.35) (1.38)+ Portfolio turnover 69 80 72 116 Net assets at end of period (000 Omitted) $290 $221 $58 $5 - ------------------------------------------------------------------------------------------------------------------------- ** For the period from the class' inception, December 31, 2002 (Class R), July 31, 2002 (Classes 529A, 529B, and 529C), October 31, 2003 (Class R3) and April 1, 2005 (Classes R1, R2, R4, and R5) through the stated period end. *** Certain expenses have been reduced without which performance would have been lower. + Annualized. ++ Not annualized. # Per share data are based on average shares outstanding. ## Ratios do not reflect reductions from fees paid indirectly. ### The net asset values and total returns previously reported as $13.94 and 18.72% (Class R), $17.01 and (2.70)% (Class R3), $13.88 and 1.08% (Class 529A), $13.51 and 1.04% (Class 529B), and $13.53 and 1.03% (Class 529C), respectively, have been revised to reflect the net asset value from the day prior to the class' inception date. The net asset values and total returns previously reported were from inception date, the date the share classes were first available to public shareholders. (+) Total returns do not include any applicable sales charges. & From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. = Redemption fees charged by the fund during this period resulted in a per share impact of less than $0.01. + The fund's net asset value and total return calculation included a non-recurring accural recorded as a result of an administrative proceeding regarding disclosure of brokerage allocation practices in connection with fund sales. The non- recurring accrual did not have a material impact on the net asset value per share based on the shares outstanding on the day the proceeds were recorded. ^^^ The fund's net asset value and total return calculation include proceeds received on March 26, 2003 for the partial payment of a non-recurring litigation settlement from Cendant Corporation, recorded as a realized gain on investment transactions. The proceeds resulted in an increase in the net asset value of $0.01 per share based on shares outstanding on the day the proceeds were received. Excluding the effect of this payment from the ending net asset value per share for, Class A, Class B, Class C, Class I, Class R, Class 529A, Class 529B, and Class 529C, total returns for the year ended August 31, 2003 would have been lower by approximately 0.08%, 0.09%, 0.08%, 0.09%, 0.08%, 0.09%, 0.09%, and 0.09%, respectively. SEE NOTES TO FINANCIAL STATEMENTS NOTES TO FINANCIAL STATEMENTS (1) BUSINESS AND ORGANIZATION MFS Strategic Growth Fund (the fund) is a diversified series of MFS Series Trust I (the trust). The trust is organized as a Massachusetts business trust and is registered under the Investment Company Act of 1940, as amended, as an open-end management investment company. (2) SIGNIFICANT ACCOUNTING POLICIES GENERAL - The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The fund can invest in foreign securities. Investments in foreign securities are vulnerable to the effects of changes in the relative values of the local currency and the U.S. dollar and to the effects of changes in each country's legal, political, and economic environment. INVESTMENT VALUATIONS - Equity securities in the fund's portfolio for which market quotations are available are valued at the last sale or official closing price as reported by an independent pricing service on the primary market or exchange on which they are primarily traded, or at the last quoted bid price for securities in which there were no sales during the day. Equity securities traded over the counter are valued at the last sales price traded each day as reported by an independent pricing service, or to the extent there are no sales reported, such securities are valued on the basis of quotations obtained from brokers and dealers. Short-term obligations with a remaining maturity in excess of 60 days will be valued upon dealer-supplied valuations. All other short-term obligations in the fund's portfolio are valued at amortized cost, which approximates market value as determined by the Board of Trustees. Money market mutual funds are valued at net asset value. Investment valuations, other assets, and liabilities initially expressed in foreign currencies are converted each business day into U.S. dollars based upon current exchange rates. When pricing service information or market quotations are not readily available, securities are priced at fair value as determined under the direction of the Board of Trustees. For example, significant events (such as movement in the U.S. securities market, or other regional and local developments) may occur between the time that foreign markets close (where the security is principally traded) and the time that the fund calculates its net asset value (generally, the close of the NYSE) that may impact the value of securities traded in these foreign markets. In these cases, the fund may utilize information from an external vendor or other sources to adjust closing market quotations of foreign equity securities to reflect what it believes to be the fair value of the securities as of the fund's valuation time. Because the frequency of significant events is not predictable, fair valuation of foreign equity securities may occur on a frequent basis. REPURCHASE AGREEMENTS - The fund may enter into repurchase agreements with institutions that the fund's investment adviser has determined are creditworthy. Each repurchase agreement is recorded at cost. The fund requires that the securities collateral in a repurchase transaction be transferred to the custodian in a manner sufficient to enable the fund to obtain those securities in the event of a default under the repurchase agreement. The fund monitors, on a daily basis, the value of the collateral to ensure that its value, including accrued interest, is greater than amounts owed to the fund under each such repurchase agreement. The fund, along with other affiliated entities of Massachusetts Financial Services Company (MFS), may utilize a joint trading account for the purpose of entering into one or more repurchase agreements. FOREIGN CURRENCY TRANSLATION - Purchases and sales of foreign investments, income, and expenses are converted into U.S. dollars based upon currency exchange rates prevailing on the respective dates of such transactions. Gains and losses attributable to foreign currency exchange rates on sales of securities are recorded for financial statement purposes as net realized gains and losses on investments. Gains and losses attributable to foreign exchange rate movements on income and expenses are recorded for financial statement purposes as foreign currency transaction gains and losses. That portion of both realized and unrealized gains and losses on investments that results from fluctuations in foreign currency exchange rates is not separately disclosed. SECURITY LOANS - State Street Bank and Trust Company ("State Street"), as lending agent, may loan the securities of the fund to certain qualified institutions (the "Borrowers") approved by the fund. The loans are collateralized at all times by cash and/or U.S. Treasury securities in an amount at least equal to the market value of the securities loaned. State Street provides the fund with indemnification against Borrower default. The fund bears the risk of loss with respect to the investment of cash collateral. On loans collateralized by cash, the cash collateral is invested in a money market fund or short-term securities. A portion of the income generated upon investment of the collateral is remitted to the Borrowers, and the remainder is allocated between the fund and the lending agent. On loans collateralized by U.S. Treasury securities, a fee is received from the Borrower, and is allocated between the fund and the lending agent. Income from securities lending is included in interest income on the Statement of Operations. The dividend and interest income earned on the securities loaned is accounted for in the same manner as other dividend and interest income. SHORT TERM FEES - For purchases made on or after July 1, 2004 and before April 1, 2005, the fund will charge a 2% redemption fee (which is retained by the fund) on proceeds from Class A, Class B, Class C, and Class I shares redeemed or exchanged within 5 business days following their acquisition (either by purchase or exchange). Effective April 1, 2005, the fund will no longer charge a redemption fee. See the fund's prospectus for details. Any redemption fees charged are accounted for as an addition to paid-in capital. INVESTMENT TRANSACTIONS AND INCOME - Investment transactions are recorded on the trade date. Interest income is recorded on the accrual basis. All premium and discount is amortized or accreted for financial statement purposes in accordance with U.S. generally accepted accounting principles. All discount is accreted for tax reporting purposes as required by federal income tax regulations. Dividends received in cash are recorded on the ex-dividend date. Dividend and interest payments received in additional securities are recorded on the ex-dividend or ex-interest date in an amount equal to the value of the security on such date. The fund may receive proceeds from litigation settlements involving its portfolio holdings. Any proceeds received are reflected in realized gain/loss in the Statement of Operations, or in unrealized gain/loss if the security is still held by the fund. FEES PAID INDIRECTLY - The fund's custody fee is reduced according to an arrangement that measures the value of cash deposited with the custodian by the fund. During the year ended August 31, 2005, the fund's custodian fees were reduced by $58,461 under this arrangement. The fund has entered into a commission recapture agreement, under which certain brokers will credit the fund a portion of the commissions generated, to offset certain expenses of the fund. For the year ended August 31, 2005, the fund's miscellaneous expenses were reduced by $61,015 under this agreement. These amounts are shown as a reduction of total expenses on the Statement of Operations. TAX MATTERS AND DISTRIBUTIONS - The fund's policy is to comply with the provisions of the Internal Revenue Code (the Code) applicable to regulated investment companies and to distribute to shareholders all of its net taxable income, including any net realized gain on investments. Accordingly, no provision for federal income or excise tax is provided. Distributions to shareholders are recorded on the ex-dividend date. The fund distinguishes between distributions on a tax basis and a financial reporting basis and only distributions in excess of tax basis earnings and profits are reported in the financial statements as distributions from paid-in capital. Differences in the recognition or classification of income between the financial statements and tax earnings and profits, which result in temporary over-distributions for financial statement purposes, are classified as distributions in excess of net investment income or net realized gains. Common types of book and tax differences that could occur include differences in accounting for foreign currency transactions, wash sales, defaulted bonds and net operating losses. The fund paid no distributions for the years ended August 31, 2005 and August 31, 2004. During the year ended August 31, 2005, accumulated net investment loss decreased by $1,532,909, accumulated net realized loss on investments and foreign currency transactions increased by $283,287,106, and paid-in capital increased by $281,754,197 due to differences between book and tax accounting for foreign currency transactions, net operating losses, defaulted bonds, capital loss carryforward and wash sales loss deferrals assumed as a result of the acquisition. This change had no impact on net assets or net asset value per share. As of August 31, 2005, the components of distributable earnings (accumulated losses) on a tax basis were as follows: Capital loss carryforward $(1,380,142,592) Unrealized appreciation (depreciation) 16,902,647 Other temporary differences (1,446,478) For federal income tax purposes, the capital loss carryforward may be applied against any net taxable realized gains of each succeeding year until the earlier of its utilization or expiration on: EXPIRATION DATE August 31, 2009 $(186,542,212) August 31, 2010 (863,824,612) August 31, 2011 (299,742,793) August 31, 2012 (30,032,975) -------------------------------------------------------- Total $(1,380,142,592) The availability of a portion of the capital loss carryforwards, which were acquired on June 10, 2005 in connection with the MFS Managed Sectors Fund merger, may be limited in a given year. MULTIPLE CLASSES OF SHARES OF BENEFICIAL INTEREST - The fund offers multiple classes of shares, which differ in their respective distribution and service fees. All shareholders bear the common expenses of the fund based on daily net assets of each class, without distinction between share classes. Dividends are declared separately for each class. Differences in per share dividend rates are generally due to differences in separate class expenses. Class B and Class 529B shares will convert to Class A and Class 529A shares, respectively, approximately eight years after purchase. Class J shares closed on April 15, 2005. (3) TRANSACTIONS WITH AFFILIATES INVESTMENT ADVISER - The fund has an investment advisory agreement with Massachusetts Financial Services Company (MFS) to provide overall investment advisory and administrative services, and general office facilities. The management fee is computed daily and paid monthly at an annual rate of 0.75% of the fund's average daily net assets. As part of a settlement agreement with the New York Attorney General concerning market timing and related matters, MFS has agreed to reduce the management fee to 0.65% of the fund's average daily net assets for the period March 1, 2004 through February 28, 2009. For the year ended August 31, 2005, this waiver is reflected as a reduction of total expenses in the Statement of Operations. The management fee incurred for the year ended August 31, 2005 was equivalent to an annual effective rate of 0.65% of the fund's average daily net assets. DISTRIBUTOR - MFS Fund Distributors, Inc. (MFD), a wholly owned subsidiary of MFS, as distributor, received $62,642 and $394 for the year ended August 31, 2005, as its portion of the initial sales charge on sales of Class A and Class 529A shares of the fund, respectively. The Board of Trustees has adopted a distribution plan for certain class shares pursuant to Rule 12b-1 of the Investment Company Act of 1940. The fund's distribution plan provides that the fund will pay MFD for services provided by MFD and financial intermediaries in connection with the distribution and servicing of certain share classes. One component of the plan is a distribution fee paid to and retained by MFD. Another component of the plan is a service fee paid to MFD which subsequently pays a portion of this fee to financial intermediaries that enter into sales or service agreements with MFD, or its affiliates, based on the average daily net assets of accounts attributable to such intermediaries. Distribution Fee Plan Table: TOTAL ANNUAL SERVICE FEE DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE RETAINED AND SERVICE FEE RATE FEE RATE PLAN(1) RATE(2) BY MFD(3) FEE Class A 0.10% 0.25% 0.35% 0.35% $49,222 $1,891,651 Class B 0.75% 0.25% 1.00% 1.00% 7,484 4,079,181 Class C 0.75% 0.25% 1.00% 1.00% 3,780 1,026,828 Class J 0.75% 0.25% 1.00% 1.00% -- 32,171 Class R 0.25% 0.25% 0.50% 0.50% 15 15,482 Class R1 0.50% 0.25% 0.75% 0.75% 93 321 Class R2 0.25% 0.25% 0.50% 0.50% 62 128 Class R3 0.25% 0.25% 0.50% 0.50% 24 3,210 Class R4 -- 0.25% 0.25% 0.25% 31 54 Class 529A 0.25% 0.25% 0.50% 0.35% 473 1,584 Class 529B 0.75% 0.25% 1.00% 1.00% 15 1,634 Class 529C 0.75% 0.25% 1.00% 1.00% 58 2,715 - -------------------------------------------------------------------------------- Total Distribution and Service Fees $7,054,959 (1) In accordance with the distribution plan for certain classes, the fund pays distribution and/or service fees up to these annual percentage rates of each class' average daily net assets. (2) The annual effective rates represent actual fees incurred under the distribution plan for the year ended August 31, 2005 based on each class' average daily net assets. 0.10% of the Class 529A distribution fee is currently being paid by the fund. Payment of the remaining 0.15% of the Class 529A distribution fee is not yet implemented and will commence on such date as the fund's Board of Trustees may determine. (3) For the year ended August 31, 2005, MFD retained these service fees. Certain Class A, Class C and Class 529C shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within 12 months of purchase. Class B and Class 529B shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within six years of purchase. MFD retained all contingent deferred sales charges. Contingent deferred sales charges imposed during the year ended August 31, 2005 were as follows: AMOUNT Class A $26,554 Class B 845,907 Class C 9,372 Class 529B 133 Class 529C -- The fund has entered into and may from time to time enter into contracts with program managers and other parties which administer the tuition programs through which an investment in the fund's 529 share classes is made. The fund has entered into an agreement with MFD pursuant to which MFD receives an annual fee of up to 0.35% from the fund based solely upon the value of the fund's 529 share classes attributable to tuition programs to which MFD, or a third party which contracts with MFD, provides administrative services. The current fee has been established at 0.25% annually of average net assets of the fund's 529 share classes. The fee may only be increased with the approval of the Board of Trustees who oversees the fund. The services provided by MFD, or a third party with which MFD contracts, include recordkeeping and tax reporting and account services, as well as services designed to maintain the program's compliance with the Internal Revenue Code and other regulatory requirements. Program manager fees for the year ended August 31, 2005, were as follows: AMOUNT Class 529A $1,131 Class 529B $409 Class 529C $679 ------------------------------------------------------- Total Program Manager Fees $2,219 SHAREHOLDER SERVICING AGENT - The fund pays a portion of shareholder servicing costs to MFS Service Center, Inc. (MFSC), a wholly-owned subsidiary of MFS. MFSC receives a fee from the fund, for its services as shareholder servicing agent, set periodically under the supervision of the fund's Board of Trustees. For the year ended August 31, 2005, the fee was $1,639,657, which equated to 0.1034% annually of the fund's average daily net assets. MFSC also receives payment from the fund for out-of-pocket and sub-accounting expenses paid by MFSC on behalf of the fund. For the year ended August 31, 2005, these costs amounted to $782,049. ADMINISTRATOR - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to certain funds for which MFS acts as investment adviser. Under an administrative services agreement, the funds may partially reimburse MFS the costs incurred to provide these services, subject to review and approval by the Board of Trustees. Each fund is charged a fixed amount plus a fee based on calendar year average net assets. Effective July 1, 2005, the fund's annual fixed amount is $10,000. The administrative services fee incurred for the year ended August 31, 2005 was equivalent to an annual effective rate of 0.0101% of the fund's average daily net assets. In addition to the administrative services provided by MFS to the fund as described above, MFS is responsible for providing certain retirement plan administration and services with respect to certain Class R shares. These services include various administrative, recordkeeping, and communication/ educational services with respect to the retirement plans which invest in these shares, and may be provided directly by MFS or by a third party. For the year ended August 31, 2005, the fund paid an annual retirement plan administration and services fee up to the following annual percentage rates of each class' average daily net assets: AMOUNT FEE TOTAL RETAINED RATE AMOUNT BY MFS Class R1 0.45% $193 $148 Class R2 0.40% 103 76 Class R3 (formerly Class R2) 0.25% 1,605 890 Class R4 0.15% 32 11 Class R5 0.10% 21 19 - ------------------------------------------------------------------------------ Total Retirement Plan Administration and Services Fees $1,954 $1,144 TRUSTEES' COMPENSATION - The fund pays compensation to Independent Trustees in the form of a retainer, attendance fees, and additional compensation to Board and Committee chairpersons. The fund does not pay compensation directly to Trustees who are officers of the investment adviser, or to officers of the fund, all of whom receive remuneration for their services to the fund from MFS. Certain officers and Trustees of the fund are officers or directors of MFS, MFD, and MFSC. The fund has an unfunded, defined benefit plan for retired Independent Trustees which resulted in a pension expense of $30,269. The fund also has an unfunded retirement benefit deferral plan for certain current Independent Trustees which resulted in an expense of $3,101. Both amounts are included in Trustees compensation for the year ended August 31, 2005. DEFERRED TRUSTEE COMPENSATION - Under a Deferred Compensation Plan (the Plan) Independent Trustees may elect to defer receipt of all or a portion of their annual compensation. Deferred amounts are treated as though equivalent dollar amounts had been invested in shares of the fund or other MFS funds selected by the Trustee. Deferred amounts represent an unsecured obligation of the fund until distributed in accordance with the Plan. Included in other assets, and accrued expenses and other liabilities, is $4,045 of Deferred Trustees' Compensation. OTHER - This fund and certain other MFS funds (the funds) have entered into a services agreement (the Agreement) which provides for payment of fees by the funds to Tarantino LLC in return for the provision of services of an Independent Chief Compliance Officer (ICCO) for the funds. The ICCO is an officer of the funds and the sole member of Tarantino LLC. MFS has agreed to reimburse the fund for a portion of the payments made by the funds to Tarantino LLC in the amount of $3,684, which is shown as a reduction of total expenses in the Statement of Operations. Additionally, MFS has agreed to bear all expenses associated with office space, other administrative support, and supplies provided to the ICCO. The funds can terminate the Agreement with Tarantino LLC at any time under the terms of the Agreement. The fund's investment adviser, MFS, was the subject of an administrative proceeding regarding disclosure of brokerage allocation practices in connection with fund sales. As a result, proceeds in the amount of $827,507 were paid to the fund on February 16, 2005. (4) PORTFOLIO SECURITIES Purchases and sales of investments, other than U.S. government securities, purchased option transactions, and short-term obligations, aggregated $1,070,768,805 and $1,311,255,276, respectively. The cost and unrealized appreciation and depreciation in the value of the investments owned by the fund, as computed on a federal income tax basis, are as follows: Aggregate cost $1,926,223,750 ------------------------------------------------------- Gross unrealized appreciation $107,865,933 Gross unrealized depreciation (90,963,286) ------------------------------------------------------- Net unrealized appreciation $16,902,647 (5) SHARES OF BENEFICIAL INTEREST The fund's Declaration of Trust permits the Trustees to issue an unlimited number of full and fractional shares of beneficial interest. Transactions in fund shares were as follows: Year ended 8/31/05 Year ended 8/31/04 SHARES AMOUNT SHARES AMOUNT CLASS A SHARES Shares sold 4,757,164 $85,935,893 9,135,629 $159,921,433 Shares issued in connection with acquisition of MFS Managed Sectors Fund 7,801,545 143,704,457 -- -- Shares reacquired (18,826,189) (339,752,339) (15,888,205) (278,004,488) - ----------------------------------------------------------------------------------------------------------- Net change (6,267,480) $(110,111,989) (6,752,576) $(118,083,055) CLASS B SHARES Shares sold 1,575,957 $27,392,859 2,724,980 $45,750,851 Shares issued in connection with acquisition of MFS Managed Sectors Fund 1,752,230 30,821,723 -- -- Shares reacquired (8,809,726) (152,957,259) (7,496,759) (125,557,730) - ----------------------------------------------------------------------------------------------------------- Net change (5,481,539) $(94,742,677) (4,771,779) $(79,806,879) CLASS C SHARES Shares sold 333,948 $5,798,886 924,461 $15,527,263 Shares issued in connection with acquisition of MFS Managed Sectors Fund 51,143 901,145 -- -- Shares reacquired (2,536,107) (43,995,123) (2,603,489) (43,764,517) - ----------------------------------------------------------------------------------------------------------- Net change (2,151,016) $(37,295,092) (1,679,028) $(28,237,254) CLASS I SHARES Shares sold 9,423,324 $174,295,462 14,464,089 $257,055,055 Shares issued in connection with acquisition of MFS Managed Sectors Fund 112,114 2,114,473 -- -- Shares reacquired (435,238) (8,147,845) (315,485) (5,591,834) - ----------------------------------------------------------------------------------------------------------- Net change 9,100,200 $168,262,090 14,148,604 $251,463,221 Year ended 8/31/05* Year ended 8/31/04 SHARES AMOUNT SHARES AMOUNT CLASS J SHARES Shares sold 22,747 $391,281 134,418 $2,218,836 Shares reacquired (360,973) (6,137,743) (118,008) (2,007,446) - ----------------------------------------------------------------------------------------------------------- Net change (338,226) $(5,746,462) 16,410 $211,390 CLASS R SHARES (FORMERLY CLASS R1) Shares sold 181,581 $3,303,225 122,633 $2,203,904 Shares reacquired (98,637) (1,804,140) (16,451) (285,108) - ----------------------------------------------------------------------------------------------------------- Net change 82,944 $1,499,085 106,182 $1,918,796 Period ended 8/31/05** SHARES AMOUNT CLASS R1 SHARES Shares sold 11,518 $205,511 Shares reacquired (112) (2,057) - ------------------------------------------------------------------------- Net change 11,406 $203,454 CLASS R2 SHARES Shares sold 8,385 $149,704 Shares reacquired (942) (17,054) - ------------------------------------------------------------------------- Net change 7,443 $132,650 Year ended 8/31/05 Year ended 8/31/04 SHARES AMOUNT SHARES AMOUNT CLASS R3 SHARES (FORMERLY CLASS R2) Shares sold 44,189 $809,232 18,703 $327,908 Shares reacquired (18,704) (347,920) -- -- - ----------------------------------------------------------------------------------------------------------- Net change 25,485 $461,312 18,703 $327,908 Period ended 8/31/05** SHARES AMOUNT CLASS R4 SHARES Shares sold 2,781 $50,000 - ------------------------------------------------------------------------- CLASS R5 SHARES Shares sold 2,780 $50,000 - ------------------------------------------------------------------------- Year ended 8/31/05 Year ended 8/31/04 SHARES AMOUNT SHARES AMOUNT CLASS 529A SHARES Shares sold 4,173 $75,144 11,639 $202,658 Shares reacquired (2,182) (38,496) (1,468) (25,484) - ----------------------------------------------------------------------------------------------------------- Net change 1,991 $36,648 10,171 $177,174 CLASS 529B SHARES Shares sold 1,599 $27,649 4,118 $68,611 Shares reacquired (2,154) (37,584) (38) (635) - ----------------------------------------------------------------------------------------------------------- Net change (555) $(9,935) 4,080 $67,976 CLASS 529C SHARES Shares sold 5,138 $89,910 10,500 $173,280 Shares reacquired (2,714) (48,488) (263) (4,426) - ----------------------------------------------------------------------------------------------------------- Net change 2,424 $41,422 10,237 $168,854 * Class J shares closed on April 15, 2005. ** For the period from the inception of Class R1, Class R2, Class R4, and Class R5 shares, April 1, 2005 through August 31, 2005. The fund is one of several mutual funds in which the MFS fund-of-funds may invest. The MFS fund-of-funds do not invest in the underlying MFS funds for the purpose of exercising management or control. At the end of the period, the MFS Moderate Allocation Fund, MFS Aggressive Growth Allocation, MFS Conservative Allocation Fund and MFS Growth Allocation Fund were the owners of record of approximately 10%, 10%, 2% and 16% respectively, of the value of outstanding voting shares. (6) LINE OF CREDIT The fund and other affiliated funds participate in a $1 billion unsecured line of credit provided by a syndication of banks under a credit agreement. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its borrowings, at a rate equal to the Federal Reserve funds rate plus 0.35%. In addition, a commitment fee, based on the average daily, unused portion of the line of credit, is allocated among the participating funds at the end of each calendar quarter. The commitment fee allocated to the fund for the year ended August 31, 2005 was $9,921 and is included in miscellaneous expense. The fund had no significant borrowings during the year ended August 31, 2005. (7) ACQUISITIONS At close of business on June 10, 2005, the fund acquired all of the assets and liabilities of MFS Managed Sectors Fund. The acquisition was accomplished by a tax-free exchange of 9,717,032 shares of the fund (valued at $177,541,798) for all of the assets and liabilities of MFS Managed Sectors Fund. MFS Managed Sectors Fund then converted all of its outstanding shares for the shares of the fund and distributed those shares to its shareholders. MFS Managed Sectors Fund's net assets on that date were $177,541,798, including $23,232,000 of unrealized appreciation, $538,133 of accumulated net investment loss, and $282,661,889 of accumulated net realized loss on investments and foreign currency transactions. These assets were combined with those of the fund. The aggregate net assets of the fund after the acquisition were $1,626,560,058. REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Trustees of MFS Series Trust I and Shareholders of MFS Strategic Growth Fund: We have audited the accompanying statement of assets and liabilities of MFS Strategic Growth Fund (the Fund) (one of the portfolios comprising MFS Series Trust I), including the portfolio of investments, as of August 31, 2005, and the related statement of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the periods indicated therein. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. We were not engaged to perform an audit of the Fund's internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of August 31, 2005, by correspondence with the custodian and brokers or by other appropriate auditing procedures where replies from brokers were not received. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of MFS Strategic Growth Fund at August 31, 2005, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and its financial highlights for each of the periods indicated therein, in conformity with U.S. generally accepted accounting principles. /s/ ERNST & YOUNG LLP Boston, Massachusetts October 11, 2005 RESULTS OF SHAREHOLDER MEETING (unaudited) - 8/31/05 At a special meeting of shareholders of MFS Series Trust I, which was held on March 23, 2005, the following action was taken: ITEM 1. To elect a Board of Trustees: NUMBER OF DOLLARS --------------------------------------------- NOMINEE AFFIRMATIVE WITHHOLD AUTHORITY Lawrence H. Cohn, M.D. $8,025,286,508.56 $117,939,292.78 - ------------------------------------------------------------------------------- David H. Gunning 8,030,402,677.64 112,823,123.70 - ------------------------------------------------------------------------------- William R. Gutow 8,027,523,726.27 115,702,075.07 - ------------------------------------------------------------------------------- Michael Hegarty 8,021,162,525.49 122,063,275.85 - ------------------------------------------------------------------------------- J. Atwood Ives 8,024,062,680.07 119,163,121.27 - ------------------------------------------------------------------------------- Amy B. Lane 8,019,792,882.59 123,432,918.75 - ------------------------------------------------------------------------------- Robert J. Manning 8,030,980,361.78 112,245,439.56 - ------------------------------------------------------------------------------- Lawrence T. Perera 8,025,935,401.12 117,290,400.22 - ------------------------------------------------------------------------------- Robert C. Pozen 8,031,655,470.25 111,570,331.09 - ------------------------------------------------------------------------------- J. Dale Sherratt 8,027,226,595.42 115,999,205.92 - ------------------------------------------------------------------------------- Laurie J. Thomsen 8,019,388,506.87 123,837,294.47 - ------------------------------------------------------------------------------- TRUSTEES AND OFFICERS -- IDENTIFICATION AND BACKGROUND The Trustees and officers of the Trust, as of October 1, 2005, are listed below, together with their principal occupations during the past five years. (Their titles may have varied during that period.) The address of each Trustee and officer is 500 Boylston Street, Boston, Massachusetts 02116. PRINCIPAL OCCUPATIONS DURING POSITION(s) HELD TRUSTEE/OFFICER THE PAST FIVE YEARS & NAME, DATE OF BIRTH WITH FUND SINCE(1) OTHER DIRECTORSHIPS(2) - ------------------- ---------------- --------------- ---------------------------- INTERESTED TRUSTEES Robert J. Manning(3) Trustee and February 2004 Massachusetts Financial Services (born 10/20/63) President Company, Chief Executive Officer, President, Chief Investment Officer and Director Robert C. Pozen(3) Trustee February 2004 Massachusetts Financial Services (born 08/08/46) Company, Chairman (since February 2004); Harvard Law School (education), John Olin Visiting Professor (since July 2002); Secretary of Economic Affairs, The Commonwealth of Massachusetts (January 2002 to December 2002); Fidelity Investments, Vice Chairman (June 2000 to December 2001); Fidelity Management & Research Company (investment adviser), President (March 1997 to July 2001); Bell Canada Enterprises (telecommunications), Director; Medtronic, Inc. (medical technology), Director; Telesat (satellite communications), Director INDEPENDENT TRUSTEES J. Atwood Ives Trustee and Chair February 1992 Private investor; Eastern (born 05/01/36) of Trustees Enterprises (diversified services company), Chairman, Trustee and Chief Executive Officer (until November 2000) Lawrence H. Cohn, M.D. Trustee August 1993 Brigham and Women's Hospital, (born 03/11/37) Chief of Cardiac Surgery; Harvard Medical School, Professor of Surgery David H. Gunning Trustee January 2004 Cleveland-Cliffs Inc. (mining (born 05/30/42) products and service provider), Vice Chairman/Director (since April 2001); Encinitos Ventures (private investment company), Principal (1997 to April 2001); Lincoln Electric Holdings, Inc. (welding equipment manufacturer), Director William R. Gutow Trustee December 1993 Private investor and real estate (born 09/27/41) consultant; Capitol Entertainment Management Company (video franchise), Vice Chairman Michael Hegarty Trustee December 2004 Retired; AXA Financial (financial (born 12/21/44) services and insurance), Vice Chairman and Chief Operating Officer (until May 2001); The Equitable Life Assurance Society (insurance), President and Chief Operating Officer (until May 2001) Amy B. Lane Trustee January 2004 Retired; Merrill Lynch & Co., (born 02/08/53) Inc., Managing Director, Investment Banking Group (1997 to February 2001); Borders Group, Inc. (book and music retailer), Director; Federal Realty Investment Trust (real estate investment trust), Trustee Lawrence T. Perera Trustee July 1981 Hemenway & Barnes (attorneys), (born 06/23/35) Partner J. Dale Sherratt Trustee August 1993 Insight Resources, Inc. (born 09/23/38) (acquisition planning specialists), President; Wellfleet Investments (investor in health care companies), Managing General Partner (since 1993); Cambridge Nutraceuticals (professional nutritional products), Chief Executive Officer (until May 2001) Laurie J. Thomsen Trustee March 2005 Private investor; Prism Venture (born 08/05/57) Partners (venture capital), Co- founder and General Partner (until June 2004); St. Paul Travelers Companies (commercial property liability insurance), Director OFFICERS Robert J. Manning(3) President and February 2004 Massachusetts Financial Services (born 10/20/63) Trustee Company, Chief Executive Officer, President, Chief Investment Officer and Director Tracy Atkinson(3) Treasurer September 2005 Massachusetts Financial Services (born 12/30/64) Company, Senior Vice President (since September 2004); PricewaterhouseCoopers LLP, Partner (prior to September 2004) Christopher R. Bohane(3) Assistant July 2005 Massachusetts Financial Services (born 1/18/74) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since April 2003); Kirkpatrick & Lockhart LLP (law firm), Associate (prior to April 2003); Nvest Services Company, Assistant Vice President and Associate Counsel (prior to January 2001) Jeffrey N. Carp(3) Secretary and September 2004 Massachusetts Financial Services (born 12/01/56) Clerk Company, Executive Vice President, General Counsel and Secretary (since April 2004); Hale and Dorr LLP (law firm), Partner (prior to April 2004) Ethan D. Corey(3) Assistant July 2005 Massachusetts Financial Services (born 11/21/63) Secretary and Company, Special Counsel (since Assistant Clerk December 2004); Dechert LLP (law firm), Counsel (prior to December 2004) Stephanie A. DeSisto(3) Assistant May 2003 Massachusetts Financial Services (born 10/01/53) Treasurer Company, Vice President (since April 2003); Brown Brothers Harriman & Co., Senior Vice President (November 2002 to April 2003); ING Groep N.V./Aeltus Investment Management, Senior Vice President (prior to November 2002) David L. DiLorenzo(3) Assistant July 2005 Massachusetts Financial Services (born 8/10/68) Treasurer Company, Vice President (since June 2005); JP Morgan Investor Services, Vice President (January 2001 to June 2005); State Street Bank, Vice President and Corporate Audit Manager (prior to January 2001) Timothy M. Fagan(3) Assistant September 2005 Massachusetts Financial Services (born 7/10/68) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since September 2005); John Hancock Advisers, LLC, Vice President and Chief Compliance Officer (September 2004 to August 2005), Senior Attorney (prior to September 2004); John Hancock Group of Funds, Vice President and Chief Compliance Officer (September 2004 to December 2004) Mark D. Fischer(3) Assistant July 2005 Massachusetts Financial Services (born 10/27/70) Treasurer Company, Vice President (since May 2005); JP Morgan Investment Management Company, Vice President (prior to May 2005) Brian T. Hourihan(3) Assistant September 2004 Massachusetts Financial Services (born 11/11/64) Secretary and Company, Vice President, Senior Assistant Clerk Counsel and Assistant Secretary (since June 2004); Affiliated Managers Group, Inc., Chief Legal Officer/Centralized Compliance Program (January to April 2004); Fidelity Research & Management Company, Assistant General Counsel (prior to January 2004) Ellen Moynihan(3) Assistant April 1997 Massachusetts Financial Services (born 11/13/57) Treasurer Company, Vice President Susan S. Newton(3) Assistant May 2005 Massachusetts Financial Services (born 03/07/50) Secretary and Company, Senior Vice President and Assistant Clerk Associate General Counsel (since April 2005); John Hancock Advisers, LLC, Senior Vice President, Secretary and Chief Legal Officer (prior to April 2005); John Hancock Group of Funds, Senior Vice President, Secretary and Chief Legal Officer (prior to April 2005) Susan A. Pereira(3) Assistant July 2005 Massachusetts Financial Services (born 11/05/70) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since June 2004); Bingham McCutchen LLP (law firm), Associate (January 2001 to June 2004); Preti, Flaherty, Beliveau, Pachios & Haley, LLC, Associate (prior to January 2001) Frank L. Tarantino Independent Chief June 2004 Tarantino LLC (provider of (born 03/07/44) Compliance compliance services), Principal Officer (since June 2004); CRA Business Strategies Group (consulting services), Executive Vice President (April 2003 to June 2004); David L. Babson & Co. (investment adviser), Managing Director, Chief Administrative Officer and Director (February 1997 to March 2003) James O. Yost(3) Assistant September 1990 Massachusetts Financial Services (born 06/12/60) Treasurer Company, Senior Vice President - ------------ (1) Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served continuously since appointment unless indicated otherwise. (2) Directorships or trusteeships of companies required to report to the Securities and Exchange Commission (i.e., "public companies"). (3) "Interested person" of the Trust within the meaning of the Investment Company Act of 1940 (referred to as the 1940 Act), which is the principal federal law governing investment companies like the fund, as a result of position with MFS. The address of MFS is 500 Boylston Street, Boston, Massachusetts 02116. Each Trustee has been elected by shareholders and each Trustee and officer holds office until his or her successor is chosen and qualified or until his or her earlier death, resignation, retirement or removal. Messrs. Ives and Sherratt and Mses. Lane and Thomsen are members of the Trust's Audit Committee. Each of the Trust's Trustees and officers holds comparable positions with certain other funds of which MFS or a subsidiary is the investment adviser or distributor, and, in the case of the officers, with certain affiliates of MFS. As of December 31, 2004, each Trustee served as a board member of 99 funds within the MFS Family of Funds. The Trust held a shareholders' meeting in 2005, and will hold a shareholders' meeting at least once every five years thereafter, to elect Trustees. The Statement of Additional Information contains further information about the Trustees and is available without charge upon request by calling 1-800-225-2606. - ------------------------------------------------------------------------------------------------------ INVESTMENT ADVISER CUSTODIAN Massachusetts Financial Services Company State Street Bank and Trust Company 500 Boylston Street, Boston, MA 225 Franklin Street, Boston, MA 02110 02116-3741 INDEPENDENT REGISTERED PUBLIC DISTRIBUTOR ACCOUNTING FIRM MFS Fund Distributors, Inc. Ernst & Young LLP 500 Boylston Street, Boston, MA 200 Clarendon Street, Boston, MA 02116 02116-3741 PORTFOLIO MANAGER S. Irfan Ali BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT The Investment Company Act of 1940 requires that both the full Board of Trustees and a majority of the non-interested ("independent") Trustees, voting separately, annually approve the continuation of the Fund's investment advisory agreement with MFS. The Trustees consider matters bearing on the Fund and its advisory arrangements at their meetings throughout the year, including a review of performance data at each regular meeting. In addition, the independent Trustees met several times over the course of three months beginning in May and ending in July, 2005 ("contract review meetings") for the specific purpose of considering whether to approve the continuation of the investment advisory agreement for the Fund and the other investment companies that the Board oversees (the "MFS Funds"). The independent Trustees were assisted in their evaluation of the Fund's investment advisory agreement by independent legal counsel, from whom they received separate legal advice and with whom they met separately from MFS during various contract review meetings. The independent Trustees were also assisted in this process by the MFS Funds' Independent Chief Compliance Officer, a full-time senior officer appointed by and reporting to the independent Trustees. In connection with their deliberations regarding the continuation of the investment advisory agreement, the Trustees, including the independent Trustees, considered such information and factors as they believed, in light of the legal advice furnished to them and their own business judgment, to be relevant. The investment advisory agreement for the Fund was considered separately, although the Trustees also took into account the common interests of all MFS Funds in their review. As described below, the Trustees considered the nature, quality, and extent of the various investment advisory, administrative, and shareholder services performed by MFS under the existing investment advisory agreement and other arrangements with the Fund. In connection with their contract review meetings, the Trustees received and relied upon materials which included, among other items: (i) information provided by Lipper Inc. on the investment performance of the Fund for various time periods ended December 31, 2004 and the investment performance of a group of funds with substantially similar investment classifications/objectives (the "Lipper performance universe"), as well as the investment performance of a group of funds identified by objective criteria suggested by MFS ("peer funds"), (ii) information provided by Lipper Inc. on the Fund's advisory fees and other expenses and the advisory fees and other expenses of comparable funds identified by Lipper (the "Lipper expense group"), as well as the advisory fees and other expenses of peer funds identified by objective criteria suggested by MFS, (iii) information provided by MFS on the advisory fees of comparable portfolios of other clients of MFS, including institutional separate account and other clients, (iv) information as to whether and to what extent applicable expense waivers, reimbursements or fee "breakpoints" are observed for the Fund, (v) information regarding MFS' financial results and financial condition, including MFS' and certain of its affiliates' estimated profitability from services performed for the Fund and the MFS Funds as a whole, (vi) MFS' views regarding the outlook for the mutual fund industry and the strategic business plans of MFS, (vii) descriptions of various functions performed by MFS for the Funds, such as compliance monitoring and portfolio trading practices, and (viii) information regarding the overall organization of MFS, including information about MFS' senior management and other personnel providing investment advisory, administrative and other services to the Fund and the other MFS Funds. The comparative performance, fee and expense information prepared and provided by Lipper Inc. was not independently verified and the independent Trustees did not independently verify any information provided to them by MFS. The Trustees' conclusion as to the continuation of the investment advisory agreement was based on a comprehensive consideration of all information provided to the Trustees and not the result of any single factor. Some of the factors that figured particularly in the Trustees' deliberations are described below, although individual Trustees may have evaluated the information presented differently from one another, giving different weights to various factors. It is also important to recognize that the fee arrangements for the Fund and other MFS Funds are the result of years of review and discussion between the independent Trustees and MFS, that certain aspects of such arrangements may receive greater scrutiny in some years than others, and that the Trustees' conclusions may be based, in part, on their consideration of these same arrangements during the course of the year and in prior years. Based on information provided by Lipper Inc. and MFS, the Trustees reviewed the Fund's total return investment performance as well as the performance of peer groups of funds over various time periods. The Trustees placed particular emphasis on the total return performance of the Fund's Class A shares in comparison to the performance of funds in its Lipper performance universe over the three-year period ended December 31, 2004, which the Trustees believed was a long enough period to reflect differing market conditions. The Fund's performance was in the 61st percentile relative to the other funds in the universe for this three-year period (the 1st percentile being the best performers and the 100th percentile being the worst performers). The total return performance of the Fund's Class A shares was in the 56th percentile for the one-year period and the 58th percentile for the five-year period ended December 31, 2004 relative to the Lipper performance universe. Because of the passage of time, these performance results are likely to differ from the performance results for more recent periods, including those shown elsewhere in this report. In the course of their deliberations, the Trustees took into account information provided by MFS in connection with the contract review meetings, as well as during investment review meetings conducted with portfolio management personnel during the course of the year, as to MFS' efforts to improve the Fund's performance. After reviewing these and related factors, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that they were satisfied with MFS' responses and efforts relating to investment performance. In assessing the reasonableness of the Fund's advisory fee, the Trustees considered, among other information, the Fund's advisory fee and the total expense ratio of the Fund's Class A shares as a percentage of average net assets and the advisory fee and total expense ratios of peer groups of funds based on information provided by Lipper Inc. and MFS. The Trustees considered whether the Fund was subject to any fee waivers or reductions or expense limitations. The Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate and total expense ratio were each approximately at the Lipper expense group median. The Trustees also considered the advisory fees charged by MFS to institutional accounts. In comparing these fees, the Trustees considered information provided by MFS as to the generally broader scope of services provided by MFS to the Fund in comparison to institutional accounts, the higher demands placed on MFS' investment personnel and trading infrastructure as a result of the daily cash in-flows and out-flows of the Fund, and the impact on MFS and expenses associated with the more extensive regulatory regime to which the Fund is subject in comparison to institutional accounts. The Trustees also considered whether the Fund is likely to benefit from any economies of scale in the management of the Fund in the event of growth in assets of the Fund. They noted that the Fund's advisory fee rate schedule is not currently subject to any breakpoints. Taking into account fee waivers or reductions or expense limitations, if any, the Trustees determined not to recommend any advisory fee breakpoints for the Fund at this time. The Trustees also considered information prepared by MFS relating to MFS' costs and profits with respect to the Fund, the MFS Funds considered as a group, and other investment companies and accounts advised by MFS, as well as MFS' methodologies used to determine and allocate its costs to the MFS Funds, the Fund and other accounts and products for purposes of estimating profitability. After reviewing these and other factors described herein, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that the advisory fees charged to the Fund represent reasonable compensation in light of the nature and quality of the services being provided by MFS to the Fund. In addition, the Trustees considered MFS' resources and related efforts to continue to retain, attract and motivate capable personnel to serve the Fund. The Trustees also considered current and developing conditions in the financial services industry, including the entry into the industry of large and well-capitalized companies which are spending, and appear to be prepared to continue to spend, substantial sums to engage personnel and to provide services to competing investment companies. In this regard, the Trustees also considered the financial resources of MFS and its ultimate parent, Sun Life Financial Inc. The Trustees also considered the advantages and possible disadvantages to the Fund of having an adviser which also serves other investment companies as well as other accounts. The Trustees also considered the nature, quality, cost, and extent of administrative, transfer agency, and distribution services provided to the Fund by MFS and its affiliates under agreements and plans other than the investment advisory agreement, including any 12b-1 fees the Fund pays to MFS Fund Distributors, Inc., an affiliate of MFS. The Trustees also considered the nature, extent and quality of certain other services MFS performs or arranges for on the Fund's behalf, including securities lending programs, directed expense payment programs, class action recovery programs, and MFS' interaction with third-party service providers, principally custodians and sub-custodians. The Trustees concluded that the various non-advisory services provided by MFS and its affiliates on behalf of the Funds were satisfactory. The Trustees also considered benefits to MFS from the use of the Fund's portfolio brokerage commissions to pay for research and other similar services (including MFS' general policy to pay directly for third-party research), and various other factors. Additionally, the Trustees considered so-called "fall- out benefits" to MFS such as reputational value derived from serving as investment manager to the Fund. Based on their evaluation of factors that they deemed to be material, including those factors described above, the Board of Trustees, including a majority of the independent Trustees, concluded that the Fund's investment advisory agreement with MFS should be continued for an additional one-year period, commencing August 1, 2005. A discussion regarding the Board's most recent review and renewal of the Fund's investment advisory agreement will be available on or before December 1, 2005 by clicking on the fund's name under "Select a fund" on the MFS website (mfs.com). PROXY VOTING POLICIES AND INFORMATION A general description of the MFS funds' proxy voting policies and procedures is available without charge, upon request, by calling 1-800-225-2606, by visiting the Proxy Voting section of mfs.com or by visiting the SEC's Web site at http://www.sec.gov. Information regarding how the fund voted proxies relating to portfolio securities during the most recent twelve-month period ended June 30 is available without charge by visiting the Proxy Voting section of mfs.com or by visiting the SEC's Web site at http://www.sec.gov. QUARTERLY PORTFOLIO DISCLOSURE The fund will file a complete schedule of portfolio holdings with the Securities and Exchange Commission (the Commission) for the first and third quarters of each fiscal year on Form N-Q. The fund's Form N-Q may be reviewed and copied at the: Public Reference Room Securities and Exchange Commission Washington, D.C. 20549-0102 Information on the operation of the Public Reference Room may be obtained by calling the Commission at 1-800-SEC-0330. The fund's Form N-Q is available on the EDGAR database on the Commission's Internet website at http://www.sec.gov, and copies of this information may be obtained, upon payment of a duplicating fee, by electronic request at the following e-mail address: publicinfo@sec.gov or by writing the Public Reference Section at the above address. A shareholder can also obtain the quarterly portfolio holdings report at mfs.com. FEDERAL TAX INFORMATION (unaudited) In January 2006, shareholders will be mailed a Form 1099-DIV reporting the federal tax status of all distributions paid during the calendar year 2005. CONTACT INFORMATION INVESTOR SERVICE Write to us at: MFS Service Center, Inc. P.O. Box 55824 Boston, MA 02205-5824 Type of Information Phone number Hours, Eastern Time - -------------------------------------------------------------------------------- General information 1-800-225-2606 8 a.m. to 8 p.m., any business day - -------------------------------------------------------------------------------- Speech- or hearing-impaired 1-800-637-6576 9 a.m. to 5 p.m., any business day - -------------------------------------------------------------------------------- Share prices, account 1-800-MFS-TALK balances exchanges (1-800-637-8255) 24 hours a day, 365 days a or stock and bond outlooks touch-tone required year - -------------------------------------------------------------------------------- M F S(SM) INVESTMENT MANAGEMENT(R) (C) 2005 MFS Investment Management(R) MFS(R) investment products are offered through MFS Fund Distributors, Inc., 500 Boylston Street, Boston, MA 02116. AGF-ANN-10/05 158M MFS(R) CORE EQUITY FUND 8/31/05 ANNUAL REPORT - ------------------------------------------------------------------------------- LETTER FROM THE CEO 1 - --------------------------------------------------- PORTFOLIO COMPOSITION 2 - --------------------------------------------------- MANAGEMENT REVIEW 3 - --------------------------------------------------- PERFORMANCE SUMMARY 5 - --------------------------------------------------- EXPENSE TABLE 8 - --------------------------------------------------- PORTFOLIO OF INVESTMENTS 10 - --------------------------------------------------- FINANCIAL STATEMENTS 17 - --------------------------------------------------- NOTES TO FINANCIAL STATEMENTS 27 - --------------------------------------------------- REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 36 - --------------------------------------------------- RESULTS OF SHAREHOLDER MEETING 37 - --------------------------------------------------- TRUSTEES AND OFFICERS 38 - --------------------------------------------------- BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT 43 - --------------------------------------------------- PROXY VOTING POLICIES AND INFORMATION 47 - --------------------------------------------------- QUARTERLY PORTFOLIO DISCLOSURE 47 - --------------------------------------------------- FEDERAL TAX INFORMATION 47 - --------------------------------------------------- CONTACT INFORMATION BACK COVER - --------------------------------------------------- THIS REPORT HAS BEEN PREPARED FOR THE GENERAL INFORMATION TO SHAREHOLDERS. IT IS AUTHORIZED FOR DISTRIBUTION TO PROSPECTIVE INVESTORS ONLY WHEN PRECEDED OR ACCOMPANIED BY A CURRENT PROSPECTUS. [logo] M F S(SM) INVESTMENT MANAGEMENT(R) LETTER FROM THE CEO [Photo of Robert J. Manning] Dear Shareholders, Most investors are familiar with the basic principles of investing - focus on the long term and keep your assets diversified across different investment categories. Still, it is surprising how often we forget these basic lessons. Certainly, the dot-com euphoria that overtook Wall Street in the late 1990s had many people hoping they could become millionaires overnight. But the market decline that started in the spring of 2000 taught everyone how misguided those hopes had been. Now, less than five years after the market taught a harsh lesson in the follies of speculative investing, we are seeing a number of trends that suggest many investors, including professionals, are hoping for overnight miracles again. We see a steady stream of market "gurus" on television news shows, promising to teach amateur investors the strategies that will allow them to get rich quick. Hedge funds - which by their nature move in and out of investments rapidly - have soared in popularity over the past five years. We are reminded every day that we live in a "what have you done for me lately?" world, but this mindset should not influence how we invest and manage our money. In fact, investors often fall short of their goals because they trade in and out of investments too frequently and at inopportune times. Throughout our entire 80-year history, MFS' money management process has focused on long-term investment opportunities. We firmly believe that one of the best ways to realize long-term financial goals - be it a college education, a comfortable retirement, or a secure family legacy - is to follow a three-pronged approach that focuses on longer time horizons. Allocate holdings across the major asset classes - including stocks, bonds, and cash. Diversify within each class to take advantage of different market segments and investing styles. And rebalance assets regularly to maintain a desired asset allocation.* This long-term approach requires diligence and patience, two traits that in our experience are essential to capitalizing on the many opportunities the financial markets can offer. Respectfully, /s/ Robert J. Manning Robert J. Manning Chief Executive Officer and Chief Investment Officer MFS Investment Management(R) October 17, 2005 * Asset allocation, diversification, and rebalancing does not guarantee a profit or protect against a loss. The opinions expressed in this letter are those of MFS, and no forecasts can be guaranteed. PORTFOLIO COMPOSITION PORTFOLIO STRUCTURE Stocks 98.6% Cash & Other Net Assets 1.4% TOP TEN HOLDINGS General Electric Co. 3.2% ------------------------------------------------ Bank of America Corp. 2.8% ------------------------------------------------ TOTAL S.A., ADR 2.7% ------------------------------------------------ Exxon Mobil Corp. 2.5% ------------------------------------------------ Wyeth 2.3% ------------------------------------------------ Altria Group, Inc. 2.3% ------------------------------------------------ PepsiCo, Inc. 1.9% ------------------------------------------------ Dell, Inc. 1.8% ------------------------------------------------ SLM Corp. 1.7% ------------------------------------------------ Sprint Nextel Corp. 1.6% ------------------------------------------------ EQUITY SECTORS Financial Services 19.1% ------------------------------------------------ Technology 13.9% ------------------------------------------------ Health Care 13.8% ------------------------------------------------ Energy 9.4% ------------------------------------------------ Consumer Staples 7.5% ------------------------------------------------ Industrial Goods & Services 7.2% ------------------------------------------------ Utilities & Communications 7.1% ------------------------------------------------ Retailing 6.0% ------------------------------------------------ Leisure 5.5% ------------------------------------------------ Basic Materials 4.3% ------------------------------------------------ Special Products & Services 2.1% ------------------------------------------------ Transportation 1.6% ------------------------------------------------ Autos & Housing 1.1% ------------------------------------------------ Percentages are based on net assets as of 8/31/05. The portfolio is actively managed, and current holdings may be different. MANAGEMENT REVIEW SUMMARY OF RESULTS For the twelve months ended August 31, 2005, Class A shares of the MFS Core Equity Fund had a total return of 16.48%, at net asset value. In comparison, the fund's benchmark, the Standard & Poor's 500 Stock Index, returned 12.55%. CONTRIBUTORS TO PERFORMANCE Overall favorable stock selection was the primary contributor to relative performance over the reporting period. At the sector level, security selection in the health care, basic materials, and utilities and communications sectors contributed to the fund's strong relative performance. Within health care, our avoidance of benchmark constituents Pfizer and Merck aided performance, as both stocks declined significantly over the period. In the basic materials sector, several portfolio holdings appreciated considerably including agrichemical products manufacturer Monsanto and iron ore miner Companhia Vale do Rio Doce. Although security selection in the utilities and communications sector was also an area of relative strength, no individual names were among the fund's top relative performers. Other stocks that made a significant positive impact on relative results included business software firm MicroStrategy, computer and electronics company Apple, investment management firm Legg Mason, integrated energy company TOTAL, and retail giant Wal-Mart. DETRACTORS FROM PERFORMANCE Although several technology holdings were among the fund's top relative contributors, security selection in this sector overall was an area of relative weakness. Within the technology sector, our holdings of business to business and e-commerce software vendor Ariba, printer manufacturer Lexmark*, electronics manufacturing company Solectron, and Internet software firm SupportSoft* were among the fund's top detractors. Not fully participating in the strong performance of computer company Hewlett-Packard* was a drag on relative performance. Additionally, not owning benchmark constituent Texas Instruments hurt results as the stock had strong gains for the period. Although no individual stocks in the leisure sector were among the fund's top detractors, security selection in this sector hurt relative performance. In other sectors, our holdings in mortgage finance company Freddie Mac* and retailer Family Dollar Stores, and not owning strong-performing benchmark constituent UnitedHealth Group detracted from relative results. The fund's cash position was also a detractor from relative performance. As with nearly all mutual funds, this portfolio holds cash to buy new holdings and to provide liquidity. In a period when equity markets rose as measured by the fund's benchmark, holding cash hurt performance versus the fund's benchmark, which has no cash position. Respectfully, Katrina Mead Portfolio Manager * Security was not held in the portfolio at period-end. The fund is managed by a team of MFS(R) equity research analysts, under the general supervision of Ms. Mead. The views expressed in this report are those of the portfolio manager only through the end of the period of the report as stated on the cover and do not necessarily reflect the views of MFS or any other person in the MFS organization. These views are subject to change at any time based on market and other conditions, and MFS disclaims any responsibility to update such views. These views may not be relied upon as investment advice or an indication of trading intent on behalf of any MFS Fund. References to specific securities are not recommendations of such securities, and may not be representative of any MFS Fund's current or future investments. PERFORMANCE SUMMARY THROUGH 8/31/05 The following chart illustrates the historical performance of the fund's original share class in comparison to its benchmark. Performance results include the deduction of the maximum applicable sales charge and reflect the percentage change in net asset value, including reinvestment of dividends and capital gains distributions. Benchmark comparisons are unmanaged and do not reflect any fees or expenses. The performance of other share classes will be greater than or less than the line shown. (See Notes to Performance Summary.) VISIT MFS.COM FOR THE MOST RECENT MONTH-END PERFORMANCE RESULTS. (FOR THE MOST RECENT MONTH-END PERFORMANCE FOR CLASS I SHARES CALL 1-888-808-6374.) MARKET VOLATILITY CAN SIGNIFICANTLY AFFECT SHORT-TERM PERFORMANCE, AND CURRENT PERFORMANCE MAY BE LOWER OR HIGHER THAN THE PERFORMANCE DATA QUOTED. THE PERFORMANCE DATA QUOTED REPRESENTS PAST PERFORMANCE, WHICH IS NO GUARANTEE OF FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE WILL FLUCTUATE, AND SHARES, WHEN REDEEMED, MAY BE WORTH MORE OR LESS THAN THEIR ORIGINAL COST. HIGH SHORT-TERM RETURNS FOR ANY PERIOD MAY BE AND LIKELY WERE ATTRIBUTABLE TO FAVORABLE MARKET CONDITIONS DURING THAT PERIOD, WHICH MAY NOT BE REPEATABLE. THE PERFORMANCE SHOWN DOES NOT REFLECT THE DEDUCTION OF TAXES, IF ANY, THAT A SHAREHOLDER WOULD PAY ON FUND DISTRIBUTIONS OR THE REDEMPTION OF FUND SHARES. GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT (For the period from the commencement of the fund's investment operations, January 2, 1996, through August 31, 2005. Index information is from January 1, 1996.) MFS Core Equity Standard & Poor's Fund -- Class A 500 Stock Index 1/96 $ 9,425 $10,000 8/96 10,490 10,745 8/97 14,290 15,110 8/98 15,194 16,334 8/99 19,546 22,837 8/00 22,235 26,564 8/01 17,899 20,089 8/02 15,036 16,475 8/03 16,790 18,462 8/04 18,449 20,575 8/05 21,490 23,158 TOTAL RATES OF RETURN THROUGH 8/31/05 AVERAGE ANNUAL WITHOUT SALES CHARGE Class inception Share class date 1-yr 5-yr Life* - ------------------------------------------------------------------------------ A 1/02/96 16.48% -0.68% 8.90% - ------------------------------------------------------------------------------ B 1/02/97 15.77% -1.32% 8.20% - ------------------------------------------------------------------------------ C 1/02/97 15.76% -1.32% 8.18% - ------------------------------------------------------------------------------ I 1/02/97 16.90% -0.33% 9.24% - ------------------------------------------------------------------------------ R** 12/31/02 16.26% -0.77% 8.85% - ------------------------------------------------------------------------------ R1 4/01/05 16.07% -0.75% 8.86% - ------------------------------------------------------------------------------ R2 4/01/05 16.20% -0.73% 8.88% - ------------------------------------------------------------------------------ R3** 10/31/03 16.02% -0.81% 8.83% - ------------------------------------------------------------------------------ R4 4/01/05 16.48% -0.68% 8.90% - ------------------------------------------------------------------------------ R5 4/01/05 16.61% -0.66% 8.92% - ------------------------------------------------------------------------------ AVERAGE ANNUAL Comparative benchmarks - ------------------------------------------------------------------------------ Average multi-cap core fund+ 16.06% -0.85% 8.96% - ------------------------------------------------------------------------------ Standard & Poor's 500 Stock Index# 12.55% -2.71% 9.08% - ------------------------------------------------------------------------------ AVERAGE ANNUAL WITH SALES CHARGE Share class - ------------------------------------------------------------------------------ A 9.78% -1.85% 8.24% - ------------------------------------------------------------------------------ B 11.77% -1.71% 8.20% - ------------------------------------------------------------------------------ C 14.76% -1.32% 8.18% - ------------------------------------------------------------------------------ Class I, R, R1, R2, R3, R4, and R5 shares do not have a sales charge. Please see Notes to Performance Summary for more details. * For the period from the commencement of the fund's investment operations, January 2, 1996, through August 31, 2005. Index information is from January 1, 1996. ** Effective April 1, 2005, Class R1 shares have been renamed "Class R shares" and Class R2 shares have been renamed "Class R3 shares." + Source: Lipper Inc., an independent firm that reports mutual fund performance. # Source: Standard & Poor's Micropal, Inc. INDEX DEFINITION Standard & Poor's 500 Stock Index (the S&P 500) - is a capitalization-weighted index of 500 widely held equity securities, designed to measure broad U.S. equity performance. It is not possible to invest directly in an index. NOTES TO PERFORMANCE SUMMARY Class A results including sales charge reflect the deduction of the maximum 5.75% sales charge. Class B results including sales charge reflect the deduction of the applicable contingent deferred sales charge (CDSC), which declines over six years from 4% to 0%. Class C results including sales charge (assuming redemption within one year from the end of the prior month of purchase) reflect the deduction of the 1% CDSC. Class R shares have no initial sales charge or CDSC and are available only to existing Class R shareholders. Class I, R1, R2, R3, R4, and R5 shares have no initial sales charge or CDSC. Class I shares are only available to certain eligible investors, and Class R1, R2, R3, R4, and R5 shares are only available to certain retirement plans. Performance for share classes offered after Class A shares includes the performance of the fund's Class A shares for periods prior to their offering. This blended class performance has been adjusted to take into account differences in sales loads, if any, applicable to these share classes, but has not been adjusted to take into account differences in class specific operating expenses (such as Rule 12b-1 fees). Compared to performance these share classes would have experienced had they been offered for the entire period, the use of blended performance generally results in higher performance for share classes with higher operating expenses than the share class to which it is blended, and lower performance for share classes with lower operating expenses than the share class to which it is blended. Performance results reflect any applicable expense subsidies and waivers in effect during the periods shown. Without such subsidies and waivers the fund's performance results would be less favorable. Please see the prospectus and financial statements for complete details. The performance shown reflects a non-recurring accrual made to the fund on July 28, 2004, relating to MFS' revenue sharing settlement with the Securities and Exchange Commission, without which the performance would have been lower. The proceeds were paid to the fund on February 16, 2005. From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. EXPENSE TABLE FUND EXPENSES BORNE BY THE SHAREHOLDERS DURING THE PERIOD, MARCH 1, 2005 THROUGH AUGUST 31, 2005. As a shareholder of the fund, you incur two types of costs: (1) transaction costs, including sales charges (loads) on certain purchase or redemption payments and redemption fees on certain exchanges and redemptions, and (2) ongoing costs, including management fees; distribution and service (12b-1) fees; and other fund expenses. This example is intended to help you understand your ongoing costs (in dollars) of investing in the fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 invested at the beginning of the period and held for the entire period March 1, 2005 through August 31, 2005. ACTUAL EXPENSES The first line for each share class in the table below provides information about actual account values and actual expenses. You may use the information in this line, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading entitled "Expenses Paid During Period" to estimate the expenses you paid on your account during this period. HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES The second line for each share class in the table below provides information about hypothetical account values and hypothetical expenses based on the fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as sales charges (loads) or redemption fees. Therefore, the second line for each share class in the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher. - -------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period** Expense Account Value Account Value 3/01/05- Share Class Ratio 3/01/05 8/31/05 8/31/05 - -------------------------------------------------------------------------------- Actual 1.39% $1,000.00 $1,029.40 $7.11 A --------------------------------------------------------------------- Hypothetical* 1.39% $1,000.00 $1,018.20 $7.07 - -------------------------------------------------------------------------------- Actual 2.03% $1,000.00 $1,026.50 $10.37 B ---------------------------------------------------------------------- Hypothetical* 2.03% $1,000.00 $1,014.97 $10.31 - -------------------------------------------------------------------------------- Actual 2.03% $1,000.00 $1,026.60 $10.37 C --------------------------------------------------------------------- Hypothetical* 2.03% $1,000.00 $1,014.97 $10.31 - -------------------------------------------------------------------------------- Actual 1.08% $1,000.00 $1,031.50 $5.53 I --------------------------------------------------------------------- Hypothetical* 1.08% $1,000.00 $1,019.76 $5.50 - -------------------------------------------------------------------------------- R Actual 1.54% $1,000.00 $1,028.90 $7.88 (formerly --------------------------------------------------------------------- R1) Hypothetical* 1.54% $1,000.00 $1,017.44 $7.83 - -------------------------------------------------------------------------------- Actual 2.24% $1,000.00 $1,025.70 $11.44 R1 --------------------------------------------------------------------- Hypothetical* 2.24% $1,000.00 $1,013.91 $11.37 - -------------------------------------------------------------------------------- Actual 1.94% $1,000.00 $1,026.90 $9.91 R2 --------------------------------------------------------------------- Hypothetical* 1.94% $1,000.00 $1,015.43 $9.86 - -------------------------------------------------------------------------------- R3 Actual 1.79% $1,000.00 $1,027.80 $9.15 (formerly --------------------------------------------------------------------- R2) Hypothetical* 1.79% $1,000.00 $1,016.18 $9.10 - -------------------------------------------------------------------------------- Actual 1.44% $1,000.00 $1,029.40 $7.37 R4 --------------------------------------------------------------------- Hypothetical* 1.44% $1,000.00 $1,017.95 $7.32 - -------------------------------------------------------------------------------- Actual 1.14% $1,000.00 $1,030.50 $5.83 R5 --------------------------------------------------------------------- Hypothetical* 1.14% $1,000.00 $1,019.46 $5.80 - -------------------------------------------------------------------------------- * 5% class return per year before expenses. ** Expenses paid is equal to each class' annualized expense ratio, as shown above, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year. Expenses paid do not include any applicable sales charges (loads) or redemption fees. If these transaction costs had been included, your costs would have been higher. PORTFOLIO OF INVESTMENTS - 8/31/05 The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Stocks - 98.6% - --------------------------------------------------------------------------------------------------- ISSUER SHARES $ VALUE - --------------------------------------------------------------------------------------------------- Aerospace - 2.5% - --------------------------------------------------------------------------------------------------- ITT Industries, Inc. 11,500 $ 1,254,880 KVH Industries, Inc.^* 51,070 520,403 Lockheed Martin Corp. 23,980 1,492,515 United Technologies Corp. 57,190 2,859,500 -------------- $ 6,127,298 - --------------------------------------------------------------------------------------------------- Apparel Manufacturers - 0.6% - --------------------------------------------------------------------------------------------------- Columbia Sportswear Co.^* 30,820 $ 1,430,048 - -------------------------------------------------------------------------------------------------- Automotive - 0.7% - --------------------------------------------------------------------------------------------------- Harley-Davidson, Inc.^ 15,600 $ 768,456 Magna International, Inc., "A"^ 11,910 874,909 -------------- $ 1,643,365 - --------------------------------------------------------------------------------------------------- Banks & Credit Companies - 11.5% - --------------------------------------------------------------------------------------------------- Bank of America Corp. 158,014 $ 6,799,342 Countrywide Financial Corp. 103,420 3,494,562 J.P. Morgan Chase & Co. 98,100 3,324,609 North Fork Bancorporation, Inc.^ 118,670 3,262,238 PNC Financial Services Group, Inc. 43,580 2,450,503 SLM Corp. 84,190 4,188,453 SunTrust Banks, Inc. 31,660 2,225,065 U.S. Bancorp 6,000 175,320 Washington Mutual, Inc. 42,530 1,768,397 -------------- $ 27,688,489 - --------------------------------------------------------------------------------------------------- Biotechnology - 1.8% - --------------------------------------------------------------------------------------------------- Amgen, Inc.* 17,310 $ 1,383,069 Gilead Sciences, Inc.* 25,270 1,086,610 MedImmune, Inc.* 31,470 941,897 Neurochem, Inc.* 75,720 863,208 -------------- $ 4,274,784 - --------------------------------------------------------------------------------------------------- Broadcast & Cable TV - 3.5% - --------------------------------------------------------------------------------------------------- Comcast Corp., "A"^* 17,640 $ 542,430 Interpublic Group of Cos., Inc.* 143,630 1,742,232 R.H. Donnelley Corp.* 24,690 1,587,320 Viacom, Inc., "B" 52,380 1,780,396 Walt Disney Co. 110,110 2,773,671 -------------- $ 8,426,049 - --------------------------------------------------------------------------------------------------- Brokerage & Asset Managers - 2.4% - --------------------------------------------------------------------------------------------------- Affiliated Managers Group, Inc.^* 7,130 $ 517,709 Franklin Resources, Inc. 5,010 403,004 Goldman Sachs Group, Inc. 17,670 1,964,551 Legg Mason, Inc. 16,200 1,693,386 MarketAxess Holdings, Inc.^* 92,640 1,036,642 Mellon Financial Corp. 1,670 54,192 -------------- $ 5,669,484 - --------------------------------------------------------------------------------------------------- Business Services - 1.8% - --------------------------------------------------------------------------------------------------- Accenture Ltd., "A"* 98,450 $ 2,402,180 Getty Images, Inc.* 6,700 573,453 Hewitt Associates, Inc., "A"^* 14,200 411,800 SIRVA, Inc.^* 104,070 1,050,066 -------------- $ 4,437,499 - --------------------------------------------------------------------------------------------------- Chemicals - 1.8% - --------------------------------------------------------------------------------------------------- E.I. du Pont de Nemours & Co. 33,600 $ 1,329,552 Monsanto Co. 45,410 2,898,974 -------------- $ 4,228,526 - --------------------------------------------------------------------------------------------------- Computer Software - 3.3% - --------------------------------------------------------------------------------------------------- MicroStrategy, Inc., "A"^* 31,970 $ 2,461,690 Opsware, Inc.* 104,900 484,638 Oracle Corp.* 169,280 2,195,562 Symantec Corp.* 73,310 1,538,044 TIBCO Software, Inc.^* 155,170 1,185,499 -------------- $ 7,865,433 - --------------------------------------------------------------------------------------------------- Computer Software - Systems - 2.2% - --------------------------------------------------------------------------------------------------- Apple Computer, Inc.* 17,430 $ 817,990 Dell, Inc.* 123,150 4,384,140 -------------- $ 5,202,130 - --------------------------------------------------------------------------------------------------- Construction - 0.4% - --------------------------------------------------------------------------------------------------- Masco Corp. 34,170 $ 1,048,336 - -------------------------------------------------------------------------------------------------- Consumer Goods & Services - 2.8% - --------------------------------------------------------------------------------------------------- Career Education Corp.* 18,700 $ 733,040 Gillette Co. 46,470 2,503,339 Procter & Gamble Co. 61,890 3,433,657 -------------- $ 6,670,036 - --------------------------------------------------------------------------------------------------- Electrical Equipment - 3.8% - --------------------------------------------------------------------------------------------------- American Standard Cos., Inc. 13,060 $ 595,536 General Electric Co. 232,540 7,815,669 Tyco International Ltd. 27,830 774,509 -------------- $ 9,185,714 - --------------------------------------------------------------------------------------------------- Electronics - 2.7% - --------------------------------------------------------------------------------------------------- Analog Devices, Inc. 52,520 $ 1,914,354 FormFactor, Inc.^* 23,390 635,506 KLA-Tencor Corp. 12,810 650,236 Marvell Technology Group Ltd.* 13,100 618,189 PMC-Sierra, Inc.^* 87,630 743,102 Xilinx, Inc. 70,170 1,971,075 -------------- $ 6,532,462 - --------------------------------------------------------------------------------------------------- Energy - Independent - 1.2% - --------------------------------------------------------------------------------------------------- Devon Energy Corp. 20,540 $ 1,248,216 EOG Resources, Inc. 8,680 554,044 Noble Energy, Inc.^ 12,780 1,126,429 -------------- $ 2,928,689 - --------------------------------------------------------------------------------------------------- Energy - Integrated - 6.6% - --------------------------------------------------------------------------------------------------- ConocoPhillips 48,640 $ 3,207,322 Exxon Mobil Corp. 101,382 6,072,782 TOTAL S.A., ADR 49,630 6,543,219 -------------- $ 15,823,323 - --------------------------------------------------------------------------------------------------- Food & Drug Stores - 1.0% - --------------------------------------------------------------------------------------------------- CVS Corp. 58,650 $ 1,722,551 Kroger Co.* 31,040 612,730 -------------- $ 2,335,281 - --------------------------------------------------------------------------------------------------- Food & Non-Alcoholic Beverages - 2.7% - --------------------------------------------------------------------------------------------------- Coca-Cola Co. 44,920 $ 1,976,480 Diamond Foods, Inc.^* 1,630 32,649 PepsiCo, Inc. 83,839 4,598,569 -------------- $ 6,607,698 - --------------------------------------------------------------------------------------------------- Forest & Paper Products - 0.5% - --------------------------------------------------------------------------------------------------- Abitibi-Consolidated, Inc. 287,060 $ 1,245,840 - -------------------------------------------------------------------------------------------------- Gaming & Lodging - 0.9% - --------------------------------------------------------------------------------------------------- Carnival Corp. 18,330 $ 904,402 Harrah's Entertainment, Inc. 4,450 309,542 WMS Industries, Inc.^* 29,890 865,614 -------------- $ 2,079,558 - --------------------------------------------------------------------------------------------------- General Merchandise - 4.0% - --------------------------------------------------------------------------------------------------- Family Dollar Stores, Inc. 56,540 $ 1,124,015 Kohl's Corp.* 64,760 3,396,662 Target Corp. 55,870 3,003,013 Wal-Mart Stores, Inc. 47,110 2,118,066 -------------- $ 9,641,756 - --------------------------------------------------------------------------------------------------- Health Maintenance Organizations - 0.7% - --------------------------------------------------------------------------------------------------- CIGNA Corp. 15,650 $ 1,804,758 - -------------------------------------------------------------------------------------------------- Insurance - 4.4% - --------------------------------------------------------------------------------------------------- Ace Ltd. 30,180 $ 1,340,294 American International Group, Inc. 53,980 3,195,616 Conseco, Inc.^* 29,510 616,169 Genworth Financial, Inc., "A" 46,310 1,489,793 Hartford Financial Services Group, Inc. 13,960 1,019,778 MetLife, Inc. 30,080 1,473,318 Prudential Financial, Inc. 23,380 1,504,971 -------------- $ 10,639,939 - --------------------------------------------------------------------------------------------------- Internet - 1.1% - --------------------------------------------------------------------------------------------------- Ariba, Inc.^* 147,810 $ 877,991 Yahoo!, Inc.* 53,580 1,786,357 -------------- $ 2,664,348 - --------------------------------------------------------------------------------------------------- Leisure & Toys - 0.3% - --------------------------------------------------------------------------------------------------- Electronic Arts, Inc.* 4,160 $ 238,285 Hasbro, Inc.^ 8,570 177,399 Mattel, Inc. 10,640 191,839 -------------- $ 607,523 - --------------------------------------------------------------------------------------------------- Machinery & Tools - 0.7% - --------------------------------------------------------------------------------------------------- Caterpillar, Inc. 15,610 $ 866,199 Illinois Tool Works, Inc. 10,950 922,866 -------------- $ 1,789,065 - --------------------------------------------------------------------------------------------------- Medical & Health Technology & Services - 2.2% - --------------------------------------------------------------------------------------------------- Allion Healthcare, Inc.* 22,110 $ 398,201 Allscripts Healthcare Solutions, Inc.^* 26,980 479,704 Cerner Corp.^* 4,630 364,659 Emageon, Inc.^* 9,090 119,534 LifePoint Hospitals, Inc.* 32,420 1,474,462 Omnicell, Inc.^* 15,200 137,560 Tenet Healthcare Corp.* 153,630 1,871,213 TriZetto Group, Inc.^* 22,640 355,222 -------------- $ 5,200,555 - --------------------------------------------------------------------------------------------------- Medical Equipment - 2.3% - --------------------------------------------------------------------------------------------------- Aspect Medical Systems, Inc.^* 11,620 $ 352,783 C.R. Bard, Inc. 21,310 1,370,872 St. Jude Medical, Inc.* 23,850 1,094,715 Varian Medical Systems, Inc.* 31,910 1,270,656 Zimmer Holdings, Inc.* 18,750 1,540,688 -------------- $ 5,629,714 - --------------------------------------------------------------------------------------------------- Metals & Mining - 0.7% - --------------------------------------------------------------------------------------------------- Aber Diamond Corp.+* 11,600 $ 393,144 Companhia Vale do Rio Doce, ADR 38,090 1,309,915 -------------- $ 1,703,059 - --------------------------------------------------------------------------------------------------- Natural Gas - Distribution - 0.5% - --------------------------------------------------------------------------------------------------- Sempra Energy 29,390 $ 1,317,260 - -------------------------------------------------------------------------------------------------- Network & Telecom - 2.8% - --------------------------------------------------------------------------------------------------- Cisco Systems, Inc.* 187,410 $ 3,302,164 Corning, Inc.* 74,460 1,486,222 QUALCOMM, Inc. 51,920 2,061,743 -------------- $ 6,850,129 - --------------------------------------------------------------------------------------------------- Oil Services - 1.6% - --------------------------------------------------------------------------------------------------- Halliburton Co. 22,690 $ 1,406,099 National Oilwell Varco, Inc.* 14,450 927,835 Noble Corp. 9,590 683,767 Transocean, Inc.* 15,350 906,264 -------------- $ 3,923,965 - --------------------------------------------------------------------------------------------------- Personal Computers & Peripherals - 1.8% - --------------------------------------------------------------------------------------------------- EMC Corp.* 166,380 $ 2,139,647 Flextronics International Ltd.^* 40,220 525,273 Network Appliance, Inc.* 41,930 995,418 Solectron Corp.* 180,330 739,353 -------------- $ 4,399,691 - --------------------------------------------------------------------------------------------------- Pharmaceuticals - 6.8% - --------------------------------------------------------------------------------------------------- Abbott Laboratories 54,400 $ 2,455,072 Allergan, Inc. 19,120 1,759,996 Eli Lilly & Co. 60,870 3,349,067 Johnson & Johnson 51,890 3,289,307 Wyeth 119,610 5,476,942 -------------- $ 16,330,384 - --------------------------------------------------------------------------------------------------- Pollution Control - 0.2% - --------------------------------------------------------------------------------------------------- Waste Management, Inc. 13,270 $ 363,996 - -------------------------------------------------------------------------------------------------- Real Estate - 0.8% - --------------------------------------------------------------------------------------------------- Boston Properties, Inc. 19,260 $ 1,370,349 HomeBanc Corp.^ 60,810 484,656 -------------- $ 1,855,005 - --------------------------------------------------------------------------------------------------- Restaurants - 0.8% - --------------------------------------------------------------------------------------------------- Outback Steakhouse, Inc. 28,830 $ 1,199,616 Rare Hospitality International, Inc.* 30,660 819,848 -------------- $ 2,019,464 - --------------------------------------------------------------------------------------------------- Specialty Chemicals - 1.3% - --------------------------------------------------------------------------------------------------- Lyondell Chemical Co. 54,130 $ 1,396,554 Praxair, Inc. 38,290 1,849,407 -------------- $ 3,245,961 - --------------------------------------------------------------------------------------------------- Specialty Stores - 0.4% - --------------------------------------------------------------------------------------------------- PETsMART, Inc. 13,560 $ 349,441 Restoration Hardware, Inc.^* 89,630 639,958 -------------- $ 989,399 - --------------------------------------------------------------------------------------------------- Telecommunications - Wireless - 0.8% - --------------------------------------------------------------------------------------------------- Vodafone Group PLC, ADR 72,306 $ 1,970,339 - -------------------------------------------------------------------------------------------------- Telephone Services - 2.4% - --------------------------------------------------------------------------------------------------- CenturyTel, Inc.^ 22,970 $ 824,623 Sprint Nextel Corp. 151,480 3,927,876 Syniverse Holdings, Inc.^* 59,030 925,000 -------------- $ 5,677,499 - --------------------------------------------------------------------------------------------------- Tobacco - 2.3% - --------------------------------------------------------------------------------------------------- Altria Group, Inc. 77,190 $ 5,457,333 - -------------------------------------------------------------------------------------------------- Trucking - 1.6% - --------------------------------------------------------------------------------------------------- CNF, Inc. 42,930 $ 2,166,677 FedEx Corp. 13,250 1,079,080 United Parcel Service, Inc., "B" 8,250 584,843 -------------- $ 3,830,600 - --------------------------------------------------------------------------------------------------- Utilities - Electric Power - 3.4% - --------------------------------------------------------------------------------------------------- CMS Energy Corp.^* 87,080 $ 1,401,988 Constellation Energy Group, Inc. 20,430 1,200,263 Exelon Corp. 22,930 1,235,698 NRG Energy, Inc.^* 21,610 864,832 PG&E Corp. 24,620 923,742 PPL Corp. 45,300 1,447,788 TXU Corp. 11,210 1,087,595 -------------- $ 8,161,906 - --------------------------------------------------------------------------------------------------- Total Stocks (Identified Cost, $216,346,440) $ 237,523,690 - --------------------------------------------------------------------------------------------------- Collateral for Securities Loaned - 7.1% - --------------------------------------------------------------------------------------------------- Navigator Securities Lending Prime Portfolio, at Cost and Net Asset Value 17,023,321 $ 17,023,321 - -------------------------------------------------------------------------------------------------- Portfolio of Investments - continued Repurchase Agreement - 1.5% - --------------------------------------------------------------------------------------------------- ISSUER PAR AMOUNT $ VALUE - --------------------------------------------------------------------------------------------------- Morgan Stanley, 3.58%, dated 8/31/05, due 9/1/05, total to be received $3,740,372 (secured by various U.S. Treasury and Federal Agency obligations in a jointly traded account), at Cost $ 3,740,000 $ 3,740,000 - --------------------------------------------------------------------------------------------------- Total Investments (Identified Cost, $237,109,761)(S) $ 258,287,011 - --------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - (7.2)% (17,274,493) - --------------------------------------------------------------------------------------------------- Net Assets - 100.0% $ 241,012,518 - --------------------------------------------------------------------------------------------------- (S) As of August 31, 2005, the fund had one security representing $393,144 and 0.2% of net assets that was fair valued in accordance with the policies adopted by the Board of Trustees. * Non-income producing security. ^ All or a portion of this security is on loan. + Restricted security. ADR = American Depository Receipt SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statement of Assets and Liabilities This statement represents your fund's balance sheet, which details the assets and liabilities composing the total value of the fund. AT 8/31/05 ASSETS - ------------------------------------------------------------------------------------------------------- Investments, at value, including $17,010,502 of securities on loan (identified cost, $237,109,761) $258,287,011 Cash 285 Receivable for fund shares sold 338,410 Interest and dividends receivable 368,543 Other assets 720 - ------------------------------------------------------------------------------------------------------- Total assets $258,994,969 - ------------------------------------------------------------------------------------------------------- LIABILITIES - ------------------------------------------------------------------------------------------------------- Payable for fund shares reacquired $763,397 Collateral for securities loaned, at value* 17,023,321 Payable to affiliates Management fee 4,258 Shareholder servicing costs 54,628 Distribution and service fees 3,872 Administrative services fee 98 Retirement plan administration and services fees 8 Accrued expenses and other liabilities 132,869 - ------------------------------------------------------------------------------------------------------- Total liabilities $17,982,451 - ------------------------------------------------------------------------------------------------------- Net assets $241,012,518 - ------------------------------------------------------------------------------------------------------- NET ASSETS CONSIST OF: - ------------------------------------------------------------------------------------------------------- Paid-in capital $213,414,943 Unrealized appreciation (depreciation) on investments and translation of assets and liabilities in foreign currencies 21,177,356 Accumulated net realized gain (loss) on investments and foreign currency transactions 6,456,210 Accumulated net investment loss (35,991) - ------------------------------------------------------------------------------------------------------- Net assets $241,012,518 - ------------------------------------------------------------------------------------------------------- Shares of beneficial interest outstanding 13,728,878 - ------------------------------------------------------------------------------------------------------- Class A shares - ------------------------------------------------------------------------------------------------------- Net assets $141,808,217 Shares outstanding 7,930,302 - ------------------------------------------------------------------------------------------------------- Net asset value per share $17.88 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25X$17.88) $18.97 - ------------------------------------------------------------------------------------------------------- Class B shares - ------------------------------------------------------------------------------------------------------- Net assets $71,087,589 Shares outstanding 4,174,373 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $17.03 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class C shares - ------------------------------------------------------------------------------------------------------- Net assets $17,897,822 Shares outstanding 1,054,909 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $16.97 - ------------------------------------------------------------------------------------------------------- Class I shares - ------------------------------------------------------------------------------------------------------- Net assets $3,170,438 Shares outstanding 172,969 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $18.33 - ------------------------------------------------------------------------------------------------------- Class R shares (formerly Class R1) - ------------------------------------------------------------------------------------------------------- Net assets $5,888,072 Shares outstanding 330,704 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $17.80 - ------------------------------------------------------------------------------------------------------- Class R1 shares - ------------------------------------------------------------------------------------------------------- Net assets $54,668 Shares outstanding 3,214 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $17.01 - ------------------------------------------------------------------------------------------------------- Class R2 shares - ------------------------------------------------------------------------------------------------------- Net assets $52,403 Shares outstanding 3,077 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $17.03 - ------------------------------------------------------------------------------------------------------- Class R3 shares (formerly Class R2) - ------------------------------------------------------------------------------------------------------- Net assets $948,217 Shares outstanding 53,454 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $17.74 - ------------------------------------------------------------------------------------------------------- Class R4 shares - ------------------------------------------------------------------------------------------------------- Net assets $52,513 Shares outstanding 2,938 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $17.88 - ------------------------------------------------------------------------------------------------------- Class R5 shares - ------------------------------------------------------------------------------------------------------- Net assets $52,579 Shares outstanding 2,938 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $17.90 - ------------------------------------------------------------------------------------------------------- On sales of $50,000 or more, the offering price of Class A shares is reduced. A contingent deferred sales charge may be imposed on redemptions of Class A, Class B and Class C shares. Shares outstanding are rounded for presentation purposes. * Non-cash collateral not included. SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statement of Operations This statement describes how much your fund received in investment income and paid in expenses. It also describes any gains and/or losses generated by fund operations. YEAR ENDED 8/31/05 NET INVESTMENT LOSS - ------------------------------------------------------------------------------------------------------ Income Dividends $2,903,531 Interest 162,134 Foreign taxes withheld (30,624) - ------------------------------------------------------------------------------------------------------ Total investment income $3,035,041 - ------------------------------------------------------------------------------------------------------ Expenses Management fee $1,254,079 Distribution and service fees 1,251,018 Shareholder servicing costs 391,170 Administrative services fee 21,701 Retirement plan administration and services fees 1,979 Trustees' compensation 10,915 Custodian fee 70,661 Printing 59,824 Postage 12,735 Auditing fees 43,528 Legal fees 7,592 Registration fees 129,623 Shareholder solicitation expenses 15,765 Miscellaneous 20,368 - ------------------------------------------------------------------------------------------------------ Total expenses $3,290,958 - ------------------------------------------------------------------------------------------------------ Fees paid indirectly (11,863) Reduction of expenses by investment adviser (898) - ------------------------------------------------------------------------------------------------------ Net expenses $3,278,197 - ------------------------------------------------------------------------------------------------------ Net investment loss $(243,156) - ------------------------------------------------------------------------------------------------------ REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS - ------------------------------------------------------------------------------------------------------ Realized gain (loss) (identified cost basis) Investment transactions $17,758,108 Foreign currency transactions 41 - ------------------------------------------------------------------------------------------------------ Net realized gain (loss) on investments and foreign currency transactions $17,758,149 - ------------------------------------------------------------------------------------------------------ Change in unrealized appreciation (depreciation) Investments $9,020,014 Translation of assets and liabilities in foreign currencies 305 - ------------------------------------------------------------------------------------------------------ Net unrealized gain (loss) on investments and foreign currency translation $9,020,319 - ------------------------------------------------------------------------------------------------------ Net realized and unrealized gain (loss) on investments and foreign currency $26,778,468 - ------------------------------------------------------------------------------------------------------ Change in net assets from operations $26,535,312 - ------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statements of Changes in Net Assets This statement describes the increases and/or decreases in net assets resulting from operations, any distributions, and any shareholder transactions. FOR YEARS ENDED 8/31 2005 2004 CHANGE IN NET ASSETS - ------------------------------------------------------------------------------------------------------ FROM OPERATIONS - ------------------------------------------------------------------------------------------------------ Net investment loss $(243,156) $(250,658) Net realized gain (loss) on investments and foreign currency transactions 17,758,149 17,255,617 Net unrealized gain (loss) on investments and foreign currency translation 9,020,319 (2,284,183) - ------------------------------------------------------------------------------------------------------ Change in net assets from operations $26,535,312 $14,720,776 - ------------------------------------------------------------------------------------------------------ Change in net assets from fund share transactions $53,568,852 $1,733,217 - ------------------------------------------------------------------------------------------------------ Redemption fees $2,690 $-- - ------------------------------------------------------------------------------------------------------ Total change in net assets $80,106,854 $16,453,993 - ------------------------------------------------------------------------------------------------------ NET ASSETS - ------------------------------------------------------------------------------------------------------ At beginning of period 160,905,664 144,451,671 - ------------------------------------------------------------------------------------------------------ At end of period (including accumulated net investment loss of $35,991 and $52,021, respectively) $241,012,518 $160,905,664 - ------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Financial Highlights The financial highlights table is intended to help you understand the fund's financial performance for the past 5 years (or, if shorter, the period of the fund's operation). Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund (assuming reinvestment of all distributions) held for the entire period. This information has been audited by the fund's independent registered public accounting firm, whose report, together with the fund's financial statements, are included in this report. CLASS A YEARS ENDED 8/31 ------------------------------------------------------------------------------ 2005= 2004 2003 2002 2001 Net asset value, beginning of period $15.35 $13.97 $12.51 $15.15 $18.82 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------------- Net investment income $0.03 $0.03 $0.04 $0.00+++ $0.02 Net realized and unrealized gain (loss) on investments and foreign currency 2.50 1.35 1.42 (2.38) (3.69) - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.53 $1.38 $1.46 $(2.38) $(3.67) - ----------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $-- $-- $-- $(0.26) $-- - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $17.88 $15.35 $13.97 $12.51 $15.15 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 16.48** 9.88**+ 11.67 (16.00) (19.50) - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.41 1.38 1.47 1.37 1.32 Expenses after expense reductions## 1.41 1.38 1.47 1.37 1.32 Net investment income 0.17 0.22 0.29 0.03 0.12 Portfolio turnover 81 116 121 100 78 Net assets at end of period (000 Omitted) $141,808 $67,415 $53,704 $50,366 $63,319 - ----------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS B YEARS ENDED 8/31 ----------------------------------------------------------------------- 2005= 2004 2003 2002 2001 Net asset value, beginning of period $14.71 $13.48 $12.14 $14.81 $18.52 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.08) $(0.06) $(0.04) $(0.09) $(0.09) Net realized and unrealized gain (loss) on investments and foreign currency 2.40 1.29 1.38 (2.32) (3.62) - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.32 $1.23 $1.34 $(2.41) $(3.71) - ---------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $-- $-- $-- $(0.26) $-- - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $17.03 $14.71 $13.48 $12.14 $14.81 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 15.77** 9.12**+ 11.04 (16.57) (20.03) - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.06 2.02 2.12 2.02 1.97 Expenses after expense reductions## 2.06 2.02 2.12 2.02 1.97 Net investment loss (0.47) (0.43) (0.36) (0.62) (0.53) Portfolio turnover 81 116 121 100 78 Net assets at end of period (000 Omitted) $71,088 $73,395 $75,007 $73,146 $91,455 - ---------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS C YEARS ENDED 8/31 ----------------------------------------------------------------------- 2005= 2004 2003 2002 2001 Net asset value, beginning of period $14.66 $13.43 $12.10 $14.76 $18.46 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - -------------------------------------------------------------------------------- Net investment loss $(0.08) $(0.06) $(0.04) $(0.09) $(0.09) Net realized and unrealized gain (loss) on investments and foreign currency 2.39 1.29 1.37 (2.31) (3.61) - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.31 $1.23 $1.33 $(2.40) $(3.70) - ---------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $-- $-- $-- $(0.26) $-- - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.97 $14.66 $13.43 $12.10 $14.76 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 15.76** 9.16**+ 10.99 (16.56) (20.04) - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.06 2.02 2.12 2.02 1.97 Expenses after expense reductions## 2.06 2.02 2.12 2.02 1.97 Net investment loss (0.48) (0.43) (0.35) (0.62) (0.52) Portfolio turnover 81 116 121 100 78 Net assets at end of period (000 Omitted) $17,898 $15,990 $15,325 $17,521 $22,081 - ---------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued YEARS ENDED 8/31 ----------------------------------------------------------------------- CLASS I 2005= 2004 2003 2002 2001 Net asset value, beginning of period $15.68 $14.22 $12.69 $15.31 $18.95 - -------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - -------------------------------------------------------------------------------------------------------------------------- Net investment income $0.09 $0.09 $0.08 $0.06 $0.08 Net realized and unrealized gain (loss) on investments and foreign currency 2.56 1.37 1.45 (2.42) (3.72) - -------------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.65 $1.46 $1.53 $(2.36) $(3.64) - -------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $-- $-- $-- $(0.26) $-- - -------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $18.33 $15.68 $14.22 $12.69 $15.31 - -------------------------------------------------------------------------------------------------------------------------- Total return (%)& 16.90** 10.27**+ 12.06 (15.70) (19.21) - -------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.09 1.03 1.12 1.02 0.97 Expenses after expense reductions## 1.09 1.03 1.12 1.02 0.97 Net investment income 0.51 0.56 0.65 0.38 0.47 Portfolio turnover 81 116 121 100 78 Net assets at end of period (000 Omitted) $3,170 $460 $398 $428 $486 - -------------------------------------------------------------------------------------------------------------------------- CLASS R (FORMERLY CLASS R1) YEARS ENDED 8/31 ------------------------------ PERIOD ENDED 2005= 2004 8/31/03* Net asset value, beginning of period $15.31 $13.96 $11.98### - -------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - -------------------------------------------------------------------------------------------------------------------------- Net investment income (loss) $0.00+++ $0.02 $(0.00)+++ Net realized and unrealized gain on investments and foreign currency 2.49 1.33 1.98^ - -------------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.49 $1.35 $1.98 - -------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $17.80 $15.31 $13.96 - -------------------------------------------------------------------------------------------------------------------------- Total return (%)& 16.26** 9.67**+ 16.53###++ - -------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.56 1.49 1.74+ Expenses after expense reductions## 1.56 1.49 1.74+ Net investment income (loss) 0.03 0.13 (0.04)+ Portfolio turnover 81 116 121 Net assets at end of period (000 Omitted) $5,888 $3,030 $17 - -------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R1 CLASS R2 PERIOD ENDED PERIOD ENDED 8/31/05* 8/31/05* Net asset value, beginning of period $16.25 $16.25 - ---------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------- Net investment loss $(0.04) $(0.02) Net realized and unrealized gain on investments and foreign currency 0.80^ 0.80^ - ---------------------------------------------------------------------------------------------------------- Total from investment operations $0.76 $0.78 - ---------------------------------------------------------------------------------------------------------- Net asset value, end of period $17.01 $17.03 - ---------------------------------------------------------------------------------------------------------- Total return (%)&** 4.68++ 4.80++ - ---------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.23+ 1.93+ Expenses after expense reductions## 2.23+ 1.93+ Net investment loss (0.63)+ (0.33)+ Portfolio turnover 81 81 Net assets at end of period (000 Omitted) $55 $52 - ---------------------------------------------------------------------------------------------------------- YEAR ENDED PERIOD ENDED CLASS R3 (FORMERLY CLASS R2) 8/31/05= 8/31/04* Net asset value, beginning of period $15.29 $14.57 - ---------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------- Net investment income (loss) $(0.04) $0.03 Net realized and unrealized gain on investments and foreign currency 2.49 0.69^ - ---------------------------------------------------------------------------------------------------------- Total from investment operations $2.45 $0.72 - ---------------------------------------------------------------------------------------------------------- Net asset value, end of period $17.74 $15.29 - ---------------------------------------------------------------------------------------------------------- Total return (%)&** 16.02 4.94+++ - ---------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.81 1.80+ Expenses after expense reductions## 1.81 1.80+ Net investment income (loss) (0.22) 0.27+ Portfolio turnover 81 116 Net assets at end of period (000 Omitted) $948 $616 - ---------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R4 CLASS R5 PERIOD ENDED PERIOD ENDED 8/31/05* 8/31/05* Net asset value, beginning of period $17.02 $17.02 - ---------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------- Net investment income $0.01 $0.03 Net realized and unrealized gain on investments and foreign currency 0.85^ 0.85^ - ---------------------------------------------------------------------------------------------------------- Total from investment operations $0.86 $0.88 - ---------------------------------------------------------------------------------------------------------- Net asset value, end of period $17.88 $17.90 - ---------------------------------------------------------------------------------------------------------- Total return (%)&** 5.05++ 5.17++ - ---------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.43+ 1.13+ Expenses after expense reductions## 1.43+ 1.13+ Net investment income 0.17+ 0.47+ Portfolio turnover 81 81 Net assets at end of period (000 Omitted) $53 $53 - ---------------------------------------------------------------------------------------------------------- * For the period from the class' inception, December 31, 2002 (Class R), October 31, 2003 (Class R3) and April 1, 2005 (Classes R1, R2, R4, and R5) through the stated period end. ** Certain expenses have been reduced without which performance would have been lower. + Annualized. ++ Not annualized. +++ Per share amount was less than $0.01. # Per share data are based on average shares outstanding. ## Ratios do not reflect reductions from fees paid indirectly. ### The net asset value and total return previously reported as $12.02 and 16.14% (Class R) have been revised to reflect the net asset value from the day prior to the class' inception date. The net asset value and total return previously reported were from inception date, the date the share class was first available to public shareholders. ^ The per share amount is not in accordance with the net realized and unrealized gain/loss for the period because of the timing of sales of fund shares and the amount of per share realized and unrealized gains and losses at such time. + The fund's net asset value and total return calculation include a non-recurring accrual recorded as a result of an administrative proceeding regarding disclosure of brokerage allocation practices in connection with fund sales. The non-recurring accrual did not have a material impact on the net asset value per share based on the shares outstanding on the day the proceeds were recorded. (+) Total returns do not include any applicable sales charges. & From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. = Redemption fees charged by the fund during this period resulted in a per share impact of less than $0.01. SEE NOTES TO FINANCIAL STATEMENTS NOTES TO FINANCIAL STATEMENTS (1) BUSINESS AND ORGANIZATION MFS Core Equity Fund (the fund) is a diversified series of MFS Series Trust I (the trust). The trust is organized as a Massachusetts business trust and is registered under the Investment Company Act of 1940, as amended, as an open- end management investment company. (2) SIGNIFICANT ACCOUNTING POLICIES GENERAL - The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The fund can invest in foreign securities. Investments in foreign securities are vulnerable to the effects of changes in the relative values of the local currency and the U.S. dollar and to the effects of changes in each country's legal, political, and economic environment. INVESTMENT VALUATIONS - Equity securities in the fund's portfolio for which market quotations are available are valued at the last sale or official closing price as reported by an independent pricing service on the primary market or exchange on which they are primarily traded, or at the last quoted bid price for securities in which there were no sales during the day. Equity securities traded over the counter are valued at the last sales price traded each day as reported by an independent pricing service, or to the extent there are no sales reported, such securities are valued on the basis of quotations obtained from brokers and dealers. Short-term obligations with a remaining maturity in excess of 60 days will be valued upon dealer-supplied valuations. All other short-term obligations in the fund's portfolio are valued at amortized cost, which approximates market value as determined by the Board of Trustees. Money market mutual funds are valued at net asset value. Investment valuations, other assets, and liabilities initially expressed in foreign currencies are converted each business day into U.S. dollars based upon current exchange rates. When pricing service information or market quotations are not readily available, securities are priced at fair value as determined under the direction of the Board of Trustees. For example, significant events (such as movement in the U.S. securities market, or other regional and local developments) may occur between the time that foreign markets close (where the security is principally traded) and the time that the fund calculates its net asset value (generally, the close of the NYSE) that may impact the value of securities traded in these foreign markets. In these cases, the fund may utilize information from an external vendor or other sources to adjust closing market quotations of foreign equity securities to reflect what it believes to be the fair value of the securities as of the fund's valuation time. Because the frequency of significant events is not predictable, fair valuation of foreign equity securities may occur on a frequent basis. REPURCHASE AGREEMENTS - The fund may enter into repurchase agreements with institutions that the fund's investment adviser has determined are creditworthy. Each repurchase agreement is recorded at cost. The fund requires that the securities collateral in a repurchase transaction be transferred to the custodian in a manner sufficient to enable the fund to obtain those securities in the event of a default under the repurchase agreement. The fund monitors, on a daily basis, the value of the collateral to ensure that its value, including accrued interest, is greater than amounts owed to the fund under each such repurchase agreement. The fund, along with other affiliated entities of Massachusetts Financial Services Company (MFS), may utilize a joint trading account for the purpose of entering into one or more repurchase agreements. FOREIGN CURRENCY TRANSLATION - Purchases and sales of foreign investments, income, and expenses are converted into U.S. dollars based upon currency exchange rates prevailing on the respective dates of such transactions. Gains and losses attributable to foreign currency exchange rates on sales of securities are recorded for financial statement purposes as net realized gains and losses on investments. Gains and losses attributable to foreign exchange rate movements on income and expenses are recorded for financial statement purposes as foreign currency transaction gains and losses. That portion of both realized and unrealized gains and losses on investments that results from fluctuations in foreign currency exchange rates is not separately disclosed. SECURITY LOANS - State Street Bank and Trust Company ("State Street"), as lending agent, may loan the securities of the fund to certain qualified institutions (the "Borrowers") approved by the fund. The loans are collateralized at all times by cash and/or U.S. Treasury securities in an amount at least equal to the market value of the securities loaned. State Street provides the fund with indemnification against Borrower default. The fund bears the risk of loss with respect to the investment of cash collateral. On loans collateralized by cash, the cash collateral is invested in a money market fund or short-term securities. A portion of the income generated upon investment of the collateral is remitted to the Borrowers, and the remainder is allocated between the fund and the lending agent. On loans collateralized by U.S. Treasury securities, a fee is received from the Borrower, and is allocated between the fund and the lending agent. Income from securities lending is included in interest income on the Statement of Operations. The dividend and interest income earned on the securities loaned is accounted for in the same manner as other dividend and interest income. At August 31, 2005, the value of securities loaned was $17,010,502. These loans were collateralized by cash of $17,023,321 and non-cash U.S. Treasury obligations of $473,703. SHORT TERM FEES - For purchases made on or after July 1, 2004 and before April 1, 2005, the fund charged a 2% redemption fee (which was retained by the fund) on proceeds from Class A, Class B, Class C, and Class I shares redeemed or exchanged within 5 business days following their acquisition (either by purchase or exchange). Effective April 1, 2005, the fund will no longer charge a redemption fee. See the fund's prospectus for details. Any redemption fees charged are accounted for as an addition to paid-in capital. INVESTMENT TRANSACTIONS AND INCOME - Investment transactions are recorded on the trade date. Interest income is recorded on the accrual basis. All premium and discount is amortized or accreted for financial statement purposes in accordance with U.S. generally accepted accounting principles. All discount is accreted for tax reporting purposes as required by federal income tax regulations. Dividends received in cash are recorded on the ex-dividend date. Dividend and interest payments received in additional securities are recorded on the ex-dividend or ex-interest date in an amount equal to the value of the security on such date. The fund may receive proceeds from litigation settlements involving its portfolio holdings. Any proceeds received are reflected in realized gain/loss in the Statement of Operations, or in unrealized gain/loss if the security is still held by the fund. FEES PAID INDIRECTLY - The fund's custody fee is reduced according to an arrangement that measures the value of cash deposited with the custodian by the fund. During the year ended August 31, 2005, the fund's custodian fees were reduced by $5,475 under this arrangement. The fund has entered into a commission recapture agreement, under which certain brokers will credit the fund a portion of the commissions generated, to offset certain expenses of the fund. For the year ended August 31, 2005, the fund's miscellaneous expenses were reduced by $6,388 under this agreement. These amounts are shown as a reduction of total expenses on the Statement of Operations. TAX MATTERS AND DISTRIBUTIONS - The fund's policy is to comply with the provisions of the Internal Revenue Code (the Code) applicable to regulated investment companies and to distribute to shareholders all of its net taxable income, including any net realized gain on investments. Accordingly, no provision for federal income or excise tax is provided. Distributions to shareholders are recorded on the ex-dividend date. The fund distinguishes between distributions on a tax basis and a financial reporting basis and only distributions in excess of tax basis earnings and profits are reported in the financial statements as distributions from paid-in capital. Differences in the recognition or classification of income between the financial statements and tax earnings and profits, which result in temporary over-distributions for financial statement purposes, are classified as distributions in excess of net investment income or net realized gains. Common types of book and tax differences that could occur include differences in accounting for foreign currency transactions, net operating losses, treating a portion of the proceeds from redemptions as a distribution from realized gains for tax purposes, real estate investment trusts, and wash sales. The fund paid no distributions for the years ended August 31, 2005 and August 31, 2004. During the year ended August 31, 2005, accumulated net investment loss decreased by $259,186, accumulated net realized gain on investments and foreign currency transactions decreased by $419,060, and paid-in capital increased by $159,874 due to differences between book and tax accounting for foreign currency transactions, net operating losses, treating a portion of the proceeds from redemptions as a distribution from realized gains for tax purposes, and real estate investment trusts. As of August 31, 2005, the components of distributable earnings (accumulated losses) on a tax basis were as follows: Undistributed long-term capital gain $6,815,148 Unrealized appreciation (depreciation) 20,818,312 Other temporary differences (35,885) MULTIPLE CLASSES OF SHARES OF BENEFICIAL INTEREST - The fund offers multiple classes of shares, which differ in their respective distribution and service fees. All shareholders bear the common expenses of the fund based on daily net assets of each class, without distinction between share classes. Dividends are declared separately for each class. Differences in per share dividend rates are generally due to differences in separate class expenses. Class B shares will convert to Class A shares approximately eight years after purchase. (3) TRANSACTIONS WITH AFFILIATES INVESTMENT ADVISER - The fund has an investment advisory agreement with Massachusetts Financial Services Company (MFS) to provide overall investment advisory and administrative services, and general office facilities. The management fee is computed daily and paid monthly at the following annual rates: First $500 million of average net assets 0.65% Average net assets in excess of $500 million 0.55% The management fee incurred for the year ended August 31, 2005 was equivalent to an annual effective rate of 0.65% of the fund's average daily net assets. DISTRIBUTOR - MFS Fund Distributors, Inc. (MFD), a wholly owned subsidiary of MFS, as distributor, received $38,144 for the year ended August 31, 2005, as its portion of the initial sales charge on sales of Class A shares of the fund. The Board of Trustees has adopted a distribution plan for certain class shares pursuant to Rule 12b-1 of the Investment Company Act of 1940. The fund's distribution plan provides that the fund will pay MFD for services provided by MFD and financial intermediaries in connection with the distribution and servicing of certain share classes. One component of the plan is a distribution fee paid to and retained by MFD. Another component of the plan is a service fee paid to MFD which subsequently pays a portion of this fee to financial intermediaries that enter into sales or service agreements with MFD, or its affiliates, based on the average daily net assets of accounts attributable to such intermediaries. Distribution Fee Plan Table: TOTAL ANNUAL SERVICE FEE DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE RETAINED AND SERVICE FEE RATE FEE RATE PLAN(1) RATE(2) BY MFD(3) FEE Class A 0.10% 0.25% 0.35% 0.35% $19,228 $342,731 Class B 0.75% 0.25% 1.00% 1.00% 600 715,035 Class C 0.75% 0.25% 1.00% 1.00% 451 169,311 Class R 0.25% 0.25% 0.50% 0.50% 7 20,133 Class R1 0.50% 0.25% 0.75% 0.75% 93 162 Class R2 0.25% 0.25% 0.50% 0.50% 62 107 Class R3 0.25% 0.25% 0.50% 0.50% 21 3,485 Class R4 -- 0.25% 0.25% 0.25% 31 54 - ---------------------------------------------------------------------------------------------------------------------------- Total Distribution and Service Fees $1,251,018 (1) In accordance with the distribution plan for certain classes, the fund pays distribution and/or service fees up to these annual percentage rates of each class' average daily net assets. (2) The annual effective rates represent actual fees incurred under the distribution plan for the year ended August 31, 2005 based on each class' average daily net assets. (3) For the year ended August 31, 2005, MFD retained these service fees. Certain Class A and Class C shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within 12 months following the purchase. Class B shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within six years of purchase. MFD retained all contingent deferred sales charges. Contingent deferred sales charges imposed during the year ended August 31, 2005 were as follows: AMOUNT Class A $1,892 Class B $95,523 Class C $871 SHAREHOLDER SERVICING AGENT - The fund pays a portion of shareholder servicing costs to MFS Service Center, Inc. (MFSC), a wholly-owned subsidiary of MFS. MFSC receives a fee from the fund, for its services as shareholder servicing agent, set periodically under the supervision of the fund's Board of Trustees. For the year ended August 31, 2005, the fee was $201,687, which equated to 0.1045% annually of the fund's average daily net assets. MFSC also receives payment from the fund for out-of-pocket and sub-accounting expenses paid by MFSC on behalf of the fund. For the year ended August 31, 2005, these costs amounted to $116,928. ADMINISTRATOR - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to certain funds for which MFS acts as investment adviser. Under an administrative services agreement, the funds may partially reimburse MFS the costs incurred to provide these services, subject to review and approval by the Board of Trustees. Each fund is charged a fixed amount plus a fee based on calendar year average net assets. Effective July 1, 2005, the fund's annual fixed amount is $10,000. The administrative services fee incurred for the year ended August 31, 2005 was equivalent to an annual effective rate of 0.0112% of the fund's average daily net assets. In addition to the administrative services provided by MFS to the fund as described above, MFS is responsible for providing certain retirement plan administration and services with respect to certain Class R shares. These services include various administrative, recordkeeping, and communication/ educational services with respect to the retirement plans which invest in these shares, and may be provided directly by MFS or by a third party. For the year ended August 31, 2005, the fund paid an annual retirement plan administration and services fee up to the following annual percentage rates of each class' average daily net assets: AMOUNT FEE TOTAL RETAINED RATE AMOUNT BY MFS Class R1 0.45% $97 $ -- Class R2 0.40% 86 -- Class R3 (formerly Class R2) 0.25% 1,743 179 Class R4 0.15% 32 -- Class R5 0.10% 21 -- - ----------------------------------------------------------------------------- Total Retirement Plan Administration and Services Fees $1,979 $179 TRUSTEES' COMPENSATION - The fund pays compensation to Independent Trustees in the form of a retainer, attendance fees, and additional compensation to Board and Committee chairpersons. The fund does not pay compensation directly to Trustees who are officers of the investment adviser, or to officers of the fund, all of whom receive remuneration for their services to the fund from MFS. Certain officers and Trustees of the fund are officers or directors of MFS, MFD, and MFSC. The fund has an unfunded, defined benefit plan for retired Independent Trustees which resulted in a pension expense of $2,070. The fund also has an unfunded retirement benefit deferral plan for certain current Independent Trustees which resulted in an expense of $3,224. Both amounts are included in Trustees compensation for the year ended August 31, 2005. OTHER - This fund and certain other MFS funds (the funds) have entered into a services agreement (the Agreement) which provides for payment of fees by the funds to Tarantino LLC in return for the provision of services of an Independent Chief Compliance Officer (ICCO) for the funds. The ICCO is an officer of the funds and the sole member of Tarantino LLC. MFS has agreed to reimburse the fund for a portion of the payments made by the funds to Tarantino LLC in the amount of $898, which is shown as a reduction of total expenses in the Statement of Operations. Additionally, MFS has agreed to bear all expenses associated with office space, other administrative support, and supplies provided to the ICCO. The funds can terminate the Agreement with Tarantino LLC at any time under the terms of the Agreement. The fund's investment adviser, MFS, was the subject of an administrative proceeding regarding disclosure of brokerage allocation practices in connection with fund sales. As a result, proceeds in the amount of $52,378 were paid to the fund on February 16, 2005. (4) PORTFOLIO SECURITIES Purchases and sales of investments, other than purchased option transactions and short-term obligations, were as follows: PURCHASES SALES U.S. government securities $656,667 $5,109,113 - ------------------------------------------------------------------------------- Investments (non-U.S. government securities) $209,702,406 $148,993,724 The cost and unrealized appreciation and depreciation in the value of the investments owned by the fund, as computed on a federal income tax basis, are as follows: Aggregate cost $237,468,699 ---------------------------------------------------------- Gross unrealized appreciation $26,658,272 Gross unrealized depreciation (5,839,960) ----------------------------------------------------------- Net unrealized appreciation (depreciation) $20,818,312 (5) SHARES OF BENEFICIAL INTEREST The fund's Declaration of Trust permits the Trustees to issue an unlimited number of full and fractional shares of beneficial interest. Transactions in fund shares were as follows: Year ended 8/31/05 Year ended 8/31/04 SHARES AMOUNT SHARES AMOUNT CLASS A SHARES Shares sold 5,204,906 $90,048,226 1,920,069 $28,691,770 Shares reacquired (1,666,274) (28,481,139) (1,372,319) (21,034,291) - ------------------------------------------------------------------------------------------------------------ Net change 3,538,632 $61,567,087 547,750 $7,657,479 CLASS B SHARES Shares sold 1,321,624 $21,946,642 1,298,612 $18,903,690 Shares reacquired (2,135,925) (34,776,369) (1,875,435) (27,742,705) - ------------------------------------------------------------------------------------------------------------ Net change (814,301) $(12,829,727) (576,823) $(8,839,015) CLASS C SHARES Shares sold 338,243 $5,567,632 241,139 $3,496,748 Shares reacquired (374,082) (6,036,198) (291,465) (4,264,486) - ------------------------------------------------------------------------------------------------------------ Net change (35,839) $(468,566) (50,326) $(767,738) CLASS I SHARES Shares sold 164,757 $2,901,520 7,449 $113,720 Shares reacquired (21,124) (370,848) (6,092) (93,354) - ------------------------------------------------------------------------------------------------------------ Net change 143,633 $2,530,672 1,357 $20,366 CLASS R SHARES (FORMERLY CLASS R1) Shares sold 252,058 $4,402,599 431,299 $6,712,888 Shares reacquired (119,291) (2,072,962) (234,601) (3,650,907) - -------------------------------------------------------------------------------------------------------------- Net change 132,767 $2,329,637 196,698 $3,061,981 Period ended 8/31/05* SHARES AMOUNT CLASS R1 SHARES Shares sold 3,214 $52,371 - -------------------------------------------------------------------------- CLASS R2 SHARES Shares sold 3,077 $50,000 - -------------------------------------------------------------------------- Year ended 8/31/05 Period ended 8/31/04** SHARES AMOUNT SHARES AMOUNT CLASS R3 SHARES (FORMERLY CLASS R2) Shares sold 22,723 $393,385 79,265 $1,178,842 Shares reacquired (9,547) (156,007) (38,987) (578,698) - ------------------------------------------------------------------------------------------------------------ Net change 13,176 $237,378 40,278 $600,144 Period ended 8/31/05* SHARES AMOUNT CLASS R4 SHARES Shares sold 2,938 $50,000 - -------------------------------------------------------------------------- CLASS R5 SHARES Shares sold 2,938 $50,000 - ---------------------------------------------------------------------------- * For the period from April 1, 2005, through August 31, 2005. ** For the period from October 31, 2003, through August 31, 2004. (6) LINE OF CREDIT The fund and other affiliated funds participate in a $1 billion unsecured line of credit provided by a syndication of banks under a credit agreement. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its borrowings, at a rate equal to the Federal Reserve funds rate plus 0.35%. In addition, a commitment fee, based on the average daily, unused portion of the line of credit, is allocated among the participating funds at the end of each calendar quarter. The commitment fee allocated to the fund for the year ended August 31, 2005 was $723, and is included in miscellaneous expense. The fund had no significant borrowings during the year ended August 31, 2005. (7) RESTRICTED SECURITIES At August 31, 2005, the fund owned the following restricted securities which are subject to legal or contractual restrictions on resale, excluding securities issued under Rule 144A, constituting 0.2% of net assets which may not be publicly sold without registration under the Securities Act of 1933. The fund does not have the right to demand that such securities be registered. The value of these securities is determined by valuations furnished by dealers or by a pricing service, or if not available, in good faith at the direction of the Trustees. DATE OF SHARES/PAR DESCRIPTION ACQUISITION AMOUNT COST VALUE Aber Diamond Corp. 12/07/04 11,600 $403,691 $393,144 REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Trustees of MFS Series Trust I and Shareholders of MFS Core Equity Fund: We have audited the accompanying statement of assets and liabilities of MFS Core Equity Fund (the Fund) (one of the portfolios comprising MFS Series Trust I), including the portfolio of investments, as of August 31, 2005, and the related statement of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the periods indicated therein. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. We were not engaged to perform an audit of the Fund's internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of August 31, 2005, by correspondence with the custodian. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of MFS Core Equity Fund at August 31, 2005, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and its financial highlights for each of the periods indicated therein, in conformity with U.S. generally accepted accounting principles. /s/ ERNST & YOUNG LLP Boston, Massachusetts October 11, 2005 RESULTS OF SHAREHOLDER MEETING (unaudited) - 8/31/05 At a special meeting of shareholders of MFS Series Trust I, which was held on March 23, 2005, the following actions were taken: ITEM 1. To elect a Board of Trustees: NUMBER OF DOLLARS ------------------------------------------- NOMINEE AFFIRMATIVE WITHHOLD AUTHORITY Lawrence H. Cohn, M.D. $8,025,286,508.56 $117,939,292.78 - ------------------------------------------------------------------------------- David H. Gunning 8,030,402,677.64 112,823,123.70 - ------------------------------------------------------------------------------- William R. Gutow 8,027,523,726.27 115,702,075.07 - ------------------------------------------------------------------------------- Michael Hegarty 8,021,162,525.49 122,063,275.85 - ------------------------------------------------------------------------------- J. Atwood Ives 8,024,062,680.07 119,163,121.27 - ------------------------------------------------------------------------------- Amy B. Lane 8,019,792,882.59 123,432,918.75 - ------------------------------------------------------------------------------- Robert J. Manning 8,030,980,361.78 112,245,439.56 - ------------------------------------------------------------------------------- Lawrence T. Perera 8,025,935,401.12 117,290,400.22 - ------------------------------------------------------------------------------- Robert C. Pozen 8,031,655,470.25 111,570,331.08 - ------------------------------------------------------------------------------- J. Dale Sherratt 8,027,226,595.42 115,999,205.92 - ------------------------------------------------------------------------------- Laurie J. Thomsen 8,019,388,506.87 123,837,294.47 - ------------------------------------------------------------------------------- TRUSTEES AND OFFICERS -- IDENTIFICATION AND BACKGROUND The Trustees and officers of the Trust, as of October 1, 2005, are listed below, together with their principal occupations during the past five years. (Their titles may have varied during that period.) The address of each Trustee and officer is 500 Boylston Street, Boston, Massachusetts 02116. PRINCIPAL OCCUPATIONS DURING POSITION(s) HELD TRUSTEE/OFFICER THE PAST FIVE YEARS & NAME, DATE OF BIRTH WITH FUND SINCE(1) OTHER DIRECTORSHIPS(2) - ------------------- ---------------- --------------- ----------------------------- INTERESTED TRUSTEES Robert J. Manning(3) Trustee and February 2004 Massachusetts Financial Services (born 10/20/63) President Company, Chief Executive Officer, President, Chief Investment Officer and Director Robert C. Pozen(3) Trustee February 2004 Massachusetts Financial Services (born 08/08/46) Company, Chairman (since February 2004); Harvard Law School (education), John Olin Visiting Professor (since July 2002); Secretary of Economic Affairs, The Commonwealth of Massachusetts (January 2002 to December 2002); Fidelity Investments, Vice Chairman (June 2000 to December 2001); Fidelity Management & Research Company (investment adviser), President (March 1997 to July 2001); Bell Canada Enterprises (telecommunications), Director; Medtronic, Inc. (medical technology), Director; Telesat (satellite communications), Director INDEPENDENT TRUSTEES J. Atwood Ives Trustee and Chair February 1992 Private investor; Eastern (born 05/01/36) of Trustees Enterprises (diversified services company), Chairman, Trustee and Chief Executive Officer (until November 2000) Lawrence H. Cohn, M.D. Trustee August 1993 Brigham and Women's Hospital, (born 03/11/37) Chief of Cardiac Surgery; Harvard Medical School, Professor of Surgery David H. Gunning Trustee January 2004 Cleveland-Cliffs Inc. (mining (born 05/30/42) products and service provider), Vice Chairman/Director (since April 2001); Encinitos Ventures (private investment company), Principal (1997 to April 2001); Lincoln Electric Holdings, Inc. (welding equipment manufacturer), Director William R. Gutow Trustee December 1993 Private investor and real estate (born 09/27/41) consultant; Capitol Entertainment Management Company (video franchise), Vice Chairman Michael Hegarty Trustee December 2004 Retired; AXA Financial (financial (born 12/21/44) services and insurance), Vice Chairman and Chief Operating Officer (until May 2001); The Equitable Life Assurance Society (insurance), President and Chief Operating Officer (until May 2001) Amy B. Lane Trustee January 2004 Retired; Merrill Lynch & Co., (born 02/08/53) Inc., Managing Director, Investment Banking Group (1997 to February 2001); Borders Group, Inc. (book and music retailer), Director; Federal Realty Investment Trust (real estate investment trust), Trustee Lawrence T. Perera Trustee July 1981 Hemenway & Barnes (attorneys), (born 06/23/35) Partner J. Dale Sherratt Trustee August 1993 Insight Resources, Inc. (born 09/23/38) (acquisition planning specialists), President; Wellfleet Investments (investor in health care companies), Managing General Partner (since 1993); Cambridge Nutraceuticals (professional nutritional products), Chief Executive Officer (until May 2001) Laurie J. Thomsen Trustee March 2005 Private investor; Prism Venture (born 08/05/57) Partners (venture capital), Co- founder and General Partner (until June 2004); St. Paul Travelers Companies (commercial property liability insurance), Director OFFICERS Robert J. Manning(3) President and February 2004 Massachusetts Financial Services (born 10/20/63) Trustee Company, Chief Executive Officer, President, Chief Investment Officer and Director Tracy Atkinson(3) Treasurer September 2005 Massachusetts Financial Services (born 12/30/64) Company, Senior Vice President (since September 2004); PricewaterhouseCoopers LLP, Partner (prior to September 2004) Christopher R. Bohane(3) Assistant July 2005 Massachusetts Financial Services (born 1/18/74) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since April 2003); Kirkpatrick & Lockhart LLP (law firm), Associate (prior to April 2003); Nvest Services Company, Assistant Vice President and Associate Counsel (prior to January 2001) Jeffrey N. Carp(3) Secretary and September 2004 Massachusetts Financial Services (born 12/01/56) Clerk Company, Executive Vice President, General Counsel and Secretary (since April 2004); Hale and Dorr LLP (law firm), Partner (prior to April 2004) Ethan D. Corey(3) Assistant July 2005 Massachusetts Financial Services (born 11/21/63) Secretary and Company, Special Counsel (since Assistant Clerk December 2004); Dechert LLP (law firm), Counsel (prior to December 2004) Stephanie A. DeSisto(3) Assistant May 2003 Massachusetts Financial Services (born 10/01/53) Treasurer Company, Vice President (since April 2003); Brown Brothers Harriman & Co., Senior Vice President (November 2002 to April 2003); ING Groep N.V./Aeltus Investment Management, Senior Vice President (prior to November 2002) David L. DiLorenzo(3) Assistant July 2005 Massachusetts Financial Services (born 8/10/68) Treasurer Company, Vice President (since June 2005); JP Morgan Investor Services, Vice President (January 2001 to June 2005); State Street Bank, Vice President and Corporate Audit Manager (prior to January 2001) Timothy M. Fagan(3) Assistant September 2005 Massachusetts Financial Services (born 7/10/68) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since September 2005); John Hancock Advisers, LLC, Vice President and Chief Compliance Officer (September 2004 to August 2005), Senior Attorney (prior to September 2004); John Hancock Group of Funds, Vice President and Chief Compliance Officer (September 2004 to December 2004) Mark D. Fischer(3) Assistant July 2005 Massachusetts Financial Services (born 10/27/70) Treasurer Company, Vice President (since May 2005); JP Morgan Investment Management Company, Vice President (prior to May 2005) Brian T. Hourihan(3) Assistant September 2004 Massachusetts Financial Services (born 11/11/64) Secretary and Company, Vice President, Senior Assistant Clerk Counsel and Assistant Secretary (since June 2004); Affiliated Managers Group, Inc., Chief Legal Officer/Centralized Compliance Program (January to April 2004); Fidelity Research & Management Company, Assistant General Counsel (prior to January 2004) Ellen Moynihan(3) Assistant April 1997 Massachusetts Financial Services (born 11/13/57) Treasurer Company, Vice President Susan S. Newton(3) Assistant May 2005 Massachusetts Financial Services (born 03/07/50) Secretary and Company, Senior Vice President and Assistant Clerk Associate General Counsel (since April 2005); John Hancock Advisers, LLC, Senior Vice President, Secretary and Chief Legal Officer (prior to April 2005); John Hancock Group of Funds, Senior Vice President, Secretary and Chief Legal Officer (prior to April 2005) Susan A. Pereira(3) Assistant July 2005 Massachusetts Financial Services (born 11/05/70) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since June 2004); Bingham McCutchen LLP (law firm), Associate (January 2001 to June 2004); Preti, Flaherty, Beliveau, Pachios & Haley, LLC, Associate (prior to January 2001) Frank L. Tarantino Independent Chief June 2004 Tarantino LLC (provider of (born 03/07/44) Compliance compliance services), Principal Officer (since June 2004); CRA Business Strategies Group (consulting services), Executive Vice President (April 2003 to June 2004); David L. Babson & Co. (investment adviser), Managing Director, Chief Administrative Officer and Director (February 1997 to March 2003) James O. Yost(3) Assistant September 1990 Massachusetts Financial Services (born 06/12/60) Treasurer Company, Senior Vice President - ------------ (1) Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served continuously since appointment unless indicated otherwise. (2) Directorships or trusteeships of companies required to report to the Securities and Exchange Commission (i.e., "public companies"). (3) "Interested person" of the Trust within the meaning of the Investment Company Act of 1940 (referred to as the 1940 Act), which is the principal federal law governing investment companies like the fund, as a result of position with MFS. The address of MFS is 500 Boylston Street, Boston, Massachusetts 02116. Each Trustee has been elected by shareholders and each Trustee and officer holds office until his or her successor is chosen and qualified or until his or her earlier death, resignation, retirement or removal. Messrs. Ives and Sherratt and Mses. Lane and Thomsen are members of the Trust's Audit Committee. Each of the Trust's Trustees and officers holds comparable positions with certain other funds of which MFS or a subsidiary is the investment adviser or distributor, and, in the case of the officers, with certain affiliates of MFS. As of December 31, 2004, each Trustee served as a board member of 99 funds within the MFS Family of Funds. The Trust held a shareholders' meeting in 2005, and will hold a shareholders' meeting at least once every five years thereafter, to elect Trustees. The Statement of Additional Information contains further information about the Trustees and is available without charge upon request by calling 1-800-225-2606. - ------------------------------------------------------------------------------------------------------- INVESTMENT ADVISER CUSTODIAN Massachusetts Financial Services Company State Street Bank and Trust Company 500 Boylston Street, Boston, MA 225 Franklin Street, Boston, MA 02110 02116-3741 INDEPENDENT REGISTERED PUBLIC DISTRIBUTOR ACCOUNTING FIRM MFS Fund Distributors, Inc. Ernst & Young LLP 500 Boylston Street, Boston, MA 200 Clarendon Street, Boston, MA 02116 02116-3741 PORTFOLIO MANAGER Katrina Mead BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT The Investment Company Act of 1940 requires that both the full Board of Trustees and a majority of the non-interested ("independent") Trustees, voting separately, annually approve the continuation of the Fund's investment advisory agreement with MFS. The Trustees consider matters bearing on the Fund and its advisory arrangements at their meetings throughout the year, including a review of performance data at each regular meeting. In addition, the independent Trustees met several times over the course of three months beginning in May and ending in July, 2005 ("contract review meetings") for the specific purpose of considering whether to approve the continuation of the investment advisory agreement for the Fund and the other investment companies that the Board oversees (the "MFS Funds"). The independent Trustees were assisted in their evaluation of the Fund's investment advisory agreement by independent legal counsel, from whom they received separate legal advice and with whom they met separately from MFS during various contract review meetings. The independent Trustees were also assisted in this process by the MFS Funds' Independent Chief Compliance Officer, a full-time senior officer appointed by and reporting to the independent Trustees. In connection with their deliberations regarding the continuation of the investment advisory agreement, the Trustees, including the independent Trustees, considered such information and factors as they believed, in light of the legal advice furnished to them and their own business judgment, to be relevant. The investment advisory agreement for the Fund was considered separately, although the Trustees also took into account the common interests of all MFS Funds in their review. As described below, the Trustees considered the nature, quality, and extent of the various investment advisory, administrative, and shareholder services performed by MFS under the existing investment advisory agreement and other arrangements with the Fund. In connection with their contract review meetings, the Trustees received and relied upon materials which included, among other items: (i) information provided by Lipper Inc. on the investment performance of the Fund for various time periods ended December 31, 2004 and the investment performance of a group of funds with substantially similar investment classifications/objectives (the "Lipper performance universe"), as well as the investment performance of a group of funds identified by objective criteria suggested by MFS ("peer funds"), (ii) information provided by Lipper Inc. on the Fund's advisory fees and other expenses and the advisory fees and other expenses of comparable funds identified by Lipper (the "Lipper expense group"), as well as the advisory fees and other expenses of peer funds identified by objective criteria suggested by MFS, (iii) information provided by MFS on the advisory fees of comparable portfolios of other clients of MFS, including institutional separate account and other clients, (iv) information as to whether and to what extent applicable expense waivers, reimbursements or fee "breakpoints" are observed for the Fund, (v) information regarding MFS' financial results and financial condition, including MFS' and certain of its affiliates' estimated profitability from services performed for the Fund and the MFS Funds as a whole, (vi) MFS' views regarding the outlook for the mutual fund industry and the strategic business plans of MFS, (vii) descriptions of various functions performed by MFS for the Funds, such as compliance monitoring and portfolio trading practices, and (viii) information regarding the overall organization of MFS, including information about MFS' senior management and other personnel providing investment advisory, administrative and other services to the Fund and the other MFS Funds. The comparative performance, fee and expense information prepared and provided by Lipper Inc. was not independently verified and the independent Trustees did not independently verify any information provided to them by MFS. The Trustees' conclusion as to the continuation of the investment advisory agreement was based on a comprehensive consideration of all information provided to the Trustees and not the result of any single factor. Some of the factors that figured particularly in the Trustees' deliberations are described below, although individual Trustees may have evaluated the information presented differently from one another, giving different weights to various factors. It is also important to recognize that the fee arrangements for the Fund and other MFS Funds are the result of years of review and discussion between the independent Trustees and MFS, that certain aspects of such arrangements may receive greater scrutiny in some years than others, and that the Trustees' conclusions may be based, in part, on their consideration of these same arrangements during the course of the year and in prior years. Based on information provided by Lipper Inc. and MFS, the Trustees reviewed the Fund's total return investment performance as well as the performance of peer groups of funds over various time periods. The Trustees placed particular emphasis on the total return performance of the Fund's Class A shares in comparison to the performance of funds in its Lipper performance universe over the three-year period ended December 31, 2004, which the Trustees believed was a long enough period to reflect differing market conditions. The Fund's performance was in the 51st percentile relative to the other funds in the universe for this three-year period (the 1st percentile being the best performers and the 100th percentile being the worst performers). The total return performance of the Fund's Class A shares was in the 22nd percentile for the one-year period and the 47th percentile for the five-year period ended December 31, 2004 relative to the Lipper performance universe. Because of the passage of time, these performance results are likely to differ from the performance results for more recent periods, including those shown elsewhere in this report. In the course of their deliberations, the Trustees took into account information provided by MFS in connection with the contract review meetings, as well as during investment review meetings conducted with portfolio management personnel during the course of the year regarding the Fund's performance. After reviewing these and related factors, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that they were satisfied with MFS' responses and efforts relating to investment performance. In assessing the reasonableness of the Fund's advisory fee, the Trustees considered, among other information, the Fund's advisory fee and the total expense ratio of the Fund's Class A shares as a percentage of average net assets and the advisory fee and total expense ratios of peer groups of funds based on information provided by Lipper Inc. and MFS. The Trustees considered whether the Fund was subject to any fee waivers or reductions or expense limitations. The Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate was lower than the Lipper expense group median, and the Fund's total expense ratio was the same as the Lipper expense group median. The Trustees also considered the advisory fees charged by MFS to institutional accounts. In comparing these fees, the Trustees considered information provided by MFS as to the generally broader scope of services provided by MFS to the Fund in comparison to institutional accounts, the higher demands placed on MFS' investment personnel and trading infrastructure as a result of the daily cash in-flows and out-flows of the Fund, and the impact on MFS and expenses associated with the more extensive regulatory regime to which the Fund is subject in comparison to institutional accounts. The Trustees also considered whether the Fund is likely to benefit from any economies of scale in the management of the Fund in the event of growth in assets of the Fund. They noted that the Fund's advisory fee rate schedule is currently subject to a breakpoint that reduces the Fund's advisory fee rate on net assets over $500 million. Taking into account fee waivers or reductions or expense limitations, if any, the Trustees concluded that the existing breakpoint was sufficient to allow the Fund to benefit from economies of scale as its assets grow. The Trustees also considered information prepared by MFS relating to MFS' costs and profits with respect to the Fund, the MFS Funds considered as a group, and other investment companies and accounts advised by MFS, as well as MFS' methodologies used to determine and allocate its costs to the MFS Funds, the Fund and other accounts and products for purposes of estimating profitability. After reviewing these and other factors described herein, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that the advisory fees charged to the Fund represent reasonable compensation in light of the nature and quality of the services being provided by MFS to the Fund. In addition, the Trustees considered MFS' resources and related efforts to continue to retain, attract and motivate capable personnel to serve the Fund. The Trustees also considered current and developing conditions in the financial services industry, including the entry into the industry of large and well-capitalized companies which are spending, and appear to be prepared to continue to spend, substantial sums to engage personnel and to provide services to competing investment companies. In this regard, the Trustees also considered the financial resources of MFS and its ultimate parent, Sun Life Financial Inc. The Trustees also considered the advantages and possible disadvantages to the Fund of having an adviser which also serves other investment companies as well as other accounts. The Trustees also considered the nature, quality, cost, and extent of administrative, transfer agency, and distribution services provided to the Fund by MFS and its affiliates under agreements and plans other than the investment advisory agreement, including any 12b-1 fees the Fund pays to MFS Fund Distributors, Inc., an affiliate of MFS. The Trustees also considered the nature, extent and quality of certain other services MFS performs or arranges for on the Fund's behalf, including securities lending programs, directed expense payment programs, class action recovery programs, and MFS' interaction with third-party service providers, principally custodians and sub-custodians. The Trustees concluded that the various non-advisory services provided by MFS and its affiliates on behalf of the Funds were satisfactory. The Trustees also considered benefits to MFS from the use of the Fund's portfolio brokerage commissions to pay for research and other similar services (including MFS' general policy to pay directly for third-party research), and various other factors. Additionally, the Trustees considered so-called "fall- out benefits" to MFS such as reputational value derived from serving as investment manager to the Fund. Based on their evaluation of factors that they deemed to be material, including those factors described above, the Board of Trustees, including a majority of the independent Trustees, concluded that the Fund's investment advisory agreement with MFS should be continued for an additional one-year period, commencing August 1, 2005. A discussion regarding the Board's most recent review and renewal of the Fund's investment advisory agreement will be available on or before December 1, 2005 by clicking on the fund's name under "Select a fund" on the MFS website (mfs.com). PROXY VOTING POLICIES AND INFORMATION A general description of the MFS funds' proxy voting policies and procedures is available without charge, upon request, by calling 1-800-225-2606, by visiting the Proxy Voting section of mfs.com or by visiting the SEC's Web site at http://www.sec.gov. Information regarding how the fund voted proxies relating to portfolio securities during the most recent twelve-month period ended June 30 is available without charge by visiting the Proxy Voting section of mfs.com or by visiting the SEC's Web site at http://www.sec.gov. QUARTERLY PORTFOLIO DISCLOSURE The fund will file a complete schedule of portfolio holdings with the Securities and Exchange Commission (the Commission) for the first and third quarters of each fiscal year on Form N-Q. The fund's Form N-Q may be reviewed and copied at the: Public Reference Room Securities and Exchange Commission Washington, D.C. 20549-0102 Information on the operation of the Public Reference Room may be obtained by calling the Commission at 1-800-SEC-0330. The fund's Form N-Q is available on the EDGAR database on the Commission's Internet website at http://www.sec.gov, and copies of this information may be obtained, upon payment of a duplicating fee, by electronic request at the following e-mail address: publicinfo@sec.gov or by writing the Public Reference Section at the above address. A shareholder can also obtain the quarterly portfolio holdings report at mfs.com. FEDERAL TAX INFORMATION (unaudited) In January 2006, shareholders will be mailed a Form 1099-DIV reporting the federal tax status of all distributions paid during the calendar year 2005. The fund has designated $445,683 as a capital gain dividend for the year ended August 31, 2005. CONTACT INFORMATION INVESTOR SERVICE Write to us at: MFS Service Center, Inc. P.O. Box 55824 Boston, MA 02205-5824 Type of Information Phone number Hours, Eastern Time - -------------------------------------------------------------------------------- General information 1-800-225-2606 8 a.m. to 8 p.m., any business day - -------------------------------------------------------------------------------- Speech- or hearing-impaired 1-800-637-6576 9 a.m. to 5 p.m., any business day - -------------------------------------------------------------------------------- Share prices, account 1-800-MFS-TALK balances exchanges (1-800-637-8255) 24 hours a day, 365 days a or stock and bond outlooks touch-tone required year - -------------------------------------------------------------------------------- M F S(SM) INVESTMENT MANAGEMENT(R) (C) 2005 MFS Investment Management(R) MFS(R) investment products are offered through MFS Fund Distributors, Inc., 500 Boylston Street, Boston, MA 02116. RGI-ANN-10/05 29M MFS(R) CORE GROWTH FUND 8/31/05 ANNUAL REPORT - ------------------------------------------------------------------------------- LETTER FROM THE CEO 1 - --------------------------------------------------- PORTFOLIO COMPOSITION 2 - --------------------------------------------------- MANAGEMENT REVIEW 3 - --------------------------------------------------- PERFORMANCE SUMMARY 5 - --------------------------------------------------- EXPENSE TABLE 8 - --------------------------------------------------- PORTFOLIO OF INVESTMENTS 10 - --------------------------------------------------- FINANCIAL STATEMENTS 15 - --------------------------------------------------- NOTES TO FINANCIAL STATEMENTS 25 - --------------------------------------------------- REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 34 - --------------------------------------------------- RESULTS OF SHAREHOLDER MEETING 35 - --------------------------------------------------- TRUSTEES AND OFFICERS 36 - --------------------------------------------------- BOARD REVIEW OF INVESTMENTADVISORY AGREEMENT 41 - --------------------------------------------------- PROXY VOTING POLICIES AND INFORMATION 45 - --------------------------------------------------- QUARTERLY PORTFOLIO DISCLOSURE 45 - --------------------------------------------------- FEDERAL TAX INFORMATION 45 - --------------------------------------------------- CONTACT INFORMATION BACK COVER - --------------------------------------------------- THIS REPORT HAS BEEN PREPARED FOR THE GENERAL INFORMATION TO SHAREHOLDERS. IT IS AUTHORIZED FOR DISTRIBUTION TO PROSPECTIVE INVESTORS ONLY WHEN PRECEDED OR ACCOMPANIED BY A CURRENT PROSPECTUS. M F S(SM) INVESTMENT MANAGEMENT(R) LETTER FROM THE CEO [Photo of Robert J. Manning] Dear Shareholders, Most investors are familiar with the basic principles of investing - focus on the long term and keep your assets diversified across different investment categories. Still, it is surprising how often we forget these basic lessons. Certainly, the dot-com euphoria that overtook Wall Street in the late 1990s had many people hoping they could become millionaires overnight. But the market decline that started in the spring of 2000 taught everyone how misguided those hopes had been. Now, less than five years after the market taught a harsh lesson in the follies of speculative investing, we are seeing a number of trends that suggest many investors, including professionals, are hoping for overnight miracles again. We see a steady stream of market "gurus" on television news shows, promising to teach amateur investors the strategies that will allow them to get rich quick. Hedge funds - which by their nature move in and out of investments rapidly - have soared in popularity over the past five years. We are reminded every day that we live in a "what have you done for me lately?" world, but this mindset should not influence how we invest and manage our money. In fact, investors often fall short of their goals because they trade in and out of investments too frequently and at inopportune times. Throughout our entire 80-year history, MFS' money management process has focused on long-term investment opportunities. We firmly believe that one of the best ways to realize long-term financial goals - be it a college education, a comfortable retirement, or a secure family legacy - is to follow a three-pronged approach that focuses on longer time horizons. Allocate holdings across the major asset classes - including stocks, bonds, and cash. Diversify within each class to take advantage of different market segments and investing styles. And rebalance assets regularly to maintain a desired asset allocation.* This long-term approach requires diligence and patience, two traits that in our experience are essential to capitalizing on the many opportunities the financial markets can offer. Respectfully, /s/ Robert J. Manning Robert J. Manning Chief Executive Officer and Chief Investment Officer MFS Investment Management(R) October 17, 2005 * Asset allocation, diversification, and rebalancing does not guarantee a profit or protect against a loss. The opinions expressed in this letter are those of MFS, and no forecasts can be guaranteed. PORTFOLIO COMPOSITION PORTFOLIO STRUCTURE Stocks 96.4% Cash & Other Net Assets 3.6% TOP TEN HOLDINGS Microsoft Corp. 3.5% ------------------------------------------------ Johnson & Johnson 3.0% ------------------------------------------------ General Electric Co. 2.7% ------------------------------------------------ QUALCOMM, Inc. 2.5% ------------------------------------------------ WellPoint, Inc. 2.3% ------------------------------------------------ Cisco Systems, Inc. 2.2% ------------------------------------------------ Roche Holding AG 2.2% ------------------------------------------------ Amgen, Inc. 2.2% ------------------------------------------------ SLM Corp. 2.1% ------------------------------------------------ EMC Corp. 2.1% ------------------------------------------------ SECTOR WEIGHTINGS Technology 26.9% ------------------------------------------------ Health Care 26.4% ------------------------------------------------ Consumer Staples 7.7% ------------------------------------------------ Retailing 7.4% ------------------------------------------------ Industrial Goods & Services 6.2% ------------------------------------------------ Financial Services 6.1% ------------------------------------------------ Energy 4.2% ------------------------------------------------ Utilities & Communications 2.6% ------------------------------------------------ Leisure 2.5% ------------------------------------------------ Special Products & Services 2.4% ------------------------------------------------ Basic Materials 2.2% ------------------------------------------------ Autos & Housing 1.2% ------------------------------------------------ Transportation 0.6% ------------------------------------------------ Percentages are based on net assets as of 8/31/05. The portfolio is actively managed, and current holdings may be different. MANAGEMENT REVIEW SUMMARY OF RESULTS For the twelve months ended August 31, 2005, Class A shares of the MFS Core Growth Fund provided a total return of 14.34%, at net asset value. In comparison, the fund's benchmark, the Russell 1000 Growth Index, returned 12.14%. CONTRIBUTORS TO PERFORMANCE Stock selection in the health care, technology, and retailing sectors were among the strongest contributors to performance relative to the Russell 1000 Growth Index. In health care, our underweighting in pharmaceutical company Pfizer* and owning Roche Holdings (which is not an index constituent) contributed to relative results. Also, not owning the poor-performing pharmaceutical company Merck boosted the fund's relative performance. In technology, telecom equipment company Corning and semiconductor company Marvell Technology, which is not held in the index, helped the relative performance of the fund. Stock selection in the retailing sector also enhanced the fund's relative performance. The strongest contributor in this sector was the drugstore chain CVS Corp. Stocks in other sectors that aided performance include oilfield services provider Halliburton, agricultural products and solutions provider Monsanto Co., and Latin American wireless operations company America Movil S.A. de C.V. (which is not held in the index). Avoiding mortgage financier Fannie Mae, which underperformed the overall index, also helped performance. DETRACTORS FROM PERFORMANCE Stock selection in the industrial goods sector detracted from relative performance. Our holding of manufacturing conglomerate Tyco (which is not an index constituent) was a significant detractor. Stock selection in special products and services as well as autos and housing sectors also dampened relative performance. In special products and services, consulting firm Accenture (which is not held in the index) hindered performance. In autos and housing, motorcycle maker Harley-Davidson also held back results. Although health care and technology were our top contributing sectors during the period, positioning among certain individual stocks in these sectors detracted from performance. In health care, our underweighted positions in health insurer UnitedHealth Group* and biotech firm Genentech*, and our overweighted position in biotech company Imclone* hurt relative results. In technology, our underweighted holdings in strong-performing benchmark constituents Intel and Motorola detracted from relative performance. Stocks in other sectors that dampened results include consumer products firm Avon and personal care product maker Colgate-Palmolive. The fund's cash position was also a detractor from relative performance. As with nearly all mutual funds, this portfolio holds cash to buy new holdings and to provide liquidity. In a period when equity markets rose as measured by the primary benchmark, holding cash hurt performance versus our benchmark, which has no cash position. Respectfully, Stephen Pesek Portfolio Manager Note: Effective July 1, 2005, Peggy Adams is no longer a portfolio manager of the fund. * Security was not held in the portfolio at period-end. The views expressed in this report are those of the portfolio manager only through the end of the period of the report as stated on the cover and do not necessarily reflect the views of MFS or any other person in the MFS organization. These views are subject to change at any time based on market and other conditions, and MFS disclaims any responsibility to update such views. These views may not be relied upon as investment advice or an indication of trading intent on behalf of any MFS Fund. References to specific securities are not recommendations of such securities, and may not be representative of any MFS Fund's current or future investments. PERFORMANCE SUMMARY THROUGH 8/31/05 The following chart illustrates the historical performance of the fund's original share class in comparison to its benchmark. Performance results include the deduction of the maximum applicable sales charge and reflect the percentage change in net asset value, including reinvestment of dividends and capital gains distributions. Benchmark comparisons are unmanaged and do not reflect any fees or expenses. The performance of other share classes will be greater than or less than the line shown. (See Notes to Performance Summary.) VISIT MFS.COM FOR THE MOST RECENT MONTH-END PERFORMANCE RESULTS. (FOR THE MOST RECENT MONTH-END PERFORMANCE FOR CLASS I SHARES CALL 1-888-808-6374.) MARKET VOLATILITY CAN SIGNIFICANTLY AFFECT SHORT-TERM PERFORMANCE, AND CURRENT PERFORMANCE MAY BE LOWER OR HIGHER THAN THE PERFORMANCE DATA QUOTED. THE PERFORMANCE DATA QUOTED REPRESENTS PAST PERFORMANCE, WHICH IS NO GUARANTEE OF FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE WILL FLUCTUATE, AND SHARES, WHEN REDEEMED, MAY BE WORTH MORE OR LESS THAN THEIR ORIGINAL COST. HIGH SHORT-TERM RETURNS FOR ANY PERIOD MAY BE AND LIKELY WERE ATTRIBUTABLE TO FAVORABLE MARKET CONDITIONS DURING THAT PERIOD, WHICH MAY NOT BE REPEATABLE. THE PERFORMANCE SHOWN DOES NOT REFLECT THE DEDUCTION OF TAXES, IF ANY, THAT A SHAREHOLDER WOULD PAY ON FUND DISTRIBUTIONS OR THE REDEMPTION OF FUND SHARES. GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT (For the period from the commencement of the fund's investment operations, January 2, 1996, through August 31, 2005. Index information is from January 1, 1996.) MFS Core Growth Russell 1000 Fund - Class A Growth Index 1/96 $ 9,425 $10,000 8/96 11,621 10,823 8/97 16,876 15,084 8/98 18,353 16,329 8/99 28,323 24,221 8/00 42,876 32,325 8/01 27,198 17,674 8/02 21,288 13,756 8/03 23,204 15,692 8/04 23,688 16,532 8/05 27,085 18,540 TOTAL RATES OF RETURN THROUGH 8/31/05 AVERAGE ANNUAL WITHOUT SALES CHARGE Share class Class inception date 1-yr 5-yr Life* - ------------------------------------------------------------------------------ A 1/02/96 14.34% -8.78% 11.54% - ------------------------------------------------------------------------------ B 12/31/99 13.57% -9.36% 11.13% - ------------------------------------------------------------------------------ C 12/31/99 13.50% -9.38% 11.13% - ------------------------------------------------------------------------------ I 1/02/97 14.69% -8.47% 11.79% - ------------------------------------------------------------------------------ R** 12/31/02 14.16% -8.83% 11.51% - ------------------------------------------------------------------------------ R1 4/01/05 13.93% -8.84% 11.50% - ------------------------------------------------------------------------------ R2 4/01/05 14.07% -8.82% 11.52% - ------------------------------------------------------------------------------ R3** 10/31/03 13.84% -8.91% 11.46% - ------------------------------------------------------------------------------ R4 4/01/05 14.28% -8.79% 11.54% - ------------------------------------------------------------------------------ R5 4/01/05 14.41% -8.77% 11.55% - ------------------------------------------------------------------------------ AVERAGE ANNUAL Comparative benchmarks - ------------------------------------------------------------------------------ Average large-cap growth fund+ 13.74% -9.20% 6.38% - ------------------------------------------------------------------------------ Russell 1000 Growth Index# 12.14% -10.52% 6.59% - ------------------------------------------------------------------------------ AVERAGE ANNUAL WITH SALES CHARGE Share class - ------------------------------------------------------------------------------ A 7.77% -9.85% 10.86% - ------------------------------------------------------------------------------ B 9.57% -9.71% 11.13% - ------------------------------------------------------------------------------ C 12.50% -9.38% 11.13% - ------------------------------------------------------------------------------ Class I, R, R1, R2, R3, R4, and R5 shares do not have a sales charge. Please see Notes to Performance Summary for more details. * For the period from the commencement of the fund's investment operations, January 2, 1996, through August 31, 2005. Index information is from January 1, 1996. ** Effective April 1, 2005, Class R1 shares have been renamed "Class R shares" and Class R2 shares have been renamed "Class R3 shares." + Source: Lipper Inc., an independent firm that reports mutual fund performance. # Source: Standard & Poor's Micropal, Inc. INDEX DEFINITION Russell 1000 Growth Index - is constructed to provide a comprehensive barometer for growth securities in the large-cap segment of the U.S. equity universe. Companies in this index generally have higher price-to-book ratios and higher forecasted growth values. It is not possible to invest directly in an index. NOTES TO PERFORMANCE Class A results including sales charge reflect the deduction of the maximum 5.75% sales charge. Class B results including sales charge reflect the deduction of the applicable contingent deferred sales charge (CDSC), which declines over six years from 4% to 0%. Class C results including sales charge (assuming redemption within one year from the end of the prior month of purchase) reflect the deduction of the 1% CDSC. Class R shares have no initial sales charge or CDSC and are available only to existing Class R shareholders. Class I, R1, R2, R3, R4, and R5 shares have no initial sales charge or CDSC. Class I shares are only available to certain eligible investors, and Class R1, R2, R3, R4, and R5 shares are only available to certain retirement plans. Performance for share classes offered after Class A shares includes the performance of the fund's Class A shares for periods prior to their offering. This blended class performance has been adjusted to take into account differences in sales loads, if any, applicable to these share classes, but has not been adjusted to take into account differences in class specific operating expenses (such as Rule 12b-1 fees). Compared to performance these share classes would have experienced had they been offered for the entire period, the use of blended performance generally results in higher performance for share classes with higher operating expenses than the share class to which it is blended, and lower performance for share classes with lower operating expenses than the share class to which it is blended. Performance results reflect any applicable expense subsidies and waivers in effect during the periods shown. Without such subsidies and waivers the fund's performance results would be less favorable. Please see the prospectus and financial statements for complete details. The performance shown reflects a non-recurring accrual made to the fund on July 28, 2004, relating to MFS' revenue sharing settlement with the Securities and Exchange Commission, without which the performance would have been lower. For example, the impact on the Fund's performance (not including sales charge) for the one-year period through the date shown would have been lower by approximately 0.10%. The proceeds were paid to the fund on February 16, 2005. From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. EXPENSE TABLE FUND EXPENSES BORNE BY THE SHAREHOLDERS DURING THE PERIOD, MARCH 1, 2005 THROUGH AUGUST 31, 2005. As a shareholder of the fund, you incur two types of costs: (1) transaction costs, including sales charges (loads) on certain purchase or redemption payments and redemption fees on certain exchanges and redemptions, and (2) ongoing costs, including management fees; distribution and service (12b-1) fees; and other fund expenses. This example is intended to help you understand your ongoing costs (in dollars) of investing in the fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 invested at the beginning of the period and held for the entire period March 1, 2005 through August 31, 2005. ACTUAL EXPENSES The first line for each share class in the table below provides information about actual account values and actual expenses. You may use the information in this line, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading entitled "Expenses Paid During Period" to estimate the expenses you paid on your account during this period. HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES The second line for each share class in the table below provides information about hypothetical account values and hypothetical expenses based on the fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as sales charges (loads) or redemption fees. Therefore, the second line for each share class in the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher. - -------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period** Expense Account Value Account Value 3/01/05- Share Class Ratio 3/01/05 8/31/05 8/31/05 - -------------------------------------------------------------------------------- Actual 1.35% $1,000.00 $1,043.40 $6.95 A --------------------------------------------------------------------- Hypothetical* 1.35% $1,000.00 $1,018.40 $6.87 - -------------------------------------------------------------------------------- Actual 2.00% $1,000.00 $1,040.40 $10.29 B ---------------------------------------------------------------------- Hypothetical* 2.00% $1,000.00 $1,015.12 $10.16 - -------------------------------------------------------------------------------- Actual 2.01% $1,000.00 $1,039.70 $10.33 C --------------------------------------------------------------------- Hypothetical* 2.01% $1,000.00 $1,015.07 $10.21 - -------------------------------------------------------------------------------- Actual 0.99% $1,000.00 $1,045.00 $5.10 I --------------------------------------------------------------------- Hypothetical* 0.99% $1,000.00 $1,020.21 $5.04 - -------------------------------------------------------------------------------- R Actual 1.51% $1,000.00 $1,042.90 $7.78 (formerly --------------------------------------------------------------------- R1) Hypothetical* 1.51% $1,000.00 $1,017.59 $7.68 - -------------------------------------------------------------------------------- Actual 2.26% $1,000.00 $1,039.60 $11.62 R1 --------------------------------------------------------------------- Hypothetical* 2.26% $1,000.00 $1,013.81 $11.47 - -------------------------------------------------------------------------------- Actual 1.95% $1,000.00 $1,040.90 $10.03 R2 --------------------------------------------------------------------- Hypothetical* 1.95% $1,000.00 $1,015.38 $9.91 - -------------------------------------------------------------------------------- R3 Actual 1.78% $1,000.00 $1,041.10 $9.16 (formerly --------------------------------------------------------------------- R2) Hypothetical* 1.78% $1,000.00 $1,016.23 $9.05 - -------------------------------------------------------------------------------- Actual 1.47% $1,000.00 $1,042.80 $7.57 R4 --------------------------------------------------------------------- Hypothetical* 1.47% $1,000.00 $1,017.80 $7.48 - -------------------------------------------------------------------------------- Actual 1.17% $1,000.00 $1,044.00 $6.03 R5 --------------------------------------------------------------------- Hypothetical* 1.17% $1,000.00 $1,019.31 $5.96 - -------------------------------------------------------------------------------- * 5% class return per year before expenses. ** Expenses paid is equal to each class' annualized expense ratio, as shown above, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year. Expenses paid do not include any applicable sales charges (loads) or redemption fees. If these transaction costs had been included, your costs would have been higher. PORTFOLIO OF INVESTMENTS - 8/31/05 The Portfolio of Investments is a complete list of all securities owned by yourfund. It is categorized by broad-based asset classes. Stocks - 96.4% - --------------------------------------------------------------------------------------------------- ISSUER SHARES $ VALUE - --------------------------------------------------------------------------------------------------- Aerospace - 1.8% - --------------------------------------------------------------------------------------------------- Northrop Grumman Corp.^ 60,700 $ 3,404,663 United Technologies Corp. 257,200 12,860,000 -------------- $ 16,264,663 - --------------------------------------------------------------------------------------------------- Alcoholic Beverages - 0.3% - --------------------------------------------------------------------------------------------------- Pernod Ricard 14,000 $ 2,428,174 - --------------------------------------------------------------------------------------------------- Apparel Manufacturers - 0.7% - --------------------------------------------------------------------------------------------------- Nike, Inc., "B" 87,300 $ 6,888,843 - --------------------------------------------------------------------------------------------------- Automotive - 0.4% - --------------------------------------------------------------------------------------------------- Harley-Davidson, Inc.^ 84,160 $ 4,145,722 - --------------------------------------------------------------------------------------------------- Banks & Credit Companies - 3.3% - --------------------------------------------------------------------------------------------------- American Express Co.^ 60,680 $ 3,351,963 Countrywide Financial Corp. 54,580 1,844,258 SLM Corp.^ 398,100 19,805,475 UBS AG 67,874 5,569,228 -------------- $ 30,570,924 - --------------------------------------------------------------------------------------------------- Biotechnology - 4.7% - --------------------------------------------------------------------------------------------------- Amgen, Inc.* 256,340 $ 20,481,566 Genzyme Corp.^* 112,530 8,008,760 Gilead Sciences, Inc.* 358,270 15,405,610 -------------- $ 43,895,936 - --------------------------------------------------------------------------------------------------- Broadcast & Cable TV - 0.4% - --------------------------------------------------------------------------------------------------- Grupo Televisa S.A., ADR^ 50,500 $ 3,171,400 News Corp., "A" 55,200 894,792 -------------- $ 4,066,192 - --------------------------------------------------------------------------------------------------- Brokerage & Asset Managers - 1.4% - --------------------------------------------------------------------------------------------------- Chicago Mercantile Exchange Holdings, Inc.^ 12,500 $ 3,470,000 Goldman Sachs Group, Inc.^ 87,040 9,677,107 -------------- $ 13,147,107 - --------------------------------------------------------------------------------------------------- Business Services - 1.6% - --------------------------------------------------------------------------------------------------- Accenture Ltd., "A"^* 194,850 $ 4,754,340 Amdocs Ltd.^* 353,100 10,363,485 -------------- $ 15,117,825 - --------------------------------------------------------------------------------------------------- Chemicals - 0.7% - --------------------------------------------------------------------------------------------------- 3M Co.^ 61,100 $ 4,347,265 Monsanto Co. 37,240 2,377,402 -------------- $ 6,724,667 - --------------------------------------------------------------------------------------------------- Computer Software - 7.6% - --------------------------------------------------------------------------------------------------- Adobe Systems, Inc.^ 214,000 $ 5,786,560 Mercury Interactive Corp.^* 48,880 1,792,430 Microsoft Corp. 1,172,990 32,139,926 NAVTEQ Corp.^* 61,900 2,880,826 Oracle Corp.* 1,342,710 17,414,949 Symantec Corp.^* 494,401 10,372,533 -------------- $ 70,387,224 - --------------------------------------------------------------------------------------------------- Computer Software - Systems - 2.8% - --------------------------------------------------------------------------------------------------- Apple Computer, Inc.^* 244,700 $ 11,483,771 Dell, Inc.^* 399,900 14,236,440 -------------- $ 25,720,211 - --------------------------------------------------------------------------------------------------- Consumer Goods & Services - 4.9% - --------------------------------------------------------------------------------------------------- Apollo Group, Inc., "A"^* 89,600 $ 7,047,936 Avon Products, Inc. 103,110 3,384,070 Colgate-Palmolive Co. 267,300 14,033,250 Gillette Co. 57,900 3,119,073 Procter & Gamble Co.^ 219,490 12,177,305 Reckitt Benckiser PLC 175,800 5,464,465 -------------- $ 45,226,099 - --------------------------------------------------------------------------------------------------- Electrical Equipment - 4.0% - --------------------------------------------------------------------------------------------------- Danaher Corp.^ 43,400 $ 2,324,504 General Electric Co. 740,200 24,878,122 Tyco International Ltd.^ 358,600 9,979,838 -------------- $ 37,182,464 - --------------------------------------------------------------------------------------------------- Electronics - 5.5% - --------------------------------------------------------------------------------------------------- Analog Devices, Inc.^ 63,980 $ 2,332,071 Applied Materials, Inc.^ 179,900 3,293,969 Intel Corp. 215,000 5,529,800 Marvell Technology Group Ltd.^* 109,142 5,150,411 Samsung Electronics Co. Ltd. 17,230 9,087,314 SanDisk Corp.^* 154,300 5,991,469 Texas Instruments, Inc.^ 360,640 11,785,715 Xilinx, Inc.^ 289,000 8,118,010 -------------- $ 51,288,759 - --------------------------------------------------------------------------------------------------- Energy - Independent - 0.2% - --------------------------------------------------------------------------------------------------- EOG Resources, Inc.^ 25,400 $ 1,621,282 - --------------------------------------------------------------------------------------------------- Energy - Integrated - 0.8% - --------------------------------------------------------------------------------------------------- Amerada Hess Corp.^ 56,600 $ 7,193,860 - --------------------------------------------------------------------------------------------------- Food & Drug Stores - 1.2% - --------------------------------------------------------------------------------------------------- CVS Corp. 386,240 $ 11,343,869 - --------------------------------------------------------------------------------------------------- Food & Non-Alcoholic Beverages - 3.3% - --------------------------------------------------------------------------------------------------- Cadbury Schweppes PLC 95,600 $ 946,520 Coca-Cola Co.^ 110,800 4,875,200 Kellogg Co.^ 236,200 10,706,946 Nestle S.A 8,471 2,380,419 PepsiCo, Inc. 216,920 11,898,062 -------------- $ 30,807,147 - --------------------------------------------------------------------------------------------------- Furniture & Appliances - 0.8% - --------------------------------------------------------------------------------------------------- Harman International Industries, Inc. 73,600 $ 7,610,240 - --------------------------------------------------------------------------------------------------- Gaming & Lodging - 0.8% - --------------------------------------------------------------------------------------------------- Carnival Corp. 55,610 $ 2,743,797 Harrah's Entertainment, Inc.^ 19,500 1,356,420 Hilton Group PLC 561,400 3,199,411 -------------- $ 7,299,628 - --------------------------------------------------------------------------------------------------- General Merchandise - 3.1% - --------------------------------------------------------------------------------------------------- Kohl's Corp.^* 127,860 $ 6,706,257 Target Corp. 150,060 8,065,725 Wal-Mart Stores, Inc.^ 301,290 13,545,998 -------------- $ 28,317,980 - --------------------------------------------------------------------------------------------------- Health Maintenance Organizations - 2.3% - --------------------------------------------------------------------------------------------------- WellPoint, Inc.^* 288,260 $ 21,403,305 - --------------------------------------------------------------------------------------------------- Insurance - 1.4% - --------------------------------------------------------------------------------------------------- AFLAC, Inc. 21,100 $ 911,942 American International Group, Inc.^ 201,500 11,928,800 -------------- $ 12,840,742 - --------------------------------------------------------------------------------------------------- Internet - 1.8% - --------------------------------------------------------------------------------------------------- eBay, Inc.* 70,220 $ 2,843,208 Google, Inc., "A"^* 28,205 8,066,630 Yahoo!, Inc.^* 168,810 5,628,125 -------------- $ 16,537,963 - --------------------------------------------------------------------------------------------------- Leisure & Toys - 1.0% - --------------------------------------------------------------------------------------------------- Electronic Arts, Inc.^* 157,230 $ 9,006,134 - --------------------------------------------------------------------------------------------------- Machinery & Tools - 0.4% - --------------------------------------------------------------------------------------------------- Caterpillar, Inc. 59,900 $ 3,323,851 - --------------------------------------------------------------------------------------------------- Medical & Health Technology & Services - 0.8% - --------------------------------------------------------------------------------------------------- Caremark Rx, Inc.* 129,600 $ 6,056,208 Cerner Corp.^* 13,400 1,055,384 -------------- $ 7,111,592 - --------------------------------------------------------------------------------------------------- Medical Equipment - 6.6% - --------------------------------------------------------------------------------------------------- Alcon, Inc.^ 42,200 $ 4,981,710 DENTSPLY International, Inc. 12,100 640,937 Fisher Scientific International, Inc.^* 175,040 11,286,579 Medtronic, Inc. 277,760 15,832,320 St. Jude Medical, Inc.* 286,600 13,154,940 Varian Medical Systems, Inc.^* 60,100 2,393,182 Zimmer Holdings, Inc.^* 155,100 12,744,567 -------------- $ 61,034,235 - --------------------------------------------------------------------------------------------------- Network & Telecom - 7.0% - --------------------------------------------------------------------------------------------------- Cisco Systems, Inc.* 1,174,330 $ 20,691,695 Corning, Inc.* 837,820 16,722,887 Motorola, Inc.^ 160,600 3,513,928 Nokia Oyj 91,900 1,445,753 QUALCOMM, Inc.^ 575,860 22,867,401 -------------- $ 65,241,664 - --------------------------------------------------------------------------------------------------- Oil Services - 3.2% - --------------------------------------------------------------------------------------------------- GlobalSantaFe Corp.^ 126,810 $ 5,944,853 Halliburton Co. 229,220 14,204,763 National Oilwell Varco, Inc.* 50,000 3,210,500 Noble Corp.^ 83,700 5,967,810 -------------- $ 29,327,926 - --------------------------------------------------------------------------------------------------- Personal Computers & Peripherals - 2.2% - --------------------------------------------------------------------------------------------------- EMC Corp.* 1,490,050 $ 19,162,043 Network Appliance, Inc.^* 38,720 919,213 -------------- $ 20,081,256 - --------------------------------------------------------------------------------------------------- Pharmaceuticals - 12.0% - --------------------------------------------------------------------------------------------------- Abbott Laboratories 288,300 $ 13,010,979 Allergan, Inc.^ 9,900 911,295 Eli Lilly & Co. 239,160 13,158,583 Johnson & Johnson^ 445,820 28,260,530 Roche Holding AG 148,200 20,532,731 Sanofi-Aventis^ 64,700 5,547,978 Teva Pharmaceutical Industries Ltd., ADR^ 368,900 11,967,116 Wyeth^ 383,090 17,541,691 -------------- $ 110,930,903 - --------------------------------------------------------------------------------------------------- Printing & Publishing - 0.3% - --------------------------------------------------------------------------------------------------- McGraw-Hill Cos., Inc.^ 59,000 $ 2,844,980 - --------------------------------------------------------------------------------------------------- Specialty Chemicals - 1.5% - --------------------------------------------------------------------------------------------------- Praxair, Inc.^ 287,200 $ 13,871,760 - --------------------------------------------------------------------------------------------------- Specialty Stores - 2.4% - --------------------------------------------------------------------------------------------------- Best Buy Co., Inc.^ 40,000 $ 1,906,400 Lowe's Cos., Inc.^ 175,560 11,290,264 PETsMART, Inc.^ 182,980 4,715,395 Staples, Inc. 213,700 4,692,853 -------------- $ 22,604,912 - --------------------------------------------------------------------------------------------------- Telecommunications - Wireless - 1.1% - --------------------------------------------------------------------------------------------------- America Movil S.A. de C.V., ADR, "L" 465,100 $ 10,232,200 - --------------------------------------------------------------------------------------------------- Telephone Services - 1.1% - --------------------------------------------------------------------------------------------------- Sprint Nextel Corp.^ 389,350 $ 10,095,846 - --------------------------------------------------------------------------------------------------- Trucking - 0.6% - --------------------------------------------------------------------------------------------------- FedEx Corp. 67,560 $ 5,502,086 - --------------------------------------------------------------------------------------------------- Utilities - Electric Power - 0.4% - --------------------------------------------------------------------------------------------------- AES Corp.^* 250,000 $ 3,935,000 - --------------------------------------------------------------------------------------------------- Total Stocks (Identified Cost, $843,006,264) $ 893,175,171 - --------------------------------------------------------------------------------------------------- Collateral for Securities Loaned - 21.6% - --------------------------------------------------------------------------------------------------- Navigator Securities Lending Prime Portfolio, at Cost and Net Asset Value 200,568,378 $ 200,568,378 - --------------------------------------------------------------------------------------------------- Repurchase Agreement - 1.8% - --------------------------------------------------------------------------------------------------- ISSUER PAR AMOUNT $ VALUE - --------------------------------------------------------------------------------------------------- Morgan Stanley, 3.58%, dated 8/31/05, due 9/01/05, total to be received $16,639,655 (secured by various U.S. Treasury and Federal Agency obligations in a jointly traded account), at Cost $ 16,638,000 $ 16,638,000 - --------------------------------------------------------------------------------------------------- Total Investments (Identified Cost, $1,060,212,642)(+) $1,110,381,549 - --------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - (19.8)% (183,359,062) - --------------------------------------------------------------------------------------------------- Net Assets - 100.0% $ 927,022,487 - --------------------------------------------------------------------------------------------------- (+) As of August 31, 2005, the fund had eight securities representing $51,793,400 and 5.6% of net assets that were fair valued in accordance with the policies adopted by the Board of Trustees. * Non-income producing security. ^ All or a portion of this security is on loan. Abbreviations: ADR = American Depository Receipt SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statement of Assets and Liabilities This statement represents your fund's balance sheet, which details the assets and liabilities composing the total value of the fund. AT 8/31/05 ASSETS - ------------------------------------------------------------------------------------------------------- Investments, at value, including $196,110,739 of securities on loan (identified cost, $1,060,212,642) $1,110,381,549 Cash 478 Receivable for investments sold 30,424,779 Receivable for fund shares sold 550,375 Interest and dividends receivable 1,050,179 Other assets 4,271 - ------------------------------------------------------------------------------------------------------- Total assets $1,142,411,631 - ------------------------------------------------------------------------------------------------------- LIABILITIES - ------------------------------------------------------------------------------------------------------- Payable for investments purchased $11,653,087 Payable for fund shares reacquired 2,347,018 Collateral for securities loaned, at value 200,568,378 Payable to affiliates Management fee 16,318 Shareholder servicing costs 324,065 Distribution and service fees 13,794 Administrative services fee 296 Retirement plan administration and services fees 12 Accrued expenses and other liabilities 466,176 - ------------------------------------------------------------------------------------------------------- Total liabilities $215,389,144 - ------------------------------------------------------------------------------------------------------- Net assets $927,022,487 - ------------------------------------------------------------------------------------------------------- NET ASSETS CONSIST OF: - ------------------------------------------------------------------------------------------------------- Paid-in capital $1,202,048,936 Unrealized appreciation (depreciation) on investments and translation of assets and liabilities in foreign currencies 50,156,599 Accumulated net realized gain (loss) on investments and foreign currency transactions (325,139,337) Accumulated net investment loss (43,711) - ------------------------------------------------------------------------------------------------------- Net assets $927,022,487 - ------------------------------------------------------------------------------------------------------- Shares of beneficial interest outstanding 55,725,377 - ------------------------------------------------------------------------------------------------------- Class A shares - ------------------------------------------------------------------------------------------------------- Net assets $632,209,426 Shares outstanding 37,592,131 - ------------------------------------------------------------------------------------------------------- Net asset value per share $16.82 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25X$16.82) $17.85 - ------------------------------------------------------------------------------------------------------- Class B shares - ------------------------------------------------------------------------------------------------------- Net assets $201,513,122 Shares outstanding 12,412,200 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $16.24 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class C shares - ------------------------------------------------------------------------------------------------------- Net assets $82,182,342 Shares outstanding 5,062,367 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $16.23 - ------------------------------------------------------------------------------------------------------- Class I shares - ------------------------------------------------------------------------------------------------------- Net assets $3,816,248 Shares outstanding 222,080 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $17.18 - ------------------------------------------------------------------------------------------------------- Class R shares (formerly Class R1) - ------------------------------------------------------------------------------------------------------- Net assets $5,904,404 Shares outstanding 352,129 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $16.77 - ------------------------------------------------------------------------------------------------------- Class R1 shares - ------------------------------------------------------------------------------------------------------- Net assets $79,808 Shares outstanding 4,918 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $16.23 - ------------------------------------------------------------------------------------------------------- Class R2 shares - ------------------------------------------------------------------------------------------------------- Net assets $436,678 Shares outstanding 26,879 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $16.25 - ------------------------------------------------------------------------------------------------------- Class R3 shares (formerly Class R2) - ------------------------------------------------------------------------------------------------------- Net assets $774,330 Shares outstanding 46,365 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $16.70 - ------------------------------------------------------------------------------------------------------- Class R4 shares - ------------------------------------------------------------------------------------------------------- Net assets $53,031 Shares outstanding 3,154 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $16.81 - ------------------------------------------------------------------------------------------------------- Class R5 shares - ------------------------------------------------------------------------------------------------------- Net assets $53,098 Shares outstanding 3,154 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $16.83 - ------------------------------------------------------------------------------------------------------- Shares outstanding are rounded for presentation purposes. On sales of $50,000 or more, the offering price of Class A shares is reduced. A contingent deferred sales charge may be imposed on redemptions of Class A, Class B, and Class C shares. SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statement of Operations This statement describes how much your fund received in investment income and paid in expenses. It also describes any gains and/or losses generated by fund operations. YEAR ENDED 8/31/05 NET INVESTMENT LOSS - ------------------------------------------------------------------------------------------------------- Income Dividends $7,962,439 Interest 624,894 Foreign taxes withheld (57,138) - ------------------------------------------------------------------------------------------------------- Total investment income $8,530,195 - ------------------------------------------------------------------------------------------------------- Expenses Management fee $5,346,780 Distribution and service fees 4,049,123 Shareholder servicing costs 1,188,243 Administrative services fee 74,091 Retirement plan administration and services fees 716 Trustees' compensation 39,284 Custodian fee 228,183 Printing 126,150 Postage 71,038 Auditing fees 29,124 Legal fees 46,209 Shareholder solicitation expenses 99,586 Miscellaneous 127,224 - ------------------------------------------------------------------------------------------------------- Total expenses $11,425,751 - ------------------------------------------------------------------------------------------------------- Fees paid indirectly (75,961) Reduction of expenses by investment adviser (714,737) - ------------------------------------------------------------------------------------------------------- Net expenses $10,635,053 - ------------------------------------------------------------------------------------------------------- Net investment loss $(2,104,858) - ------------------------------------------------------------------------------------------------------- REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS - ------------------------------------------------------------------------------------------------------- Realized gain (loss) (identified cost basis) Investment transactions $152,652,182 Foreign currency transactions (131,323) - ------------------------------------------------------------------------------------------------------- Net realized gain (loss) on investments and foreign currency transactions $152,520,859 - ------------------------------------------------------------------------------------------------------- Change in unrealized appreciation (depreciation) Investments $(56,252,391) Translation of assets and liabilities in foreign currencies (12,345) - ------------------------------------------------------------------------------------------------------- Net unrealized gain (loss) on investments and foreign currency translation $(56,264,736) - ------------------------------------------------------------------------------------------------------- Net realized and unrealized gain (loss) on investments and foreign currency $96,256,123 - ------------------------------------------------------------------------------------------------------- Change in net assets from operations $94,151,265 - ------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statements of Changes in Net Assets This statement describes the increases and/or decreases in net assets resulting from operations, any distributions, and any shareholder transactions. FOR YEARS ENDED 8/31 2005 2004 CHANGE IN NET ASSETS - ------------------------------------------------------------------------------------------------------- FROM OPERATIONS - ------------------------------------------------------------------------------------------------------- Net investment loss $(2,104,858) $(5,201,107) Net realized gain (loss) on investments and foreign currency transactions 152,520,859 69,898,609 Net unrealized gain (loss) on investments and foreign currency translation (56,264,736) (47,792,510) - ------------------------------------------------------------------------------------------------------- Change in net assets from operations $94,151,265 $16,904,992 - ------------------------------------------------------------------------------------------------------- Change in net assets from fund share transactions $191,397,865 $(144,281,991) - ------------------------------------------------------------------------------------------------------- Redemption fees $3,489 $1,504 - ------------------------------------------------------------------------------------------------------- Total change in net assets $285,552,619 $(127,375,495) - ------------------------------------------------------------------------------------------------------- NET ASSETS - ------------------------------------------------------------------------------------------------------- At beginning of period $641,469,868 $768,845,363 At end of period (including accumulated net investment loss of $43,711 and $34,107, respectively) $927,022,487 $641,469,868 - ------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Financial Highlights The financial highlights table is intended to help you understand the fund's financial performance for the past 5 years (or, if shorter, the period of the fund's operation). Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund (assuming reinvestment of all distributions) held for the entire period. This information has been audited by the fund's independent registered public accounting firm, whose report, together with the fund's financial statements, are included in this report. CLASS A YEARS ENDED 8/31 ------------------------------------------------------------------------------------ 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $14.71 $14.41 $13.22 $16.89 $27.51 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.01) $(0.07) $(0.07) $(0.12) $(0.11) Net realized and unrealized gain (loss) on investments and foreign currency 2.12 0.37 1.26 (3.55) (9.73) - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.11 $0.30 $1.19 $(3.67) $(9.84) - ---------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $-- $-- $-- $-- $(0.78) - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.82 $14.71 $14.41 $13.22 $16.89 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 14.34*** 2.08***+ 9.00 (21.73) (36.57)*** - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.38 1.41 1.42 1.43 1.57 Expenses after expense reductions## 1.28 1.36 1.42 1.47^^ 1.52 Net investment loss (0.08) (0.47) (0.52) (0.76) (0.56) Portfolio turnover (%) 184 261 312 257 283 Net assets at end of period (000 Omitted) $632,209 $404,511 $496,271 $417,986 $111,062 - ---------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS B YEARS ENDED 8/31 ----------------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $14.30 $14.09 $13.01 $16.72 $27.41 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.11) $(0.16) $(0.15) $(0.22) $(0.23) Net realized and unrealized gain (loss) on investments and foreign currency 2.05 0.37 1.23 (3.49) (9.70) - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $1.94 $0.21 $1.08 $(3.71) $(9.93) - ---------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $-- $-- $-- $-- $(0.76) - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.24 $14.30 $14.09 $13.01 $16.72 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 13.57*** 1.49***+ 8.22 (22.13) (37.01)*** - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.03 2.05 2.07 2.08 2.22 Expenses after expense reductions## 1.93 2.00 2.07 2.12^^ 2.17 Net investment loss (0.73) (1.11) (1.18) (1.41) (1.20) Portfolio turnover (%) 184 261 312 257 283 Net assets at end of period (000 Omitted) $201,513 $138,226 $155,602 $114,619 $68,839 - ---------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS C YEARS ENDED 8/31 -------------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $14.30 $14.10 $13.02 $16.73 $27.43 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.11) $(0.16) $(0.15) $(0.22) $(0.23) Net realized and unrealized gain (loss) on investments and foreign currency 2.04 0.36 1.23 (3.49) (9.70) - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $1.93 $0.20 $1.08 $(3.71) $(9.93) - ---------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $-- $-- $-- $-- $(0.77) - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.23 $14.30 $14.10 $13.02 $16.73 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 13.50*** 1.42***+ 8.29 (22.18) (36.99)*** - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.03 2.05 2.07 2.08 2.22 Expenses after expense reductions## 1.93 2.00 2.07 2.12^^ 2.17 Net investment loss (0.69) (1.12) (1.18) (1.41) (1.20) Portfolio turnover (%) 184 261 312 257 283 Net assets at end of period (000 Omitted) $82,182 $91,225 $110,786 $82,441 $45,879 - ---------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS I YEARS ENDED 8/31 ------------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $14.98 $14.63 $13.37 $17.01 $27.63 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment income (loss) $0.05 $(0.02) $(0.02) $(0.06) $(0.03) Net realized and unrealized gain (loss) on investments and foreign currency 2.15 0.37 1.28 (3.58) (9.80) - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.20 $0.35 $1.26 $(3.64) $(9.83) - ---------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $-- $-- $-- $-- $(0.79) - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $17.18 $14.98 $14.63 $13.37 $17.01 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)& 14.69*** 2.39***+ 9.42 (21.40) (36.39)*** - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.02 1.06 1.07 1.08 1.20 Expenses after expense reductions## 0.92 1.01 1.07 1.12^^ 1.15 Net investment income (loss) 0.32 (0.11) (0.16) (0.39) (0.14) Portfolio turnover (%) 184 261 312 257 283 Net assets at end of period (000 Omitted) $3,816 $4,136 $4,317 $4,403 $7,381 - ---------------------------------------------------------------------------------------------------------------------------- CLASS R (FORMERLY CLASS R1) YEARS ENDED 8/31 ----------------------------------------------------- 2005= 2004= 2003** Net asset value, beginning of period $14.69 $14.41 $12.35 - ---------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.04) $(0.09) $(0.08) Net realized and unrealized gain on investments and foreign currency 2.12 0.37 2.14^ - ---------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.08 $0.28 $2.06 - ---------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.77 $14.69 $14.41 - ---------------------------------------------------------------------------------------------------------------------- Total return (%)& 14.16*** 1.94***+ 16.68++ - ---------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.54 1.56 1.65+ Expenses after expense reductions## 1.44 1.51 1.65+ Net investment loss (0.25) (0.60) (0.82)+ Portfolio turnover (%) 184 261 312 Net assets at end of period (000 Omitted) $5,904 $3,266 $1,869 - ---------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R1 CLASS R2 YEAR ENDED YEAR ENDED 8/31/05** 8/31/05** Net asset value, beginning of period $15.35 $15.35 - ------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ------------------------------------------------------------------------------------------------------- Net investment loss $(0.08) $(0.04) Net realized and unrealized gain on investments and foreign currency 0.96^ 0.94^ - ------------------------------------------------------------------------------------------------------- Total from investment operations $0.88 $0.90 - ------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.23 $16.25 - ------------------------------------------------------------------------------------------------------- Total return (%)&*** 5.73++ 5.86++ - ------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.35+ 2.04+ Expenses after expense reductions## 2.25+ 1.94+ Net investment loss (1.21)+ (0.67)+ Portfolio turnover (%) 184 184 Net assets at end of period (000 Omitted) $80 $437 - ------------------------------------------------------------------------------------------------------- CLASS R3 (FORMERLY CLASS R2) YEARS ENDED 8/31 -------------------------------- 2005= 2004=** Net asset value, beginning of period $14.67 $14.63### - ---------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------- Net investment loss $(0.06) $(0.06) Net realized and unrealized gain on investments and foreign currency 2.09 0.10^ - ---------------------------------------------------------------------------------------------------------- Total from investment operations $2.03 $0.04 - ---------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.70 $14.67 - ---------------------------------------------------------------------------------------------------------- Total return (%)&*** 13.84 0.27###+++ - ---------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.82 1.95+ Expenses after expense reductions## 1.72 1.90+ Net investment loss (0.48) (0.48)+ Portfolio turnover (%) 184 261 Net assets at end of period (000 Omitted) $774 $105 - ---------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R4 CLASS R5 YEAR ENDED YEAR ENDED 8/31/05** 8/31/05** Net asset value, beginning of period $15.85 $15.85 - ------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ------------------------------------------------------------------------------------------------------- Net investment loss $(0.03) $(0.01) Net realized and unrealized gain on investments and foreign currency 0.99^ 0.99^ - ------------------------------------------------------------------------------------------------------- Total from investment operations $0.96 $0.98 - ------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.81 $16.83 - ------------------------------------------------------------------------------------------------------- Total return (%)&*** 6.06++ 6.18++ - ------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.56+ 1.26+ Expenses after expense reductions## 1.46+ 1.16+ Net investment loss (0.41)+ (0.11)+ Portfolio turnover (%) 184 184 Net assets at end of period (000 Omitted) $53 $53 - ------------------------------------------------------------------------------------------------------- ** For the period from the class' inception, December 31, 2002 (Class R), October 31, 2003 (Class R3) and April 1, 2005 (Classes R1, R2, R4, and R5) through the stated period end. *** Certain expenses have been reduced without which performance would have been lower. + Annualized. ++ Not annualized. # Per share data are based on average shares outstanding. ## Ratios do not reflect reductions from fees paid indirectly. ### The net asset value and total return previously reported as $14.64 and 0.20% (Class R3), have been revised to reflect the net asset value from the day prior to the class' inception date. The net asset values and total returns previously reported were from inception date, the date the share classes were first available to public shareholders. ^ The per share amount is not in accordance with the net realized and unrealized gain/loss for the period because of the timing of sales of fund shares and the amount of per share realized and unrealized gains and losses at such time. ^^ Ratio includes a reimbursement fee for expenses borne by MFS in prior years under the then existing expense reimbursement agreement. (+) Total returns do not include any applicable sales charges. & From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. + The fund's net asset value and total return calculation include a non-recurring accrual recorded as a result of an administrative proceeding regarding disclosure of brokerage allocation practices in connection with fund sales. The non-recurring accrual resulted in an increase in the net asset value of $0.01 per share based on shares outstanding on the day the proceeds were recorded. = Redemption fees charged by the fund during this period resulted in a per share impact of less than $0.01. SEE NOTES TO FINANCIAL STATEMENTS NOTES TO FINANCIAL STATEMENTS (1) BUSINESS AND ORGANIZATION MFS Core Growth Fund (the fund) is a diversified series of MFS Series Trust I (the trust). The trust is organized as a Massachusetts business trust and is registered under the Investment Company Act of 1940, as amended, as an open-end management investment company. (2) SIGNIFICANT ACCOUNTING POLICIES GENERAL - The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The fund can invest in foreign securities. Investments in foreign securities are vulnerable to the effects of changes in the relative values of the local currency and the U.S. dollar and to the effects of changes in each country's legal, political, and economic environment. INVESTMENT VALUATIONS - Equity securities in the fund's portfolio for which market quotations are available are valued at the last sale or official closing price as reported by an independent pricing service on the primary market or exchange on which they are primarily traded, or at the last quoted bid price for securities in which there were no sales during the day. Equity securities traded over the counter are valued at the last sales price traded each day as reported by an independent pricing service, or to the extent there are no sales reported, such securities are valued on the basis of quotations obtained from brokers and dealers. Short-term obligations with a remaining maturity in excess of 60 days will be valued upon dealer-supplied valuations. All other short-term obligations in the fund's portfolio are valued at amortized cost, which approximates market value as determined by the Board of Trustees. Money market mutual funds are valued at net asset value. Investment valuations, other assets, and liabilities initially expressed in foreign currencies are converted each business day into U.S. dollars based upon current exchange rates. When pricing service information or market quotations are not readily available, securities are priced at fair value as determined under the direction of the Board of Trustees. For example, significant events (such as movement in the U.S. securities market, or other regional and local developments) may occur between the time that foreign markets close (where the security is principally traded) and the time that the fund calculates its net asset value (generally, the close of the NYSE) that may impact the value of securities traded in these foreign markets. In these cases, the fund may utilize information from an external vendor or other sources to adjust closing market quotations of foreign equity securities to reflect what it believes to be the fair value of the securities as of the fund's valuation time. Because the frequency of significant events is not predictable, fair valuation of foreign equity securities may occur on a frequent basis. REPURCHASE AGREEMENTS - The fund may enter into repurchase agreements with institutions that the fund's investment adviser has determined are creditworthy. Each repurchase agreement is recorded at cost. The fund requires that the securities collateral in a repurchase transaction be transferred to the custodian in a manner sufficient to enable the fund to obtain those securities in the event of a default under the repurchase agreement. The fund monitors, on a daily basis, the value of the collateral to ensure that its value, including accrued interest, is greater than amounts owed to the fund under each such repurchase agreement. The fund, along with other affiliated entities of Massachusetts Financial Services Company (MFS), may utilize a joint trading account for the purpose of entering into one or more repurchase agreements. FOREIGN CURRENCY TRANSLATION - Purchases and sales of foreign investments, income, and expenses are converted into U.S. dollars based upon currency exchange rates prevailing on the respective dates of such transactions. Gains and losses attributable to foreign currency exchange rates on sales of securities are recorded for financial statement purposes as net realized gains and losses on investments. Gains and losses attributable to foreign exchange rate movements on income and expenses are recorded for financial statement purposes as foreign currency transaction gains and losses. That portion of both realized and unrealized gains and losses on investments that results from fluctuations in foreign currency exchange rates is not separately disclosed. SECURITY LOANS - State Street Bank and Trust Company ("State Street"), as lending agent, may loan the securities of the fund to certain qualified institutions (the "Borrowers") approved by the fund. The loans are collateralized at all times by cash and/or U.S. Treasury securities in an amount at least equal to the market value of the securities loaned. State Street provides the fund with indemnification against Borrower default. The fund bears the risk of loss with respect to the investment of cash collateral. On loans collateralized by cash, the cash collateral is invested in a money market fund or short-term securities. A portion of the income generated upon investment of the collateral is remitted to the Borrowers, and the remainder is allocated between the fund and the lending agent. On loans collateralized by U.S. Treasury securities, a fee is received from the Borrower, and is allocated between the fund and the lending agent. Income from securities lending is included in interest income on the Statement of Operations. The dividend and interest income earned on the securities loaned is accounted for in the same manner as other dividend and interest income. SHORT TERM FEES - For purchases made on or after July 1, 2004 and before April 1, 2005, the fund charged a 2% redemption fee (which was retained by the fund) on proceeds from Class A, Class B, Class C, and Class I shares redeemed or exchanged within 5 business days following their acquisition (either by purchase or exchange). Effective April 1, 2005, the fund will no longer charge a redemption fee. See the fund's prospectus for details. Any redemption fees charged are accounted for as an addition to paid-in capital. INVESTMENT TRANSACTIONS AND INCOME - Investment transactions are recorded on the trade date. Interest income is recorded on the accrual basis. All premium and discount is amortized or accreted for financial statement purposes in accordance with U.S. generally accepted accounting principles. All discount is accreted for tax reporting purposes as required by federal income tax regulations. Dividends received in cash are recorded on the ex-dividend date. Dividend and interest payments received in additional securities are recorded on the ex-dividend or ex-interest date in an amount equal to the value of the security on such date. The fund may receive proceeds from litigation settlements involving its portfolio holdings. Any proceeds received are reflected in realized gain/loss in the Statement of Operations, or in unrealized gain/loss if the security is still held by the fund. FEES PAID INDIRECTLY - The fund's custody fee is reduced according to an arrangement that measures the value of cash deposited with the custodian by the fund. During the year ended August 31, 2005, the fund's custodian fees were reduced by $21,835 under this arrangement. The fund has entered into a commission recapture agreement, under which certain brokers will credit the fund a portion of the commissions generated, to offset certain expenses of the fund. For the year ended August 31, 2005, the fund's miscellaneous expenses were reduced by $54,126 under this agreement. These amounts are shown as a reduction of total expenses on the Statement of Operations. TAX MATTERS AND DISTRIBUTIONS - The fund's policy is to comply with the provisions of the Internal Revenue Code (the Code) applicable to regulated investment companies and to distribute to shareholders all of its net taxable income, including any net realized gain on investments. Accordingly, no provision for federal income or excise tax is provided. Distributions to shareholders are recorded on the ex-dividend date. The fund distinguishes between distributions on a tax basis and a financial reporting basis and only distributions in excess of tax basis earnings and profits are reported in the financial statements as distributions from paid-in capital. Differences in the recognition or classification of income between the financial statements and tax earnings and profits, which result in temporary over-distributions for financial statement purposes, are classified as distributions in excess of net investment income or net realized gains. Common types of book and tax differences that could occur include differences in accounting for foreign currency transactions, net operating losses, capital loss carryforward assumed as a result of the acquisition, and wash sales. The fund paid no distributions for the years ended August 31, 2005 and August 31, 2004. During the year ended August 31, 2005, accumulated net investment loss decreased by $2,095,254, accumulated net realized loss on investments and foreign currency transactions increased by $300,597,737, and paid-in capital increased by $298,502,483 due to differences between book and tax accounting for foreign currency transactions, net operating losses, and capital loss carryforward and wash sale loss deferrals assumed as a result of the acquisition. This change had no effect on the net assets or net asset value per share. As of August 31, 2005, the components of distributable earnings (accumulated losses) on a tax basis were as follows: Capital loss carryforward $(316,413,027) Unrealized appreciation (depreciation) 41,899,671 Other temporary differences (513,093) For federal income tax purposes, the capital loss carryforward may be applied against any net taxable realized gains of each succeeding year until the earlier of its utilization or expiration as follows: EXPIRATION DATE August 31, 2008 $(82,754,624) August 31, 2009 (161,321,462) August 31, 2010 (25,708,026) August 31, 2011 (46,628,915) ---------------------------------------------------------- Total $(316,413,027) The availability of a portion of the capital loss carryforwards, which were acquired on June 3, 2005 in connection with the MFS Large Cap Growth Fund merger, may be limited in a given year. MULTIPLE CLASSES OF SHARES OF BENEFICIAL INTEREST - The fund offers multiple classes of shares, which differ in their respective distribution and service fees. All shareholders bear the common expenses of the fund based on daily net assets of each class, without distinction between share classes. Dividends are declared separately for each class. Differences in per share dividend rates are generally due to differences in separate class expenses. Class B shares will convert to Class A shares approximately eight years after purchase. (3) TRANSACTIONS WITH AFFILIATES INVESTMENT ADVISER - The fund has an investment advisory agreement with MFS to provide overall investment advisory and administrative services, and general office facilities. The management fee is computed daily and paid monthly at an annual rate of 0.75% of the fund's average daily net assets. As part of a settlement agreement with the New York Attorney General concerning market timing and related matters, MFS has agreed to reduce the management fee to 0.65% of the fund's average daily net assets for the period March 1, 2004 through February 28, 2009. For the year ended August 31, 2005, this waiver is reflected as a reduction of total expenses in the Statement of Operations. The management fee incurred for the year ended August 31, 2005 was equivalent to an annual effective rate of 0.65% of the fund's average daily net assets. DISTRIBUTOR - MFS Fund Distributors, Inc. (MFD), a wholly owned subsidiary of MFS, as distributor, received $51,691 for the year ended August 31, 2005, as its portion of the initial sales charge on sales of Class A shares of the fund. The Board of Trustees has adopted a distribution plan for certain class shares pursuant to Rule 12b-1 of the Investment Company Act of 1940. The fund's distribution plan provides that the fund will pay MFD for services provided by MFD and financial intermediaries in connection with the distribution and servicing of certain share classes. One component of the plan is a distribution fee paid to and retained by MFD. Another component of the plan is a service fee paid to MFD which subsequently pays a portion of this fee to financial intermediaries that enter into sales or service agreements with MFD, or its affiliates, based on the average daily net assets of accounts attributable to such intermediaries. Distribution Fee Plan Table: TOTAL ANNUAL SERVICE FEE DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE RETAINED AND SERVICE FEE RATE FEE RATE PLAN(1) RATE(2) BY MFD(3) FEE Class A 0.10% 0.25% 0.35% 0.35% $31,876 $1,623,948 Class B 0.75% 0.25% 1.00% 1.00% 1,116 1,531,573 Class C 0.75% 0.25% 1.00% 1.00% 1,041 869,071 Class R 0.25% 0.25% 0.50% 0.50% 15 23,333 Class R1 0.50% 0.25% 0.75% 0.75% 93 227 Class R2 0.25% 0.25% 0.50% 0.50% 62 225 Class R3 0.25% 0.25% 0.50% 0.50% 27 692 Class R4 -- 0.25% 0.25% 0.25% 31 54 - ----------------------------------------------------------------------------------------------------------------------------- Total Distribution and Service Fees $4,049,123 (1) In accordance with the distribution plan for certain classes, the fund pays distribution and/or service fees up to these annual percentage rates of each class' average daily net assets. (2) The annual effective rates represent actual fees incurred under the distribution plan for the year ended August 31, 2005 based on each class' average daily net assets. (3) For the year ended August 31, 2005, MFD retained these service fees. Certain Class A and Class C shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within 12 months following the purchase. Class B shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within six years of purchase. MFD retained all contingent deferred sales charges. Contingent deferred sales charges imposed during the year ended August 31, 2005 were as follows: AMOUNT Class A $19,069 Class B $347,578 Class C $5,599 SHAREHOLDER SERVICING AGENT - The fund pays a portion of shareholder servicing costs to MFS Service Center, Inc. (MFSC), a wholly-owned subsidiary of MFS. MFSC receives a fee from the fund, for its services as shareholder servicing agent, set periodically under the supervision of the fund's Board of Trustees. For the year ended August 31, 2005, the fee was $742,773, which equated to 0.1041% annually of the fund's average daily net assets. MFSC also receives payment from the fund for out-of-pocket and sub-accounting expenses paid by MFSC on behalf of the fund. For the year ended August 31, 2005, these costs amounted to $364,560. ADMINISTRATOR - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to certain funds for which MFS acts as investment adviser. Under an administrative services agreement, the funds may partially reimburse MFS the costs incurred to provide these services, subject to review and approval by the Board of Trustees. Each fund is charged a fixed amount plus a fee based on calendar year average net assets. Effective July 1, 2005, the fund's annual fixed amount is $10,000. The administrative services fee incurred for the year ended August 31, 2005 was equivalent to an annual effective rate of 0.0104% of the fund's average daily net assets. In addition to the administrative services provided by MFS to the fund as described above, MFS is responsible for providing certain retirement plan administration and services with respect to certain Class R shares. These services include various administrative, recordkeeping, and communication/ educational services with respect to the retirement plans which invest in these shares, and may be provided directly by MFS or by a third party. For the year ended August 31, 2005, the fund paid an annual retirement plan administration and services fee up to the following annual percentage rates of each class' average daily net assets: AMOUNT FEE TOTAL RETAINED RATE AMOUNT BY MFS Class R1 0.45% $136 $105 Class R2 0.40% 180 132 Class R3 (formerly Class R2) 0.25% 346 175 Class R4 0.15% 32 11 Class R5 0.10% 22 19 - ------------------------------------------------------------------------------ Total Retirement Plan Administration and Services Fees $716 $442 TRUSTEES' COMPENSATION - The fund pays compensation to Independent Trustees in the form of a retainer, attendance fees, and additional compensation to Board and Committee chairpersons. The fund does not pay compensation directly to Trustees who are officers of the investment adviser, or to officers of the fund, all of whom receive remuneration for their services to the fund from MFS. Certain officers and Trustees of the fund are officers or directors of MFS, MFD, and MFSC. The fund has an unfunded, defined benefit plan for retired Independent Trustees which resulted in a pension expense of $19,683. The fund also has an unfunded retirement benefit deferral plan for certain current Independent Trustees which resulted in an expense of $3,203. Both amounts are included in Trustees compensation for the year ended August 31, 2005. OTHER - This fund and certain other MFS funds (the funds) have entered into a services agreement (the Agreement) which provides for payment of fees by the funds to Tarantino LLC in return for the provision of services of an Independent Chief Compliance Officer (ICCO) for the funds. The ICCO is an officer of the funds and the sole member of Tarantino LLC. MFS has agreed to reimburse the fund for a portion of the payments made by the funds to Tarantino LLC in the amount of $2,489, which is shown as a reduction of total expenses in the Statement of Operations. Additionally, MFS has agreed to bear all expenses associated with office space, other administrative support, and supplies provided to the ICCO. The funds can terminate the Agreement with Tarantino LLC at any time under the terms of the Agreement. The fund's investment adviser, MFS, was the subject of an administrative proceeding regarding disclosure of brokerage allocation practices in connection with fund sales. As a result, proceeds in the amount of $589,873 were paid to the fund on February 16, 2005. (4) PORTFOLIO SECURITIES Purchases and sales of investments, other than U.S. government securities, purchased option transactions, and short-term obligations, aggregated $1,263,327,719 and $1,428,275,766, respectively. The cost and unrealized appreciation and depreciation in the value of the investments owned by the fund, as computed on a federal income tax basis, are as follows: Aggregate cost $1,068,481,878 --------------------------------------------------------- Gross unrealized appreciation $59,605,147 Gross unrealized depreciation (17,705,476) --------------------------------------------------------- Net unrealized appreciation (depreciation) $41,899,671 (5) SHARES OF BENEFICIAL INTEREST The fund's Declaration of Trust permits the Trustees to issue an unlimited number of full and fractional shares of beneficial interest. Transactions in fund shares were as follows: Year ended 8/31/05 Year ended 8/31/04 SHARES AMOUNT SHARES AMOUNT CLASS A SHARES Shares sold 6,045,043 $96,257,424 10,626,969 $158,101,180 Shares issued in connection with acquisition of MFS Large Cap Growth Fund 15,966,412 260,252,510 -- -- Shares reacquired (11,909,431) (190,911,285) (17,569,674) (262,111,271) - ---------------------------------------------------------------------------------------------------------- Net change 10,102,024 $165,598,649 (6,942,705) $(104,010,091) CLASS B SHARES Shares sold 824,699 $12,849,738 2,054,497 $29,865,095 Shares issued in connection with acquisition of MFS Large Cap Growth Fund 4,980,471 78,492,230 -- -- Shares reacquired (3,061,054) (47,687,100) (3,426,834) (49,782,232) - ---------------------------------------------------------------------------------------------------------- Net change 2,744,116 $43,654,868 (1,372,337) $(19,917,137) CLASS C SHARES Shares sold 733,441 $11,311,540 1,747,376 $25,401,296 Shares reacquired (2,051,435) (31,628,141) (3,226,826) (46,906,587) - ---------------------------------------------------------------------------------------------------------- Net change (1,317,994) $(20,316,601) (1,479,450) $(21,505,291) CLASS I SHARES Shares sold 36,183 $585,957 39,694 $605,358 Shares issued in connection with acquisition of MFS Large Cap Growth Fund 2,991 49,763 -- -- Shares reacquired (93,157) (1,502,028) (58,806) (894,652) - ---------------------------------------------------------------------------------------------------------- Net change (53,983) $(866,308) (19,112) $(289,294) CLASS R SHARES (FORMERLY CLASS R1) Shares sold 216,408 $3,447,630 320,957 $4,749,392 Shares reacquired (86,556) (1,385,040) (228,340) (3,418,826) - ---------------------------------------------------------------------------------------------------------- Net change 129,852 $2,062,590 92,617 $1,330,566 Period ended 8/31/05** SHARES AMOUNT CLASS R1 SHARES Shares sold 5,484 $84,854 Shares reacquired (566) (9,209) - ------------------------------------------------------------------------ Net change 4,918 $75,645 CLASS R2 SHARES Shares sold 26,881 $437,516 Shares reacquired (2) (39) - ------------------------------------------------------------------------ Net change 26,879 $437,477 Year ended 8/31/05 Period ended 8/31/04* SHARES AMOUNT SHARES AMOUNT CLASS R3 SHARES (FORMERLY CLASS R2) Shares sold 42,062 $697,441 13,975 $213,149 Shares reacquired (2,868) (45,896) (6,804) (103,893) - ---------------------------------------------------------------------------------------------------------- Net change 39,194 $651,545 7,171 $109,256 Period ended 8/31/05** SHARES AMOUNT CLASS R4 SHARES Shares sold 3,154 $50,000 CLASS R5 SHARES Shares sold 3,154 $50,000 * For the period from October 31, 2003, through August 31, 2004. ** For the period from April 1, 2005, through August 31, 2005. (6) LINE OF CREDIT The fund and other affiliated funds participate in a $1 billion unsecured line of credit provided by a syndication of banks under a credit agreement. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its borrowings, at a rate equal to the Federal Reserve funds rate plus 0.35%. In addition, a commitment fee, based on the average daily, unused portion of the line of credit, is allocated among the participating funds at the end of each calendar quarter. The commitment fee allocated to the fund for the year ended August 31, 2005 was $4,536, and is included in miscellaneous expense. The fund had no significant borrowings during the year ended August 31, 2005. (7) ACQUISITIONS At close of business on June 3, 2005, the fund acquired all of the assets and liabilities of MFS Large Cap Growth Fund pursuant to a plan of reorganization approved by the MFS Large Cap Growth Fund shareholders on May 17, 2005. The acquisition was accomplished by a tax-free exchange of 20,949,874 shares of the fund (valued at $338,794,503) for all of the assets and liabilities of MFS Large Cap Growth Fund. MFS Large Cap Growth Fund then converted all of its outstanding shares for shares of the fund and distributed those shares to its shareholders. MFS Large Cap Growth Fund's net assets on that date were $338,794,503, including $39,750,917 of unrealized appreciation, $1,382,225 of accumulated net investment loss, and $300,727,128 of accumulated net realized loss on investments and foreign currency transactions. These assets were combined with those of the fund. The aggregate net assets of the fund after the acquisition were $960,823,462. REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Trustees of MFS Series Trust I and Shareholders of MFS Core Growth Fund: We have audited the accompanying statement of assets and liabilities of MFS Core Growth Fund (the Fund) (one of the portfolios comprising MFS Series Trust I), including the portfolio of investments, as of August 31, 2005, and the related statement of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the periods indicated therein. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. We were not engaged to perform an audit of the Fund's internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of August 31, 2005, by correspondence with the custodian and brokers or by other appropriate auditing procedures where replies from brokers were not received. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of MFS Core Growth Fund at August 31, 2005, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and its financial highlights for each of the periods indicated therein, in conformity with U.S. generally accepted accounting principles. ERNST & YOUNG LLP Boston, Massachusetts October 11, 2005 RESULTS OF SHAREHOLDER MEETING (unaudited) - 8/31/05 At a special meeting of shareholders of Series Trust I, which was held on March 23, 2005, the following actions were taken: ITEM 1. To elect a Board of Trustees: NUMBER OF DOLLARS ----------------------------------------------- NOMINEE AFFIRMATIVE WITHHOLD AUTHORITY Lawrence H. Cohn, M.D. $8,025,286,508.56 $117,939,292.78 - -------------------------------------------------------------------------- David H. Gunning 8,030,402,677.64 112,823,123.70 - -------------------------------------------------------------------------- William R. Gutow 8,027,523,726.27 115,702,075.07 - -------------------------------------------------------------------------- Michael Hegarty 8,021,162,525.49 122,063,275.85 - -------------------------------------------------------------------------- J. Atwood Ives 8,024,062,680.07 119,163,121.27 - -------------------------------------------------------------------------- Amy B. Lane 8,019,792,882.59 123,432,918.75 - -------------------------------------------------------------------------- Robert J. Manning 8,030,980,361.78 112,245,439.56 - -------------------------------------------------------------------------- Lawrence T. Perara 8,025,935,401.12 117,290,400.22 - -------------------------------------------------------------------------- Robert C. Pozen 8,031,655,470.25 111,570,331.09 - -------------------------------------------------------------------------- J. Dale Sherratt 8,027,226,595.42 115,999,205.92 - -------------------------------------------------------------------------- Laurie J. Thomsen 8,019,388,506.87 123,837,294.47 - -------------------------------------------------------------------------- TRUSTEES AND OFFICERS -- IDENTIFICATION AND BACKGROUND The Trustees and officers of the Trust, as of October 1, 2005, are listed below, together with their principal occupations during the past five years. (Their titles may have varied during that period.) The address of each Trustee and officer is 500 Boylston Street, Boston, Massachusetts 02116. PRINCIPAL OCCUPATIONS DURING POSITION(s) HELD TRUSTEE/OFFICER THE PAST FIVE YEARS & NAME, DATE OF BIRTH WITH FUND SINCE(1) OTHER DIRECTORSHIPS(2) - ------------------- ---------------- --------------- ----------------------------- INTERESTED TRUSTEES Robert J. Manning(3) Trustee and February 2004 Massachusetts Financial Services (born 10/20/63) President Company, Chief Executive Officer, President, Chief Investment Officer and Director Robert C. Pozen(3) Trustee February 2004 Massachusetts Financial Services (born 08/08/46) Company, Chairman (since February 2004); Harvard Law School (education), John Olin Visiting Professor (since July 2002); Secretary of Economic Affairs, The Commonwealth of Massachusetts (January 2002 to December 2002); Fidelity Investments, Vice Chairman (June 2000 to December 2001); Fidelity Management & Research Company (investment adviser), President (March 1997 to July 2001); Bell Canada Enterprises (telecommunications), Director; Medtronic, Inc. (medical technology), Director; Telesat (satellite communications), Director INDEPENDENT TRUSTEES J. Atwood Ives Trustee and Chair February 1992 Private investor; Eastern (born 05/01/36) of Trustees Enterprises (diversified services company), Chairman, Trustee and Chief Executive Officer (until November 2000) Lawrence H. Cohn, M.D. Trustee August 1993 Brigham and Women's Hospital, (born 03/11/37) Chief of Cardiac Surgery; Harvard Medical School, Professor of Surgery David H. Gunning Trustee January 2004 Cleveland-Cliffs Inc. (mining (born 05/30/42) products and service provider), Vice Chairman/Director (since April 2001); Encinitos Ventures (private investment company), Principal (1997 to April 2001); Lincoln Electric Holdings, Inc. (welding equipment manufacturer), Director William R. Gutow Trustee December 1993 Private investor and real estate (born 09/27/41) consultant; Capitol Entertainment Management Company (video franchise), Vice Chairman Michael Hegarty Trustee December 2004 Retired; AXA Financial (financial (born 12/21/44) services and insurance), Vice Chairman and Chief Operating Officer (until May 2001); The Equitable Life Assurance Society (insurance), President and Chief Operating Officer (until May 2001) Amy B. Lane Trustee January 2004 Retired; Merrill Lynch & Co., (born 02/08/53) Inc., Managing Director, Investment Banking Group (1997 to February 2001); Borders Group, Inc. (book and music retailer), Director; Federal Realty Investment Trust (real estate investment trust), Trustee Lawrence T. Perera Trustee July 1981 Hemenway & Barnes (attorneys), Partner (born 06/23/35) J. Dale Sherratt Trustee August 1993 Insight Resources, Inc. (acquisition planning (born 09/23/38) specialists), President; Wellfleet Investments (investor in health care companies), Managing General Partner (since 1993); Cambridge Nutraceuticals (professional nutritional products), Chief Executive Officer (until May 2001) Laurie J. Thomsen Trustee March 2005 Private investor; Prism Venture (born 08/05/57) Partners (venture capital), Co- founder and General Partner (until June 2004); St. Paul Travelers Companies (commercial property liability insurance), Director OFFICERS Robert J. Manning(3) President and February 2004 Massachusetts Financial Services (born 10/20/63) Trustee Company, Chief Executive Officer, President, Chief Investment Officer and Director Tracy Atkinson(3) Treasurer September 2005 Massachusetts Financial Services (born 12/30/64) Company, Senior Vice President (since September 2004); PricewaterhouseCoopers LLP, Partner (prior to September 2004) Christopher R. Bohane(3) Assistant July 2005 Massachusetts Financial Services (born 1/18/74) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since April 2003); Kirkpatrick & Lockhart LLP (law firm), Associate (prior to April 2003); Nvest Services Company, Assistant Vice President and Associate Counsel (prior to January 2001) Jeffrey N. Carp(3) Secretary and September 2004 Massachusetts Financial Services (born 12/01/56) Clerk Company, Executive Vice President, General Counsel and Secretary (since April 2004); Hale and Dorr LLP (law firm), Partner (prior to April 2004) Ethan D. Corey(3) Assistant July 2005 Massachusetts Financial Services (born 11/21/63) Secretary and Company, Special Counsel (since Assistant Clerk December 2004); Dechert LLP (law firm), Counsel (prior to December 2004) Stephanie A. DeSisto(3) Assistant May 2003 Massachusetts Financial Services (born 10/01/53) Treasurer Company, Vice President (since April 2003); Brown Brothers Harriman & Co., Senior Vice President (November 2002 to April 2003); ING Groep N.V./Aeltus Investment Management, Senior Vice President (prior to November 2002) David L. DiLorenzo(3) Assistant July 2005 Massachusetts Financial Services (born 8/10/68) Treasurer Company, Vice President (since June 2005); JP Morgan Investor Services, Vice President (January 2001 to June 2005); State Street Bank, Vice President and Corporate Audit Manager (prior to January 2001) Timothy M. Fagan(3) Assistant September 2005 Massachusetts Financial Services (born 7/10/68) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since September 2005); John Hancock Advisers, LLC, Vice President and Chief Compliance Officer (September 2004 to August 2005), Senior Attorney (prior to September 2004); John Hancock Group of Funds, Vice President and Chief Compliance Officer (September 2004 to December 2004) Mark D. Fischer(3) Assistant July 2005 Massachusetts Financial Services (born 10/27/70) Treasurer Company, Vice President (since May 2005); JP Morgan Investment Management Company, Vice President (prior to May 2005) Brian T. Hourihan(3) Assistant September 2004 Massachusetts Financial Services (born 11/11/64) Secretary and Company, Vice President, Senior Assistant Clerk Counsel and Assistant Secretary (since June 2004); Affiliated Managers Group, Inc., Chief Legal Officer/Centralized Compliance Program (January to April 2004); Fidelity Research & Management Company, Assistant General Counsel (prior to January 2004) Ellen Moynihan(3) Assistant April 1997 Massachusetts Financial Services (born 11/13/57) Treasurer Company, Vice President Susan S. Newton(3) Assistant May 2005 Massachusetts Financial Services (born 03/07/50) Secretary and Company, Senior Vice President and Assistant Clerk Associate General Counsel (since April 2005); John Hancock Advisers, LLC, Senior Vice President, Secretary and Chief Legal Officer (prior to April 2005); John Hancock Group of Funds, Senior Vice President, Secretary and Chief Legal Officer (prior to April 2005) Susan A. Pereira(3) Assistant July 2005 Massachusetts Financial Services (born 11/05/70) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since June 2004); Bingham McCutchen LLP (law firm), Associate (January 2001 to June 2004); Preti, Flaherty, Beliveau, Pachios & Haley, LLC, Associate (prior to January 2001) Frank L. Tarantino Independent Chief June 2004 Tarantino LLC (provider of (born 03/07/44) Compliance compliance services), Principal Officer (since June 2004); CRA Business Strategies Group (consulting services), Executive Vice President (April 2003 to June 2004); David L. Babson & Co. (investment adviser), Managing Director, Chief Administrative Officer and Director (February 1997 to March 2003) James O. Yost(3) Assistant September 1990 Massachusetts Financial Services (born 06/12/60) Treasurer Company, Senior Vice President - ------------ (1) Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served continuously since appointment unless indicated otherwise. (2) Directorships or trusteeships of companies required to report to the Securities and Exchange Commission (i.e., "public companies"). (3) "Interested person" of the Trust within the meaning of the Investment Company Act of 1940 (referred to as the 1940 Act), which is the principal federal law governing investment companies like the fund, as a result of position with MFS. The address of MFS is 500 Boylston Street, Boston, Massachusetts 02116. Each Trustee has been elected by shareholders and each Trustee and officer holds office until his or her successor is chosen and qualified or until his or her earlier death, resignation, retirement or removal. Messrs. Ives and Sherratt and Mses. Lane and Thomsen are members of the Trust's Audit Committee. Each of the Trust's Trustees and officers holds comparable positions with certain other funds of which MFS or a subsidiary is the investment adviser or distributor, and, in the case of the officers, with certain affiliates of MFS. As of December 31, 2004, each Trustee served as a board member of 99 funds within the MFS Family of Funds. The Trust held a shareholders' meeting in 2005, and will hold a shareholders' meeting at least once every five years thereafter, to elect Trustees. The Statement of Additional Information contains further information about the Trustees and is available without charge upon request by calling 1-800-225-2606. - ----------------------------------------------------------------------------------------------------------- INVESTMENT ADVISER CUSTODIAN Massachusetts Financial Services Company State Street Bank and Trust Company 500 Boylston Street, Boston, MA 02116-3741 225 Franklin Street, Boston, MA 02110 DISTRIBUTOR INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM MFS Fund Distributors, Inc. Ernst & Young LLP 500 Boylston Street, Boston, MA 02116-3741 200 Clarendon Street, Boston, MA 02116 PORTFOLIO MANAGER Stephen Pesek BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT The Investment Company Act of 1940 requires that both the full Board of Trustees and a majority of the non-interested ("independent") Trustees, voting separately, annually approve the continuation of the Fund's investment advisory agreement with MFS. The Trustees consider matters bearing on the Fund and its advisory arrangements at their meetings throughout the year, including a review of performance data at each regular meeting. In addition, the independent Trustees met several times over the course of three months beginning in May and ending in July, 2005 ("contract review meetings") for the specific purpose of considering whether to approve the continuation of the investment advisory agreement for the Fund and the other investment companies that the Board oversees (the "MFS Funds"). The independent Trustees were assisted in their evaluation of the Fund's investment advisory agreement by independent legal counsel, from whom they received separate legal advice and with whom they met separately from MFS during various contract review meetings. The independent Trustees were also assisted in this process by the MFS Funds' Independent Chief Compliance Officer, a full-time senior officer appointed by and reporting to the independent Trustees. In connection with their deliberations regarding the continuation of the investment advisory agreement, the Trustees, including the independent Trustees, considered such information and factors as they believed, in light of the legal advice furnished to them and their own business judgment, to be relevant. The investment advisory agreement for the Fund was considered separately, although the Trustees also took into account the common interests of all MFS Funds in their review. As described below, the Trustees considered the nature, quality, and extent of the various investment advisory, administrative, and shareholder services performed by MFS under the existing investment advisory agreement and other arrangements with the Fund. In connection with their contract review meetings, the Trustees received and relied upon materials which included, among other items: (i) information provided by Lipper Inc. on the investment performance of the Fund for various time periods ended December 31, 2004 and the investment performance of a group of funds with substantially similar investment classifications/objectives (the "Lipper performance universe"), as well as the investment performance of a group of funds identified by objective criteria suggested by MFS ("peer funds"), (ii) information provided by Lipper Inc. on the Fund's advisory fees and other expenses and the advisory fees and other expenses of comparable funds identified by Lipper (the "Lipper expense group"), as well as the advisory fees and other expenses of peer funds identified by objective criteria suggested by MFS, (iii) information provided by MFS on the advisory fees of comparable portfolios of other clients of MFS, including institutional separate account and other clients, (iv) information as to whether and to what extent applicable expense waivers, reimbursements or fee "breakpoints" are observed for the Fund, (v) information regarding MFS' financial results and financial condition, including MFS' and certain of its affiliates' estimated profitability from services performed for the Fund and the MFS Funds as a whole, (vi) MFS' views regarding the outlook for the mutual fund industry and the strategic business plans of MFS, (vii) descriptions of various functions performed by MFS for the Funds, such as compliance monitoring and portfolio trading practices, and (viii) information regarding the overall organization of MFS, including information about MFS' senior management and other personnel providing investment advisory, administrative and other services to the Fund and the other MFS Funds. The comparative performance, fee and expense information prepared and provided by Lipper Inc. was not independently verified and the independent Trustees did not independently verify any information provided to them by MFS. The Trustees' conclusion as to the continuation of the investment advisory agreement was based on a comprehensive consideration of all information provided to the Trustees and not the result of any single factor. Some of the factors that figured particularly in the Trustees' deliberations are described below, although individual Trustees may have evaluated the information presented differently from one another, giving different weights to various factors. It is also important to recognize that the fee arrangements for the Fund and other MFS Funds are the result of years of review and discussion between the independent Trustees and MFS, that certain aspects of such arrangements may receive greater scrutiny in some years than others, and that the Trustees' conclusions may be based, in part, on their consideration of these same arrangements during the course of the year and in prior years. Based on information provided by Lipper Inc. and MFS, the Trustees reviewed the Fund's total return investment performance as well as the performance of peer groups of funds over various time periods. The Trustees placed particular emphasis on the total return performance of the Fund's Class A shares in comparison to the performance of funds in its Lipper performance universe over the three-year period ended December 31, 2004, which the Trustees believed was a long enough period to reflect differing market conditions. The Fund's performance was in the 62nd percentile relative to the other funds in the universe for this three-year period (the 1st percentile being the best performers and the 100th percentile being the worst performers). The total return performance of the Fund's Class A shares was in the 20th percentile for the one-year period and the 34th percentile for the five-year period ended December 31, 2004 relative to the Lipper performance universe. Because of the passage of time, these performance results are likely to differ from the performance results for more recent periods, including those shown elsewhere in this report. In the course of their deliberations, the Trustees took into account information provided by MFS in connection with the contract review meetings, as well as during investment review meetings conducted with portfolio management personnel during the course of the year, as to MFS' efforts to improve the Fund's performance. After reviewing these and related factors, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that they were satisfied with MFS' responses and efforts relating to investment performance. In assessing the reasonableness of the Fund's advisory fee, the Trustees considered, among other information, the Fund's advisory fee and the total expense ratio of the Fund's Class A shares as a percentage of average net assets and the advisory fee and total expense ratios of peer groups of funds based on information provided by Lipper Inc. and MFS. The Trustees considered whether the Fund was subject to any fee waivers or reductions or expense limitations. The Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate and total expense ratio were each approximately at the Lipper expense group median. The Trustees also considered the advisory fees charged by MFS to institutional accounts. In comparing these fees, the Trustees considered information provided by MFS as to the generally broader scope of services provided by MFS to the Fund in comparison to institutional accounts, the higher demands placed on MFS' investment personnel and trading infrastructure as a result of the daily cash in-flows and out-flows of the Fund, and the impact on MFS and expenses associated with the more extensive regulatory regime to which the Fund is subject in comparison to institutional accounts. The Trustees also considered whether the Fund is likely to benefit from any economies of scale in the management of the Fund in the event of growth in assets of the Fund. They noted that the Fund's advisory fee rate schedule is not currently subject to any breakpoints. Taking into account fee waivers or reductions or expense reductions, if any, the Trustees determined not to recommend any advisory fee breakpoints for the Fund at this time. The Trustees also considered information prepared by MFS relating to MFS' costs and profits with respect to the Fund, the MFS Funds considered as a group, and other investment companies and accounts advised by MFS, as well as MFS' methodologies used to determine and allocate its costs to the MFS Funds, the Fund and other accounts and products for purposes of estimating profitability. After reviewing these and other factors described herein, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that the advisory fees charged to the Fund represent reasonable compensation in light of the nature and quality of the services being provided by MFS to the Fund. In addition, the Trustees considered MFS' resources and related efforts to continue to retain, attract and motivate capable personnel to serve the Fund. The Trustees also considered current and developing conditions in the financial services industry, including the entry into the industry of large and well-capitalized companies which are spending, and appear to be prepared to continue to spend, substantial sums to engage personnel and to provide services to competing investment companies. In this regard, the Trustees also considered the financial resources of MFS and its ultimate parent, Sun Life Financial Inc. The Trustees also considered the advantages and possible disadvantages to the Fund of having an adviser which also serves other investment companies as well as other accounts. The Trustees also considered the nature, quality, cost, and extent of administrative, transfer agency, and distribution services provided to the Fund by MFS and its affiliates under agreements and plans other than the investment advisory agreement, including any 12b-1 fees the Fund pays to MFS Fund Distributors, Inc., an affiliate of MFS. The Trustees also considered the nature, extent and quality of certain other services MFS performs or arranges for on the Fund's behalf, including securities lending programs, directed expense payment programs, class action recovery programs, and MFS' interaction with third-party service providers, principally custodians and sub-custodians. The Trustees concluded that the various non-advisory services provided by MFS and its affiliates on behalf of the Funds were satisfactory. The Trustees also considered benefits to MFS from the use of the Fund's portfolio brokerage commissions to pay for research and other similar services (including MFS' general policy to pay directly for third-party research), and various other factors. Additionally, the Trustees considered so-called "fall- out benefits" to MFS such as reputational value derived from serving as investment manager to the Fund. Based on their evaluation of factors that they deemed to be material, including those factors described above, the Board of Trustees, including a majority of the independent Trustees, concluded that the Fund's investment advisory agreement with MFS should be continued for an additional one-year period, commencing August 1, 2005. A discussion regarding the Board's most recent review and renewal of the Fund's investment advisory agreement will be available on or before December 1, 2005 by clicking on the fund's name under "Select a fund" on the MFS website (mfs.com). PROXY VOTING POLICIES AND INFORMATION A general description of the MFS funds' proxy voting policies and procedures is available without charge, upon request, by calling 1-800-225-2606, by visiting the Proxy Voting section of mfs.com or by visiting the SEC's Web site at http://www.sec.gov. Information regarding how the fund voted proxies relating to portfolio securities during the most recent twelve-month period ended June 30 is available without charge by visiting the Proxy Voting section of mfs.com or by visiting the SEC's Web site at http://www.sec.gov. QUARTERLY PORTFOLIO DISCLOSURE The fund will file a complete schedule of portfolio holdings with the Securities and Exchange Commission (the Commission) for the first and third quarters of each fiscal year on Form N-Q. The fund's Form N-Q may be reviewed and copied at the: Public Reference Room Securities and Exchange Commission Washington, D.C. 20549-0102 Information on the operation of the Public Reference Room may be obtained by calling the Commission at 1-800-SEC-0330. The fund's Form N-Q is available on the EDGAR database on the Commission's Internet website at http://www.sec.gov, and copies of this information may be obtained, upon payment of a duplicating fee, by electronic request at the following e-mail address: publicinfo@sec.gov or by writing the Public Reference Section at the above address. A shareholder can also obtain the quarterly portfolio holdings report at mfs.com. FEDERAL TAX INFORMATION (unaudited) In January 2006, shareholders will be mailed a Form 1099-DIV reporting the federal tax status of all distributions paid during the calendar year 2005. CONTACT INFORMATION INVESTOR SERVICE Write to us at: MFS Service Center, Inc. P.O. Box 55824 Boston, MA 02205-5824 Type of Information Phone number Hours, Eastern Time - -------------------------------------------------------------------------------- General information 1-800-225-2606 8 a.m. to 8 p.m., any business day - -------------------------------------------------------------------------------- Speech- or hearing-impaired 1-800-637-6576 9 a.m. to 5 p.m., any business day - -------------------------------------------------------------------------------- Share prices, account 1-800-MFS-TALK balances exchanges (1-800-637-8255) 24 hours a day, 365 days a or stock and bond outlooks touch-tone required year - -------------------------------------------------------------------------------- M F S(SM) INVESTMENT MANAGEMENT(R) (C) 2005 MFS Investment Management(R) MFS(R) investment products are offered through MFS Fund Distributors, Inc., 500 Boylston Street, Boston, MA 02116. CGF-ANN-10/05 86M MFS(R) NEW DISCOVERY FUND 8/31/05 ANNUAL REPORT - -------------------------------------------------------------------------- LETTER FROM THE CEO 1 - --------------------------------------------------- PORTFOLIO COMPOSITION 2 - --------------------------------------------------- MANAGEMENT REVIEW 3 - --------------------------------------------------- PERFORMANCE SUMMARY 5 - --------------------------------------------------- EXPENSE TABLE 8 - --------------------------------------------------- PORTFOLIO OF INVESTMENTS 10 - --------------------------------------------------- FINANCIAL STATEMENTS 16 - --------------------------------------------------- NOTES TO FINANCIAL STATEMENTS 29 - --------------------------------------------------- REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 38 - --------------------------------------------------- RESULTS OF SHAREHOLDER MEETING 39 - --------------------------------------------------- TRUSTEES AND OFFICERS 40 - --------------------------------------------------- BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT 45 - --------------------------------------------------- PROXY VOTING POLICIES AND INFORMATION 49 - --------------------------------------------------- QUARTERLY PORTFOLIO DISCLOSURE 49 - --------------------------------------------------- FEDERAL TAX INFORMATION 49 - --------------------------------------------------- CONTACT INFORMATION BACK COVER - --------------------------------------------------- THIS REPORT HAS BEEN PREPARED FOR THE GENERAL INFORMATION TO SHAREHOLDERS. IT IS AUTHORIZED FOR DISTRIBUTION TO PROSPECTIVE INVESTORS ONLY WHEN PRECEDED OR ACCOMPANIED BY A CURRENT PROSPECTUS. M F S(SM) INVESTMENT MANAGEMENT(R) LETTER FROM THE CEO [Photo of Robert J. Manning] Dear Shareholders, Most investors are familiar with the basic principles of investing - focus on the long term and keep your assets diversified across different investment categories. Still, it is surprising how often we forget these basic lessons. Certainly, the dot-com euphoria that overtook Wall Street in the late 1990s had many people hoping they could become millionaires overnight. But the market decline that started in the spring of 2000 taught everyone how misguided those hopes had been. Now, less than five years after the market taught a harsh lesson in the follies of speculative investing, we are seeing a number of trends that suggest many investors, including professionals, are hoping for overnight miracles again. We see a steady stream of market "gurus" on television news shows, promising to teach amateur investors the strategies that will allow them to get rich quick. Hedge funds - which by their nature move in and out of investments rapidly - have soared in popularity over the past five years. We are reminded every day that we live in a "what have you done for me lately?" world, but this mindset should not influence how we invest and manage our money. In fact, investors often fall short of their goals because they trade in and out of investments too frequently and at inopportune times. Throughout our entire 80-year history, MFS' money management process has focused on long-term investment opportunities. We firmly believe that one of the best ways to realize long-term financial goals - be it a college education, a comfortable retirement, or a secure family legacy - is to follow a three-pronged approach that focuses on longer time horizons. Allocate holdings across the major asset classes - including stocks, bonds, and cash. Diversify within each class to take advantage of different market segments and investing styles. And rebalance assets regularly to maintain a desired asset allocation.* This long-term approach requires diligence and patience, two traits that in our experience are essential to capitalizing on the many opportunities the financial markets can offer. Respectfully, /s/ Robert J. Manning Robert J. Manning Chief Executive Officer and Chief Investment Officer MFS Investment Management(R) October 17, 2005 * Asset allocation, diversification, and rebalancing does not guarantee a profit or protect against a loss. The opinions expressed in this letter are those of MFS, and no forecasts can be guaranteed. PORTFOLIO COMPOSITION PORTFOLIO STRUCTURE Stocks 99.9% Cash & Other Net Assets 0.1% TOP TEN HOLDINGS Aspect Medical Systems, Inc. 2.5% ------------------------------------------------ Cognex Corp. 2.1% ------------------------------------------------ TIBCO Software, Inc. 2.0% ------------------------------------------------ Strayer Education, Inc. 1.8% ------------------------------------------------ MSC Industrial Direct Co., Inc., "A" 1.8% ------------------------------------------------ Activision, Inc. 1.8% ------------------------------------------------ MicroStrategy, Inc., "A" 1.8% ------------------------------------------------ Medicis Pharmaceutical Corp., "A" 1.7% ------------------------------------------------ THQ, Inc. 1.6% ------------------------------------------------ Cytyc Corp. 1.6% ------------------------------------------------ EQUITY SECTORS Health Care 26.3% ------------------------------------------------ Technology 21.3% ------------------------------------------------ Special Products & Services 14.3% ------------------------------------------------ Leisure 9.8% ------------------------------------------------ Industrial Goods & Services 8.6% ------------------------------------------------ Retailing 6.9% ------------------------------------------------ Financial Services 6.7% ------------------------------------------------ Basic Materials 2.4% ------------------------------------------------ Autos & Housing 2.1% ------------------------------------------------ Consumer Staples 1.3% ------------------------------------------------ Energy 0.2% ------------------------------------------------ Percentages are based on net assets as of 8/31/05. The portfolio is actively managed, and current holdings may be different. MANAGEMENT REVIEW SUMMARY OF RESULTS For the twelve months ended August 31, 2005, Class A shares of the MFS New Discovery Fund had a total return of 24.54%, at net asset value. In comparison, the fund's benchmark, the Russell 2000 Growth Index, returned 23.51%. CONTRIBUTORS TO PERFORMANCE Stock selection in the health care, industrial goods and services, and leisure sectors aided relative performance over the reporting period. Several health care positions were among the fund's top contributors which included medical equipment companies Aspect Medical Systems, Ventana Medical Systems, FoxHollow Technologies*, and Thoratec. Within the leisure sector, our holdings in video game makers THQ and Activision, which is not a benchmark constituent, and slot machine manufacturer WMS Industries* benefited performance as each had strong gains over the period. Although security selection in industrial goods and services significantly contributed to relative results, no individual holdings were among the fund's greatest contributors. Other securities that positively impacted relative results included business software firm MicroStrategy, Internet software company Macromedia*, which is not held in the benchmark, and urban fashion apparel chain Citi Trends. DETRACTORS FROM PERFORMANCE Energy, special products and services, and consumer staples were the greatest detracting sectors during the reporting period. For energy, our underweighted position in the strong-performing sector and, to a lesser extent, security selection hurt relative performance. Security selection in the special products and services sector also hurt relative results. Within this sector, our positions in relocation services company SIRVA and market research firm Harris Interactive detracted from performance as both stocks underperformed the benchmark. Stock selection in the consumer staples sector was also a drag on performance with frozen foods manufacturer CoolBrands*, which is not a benchmark constituent, among the top detractors. Elsewhere, our positioning in business to business and e-commerce software vendor Ariba*, semiconductor firm Silicon Laboratories*, dermatological pharmaceutical company Medicis Pharmaceuticals, and media company Gemstar-TV Guide* hindered results. Additionally, our holdings in chip makers AudioCodes* and Zarlink Semiconductor*, neither of which are benchmark constituents, significantly detracted as both stocks declined over the period. The fund's cash position was also a detractor from relative performance. As with nearly all mutual funds, this portfolio holds cash to buy new holdings and to provide liquidity. In a period when equity markets rose as measured by the primary benchmark, holding cash hurt performance versus our benchmark, which has no cash position. * Security was not held in the portfolio at period-end. Respectfully, Thomas Wetherald Portfolio Manager Note to Shareholders: Effective May 1, 2005, Thomas H. Wetherald became the sole portfolio manager of the fund. Previously, Camille H. Lee had co-managed the fund with Mr. Wetherald. The views expressed in this report are those of the portfolio manager only through the end of the period of the report as stated on the cover and do not necessarily reflect the views of MFS or any other person in the MFS organization. These views are subject to change at any time based on market and other conditions, and MFS disclaims any responsibility to update such views. These views may not be relied upon as investment advice or an indication of trading intent on behalf of any MFS Fund. References to specific securities are not recommendations of such securities, and may not be representative of any MFS Fund's current or future investments. PERFORMANCE SUMMARY THROUGH 8/31/05 The following chart illustrates the historical performance of the fund's original share class in comparison to its benchmark. Performance results include the deduction of the maximum applicable sales charge and reflect the percentage change in net asset value, including reinvestment of dividends and capital gains distributions. Benchmark comparisons are unmanaged and do not reflect any fees or expenses. The performance of other share classes will be greater than or less than the line shown. (See Notes to Performance Summary.) VISIT MFS.COM FOR THE MOST RECENT MONTH-END PERFORMANCE RESULTS. (FOR THE MOST RECENT MONTH-END PERFORMANCE FOR CLASS I SHARES CALL 1-888-808-6374.) MARKET VOLATILITY CAN SIGNIFICANTLY AFFECT SHORT-TERM PERFORMANCE, AND CURRENT PERFORMANCE MAY BE LOWER OR HIGHER THAN THE PERFORMANCE DATA QUOTED. THE PERFORMANCE DATA QUOTED REPRESENTS PAST PERFORMANCE, WHICH IS NO GUARANTEE OF FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE WILL FLUCTUATE, AND SHARES, WHEN REDEEMED, MAY BE WORTH MORE OR LESS THAN THEIR ORIGINAL COST. HIGH SHORT-TERM RETURNS FOR ANY PERIOD MAY BE AND LIKELY WERE ATTRIBUTABLE TO FAVORABLE MARKET CONDITIONS DURING THAT PERIOD, WHICH MAY NOT BE REPEATABLE. THE PERFORMANCE SHOWN DOES NOT REFLECT THE DEDUCTION OF TAXES, IF ANY, THAT A SHAREHOLDER WOULD PAY ON FUND DISTRIBUTIONS OR THE REDEMPTION OF FUND SHARES. GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT (For the period from the commencement of the fund's investment operations, January 2, 1997, through August 31, 2005. Index information is from January 1, 1997.) MFS New Discovery Russell 2000 Fund -- Class A Growth Index 1/97 $ 9,425 $10,000 8/97 12,318 11,394 8/98 11,718 8,396 8/99 16,222 12,033 8/00 28,653 16,734 8/01 22,242 10,887 8/02 16,493 8,054 8/03 20,042 10,865 8/04 18,611 11,232 8/05 23,178 13,873 TOTAL RETURNS THROUGH 8/31/05 AVERAGE ANNUAL WITHOUT SALES CHARGE Share class Class inception date 1-yr 5-yr Life* - ----------------------------------------------------------------------------- A 1/02/97 24.54% -4.15% 10.95% - ----------------------------------------------------------------------------- B 11/03/97 23.76% -4.78% 10.31% - ----------------------------------------------------------------------------- C 11/03/97 23.82% -4.78% 10.32% - ----------------------------------------------------------------------------- I 1/02/97 24.98% -3.81% 11.34% - ----------------------------------------------------------------------------- R** 12/31/02 24.37% -4.22% 10.90% - ----------------------------------------------------------------------------- R1 4/01/05 24.04% -4.23% 10.90% - ----------------------------------------------------------------------------- R2 4/01/05 24.12% -4.22% 10.91% - ----------------------------------------------------------------------------- R3** 10/31/03 24.13% -4.29% 10.86% - ----------------------------------------------------------------------------- R4 4/01/05 24.46% -4.16% 10.94% - ----------------------------------------------------------------------------- R5 4/01/05 24.61% -4.14% 10.96% - ----------------------------------------------------------------------------- 529A 7/31/02 24.20% -4.29% 10.86% - ----------------------------------------------------------------------------- 529B 7/31/02 23.43% -4.67% 10.60% - ----------------------------------------------------------------------------- 529C 7/31/02 23.41% -4.69% 10.59% - ----------------------------------------------------------------------------- AVERAGE ANNUAL Comparative benchmarks - ----------------------------------------------------------------------------- Average small-cap growth fund+ 24.16% -3.48% 7.42% - ----------------------------------------------------------------------------- Russell 2000 Growth Index# 23.51% -3.68% 3.85% - ----------------------------------------------------------------------------- AVERAGE ANNUAL WITH SALES CHARGE Share class - ----------------------------------------------------------------------------- A 17.38% -5.28% 10.19% - ----------------------------------------------------------------------------- B 19.76% -5.10% 10.31% - ----------------------------------------------------------------------------- C 22.82% -4.78% 10.32% - ----------------------------------------------------------------------------- 529A 17.06% -5.42% 10.10% - ----------------------------------------------------------------------------- 529B 19.43% -4.98% 10.60% - ----------------------------------------------------------------------------- 529C 22.41% -4.69% 10.59% - ----------------------------------------------------------------------------- Class I, R, R1, R2, R3, R4, and R5 shares do not have a sales charge. Please see Notes to Performance Summary for more details. * For the period from the commencement of the fund's investment operations, January 2, 1997, through August 31, 2005. Index information is from January 1, 1997. ** Effective April 1, 2005, Class R1 shares have been renamed "Class R shares" and Class R2 shares have been renamed "Class R3 shares." + Source: Lipper Inc., an independent firm that reports mutual fund performance. # Source: Standard & Poor's Micropal, Inc. INDEX DEFINITION Russell 2000 Growth Index - is constructed to provide a comprehensive barometer for growth securities in the small-cap segment of the U.S. equity universe. Companies in this index generally have higher price-to-book ratios and higher forecasted growth values. It is not possible to invest directly in an index. NOTES TO PERFORMANCE SUMMARY Class A and 529A results including sales charge reflect the deduction of the maximum 5.75% sales charge. Class B and 529B results including sales charge reflect the deduction of the applicable contingent deferred sales charge (CDSC), which declines over six years from 4% to 0%. Class C and 529C results including sales charge (assuming redemption within one year from the end of the prior month of purchase) reflect the deduction of the 1% CDSC. Class R shares have no initial sales charge or CDSC and are available only to existing Class R shareholders. Class I, R1, R2, R3, R4, and R5 shares have no initial sales charge or CDSC. Class I shares are only available to certain eligible investors, and Class R1, R2, R3, R4, and R5 shares are only available to certain retirement plans. Class 529 shares are only available in conjunction with qualified tuition programs, such as the MFS 529 Savings Plan. There also is an additional annual fee, which is detailed in the program description, on qualified tuition programs. If this fee was reflected, the performance for Class 529 shares would have been lower. This annual fee is waived for Oregon residents and for those accounts with assets of $25,000 or more. Performance for share classes offered after Class A shares includes the performance of the fund's Class A shares for periods prior to their offering. This blended class performance has been adjusted to take into account differences in sales loads, if any, applicable to these share classes, but has not been adjusted to take into account differences in class specific operating expenses (such as Rule 12b-1 fees). Compared to performance these share classes would have experienced had they been offered for the entire period, the use of blended performance generally results in higher performance for share classes with higher operating expenses than the share class to which it is blended, and lower performance for share classes with lower operating expenses than the share class to which it is blended. Performance results reflect any applicable expense subsidies and waivers in effect during the periods shown. Without such subsidies and waivers the fund's performance results would be less favorable. Please see the prospectus and financial statements for complete details. The performance shown reflects a non-recurring accrual made to the fund on July 28, 2004, relating to MFS' revenue sharing settlement with the Securities and Exchange Commission, without which the performance would have been lower. The proceeds were paid to the fund on February 16, 2005. From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. EXPENSE TABLE FUND EXPENSES BORNE BY THE SHAREHOLDERS DURING THE PERIOD, MARCH 1, 2005 THROUGH AUGUST 31, 2005. As a shareholder of the fund, you incur two types of costs: (1) transaction costs, including sales charges (loads) on certain purchase or redemption payments and redemption fees on certain exchanges and redemptions, and (2) ongoing costs, including management fees; distribution and service (12b-1) fees; and other fund expenses. This example is intended to help you understand your ongoing costs (in dollars) of investing in the fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 invested at the beginning of the period and held for the entire period March 1, 2005 through August 31, 2005. ACTUAL EXPENSES The first line for each share class in the table below provides information about actual account values and actual expenses. You may use the information in this line, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading entitled "Expenses Paid During Period" to estimate the expenses you paid on your account during this period. HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES The second line for each share class in the table below provides information about hypothetical account values and hypothetical expenses based on the fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as sales charges (loads) or redemption fees. Therefore, the second line for each share class in the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher. - -------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period** Expense Account Value Account Value 3/01/05- Share Class Ratio 3/01/05 8/31/05 8/31/05 - -------------------------------------------------------------------------------- Actual 1.47% $1,000.00 $1,077.40 $ 7.70 A --------------------------------------------------------------------- Hypothetical* 1.47% $1,000.00 $1,017.80 $ 7.48 - -------------------------------------------------------------------------------- Actual 2.12% $1,000.00 $1,074.30 $11.08 B ---------------------------------------------------------------------- Hypothetical* 2.12% $1,000.00 $1,014.52 $10.76 - -------------------------------------------------------------------------------- Actual 2.12% $1,000.00 $1,074.20 $11.08 C --------------------------------------------------------------------- Hypothetical* 2.12% $1,000.00 $1,014.52 $10.76 - -------------------------------------------------------------------------------- Actual 1.14% $1,000.00 $1,079.20 $ 5.97 I --------------------------------------------------------------------- Hypothetical* 1.14% $1,000.00 $1,019.46 $ 5.80 - -------------------------------------------------------------------------------- R Actual 1.62% $1,000.00 $1,077.00 $ 8.48 (formerly --------------------------------------------------------------------- R1) Hypothetical* 1.62% $1,000.00 $1,017.04 $ 8.24 - -------------------------------------------------------------------------------- Actual 2.34% $1,000.00 $1,073.10 $12.23 R1 --------------------------------------------------------------------- Hypothetical* 2.34% $1,000.00 $1,013.41 $11.88 - -------------------------------------------------------------------------------- Actual 2.04% $1,000.00 $1,073.70 $10.66 R2 --------------------------------------------------------------------- Hypothetical* 2.04% $1,000.00 $1,014.92 $10.36 - -------------------------------------------------------------------------------- R3 Actual 1.87% $1,000.00 $1,075.20 $ 9.78 (formerly --------------------------------------------------------------------- R2) Hypothetical* 1.87% $1,000.00 $1,015.78 $ 9.50 - -------------------------------------------------------------------------------- Actual 1.55% $1,000.00 $1,076.70 $ 8.11 R4 --------------------------------------------------------------------- Hypothetical* 1.55% $1,000.00 $1,017.39 $ 7.88 - -------------------------------------------------------------------------------- Actual 1.24% $1,000.00 $1,078.00 $ 6.49 R5 --------------------------------------------------------------------- Hypothetical* 1.24% $1,000.00 $1,018.95 $ 6.31 - -------------------------------------------------------------------------------- Actual 1.72% $1,000.00 $1,075.90 $ 9.00 529A --------------------------------------------------------------------- Hypothetical* 1.72% $1,000.00 $1,016.53 $ 8.74 - -------------------------------------------------------------------------------- Actual 2.37% $1,000.00 $1,072.00 $12.38 529B --------------------------------------------------------------------- Hypothetical* 2.37% $1,000.00 $1,013.26 $12.03 - -------------------------------------------------------------------------------- Actual 2.37% $1,000.00 $1,072.00 $12.38 529C --------------------------------------------------------------------- Hypothetical* 2.37% $1,000.00 $1,013.26 $12.03 - -------------------------------------------------------------------------------- * 5% class return per year before expenses. ** Expenses paid is equal to each class' annualized expense ratio, as shown above, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year. Expenses paid do not include any applicable sales charges (loads) or redemption fees. If these transaction costs had been included, your costs would have been higher. The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Stocks - 99.9% - --------------------------------------------------------------------------------------------------- ISSUER SHARES $ VALUE - --------------------------------------------------------------------------------------------------- Apparel Manufacturers - 0.5% - --------------------------------------------------------------------------------------------------- Columbia Sportswear Co.^* 47,440 $ 2,201,216 Maidenform Brands, Inc.* 162,090 2,674,485 -------------- $ 4,875,701 - --------------------------------------------------------------------------------------------------- Banks & Credit Companies - 4.9% - --------------------------------------------------------------------------------------------------- BankUnited Financial Corp., "A"^ 229,810 $ 5,423,516 Collegiate Funding Services, Inc.^* 329,118 4,900,567 FirstCity Financial Corp.^* 131,660 1,468,009 Intervest Bancshares Corp.^* 68,780 1,471,204 Investors Financial Services Corp.^ 259,000 9,096,080 MetroCorp Bancshares, Inc. 71,015 1,679,505 Nelnet, Inc., "A"* 15,900 569,220 New York Community Bancorp, Inc. 167,000 2,935,860 Signature Bank* 441,200 13,231,588 Sterling Bancshares, Inc.^ 558,920 8,378,211 -------------- $ 49,153,760 - --------------------------------------------------------------------------------------------------- Biotechnology - 3.9% - --------------------------------------------------------------------------------------------------- Advanced Life Sciences Holdings* 309,200 $ 1,620,208 Affymetrix, Inc.^* 121,480 6,012,045 Applera Corp.* 402,260 4,722,532 CV Therapeutics, Inc.^* 183,980 4,998,737 Cypress Bioscience, Inc.^* 74,090 1,019,478 Encysive Pharmaceuticals, Inc.^* 352,220 4,360,484 Gen-Probe, Inc.* 197,090 8,971,537 Keryx Biopharmaceuticals, Inc.^* 150,970 2,530,257 Neurochem, Inc.^* 147,370 1,680,018 Vertex Pharmaceuticals, Inc.* 168,540 3,101,136 -------------- $ 39,016,432 - --------------------------------------------------------------------------------------------------- Broadcast & Cable TV - 1.9% - --------------------------------------------------------------------------------------------------- ADVO, Inc.^ 142,180 $ 4,654,973 R.H. Donnelley Corp.* 115,022 7,394,764 Radio One, Inc., "A"* 517,490 7,286,259 -------------- $ 19,335,996 - --------------------------------------------------------------------------------------------------- Brokerage & Asset Managers - 1.0% - --------------------------------------------------------------------------------------------------- Affiliated Managers Group, Inc.^* 50,090 $ 3,637,035 Janus Capital Group, Inc.^ 226,010 3,193,521 MarketAxess Holdings, Inc.^* 322,920 3,613,475 -------------- $ 10,444,031 - --------------------------------------------------------------------------------------------------- Business Services - 11.5% - --------------------------------------------------------------------------------------------------- Alliance Data Systems Corp.^* 162,230 $ 6,825,016 Bright Horizons Family Solutions, Inc.^* 180,170 7,084,284 Concur Technologies, Inc.^* 396,340 4,696,629 Corporate Executive Board Co.^ 102,770 8,300,733 CoStar Group, Inc.^* 203,390 9,510,516 Euronet Worldwide, Inc.^* 258,100 7,231,962 Getty Images, Inc.^* 64,840 5,549,656 Harris Interactive, Inc.* 1,708,570 7,175,994 Heartland Payment Systems, Inc.* 250,530 6,358,451 Hewitt Associates, Inc., "A"^* 268,300 7,780,700 SIRVA, Inc.^* 953,990 9,625,759 Stamps.com, Inc.^* 137,040 2,377,644 Ultimate Software Group, Inc.^* 622,610 11,362,633 Universal Technical Institute, Inc.* 368,920 11,809,129 Wright Express Corp.* 411,540 9,053,880 -------------- $ 114,742,986 - --------------------------------------------------------------------------------------------------- Chemicals - 0.9% - --------------------------------------------------------------------------------------------------- Nalco Holding Co.^* 290,400 $ 5,314,320 UAP Holding Corp.^ 212,770 3,651,133 -------------- $ 8,965,453 - --------------------------------------------------------------------------------------------------- Computer Software - 7.6% - --------------------------------------------------------------------------------------------------- Kronos, Inc.^* 170,090 $ 7,370,000 MicroStrategy, Inc., "A"^* 226,280 17,423,560 NAVTEQ Corp.^* 168,920 7,861,537 Open Solutions, Inc.^* 552,190 12,468,450 Opsware, Inc.^* 2,240,170 10,349,585 TIBCO Software, Inc.^* 2,652,300 20,263,572 -------------- $ 75,736,704 - --------------------------------------------------------------------------------------------------- Computer Software - Systems - 1.3% - --------------------------------------------------------------------------------------------------- National Instruments Corp.^ 445,620 $ 12,651,152 - --------------------------------------------------------------------------------------------------- Construction - 1.3% - --------------------------------------------------------------------------------------------------- BlueLinx Holdings, Inc.^ 861,220 $ 9,714,562 Trex Co., Inc.^* 154,100 3,715,351 -------------- $ 13,429,913 - --------------------------------------------------------------------------------------------------- Consumer Goods & Services - 2.8% - --------------------------------------------------------------------------------------------------- Career Education Corp.^* 108,280 $ 4,244,576 Corinthian Colleges, Inc.^* 267,797 3,395,666 PlanetOut, Inc.^* 214,130 1,772,996 Strayer Education, Inc.^ 182,280 18,395,698 -------------- $ 27,808,936 - --------------------------------------------------------------------------------------------------- Containers - 0.6% - --------------------------------------------------------------------------------------------------- Sealed Air Corp.^* 118,600 $ 6,018,950 - --------------------------------------------------------------------------------------------------- Electrical Equipment - 4.0% - --------------------------------------------------------------------------------------------------- Dionex Corp.^* 233,170 $ 12,288,059 Littelfuse, Inc.^* 319,740 8,895,167 MSC Industrial Direct Co., Inc., "A"^ 519,870 18,195,450 -------------- $ 39,378,676 - --------------------------------------------------------------------------------------------------- Electronics - 10.0% - --------------------------------------------------------------------------------------------------- American Superconductor Corp.^* 653,020 $ 6,660,804 Amphenol Corp., "A" 117,780 4,995,050 Applied Films Corp.^* 678,530 15,355,134 ARM Holdings PLC 3,641,300 7,581,685 Dolby Laboratories, Inc., "A"* 5,590 89,440 DSP Group, Inc.^* 526,894 13,419,990 DTS, Inc.^* 139,110 2,549,886 Entegris, Inc.* 680,266 7,122,385 FormFactor, Inc.^* 336,130 9,132,652 Lipman Electronic Engineering Ltd.* 217,552 6,946,435 PMC-Sierra, Inc.^* 1,201,090 10,185,243 SanDisk Corp.^* 238,400 9,257,072 Stratasys, Inc.^* 44,400 1,257,852 Volterra Semiconductor Corp.^* 417,990 4,999,160 -------------- $ 99,552,788 - --------------------------------------------------------------------------------------------------- Energy - Independent - 0.2% - --------------------------------------------------------------------------------------------------- Evergreen Solar, Inc.^* 321,080 $ 2,263,614 - --------------------------------------------------------------------------------------------------- Engineering - Construction - 2.5% - --------------------------------------------------------------------------------------------------- InfraSource Services, Inc.^* 901,060 $ 13,515,900 Quanta Services, Inc.^* 918,400 11,020,800 -------------- $ 24,536,700 - --------------------------------------------------------------------------------------------------- Entertainment - 1.0% - --------------------------------------------------------------------------------------------------- DreamWorks Animation, Inc., "A"^* 381,900 $ 9,937,038 - --------------------------------------------------------------------------------------------------- Food & Non-Alcoholic Beverages - 1.3% - --------------------------------------------------------------------------------------------------- Diamond Foods, Inc.^* 362,290 $ 7,256,669 Reddy Ice Holdings, Inc. 252,830 5,483,883 -------------- $ 12,740,552 - --------------------------------------------------------------------------------------------------- Furniture & Appliances - 0.8% - --------------------------------------------------------------------------------------------------- Tempur-Pedic International, Inc.* 480,030 $ 7,714,082 - --------------------------------------------------------------------------------------------------- General Merchandise - 0.4% - --------------------------------------------------------------------------------------------------- 99 Cents Only Stores^* 336,910 $ 3,554,401 - --------------------------------------------------------------------------------------------------- Insurance - 0.3% - --------------------------------------------------------------------------------------------------- Republic Cos. Group, Inc.^* 185,170 $ 2,527,571 - --------------------------------------------------------------------------------------------------- Leisure & Toys - 4.5% - --------------------------------------------------------------------------------------------------- Activision, Inc.^* 785,670 $ 17,559,725 Take-Two Interactive Software, Inc.^* 254,040 6,046,152 THQ, Inc.^* 479,390 16,112,298 Ubisoft Entertainment S.A.* 92,260 4,748,541 -------------- $ 44,466,716 - --------------------------------------------------------------------------------------------------- Machinery & Tools - 2.1% - --------------------------------------------------------------------------------------------------- Cognex Corp.^ 719,510 $ 21,405,423 - --------------------------------------------------------------------------------------------------- Medical & Health Technology & Services - 1.8% - --------------------------------------------------------------------------------------------------- Allion Healthcare, Inc.* 406,530 $ 7,321,605 Allscripts Healthcare Solutions, Inc.^* 99,410 1,767,510 Cerner Corp.^* 62,960 4,958,730 Healthcare Services Group, Inc.^ 194,500 3,588,525 -------------- $ 17,636,370 - --------------------------------------------------------------------------------------------------- Medical Equipment - 16.9% - --------------------------------------------------------------------------------------------------- Adams Respiratory Therapeutics^* 209,210 $ 7,079,666 Adeza Biomedical Corp.^* 224,000 3,852,800 Align Technology, Inc.^* 670,810 4,568,216 Aspect Medical Systems, Inc.^* 803,010 24,379,384 Atricure, Inc.* 450,430 6,125,848 Conceptus, Inc.^* 1,300,330 13,627,458 Cyberonics, Inc.^* 153,240 5,866,027 Cytyc Corp.^* 641,595 16,007,795 DJ Orthopedics, Inc.^* 217,830 6,044,783 Fisher Scientific International, Inc.^* 91,960 5,929,581 IDEXX Laboratories, Inc.^* 184,495 11,815,060 Immucor, Inc.* 148,600 3,517,362 Merit Medical Systems, Inc.^* 413,000 7,215,110 Millipore Corp.^* 193,190 12,354,501 MWI Veterinary Supply, Inc.* 370,240 7,960,160 NeuroMetrix, Inc.^* 304,900 8,491,465 ResMed, Inc.^* 77,500 5,606,350 Thoratec Corp.^* 764,750 12,518,957 Ventana Medical Systems, Inc.^* 111,470 4,513,420 VNUS Medical Technologies, Inc.^* 72,941 743,998 -------------- $ 168,217,941 - --------------------------------------------------------------------------------------------------- Metals & Mining - 0.9% - --------------------------------------------------------------------------------------------------- Aber Diamond Corp.^ 252,750 $ 8,590,973 - --------------------------------------------------------------------------------------------------- Network & Telecom - 1.1% - --------------------------------------------------------------------------------------------------- Foundry Networks, Inc.* 538,800 $ 6,303,960 NeuStar, Inc., "A"* 155,040 4,265,150 -------------- $ 10,569,110 - --------------------------------------------------------------------------------------------------- Personal Computers & Peripherals - 1.3% - --------------------------------------------------------------------------------------------------- ScanSoft, Inc.^* 1,782,029 $ 8,785,403 Zebra Technologies Corp., "A"^* 115,720 4,323,299 -------------- $ 13,108,702 - --------------------------------------------------------------------------------------------------- Pharmaceuticals - 3.7% - --------------------------------------------------------------------------------------------------- Auxilium Pharmaceuticals, Inc.^* 587,712 $ 3,349,958 Endo Pharmaceuticals Holdings, Inc.^* 212,120 6,363,600 Inspire Pharmaceuticals, Inc.^* 342,530 3,065,644 Medicis Pharmaceutical Corp., "A"^ 496,670 16,891,747 NitroMed, Inc.^* 191,800 3,617,348 PRA International* 133,750 3,932,250 -------------- $ 37,220,547 - --------------------------------------------------------------------------------------------------- Printing & Publishing - 0.3% - --------------------------------------------------------------------------------------------------- Playboy Enterprises, Inc., "B"^* 212,330 $ 2,879,195 - --------------------------------------------------------------------------------------------------- Real Estate - 0.5% - --------------------------------------------------------------------------------------------------- CB Richard Ellis Group, Inc., "A"* 95,420 $ 4,652,679 - --------------------------------------------------------------------------------------------------- Restaurants - 2.1% - --------------------------------------------------------------------------------------------------- P.F. Chang's China Bistro, Inc.^* 203,250 $ 10,402,335 Red Robin Gourmet Burgers, Inc.^* 221,200 10,635,296 -------------- $ 21,037,631 - --------------------------------------------------------------------------------------------------- Specialty Stores - 6.0% - --------------------------------------------------------------------------------------------------- A.C. Moore Arts & Crafts, Inc.^* 469,160 $ 10,678,082 Aeropostale, Inc.^* 333,800 8,525,252 Audible, Inc.^* 273,700 3,284,400 CarMax, Inc.^* 184,700 5,884,542 Celebrate Express, Inc.* 109,200 1,401,036 Citi Trends, Inc.* 164,160 4,463,510 Hot Topic, Inc.^* 362,200 5,614,100 Restoration Hardware, Inc.^* 381,060 2,720,768 Sharper Image Corp.^* 366,180 4,921,459 Tuesday Morning Corp.^ 304,790 8,820,623 West Marine, Inc.^* 182,420 3,396,660 -------------- $ 59,710,432 - --------------------------------------------------------------------------------------------------- Total Stocks (Identified Cost, $910,334,764) $ 993,881,155 - --------------------------------------------------------------------------------------------------- Portfolio of Investments - continued Short-Term Obligation - 0.5% - --------------------------------------------------------------------------------------------------- ISSUER PAR AMOUNT $ VALUE - --------------------------------------------------------------------------------------------------- General Electric Capital Corp., 3.58%, due 9/01/05, at Amortized Cost< $ 4,812,000 $ 4,812,000 - --------------------------------------------------------------------------------------------------- Collateral for Securities Loaned - 23.5% - --------------------------------------------------------------------------------------------------- ISSUER SHARES $ VALUE - --------------------------------------------------------------------------------------------------- Navigator Securities Lending Prime Portfolio, at Cost and Net Asset Value 233,872,635 $ 233,872,635 - --------------------------------------------------------------------------------------------------- Total Investments (Identified Cost, $1,149,019,399)(S) $1,232,565,790 - --------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - (23.9)% (237,774,908) - --------------------------------------------------------------------------------------------------- Net Assets - 100.0% $ 994,790,882 - --------------------------------------------------------------------------------------------------- * Non-income producing security. ^ All or a portion of this security is on loan. < The rate shown represents an annualized yield at time of purchase. (S) As of August 31, 2005, the fund had two securities representing $12,330,226 and 1.2% of net assets that were fair valued in accordance with the policies adopted by the Board of Trustees. SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statement of Assets and Liabilities This statement represents your fund's balance sheet, which details the assets and liabilities composing the total value of the fund. AT 8/31/05 ASSETS - ------------------------------------------------------------------------------------------------------- Investments, at value, including $228,028,781 of securities on loan (identified cost, $1,149,019,399) $1,232,565,790 Cash 1,708,258 Receivable for investments sold 12,071,555 Receivable for fund shares sold 782,795 Interest and dividends receivable 112,829 Other assets 274 - ------------------------------------------------------------------------------------------------------- Total assets $1,247,241,501 - ------------------------------------------------------------------------------------------------------- LIABILITIES - ------------------------------------------------------------------------------------------------------- Payable for investments purchased $15,065,689 Payable for fund shares reacquired 2,934,657 Collateral for securities loaned, at value 233,872,635 Payable to affiliates Management fee 21,495 Shareholder servicing costs 356,165 Distribution and service fees 12,787 Administrative services fee 760 Program manager fees 15 Retirement plan administration and services fees 16 Accrued expenses and other liabilities 186,400 - ------------------------------------------------------------------------------------------------------- Total liabilities $252,450,619 - ------------------------------------------------------------------------------------------------------- Net assets $994,790,882 - ------------------------------------------------------------------------------------------------------- NET ASSETS CONSIST OF: - ------------------------------------------------------------------------------------------------------- Paid-in capital $1,182,067,058 Unrealized appreciation (depreciation) on investments and translation of assets and liabilities in foreign currencies 83,546,565 Accumulated net realized gain (loss) on investments and foreign currency transactions (270,810,005) Accumulated net investment loss (12,736) - ------------------------------------------------------------------------------------------------------- Net assets $994,790,882 - ------------------------------------------------------------------------------------------------------- Shares of beneficial interest outstanding 59,500,945 - ------------------------------------------------------------------------------------------------------- Class A shares - ------------------------------------------------------------------------------------------------------- Net assets $603,395,659 Shares outstanding 35,811,266 - ------------------------------------------------------------------------------------------------------- Net asset value per share $16.85 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25X$16.85) $17.88 - ------------------------------------------------------------------------------------------------------- Class B shares - ------------------------------------------------------------------------------------------------------- Net assets $203,721,513 Shares outstanding 12,577,519 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $16.20 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class C shares - ------------------------------------------------------------------------------------------------------- Net assets $58,454,010 Shares outstanding 3,604,293 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $16.22 - ------------------------------------------------------------------------------------------------------- Class I shares - ------------------------------------------------------------------------------------------------------- Net assets $107,841,915 Shares outstanding 6,231,683 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $17.31 - ------------------------------------------------------------------------------------------------------- Class R shares (formerly Class R1) - ------------------------------------------------------------------------------------------------------- Net assets $16,925,562 Shares outstanding 1,008,262 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $16.79 - ------------------------------------------------------------------------------------------------------- Class R1 shares - ------------------------------------------------------------------------------------------------------- Net assets $205,960 Shares outstanding 12,729 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $16.18 - ------------------------------------------------------------------------------------------------------- Class R2 shares - ------------------------------------------------------------------------------------------------------- Net assets $135,461 Shares outstanding 8,365 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $16.19 - ------------------------------------------------------------------------------------------------------- Class R3 shares (formerly Class R2) - ------------------------------------------------------------------------------------------------------- Net assets $1,572,810 Shares outstanding 94,048 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $16.72 - ------------------------------------------------------------------------------------------------------- Class R4 shares - ------------------------------------------------------------------------------------------------------- Net assets $333,625 Shares outstanding 19,816 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $16.84 - ------------------------------------------------------------------------------------------------------- Class R5 shares - ------------------------------------------------------------------------------------------------------- Net assets $56,055 Shares outstanding 3,325 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $16.86 - ------------------------------------------------------------------------------------------------------- Class 529A shares - ------------------------------------------------------------------------------------------------------- Net assets $1,637,349 Shares outstanding 97,863 - ------------------------------------------------------------------------------------------------------- Net asset value per share $16.73 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25X$16.73) $17.75 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class 529B shares - ------------------------------------------------------------------------------------------------------- Net assets $177,490 Shares outstanding 11,044 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $16.07 - ------------------------------------------------------------------------------------------------------- Class 529C shares - ------------------------------------------------------------------------------------------------------- Net assets $333,473 Shares outstanding 20,732 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $16.08 - ------------------------------------------------------------------------------------------------------- On sales of $50,000 or more, the offering price of Class A and Class 529A shares are reduced. A contingent deferred sales charge may be imposed on redemptions of Class A, Class B, Class C, Class 529B, and Class 529C shares. SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statement of Operations This statement describes how much your fund received in investment income and paid in expenses. It also describes any gains and/or losses generated by fund operations. YEAR ENDED 8/31/05 NET INVESTMENT LOSS - ------------------------------------------------------------------------------------------------------ Income Dividends $3,915,627 Income on securities loaned 547,819 Interest 146,136 Foreign taxes withheld (31,929) - ------------------------------------------------------------------------------------------------------ Total investment income $4,577,653 - ------------------------------------------------------------------------------------------------------ Expenses Management fee $9,969,091 Distribution and service fees 5,393,020 Program manager fees 4,086 Shareholder servicing costs 2,478,134 Administrative services fee 107,569 Retirement plan administration and services fees 2,689 Trustees' compensation 31,559 Custodian fee 312,073 Printing 94,816 Postage 59,344 Auditing fees 49,092 Legal fees 41,730 Shareholder solicitation expenses 95,210 Miscellaneous 331,476 - ------------------------------------------------------------------------------------------------------ Total expenses $18,969,889 - ------------------------------------------------------------------------------------------------------ Fees paid indirectly (127,078) Reduction of expenses by investment adviser (1,110,472) - ------------------------------------------------------------------------------------------------------ Net expenses $17,732,339 - ------------------------------------------------------------------------------------------------------ Net investment loss $(13,154,686) - ------------------------------------------------------------------------------------------------------ REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS - ------------------------------------------------------------------------------------------------------ Realized gain (loss) (identified cost basis) Investment transactions $148,967,926 Foreign currency transactions (52,072) - ------------------------------------------------------------------------------------------------------ Net realized gain (loss) on investments and foreign currency transactions $148,915,854 - ------------------------------------------------------------------------------------------------------ Change in unrealized appreciation (depreciation) Investments $113,723,563 Translation of assets and liabilities in foreign currencies 174 - ------------------------------------------------------------------------------------------------------ Net unrealized gain (loss) on investments and foreign currency translation $113,723,737 - ------------------------------------------------------------------------------------------------------ Net realized and unrealized gain (loss) on investments and foreign currency $262,639,591 - ------------------------------------------------------------------------------------------------------ Change in net assets from operations $249,484,905 - ------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statements of Changes in Net Assets This statement describes the increases and/or decreases in net assets resulting from operations, any distributions, and any shareholder transactions. FOR YEARS ENDED 8/31 2005 2004 CHANGE IN NET ASSETS - ------------------------------------------------------------------------------------------------------- FROM OPERATIONS - ------------------------------------------------------------------------------------------------------- Net investment loss $(13,154,686) $(20,299,003) Net realized gain (loss) on investments and foreign currency transactions 148,915,854 210,953,469 Net unrealized gain (loss) on investments and foreign currency translation 113,723,737 (288,980,394) - ------------------------------------------------------------------------------------------------------- Change in net assets from operations $249,484,905 $(98,325,928) - ------------------------------------------------------------------------------------------------------- Change in net assets from fund share transactions $(489,681,518) $(120,252,572) - ------------------------------------------------------------------------------------------------------- Redemption fees $12,723 $1,904 - ------------------------------------------------------------------------------------------------------- Total change in net assets $(240,183,890) $(218,576,596) - ------------------------------------------------------------------------------------------------------- NET ASSETS - ------------------------------------------------------------------------------------------------------- At beginning of period $1,234,974,772 $1,453,551,368 At end of period (including accumulated net investment loss of $12,736 and $13,706, respectively) $994,790,882 $1,234,974,772 - ------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Financial Highlights The financial highlights table is intended to help you understand the fund's financial performance for the past 5 years (or, if shorter, the period of the fund's operation). Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund (assuming reinvestment of all distributions) held for the entire period. This information has been audited by the fund's independent registered public accounting firm, whose report, together with the fund's financial statements, are included in this report. CLASS A YEARS ENDED 8/31 -------------------------------------------------------------------------------------- 2005 2004 2003 2002 2001 Net asset value, beginning of period $13.53 $14.57 $11.99 $16.17 $25.00 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.16) $(0.18) $(0.13) $(0.18) $(0.20) Net realized and unrealized gain (loss) on investments and foreign currency 3.48 (0.86) 2.71 (4.00) (5.02) - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.32 $(1.04) $2.58 $(4.18) $(5.22) - ----------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $-- $-- $-- $(0.00)+++ $(3.53) From paid-in capital -- -- -- -- (0.08) - ----------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $-- $-- $-- $(0.00)+++ $(3.61) - ----------------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital# $0.00+++ $0.00+++ $-- $-- $-- - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.85 $13.53 $14.57 $11.99 $16.17 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 24.54*** (7.14)+*** 21.52 (25.85) (22.37) - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.57 1.51 1.58 1.58 1.52 Expenses after expense reductions## 1.47 1.51 1.58 1.58 1.52 Net investment loss (1.05) (1.20) (1.11) (1.21) (1.06) Portfolio turnover 112 122 104 102 49 Net assets at end of period (000 Omitted) $603,396 $824,708 $1,004,473 $822,193 $1,050,554 - ----------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS B YEARS ENDED 8/31 ------------------------------------------------------------------------------------ 2005 2004 2003 2002 2001 Net asset value, beginning of period $13.09 $14.19 $11.75 $15.95 $24.71 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.25) $(0.27) $(0.21) $(0.28) $(0.32) Net realized and unrealized gain (loss) on investments and foreign currency 3.36 (0.83) 2.65 (3.92) (4.97) - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.11 $(1.10) $2.44 $(4.20) $(5.29) - ----------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $-- $-- $-- $(0.00)+++ $(3.39) From paid-in capital -- -- -- -- (0.08) - ----------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $-- $-- $-- $(0.00)+++ $(3.47) - ----------------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital# $0.00+++ $0.00+++ $-- $-- $-- - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.20 $13.09 $14.19 $11.75 $15.95 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 23.76*** (7.75)+*** 20.77 (26.33) (22.92) - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.22 2.15 2.23 2.23 2.17 Expenses after expense reductions## 2.12 2.15 2.23 2.23 2.17 Net investment loss (1.70) (1.84) (1.76) (1.86) (1.70) Portfolio turnover 112 122 104 102 49 Net assets at end of period (000 Omitted) $203,722 $231,653 $271,580 $232,792 $352,886 - ----------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS C YEARS ENDED 8/31 -------------------------------------------------------------------------------- 2005 2004 2003 2002 2001 Net asset value, beginning of period $13.10 $14.21 $11.77 $15.97 $24.73 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.25) $(0.27) $(0.21) $(0.28) $(0.32) Net realized and unrealized gain (loss) on investments and foreign currency 3.37 (0.84) 2.65 (3.92) (4.97) - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.12 $(1.11) $2.44 $(4.20) $(5.29) - ----------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $-- $-- $-- $(0.00)+++ $(3.39) From paid-in capital -- -- -- -- (0.08) - ----------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $-- $-- $-- $(0.00)+++ $(3.47) - ----------------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital# $0.00+++ $0.00+++ $-- $-- $-- - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.22 $13.10 $14.21 $11.77 $15.97 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 23.82*** (7.81)+*** 20.73 (26.34) (22.87) - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.22 2.15 2.23 2.23 2.17 Expenses after expense reductions## 2.12 2.15 2.23 2.23 2.17 Net investment loss (1.70) (1.84) (1.76) (1.86) (1.70) Portfolio turnover 112 122 104 102 49 Net assets at end of period (000 Omitted) $58,454 $67,102 $84,391 $87,271 $136,530 - ----------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS I YEARS ENDED 8/31 ----------------------------------------------------------------------------- 2005 2004 2003 2002 2001 Net asset value, beginning of period $13.85 $14.86 $12.19 $16.37 $25.26 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.11) $(0.13) $(0.09) $(0.13) $(0.13) Net realized and unrealized gain (loss) on investments and foreign currency 3.57 (0.88) 2.76 (4.05) (5.09) - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.46 $(1.01) $2.67 $(4.18) $(5.22) - ----------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $-- $-- $-- $(0.00)+++ $(3.59) From paid-in capital -- -- -- -- (0.08) - ----------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $-- $-- $-- $(0.00)+++ $(3.67) - ----------------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital# $0.00+++ $0.00+++ $-- $-- $-- - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $17.31 $13.85 $14.86 $12.19 $16.37 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%)& 24.98*** (6.80)+*** 21.90 (25.58) (22.09) - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.23 1.16 1.23 1.23 1.17 Expenses after expense reductions## 1.13 1.16 1.23 1.23 1.17 Net investment loss (0.70) (0.84) (0.75) (0.86) (0.71) Portfolio turnover 112 122 104 102 49 Net assets at end of period (000 Omitted) $107,842 $103,031 $90,872 $47,641 $52,121 - ----------------------------------------------------------------------------------------------------------------------------- CLASS R (FORMERLY CLASS R1) YEARS ENDED 8/31 ----------------------------------------------- 2005 2004 2003** Net asset value, beginning of period $13.50 $14.57 $11.38### - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.18) $(0.20) $(0.11) Net realized and unrealized gain (loss) on investments and foreign currency 3.47 (0.87) 3.30 - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.29 $(1.07) $3.19 - ----------------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital# $0.00+++ $0.00+++ $-- - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.79 $13.50 $14.57 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%)& 24.37*** (7.34)+*** 28.03###++ - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.73 1.66 1.78+ Expenses after expense reductions## 1.63 1.66 1.78+ Net investment loss (1.17) (1.32) (1.26)+ Portfolio turnover 112 122 104 Net assets at end of period (000 Omitted) $16,926 $7,262 $1,824 - ----------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R1 CLASS R2 YEAR ENDED YEAR ENDED 8/31/05** 8/31/05** Net asset value, beginning of period $14.50 $14.50 - ---------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------- Net investment loss $(0.10) $(0.08) Net realized and unrealized gain (loss) on investments and foreign currency 1.78 1.77 - ---------------------------------------------------------------------------------------------------------- Total from investment operations $1.68 $1.69 - ---------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital# $0.00+++ $0.00+++ - ---------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.18 $16.19 - ---------------------------------------------------------------------------------------------------------- Total return (%)& 11.59++*** 11.66++*** - ---------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.43+ 2.12+ Expenses after expense reductions## 2.33+ 2.02+ Net investment loss (1.69)+ (1.02)+ Portfolio turnover 112 112 Net assets at end of period (000 Omitted) $206 $135 - ---------------------------------------------------------------------------------------------------------- CLASS R3 (FORMERLY CLASS R2) YEARS ENDED 8/31 -------------------------------- 2005 2004** Net asset value, beginning of period $13.47 $15.35### - ---------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------- Net investment loss $(0.22) $(0.11) Net realized and unrealized gain (loss) on investments and foreign currency 3.47 (1.77) - ---------------------------------------------------------------------------------------------------------- Total from investment operations $3.25 $(1.88) - ---------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital# $0.00+++ $0.00+++ - ---------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.72 $13.47 - ---------------------------------------------------------------------------------------------------------- Total return (%)& 24.13*** (12.25)###+++*** - ---------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.98 1.73+ Expenses after expense reductions## 1.88 1.73+ Net investment loss (1.42) (1.23)+ Portfolio turnover 112 122 Net assets at end of period (000 Omitted) $1,573 $454 - ---------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R4 CLASS R5 YEAR ENDED YEAR ENDED 8/31/05** 8/31/05** Net asset value, beginning of period $15.04 $15.04 - ----------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.04) $(0.04) Net realized and unrealized gain (loss) on investments and foreign currency 1.84 1.86 - ----------------------------------------------------------------------------------------------------------------------- Total from investment operations $1.80 $1.82 - ----------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital# $0.00+++ $0.00+++ - ----------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.84 $16.86 - ----------------------------------------------------------------------------------------------------------------------- Total return (%)& 11.97++*** 12.10++*** - ----------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.63+ 1.32+ Expenses after expense reductions## 1.53+ 1.22+ Net investment loss (0.66)+ (0.67)+ Portfolio turnover 112 112 Net assets at end of period (000 Omitted) $334 $56 - ----------------------------------------------------------------------------------------------------------------------- Financial Highlights - continued CLASS 529A YEARS ENDED 8/31 ------------------------------------------------------------ 2005 2004 2003 2002** Net asset value, beginning of period $13.47 $14.53 $11.99 $11.95### - ----------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.20) $(0.21) $(0.16) $(0.01) Net realized and unrealized gain (loss) on investments and foreign currency 3.46 (0.85) 2.70 0.05 - ----------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.26 $(1.06) $2.54 $0.04 - ----------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital# $0.00+++ $0.00+++ $-- $-- - ----------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.73 $13.47 $14.53 $11.99 - ----------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 24.20*** (7.30)+*** 21.18 0.33###++ - ----------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.83 1.75 1.84 1.83+ Expenses after expense reductions## 1.73 1.75 1.84 1.83+ Net investment loss (1.27) (1.43) (1.35) (1.20)+ Portfolio turnover 112 122 104 102 Net assets at end of period (000 Omitted) $1,637 $390 $180 $10 - ----------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529B YEARS ENDED 8/31 ---------------------------------------------------------------- 2005 2004 2003 2002** Net asset value, beginning of period $13.02 $14.15 $11.75 $11.71### - ----------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.28) $(0.30) $(0.24) $(0.02) Net realized and unrealized gain (loss) on investments and foreign currency 3.33 (0.83) 2.64 0.06 - ----------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.05 $(1.13) $2.40 $0.04 - ----------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital# $0.00+++ $0.00+++ $-- $-- - ----------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.07 $13.02 $14.15 $11.75 - ----------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 23.43*** (7.99)+*** 20.43 0.34###++ - ----------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.47 2.40 2.49 2.48+ Expenses after expense reductions## 2.37 2.40 2.49 2.48+ Net investment loss (1.93) (2.07) (1.99) (1.87)+ Portfolio turnover 112 122 104 102 Net assets at end of period (000 Omitted) $177 $135 $84 $6 - ----------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529C YEARS ENDED 8/31 ------------------------------------------------------------ 2005 2004 2003 2002** Net asset value, beginning of period $13.03 $14.16 $11.77 $11.73### - ----------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.28) $(0.31) $(0.24) $(0.02) Net realized and unrealized gain (loss) on investments and foreign currency 3.33 (0.82) 2.63 0.06 - ----------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.05 $(1.13) $2.39 $0.04 - ----------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital# $0.00+++ $0.00+++ $-- $-- - ----------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.08 $13.03 $14.16 $11.77 - ----------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 23.41*** (7.98)+*** 20.31 0.34###++ - ----------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.47 2.40 2.50 2.48+ Expenses after expense reductions## 2.37 2.40 2.50 2.48+ Net investment loss (1.93) (2.08) (1.99) (1.88)+ Portfolio turnover 112 122 104 102 Net assets at end of period (000 Omitted) $333 $240 $147 $5 - ----------------------------------------------------------------------------------------------------------------------- ** For the period from the class' inception, December 31, 2002 (Class R), July 31, 2002 (Classes 529A, 529B, and 529C), October 31, 2003 (Class R3) and April 1, 2005 (Classes R1, R2, R4, and R5) through the stated period end. *** Certain expenses have been reduced without which performance would have been lower. + Annualized. ++ Not annualized. +++ Per share amount was less than $0.01. # Per share data are based on average shares outstanding. ## Ratios do not reflect reductions from fees paid indirectly. ### The net asset values and total returns previously reported as $11.43 and 27.47% (Class R), $15.23 and (11.56%) (Class R3), $11.85 and 1.18% (Class 529A), $11.62 and 1.12% (Class 529B), and $11.64 and 1.12% (Class 529C), respectively, have been revised to reflect the net asset value from the day prior to the class' inception date. The net asset values and total returns previously reported were from inception date, the date the share classes were first available to public shareholders. + The fund's net asset value and total return calculation include a non-recurring accrual recorded as a result of an administrative proceeding regarding disclosure of brokerage allocation practices in connection with fund sales. The non-recurring accrual did not have a material impact on the net asset value per share based on the shares outstanding on the day the proceeds were recorded. (+) Total returns do not include any applicable sales charges. & From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. SEE NOTES TO FINANCIAL STATEMENTS NOTES TO FINANCIAL STATEMENTS (1) BUSINESS AND ORGANIZATION MFS New Discovery Fund (the fund) is a diversified series of MFS Series Trust I (the trust). The trust is organized as a Massachusetts business trust and is registered under the Investment Company Act of 1940, as amended, as an open- end management investment company. (2) SIGNIFICANT ACCOUNTING POLICIES GENERAL - The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The fund can invest in foreign securities. Investments in foreign securities are vulnerable to the effects of changes in the relative values of the local currency and the U.S. dollar and to the effects of changes in each country's legal, political, and economic environment. INVESTMENT VALUATIONS - Equity securities in the fund's portfolio for which market quotations are available are valued at the last sale or official closing price as reported by an independent pricing service on the primary market or exchange on which they are primarily traded, or at the last quoted bid price for securities in which there were no sales during the day. Equity securities traded over the counter are valued at the last sales price traded each day as reported by an independent pricing service, or to the extent there are no sales reported, such securities are valued on the basis of quotations obtained from brokers and dealers. Short-term obligations with a remaining maturity in excess of 60 days will be valued upon dealer-supplied valuations. All other short-term obligations in the fund's portfolio are valued at amortized cost, which approximates market value as determined by the Board of Trustees. Money market mutual funds are valued at net asset value. Investment valuations, other assets, and liabilities initially expressed in foreign currencies are converted each business day into U.S. dollars based upon current exchange rates. When pricing service information or market quotations are not readily available, securities are priced at fair value as determined under the direction of the Board of Trustees. For example, significant events (such as movement in the U.S. securities market, or other regional and local developments) may occur between the time that foreign markets close (where the security is principally traded) and the time that the fund calculates its net asset value (generally, the close of the NYSE) that may impact the value of securities traded in these foreign markets. In these cases, the fund may utilize information from an external vendor or other sources to adjust closing market quotations of foreign equity securities to reflect what it believes to be the fair value of the securities as of the fund's valuation time. Because the frequency of significant events is not predictable, fair valuation of foreign equity securities may occur on a frequent basis. REPURCHASE AGREEMENTS - The fund may enter into repurchase agreements with institutions that the fund's investment adviser has determined are creditworthy. Each repurchase agreement is recorded at cost. The fund requires that the securities collateral in a repurchase transaction be transferred to the custodian in a manner sufficient to enable the fund to obtain those securities in the event of a default under the repurchase agreement. The fund monitors, on a daily basis, the value of the collateral to ensure that its value, including accrued interest, is greater than amounts owed to the fund under each such repurchase agreement. The fund, along with other affiliated entities of Massachusetts Financial Services Company (MFS), may utilize a joint trading account for the purpose of entering into one or more repurchase agreements. FOREIGN CURRENCY TRANSLATION - Purchases and sales of foreign investments, income, and expenses are converted into U.S. dollars based upon currency exchange rates prevailing on the respective dates of such transactions. Gains and losses attributable to foreign currency exchange rates on sales of securities are recorded for financial statement purposes as net realized gains and losses on investments. Gains and losses attributable to foreign exchange rate movements on income and expenses are recorded for financial statement purposes as foreign currency transaction gains and losses. That portion of both realized and unrealized gains and losses on investments that results from fluctuations in foreign currency exchange rates is not separately disclosed. SECURITY LOANS - State Street Bank and Trust Company ("State Street"), as lending agent, may loan the securities of the fund to certain qualified institutions (the "Borrowers") approved by the fund. The loans are collateralized at all times by cash and/or U.S. Treasury securities in an amount at least equal to the market value of the securities loaned. State Street provides the fund with indemnification against Borrower default. The fund bears the risk of loss with respect to the investment of cash collateral. On loans collateralized by cash, the cash collateral is invested in a money market fund or short-term securities. A portion of the income generated upon investment of the collateral is remitted to the Borrowers, and the remainder is allocated between the fund and the lending agent. On loans collateralized by U.S. Treasury securities, a fee is received from the Borrower, and is allocated between the fund and the lending agent. The dividend and interest income earned on the securities loaned is accounted for in the same manner as other dividend and interest income. SHORT TERM FEES - For purchases made prior to July 1, 2004, the fund charges a 2% redemption fee (which is retained by the fund) on proceeds from Class A, Class B, Class C, and Class I shares redeemed or exchanged within 30 calendar days following their acquisition (either by purchase or exchange). For purchases made on or after July 1, 2004 and before April 1, 2005, the fund will charge a 2% redemption fee on proceeds from Class A, Class B, Class C, and Class I shares redeemed or exchanged within 5 business days following their acquisition. Due to systems limitations associated with the transition from applying a 30 calendar day redemption fee to a 5 business day redemption fee, the fund did not impose redemption fees with respect to purchases made in June 2004 followed by redemptions made in July 2004. Effective April 1, 2005, the fund will charge a 1% redemption fee on proceeds from Class A, Class B, Class C, and Class I shares redeemed or exchanged within 30 calendar days following their acquisition. Due to systems limitations associated with the transition from applying a 5 business day redemption fee to a 30 calendar day redemption fee, the fund did not impose redemption fees with respect to purchases made in March 2005 followed by redemptions made in April 2005. The fund may change the redemption fee period in the future, including in connection with Securities and Exchange Commission rule developments. See the fund's prospectus for details. Any redemption fees charged are accounted for as an addition to paid-in capital. INVESTMENT TRANSACTIONS AND INCOME - Investment transactions are recorded on the trade date. Interest income is recorded on the accrual basis. All premium and discount is amortized or accreted for financial statement purposes in accordance with U.S. generally accepted accounting principles. All discount is accreted for tax reporting purposes as required by federal income tax regulations. Dividends received in cash are recorded on the ex-dividend date. Dividend and interest payments received in additional securities are recorded on the ex-dividend or ex-interest date in an amount equal to the value of the security on such date. The fund may receive proceeds from litigation settlements involving its portfolio holdings. Any proceeds received are reflected in realized gain/loss in the Statement of Operations, or in unrealized gain/loss if the security is still held by the fund. FEES PAID INDIRECTLY - The fund's custody fee is reduced according to an arrangement that measures the value of cash deposited with the custodian by the fund. During the year ended August 31, 2005, the fund's custodian fees were reduced by $44,002 under this arrangement. The fund has entered into a commission recapture agreement, under which certain brokers will credit the fund a portion of the commissions generated, to offset certain expenses of the fund. For the year ended August 31, 2005, the fund's miscellaneous expenses were reduced by $83,076 under this agreement. These amounts are shown as a reduction of total expenses on the Statement of Operations. TAX MATTERS AND DISTRIBUTIONS - The fund's policy is to comply with the provisions of the Internal Revenue Code (the Code) applicable to regulated investment companies and to distribute to shareholders all of its net taxable income, including any net realized gain on investments. Accordingly, no provision for federal income or excise tax is provided. Distributions to shareholders are recorded on the ex-dividend date. The fund distinguishes between distributions on a tax basis and a financial reporting basis and only distributions in excess of tax basis earnings and profits are reported in the financial statements as distributions from paid-in capital. Differences in the recognition or classification of income between the financial statements and tax earnings and profits, which result in temporary over-distributions for financial statement purposes, are classified as distributions in excess of net investment income or net realized gains. Common types of book and tax differences that could occur include differences in accounting for foreign currency transactions, net operating losses, and wash sales. The fund paid no distributions for the years ended August 31, 2005 and August 31, 2004. During the year ended August 31, 2005, accumulated net investment loss decreased by $13,155,656, accumulated net realized loss on investments and foreign currency transactions decreased by $52,072, and paid-in capital decreased by $13,207,728 due to differences between book and tax accounting for foreign currency transactions and net operating losses. This change had no effect on the net assets or net asset value per share. As of August 31, 2005, the components of distributable earnings (accumulated losses) on a tax basis were as follows: Capital loss carryforward $(269,696,886) Unrealized appreciation (depreciation) 82,433,272 Other temporary differences (12,562) For federal income tax purposes, the capital loss carryforward may be applied against any net taxable realized gains of each succeeding year until the earlier of its utilization or expiration on August 31, 2011. MULTIPLE CLASSES OF SHARES OF BENEFICIAL INTEREST - The fund offers multiple classes of shares, which differ in their respective distribution and service fees. All shareholders bear the common expenses of the fund based on daily net assets of each class, without distinction between share classes. Dividends are declared separately for each class. Differences in per share dividend rates are generally due to differences in separate class expenses. Class B and Class 529B shares will convert to Class A and Class 529A shares, respectively, approximately eight years after purchase. (3) TRANSACTIONS WITH AFFILIATES INVESTMENT ADVISER - The fund has an investment advisory agreement with Massachusetts Financial Services Company (MFS) to provide overall investment advisory and administrative services, and general office facilities. The management fee is computed daily and paid monthly at an annual rate of 0.90% of the fund's average daily net assets. The investment adviser has contractually agreed to reduce its management fee to 0.80% for the first $1.5 billion of average daily net assets and 0.75% of average daily net assets in excess of $1.5 billion. This management fee reduction amounted to $1,105,289, which is shown as a reduction of total expenses in the Statement of Operations. This reduction in the management fee may be rescinded by MFS only with the approval of the fund's Board of Trustees. The management fee incurred for the year ended August 31, 2005 was equivalent to an annual effective rate of 0.80% of the fund's average daily net assets. DISTRIBUTOR - MFS Fund Distributors, Inc. (MFD), a wholly owned subsidiary of MFS, as distributor, received $52,764 and $1,062 for the year ended August 31, 2005, as its portion of the initial sales charge on sales of Class A and Class 529A shares of the fund, respectively. The Board of Trustees has adopted a distribution plan for certain class shares pursuant to Rule 12b-1 of the Investment Company Act of 1940. The fund's distribution plan provides that the fund will pay MFD for services provided by MFD and financial intermediaries in connection with the distribution and servicing of certain share classes. One component of the plan is a distribution fee paid to and retained by MFD. Another component of the plan is a service fee paid to MFD which subsequently pays a portion of this fee to financial intermediaries that enter into sales or service agreements with MFD, or its affiliates, based on the average daily net assets of accounts attributable to such intermediaries. Distribution Fee Plan Table: TOTAL ANNUAL SERVICE FEE DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE RETAINED AND SERVICE FEE RATE FEE RATE PLAN(1) RATE(2) BY MFD(3) FEE Class A 0.10% 0.25% 0.35% 0.35% $28,217 $2,432,385 Class B 0.75% 0.25% 1.00% 1.00% 3,587 2,238,347 Class C 0.75% 0.25% 1.00% 1.00% 1,628 643,850 Class R 0.25% 0.25% 0.50% 0.50% -- 64,685 Class R1 0.50% 0.25% 0.75% 0.75% 91 367 Class R2 0.25% 0.25% 0.50% 0.50% 61 170 Class R3 0.25% 0.25% 0.50% 0.50% 18 4,480 Class R4 0.00% 0.25% 0.25% 0.25% 30 120 Class 529A 0.25% 0.25% 0.50% 0.35% 274 4,162 Class 529B 0.75% 0.25% 1.00% 1.00% 15 1,580 Class 529C 0.75% 0.25% 1.00% 1.00% 57 2,874 - --------------------------------------------------------------------------------------------------------------------------- Total Distribution and Service Fees $5,393,020 (1) In accordance with the distribution plan for certain classes, the fund pays distribution and/or service fees up to these annual percentage rates of each class' average daily net assets. (2) The annual effective rates represent actual fees incurred under the distribution plan for the year ended August 31, 2005 based on each class' average daily net assets. 0.10% of the Class 529A distribution fee is currently being paid by the fund. Payment of the remaining 0.15% of the Class 529A distribution fee is not yet implemented and will commence on such date as the fund's Board of Trustees may determine. (3) For the year ended August 31, 2005, MFD retained these service fees. Certain Class A, Class C and Class 529C shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within 12 months of purchase. Class B and Class 529B shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within six years of purchase. MFD retained all contingent deferred sales charges. Contingent deferred sales charges imposed during the year ended August 31, 2005 were as follows: AMOUNT Class A $62,354 Class B 341,425 Class C 6,525 Class 529B 113 Class 529C -- The fund has entered into and may from time to time enter into contracts with program managers and other parties which administer the tuition programs through which an investment in the fund's 529 share classes is made. The fund has entered into an agreement with MFD pursuant to which MFD receives an annual fee of up to 0.35% from the fund based solely upon the value of the fund's 529 share classes attributable to tuition programs to which MFD, or a third party which contracts with MFD, provides administrative services. The current fee has been established at 0.25% annually of average net assets of the fund's 529 share classes. The fee may only be increased with the approval of the Board of Trustees who oversees the fund. The services provided by MFD, or a third party with which MFD contracts, include recordkeeping and tax reporting and account services, as well as services designed to maintain the program's compliance with the Internal Revenue Code and other regulatory requirements. Program manager fees for the year ended August 31, 2005, were as follows: AMOUNT Class 529A $2,973 Class 529B $395 Class 529C $718 ---------------------------------------------------------- Total Program Manager Fees $4,086 SHAREHOLDER SERVICING AGENT - The fund pays a portion of shareholder servicing costs to MFS Service Center, Inc. (MFSC), a wholly-owned subsidiary of MFS. MFSC receives a fee from the fund, for its services as shareholder servicing agent, set periodically under the supervision of the fund's Board of Trustees. For the year ended August 31, 2005, the fee was $1,129,346, which equated to 0.1019% annually of the fund's average daily net assets. MFSC also receives payment from the fund for out-of-pocket and sub-accounting expenses paid by MFSC on behalf of the fund. For the year ended August 31, 2005, these costs amounted to $861,808. ADMINISTRATOR - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to certain funds for which MFS acts as investment adviser. Under an administrative services agreement, the funds may partially reimburse MFS the costs incurred to provide these services, subject to review and approval by the Board of Trustees. Each fund is charged a fixed amount plus a fee based on calendar year average net assets. Effective July 1, 2005, the fund's annual fixed amount is $10,000. The administrative services fee incurred for the year ended August 31, 2005 was equivalent to an annual effective rate of 0.0097% of the fund's average daily net assets. In addition to the administrative services provided by MFS to the fund as described above, MFS is responsible for providing certain retirement plan administration and services with respect to certain Class R shares. These services include various administrative, recordkeeping, and communication/ educational services with respect to the retirement plans which invest in these shares, and may be provided directly by MFS or by a third party. For the year ended August 31, 2005, the fund paid an annual retirement plan administration and services fee up to the following annual percentage rates of each class' average daily net assets: AMOUNT FEE TOTAL RETAINED RATE AMOUNT BY MFS Class R1 0.45% $220 $169 Class R2 0.40% 136 101 Class R3 (formerly Class R2) 0.25% 2,240 1,184 Class R4 0.15% 72 24 Class R5 0.10% 21 19 - ------------------------------------------------------------------------------- Total Retirement Plan Administration and Services Fees $2,689 $1,497 TRUSTEES' COMPENSATION - The fund pays compensation to Independent Trustees in the form of a retainer, attendance fees, and additional compensation to Board and Committee chairpersons. The fund does not pay compensation directly to Trustees who are officers of the investment adviser, or to officers of the fund, all of whom receive remuneration for their services to the fund from MFS. Certain officers and Trustees of the fund are officers or directors of MFS, MFD, and MFSC. The fund has an unfunded, defined benefit plan for retired Independent Trustees which resulted in a pension expense of $1,179. This amount is included in Trustees' compensation for the year ended August 31, 2005. OTHER - This fund and certain other MFS funds (the funds) have entered into a services agreement (the Agreement) which provides for payment of fees by the funds to Tarantino LLC in return for the provision of services of an Independent Chief Compliance Officer (ICCO) for the funds. The ICCO is an officer of the funds and the sole member of Tarantino LLC. MFS has agreed to reimburse the fund for a portion of the payments made by the funds to Tarantino LLC in the amount of $5,183, which is shown as a reduction of total expenses in the Statement of Operations. Additionally, MFS has agreed to bear all expenses associated with office space, other administrative support, and supplies provided to the ICCO. The funds can terminate the Agreement with Tarantino LLC at any time under the terms of the Agreement. The fund's investment adviser, MFS, was the subject of an administrative proceeding regarding disclosure of brokerage allocation practices in connection with fund sales. As a result, proceeds in the amount of $171,376 were paid to the fund on February 16, 2005. (4) PORTFOLIO SECURITIES Purchases and sales of investments, other than U.S. government securities, purchased option transactions, and short-term obligations, aggregated $1,229,166,337 and $1,695,272,321, respectively. The cost and unrealized appreciation and depreciation in the value of the investments owned by the fund, as computed on a federal income tax basis, are as follows: Aggregate cost $1,150,132,518 ---------------------------------------------------------- Gross unrealized appreciation $136,404,989 Gross unrealized depreciation (53,971,717) ---------------------------------------------------------- Net unrealized appreciation (depreciation) $82,433,272 (5) SHARES OF BENEFICIAL INTEREST The fund's Declaration of Trust permits the Trustees to issue an unlimited number of full and fractional shares of beneficial interest. Transactions in fund shares were as follows: Year ended 8/31/05 Year ended 8/31/04 SHARES AMOUNT SHARES AMOUNT CLASS A SHARES Shares sold 11,949,697 $183,836,975 27,881,162 $427,444,261 Shares reacquired (37,108,405) (566,755,888) (35,845,570) (543,460,338) - ----------------------------------------------------------------------------------------------------------- Net change (25,158,708) $(382,918,913) (7,964,408) $(116,016,077) CLASS B SHARES Shares sold 1,638,877 $24,312,243 4,190,532 $62,289,343 Shares reacquired (6,760,662) (100,122,589) (5,630,740) (82,666,681) - ----------------------------------------------------------------------------------------------------------- Net change (5,121,785) $(75,810,346) (1,440,208) $(20,377,338) CLASS C SHARES Shares sold 597,878 $8,856,962 1,285,450 $19,079,978 Shares reacquired (2,114,075) (31,372,384) (2,103,564) (31,044,196) - ----------------------------------------------------------------------------------------------------------- Net change (1,516,197) $(22,515,422) (818,114) $(11,964,218) CLASS I SHARES Shares sold 2,114,298 $33,670,053 4,167,456 $65,121,180 Shares reacquired (3,323,601) (52,205,115) (2,840,698) (44,371,479) - ----------------------------------------------------------------------------------------------------------- Net change (1,209,303) $(18,535,062) 1,326,758 $20,749,701 CLASS R SHARES (FORMERLY CLASS R1) Shares sold 823,683 $12,721,175 678,187 $10,521,406 Shares reacquired (353,416) (5,455,149) (265,383) (4,086,141) - ----------------------------------------------------------------------------------------------------------- Net change 470,267 $7,266,026 412,804 $6,435,265 Period ended 8/31/05* SHARES AMOUNT CLASS R1 SHARES Shares sold 14,762 $221,653 Shares reacquired (2,033) (32,078) - ------------------------------------------------------------------------- Net change 12,729 $189,575 CLASS R2 SHARES Shares sold 8,365 $136,805 Shares reacquired -- -- - ------------------------------------------------------------------------- Net change 8,365 $136,805 Year ended 8/31/05 Period ended 8/31/04** SHARES AMOUNT SHARES AMOUNT CLASS R3 SHARES (FORMERLY CLASS R2) Shares sold 91,932 $1,476,280 48,031 $704,104 Shares reacquired (31,541) (507,609) (14,374) (221,632) - ----------------------------------------------------------------------------------------------------------- Net change 60,391 $968,671 33,657 $482,472 Period ended 8/31/05* SHARES AMOUNT CLASS R4 SHARES Shares sold 19,816 $323,940 Shares reacquired -- -- - ------------------------------------------------------------------------- Net change 19,816 $323,940 CLASS R5 SHARES Shares sold 3,325 $50,000 Shares reacquired -- -- - ------------------------------------------------------------------------- Net change 3,325 $50,000 Year ended 8/31/05 Year ended 8/31/04 SHARES AMOUNT SHARES AMOUNT CLASS 529A SHARES Shares sold 90,426 $1,445,550 17,857 $272,955 Shares reacquired (21,518) (328,291) (1,267) (18,993) - ----------------------------------------------------------------------------------------------------------- Net change 68,908 $1,117,259 16,590 $253,962 CLASS 529B SHARES Shares sold 1,657 $24,184 4,746 $70,399 Shares reacquired (961) (14,285) (316) (4,635) - ------------------------------------------------------------------------------------------------------------- Net change 696 $9,899 4,430 $65,764 CLASS 529C SHARES Shares sold 6,597 $99,344 9,841 $145,885 Shares reacquired (4,267) (63,294) (1,827) (27,988) - ------------------------------------------------------------------------------------------------------------- Net change 2,330 $36,050 8,014 $117,897 * For the period from the inception of Class R1, Class R2, Class R4 and Class R5 shares, April 1, 2005 through August 31, 2005. ** For the period from the inception of Class R3 shares, October 31, 2003 through August 31, 2004. The fund is one of several mutual funds in which the MFS fund-of-funds may invest. The MFS fund-of-funds do not invest in the underlying MFS funds for the purpose of exercising management or control. At the end of the period, the MFS Aggressive Growth Allocation Fund was the owner of record of approximately 4% of the value of outstanding voting shares. (6) LINE OF CREDIT The fund and other affiliated funds participate in a $1 billion unsecured line of credit provided by a syndication of banks under a credit agreement. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its borrowings, at a rate equal to the Federal Reserve funds rate plus 0.35%. In addition, a commitment fee, based on the average daily, unused portion of the line of credit, is allocated among the participating funds at the end of each calendar quarter. The commitment fee allocated to the fund for the year ended August 31, 2005 was $6,465, and is included in miscellaneous expense. The fund had no significant borrowings during the year ended August 31, 2005. REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Trustees of MFS Series Trust I and Shareholders of MFS New Discovery Fund: We have audited the accompanying statement of assets and liabilities of MFS New Discovery Fund (the Fund) (one of the portfolios comprising MFS Series Trust I), including the portfolio of investments, as of August 31, 2005, and the related statement of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the periods indicated therein. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. We were not engaged to perform an audit of the Fund's internal control over financial reporting. Our audit included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of August 31, 2005, by correspondence with the custodian and brokers or by other appropriate auditing procedures where replies from brokers were not received. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of MFS New Discovery Fund at August 31, 2005, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and its financial highlights for each of the periods indicated therein, in conformity with U.S. generally accepted accounting principles. /s/ ERNST & YOUNG LLP Boston, Massachusetts October 11, 2005 RESULTS OF SHAREHOLDER MEETING (unaudited) - 8/31/05 At a special meeting of shareholders of MFS Series Trust I, which was held on March 23, 2005, the following action was taken: ITEM 1. To elect a Board of Trustees: NUMBER OF DOLLARS ------------------------------------------- NOMINEE AFFIRMATIVE WITHHOLD AUTHORITY Lawrence H. Cohn, M.D. $8,025,286,508.56 $117,939,292.78 - ------------------------------------------------------------------------------ David H. Gunning 8,030,402,677.64 112,823,123.70 - ------------------------------------------------------------------------------ William R. Gutow 8,027,523,726.27 115,702,075.07 - ------------------------------------------------------------------------------ Michael Hegarty 8,021,162,525.49 122,063,275.85 - ------------------------------------------------------------------------------ J. Atwood Ives 8,024,062,680.07 119,163,121.27 - ------------------------------------------------------------------------------ Amy B. Lane 8,019,792,882.59 123,432,918.75 - ------------------------------------------------------------------------------ Robert J. Manning 8,030,980,361.78 112,245,439.56 - ------------------------------------------------------------------------------ Lawrence T. Perera 8,025,935,401.12 117,290,400.22 - ------------------------------------------------------------------------------ Robert C. Pozen 8,031,655,470.25 111,570,331.09 - ------------------------------------------------------------------------------ J. Dale Sherratt 8,027,226,595.42 115,999,205.92 - ------------------------------------------------------------------------------ Laurie J. Thomsen 8,019,388,506.87 123,837,294.47 - ------------------------------------------------------------------------------ TRUSTEES AND OFFICERS -- IDENTIFICATION AND BACKGROUND The Trustees and officers of the Trust, as of October 1, 2005, are listed below, together with their principal occupations during the past five years. (Their titles may have varied during that period.) The address of each Trustee and officer is 500 Boylston Street, Boston, Massachusetts 02116. PRINCIPAL OCCUPATIONS DURING POSITION(s) HELD TRUSTEE/OFFICER THE PAST FIVE YEARS & NAME, DATE OF BIRTH WITH FUND SINCE(1) OTHER DIRECTORSHIPS(2) - ------------------- ---------------- -------------- ---------------------------- INTERESTED TRUSTEES Robert J. Manning(3) Trustee and February 2004 Massachusetts Financial Services (born 10/20/63) President Company, Chief Executive Officer, President, Chief Investment Officer and Director Robert C. Pozen(3) Trustee February 2004 Massachusetts Financial Services (born 08/08/46) Company, Chairman (since February 2004); Harvard Law School (education), John Olin Visiting Professor (since July 2002); Secretary of Economic Affairs, The Commonwealth of Massachusetts (January 2002 to December 2002); Fidelity Investments, Vice Chairman (June 2000 to December 2001); Fidelity Management & Research Company (investment adviser), President (March 1997 to July 2001); Bell Canada Enterprises (telecommunications), Director; Medtronic, Inc. (medical technology), Director; Telesat (satellite communications), Director INDEPENDENT TRUSTEES J. Atwood Ives Trustee and Chair February 1992 Private investor; Eastern (born 05/01/36) of Trustees Enterprises (diversified services company), Chairman, Trustee and Chief Executive Officer (until November 2000) Lawrence H. Cohn, M.D. Trustee August 1993 Brigham and Women's Hospital, (born 03/11/37) Chief of Cardiac Surgery; Harvard Medical School, Professor of Surgery David H. Gunning Trustee January 2004 Cleveland-Cliffs Inc. (mining (born 05/30/42) products and service provider), Vice Chairman/Director (since April 2001); Encinitos Ventures (private investment company), Principal (1997 to April 2001); Lincoln Electric Holdings, Inc. (welding equipment manufacturer), Director William R. Gutow Trustee December 1993 Private investor and real estate (born 09/27/41) consultant; Capitol Entertainment Management Company (video franchise), Vice Chairman Michael Hegarty Trustee December 2004 Retired; AXA Financial (financial (born 12/21/44) services and insurance), Vice Chairman and Chief Operating Officer (until May 2001); The Equitable Life Assurance Society (insurance), President and Chief Operating Officer (until May 2001) Amy B. Lane Trustee January 2004 Retired; Merrill Lynch & Co., (born 02/08/53) Inc., Managing Director, Investment Banking Group (1997 to February 2001); Borders Group, Inc. (book and music retailer), Director; Federal Realty Investment Trust (real estate investment trust), Trustee Lawrence T. Perera Trustee July 1981 Hemenway & Barnes (attorneys), (born 06/23/35) Partner J. Dale Sherratt Trustee August 1993 Insight Resources, Inc. (born 09/23/38) (acquisition planning specialists), President; Wellfleet Investments (investor in health care companies), Managing General Partner (since 1993); Cambridge Nutraceuticals (professional nutritional products), Chief Executive Officer (until May 2001) Laurie J. Thomsen Trustee March 2005 Private investor; Prism Venture (born 08/05/57) Partners (venture capital), Co- founder and General Partner (until June 2004); St. Paul Travelers Companies (commercial property liability insurance), Director OFFICERS Robert J. Manning(3) President and February 2004 Massachusetts Financial Services (born 10/20/63) Trustee Company, Chief Executive Officer, President, Chief Investment Officer and Director Tracy Atkinson(3) Treasurer September 2005 Massachusetts Financial Services (born 12/30/64) Company, Senior Vice President (since September 2004); PricewaterhouseCoopers LLP, Partner (prior to September 2004) Christopher R. Bohane(3) Assistant July 2005 Massachusetts Financial Services (born 1/18/74) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since April 2003); Kirkpatrick & Lockhart LLP (law firm), Associate (prior to April 2003); Nvest Services Company, Assistant Vice President and Associate Counsel (prior to January 2001) Jeffrey N. Carp(3) Secretary and September 2004 Massachusetts Financial Services (born 12/01/56) Clerk Company, Executive Vice President, General Counsel and Secretary (since April 2004); Hale and Dorr LLP (law firm), Partner (prior to April 2004) Ethan D. Corey(3) Assistant July 2005 Massachusetts Financial Services (born 11/21/63) Secretary and Company, Special Counsel (since Assistant Clerk December 2004); Dechert LLP (law firm), Counsel (prior to December 2004) Stephanie A. DeSisto(3) Assistant May 2003 Massachusetts Financial Services (born 10/01/53) Treasurer Company, Vice President (since April 2003); Brown Brothers Harriman & Co., Senior Vice President (November 2002 to April 2003); ING Groep N.V./Aeltus Investment Management, Senior Vice President (prior to November 2002) David L. DiLorenzo(3) Assistant July 2005 Massachusetts Financial Services (born 8/10/68) Treasurer Company, Vice President (since June 2005); JP Morgan Investor Services, Vice President (January 2001 to June 2005); State Street Bank, Vice President and Corporate Audit Manager (prior to January 2001) Timothy M. Fagan(3) Assistant September 2005 Massachusetts Financial Services (born 7/10/68) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since September 2005); John Hancock Advisers, LLC, Vice President and Chief Compliance Officer (September 2004 to August 2005), Senior Attorney (prior to September 2004); John Hancock Group of Funds, Vice President and Chief Compliance Officer (September 2004 to December 2004) Mark D. Fischer(3) Assistant July 2005 Massachusetts Financial Services (born 10/27/70) Treasurer Company, Vice President (since May 2005); JP Morgan Investment Management Company, Vice President (prior to May 2005) Brian T. Hourihan(3) Assistant September 2004 Massachusetts Financial Services (born 11/11/64) Secretary and Company, Vice President, Senior Assistant Clerk Counsel and Assistant Secretary (since June 2004); Affiliated Managers Group, Inc., Chief Legal Officer/Centralized Compliance Program (January to April 2004); Fidelity Research & Management Company, Assistant General Counsel (prior to January 2004) Ellen Moynihan(3) Assistant April 1997 Massachusetts Financial Services (born 11/13/57) Treasurer Company, Vice President Susan S. Newton(3) Assistant May 2005 Massachusetts Financial Services (born 03/07/50) Secretary and Company, Senior Vice President and Assistant Clerk Associate General Counsel (since April 2005); John Hancock Advisers, LLC, Senior Vice President, Secretary and Chief Legal Officer (prior to April 2005); John Hancock Group of Funds, Senior Vice President, Secretary and Chief Legal Officer (prior to April 2005) Susan A. Pereira(3) Assistant July 2005 Massachusetts Financial Services (born 11/05/70) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since June 2004); Bingham McCutchen LLP (law firm), Associate (January 2001 to June 2004); Preti, Flaherty, Beliveau, Pachios & Haley, LLC, Associate (prior to January 2001) Frank L. Tarantino Independent Chief June 2004 Tarantino LLC (provider of (born 03/07/44) Compliance compliance services), Principal Officer (since June 2004); CRA Business Strategies Group (consulting services), Executive Vice President (April 2003 to June 2004); David L. Babson & Co. (investment adviser), Managing Director, Chief Administrative Officer and Director (February 1997 to March 2003) James O. Yost(3) Assistant September 1990 Massachusetts Financial Services (born 06/12/60) Treasurer Company, Senior Vice President - ------------ (1) Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served continuously since appointment unless indicated otherwise. (2) Directorships or trusteeships of companies required to report to the Securities and Exchange Commission (i.e., "public companies"). (3) "Interested person" of the Trust within the meaning of the Investment Company Act of 1940 (referred to as the 1940 Act), which is the principal federal law governing investment companies like the fund, as a result of position with MFS. The address of MFS is 500 Boylston Street, Boston, Massachusetts 02116. Each Trustee has been elected by shareholders and each Trustee and officer holds office until his or her successor is chosen and qualified or until his or her earlier death, resignation, retirement or removal. Messrs. Ives and Sherratt and Mses. Lane and Thomsen are members of the Trust's Audit Committee. Each of the Trust's Trustees and officers holds comparable positions with certain other funds of which MFS or a subsidiary is the investment adviser or distributor, and, in the case of the officers, with certain affiliates of MFS. As of December 31, 2004, each Trustee served as a board member of 99 funds within the MFS Family of Funds. The Trust held a shareholders' meeting in 2005, and will hold a shareholders' meeting at least once every five years thereafter, to elect Trustees. The Statement of Additional Information contains further information about the Trustees and is available without charge upon request by calling 1-800-225-2606. - ------------------------------------------------------------------------------------------------------- INVESTMENT ADVISER CUSTODIAN Massachusetts Financial Services Company State Street Bank and Trust Company 500 Boylston Street, Boston, MA 225 Franklin Street, Boston, MA 02110 02116-3741 INDEPENDENT REGISTERED PUBLIC DISTRIBUTOR ACCOUNTING FIRM MFS Fund Distributors, Inc. Ernst & Young LLP 500 Boylston Street, Boston, MA 200 Clarendon Street, Boston, MA 02116 02116-3741 PORTFOLIO MANAGER Thomas Wetherald BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT The Investment Company Act of 1940 requires that both the full Board of Trustees and a majority of the non-interested ("independent") Trustees, voting separately, annually approve the continuation of the Fund's investment advisory agreement with MFS. The Trustees consider matters bearing on the Fund and its advisory arrangements at their meetings throughout the year, including a review of performance data at each regular meeting. In addition, the independent Trustees met several times over the course of three months beginning in May and ending in July, 2005 ("contract review meetings") for the specific purpose of considering whether to approve the continuation of the investment advisory agreement for the Fund and the other investment companies that the Board oversees (the "MFS Funds"). The independent Trustees were assisted in their evaluation of the Fund's investment advisory agreement by independent legal counsel, from whom they received separate legal advice and with whom they met separately from MFS during various contract review meetings. The independent Trustees were also assisted in this process by the MFS Funds' Independent Chief Compliance Officer, a full-time senior officer appointed by and reporting to the independent Trustees. In connection with their deliberations regarding the continuation of the investment advisory agreement, the Trustees, including the independent Trustees, considered such information and factors as they believed, in light of the legal advice furnished to them and their own business judgment, to be relevant. The investment advisory agreement for the Fund was considered separately, although the Trustees also took into account the common interests of all MFS Funds in their review. As described below, the Trustees considered the nature, quality, and extent of the various investment advisory, administrative, and shareholder services performed by MFS under the existing investment advisory agreement and other arrangements with the Fund. In connection with their contract review meetings, the Trustees received and relied upon materials which included, among other items: (i) information provided by Lipper Inc. on the investment performance of the Fund for various time periods ended December 31, 2004 and the investment performance of a group of funds with substantially similar investment classifications/objectives (the "Lipper performance universe"), as well as the investment performance of a group of funds identified by objective criteria suggested by MFS ("peer funds"), (ii) information provided by Lipper Inc. on the Fund's advisory fees and other expenses and the advisory fees and other expenses of comparable funds identified by Lipper (the "Lipper expense group"), as well as the advisory fees and other expenses of peer funds identified by objective criteria suggested by MFS, (iii) information provided by MFS on the advisory fees of comparable portfolios of other clients of MFS, including institutional separate account and other clients, (iv) information as to whether and to what extent applicable expense waivers, reimbursements or fee "breakpoints" are observed for the Fund, (v) information regarding MFS' financial results and financial condition, including MFS' and certain of its affiliates' estimated profitability from services performed for the Fund and the MFS Funds as a whole, (vi) MFS' views regarding the outlook for the mutual fund industry and the strategic business plans of MFS, (vii) descriptions of various functions performed by MFS for the Funds, such as compliance monitoring and portfolio trading practices, and (viii) information regarding the overall organization of MFS, including information about MFS' senior management and other personnel providing investment advisory, administrative and other services to the Fund and the other MFS Funds. The comparative performance, fee and expense information prepared and provided by Lipper Inc. was not independently verified and the independent Trustees did not independently verify any information provided to them by MFS. The Trustees' conclusion as to the continuation of the investment advisory agreement was based on a comprehensive consideration of all information provided to the Trustees and not the result of any single factor. Some of the factors that figured particularly in the Trustees' deliberations are described below, although individual Trustees may have evaluated the information presented differently from one another, giving different weights to various factors. It is also important to recognize that the fee arrangements for the Fund and other MFS Funds are the result of years of review and discussion between the independent Trustees and MFS, that certain aspects of such arrangements may receive greater scrutiny in some years than others, and that the Trustees' conclusions may be based, in part, on their consideration of these same arrangements during the course of the year and in prior years. Based on information provided by Lipper Inc. and MFS, the Trustees reviewed the Fund's total return investment performance as well as the performance of peer groups of funds over various time periods. The Trustees placed particular emphasis on the total return performance of the Fund's Class A shares in comparison to the performance of funds in its Lipper performance universe over the three-year period ended December 31, 2004, which the Trustees believed was a long enough period to reflect differing market conditions. The Fund's performance was in the 86th percentile relative to the other funds in the universe for this three-year period (the 1st percentile being the best performers and the 100th percentile being the worst performers). The total return performance of the Fund's Class A shares was in the 75th percentile for the one-year period and the 51st percentile for the five-year period ended December 31, 2004 relative to the Lipper performance universe. Because of the passage of time, these performance results are likely to differ from the performance results for more recent periods, including those shown elsewhere in this report. In the course of their deliberations, the Trustees took into account information provided by MFS in connection with the contract review meetings, as well as during investment review meetings conducted with portfolio management personnel during the course of the year, as to MFS' efforts to improve the Fund's performance, including the assumption of primary portfolio management responsibilities by one of the Fund's portfolio managers in February, 2005. After reviewing these and related factors, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that they were satisfied with MFS' responses and efforts relating to investment performance. In assessing the reasonableness of the Fund's advisory fee, the Trustees considered, among other information, the Fund's advisory fee and the total expense ratio of the Fund's Class A shares as a percentage of average net assets and the advisory fee and total expense ratios of peer groups of funds based on information provided by Lipper Inc. and MFS. The Trustees considered whether the Fund was subject to any fee waivers or reductions or expense limitations. The Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate and total expense ratio were each higher than the Lipper expense group median. The Trustees also considered the advisory fees charged by MFS to institutional accounts. In comparing these fees, the Trustees considered information provided by MFS as to the generally broader scope of services provided by MFS to the Fund in comparison to institutional accounts, the higher demands placed on MFS' investment personnel and trading infrastructure as a result of the daily cash in-flows and out-flows of the Fund, and the impact on MFS and expenses associated with the more extensive regulatory regime to which the Fund is subject in comparison to institutional accounts. The Trustees also considered whether the Fund is likely to benefit from any economies of scale in the management of the Fund in the event of growth in assets of the Fund. They noted that the Fund's advisory fee rate schedule is currently subject to a breakpoint that reduces the Fund's advisory fee rate on net assets over $1.5 billion. Taking into account fee waivers or reductions or expense limitations, if any, the Trustees concluded that the existing breakpoint was sufficient to allow the Fund to benefit from economies of scale as its assets grow. The Trustees also considered information prepared by MFS relating to MFS' costs and profits with respect to the Fund, the MFS Funds considered as a group, and other investment companies and accounts advised by MFS, as well as MFS' methodologies used to determine and allocate its costs to the MFS Funds, the Fund and other accounts and products for purposes of estimating profitability. After reviewing these and other factors described herein, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that the advisory fees charged to the Fund represent reasonable compensation in light of the nature and quality of the services being provided by MFS to the Fund. In addition, the Trustees considered MFS' resources and related efforts to continue to retain, attract and motivate capable personnel to serve the Fund. The Trustees also considered current and developing conditions in the financial services industry, including the entry into the industry of large and well-capitalized companies which are spending, and appear to be prepared to continue to spend, substantial sums to engage personnel and to provide services to competing investment companies. In this regard, the Trustees also considered the financial resources of MFS and its ultimate parent, Sun Life Financial Inc. The Trustees also considered the advantages and possible disadvantages to the Fund of having an adviser which also serves other investment companies as well as other accounts. The Trustees also considered the nature, quality, cost, and extent of administrative, transfer agency, and distribution services provided to the Fund by MFS and its affiliates under agreements and plans other than the investment advisory agreement, including any 12b-1 fees the Fund pays to MFS Fund Distributors, Inc., an affiliate of MFS. The Trustees also considered the nature, extent and quality of certain other services MFS performs or arranges for on the Fund's behalf, including securities lending programs, directed expense payment programs, class action recovery programs, and MFS' interaction with third-party service providers, principally custodians and sub-custodians. The Trustees concluded that the various non-advisory services provided by MFS and its affiliates on behalf of the Funds were satisfactory. The Trustees also considered benefits to MFS from the use of the Fund's portfolio brokerage commissions to pay for research and other similar services (including MFS' general policy to pay directly for third-party research), and various other factors. Additionally, the Trustees considered so-called "fall- out benefits" to MFS such as reputational value derived from serving as investment manager to the Fund. Based on their evaluation of factors that they deemed to be material, including those factors described above, the Board of Trustees, including a majority of the independent Trustees, concluded that the Fund's investment advisory agreement with MFS should be continued for an additional one-year period, commencing August 1, 2005. A discussion regarding the Board's most recent review and renewal of the Fund's investment advisory agreement will be available on or before December 1, 2005 by clicking on the fund's name under "Select a fund" on the MFS website (mfs.com). PROXY VOTING POLICIES AND INFORMATION A general description of the MFS funds' proxy voting policies and procedures is available without charge, upon request, by calling 1-800-225-2606, by visiting the Proxy Voting section of mfs.com or by visiting the SEC's Web site at http://www.sec.gov. Information regarding how the fund voted proxies relating to portfolio securities during the most recent twelve-month period ended June 30 is available without charge by visiting the Proxy Voting section of mfs.com or by visiting the SEC's Web site at http://www.sec.gov. QUARTERLY PORTFOLIO DISCLOSURE The fund will file a complete schedule of portfolio holdings with the Securities and Exchange Commission (the Commission) for the first and third quarters of each fiscal year on Form N-Q. The fund's Form N-Q may be reviewed and copied at the: Public Reference Room Securities and Exchange Commission Washington, D.C. 20549-0102 Information on the operation of the Public Reference Room may be obtained by calling the Commission at 1-800-SEC-0330. The fund's Form N-Q is available on the EDGAR database on the Commission's Internet website at http://www.sec.gov, and copies of this information may be obtained, upon payment of a duplicating fee, by electronic request at the following e-mail address: publicinfo@sec.gov or by writing the Public Reference Section at the above address. A shareholder can also obtain the quarterly portfolio holdings report at mfs.com. FEDERAL TAX INFORMATION (unaudited) In January 2006, shareholders will be mailed a Form 1099-DIV reporting the federal tax status of all distributions paid during the calendar year 2005. CONTACT INFORMATION INVESTOR SERVICE Write to us at: MFS Service Center, Inc. P.O. Box 55824 Boston, MA 02205-5824 Type of Information Phone number Hours, Eastern Time - -------------------------------------------------------------------------------- General information 1-800-225-2606 8 a.m. to 8 p.m., any business day - -------------------------------------------------------------------------------- Speech- or hearing-impaired 1-800-637-6576 9 a.m. to 5 p.m., any business day - -------------------------------------------------------------------------------- Share prices, account 1-800-MFS-TALK balances exchanges (1-800-637-8255) 24 hours a day, 365 days a or stock and bond outlooks touch-tone required year - -------------------------------------------------------------------------------- M F S(SM) INVESTMENT MANAGEMENT(R) (C) 2005 MFS Investment Management(R) MFS(R) investment products are offered through MFS Fund Distributors, Inc., 500 Boylston Street, Boston, MA 02116. NDF-ANN-10/05 86M MFS(R) RESEARCH INTERNATIONAL FUND 8/31/05 ANNUAL REPORT - ------------------------------------------------------------------------------- LETTER FROM THE CEO 1 - --------------------------------------------------- PORTFOLIO COMPOSITION 2 - --------------------------------------------------- MANAGEMENT REVIEW 3 - --------------------------------------------------- PERFORMANCE SUMMARY 5 - --------------------------------------------------- EXPENSE TABLE 8 - --------------------------------------------------- PORTFOLIO OF INVESTMENTS 10 - --------------------------------------------------- FINANCIAL STATEMENTS 15 - --------------------------------------------------- NOTES TO FINANCIAL STATEMENTS 29 - --------------------------------------------------- REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 40 - --------------------------------------------------- RESULTS OF SHAREHOLDER MEETING 41 - --------------------------------------------------- TRUSTEES AND OFFICERS 42 - --------------------------------------------------- BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT 47 - --------------------------------------------------- PROXY VOTING POLICIES AND INFORMATION 51 - --------------------------------------------------- QUARTERLY PORTFOLIO DISCLOSURE 51 - --------------------------------------------------- FEDERAL TAX INFORMATION 51 - --------------------------------------------------- CONTACT INFORMATION BACK COVER - --------------------------------------------------- THIS REPORT HAS BEEN PREPARED FOR THE GENERAL INFORMATION TO SHAREHOLDERS. IT IS AUTHORIZED FOR DISTRIBUTION TO PROSPECTIVE INVESTORS ONLY WHEN PRECEDED OR ACCOMPANIED BY A CURRENT PROSPECTUS. M F S(SM) INVESTMENT MANAGEMENT(R) LETTER FROM THE CEO [Photo of Robert J. Manning] Dear Shareholders, Most investors are familiar with the basic principles of investing - focus on the long term and keep your assets diversified across different investment categories. Still, it is surprising how often we forget these basic lessons. Certainly, the dot-com euphoria that overtook Wall Street in the late 1990s had many people hoping they could become millionaires overnight. But the market decline that started in the spring of 2000 taught everyone how misguided those hopes had been. Now, less than five years after the market taught a harsh lesson in the follies of speculative investing, we are seeing a number of trends that suggest many investors, including professionals, are hoping for overnight miracles again. We see a steady stream of market "gurus" on television news shows, promising to teach amateur investors the strategies that will allow them to get rich quick. Hedge funds - which by their nature move in and out of investments rapidly - have soared in popularity over the past five years. We are reminded every day that we live in a "what have you done for me lately?" world, but this mindset should not influence how we invest and manage our money. In fact, investors often fall short of their goals because they trade in and out of investments too frequently and at inopportune times. Throughout our entire 80-year history, MFS' money management process has focused on long-term investment opportunities. We firmly believe that one of the best ways to realize long-term financial goals - be it a college education, a comfortable retirement, or a secure family legacy - is to follow a three-pronged approach that focuses on longer time horizons. Allocate holdings across the major asset classes - including stocks, bonds, and cash. Diversify within each class to take advantage of different market segments and investing styles. And rebalance assets regularly to maintain a desired asset allocation.* This long-term approach requires diligence and patience, two traits that in our experience are essential to capitalizing on the many opportunities the financial markets can offer. Respectfully, /s/ Robert J. Manning Robert J. Manning Chief Executive Officer and Chief Investment Officer MFS Investment Management(R) October 17, 2005 * Asset allocation, diversification, and rebalancing does not guarantee a profit or protect against a loss. The opinions expressed in this letter are those of MFS, and no forecasts can be guaranteed. PORTFOLIO COMPOSITION PORTFOLIO STRUCTURE Stocks 98.4% Cash & Other Net Assets 1.6% TOP TEN HOLDINGS TOTAL S.A. 3.1% ------------------------------------------------ Samsung Electronics Co. 3.0% ------------------------------------------------ Nestle S.A. 2.4% ------------------------------------------------ Roche Holdings 2.3% ------------------------------------------------ Vodafone Group 2.3% ------------------------------------------------ Suez S.A. 2.2% ------------------------------------------------ Mitsui Mining & Smelting Co. 2.0% ------------------------------------------------ Sanofi-Aventis 1.9% ------------------------------------------------ Telefonica S.A. 1.8% ------------------------------------------------ Royal Bank of Scotland Group 1.8% ------------------------------------------------ EQUITY SECTORS Financial Services 27.1% ------------------------------------------------ Telecom/Utilities 11.9% ------------------------------------------------ Autos/Capital Goods 9.7% ------------------------------------------------ Energy 9.4% ------------------------------------------------ Health Care 8.3% ------------------------------------------------ Basic Materials 7.9% ------------------------------------------------ Technology/Business Services 7.3% ------------------------------------------------ Consumer Staples 6.4% ------------------------------------------------ Leisure/Transportation/Media 6.1% ------------------------------------------------ Retailing 4.3% ------------------------------------------------ COUNTRY WEIGHTINGS Great Britain 19.5% ------------------------------------------------ Japan 16.4% ------------------------------------------------ France 16.2% ------------------------------------------------ Switzerland 7.8% ------------------------------------------------ South Korea 6.6% ------------------------------------------------ Spain 3.3% ------------------------------------------------ Mexico 3.1% ------------------------------------------------ Brazi l3.1% ------------------------------------------------ Germany 3.1% ------------------------------------------------ Other 20.9% ------------------------------------------------ Percentages are based on net assets as of 8/31/05. The portfolio is actively managed, and current holdings may be different. MANAGEMENT REVIEW SUMMARY OF RESULTS For the twelve months ended August 31, 2005, Class A shares of the MFS Research International Fund provided a total return of 22.67%, at net asset value. In comparison, the fund's benchmark, the MSCI EAFE Index, returned 24.09%. DETRACTORS FROM PERFORMANCE Stock selection in the technology/business services and Asian financials sectors held back relative performance. In the technology/business services sector, Japanese electronic devices manufacturer Seiko Epson, technology holding company Softbank*, and consumer electronics manufacturer Funai Electric*, which is not in the benchmark, were among the fund's top detractors for the period. In the Asian financials sector, Japanese consumer finance company Takefuji and real estate financier Leopalace21 detracted from relative results. Stock selection in the retailing sector held back relative performance during the period. Japanese home improvement retailer Sekisui Chemical* and U.K-based Kingfisher PLC* were among the top detractors. Stocks in other sectors that hampered relative returns included Japanese game console maker Nintendo and U.K-based pharmaceutical firm AstraZeneca. The fund's cash position held back relative performance. As with nearly all mutual funds, this fund holds some cash to buy new holdings and to provide liquidity. In a period when equity markets rose measurably, holding any cash hurt performance relative to our benchmark, the MSCI EAFE Index, which does not have a cash position. CONTRIBUTORS TO PERFORMANCE The energy, European financials, and telecom/utilities sectors were the fund's most significant contributors to relative performance over the period. Stock selection was the main driver of positive results in all three sectors. In the energy sector, steel pipe maker and distributor Tenaris S.A., and oil and gas companies Statoil of Norway, MOL Magyar* of Hungary, CNOOC of China, and Lukoil of Russia were among the top contributors. Of the five companies, Statoil is the only company held in the MSCI EAFE Index. In the European financials sector, Hungarian finance firm OTP Bank, which is not a benchmark constituent, was a top performer. In the telecom/utilities sector, Latin American wireless operations company America Movil S.A.*, French utility operations firm Suez, and Indian telecom service company Bharti Tele-Ventures* boosted performance. Of the three companies in the sector, Suez is the only company held in the index. Brazilian iron ore producer and distributor Companhia Vale do Rio Doce, which is not an index constituent, was also among the top contributors for the period. During the reporting period, shifts in currency valuations were a significant contributor to performance relative to the benchmark. The base currency of the fund is the U.S. dollar and the performance of the fund and its benchmark are presented in terms of this currency. Nevertheless, specific holdings of the fund and benchmark may be denominated in different currencies and, therefore, present the possibility of currency depreciation or appreciation. Because the exposures of the fund and the benchmark to foreign currency movements may differ from time to time, these movements may have a material impact on relative performance. * Security was not held in the portfolio at period-end. Respectfully, Thomas Melendez Jose Luis Garcia Portfolio Manager Portfolio Manager The fund is managed by a team of Global MFS Equity Research analysts, under the general supervision of Mr. Melendez and Mr. Garcia. The views expressed in this report are those of the portfolio managers only through the end of the period of the report as stated on the cover and do not necessarily reflect the views of MFS or any other person in the MFS organization. These views are subject to change at any time based on market and other conditions, and MFS disclaims any responsibility to update such views. These views may not be relied upon as investment advice or an indication of trading intent on behalf of any MFS Fund. References to specific securities are not recommendations of such securities, and may not be representative of any MFS Fund's current or future investments. PERFORMANCE SUMMARY THROUGH 8/31/05 The following chart illustrates the historical performance of the fund's original share class in comparison to its benchmark. Performance results include the deduction of the maximum applicable sales charge and reflect the percentage change in net asset value, including reinvestment of dividends and capital gains distributions. Benchmark comparisons are unmanaged and do not reflect any fees or expenses. The performance of other share classes will be greater than or less than the line shown. (See Notes to Performance Summary.) VISIT MFS.COM FOR THE MOST RECENT MONTH-END PERFORMANCE RESULTS. (FOR THE MOST RECENT MONTH-END PERFORMANCE FOR CLASS I SHARES CALL 1-888-808-6374.) MARKET VOLATILITY CAN SIGNIFICANTLY AFFECT SHORT-TERM PERFORMANCE, AND CURRENT PERFORMANCE MAY BE LOWER OR HIGHER THAN THE PERFORMANCE DATA QUOTED. THE PERFORMANCE DATA QUOTED REPRESENTS PAST PERFORMANCE, WHICH IS NO GUARANTEE OF FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE WILL FLUCTUATE, AND SHARES, WHEN REDEEMED, MAY BE WORTH MORE OR LESS THAN THEIR ORIGINAL COST. HIGH SHORT-TERM RETURNS FOR ANY PERIOD MAY BE AND LIKELY WERE ATTRIBUTABLE TO FAVORABLE MARKET CONDITIONS DURING THAT PERIOD, WHICH MAY NOT BE REPEATABLE. THE PERFORMANCE SHOWN DOES NOT REFLECT THE DEDUCTION OF TAXES, IF ANY, THAT A SHAREHOLDER WOULD PAY ON FUND DISTRIBUTIONS OR THE REDEMPTION OF FUND SHARES. GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT (For the period from the commencement of the fund's investment operations, January 2, 1997, through August 31, 2005. Index information is from January 1, 1997.) MFS Research International Fund -- Class A MSCI EAFE index 1/97 $ 9,425 $10,000 8/97 10,330 10,476 8/98 10,735 10,490 8/99 13,261 13,220 8/00 17,638 14,517 8/01 13,799 11,021 8/02 12,143 9,403 8/03 12,988 10,304 8/04 16,060 12,683 8/05 19,700 15,738 TOTAL RATES OF RETURN THROUGH 8/31/05 AVERAGE ANNUAL WITHOUT SALES CHARGE Share class Class inception date 1-yr 5-yr Life* - ----------------------------------------------------------------------------- A 1/02/97 22.67% 2.24% 8.89% - ----------------------------------------------------------------------------- B 1/02/98 21.77% 1.58% 8.30% - ----------------------------------------------------------------------------- C 1/02/98 21.84% 1.58% 8.29% - ----------------------------------------------------------------------------- I 1/02/97 23.09% 2.60% 9.25% - ----------------------------------------------------------------------------- R** 12/31/02 22.40% 2.15% 8.83% - ----------------------------------------------------------------------------- R1 4/01/05 22.33% 2.18% 8.85% - ----------------------------------------------------------------------------- R2 4/01/05 22.48% 2.21% 8.87% - ----------------------------------------------------------------------------- R3** 10/31/03 22.13% 2.08% 8.79% - ----------------------------------------------------------------------------- R4 4/01/05 22.67% 2.24% 8.89% - ----------------------------------------------------------------------------- R5 4/01/05 22.81% 2.26% 8.90% - ----------------------------------------------------------------------------- 529A 7/31/02 22.35% 2.09% 8.79% - ----------------------------------------------------------------------------- 529B 7/31/02 21.54% 1.67% 8.54% - ----------------------------------------------------------------------------- 529C 7/31/02 21.53% 1.68% 8.54% - ----------------------------------------------------------------------------- AVERAGE ANNUAL Comparative benchmarks - ----------------------------------------------------------------------------- Average international multi-cap core fund+ 24.36% 1.02% 5.97% - ----------------------------------------------------------------------------- MSCI EAFE Index# 24.09% 1.63% 5.37% - ----------------------------------------------------------------------------- AVERAGE ANNUAL WITH SALES CHARGE Share class - ----------------------------------------------------------------------------- A 15.61% 1.03% 8.14% - ----------------------------------------------------------------------------- B 17.77% 1.21% 8.30% - ----------------------------------------------------------------------------- C 20.84% 1.58% 8.29% - ----------------------------------------------------------------------------- 529A 15.31% 0.88% 8.05% - ----------------------------------------------------------------------------- 529B 17.54% 1.30% 8.54% - ----------------------------------------------------------------------------- 529C 20.53% 1.68% 8.54% - ----------------------------------------------------------------------------- Class I, R, R1, R2, R3, R4, and R5 shares do not have a sales charge. Please see Notes to Performance Summary for more details. * For the period from the commencement of the fund's investment operations, January 2, 1997, through August 31, 2005. Index information is from January 1, 1997. ** Effective April 1, 2005, Class R1 shares have been renamed "Class R shares" and Class R2 shares have been renamed "Class R3 shares." + Source: Lipper Inc., an independent firm that reports mutual fund performance. # Source: Standard & Poor's Micropal, Inc. INDEX DEFINITION MSCI EAFE Index - is a market capitalization index that is designed to measure developed market equity performance, excluding the U.S. & Canada. It is not possible to invest directly in an index. NOTES TO PERFORMANCE SUMMARY Class A and 529A results including sales charge reflect the deduction of the maximum 5.75% sales charge. Class B and 529B results including sales charge reflect the deduction of the applicable contingent deferred sales charge (CDSC), which declines over six years from 4% to 0%. Class C and 529C results including sales charge (assuming redemption within one year from the end of the prior month of purchase) reflect the deduction of the 1% CDSC. Class R shares have no initial sales charge or CDSC and are available only to existing Class R shareholders. Class I, R1, R2, R3, R4, and R5 shares have no initial sales charge or CDSC. Class I shares are only available to certain eligible investors, and Class R1, R2, R3, R4, and R5 shares are only available to certain retirement plans. Class 529 shares are only available in conjunction with qualified tuition programs, such as the MFS 529 Savings Plan. There also is an additional annual fee, which is detailed in the program description, on qualified tuition programs. If this fee was reflected, the performance for Class 529 shares would have been lower. This annual fee is waived for Oregon residents and for those accounts with assets of $25,000 or more. Performance for share classes offered after Class A shares includes the performance of the fund's Class A shares for periods prior to their offering. This blended class performance has been adjusted to take into account differences in sales loads, if any, applicable to these share classes, but has not been adjusted to take into account differences in class specific operating expenses (such as Rule 12b-1 fees). Compared to performance these share classes would have experienced had they been offered for the entire period, the use of blended performance generally results in higher performance for share classes with higher operating expenses than the share class to which it is blended, and lower performance for share classes with lower operating expenses than the share class to which it is blended. Performance results reflect any applicable expense subsidies and waivers in effect during the periods shown. Without such subsidies and waivers the fund's performance results would be less favorable. Please see the prospectus and financial statements for complete details. From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. EXPENSE TABLE FUND EXPENSES BORNE BY THE SHAREHOLDERS DURING THE PERIOD, MARCH 1, 2005 THROUGH AUGUST 31, 2005. As a shareholder of the fund, you incur two types of costs: (1) transaction costs, including sales charges (loads) on certain purchase or redemption payments and redemption fees on certain exchanges and redemptions, and (2) ongoing costs, including management fees; distribution and service (12b-1) fees; and other fund expenses. This example is intended to help you understand your ongoing costs (in dollars) of investing in the fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 invested at the beginning of the period and held for the entire period March 1, 2005 through August 31, 2005. ACTUAL EXPENSES The first line for each share class in the table below provides information about actual account values and actual expenses. You may use the information in this line, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading entitled "Expenses Paid During Period" to estimate the expenses you paid on your account during this period. HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES The second line for each share class in the table below provides information about hypothetical account values and hypothetical expenses based on the fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as sales charges (loads) or redemption fees. Therefore, the second line for each share class in the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher. - ------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period** Expense Account Value Account Value 3/01/05- Share Class Ratio 3/01/05 8/31/05 8/31/05 - ----------------------------------------------------------------------------- Actual 1.54% $1,000.00 $1,025.90 $ 7.86 A ------------------------------------------------------------------ Hypothetical* 1.54% $1,000.00 $1,017.44 $ 7.83 - ----------------------------------------------------------------------------- Actual 2.19% $1,000.00 $1,022.30 $11.16 B ------------------------------------------------------------------- Hypothetical* 2.19% $1,000.00 $1,014.17 $11.12 - ----------------------------------------------------------------------------- Actual 2.19% $1,000.00 $1,022.40 $11.16 C ------------------------------------------------------------------ Hypothetical* 2.19% $1,000.00 $1,014.17 $11.12 - ----------------------------------------------------------------------------- Actual 1.19% $1,000.00 $1,027.80 $ 6.08 I ------------------------------------------------------------------ Hypothetical* 1.19% $1,000.00 $1,019.21 $ 6.06 - ----------------------------------------------------------------------------- R Actual 1.69% $1,000.00 $1,024.80 $ 8.63 (formerly ------------------------------------------------------------------ R1) Hypothetical* 1.69% $1,000.00 $1,016.69 $ 8.59 - ----------------------------------------------------------------------------- Actual 2.40% $1,000.00 $1,023.10 $12.24 R1 ------------------------------------------------------------------ Hypothetical* 2.40% $1,000.00 $1,013.11 $12.18 - ----------------------------------------------------------------------------- Actual 2.08% $1,000.00 $1,024.40 $10.61 R2 ------------------------------------------------------------------ Hypothetical* 2.08% $1,000.00 $1,014.72 $10.56 - ----------------------------------------------------------------------------- R3 Actual 1.95% $1,000.00 $1,023.70 $ 9.95 (formerly ------------------------------------------------------------------ R2) Hypothetical* 1.95% $1,000.00 $1,015.38 $ 9.91 - ----------------------------------------------------------------------------- Actual 1.59% $1,000.00 $1,025.90 $ 8.12 R4 ------------------------------------------------------------------ Hypothetical* 1.59% $1,000.00 $1,017.19 $ 8.08 - ----------------------------------------------------------------------------- Actual 1.29% $1,000.00 $1,027.10 $ 6.59 R5 ------------------------------------------------------------------ Hypothetical* 1.29% $1,000.00 $1,018.70 $ 6.56 - ----------------------------------------------------------------------------- Actual 1.79% $1,000.00 $1,024.80 $ 9.14 529A ------------------------------------------------------------------ Hypothetical* 1.79% $1,000.00 $1,016.18 $ 9.10 - ----------------------------------------------------------------------------- Actual 2.44% $1,000.00 $1,021.20 $12.43 529B ------------------------------------------------------------------ Hypothetical* 2.44% $1,000.00 $1,012.91 $12.38 - ----------------------------------------------------------------------------- Actual 2.44% $1,000.00 $1,021.20 $12.43 529C ------------------------------------------------------------------ Hypothetical* 2.44% $1,000.00 $1,012.91 $12.38 - ----------------------------------------------------------------------------- * 5% class return per year before expenses. ** Expenses paid is equal to each class" annualized expense ratio, as shown above, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year. Expenses paid do not include any applicable sales charges (loads) or redemption fees. If these transaction costs had been included, your costs would have been higher. PORTFOLIO OF INVESTMENTS - 8/31/05 The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Stocks - 98.4% - --------------------------------------------------------------------------------------------------- ISSUER SHARES $ VALUE - --------------------------------------------------------------------------------------------------- Airlines - 1.2% - --------------------------------------------------------------------------------------------------- easyJet Airline Co. Ltd.* 2,935,720 $ 15,508,916 Grupo Aeroportuario del Sureste S.A. de C.V., ADR^ 123,420 4,578,882 Thai Airways International Public Co. Ltd. 4,848,000 4,363,980 -------------- $ 24,451,778 - --------------------------------------------------------------------------------------------------- Alcoholic Beverages - 1.2% - --------------------------------------------------------------------------------------------------- Diageo PLC 1,779,580 $ 25,530,429 - --------------------------------------------------------------------------------------------------- Apparel Manufacturers - 1.1% - --------------------------------------------------------------------------------------------------- Burberry Group PLC 1,587,250 $ 12,170,692 LVMH Moet Hennessy Louis Vuitton S.A 130,300 10,578,553 -------------- $ 22,749,245 - --------------------------------------------------------------------------------------------------- Automotive - 2.7% - --------------------------------------------------------------------------------------------------- Continental AG 140,059 $ 11,117,349 PSA Peugeot Citroen S.A.^ 228,590 14,267,757 Toyota Motor Corp. 776,600 31,801,849 -------------- $ 57,186,955 - --------------------------------------------------------------------------------------------------- Banks & Credit Companies - 22.8% - --------------------------------------------------------------------------------------------------- Aiful Corp. 320,700 $ 24,708,028 Akbank T.A.S 2,174,060 12,845,617 Anglo Irish Bank Corp. PLC 885,300 11,938,930 Banco Bilbao Vizcaya Argentaria S.A 1,883,710 31,348,322 BNP Paribas^ 458,540 33,528,137 Credit Agricole S.A.^ 857,261 22,934,914 DEPFA Bank PLC 486,930 8,223,273 Erste Bank der oesterreichischen Sparkassen AG^ 400,220 22,176,147 Grupo Financiero Inbursa S.A. de C.V 6,683,370 13,815,030 Hana Bank 631,010 19,048,501 HSBC Holdings PLC 1,852,336 29,888,088 Kookmin Bank 340,580 17,103,196 Mitsubishi Tokyo Financial Group, Inc.^ 2,493 25,666,104 ORIX Corp. 95,700 15,799,386 OTP Bank Ltd., GDR 290,790 22,885,173 Raiffeisen International Bank Holding AG* 220 12,827 Royal Bank of Scotland Group PLC 1,302,471 38,065,752 Shinsei Bank Ltd. 3,458,000 21,427,114 Takefuji Corp. 457,840 32,124,209 UBS AG 460,335 37,771,618 Unibanco - Uniao de Bancos Brasileiros S.A., GDR^ 421,720 18,859,318 UniCredito Italiano S.p.A.^ 3,780,210 21,602,356 -------------- $ 481,772,040 - --------------------------------------------------------------------------------------------------- Broadcast & Cable TV - 1.3% - --------------------------------------------------------------------------------------------------- Grupo Televisa S.A., ADR 434,330 $ 27,275,924 - --------------------------------------------------------------------------------------------------- Chemicals - 1.2% - --------------------------------------------------------------------------------------------------- Hanwha Chemical Corp. 757,710 $ 8,928,264 Syngenta AG 160,634 17,137,774 -------------- $ 26,066,038 - --------------------------------------------------------------------------------------------------- Computer Software - 0.5% - --------------------------------------------------------------------------------------------------- Business Objects S.A.^* 322,490 $ 10,763,132 - --------------------------------------------------------------------------------------------------- Computer Software - Systems - 0.8% - --------------------------------------------------------------------------------------------------- LG Philips LCD Co. Ltd.* 350,950 $ 15,933,145 - --------------------------------------------------------------------------------------------------- Construction - 1.0% - --------------------------------------------------------------------------------------------------- Consorcio ARA S.A. de C.V 2,069,720 $ 6,941,369 Italcementi S.p.A 481,000 5,576,985 Italcementi S.p.A. - Ordinary^ 238,090 3,869,465 Urbi Desarrollos Urbanos S.A. de C.V.* 907,690 5,734,199 -------------- $ 22,122,018 - --------------------------------------------------------------------------------------------------- Consumer Goods & Services - 1.3% - --------------------------------------------------------------------------------------------------- Natura Cosmeticos S.A 127,380 $ 4,323,462 Reckitt Benckiser PLC 741,460 23,047,113 -------------- $ 27,370,575 - --------------------------------------------------------------------------------------------------- Electrical Equipment - 1.8% - --------------------------------------------------------------------------------------------------- Schneider Electric S.A.^ 480,113 $ 37,868,401 - --------------------------------------------------------------------------------------------------- Electronics - 4.5% - --------------------------------------------------------------------------------------------------- Ricoh Co. Ltd. 558,000 $ 8,695,089 Royal Philips Electronics N.V 862,380 22,685,622 Samsung Electronics Co. Ltd. 119,050 62,788,436 Seiko Epson Corp. 7,800 243,348 -------------- $ 94,412,495 - --------------------------------------------------------------------------------------------------- Energy - Independent - 1.3% - --------------------------------------------------------------------------------------------------- Canadian Natural Resources Ltd. 107,730 $ 5,302,612 CNOOC Ltd. 30,380,500 21,854,539 -------------- $ 27,157,151 - --------------------------------------------------------------------------------------------------- Energy - Integrated - 7.6% - --------------------------------------------------------------------------------------------------- BP PLC 2,943,160 $ 33,536,233 LUKOIL, ADR 413,470 20,135,989 Petroleo Brasileiro S.A., ADR 142,760 8,931,066 Statoil A.S.A.^ 1,266,640 31,112,209 TOTAL S.A.^ 249,730 65,742,175 -------------- $ 159,457,672 - --------------------------------------------------------------------------------------------------- Food & Drug Stores - 1.9% - --------------------------------------------------------------------------------------------------- Carrefour S.A.^ 341,900 $ 15,916,673 Tesco PLC 3,950,710 23,312,584 -------------- $ 39,229,257 - --------------------------------------------------------------------------------------------------- Food & Non-Alcoholic Beverages - 3.1% - --------------------------------------------------------------------------------------------------- China Mengniu Dairy Co. Ltd. 21,401,000 $ 16,831,126 Nestle S.A.^ 176,906 49,712,015 -------------- $ 66,543,141 - --------------------------------------------------------------------------------------------------- Gaming & Lodging - 0.8% - --------------------------------------------------------------------------------------------------- Hilton Group PLC 3,110,830 $ 17,728,579 - --------------------------------------------------------------------------------------------------- Insurance - 2.8% - --------------------------------------------------------------------------------------------------- Aviva PLC 2,697,090 $ 29,905,971 AXA^ 1,115,450 29,813,260 -------------- $ 59,719,231 - --------------------------------------------------------------------------------------------------- Leisure & Toys - 0.5% - --------------------------------------------------------------------------------------------------- Nintendo Co. Ltd. 110,300 $ 11,621,827 - --------------------------------------------------------------------------------------------------- Machinery & Tools - 5.2% - --------------------------------------------------------------------------------------------------- Fanuc Ltd. 268,600 $ 20,389,040 Hyundai Mobis 221,780 15,902,201 Mitsui Mining & Smelting Co. Ltd. 8,326,000 41,495,764 Sandvik AB^ 706,470 31,390,934 -------------- $ 109,177,939 - --------------------------------------------------------------------------------------------------- Medical Equipment - 0.6% - --------------------------------------------------------------------------------------------------- Synthes, Inc. 99,960 $ 12,023,707 - --------------------------------------------------------------------------------------------------- Metals & Mining - 3.8% - --------------------------------------------------------------------------------------------------- Aber Diamond Corp. 613,500 $ 20,792,583 Anglo American PLC 577,150 14,627,461 BHP Billiton PLC 802,090 11,961,046 Companhia Siderurgica Nacional S.A., ADR^ 373,980 7,240,253 Companhia Vale do Rio Doce, ADR 752,940 25,893,607 -------------- $ 80,514,950 - --------------------------------------------------------------------------------------------------- Natural Gas - Distribution - 1.4% - --------------------------------------------------------------------------------------------------- Gaz de France 318,000 $ 10,623,167 Tokyo Gas Co. Ltd.^ 5,029,390 18,821,519 -------------- $ 29,444,686 - --------------------------------------------------------------------------------------------------- Network & Telecom - 1.5% - --------------------------------------------------------------------------------------------------- Nokia Oyj 1,666,340 $ 26,214,536 ZTE Corp. 1,791,000 5,006,615 -------------- $ 31,221,151 - --------------------------------------------------------------------------------------------------- Oil Services - 0.5% - --------------------------------------------------------------------------------------------------- Tenaris S.A., ADR^ 53,720 $ 6,149,866 Vallourec S.A 8,380 3,512,211 -------------- $ 9,662,077 - --------------------------------------------------------------------------------------------------- Pharmaceuticals - 7.7% - --------------------------------------------------------------------------------------------------- Astellas Pharma, Inc. 436,100 $ 15,563,915 AstraZeneca PLC 649,220 29,757,833 Chugai Pharmaceutical Co. Ltd.^ 1,477,210 27,941,820 Roche Holdings AG 349,910 48,479,136 Sanofi-Aventis^ 475,092 40,738,793 -------------- $ 162,481,497 - --------------------------------------------------------------------------------------------------- Printing & Publishing - 1.8% - --------------------------------------------------------------------------------------------------- Reed Elsevier PLC 1,386,600 $ 13,069,490 Yell Group PLC 3,104,550 25,361,985 -------------- $ 38,431,475 - --------------------------------------------------------------------------------------------------- Real Estate - 1.5% - --------------------------------------------------------------------------------------------------- Hypo Real Estate Holding AG 318,140 $ 15,667,246 Leopalace21 Corp.^ 630,500 11,802,775 Macquarie Goodman Group^ 1,269,150 4,096,212 -------------- $ 31,566,233 - --------------------------------------------------------------------------------------------------- Specialty Chemicals - 1.9% - --------------------------------------------------------------------------------------------------- Asahi Glass Co. Ltd. 1,801,000 $ 18,556,791 Kaneka Corp. 1,786,000 21,534,209 -------------- $ 40,091,000 - --------------------------------------------------------------------------------------------------- Specialty Stores^ - 1.3% - --------------------------------------------------------------------------------------------------- Grupo Elektra S.A. de C.V 1,033,130 $ 7,380,871 NEXT PLC 752,560 20,541,382 -------------- $ 27,922,253 - --------------------------------------------------------------------------------------------------- Telecommunications - Wireless - 2.3% - --------------------------------------------------------------------------------------------------- Vodafone Group PLC 17,598,200 $ 48,380,446 - --------------------------------------------------------------------------------------------------- Telephone Services - 6.0% - --------------------------------------------------------------------------------------------------- Deutsche Telekom AG^ 1,556,490 $ 29,616,732 FastWeb S.p.A.^* 446,835 19,223,400 Royal KPN N.V.^ 2,093,810 19,814,999 Singapore Telecommunications Ltd. 12,746,000 19,586,449 Telefonica S.A.^ 2,308,211 38,234,337 -------------- $ 126,475,917 - --------------------------------------------------------------------------------------------------- Tobacco - 0.8% - --------------------------------------------------------------------------------------------------- Swedish Match AB^ 1,325,420 $ 16,871,338 - --------------------------------------------------------------------------------------------------- Trucking - 0.5% - --------------------------------------------------------------------------------------------------- TNT N.V.^ 430,980 $ 11,086,117 - --------------------------------------------------------------------------------------------------- Utilities - Electric Power - 2.2% - --------------------------------------------------------------------------------------------------- Suez S.A.^ 1,569,510 $ 45,737,157 - --------------------------------------------------------------------------------------------------- Total Stocks (Identified Cost, $1,814,065,983) $2,076,046,976 - --------------------------------------------------------------------------------------------------- Short-Term Obligation - 1.3% - --------------------------------------------------------------------------------------------------- ISSUER PAR AMOUNT $ VALUE - --------------------------------------------------------------------------------------------------- General Electric Capital Corp., 3.58%, due 9/01/05, at Amortized Cost< $ 27,774,000 $ 27,774,000 - --------------------------------------------------------------------------------------------------- Collateral for Securities Loaned - 23.7% - --------------------------------------------------------------------------------------------------- ISSUER SHARES $ VALUE - --------------------------------------------------------------------------------------------------- Navigator Securities Lending Prime Portfolio, at Cost and Net Asset Value 498,699,585 $ 498,699,585 - --------------------------------------------------------------------------------------------------- Total Investments (Identified Cost, $2,340,539,568)(S) $2,602,520,561 - --------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - (23.4)% (492,796,859) - --------------------------------------------------------------------------------------------------- Net Assets - 100.0% $2,109,723,702 - --------------------------------------------------------------------------------------------------- * Non-income producing security. ^ All or a portion of this security is on loan. < The rate shown represents an annualized yield at time of purchase. (S) As of August 31, 2005, the fund had 70 securities representing $1,597,736,097 and 75.7% of net assets that were fair valued in accordance with the policies adopted by the Board of Trustees. ADR = American Depository Receipt GDR = Global Depository Receipt SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statement of Assets and Liabilities This statement represents your fund's balance sheet, which details the assets and liabilities composing the total value of the fund. AT 8/31/05 ASSETS - ------------------------------------------------------------------------------------------------------- Investments, at value, including $476,629,569 of securities on loan (identified cost, $2,340,539,568) $2,602,520,561 Receivable for investments sold 8,592,290 Receivable for fund shares sold 3,766,941 Interest and dividends receivable 2,638,347 Other assets 17 - ------------------------------------------------------------------------------------------------------- Total assets $2,617,518,156 - ------------------------------------------------------------------------------------------------------- LIABILITIES - ------------------------------------------------------------------------------------------------------- Payable to custodian $4,764,976 Payable for investments purchased 375,520 Payable for fund shares reacquired 2,871,077 Collateral for securities loaned, at value* 498,699,585 Payable to affiliates Management fee 48,020 Shareholder servicing costs 349,829 Distribution and service fees 17,717 Administrative services fee 696 Program manager fees 8 Retirement plan administration and services fees 19 Accrued expenses and other liabilities 667,007 - ------------------------------------------------------------------------------------------------------- Total liabilities $507,794,454 - ------------------------------------------------------------------------------------------------------- Net assets $2,109,723,702 - ------------------------------------------------------------------------------------------------------- NET ASSETS CONSIST OF: - ------------------------------------------------------------------------------------------------------- Paid-in capital $1,721,890,007 Unrealized appreciation (depreciation) on investments and translation of assets and liabilities in foreign currencies (net of $57,340 deferred country tax) 261,927,645 Accumulated undistributed net realized gain on investments and foreign currency transactions 112,866,138 Accumulated undistributed net investment income 13,039,912 - ------------------------------------------------------------------------------------------------------- Net assets $2,109,723,702 - ------------------------------------------------------------------------------------------------------- Shares of beneficial interest outstanding 126,229,482 - ------------------------------------------------------------------------------------------------------- Class A shares - ------------------------------------------------------------------------------------------------------- Net assets $958,877,717 Shares outstanding 57,589,528 - ------------------------------------------------------------------------------------------------------- Net asset value per share $16.65 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25X$16.65) $17.67 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class B shares - ------------------------------------------------------------------------------------------------------- Net assets $141,514,837 Shares outstanding 8,831,455 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $16.02 - ------------------------------------------------------------------------------------------------------- Class C shares - ------------------------------------------------------------------------------------------------------- Net assets $109,346,517 Shares outstanding 6,842,190 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $15.98 - ------------------------------------------------------------------------------------------------------- Class I shares - ------------------------------------------------------------------------------------------------------- Net assets $851,483,608 Shares outstanding 50,031,111 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $17.02 - ------------------------------------------------------------------------------------------------------- Class R shares (formerly Class R1) - ------------------------------------------------------------------------------------------------------- Net assets $44,299,702 Shares outstanding 2,677,997 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $16.54 - ------------------------------------------------------------------------------------------------------- Class R1 shares - ------------------------------------------------------------------------------------------------------- Net assets $171,049 Shares outstanding 10,680 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $16.02 - ------------------------------------------------------------------------------------------------------- Class R2 shares - ------------------------------------------------------------------------------------------------------- Net assets $178,221 Shares outstanding 11,113 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $16.04 - ------------------------------------------------------------------------------------------------------- Class R3 shares (formerly Class R2) - ------------------------------------------------------------------------------------------------------- Net assets $2,356,901 Shares outstanding 143,412 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $16.43 - ------------------------------------------------------------------------------------------------------- Class R4 shares - ------------------------------------------------------------------------------------------------------- Net assets $53,299 Shares outstanding 3,201 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $16.65 - ------------------------------------------------------------------------------------------------------- Class R5 shares - ------------------------------------------------------------------------------------------------------- Net assets $53,366 Shares outstanding 3,201 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $16.67 - ------------------------------------------------------------------------------------------------------- Class 529A shares - ------------------------------------------------------------------------------------------------------- Net assets $760,452 Shares outstanding 46,010 - ------------------------------------------------------------------------------------------------------- Net asset value per share $16.53 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25X$16.53) $17.54 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class 529B shares - ------------------------------------------------------------------------------------------------------- Net assets $173,616 Shares outstanding 10,930 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $15.88 - ------------------------------------------------------------------------------------------------------- Class 529C shares - ------------------------------------------------------------------------------------------------------- Net assets $454,417 Shares outstanding 28,654 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $15.86 - ------------------------------------------------------------------------------------------------------- On sales of $50,000 or more, the offering price of Class A and Class 529A shares are reduced. A contingent deferred sales charge may be imposed on redemptions of Class A, Class B, Class C, Class 529B and Class 529C shares. * Non-cash collateral not included. SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statement of Operations This statement describes how much your fund received in investment income and paid in expenses. It also describes any gains and/or losses generated by fund operations. YEAR ENDED 8/31/05 NET INVESTMENT INCOME - ------------------------------------------------------------------------------------------------------ Income Dividends $41,782,137 Interest 2,252,277 Foreign taxes withheld (3,968,715) - ------------------------------------------------------------------------------------------------------ Total investment income $40,065,699 - ------------------------------------------------------------------------------------------------------ Expenses Management fee $14,632,787 Distribution and service fees 5,203,349 Program manager fees 2,721 Shareholder servicing costs 2,667,090 Administrative services fee 181,608 Retirement plan administration and services fees 3,277 Trustees' compensation 34,589 Custodian fee 1,861,778 Printing 91,806 Postage 83,056 Auditing fees 53,234 Legal fees 54,441 Shareholder solicitation expenses 92,096 Miscellaneous 240,543 Reimbursement of expenses to investment adviser 449,724 - ------------------------------------------------------------------------------------------------------ Total expenses $25,652,099 - ------------------------------------------------------------------------------------------------------ Fees paid indirectly (58,648) Reduction of expenses by investment adviser (5,899) - ------------------------------------------------------------------------------------------------------ Net expenses $25,587,552 - ------------------------------------------------------------------------------------------------------ Net investment income $14,478,147 - ------------------------------------------------------------------------------------------------------ REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS - ------------------------------------------------------------------------------------------------------ Realized gain (loss) (identified cost basis) Investment transactions (net of $1,095,382 country tax) $145,882,191 Foreign currency transactions (694,685) - ------------------------------------------------------------------------------------------------------ Net realized gain (loss) on investments and foreign currency transactions $145,187,506 - ------------------------------------------------------------------------------------------------------ Change in unrealized appreciation (depreciation) Investments (net of $57,340 decrease in deferred country tax) $171,389,187 Translation of assets and liabilities in foreign currencies 38,342 - ------------------------------------------------------------------------------------------------------ Net unrealized gain (loss) on investments and foreign currency translation $171,427,529 - ------------------------------------------------------------------------------------------------------ Net realized and unrealized gain (loss) on investments and foreign currency $316,615,035 - ------------------------------------------------------------------------------------------------------ Change in net assets from operations $331,093,182 - ------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statements of Changes in Net Assets This statement describes the increases and/or decreases in net assets resulting from operations, any distributions, and any shareholder transactions. FOR YEARS ENDED 8/31 2005 2004 CHANGE IN NET ASSETS - ------------------------------------------------------------------------------------------------------- FROM OPERATIONS - ------------------------------------------------------------------------------------------------------- Net investment income $14,478,147 $8,679,536 Net realized gain (loss) on investments and foreign currency transactions 145,187,506 153,965,405 Net unrealized gain (loss) on investments and foreign currency translation 171,427,529 40,974,661 - ------------------------------------------------------------------------------------------------------- Change in net assets from operations $331,093,182 $203,619,602 - ------------------------------------------------------------------------------------------------------- DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------- From net investment income Class A $(3,826,893) $(259,483) Class B (10,565) -- Class C (77,330) -- Class I (4,400,339) (782,661) Class R (170,724) (13,715) Class R3 (4,202) (13) Class 529A (2,107) (122) Class 529B (115) -- Class 529C (151) -- - ------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions Class A (30,675,820) -- - ------------------------------------------------------------------------------------------------------- Class B (5,867,774) -- - ------------------------------------------------------------------------------------------------------- Class C (3,969,467) -- - ------------------------------------------------------------------------------------------------------- Class I (23,687,787) -- - ------------------------------------------------------------------------------------------------------- Class R (1,210,411) -- - ------------------------------------------------------------------------------------------------------- Class R3 (24,101) -- - ------------------------------------------------------------------------------------------------------- Class 529A (18,925) -- - ------------------------------------------------------------------------------------------------------- Class 529B (6,169) -- - ------------------------------------------------------------------------------------------------------- Class 529C (14,528) -- - ------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(73,967,408) $(1,055,994) - ------------------------------------------------------------------------------------------------------- Change in net assets from fund share transactions $577,345,880 $313,361,923 - ------------------------------------------------------------------------------------------------------- Redemption fees $3,533 $19,901 - ------------------------------------------------------------------------------------------------------- Total change in net assets $834,475,187 $515,945,432 - ------------------------------------------------------------------------------------------------------- NET ASSETS - ------------------------------------------------------------------------------------------------------- At beginning of period $1,275,248,515 $759,303,083 At end of period (including accumulated undistributed net investment income of $13,039,912 and $8,304,426, respectively) $2,109,723,702 $1,275,248,515 - ------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Financial Highlights The financial highlights table is intended to help you understand the fund's financial performance for the past 5 years (or, if shorter, the period of the fund's operation). Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund (assuming reinvestment of all distributions) held for the entire period. This information has been audited by the fund's independent registered public accounting firm, whose report, together with the fund's financial statements, are included in this report. CLASS A YEARS ENDED 8/31 ------------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $14.25 $11.53 $10.78 $12.25 $16.19 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment income (loss) $0.12 $0.10 $0.04 $(0.00)+++ $(0.00)+++ Net realized and unrealized gain (loss) on investments and foreign currency 3.04 2.63 0.71 (1.47) (3.44) - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.16 $2.73 $0.75 $(1.47) $(3.44) - ---------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.08) $(0.01) $-- $-- $(0.09) From net realized gain on investments and foreign currency transactions (0.68) -- -- -- (0.41) - ---------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.76) $(0.01) $-- $-- $(0.50) - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.65 $14.25 $11.53 $10.78 $12.25 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 22.67 23.65 6.96*** (12.00)*** (21.76)*** - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.52 1.61 1.80 1.86 1.84 Expenses after expense reductions## 1.55^^ 1.67^^ 1.75 1.77 1.76 Net investment income (loss) 0.80 0.75 0.36 (0.02) (0.02) Portfolio turnover 79 102 96 153 131 Net assets at end of period (000 Omitted) $958,878 $593,574 $387,732 $313,418 $240,231 - ---------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS B YEARS ENDED 8/31 -------------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $13.76 $11.19 $10.54 $12.04 $15.98 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment income (loss) $0.01 $0.02 $(0.03) $(0.08) $(0.10) Net realized and unrealized gain (loss) on investments and foreign currency 2.93 2.55 0.68 (1.42) (3.39) - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.94 $2.57 $0.65 $(1.50) $(3.49) - ---------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.00)+++ $-- $-- $-- $(0.04) From net realized gain on investments and foreign currency transactions (0.68) -- -- -- (0.41) - ---------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.68) $-- $-- $-- $(0.45) - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.02 $13.76 $11.19 $10.54 $12.04 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 21.77 22.97 6.17*** (12.46)*** (22.27)*** - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.17 2.25 2.45 2.51 2.49 Expenses after expense reductions## 2.20^^ 2.31^^ 2.40 2.42 2.41 Net investment income (loss) 0.08 0.12 (0.32) (0.69) (0.71) Portfolio turnover 79 102 96 153 131 Net assets at end of period (000 Omitted) $141,515 $116,165 $88,177 $82,659 $82,135 - ---------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS C YEARS ENDED 8/31 -------------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $13.73 $11.17 $10.52 $12.02 $15.97 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment income (loss) $0.02 $0.02 $(0.03) $(0.08) $(0.09) Net realized and unrealized gain (loss) on investments and foreign currency 2.92 2.54 0.68 (1.42) (3.40) - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.94 $2.56 $0.65 $(1.50) $(3.49) - ---------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.01) $-- $-- $-- $(0.05) From net realized gain on investments and foreign currency transactions (0.68) -- -- -- (0.41) - ---------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.69) $-- $-- $-- $(0.46) - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $15.98 $13.73 $11.17 $10.52 $12.02 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 21.84 22.92 6.18*** (12.48)*** (22.27)*** - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.17 2.25 2.45 2.51 2.49 Expenses after expense reductions## 2.20^^ 2.31^^ 2.40 2.42 2.41 Net investment income (loss) 0.13 0.15 (0.32) (0.09) (0.10) Portfolio turnover 79 102 96 153 131 Net assets at end of period (000 Omitted) $109,347 $75,580 $46,022 $43,046 $47,375 - ---------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS I YEARS ENDED 8/31 -------------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $14.54 $11.75 $10.95 $12.39 $16.33 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment income $0.19 $0.16 $0.10 $0.04 $0.03 Net realized and unrealized gain (loss) on investments and foreign currency 3.10 2.66 0.70 (1.48) (3.46) - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.29 $2.82 $0.80 $(1.44) $(3.43) - ---------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.13) $(0.03) $-- $-- $(0.10) From net realized gain on investments and foreign currency transactions (0.68) -- -- -- (0.41) - ---------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.81) $(0.03) $-- $-- $(0.51) - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $17.02 $14.54 $11.75 $10.95 $12.39 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)& 23.09 24.05 7.31*** (11.62)*** (21.49)*** - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.17 1.26 1.45 1.51 1.49 Expenses after expense reductions## 1.20^^ 1.32^^ 1.40 1.42 1.41 Net investment income 1.18 1.18 0.95 0.38 0.25 Portfolio turnover 79 102 96 153 131 Net assets at end of period (000 Omitted) $851,484 $469,181 $232,328 $18,207 $10,150 - ---------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R (FORMERLY CLASS R1) YEARS ENDED 8/31 ------------------------------------------------- 2005= 2004= 2003** Net asset value, beginning of period $14.20 $11.52 $10.32### - -------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - -------------------------------------------------------------------------------------------------------------------- Net investment income (loss) $0.11 $0.09 $(0.01) Net realized and unrealized gain (loss) on investments and foreign currency 3.01 2.61 1.21 - -------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.12 $2.70 $1.20 - -------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------- From net investment income $(0.10) $(0.02) $-- - -------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions (0.68) -- -- - -------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.78) $(0.02) $-- - -------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.54 $14.20 $11.52 - -------------------------------------------------------------------------------------------------------------------- Total return (%)& 22.40 23.50 11.63++###*** - -------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.66 1.75 1.95+ Expenses after expense reductions## 1.69^^ 1.81^^ 1.90+ Net investment income (loss) 0.73 0.69 (0.09)+ Portfolio turnover 79 102 96 Net assets at end of period (000 Omitted) $44,300 $19,596 $4,810 - -------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R1 CLASS R2 YEAR ENDED YEAR ENDED 8/31/05** 8/31/05** Net asset value, beginning of period $15.07 $15.07 - -------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - -------------------------------------------------------------------------------------------------------- Net investment income $0.03 $0.06 Net realized and unrealized gain (loss) on investments and foreign currency 0.92 0.91 - -------------------------------------------------------------------------------------------------------- Total from investment operations $0.95 $0.97 - -------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.02 $16.04 - -------------------------------------------------------------------------------------------------------- Total return (%)& 6.30++ 6.44++ - -------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.36+ 2.04+ Expenses after expense reductions## 2.39^^+ 2.07^^+ Net investment income 0.46+ 1.12+ Portfolio turnover 79 79 Net assets at end of period (000 Omitted) $171 $178 - -------------------------------------------------------------------------------------------------------- CLASS R3 (FORMERLY CLASS R2) YEARS ENDED 8/31 ------------------------------------- 2005= 2004**= Net asset value, beginning of period $14.16 $12.71### - -------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - -------------------------------------------------------------------------------------------------------- Net investment income $0.11 $0.02 Net realized and unrealized gain (loss) on investments and foreign currency 2.96 1.46 - -------------------------------------------------------------------------------------------------------- Total from investment operations $3.07 $1.48 - -------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------- From net investment income $(0.12) $(0.03) - -------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions (0.68) -- - -------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.80) $(0.03) - -------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.43 $14.16 - -------------------------------------------------------------------------------------------------------- Total return (%)& 22.13 11.69###++ - -------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.92 2.01+ Expenses after expense reductions## 1.95^^ 2.07^^+ Net investment income 0.74 0.18+ Portfolio turnover 79 102 Net assets at end of period (000 Omitted) $2,357 $431 - -------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R4 CLASS R5 YEAR ENDED YEAR ENDED 8/31/05** 8/31/05** Net asset value, beginning of period $15.62 $15.62 - -------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - -------------------------------------------------------------------------------------------------------------------------- Net investment income $0.12 $0.14 Net realized and unrealized gain (loss) on investments and foreign currency 0.91 0.91 - -------------------------------------------------------------------------------------------------------------------------- Total from investment operations $1.03 $1.05 - -------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.65 $16.67 - -------------------------------------------------------------------------------------------------------------------------- Total return (%)& 6.59++ 6.72++ - -------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.55+ 1.25+ Expenses after expense reductions## 1.58^^+ 1.28^^+ Net investment income 1.79+ 2.09+ Portfolio turnover 79 79 Net assets at end of period (000 Omitted) $53 $53 - -------------------------------------------------------------------------------------------------------------------------- CLASS 529A YEARS ENDED 8/31 ---------------------------------------------------------------------- 2005= 2004= 2003 2002** Net asset value, beginning of period $14.18 $11.50 $10.78 $10.66 - -------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - -------------------------------------------------------------------------------------------------------------------------- Net investment income (loss) $0.10 $0.08 $0.03 $(0.00)+++ Net realized and unrealized gain (loss) on investments and foreign currency 3.01 2.61 0.69 0.12 - -------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.11 $2.69 $0.72 $0.12 - -------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.08) $(0.01) $-- $---- - -------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions (0.68) -- -- ---- - -------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.76) $(0.01) $-- $---- - -------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $16.53 $14.18 $11.50 $10.78 - -------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 22.35 23.39 6.68*** 1.13++*** - -------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.76 1.85 2.05 2.11+ Expenses after expense reductions## 1.79^^ 1.91^^ 2.00 2.02+ Net investment income (loss) 0.65 0.62 0.30 (0.20)+ Portfolio turnover 79 102 96 153 Net assets at end of period (000 Omitted) $760 $332 $112 $11 - -------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529B YEARS ENDED 8/31 ------------------------------------------------------------------ 2005= 2004= 2003 2002** Net asset value, beginning of period $13.68 $11.17 $10.54 $10.42 - ------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.02) $(0.00)+++ $(0.05) $(0.00)+++ Net realized and unrealized gain (loss) on investments and foreign currency 2.91 2.51 0.68 0.12 - ------------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.89 $2.51 $0.63 $0.12 - ------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.01) $-- $-- $-- From net realized gain on investments and foreign currency transactions (0.68) -- -- -- - ------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.69) $-- $-- $-- - ------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $15.88 $13.68 $11.17 $10.54 - ------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 21.54 22.47 5.98*** 1.15++*** - ------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.42 2.50 2.70 2.76+ Expenses after expense reductions## 2.45^^ 2.56^^ 2.65 2.67+ Net investment loss (0.13) (0.03) (0.43) (0.45)+ Portfolio turnover 79 102 96 153 Net assets at end of period (000 Omitted) $174 $110 $41 $5 - ------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529C YEARS ENDED 8/31 --------------------------------------------------------------- 2005= 2004= 2003 2002** Net asset value, beginning of period $13.66 $11.14 $10.52 $10.40 - ------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.01) $(0.00)+++ $(0.04) $(0.00)+++ Net realized and unrealized gain (loss) on investments and foreign currency 2.90 2.52 0.66 0.12 - ------------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.89 $2.52 $0.62 $0.12 - ------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.01) $-- $-- $-- From net realized gain on investments and foreign currency transactions (0.68) -- -- -- - ------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.69) $-- $-- $-- - ------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $15.86 $13.66 $11.14 $10.52 - ------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 21.53 22.62 5.89*** 1.15++*** - ------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.42 2.49 2.70 2.76+ Expenses after expense reductions## 2.45^^ 2.55^^ 2.65 2.67+ Net investment loss (0.07) (0.02) (0.36) (0.45)+ Portfolio turnover 79 102 96 153 Net assets at end of period (000 Omitted) $454 $280 $81 $5 - ------------------------------------------------------------------------------------------------------------------------- ** For the period from the class' inception, December 31, 2002 (Class R), July 31, 2002 (Classes 529A, 529B, and 529C), October 31, 2003 (Class R3), and April 1, 2005 (Classes R1, R2, R4, and R5) through the stated period end. *** Certain expenses have been reduced without which performance would have been lower. + Annualized. ++ Not annualized. +++ Per share amount was less than $0.01. # Per share data are based on average shares outstanding. ## Ratios do not reflect reductions from fees paid indirectly. ### The net asset values and total returns previously reported as $10.38 and 10.98% (Class R), and $12.56 and 13.03% (Class R3), respectively, have been revised to reflect the net asset value from the day prior to the class' inception date. The net asset values and total returns previously reported were from inception date, the date the share classes were first available to public shareholders. ^^ Ratio includes a reimbursement fee for expenses borne by MFS in prior years under the then existing expense reimbursement agreement. (+) Total returns do not include any applicable sales charges. & From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. = Redemption fees charged by the fund during this period resulted in a per share impact of less than $0.01. SEE NOTES TO FINANCIAL STATEMENTS NOTES TO FINANCIAL STATEMENTS (1) BUSINESS AND ORGANIZATION MFS Research International Fund (the fund) is a diversified series of MFS Series Trust I (the trust). The trust is organized as a Massachusetts business trust and is registered under the Investment Company Act of 1940, as amended, as an open-end management investment company. (2) SIGNIFICANT ACCOUNTING POLICIES GENERAL - The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The fund can invest in foreign securities. Investments in foreign securities are vulnerable to the effects of changes in the relative values of the local currency and the U.S. dollar and to the effects of changes in each country's legal, political, and economic environment. INVESTMENT VALUATIONS - Equity securities in the fund's portfolio for which market quotations are available are valued at the last sale or official closing price as reported by an independent pricing service on the primary market or exchange on which they are primarily traded, or at the last quoted bid price for securities in which there were no sales during the day. Equity securities traded over the counter are valued at the last sales price traded each day as reported by an independent pricing service, or to the extent there are no sales reported, such securities are valued on the basis of quotations obtained from brokers and dealers. Short-term obligations with a remaining maturity in excess of 60 days will be valued upon dealer-supplied valuations. All other short-term obligations in the fund's portfolio are valued at amortized cost, which approximates market value as determined by the Board of Trustees. Money market mutual funds are valued at net asset value. Investment valuations, other assets, and liabilities initially expressed in foreign currencies are converted each business day into U.S. dollars based upon current exchange rates. When pricing service information or market quotations are not readily available, securities are priced at fair value as determined under the direction of the Board of Trustees. For example, significant events (such as movement in the U.S. securities market, or other regional and local developments) may occur between the time that foreign markets close (where the security is principally traded) and the time that the fund calculates its net asset value (generally, the close of the NYSE) that may impact the value of securities traded in these foreign markets. In these cases, the fund may utilize information from an external vendor or other sources to adjust closing market quotations of foreign equity securities to reflect what it believes to be the fair value of the securities as of the fund's valuation time. Because the frequency of significant events is not predictable, fair valuation of foreign equity securities may occur on a frequent basis. REPURCHASE AGREEMENTS - The fund may enter into repurchase agreements with institutions that the fund's investment adviser has determined are creditworthy. Each repurchase agreement is recorded at cost. The fund requires that the securities collateral in a repurchase transaction be transferred to the custodian in a manner sufficient to enable the fund to obtain those securities in the event of a default under the repurchase agreement. The fund monitors, on a daily basis, the value of the collateral to ensure that its value, including accrued interest, is greater than amounts owed to the fund under each such repurchase agreement. The fund, along with other affiliated entities of Massachusetts Financial Services Company (MFS), may utilize a joint trading account for the purpose of entering into one or more repurchase agreements. FOREIGN CURRENCY TRANSLATION - Purchases and sales of foreign investments, income, and expenses are converted into U.S. dollars based upon currency exchange rates prevailing on the respective dates of such transactions. Gains and losses attributable to foreign currency exchange rates on sales of securities are recorded for financial statement purposes as net realized gains and losses on investments. Gains and losses attributable to foreign exchange rate movements on income and expenses are recorded for financial statement purposes as foreign currency transaction gains and losses. That portion of both realized and unrealized gains and losses on investments that results from fluctuations in foreign currency exchange rates is not separately disclosed. SECURITY LOANS - State Street Bank and Trust Company ("State Street"), as lending agent, may loan the securities of the fund to certain qualified institutions (the "Borrowers") approved by the fund. The loans are collateralized at all times by cash and/or U.S. Treasury securities in an amount at least equal to the market value of the securities loaned. State Street provides the fund with indemnification against Borrower default. The fund bears the risk of loss with respect to the investment of cash collateral. On loans collateralized by cash, the cash collateral is invested in a money market fund or short-term securities. A portion of the income generated upon investment of the collateral is remitted to the Borrowers, and the remainder is allocated between the fund and the lending agent. On loans collateralized by U.S. Treasury securities, a fee is received from the Borrower, and is allocated between the fund and the lending agent. Income from securities lending is included in interest income on the Statement of Operations. The dividend and interest income earned on the securities loaned is accounted for in the same manner as other dividend and interest income. At August 31, 2005, the value of securities loaned was $476,629,569. These loans were collateralized by cash of $498,699,585 and non-cash U.S. Treasury obligations of $1,084,126. SHORT TERM FEES - For purchases made prior to July 1, 2004, the fund charges a 2% redemption fee (which is retained by the fund) on proceeds from Class A, Class B, Class C, and Class I shares redeemed or exchanged within 30 calendar days following their acquisition (either by purchase or exchange). For purchases made on or after July 1, 2004 and before April 1, 2005, the fund will charge a 2% redemption fee on proceeds from Class A, Class B, Class C, and Class I shares redeemed or exchanged within 5 business days following their acquisition. Due to systems limitations associated with the transition from applying a 30 calendar day redemption fee to a 5 business day redemption fee, the fund did not impose redemption fees with respect to purchases made in June 2004 followed by redemptions made in July 2004. Effective April 1, 2005, the fund will no longer charge a redemption fee. See the fund's prospectus for details. Any redemption fees charged are accounted for as an addition to paid- in capital. INVESTMENT TRANSACTIONS AND INCOME - Investment transactions are recorded on the trade date. Interest income is recorded on the accrual basis. All premium and discount is amortized or accreted for financial statement purposes in accordance with U.S. generally accepted accounting principles. All discount is accreted for tax reporting purposes as required by federal income tax regulations. Dividends received in cash are recorded on the ex-dividend date. Dividend and interest payments received in additional securities are recorded on the ex-dividend or ex-interest date in an amount equal to the value of the security on such date. The fund may receive proceeds from litigation settlements involving its portfolio holdings. Any proceeds received are reflected in realized gain/loss in the Statement of Operations, or in unrealized gain/loss if the security is still held by the fund. FEES PAID INDIRECTLY - The fund's custody fee is reduced according to an arrangement that measures the value of cash deposited with the custodian by the fund. During the year ended August 31, 2005, the fund's custodian fees were reduced by $58,648 under this arrangement. The fund has entered into a commission recapture agreement, under which certain brokers will credit the fund a portion of the commissions generated, to offset certain expenses of the fund. For the year ended August 31, 2005, there were no commissions recaptured. These amounts are shown as a reduction of total expenses on the Statement of Operations. TAX MATTERS AND DISTRIBUTIONS - The fund's policy is to comply with the provisions of the Internal Revenue Code (the Code) applicable to regulated investment companies and to distribute to shareholders all of its net taxable income, including any net realized gain on investments. Accordingly, no provision for federal income or excise tax is provided. Distributions to shareholders are recorded on the ex-dividend date. The fund distinguishes between distributions on a tax basis and a financial reporting basis and only distributions in excess of tax basis earnings and profits are reported in the financial statements as distributions from paid-in capital. Differences in the recognition or classification of income between the financial statements and tax earnings and profits, which result in temporary over-distributions for financial statement purposes, are classified as distributions in excess of net investment income or net realized gains. Common types of book and tax differences that could occur include differences in accounting for foreign currency transactions, wash sales, foreign taxes, passive foreign investment companies and by treating a portion of the proceeds from redemptions as a distribution from realized gains for tax purposes. The tax character of distributions declared for the years ended August 31, 2005 and August 31, 2004 was as follows: 8/31/05 8/31/04 Distributions declared from: Ordinary income $8,492,426 $1,055,994 Long-term capital gain 65,474,982 -- --------------------------------------------------------------- $73,967,408 $1,055,994 During the year ended August 31, 2005, accumulated undistributed net investment income decreased by $1,250,235, and accumulated undistributed net realized gain on investments and foreign currency transactions decreased by $8,714,623, and paid-in capital increased by $9,964,858 due to differences between book and tax accounting for foreign currency transactions, foreign taxes, passive foreign investment companies and by treating a portion of the proceeds from redemptions as a distribution from realized gains for tax purposes. This change had no effect on the net assets or net asset value per share. As of August 31, 2005, the components of distributable earnings (accumulated losses) on a tax basis were as follows: Undistributed ordinary income $79,481,267 Undistributed long-term capital gain 50,399,955 Unrealized appreciation (depreciation) 258,125,779 Other temporary differences (173,306) Realized gain is reported net of any foreign capital gains tax in the Statement of Operations. MULTIPLE CLASSES OF SHARES OF BENEFICIAL INTEREST - The fund offers multiple classes of shares, which differ in their respective distribution and service fees. All shareholders bear the common expenses of the fund based on daily net assets of each class, without distinction between share classes. Dividends are declared separately for each class. Differences in per share dividend rates are generally due to differences in separate class expenses. Class B and Class 529B shares will convert to Class A and Class 529A shares, respectively, approximately eight years after purchase. (3) TRANSACTIONS WITH AFFILIATES INVESTMENT ADVISER - The fund has an investment advisory agreement with Massachusetts Financial Services Company (MFS) to provide overall investment advisory and administrative services, and general office facilities. The management fee is computed daily and paid monthly at the following annual rates: First $1.0 billion of average daily net assets 0.90% Next $1.0 billion of average daily net assets 0.80% Average daily net assets in excess of $2.0 billion 0.70% The management fee incurred for the year ended August 31, 2005, was equivalent to an annual effective rate of 0.86% of the fund's average daily net assets. MFS contractually agreed, subject to reimbursement, to bear a portion of the fund's operating expenses, exclusive of management, distribution and service, retirement plan administration and services, program manager, and certain other fees and expenses, such that these operating expenses did not exceed 0.40% of the fund's average daily net assets annually. To the extent that the fund's actual operating expenses were below 0.40%, the excess was applied to unreimbursed amounts paid by MFS under the current agreement. This reimbursement agreement terminated on December 31, 2004. During the year ended August 31, 2005, the fund reimbursed MFS for a portion of the expenses borne by MFS, which is reflected as a reimbursement of expenses to investment adviser on the Statement of Operations. The fund will not be required to reimburse MFS $175,232 for unreimbursed expenses. Effective January 1, 2005, the fund has contractually agreed to limit the fund's operating expenses and to pay the fund's operating expenses, exclusive of management, distribution and service, retirement plan administration and services, program manager, and certain other fees and expenses, such that the fund's operating expenses do not exceed 0.40% of the fund's average daily net assets annually. This new arrangement will be in effect until January 1, 2006, unless the fund's Board of Trustees consents to an earlier revision or termination of this agreement. DISTRIBUTOR - MFS Fund Distributors, Inc. (MFD), a wholly owned subsidiary of MFS, as distributor, received $122,115 and $1,241 for the year ended August 31, 2005, as its portion of the initial sales charge on sales of Class A and Class 529A shares of the fund, respectively. The Board of Trustees has adopted a distribution plan for certain class shares pursuant to Rule 12b-1 of the Investment Company Act of 1940. The fund's distribution plan provides that the fund will pay MFD for services provided by MFD and financial intermediaries in connection with the distribution and servicing of certain share classes. One component of the plan is a distribution fee paid to and retained by MFD. Another component of the plan is a service fee paid to MFD which subsequently pays a portion of this fee to financial intermediaries that enter into sales or service agreements with MFD, or its affiliates, based on the average daily net assets of accounts attributable to such intermediaries. Distribution Fee Plan Table: TOTAL ANNUAL SERVICE FEE DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE RETAINED AND SERVICE FEE RATE FEE RATE PLAN(1) RATE(2) BY MFD(3) FEE Class A 0.10% 0.25% 0.35% 0.35% $62,974 $2,743,743 Class B 0.75% 0.25% 1.00% 1.00% 1,044 1,336,341 Class C 0.75% 0.25% 1.00% 1.00% 754 941,668 Class R 0.25% 0.25% 0.50% 0.50% 91 168,064 Class R1 0.50% 0.25% 0.75% 0.75% 61 257 Class R2 0.25% 0.25% 0.50% 0.50% 22 114 Class R3 0.25% 0.25% 0.50% 0.50% 28 5,959 Class R4 -- 0.25% 0.25% 0.25% 30 52 Class 529A 0.25% 0.25% 0.50% 0.35% 266 2,010 Class 529B 0.75% 0.25% 1.00% 1.00% 17 1,473 Class 529C 0.75% 0.25% 1.00% 1.00% 68 3,668 - -------------------------------------------------------------------------------------------------------------------------- Total Distribution and Service Fees $5,203,349 (1) In accordance with the distribution plan for certain classes, the fund pays distribution and/or service fees up to these annual percentage rates of each class' average daily net assets. (2) The annual effective rates represent actual fees incurred under the distribution plan for the year ended August 31, 2005 based on each class' average daily net assets. 0.10% of the Class 529A distribution fee is currently being paid by the fund. Payment of the remaining 0.15% of the Class 529A distribution fee is not yet implemented and will commence on such date as the fund's Board of Trustees may determine. (3) For the year ended August 31, 2005, MFD retained these service fees. Certain Class A, Class C and Class 529C shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within 12 months of purchase. Class B and Class 529B shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within six years of purchase. MFD retained all contingent deferred sales charges. Contingent deferred sales charges imposed during the year ended August 31, 2005, were as follows: AMOUNT Class A $13,817 Class B 174,428 Class C 10,431 Class 529B -- Class 529C -- The fund has entered into and may from time to time enter into contracts with program managers and other parties which administer the tuition programs through which an investment in the fund's 529 share classes is made. The fund has entered into an agreement with MFD pursuant to which MFD receives an annual fee of up to 0.35% from the fund based solely upon the value of the fund's 529 share classes attributable to tuition programs to which MFD, or a third party which contracts with MFD, provides administrative services. The current fee has been established at 0.25% annually of average net assets of the fund's 529 share classes. The fee may only be increased with the approval of the Board of Trustees who oversees the fund. The services provided by MFD, or a third party with which MFD contracts, include recordkeeping and tax reporting and account services, as well as services designed to maintain the program's compliance with the Internal Revenue Code and other regulatory requirements. Program manager fees for the year ended August 31, 2005, were as follows: AMOUNT Class 529A $1,436 Class 529B 368 Class 529C 917 ---------------------------------------------------------- Total Program Manager Fees $2,721 SHAREHOLDER SERVICING AGENT - The fund pays a portion of shareholder servicing costs to MFS Service Center, Inc. (MFSC), a wholly-owned subsidiary of MFS. MFSC receives a fee from the fund, for its services as shareholder servicing agent, set periodically under the supervision of the fund's Board of Trustees. For the year ended August 31, 2005, the fee was $1,796,616, which equated to 0.1054% annually of the fund's average daily net assets. MFSC also receives payment from the fund for out-of-pocket and sub-accounting expenses paid by MFSC on behalf of the fund. For the year ended August 31, 2005, these costs amounted to $655,555. ADMINISTRATOR - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to certain funds for which MFS acts as investment adviser. Under an administrative services agreement, the funds may partially reimburse MFS the costs incurred to provide these services, subject to review and approval by the Board of Trustees. Each fund is charged a fixed amount plus a fee based on calendar year average net assets. Effective July 1, 2005, the fund's annual fixed amount is $10,000. The administrative services fee incurred for the year ended August 31, 2005 was equivalent to an annual effective rate of 0.0107% of the fund's average daily net assets. In addition to the administrative services provided by MFS to the fund as described above, MFS is responsible for providing certain retirement plan administration and services with respect to certain Class R shares. These services include various administrative, recordkeeping, and communication/ educational services with respect to the retirement plans which invest in these shares, and may be provided directly by MFS or by a third party. For the year ended August 31, 2005, the fund paid an annual retirement plan administration and services fee up to the following annual percentage rates of each class' average daily net assets: AMOUNT FEE TOTAL RETAINED RATE AMOUNT BY MFS Class R1 0.45% $154 $26 Class R2 0.40% 89 3 Class R3 (formerly Class R2) 0.25% 2,981 757 Class R4 0.15% 32 -- Class R5 0.10% 21 -- - ------------------------------------------------------------------------------- Total Retirement Plan Administration and Services Fees $3,277 $786 TRUSTEES' COMPENSATION - The fund pays compensation to Independent Trustees in the form of a retainer, attendance fees, and additional compensation to Board and Committee chairpersons. The fund does not pay compensation directly to Trustees who are officers of the investment adviser, or to officers of the fund, all of whom receive remuneration for their services to the fund from MFS. Certain officers and Trustees of the fund are officers or directors of MFS, MFD, and MFSC. The fund has an unfunded, defined benefit plan for retired Independent Trustees which resulted in a pension expense of $2,412. The fund also has an unfunded retirement benefit deferral plan for certain current Independent Trustees which resulted in a net decrease of $584. Both amounts are included in Trustees compensation for the year ended August 31, 2005. OTHER - This fund and certain other MFS funds (the funds) have entered into a services agreement (the Agreement) which provides for payment of fees by the funds to Tarantino LLC in return for the provision of services of an Independent Chief Compliance Officer (ICCO) for the funds. The ICCO is an officer of the funds and the sole member of Tarantino LLC. MFS has agreed to reimburse the fund for a portion of the payments made by the funds to Tarantino LLC in the amount of $5,899, which is shown as a reduction of total expenses in the Statement of Operations. Additionally, MFS has agreed to bear all expenses associated with office space, other administrative support, and supplies provided to the ICCO. The funds can terminate the Agreement with Tarantino LLC at any time under the terms of the Agreement. The fund's investment adviser, MFS, was the subject of an administrative proceeding regarding disclosure of brokerage allocation practices in connection with fund sales. As a result, proceeds in the amount of $8,010 were paid to the fund on February 16, 2005. (4) PORTFOLIO SECURITIES Purchases and sales of investments, other than U.S. government securities, purchased option transactions, and short-term obligations, aggregated $1,838,543,763 and $1,318,680,977, respectively. The cost and unrealized appreciation and depreciation in the value of the investments owned by the fund, as computed on a federal income tax basis, are as follows: Aggregate cost $2,344,394,782 ---------------------------------------------------------- Gross unrealized appreciation $267,991,297 Gross unrealized depreciation (9,865,518) ---------------------------------------------------------- Net unrealized appreciation $258,125,779 (5) SHARES OF BENEFICIAL INTEREST The fund's Declaration of Trust permits the Trustees to issue an unlimited number of full and fractional shares of beneficial interest. Transactions in fund shares were as follows: Year ended 8/31/05 Year ended 8/31/04 SHARES AMOUNT SHARES AMOUNT CLASS A SHARES Shares sold 28,794,080 $449,353,092 25,499,429 $340,976,897 Shares issued to shareholders in reinvestment of distributions 1,587,913 24,279,191 14,847 197,567 Shares reacquired (14,437,115) (224,139,499) (17,498,280) (239,404,354) - ------------------------------------------------------------------------------------------------------------ Net change 15,944,878 $249,492,784 8,015,996 $101,770,110 CLASS B SHARES Shares sold 2,362,199 $35,339,373 2,527,350 $33,384,413 Shares issued to shareholders in reinvestment of distributions 340,629 5,034,486 -- -- Shares reacquired (2,316,453) (34,824,715) (1,959,753) (25,909,743) - ------------------------------------------------------------------------------------------------------------ Net change 386,375 $5,549,144 567,597 $7,474,670 CLASS C SHARES Shares sold 2,336,111 $34,976,257 2,467,171 $32,082,699 Shares issued to shareholders in reinvestment of distributions 208,302 3,070,381 -- -- Shares reacquired (1,206,741) (17,997,574) (1,081,531) (14,358,259) - ------------------------------------------------------------------------------------------------------------ Net change 1,337,672 $20,049,064 1,385,640 $17,724,440 CLASS I SHARES Shares sold 19,429,388 $307,426,523 14,828,774 $204,201,804 Shares issued to shareholders in reinvestment of distributions 1,781,510 27,773,750 57,562 771,329 Shares reacquired (3,443,470) (55,618,095) (2,402,041) (32,740,066) - ------------------------------------------------------------------------------------------------------------ Net change 17,767,428 $279,582,178 12,484,295 $172,233,067 CLASS R SHARES (FORMERLY CLASS R1) Shares sold 1,840,882 $28,392,688 1,482,311 $20,401,641 Shares issued to shareholders in reinvestment of distributions 86,925 1,321,265 1,036 13,608 Shares reacquired (630,288) (9,740,922) (520,404) (7,092,308) - ------------------------------------------------------------------------------------------------------------ Net change 1,297,519 $19,973,031 962,943 $13,322,941 Period ended 8/31/05* SHARES AMOUNT CLASS R1 SHARES Shares sold 10,752 $164,313 Shares reacquired (72) (1,129) - -------------------------------------------------------------------------- Net change 10,680 $163,184 CLASS R2 SHARES Shares sold 11,113 $173,543 Year ended 8/31/05 Year ended 8/31/04 SHARES AMOUNT SHARES AMOUNT CLASS R3 SHARES (FORMERLY CLASS R2) Shares sold 133,725 $2,068,055 53,628 $745,402 Shares issued to shareholders in reinvestment of distributions 1,871 28,303 -- -- Shares reacquired (22,619) (345,295) (23,193) (321,470) - ------------------------------------------------------------------------------------------------------------ Net change 112,977 $1,751,063 30,435 $423,932 Period ended 8/31/05* SHARES AMOUNT CLASS R4 SHARES Shares sold 3,201 $50,000 CLASS R5 SHARES Shares sold 3,201 $50,000 Year ended 8/31/05 Year ended 8/31/04 SHARES AMOUNT SHARES AMOUNT CLASS 529A SHARES Shares sold 25,961 $402,042 14,375 $195,143 Shares issued to shareholders in reinvestment of distributions 1,383 21,032 9 122 Shares reacquired (4,742) (74,061) (767) (10,500) - ------------------------------------------------------------------------------------------------------------ Net change 22,602 $349,013 13,617 $184,765 CLASS 529B SHARES Shares sold 3,708 $53,775 5,351 $69,686 Shares issued to shareholders in reinvestment of distributions 428 6,284 -- -- Shares reacquired (1,242) (18,403) (988) (13,139) - ------------------------------------------------------------------------------------------------------------ Net change 2,894 $41,656 4,363 $56,547 CLASS 529C SHARES Shares sold 8,456 $126,224 14,470 $187,605 Shares issued to shareholders in reinvestment of distributions 1,002 14,679 -- -- Shares reacquired (1,323) (19,683) (1,192) (16,154) - ------------------------------------------------------------------------------------------------------------ Net change 8,135 $121,220 13,278 $171,451 * For the period from the inception of Class R1, R2, R4 and R5 shares, April 1, 2005 through August 31, 2005. The fund is one of several mutual funds in which the MFS fund-of-funds may invest. The MFS fund-of-funds do not invest in the underlying MFS funds for the purpose of exercising management or control. At the end of the period, the MFS Aggressive Growth Allocation Fund, MFS Conservative Allocation Fund, MFS Growth Allocation Fund, MFS International Diversification Fund, and MFS Moderate Allocation Fund were the owners of record of approximately 3.83%, 1.44%, 12.73%, 7.16%, and 8.31% respectively, of the value of outstanding voting shares. (6) LINE OF CREDIT The fund and other affiliated funds participate in a $1 billion unsecured line of credit provided by a syndication of banks under a credit agreement. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its borrowings, at a rate equal to the Federal Reserve funds rate plus 0.35%. In addition, a commitment fee, based on the average daily, unused portion of the line of credit, is allocated among the participating funds at the end of each calendar quarter. The commitment fee allocated to the fund for the year ended August 31, 2005 was $11,876, and is included in miscellaneous expense. The fund had no significant borrowings during the year ended August 31, 2005. REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Trustees of MFS Series Trust I and Shareholders of MFS Research International Fund: We have audited the accompanying statement of assets and liabilities of MFS Research International Fund (the Fund) (one of the portfolios comprising MFS Series Trust I), including the portfolio of investments, as of August 31, 2005, and the related statement of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the periods indicated therein. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. We were not engaged to perform an audit of the Fund's internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of August 31, 2005, by correspondence with the custodian and brokers or by other appropriate auditing procedures where replies from brokers were not received. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of MFS Research International Fund at August 31, 2005, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and its financial highlights for each of the periods indicated therein, in conformity with U.S. generally accepted accounting principles. /s/ ERNST & YOUNG LLP Boston, Massachusetts October 11, 2005 RESULTS OF SHAREHOLDER MEETING (unaudited) - 8/31/05 At a special meeting of shareholders of MFS Series Trust I, which was held on March 23, 2005, the following action was taken: ITEM 1. To elect a Board of Trustees: NUMBER OF DOLLARS ------------------------------------------- NOMINEE AFFIRMATIVE WITHHOLD AUTHORITY Lawrence H. Cohn, M.D. $8,025,286,508.56 $117,939,292.78 - ----------------------------------------------------------------------------- David H. Gunning 8,030,402,677.64 112,823,123.70 - ----------------------------------------------------------------------------- William R. Gutow 8,027,523,726.27 115,702,075.07 - ----------------------------------------------------------------------------- Michael Hegarty 8,021,162,525.49 122,063,275.85 - ----------------------------------------------------------------------------- J. Atwood Ives 8,024,062,680.07 119,163,121.27 - ----------------------------------------------------------------------------- Amy B. Lane 8,019,792,882.59 123,432,918.75 - ----------------------------------------------------------------------------- Robert J. Manning 8,030,980,361.78 112,245,439.56 - ----------------------------------------------------------------------------- Lawrence T. Perera 8,025,935,401.12 117,290,400.22 - ----------------------------------------------------------------------------- Robert C. Pozen 8,031,655,470.25 111,570,331.09 - ----------------------------------------------------------------------------- J. Dale Sherratt 8,027,226,595.42 115,999,205.92 - ----------------------------------------------------------------------------- Laurie J. Thomsen 8,019,388,506.87 123,837,294.47 - ----------------------------------------------------------------------------- TRUSTEES AND OFFICERS -- IDENTIFICATION AND BACKGROUND The Trustees and officers of the Trust, as of October 1, 2005, are listed below, together with their principal occupations during the past five years. (Their titles may have varied during that period.) The address of each Trustee and officer is 500 Boylston Street, Boston, Massachusetts 02116. PRINCIPAL OCCUPATIONS DURING POSITION(s) HELD TRUSTEE/OFFICER THE PAST FIVE YEARS & NAME, DATE OF BIRTH WITH FUND SINCE(1) OTHER DIRECTORSHIPS(2) - ------------------- ---------------- --------------- ---------------------------- INTERESTED TRUSTEES Robert J. Manning(3) Trustee and February 2004 Massachusetts Financial Services (born 10/20/63) President Company, Chief Executive Officer, President, Chief Investment Officer and Director Robert C. Pozen(3) Trustee February 2004 Massachusetts Financial Services (born 08/08/46) Company, Chairman (since February 2004); Harvard Law School (education), John Olin Visiting Professor (since July 2002); Secretary of Economic Affairs, The Commonwealth of Massachusetts (January 2002 to December 2002); Fidelity Investments, Vice Chairman (June 2000 to December 2001); Fidelity Management & Research Company (investment adviser), President (March 1997 to July 2001); Bell Canada Enterprises (telecommunications), Director; Medtronic, Inc. (medical technology), Director; Telesat (satellite communications), Director INDEPENDENT TRUSTEES J. Atwood Ives Trustee and Chair February 1992 Private investor; Eastern (born 05/01/36) of Trustees Enterprises (diversified services company), Chairman, Trustee and Chief Executive Officer (until November 2000) Lawrence H. Cohn, M.D. Trustee August 1993 Brigham and Women's Hospital, (born 03/11/37) Chief of Cardiac Surgery; Harvard Medical School, Professor of Surgery David H. Gunning Trustee January 2004 Cleveland-Cliffs Inc. (mining (born 05/30/42) products and service provider), Vice Chairman/Director (since April 2001); Encinitos Ventures (private investment company), Principal (1997 to April 2001); Lincoln Electric Holdings, Inc. (welding equipment manufacturer), Director William R. Gutow Trustee December 1993 Private investor and real estate (born 09/27/41) consultant; Capitol Entertainment Management Company (video franchise), Vice Chairman Michael Hegarty Trustee December 2004 Retired; AXA Financial (financial (born 12/21/44) services and insurance), Vice Chairman and Chief Operating Officer (until May 2001); The Equitable Life Assurance Society (insurance), President and Chief Operating Officer (until May 2001) Amy B. Lane Trustee January 2004 Retired; Merrill Lynch & Co., (born 02/08/53) Inc., Managing Director, Investment Banking Group (1997 to February 2001); Borders Group, Inc. (book and music retailer), Director; Federal Realty Investment Trust (real estate investment trust), Trustee Lawrence T. Perera Trustee July 1981 Hemenway & Barnes (attorneys), (born 06/23/35) Partner J. Dale Sherratt Trustee August 1993 Insight Resources, Inc. (born 09/23/38) (acquisition planning specialists), President; Wellfleet Investments (investor in health care companies), Managing General Partner (since 1993); Cambridge Nutraceuticals (professional nutritional products), Chief Executive Officer (until May 2001) Laurie J. Thomsen Trustee March 2005 Private investor; Prism Venture (born 08/05/57) Partners (venture capital), Co- founder and General Partner (until June 2004); St. Paul Travelers Companies (commercial property liability insurance), Director OFFICERS Robert J. Manning(3) President and February 2004 Massachusetts Financial Services (born 10/20/63) Trustee Company, Chief Executive Officer, President, Chief Investment Officer and Director Tracy Atkinson(3) Treasurer September 2005 Massachusetts Financial Services (born 12/30/64) Company, Senior Vice President (since September 2004); PricewaterhouseCoopers LLP, Partner (prior to September 2004) Christopher R. Bohane(3) Assistant July 2005 Massachusetts Financial Services (born 1/18/74) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since April 2003); Kirkpatrick & Lockhart LLP (law firm), Associate (prior to April 2003); Nvest Services Company, Assistant Vice President and Associate Counsel (prior to January 2001) Jeffrey N. Carp(3) Secretary and September 2004 Massachusetts Financial Services (born 12/01/56) Clerk Company, Executive Vice President, General Counsel and Secretary (since April 2004); Hale and Dorr LLP (law firm), Partner (prior to April 2004) Ethan D. Corey(3) Assistant July 2005 Massachusetts Financial Services (born 11/21/63) Secretary and Company, Special Counsel (since Assistant Clerk December 2004); Dechert LLP (law firm), Counsel (prior to December 2004) Stephanie A. DeSisto(3) Assistant May 2003 Massachusetts Financial Services (born 10/01/53) Treasurer Company, Vice President (since April 2003); Brown Brothers Harriman & Co., Senior Vice President (November 2002 to April 2003); ING Groep N.V./Aeltus Investment Management, Senior Vice President (prior to November 2002) David L. DiLorenzo(3) Assistant July 2005 Massachusetts Financial Services (born 8/10/68) Treasurer Company, Vice President (since June 2005); JP Morgan Investor Services, Vice President (January 2001 to June 2005); State Street Bank, Vice President and Corporate Audit Manager (prior to January 2001) Timothy M. Fagan(3) Assistant September 2005 Massachusetts Financial Services (born 7/10/68) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since September 2005); John Hancock Advisers, LLC, Vice President and Chief Compliance Officer (September 2004 to August 2005), Senior Attorney (prior to September 2004); John Hancock Group of Funds, Vice President and Chief Compliance Officer (September 2004 to December 2004) Mark D. Fischer(3) Assistant July 2005 Massachusetts Financial Services (born 10/27/70) Treasurer Company, Vice President (since May 2005); JP Morgan Investment Management Company, Vice President (prior to May 2005) Brian T. Hourihan(3) Assistant September 2004 Massachusetts Financial Services (born 11/11/64) Secretary and Company, Vice President, Senior Assistant Clerk Counsel and Assistant Secretary (since June 2004); Affiliated Managers Group, Inc., Chief Legal Officer/Centralized Compliance Program (January to April 2004); Fidelity Research & Management Company, Assistant General Counsel (prior to January 2004) Ellen Moynihan(3) Assistant April 1997 Massachusetts Financial Services (born 11/13/57) Treasurer Company, Vice President Susan S. Newton(3) Assistant May 2005 Massachusetts Financial Services (born 03/07/50) Secretary and Company, Senior Vice President and Assistant Clerk Associate General Counsel (since April 2005); John Hancock Advisers, LLC, Senior Vice President, Secretary and Chief Legal Officer (prior to April 2005); John Hancock Group of Funds, Senior Vice President, Secretary and Chief Legal Officer (prior to April 2005) Susan A. Pereira(3) Assistant July 2005 Massachusetts Financial Services (born 11/05/70) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since June 2004); Bingham McCutchen LLP (law firm), Associate (January 2001 to June 2004); Preti, Flaherty, Beliveau, Pachios & Haley, LLC, Associate (prior to January 2001) Frank L. Tarantino Independent Chief June 2004 Tarantino LLC (provider of (born 03/07/44) Compliance compliance services), Principal Officer (since June 2004); CRA Business Strategies Group (consulting services), Executive Vice President (April 2003 to June 2004); David L. Babson & Co. (investment adviser), Managing Director, Chief Administrative Officer and Director (February 1997 to March 2003) James O. Yost(3) Assistant September 1990 Massachusetts Financial Services (born 06/12/60) Treasurer Company, Senior Vice President - ------------ (1) Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served continuously since appointment unless indicated otherwise. (2) Directorships or trusteeships of companies required to report to the Securities and Exchange Commission (i.e., "public companies"). (3) "Interested person" of the Trust within the meaning of the Investment Company Act of 1940 (referred to as the 1940 Act), which is the principal federal law governing investment companies like the fund, as a result of position with MFS. The address of MFS is 500 Boylston Street, Boston, Massachusetts 02116. Each Trustee has been elected by shareholders and each Trustee and officer holds office until his or her successor is chosen and qualified or until his or her earlier death, resignation, retirement or removal. Messrs. Ives and Sherratt and Mses. Lane and Thomsen are members of the Trust's Audit Committee. Each of the Trust's Trustees and officers holds comparable positions with certain other funds of which MFS or a subsidiary is the investment adviser or distributor, and, in the case of the officers, with certain affiliates of MFS. As of December 31, 2004, each Trustee served as a board member of 99 funds within the MFS Family of Funds. The Trust held a shareholders' meeting in 2005, and will hold a shareholders' meeting at least once every five years thereafter, to elect Trustees. The Statement of Additional Information contains further information about the Trustees and is available without charge upon request by calling 1-800-225-2606. - ------------------------------------------------------------------------------------------------------- INVESTMENT ADVISER CUSTODIAN Massachusetts Financial Services Company State Street Bank and Trust Company 500 Boylston Street, Boston, MA 225 Franklin Street, Boston, MA 02110 02116-3741 INDEPENDENT REGISTERED PUBLIC DISTRIBUTOR ACCOUNTING FIRM MFS Fund Distributors, Inc. Ernst & Young LLP 500 Boylston Street, Boston, MA 200 Clarendon Street, Boston, MA 02116 02116-3741 PORTFOLIO MANAGERS Jose Luis Garcia Thomas Melendez BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT The Investment Company Act of 1940 requires that both the full Board of Trustees and a majority of the non-interested ("independent") Trustees, voting separately, annually approve the continuation of the Fund's investment advisory agreement with MFS. The Trustees consider matters bearing on the Fund and its advisory arrangements at their meetings throughout the year, including a review of performance data at each regular meeting. In addition, the independent Trustees met several times over the course of three months beginning in May and ending in July, 2005 ("contract review meetings") for the specific purpose of considering whether to approve the continuation of the investment advisory agreement for the Fund and the other investment companies that the Board oversees (the "MFS Funds"). The independent Trustees were assisted in their evaluation of the Fund's investment advisory agreement by independent legal counsel, from whom they received separate legal advice and with whom they met separately from MFS during various contract review meetings. The independent Trustees were also assisted in this process by the MFS Funds' Independent Chief Compliance Officer, a full-time senior officer appointed by and reporting to the independent Trustees. In connection with their deliberations regarding the continuation of the investment advisory agreement, the Trustees, including the independent Trustees, considered such information and factors as they believed, in light of the legal advice furnished to them and their own business judgment, to be relevant. The investment advisory agreement for the Fund was considered separately, although the Trustees also took into account the common interests of all MFS Funds in their review. As described below, the Trustees considered the nature, quality, and extent of the various investment advisory, administrative, and shareholder services performed by MFS under the existing investment advisory agreement and other arrangements with the Fund. In connection with their contract review meetings, the Trustees received and relied upon materials which included, among other items: (i) information provided by Lipper Inc. on the investment performance of the Fund for various time periods ended December 31, 2004 and the investment performance of a group of funds with substantially similar investment classifications/objectives (the "Lipper performance universe"), as well as the investment performance of a group of funds identified by objective criteria suggested by MFS ("peer funds"), (ii) information provided by Lipper Inc. on the Fund's advisory fees and other expenses and the advisory fees and other expenses of comparable funds identified by Lipper (the "Lipper expense group"), as well as the advisory fees and other expenses of peer funds identified by objective criteria suggested by MFS, (iii) information provided by MFS on the advisory fees of comparable portfolios of other clients of MFS, including institutional separate account and other clients, (iv) information as to whether and to what extent applicable expense waivers, reimbursements or fee "breakpoints" are observed for the Fund, (v) information regarding MFS' financial results and financial condition, including MFS' and certain of its affiliates' estimated profitability from services performed for the Fund and the MFS Funds as a whole, (vi) MFS' views regarding the outlook for the mutual fund industry and the strategic business plans of MFS, (vii) descriptions of various functions performed by MFS for the Funds, such as compliance monitoring and portfolio trading practices, and (viii) information regarding the overall organization of MFS, including information about MFS' senior management and other personnel providing investment advisory, administrative and other services to the Fund and the other MFS Funds. The comparative performance, fee and expense information prepared and provided by Lipper Inc. was not independently verified and the independent Trustees did not independently verify any information provided to them by MFS. The Trustees' conclusion as to the continuation of the investment advisory agreement was based on a comprehensive consideration of all information provided to the Trustees and not the result of any single factor. Some of the factors that figured particularly in the Trustees' deliberations are described below, although individual Trustees may have evaluated the information presented differently from one another, giving different weights to various factors. It is also important to recognize that the fee arrangements for the Fund and other MFS Funds are the result of years of review and discussion between the independent Trustees and MFS, that certain aspects of such arrangements may receive greater scrutiny in some years than others, and that the Trustees' conclusions may be based, in part, on their consideration of these same arrangements during the course of the year and in prior years. Based on information provided by Lipper Inc. and MFS, the Trustees reviewed the Fund's total return investment performance as well as the performance of peer groups of funds over various time periods. The Trustees placed particular emphasis on the total return performance of the Fund's Class A shares in comparison to the performance of funds in its Lipper performance universe over the three-year period ended December 31, 2004, which the Trustees believed was a long enough period to reflect differing market conditions. The Fund's performance was in the 31st percentile relative to the other funds in the universe for this three-year period (the 1st percentile being the best performers and the 100th percentile being the worst performers). The total return performance of the Fund's Class A shares was in the 26th percentile for each of the one and five-year periods ended December 31, 2004 relative to the Lipper performance universe. Because of the passage of time, these performance results are likely to differ from the performance results for more recent periods, including those shown elsewhere in this report. In the course of their deliberations, the Trustees took into account information provided by MFS in connection with the contract review meetings, as well as during investment review meetings conducted with portfolio management personnel during the course of the year regarding the Fund's performance. After reviewing these and related factors, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that they were satisfied with MFS' responses and efforts relating to investment performance. In assessing the reasonableness of the Fund's advisory fee, the Trustees considered, among other information, the Fund's advisory fee and the total expense ratio of the Fund's Class A shares as a percentage of average net assets and the advisory fee and total expense ratios of peer groups of funds based on information provided by Lipper Inc. and MFS. The Trustees considered whether the Fund was subject to any fee waivers or reductions or expense limitations. The Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate and total expense ratio were each approximately at the Lipper expense group median. The Trustees also considered the advisory fees charged by MFS to institutional accounts. In comparing these fees, the Trustees considered information provided by MFS as to the generally broader scope of services provided by MFS to the Fund in comparison to institutional accounts, the higher demands placed on MFS' investment personnel and trading infrastructure as a result of the daily cash in-flows and out-flows of the Fund, and the impact on MFS and expenses associated with the more extensive regulatory regime to which the Fund is subject in comparison to institutional accounts. The Trustees also considered whether the Fund is likely to benefit from any economies of scale in the management of the Fund in the event of growth in assets of the Fund. They noted that the Fund's advisory fee rate schedule is currently subject to breakpoints that reduce the Fund's advisory fee rate on net assets over $1 billion and $2 billion. Taking into account fee waivers or reductions or expense limitations, if any, the Trustees concluded that the existing breakpoints were sufficient to allow the Fund to benefit from economies of scale as its assets grow. The Trustees also considered information prepared by MFS relating to MFS' costs and profits with respect to the Fund, the MFS Funds considered as a group, and other investment companies and accounts advised by MFS, as well as MFS' methodologies used to determine and allocate its costs to the MFS Funds, the Fund and other accounts and products for purposes of estimating profitability. After reviewing these and other factors described herein, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that the advisory fees charged to the Fund represent reasonable compensation in light of the nature and quality of the services being provided by MFS to the Fund. In addition, the Trustees considered MFS' resources and related efforts to continue to retain, attract and motivate capable personnel to serve the Fund. The Trustees also considered current and developing conditions in the financial services industry, including the entry into the industry of large and well-capitalized companies which are spending, and appear to be prepared to continue to spend, substantial sums to engage personnel and to provide services to competing investment companies. In this regard, the Trustees also considered the financial resources of MFS and its ultimate parent, Sun Life Financial Inc. The Trustees also considered the advantages and possible disadvantages to the Fund of having an adviser which also serves other investment companies as well as other accounts. The Trustees also considered the nature, quality, cost, and extent of administrative, transfer agency, and distribution services provided to the Fund by MFS and its affiliates under agreements and plans other than the investment advisory agreement, including any 12b-1 fees the Fund pays to MFS Fund Distributors, Inc., an affiliate of MFS. The Trustees also considered the nature, extent and quality of certain other services MFS performs or arranges for on the Fund's behalf, including securities lending programs, directed expense payment programs, class action recovery programs, and MFS' interaction with third-party service providers, principally custodians and sub-custodians. The Trustees concluded that the various non-advisory services provided by MFS and its affiliates on behalf of the Funds were satisfactory. The Trustees also considered benefits to MFS from the use of the Fund's portfolio brokerage commissions to pay for research and other similar services (including MFS' general policy to pay directly for third-party research), and various other factors. Additionally, the Trustees considered so-called "fall- out benefits" to MFS such as reputational value derived from serving as investment manager to the Fund. Based on their evaluation of factors that they deemed to be material, including those factors described above, the Board of Trustees, including a majority of the independent Trustees, concluded that the Fund's investment advisory agreement with MFS should be continued for an additional one-year period, commencing August 1, 2005. A discussion regarding the Board's most recent review and renewal of the Fund's investment advisory agreement will be available on or before December 1, 2005 by clicking on the fund's name under "Select a fund" on the MFS website (mfs.com). PROXY VOTING POLICIES AND INFORMATION A general description of the MFS funds' proxy voting policies and procedures is available without charge, upon request, by calling 1-800-225-2606, by visiting the Proxy Voting section of mfs.com or by visiting the SEC's Web site at http://www.sec.gov. Information regarding how the fund voted proxies relating to portfolio securities during the most recent twelve-month period ended June 30 is available without charge by visiting the Proxy Voting section of mfs.com or by visiting the SEC's Web site at http://www.sec.gov. QUARTERLY PORTFOLIO DISCLOSURE The fund will file a complete schedule of portfolio holdings with the Securities and Exchange Commission (the Commission) for the first and third quarters of each fiscal year on Form N-Q. The fund's Form N-Q may be reviewed and copied at the: Public Reference Room Securities and Exchange Commission Washington, D.C. 20549-0102 Information on the operation of the Public Reference Room may be obtained by calling the Commission at 1-800-SEC-0330. The fund's Form N-Q is available on the EDGAR database on the Commission's Internet website at http://www.sec.gov, and copies of this information may be obtained, upon payment of a duplicating fee, by electronic request at the following e-mail address: publicinfo@sec.gov or by writing the Public Reference Section at the above address. A shareholder can also obtain the quarterly portfolio holdings report at mfs.com. FEDERAL TAX INFORMATION (unaudited) In January 2006, shareholders will be mailed a Form 1099-DIV reporting the federal tax status of all distributions paid during the calendar year 2005. The fund has designated $75,439,840 as a capital gain dividend for the year ended August 31, 2005. For the year ended August 31, 2005, income from foreign sources was $33,981,511, and the fund designated a foreign tax credit of $3,987,788. CONTACT INFORMATION INVESTOR SERVICE Write to us at: MFS Service Center, Inc. P.O. Box 55824 Boston, MA 02205-5824 Type of Information Phone number Hours, Eastern Time - -------------------------------------------------------------------------------- General information 1-800-225-2606 8 a.m. to 8 p.m., any business day - -------------------------------------------------------------------------------- Speech- or hearing-impaired 1-800-637-6576 9 a.m. to 5 p.m., any business day - -------------------------------------------------------------------------------- Share prices, account 1-800-MFS-TALK balances exchanges (1-800-637-8255) 24 hours a day, 365 days a or stock and bond outlooks touch-tone required year - -------------------------------------------------------------------------------- M F S(SM) INVESTMENT MANAGEMENT(R) (C) 2005 MFS Investment Management(R) MFS(R) investment products are offered through MFS Fund Distributors, Inc., 500 Boylston Street, Boston, MA 02116. RIF-ANN-10/05 106M MFS(R) TECHNOLOGY FUND 8/31/05 ANNUAL REPORT - ------------------------------------------------------------------------------- LETTER FROM THE CEO 1 - --------------------------------------------------- PORTFOLIO COMPOSITION 2 - --------------------------------------------------- MANAGEMENT REVIEW 3 - --------------------------------------------------- PERFORMANCE SUMMARY 5 - --------------------------------------------------- EXPENSE TABLE 8 - --------------------------------------------------- PORTFOLIO OF INVESTMENTS 10 - --------------------------------------------------- FINANCIAL STATEMENTS 13 - --------------------------------------------------- NOTES TO FINANCIAL STATEMENTS 23 - --------------------------------------------------- REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 33 - --------------------------------------------------- RESULTS OF SHAREHOLDER MEETING 34 - --------------------------------------------------- TRUSTEES AND OFFICERS 35 - --------------------------------------------------- BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT 40 - --------------------------------------------------- PROXY VOTING POLICIES AND INFORMATION 44 - --------------------------------------------------- QUARTERLY PORTFOLIO DISCLOSURE 44 - --------------------------------------------------- FEDERAL TAX INFORMATION 44 - --------------------------------------------------- CONTACT INFORMATION BACK COVER - --------------------------------------------------- THIS REPORT HAS BEEN PREPARED FOR THE GENERAL INFORMATION TO SHAREHOLDERS. IT IS AUTHORIZED FOR DISTRIBUTION TO PROSPECTIVE INVESTORS ONLY WHEN PRECEDED OR ACCOMPANIED BY A CURRENT PROSPECTUS. M F S(SM) INVESTMENT MANAGEMENT(R) LETTER FROM THE CEO [Photo of Robert J. Manning] Dear Shareholders, Most investors are familiar with the basic principles of investing - focus on the long term and keep your assets diversified across different investment categories. Still, it is surprising how often we forget these basic lessons. Certainly, the dot-com euphoria that overtook Wall Street in the late 1990s had many people hoping they could become millionaires overnight. But the market decline that started in the spring of 2000 taught everyone how misguided those hopes had been. Now, less than five years after the market taught a harsh lesson in the follies of speculative investing, we are seeing a number of trends that suggest many investors, including professionals, are hoping for overnight miracles again. We see a steady stream of market "gurus" on television news shows, promising to teach amateur investors the strategies that will allow them to get rich quick. Hedge funds - which by their nature move in and out of investments rapidly - have soared in popularity over the past five years. We are reminded every day that we live in a "what have you done for me lately?" world, but this mindset should not influence how we invest and manage our money. In fact, investors often fall short of their goals because they trade in and out of investments too frequently and at inopportune times. Throughout our entire 80-year history, MFS' money management process has focused on long-term investment opportunities. We firmly believe that one of the best ways to realize long-term financial goals - be it a college education, a comfortable retirement, or a secure family legacy - is to follow a three-pronged approach that focuses on longer time horizons. Allocate holdings across the major asset classes - including stocks, bonds, and cash. Diversify within each class to take advantage of different market segments and investing styles. And rebalance assets regularly to maintain a desired asset allocation.* This long-term approach requires diligence and patience, two traits that in our experience are essential to capitalizing on the many opportunities the financial markets can offer. Respectfully, /s/ Robert J. Manning Robert J. Manning Chief Executive Officer and Chief Investment Officer MFS Investment Management(R) October 17, 2005 * Asset allocation, diversification, and rebalancing does not guarantee a profit or protect against a loss. The opinions expressed in this letter are those of MFS, and no forecasts can be guaranteed. PORTFOLIO COMPOSITION PORTFOLIO STRUCTURE Stocks 99.3% Cash & Other Net Assets 0.7% TOP TEN HOLDINGS Samsung Electronics Co. Ltd. 5.4% ------------------------------------------------ Dell, Inc. 5.2% ------------------------------------------------ Cisco Systems, Inc. 4.9% ------------------------------------------------ Symantec Corp. 4.1% ------------------------------------------------ MicroStrategy, Inc., "A" 4.0% ------------------------------------------------ Oracle Corp. 3.9% ------------------------------------------------ Nokia Corp. 3.9% ------------------------------------------------ QUALCOMM, Inc. 3.8% ------------------------------------------------ Amdocs Ltd. 3.7% ------------------------------------------------ LG Philips LCD Co. Ltd. 3.6% ------------------------------------------------ TOP FIVE EQUITY INDUSTRIES Computer Software 22.9% ------------------------------------------------ Electronics 19.8% ------------------------------------------------ Network & Telecom 14.3% ------------------------------------------------ Computer Systems 11.4% ------------------------------------------------ PC & Peripherals 6.9% ------------------------------------------------ Percentages are based on net assets as of 8/31/05. The portfolio is actively managed, and current holdings may be different. MANAGEMENT REVIEW SUMMARY OF RESULTS For the twelve months ended August 31, 2005, Class A shares of the MFS Technology Fund had a total return of 14.81%, at net asset value. In comparison, the fund's benchmark, the Goldman Sachs Technology Industry Composite Index, returned 16.48%. DETRACTORS FROM PERFORMANCE PC and peripherals, electronics, and leisure and toys were the greatest detracting industries from relative performance during the reporting period. Stock selection and our overweighted position in the weak-performing PC and peripherals industry hindered results. Within this industry, our positioning in Internet storage company Network Appliance was a drag on relative performance. For the electronics industry, security selection hurt returns with semiconductor company Integrated Circuit Systems* among the fund's top detractors. Our positioning in the leisure and toys industry also held back performance. Within leisure and toys, our holdings in Electronic Arts detracted from results. Elsewhere, our positioning in computer company Hewlett-Packard*, business to business and e-commerce software vendor Ariba, telecommunication equipment maker Motorola*, software firm Mercury Interactive, network computing company Sun Microsystems*, and human resources service provider Hewitt Associates* dampened relative results. Not owning benchmark constituent Corning also held back performance as the stock outperformed the benchmark over the period. CONTRIBUTORS TO PERFORMANCE During the reporting period, stock selection in the computer systems, Internet, and computer software industries significantly boosted relative performance. The computer systems industry led performance as our positioning in IBM* and Apple Computer significantly aided relative results. In the Internet industry, online search provider Google, which had a dramatic run-up in share price, was the fund's greatest individual contributor to relative performance. The fund also benefited from strong returns in several of its computer software holdings including business software firm MicroStrategy and network security company Blue Coat Systems*, neither of which are benchmark constituents. In other industries, networking chip company Marvell Technology*, flash memory storage products maker SanDisk, interactive media and marketing company Digitas*, and Internet products and services firm F5 Networks* had significant positive impacts on relative performance. *Security was not held in the portfolio at period-end. Respectfully, Telis D. Bertsekas Portfolio Manager Note to Shareholders: Telis Bertsekas became the Portfolio Manager of the fund in March 2005. He replaced Daniel Scherman. The views expressed in this report are those of the portfolio manager only through the end of the period of the report as stated on the cover and do not necessarily reflect the views of MFS or any other person in the MFS organization. These views are subject to change at any time based on market and other conditions, and MFS disclaims any responsibility to update such views. These views may not be relied upon as investment advice or an indication of trading intent on behalf of any MFS Fund. References to specific securities are not recommendations of such securities, and may not be representative of any MFS Fund's current or future investments. PERFORMANCE SUMMARY THROUGH 8/31/05 The following chart illustrates the historical performance of the fund's original share class in comparison to its benchmark. Performance results include the deduction of the maximum applicable sales charge and reflect the percentage change in net asset value, including reinvestment of dividends and capital gains distributions. Benchmark comparisons are unmanaged and do not reflect any fees or expenses. The performance of other share classes will be greater than or less than the line shown. (See Notes to Performance Summary.) VISIT MFS.COM FOR THE MOST RECENT MONTH-END PERFORMANCE RESULTS. (FOR THE MOST RECENT MONTH-END PERFORMANCE FOR CLASS I SHARES CALL 1-888-808-6374.) MARKET VOLATILITY CAN SIGNIFICANTLY AFFECT SHORT-TERM PERFORMANCE, AND CURRENT PERFORMANCE MAY BE LOWER OR HIGHER THAN THE PERFORMANCE DATA QUOTED. THE PERFORMANCE DATA QUOTED REPRESENTS PAST PERFORMANCE, WHICH IS NO GUARANTEE OF FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE WILL FLUCTUATE, AND SHARES, WHEN REDEEMED, MAY BE WORTH MORE OR LESS THAN THEIR ORIGINAL COST. HIGH SHORT-TERM RETURNS FOR ANY PERIOD MAY BE AND LIKELY WERE ATTRIBUTABLE TO FAVORABLE MARKET CONDITIONS DURING THAT PERIOD, WHICH MAY NOT BE REPEATABLE. THE PERFORMANCE SHOWN DOES NOT REFLECT THE DEDUCTION OF TAXES, IF ANY, THAT A SHAREHOLDER WOULD PAY ON FUND DISTRIBUTIONS OR THE REDEMPTION OF FUND SHARES. GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT (For the period from the commencement of the fund's investment operations, January 2, 1997, through August 31, 2005. Index information is from January 1, 1997.) Goldman Sachs MFS Technology Technology Industry Fund -- Class A Composite Index 1/97 $ 9,425 $10,000 8/97 11,810 13,559 8/98 11,738 13,114 8/99 19,397 27,523 8/00 36,453 44,919 8/01 14,211 16,464 8/02 8,309 10,420 8/03 11,034 14,421 8/04 10,236 13,989 8/05 11,752 16,293 TOTAL RATES OF RETURN THROUGH 8/31/05 AVERAGE ANNUAL WITHOUT SALES CHARGE Share class Class inception date 1-yr 5-yr Life* - ------------------------------------------------------------------------------ A 1/02/97 14.81% -20.26% 2.58% - ------------------------------------------------------------------------------ B 4/14/00 14.00% -20.78% 2.16% - ------------------------------------------------------------------------------ C 4/14/00 14.17% -20.79% 2.15% - ------------------------------------------------------------------------------ I 1/02/97 15.16% -19.92% 2.86% - ------------------------------------------------------------------------------ R** 12/31/02 14.73% -20.33% 2.53% - ------------------------------------------------------------------------------ R1 4/01/05 14.50% -20.30% 2.55% - ------------------------------------------------------------------------------ R2 4/01/05 14.64% -20.28% 2.56% - ------------------------------------------------------------------------------ R3** 10/31/03 14.36% -20.37% 2.50% - ------------------------------------------------------------------------------ R4 4/01/05 14.94% -20.24% 2.59% - ------------------------------------------------------------------------------ R5 4/01/05 15.06% -20.22% 2.61% - ------------------------------------------------------------------------------ AVERAGE ANNUAL Comparative benchmarks - ------------------------------------------------------------------------------ Average science and technology fund+ 20.65% -19.35% 5.68% - ------------------------------------------------------------------------------ Goldman Sachs Technology Industry Composite Index# 16.48% -18.36% 5.79% - ------------------------------------------------------------------------------ AVERAGE ANNUAL WITH SALES CHARGE Share class - ------------------------------------------------------------------------------ A 8.20% -21.20% 1.88% - ------------------------------------------------------------------------------ B 10.00% -21.09% 2.16% - ------------------------------------------------------------------------------ C 13.17% -20.79% 2.15% - ------------------------------------------------------------------------------ Class I, R, R1, R2, R3, R4, and R5 shares do not have a sales charge. Please see Notes to Performance Summary for more details. * For the period from the commencement of the fund's investment operations, January 2, 1997, through August 31, 2005. Index information is from January 1, 1997. ** Effective April 1, 2005, Class R1 shares have been renamed "Class R shares" and Class R2 shares have been renamed "Class R3 shares." + Source: Lipper Inc., an independent firm that reports mutual fund performance. # Source: Bloomberg L.P. INDEX DEFINITION Goldman Sachs Technology Industry Composite Index - is a modified capitalization-weighted index of selected technology stocks. It is not possible to invest directly in an index. NOTES TO PERFORMANCE SUMMARY Class A results including sales charge reflect the deduction of the maximum 5.75% sales charge. Class B results including sales charge reflect the deduction of the applicable contingent deferred sales charge (CDSC), which declines over six years from 4% to 0%. Class C results including sales charge (assuming redemption within one year from the end of the prior month of purchase) reflect the deduction of the 1% CDSC. Class R shares have no initial sales charge or CDSC and are available only to existing Class R shareholders. Class I, R1, R2, R3, R4, and R5 shares have no initial sales charge or CDSC. Class I shares are only available to certain eligible investors, and Class R1, R2, R3, R4, and R5 shares are only available to certain retirement plans. Performance for share classes offered after Class A shares includes the performance of the fund's Class A shares for periods prior to their offering. This blended class performance has been adjusted to take into account differences in sales loads, if any, applicable to these share classes, but has not been adjusted to take into account differences in class specific operating expenses (such as Rule 12b-1 fees). Compared to performance these share classes would have experienced had they been offered for the entire period, the use of blended performance generally results in higher performance for share classes with higher operating expenses than the share class to which it is blended, and lower performance for share classes with lower operating expenses than the share class to which it is blended. Performance results reflect any applicable expense subsidies and waivers in effect during the periods shown. Without such subsidies and waivers the fund's performance results would be less favorable. Please see the prospectus and financial statements for complete details. The performance shown reflects a non-recurring accrual made to the fund on July 28, 2004, relating to MFS' revenue sharing settlement with the Securities and Exchange Commission, without which the performance would have been lower. The proceeds were paid to the fund on February 16, 2005. From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. EXPENSE TABLE FUND EXPENSES BORNE BY THE SHAREHOLDERS DURING THE PERIOD, MARCH 1, 2005 THROUGH AUGUST 31, 2005. As a shareholder of the fund, you incur two types of costs: (1) transaction costs, including sales charges (loads) on certain purchase or redemption payments and redemption fees on certain exchanges and redemptions, and (2) ongoing costs, including management fees; distribution and service (12b-1) fees; and other fund expenses. This example is intended to help you understand your ongoing costs (in dollars) of investing in the fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 invested at the beginning of the period and held for the entire period March 1, 2005 through August 31, 2005. ACTUAL EXPENSES The first line for each share class in the table below provides information about actual account values and actual expenses. You may use the information in this line, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading entitled "Expenses Paid During Period" to estimate the expenses you paid on your account during this period. HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES The second line for each share class in the table below provides information about hypothetical account values and hypothetical expenses based on the fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as sales charges (loads) or redemption fees. Therefore, the second line for each share class in the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher. - ------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period** Expense Account Value Account Value 3/01/05- Share Class Ratio 3/01/05 8/31/05 8/31/05 - -------------------------------------------------------------------------------- Actual 1.50% $1,000.00 $1,025.50 $7.66 A --------------------------------------------------------------------- Hypothetical* 1.50% $1,000.00 $1,017.64 $7.63 - -------------------------------------------------------------------------------- Actual 2.15% $1,000.00 $1,022.70 $10.96 B ---------------------------------------------------------------------- Hypothetical* 2.15% $1,000.00 $1,014.37 $10.92 - -------------------------------------------------------------------------------- Actual 2.15% $1,000.00 $1,022.80 $10.96 C --------------------------------------------------------------------- Hypothetical* 2.15% $1,000.00 $1,014.37 $10.92 - -------------------------------------------------------------------------------- Actual 1.17% $1,000.00 $1,028.40 $5.98 I --------------------------------------------------------------------- Hypothetical* 1.17% $1,000.00 $1,019.31 $5.96 - -------------------------------------------------------------------------------- R Actual 1.65% $1,000.00 $1,026.80 $8.43 (formerly --------------------------------------------------------------------- R1) Hypothetical* 1.65% $1,000.00 $1,016.89 $8.39 - -------------------------------------------------------------------------------- Actual 2.34% $1,000.00 $1,022.80 $11.93 R1 --------------------------------------------------------------------- Hypothetical* 2.34% $1,000.00 $1,013.41 $11.88 - -------------------------------------------------------------------------------- Actual 2.04% $1,000.00 $1,024.00 $10.41 R2 --------------------------------------------------------------------- Hypothetical* 2.04% $1,000.00 $1,014.92 $10.36 - -------------------------------------------------------------------------------- R3 Actual 1.90% $1,000.00 $1,024.60 $9.70 (formerly --------------------------------------------------------------------- R2) Hypothetical* 1.90% $1,000.00 $1,015.63 $9.65 - -------------------------------------------------------------------------------- Actual 1.54% $1,000.00 $1,026.70 $7.87 R4 --------------------------------------------------------------------- Hypothetical* 1.54% $1,000.00 $1,017.44 $7.83 - -------------------------------------------------------------------------------- Actual 1.24% $1,000.00 $1,027.80 $6.34 R5 --------------------------------------------------------------------- Hypothetical* 1.24% $1,000.00 $1,018.95 $6.31 - -------------------------------------------------------------------------------- * 5% class return per year before expenses. ** Expenses paid is equal to each class' annualized expense ratio, as shown above, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year. Expenses paid do not include any applicable sales charges (loads) or redemption fees. If these transaction costs had been included, your costs would have been higher. PORTFOLIO OF INVESTMENTS - 8/31/05 The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Stocks - 99.3% - --------------------------------------------------------------------------------------------------- ISSUER SHARES $ VALUE - --------------------------------------------------------------------------------------------------- Broadcast & Cable TV - 2.6% - --------------------------------------------------------------------------------------------------- XM Satellite Radio Holdings, Inc., "A"^* 81,670 $ 2,878,868 - --------------------------------------------------------------------------------------------------- Business Services - 7.6% - --------------------------------------------------------------------------------------------------- Amdocs Ltd.* 141,630 $ 4,156,841 Getty Images, Inc.^* 23,250 1,989,967 Infosys Technologies Ltd., ADR 33,030 2,338,194 -------------- $ 8,485,002 - --------------------------------------------------------------------------------------------------- Computer Software - 22.9% - --------------------------------------------------------------------------------------------------- Adobe Systems, Inc. 81,550 $ 2,205,112 Compuware Corp.* 208,590 1,889,825 Mercury Interactive Corp.* 46,350 1,699,654 MicroStrategy, Inc., "A"^* 57,270 4,409,790 Opsware, Inc.^* 632,230 2,920,903 Oracle Corp.* 333,618 4,327,025 Symantec Corp.* 216,801 4,548,485 TIBCO Software, Inc.^* 451,260 3,447,626 -------------- $ 25,448,420 - --------------------------------------------------------------------------------------------------- Computer Software - Systems - 11.4% - --------------------------------------------------------------------------------------------------- Apple Computer, Inc.* 63,190 $ 2,965,507 Dell, Inc.* 162,423 5,782,259 LG Philips LCD Co. Ltd.* 87,740 3,983,400 -------------- $ 12,731,166 - --------------------------------------------------------------------------------------------------- Electronics - 19.8% - --------------------------------------------------------------------------------------------------- AU Optronics Corp., ADR 151,735 $ 2,244,161 Chartered Semiconductor Manufacturing Ltd., ADR^* 167,540 1,114,141 KLA-Tencor Corp. 55,750 2,829,870 Novellus Systems, Inc.* 46,240 1,239,694 PMC-Sierra, Inc.* 167,980 1,424,470 Samsung Electronics Co. Ltd., GDR## 22,955 6,019,949 SanDisk Corp.^* 81,070 3,147,948 Taiwan Semiconductor Manufacturing Co. Ltd., ADR 217,074 1,786,519 Texas Instruments, Inc. 67,660 2,211,129 -------------- $ 22,017,881 - --------------------------------------------------------------------------------------------------- Energy - Independent - 0.6% - --------------------------------------------------------------------------------------------------- Evergreen Solar, Inc.^* 103,110 $ 726,925 - --------------------------------------------------------------------------------------------------- Internet - 6.4% - --------------------------------------------------------------------------------------------------- Amazon.com, Inc.* 39,060 $ 1,667,862 Ariba, Inc.^* 259,480 1,541,311 Google, Inc., "A"* 13,690 3,915,340 -------------- $ 7,124,513 - --------------------------------------------------------------------------------------------------- Leisure & Toys - 1.1% - --------------------------------------------------------------------------------------------------- Electronic Arts, Inc.* 20,590 $ 1,179,395 - --------------------------------------------------------------------------------------------------- Machinery & Tools - 1.2% - --------------------------------------------------------------------------------------------------- Cognex Corp.^ 45,740 $ 1,360,765 - --------------------------------------------------------------------------------------------------- Network & Telecom - 14.3% - --------------------------------------------------------------------------------------------------- Cisco Systems, Inc.* 307,833 $ 5,424,017 Juniper Networks, Inc.* 85,010 1,933,127 Nokia Corp., ADR 272,580 4,298,587 QUALCOMM, Inc. 107,850 4,282,724 -------------- $ 15,938,455 - --------------------------------------------------------------------------------------------------- Personal Computers & Peripherals - 6.9% - --------------------------------------------------------------------------------------------------- EMC Corp.* 272,340 $ 3,502,292 Hon Hai Precision Industry Co. Ltd. 258,000 1,334,694 Network Appliance, Inc.* 118,490 2,812,953 -------------- $ 7,649,939 - --------------------------------------------------------------------------------------------------- Specialty Stores - 3.6% - --------------------------------------------------------------------------------------------------- Circuit City Stores, Inc. 234,330 $ 3,957,834 - --------------------------------------------------------------------------------------------------- Telephone Services - 0.9% - --------------------------------------------------------------------------------------------------- Sprint Nextel Corp. 37,100 $ 962,003 - --------------------------------------------------------------------------------------------------- Total Stocks (Identified Cost, $107,192,871) $ 110,461,166 - --------------------------------------------------------------------------------------------------- Short-Term Obligation - 0.9% - --------------------------------------------------------------------------------------------------- ISSUER PAR AMOUNT $ VALUE - --------------------------------------------------------------------------------------------------- General Electric Capital Corp., 3.58%, due 9/01/05, at Amortized Cost< $ 970,000 $ 970,000 - --------------------------------------------------------------------------------------------------- Portfolio of Investments - continued Collateral for Securities Loaned - 8.9% - --------------------------------------------------------------------------------------------------- ISSUER SHARES $ VALUE - --------------------------------------------------------------------------------------------------- Navigator Securities Lending Prime Portfolio, at Cost and Net Asset Value 9,924,816 $ 9,924,816 - --------------------------------------------------------------------------------------------------- Total Investments (Identified Cost, $118,087,687)(S) $ 121,355,982 - --------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - (9.1)% (10,117,247) - --------------------------------------------------------------------------------------------------- Net Assets - 100.0% $ 111,238,735 - --------------------------------------------------------------------------------------------------- * Non-income producing security. ^ All or a portion of this security is on loan. (S) As of August 31, 2005, the fund had two securities representing $5,318,094 and 4.8% of net assets that were fair valued in accordance with the policies adopted by the Board of Trustees. ## SEC Rule 144A restriction. < The rate shown represents an annualized yield at time of purchase. Abbreviations: ADR = American Depository Receipt GDR = Global Depository Receipt SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statement of Assets and Liabilities This statement represents your fund's balance sheet, which details the assets and liabilities composing the total value of the fund. AT 8/31/05 ASSETS - ------------------------------------------------------------------------------------------------------- Investments, at value, including $9,625,384 of securities on loan (identified cost, $118,087,687) $121,355,982 Cash 3,014 Foreign currency, at value (identified cost, $356,630) 340,678 Receivable for fund shares sold 74,948 Receivable from investment adviser 18,142 Interest and dividends receivable 42,227 Other assets 16 - ------------------------------------------------------------------------------------------------------- Total assets $121,835,007 - ------------------------------------------------------------------------------------------------------- LIABILITIES - ------------------------------------------------------------------------------------------------------- Payable for investments purchased $197,868 Payable for fund shares reacquired 234,976 Collateral for securities loaned, at value 9,924,816 Payable to affiliates Management fee 2,274 Shareholder servicing costs 86,768 Distribution and service fees 2,528 Administrative services fee 63 Retirement plan administration and services fees 3 Accrued expenses and other liabilities 146,976 - ------------------------------------------------------------------------------------------------------- Total liabilities $10,596,272 - ------------------------------------------------------------------------------------------------------- Net assets $111,238,735 - ------------------------------------------------------------------------------------------------------- NET ASSETS CONSIST OF: - ------------------------------------------------------------------------------------------------------- Paid-in capital $450,135,559 Unrealized appreciation (depreciation) on investments and translation of assets and liabilities in foreign currencies 3,252,344 Accumulated net realized gain (loss) on investments and foreign currency transactions (342,149,168) - ------------------------------------------------------------------------------------------------------- Net assets $111,238,735 - ------------------------------------------------------------------------------------------------------- Shares of beneficial interest outstanding 12,789,215 - ------------------------------------------------------------------------------------------------------- Class A shares - ------------------------------------------------------------------------------------------------------- Net assets $48,944,507 Shares outstanding 5,534,196 - ------------------------------------------------------------------------------------------------------- Net asset value per share $8.84 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25X$8.84) $9.38 - ------------------------------------------------------------------------------------------------------- Class B shares - ------------------------------------------------------------------------------------------------------- Net assets $43,764,851 Shares outstanding 5,116,249 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $8.55 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class C shares - ------------------------------------------------------------------------------------------------------- Net assets $12,413,506 Shares outstanding 1,453,472 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $8.54 - ------------------------------------------------------------------------------------------------------- Class I shares - ------------------------------------------------------------------------------------------------------- Net assets $3,384,228 Shares outstanding 374,226 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $9.04 - ------------------------------------------------------------------------------------------------------- Class R shares (formerly Class R1) - ------------------------------------------------------------------------------------------------------- Net assets $2,283,049 Shares outstanding 259,581 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $8.80 - ------------------------------------------------------------------------------------------------------- Class R1 shares - ------------------------------------------------------------------------------------------------------- Net assets $64,139 Shares outstanding 7,502 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $8.55 - ------------------------------------------------------------------------------------------------------- Class R2 shares - ------------------------------------------------------------------------------------------------------- Net assets $85,454 Shares outstanding 9,983 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $8.56 - ------------------------------------------------------------------------------------------------------- Class R3 shares (formerly Class R2) - ------------------------------------------------------------------------------------------------------- Net assets $191,832 Shares outstanding 21,900 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $8.76 - ------------------------------------------------------------------------------------------------------- Class R4 shares - ------------------------------------------------------------------------------------------------------- Net assets $53,551 Shares outstanding 6,053 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $8.85 - ------------------------------------------------------------------------------------------------------- Class R5 shares - ------------------------------------------------------------------------------------------------------- Net assets $53,618 Shares outstanding 6,053 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $8.86 - ------------------------------------------------------------------------------------------------------- On sales of $50,000 or more, the offering price of Class A shares is reduced. A contingent deferred sales charge may be imposed on redemptions of Class A, Class B and Class C shares. SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statement of Operations This statement describes how much your fund received in investment income and paid in expenses. It also describes any gains and/or losses generated by fund operations. YEAR ENDED 8/31/05 NET INVESTMENT LOSS: - ---------------------------------------------------------------------------------------------------------------- Income Dividends $1,317,421 Interest 61,579 Foreign taxes withheld (35,939) - ---------------------------------------------------------------------------------------------------------------- Total investment income $1,343,061 - ---------------------------------------------------------------------------------------------------------------- Expenses Management fee $1,078,068 Distribution and service fees 897,977 Shareholder servicing costs 610,448 Administrative services fee 15,129 Retirement plan administration and services fees 680 Trustees' compensation 12,373 Custodian fee 61,352 Printing 60,338 Postage 15,480 Auditing fees 43,630 Legal fees 4,447 Shareholder solicitation expenses 34,339 Registration fees 99,791 Miscellaneous 28,644 - ------------------------------------------------------------------------------------------------------ Total expenses $2,962,696 - ------------------------------------------------------------------------------------------------------ Fees paid indirectly (21,686) Reduction of expenses by investment adviser (410,318) - ------------------------------------------------------------------------------------------------------ Net expenses $2,530,692 - ------------------------------------------------------------------------------------------------------ Net investment loss $(1,187,631) - ------------------------------------------------------------------------------------------------------ REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS - ------------------------------------------------------------------------------------------------------ Realized gain (loss) (identified cost basis) - ------------------------------------------------------------------------------------------------------ Investment transactions $26,403,744 - ------------------------------------------------------------------------------------------------------ Written options transactions (55,971) - ------------------------------------------------------------------------------------------------------ Foreign currency transactions (33,833) - ------------------------------------------------------------------------------------------------------ Net realized gain (loss) on investments and foreign currency transactions $26,313,940 - ------------------------------------------------------------------------------------------------------ Change in unrealized appreciation (depreciation) - ------------------------------------------------------------------------------------------------------ Investments $(3,569,581) - ------------------------------------------------------------------------------------------------------ Translation of assets and liabilities in foreign currencies (15,974) - ------------------------------------------------------------------------------------------------------ Net unrealized gain (loss) on investments and foreign currency translation $(3,585,555) - ------------------------------------------------------------------------------------------------------ Net realized and unrealized gain (loss) on investments and foreign currency $22,728,385 - ------------------------------------------------------------------------------------------------------ Change in net assets from operations $21,540,754 - ------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statements of Changes in Net Assets This statement describes the increases and/or decreases in net assets resulting from operations and any shareholder transactions. FOR YEARS ENDED 8/31 2005 2004 CHANGE IN NET ASSETS - ------------------------------------------------------------------------------------------------------- FROM OPERATIONS - ------------------------------------------------------------------------------------------------------- Net investment loss $(1,187,631) $(2,724,957) Net realized gain (loss) on investments and foreign currency transactions 26,313,940 13,664,197 Net unrealized gain (loss) on investments and foreign currency translation (3,585,555) (23,010,134) - ------------------------------------------------------------------------------------------------------- Change in net assets from operations $21,540,754 $(12,070,894) - ------------------------------------------------------------------------------------------------------- Change in net assets from fund share transactions $(67,156,944) $(18,052,412) - ------------------------------------------------------------------------------------------------------- Redemption fees $4,244 $44 - ------------------------------------------------------------------------------------------------------- Total change in net assets $(45,611,946) $(30,123,262) - ------------------------------------------------------------------------------------------------------- NET ASSETS - ------------------------------------------------------------------------------------------------------- At beginning of period $156,850,681 $186,973,943 At end of period $111,238,735 $156,850,681 - ------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Financial Highlights The financial highlights table is intended to help you understand the fund's financial performance for the past 5 years (or, if shorter, the period of the fund's operation). Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund (assuming reinvestment of all distributions) held for the entire period. This information has been audited by the fund's independent registered public accounting firm, whose report, together with the fund's financial statements, are included in this report. CLASS A YEARS ENDED 8/31 ---------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $7.70 $8.30 $6.25 $10.70 $28.03 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.05) $(0.10) $(0.07) $(0.11) $(0.14) Net realized and unrealized gain (loss) on investments and foreign currency 1.19 (0.50) 2.12 (4.34) (16.69) - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $1.14 $(0.60) $2.05 $(4.45) $(16.83) - ---------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $-- $-- $-- $-- (0.50) From paid-in capital -- -- -- -- (0.00)+++ - ---------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $-- $-- $-- $-- $(0.50) - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $8.84 $7.70 $8.30 $6.25 $10.70 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)&*** 14.81 (7.23)+ 32.80 (41.53) (61.02) - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.79 1.60 1.76 1.74 1.55 Expenses after expense reductions## 1.51 1.50 1.52 1.51 1.52 Net investment loss (0.56) (1.10) (1.05) (1.22) (0.87) Portfolio turnover (%) 163 141 162 210 413 Net assets at end of period (000 Omitted) $48,945 $75,786 $101,059 $53,142 $66,358 - ---------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS B YEARS ENDED 8/31 ------------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $7.50 $8.13 $6.16 $10.61 $27.95 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.10) $(0.15) $(0.11) $(0.17) $(0.25) Net realized and unrealized gain (loss) on investments and foreign currency 1.15 (0.48) 2.08 (4.28) (16.64) - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $1.05 $(0.63) $1.97 $(4.45) $(16.89) - ---------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $-- $-- $-- $-- $(0.45) From paid-in capital -- -- -- -- (0.00)+++ - ---------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $-- $-- $-- $-- $(0.45) - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $8.55 $7.50 $8.13 $6.16 $10.61 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)&*** 14.00 (7.75)+ 31.98 (41.94) (61.28) - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.44 2.25 2.42 2.39 2.20 Expenses after expense reductions## 2.16 2.15 2.18 2.16 2.17 Net investment loss (1.24) (1.74) (1.71) (1.87) (1.52) Portfolio turnover (%) 163 141 162 210 413 Net assets at end of period (000 Omitted) $43,765 $50,896 $61,353 $25,997 $44,369 - ---------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS C YEARS ENDED 8/31 ---------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $7.48 $8.12 $6.16 $10.61 $27.95 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.10) $(0.15) $(0.11) $(0.17) $(0.25) Net realized and unrealized gain (loss) on investments and foreign currency 1.16 (0.49) 2.07 (4.28) (16.64) - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $1.06 $(0.64) $1.96 $(4.45) $(16.89) - ----------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $-- $-- $-- $-- $(0.45) From paid-in capital -- -- -- -- (0.00)+++ - ----------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $-- $-- $-- $-- $(0.45) - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $8.54 $7.48 $8.12 $6.16 $10.61 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)&*** 14.17 (7.88)+ 31.82 (41.94) (61.27) - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.44 2.25 2.42 2.39 2.20 Expenses after expense reductions## 2.16 2.15 2.18 2.16 2.17 Net investment loss (1.22) (1.74) (1.71) (1.87) (1.52) Portfolio turnover (%) 163 141 162 210 413 Net assets at end of period (000 Omitted) $12,414 $15,367 $20,210 $10,476 $17,298 - ----------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS I YEARS ENDED 8/31 -------------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $7.85 $8.43 $6.33 $10.79 $28.08 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment income (loss) $0.01 $(0.06) $(0.05) $(0.08) $(0.09) Net realized and unrealized gain (loss) on investments and foreign currency 1.18 (0.52) 2.15 (4.38) (16.68) - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $1.19 $(0.58) $2.10 $(4.46) $(16.77) - ---------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $-- $-- $-- $-- $(0.52) From paid-in capital -- -- -- -- (0.00)+++ - ---------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $-- $-- $-- $-- $(0.52) - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $9.04 $7.85 $8.43 $6.33 $10.79 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)&*** 15.16 (6.88)+ 33.18 (41.33) (60.69) - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.44 1.26 1.41 1.39 1.20 Expenses after expense reductions## 1.16 1.16 1.17 1.16 1.17 Net investment income (loss) 0.17 (0.70) (0.71) (0.87) (0.53) Portfolio turnover (%) 163 141 162 210 413 Net assets at end of period (000 Omitted) $3,384 $13,404 $4,179 $3,045 $5,357 - ---------------------------------------------------------------------------------------------------------------------------- CLASS R (FORMERLY CLASS R1) YEARS ENDED 8/31 ------------------------------ PERIOD ENDED 2005= 2004= 8/31/03** Net asset value, beginning of period $7.67 $8.28 $6.16### - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment loss $(0.07) $(0.10) $(0.08) Net realized and unrealized gain (loss) on investments and foreign currency 1.20 (0.51) 2.20 - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $1.13 $(0.61) $2.12 - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $8.80 $7.67 $8.28 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)&*** 14.73 (7.37)+ 34.42###++ - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.94 1.76 1.88+ Expenses after expense reductions## 1.66 1.66 1.64+ Net investment loss (0.79) (1.21) (1.22)+ Portfolio turnover (%) 163 141 162 Net assets at end of period (000 Omitted) $2,283 $1,266 $173 - ---------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R1 CLASS R2 PERIOD ENDED PERIOD ENDED 8/31/05**= 8/31/05**= Net asset value, beginning of period $8.01 $8.01 - -------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - -------------------------------------------------------------------------------------------------------- Net investment loss $(0.07) $(0.05) Net realized and unrealized gain (loss) on investments and foreign currency 0.61^ 0.60^ - -------------------------------------------------------------------------------------------------------- Total from investment operations $0.54 $0.55 - -------------------------------------------------------------------------------------------------------- Net asset value, end of period $8.55 $8.56 - -------------------------------------------------------------------------------------------------------- Total return (%)&*** 6.74++ 6.87++ - -------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.62+ 2.32+ Expenses after expense reductions## 2.34+ 2.04+ Net investment loss (1.90)+ (1.60)+ Portfolio turnover (%) 163 163 Net assets at end of period (000 Omitted) $64 $85 - -------------------------------------------------------------------------------------------------------- CLASS R3 (FORMERLY CLASS R2) YEAR ENDED PERIOD ENDED 8/31/05= 8/31/04**= Net asset value, beginning of period $7.66 $8.79### - -------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - -------------------------------------------------------------------------------------------------------- Net investment loss $(0.09) $(0.09) Net realized and unrealized gain (loss) on investments and foreign currency 1.19 (1.04) - -------------------------------------------------------------------------------------------------------- Total from investment operations $1.10 $(1.13) - -------------------------------------------------------------------------------------------------------- Net asset value, end of period $8.76 $7.66 - -------------------------------------------------------------------------------------------------------- Total return (%)&*** 14.36 (12.86)###+++ - -------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.19 2.01+ Expenses after expense reductions## 1.91 1.91+ Net investment loss (1.07) (1.47)+ Portfolio turnover (%) 163 141 Net assets at end of period (000 Omitted) $192 $132 - -------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R4 CLASS R5 PERIOD ENDED PERIOD ENDED 8/31/05**= 8/31/05**= Net asset value, beginning of period $8.26 $8.26 - -------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - -------------------------------------------------------------------------------------------------------- Net investment loss $(0.04) $(0.03) Net realized and unrealized gain (loss) on investments and foreign currency 0.63^ 0.63^ - -------------------------------------------------------------------------------------------------------- Total from investment operations $0.59 $0.60 - -------------------------------------------------------------------------------------------------------- Net asset value, end of period $8.85 $8.86 - -------------------------------------------------------------------------------------------------------- Total return (%)&*** 7.14++ 7.26++ - -------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.82+ 1.52+ Expenses after expense reductions## 1.54+ 1.24+ Net investment loss (1.10)+ (0.79)+ Portfolio turnover (%) 163 163 Net assets at end of period (000 Omitted) $54 $54 - -------------------------------------------------------------------------------------------------------- ** For the period from the class' inception, December 31, 2002 (Class R), October 31, 2003 (Class R3) and April 1, 2005 (Classes R1, R2, R4, and R5) through the stated period end. *** Certain expenses have been reduced without which performance would have been lower. + Annualized. ++ Not annualized. +++ Per share amount was less than $0.01. # Per share data are based on average shares outstanding. ## Ratios do not reflect reductions from fees paid indirectly. ### The net asset values and total returns previously reported as $6.17 and 34.20% (Class R), $8.74 and (12.36%) (Class R3), respectively, have been revised to reflect the net asset value from the day prior to the class' inception date. The net asset values and total returns previously reported were from inception date, the date the share classes were first available to public shareholders. + The fund's net asset value and total return calculation include a non-recurring accrual recorded as a result of an administrative proceeding regarding disclosure of brokerage allocation practices in connection with fund sales. The non-recurring accrual did not have a material impact on the net asset value per share based on the shares outstanding on the day the proceeds were recorded. & From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. (+) Total returns do not include any applicable sales charges. ^ The per share amount is not in accordance with the net realized and unrealized gain/loss for the period because of the timing of sales of fund shares and the amount of per share realized and unrealized gains and losses at such time. = Redemption fees charged by the fund during this period resulted in a per share impact of less than $0.01. SEE NOTES TO FINANCIAL STATEMENTS NOTES TO FINANCIAL STATEMENTS (1) BUSINESS AND ORGANIZATION MFS Technology Fund (the fund) is a diversified series of MFS Series Trust I (the trust). The trust is organized as a Massachusetts business trust and is registered under the Investment Company Act of 1940, as amended, as an open- end management investment company. (2) SIGNIFICANT ACCOUNTING POLICIES GENERAL - The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The fund can invest in foreign securities. Investments in foreign securities are vulnerable to the effects of changes in the relative values of the local currency and the U.S. dollar and to the effects of changes in each country's legal, political, and economic environment. INVESTMENT VALUATIONS - Equity securities in the fund's portfolio for which market quotations are available are valued at the last sale or official closing price as reported by an independent pricing service on the primary market or exchange on which they are primarily traded, or at the last quoted bid price for securities in which there were no sales during the day. Equity securities traded over the counter are valued at the last sales price traded each day as reported by an independent pricing service, or to the extent there are no sales reported, such securities are valued on the basis of quotations obtained from brokers and dealers. Short-term obligations with a remaining maturity in excess of 60 days will be valued upon dealer-supplied valuations. All other short-term obligations in the fund's portfolio are valued at amortized cost, which approximates market value as determined by the Board of Trustees. Money market mutual funds are valued at net asset value. Investment valuations, other assets, and liabilities initially expressed in foreign currencies are converted each business day into U.S. dollars based upon current exchange rates. When pricing service information or market quotations are not readily available, securities are priced at fair value as determined under the direction of the Board of Trustees. For example, significant events (such as movement in the U.S. securities market, or other regional and local developments) may occur between the time that foreign markets close (where the security is principally traded) and the time that the fund calculates its net asset value (generally, the close of the NYSE) that may impact the value of securities traded in these foreign markets. In these cases, the fund may utilize information from an external vendor or other sources to adjust closing market quotations of foreign equity securities to reflect what it believes to be the fair value of the securities as of the fund's valuation time. Because the frequency of significant events is not predictable, fair valuation of foreign equity securities may occur on a frequent basis. REPURCHASE AGREEMENTS - The fund may enter into repurchase agreements with institutions that the fund's investment adviser has determined are creditworthy. Each repurchase agreement is recorded at cost. The fund requires that the securities collateral in a repurchase transaction be transferred to the custodian in a manner sufficient to enable the fund to obtain those securities in the event of a default under the repurchase agreement. The fund monitors, on a daily basis, the value of the collateral to ensure that its value, including accrued interest, is greater than amounts owed to the fund under each such repurchase agreement. The fund, along with other affiliated entities of Massachusetts Financial Services Company (MFS), may utilize a joint trading account for the purpose of entering into one or more repurchase agreements. FOREIGN CURRENCY TRANSLATION - Purchases and sales of foreign investments, income, and expenses are converted into U.S. dollars based upon currency exchange rates prevailing on the respective dates of such transactions. Gains and losses attributable to foreign currency exchange rates on sales of securities are recorded for financial statement purposes as net realized gains and losses on investments. Gains and losses attributable to foreign exchange rate movements on income and expenses are recorded for financial statement purposes as foreign currency transaction gains and losses. That portion of both realized and unrealized gains and losses on investments that results from fluctuations in foreign currency exchange rates is not separately disclosed. WRITTEN OPTIONS - The fund may write call or put options in exchange for a premium. The premium is initially recorded as a liability, which is subsequently adjusted to the current value of the option contract. When a written option expires, the fund realizes a gain equal to the amount of the premium received. When a written call option is exercised or closed, the premium received is offset against the proceeds to determine the realized gain or loss. When a written put option is exercised, the premium reduces the cost basis of the security purchased by the fund. The fund, as writer of an option, may have no control over whether the underlying securities may be sold (call) or purchased (put) and, as a result, bears the market risk of an unfavorable change in the price of the securities underlying the written option. In general, written call options may serve as a partial hedge against decreases in value in the underlying securities to the extent of the premium received. Written options may also be used as part of an income producing strategy reflecting the view of the fund's management on the direction of interest rates. SECURITY LOANS - State Street Bank and Trust Company ("State Street"), as lending agent, may loan the securities of the fund to certain qualified institutions (the "Borrowers") approved by the fund. The loans are collateralized at all times by cash and/or U.S. Treasury securities in an amount at least equal to the market value of the securities loaned. State Street provides the fund with indemnification against Borrower default. The fund bears the risk of loss with respect to the investment of cash collateral. On loans collateralized by cash, the cash collateral is invested in a money market fund or short-term securities. A portion of the income generated upon investment of the collateral is remitted to the Borrowers, and the remainder is allocated between the fund and the lending agent. On loans collateralized by U.S. Treasury securities, a fee is received from the Borrower, and is allocated between the fund and the lending agent. Income from securities lending is included in interest income on the Statement of Operations. The dividend and interest income earned on the securities loaned is accounted for in the same manner as other dividend and interest income. SHORT TERM FEES - For purchases made on or after July 1, 2004 and before April 1, 2005, the fund charged a 2% redemption fee (which was retained by the fund) on proceeds from Class A, Class B, Class C, and Class I shares redeemed or exchanged within 5 business days following their acquisition (either by purchase or exchange). Effective April 1, 2005, the fund no longer charged a redemption fee. See the fund's prospectus for details. Any redemption fees charged are accounted for as an addition to paid-in capital. INVESTMENT TRANSACTIONS AND INCOME - Investment transactions are recorded on the trade date. Interest income is recorded on the accrual basis. All premium and discount is amortized or accreted for financial statement purposes in accordance with U.S. generally accepted accounting principles. All discount is accreted for tax reporting purposes as required by federal income tax regulations. Dividends received in cash are recorded on the ex-dividend date. Dividend and interest payments received in additional securities are recorded on the ex-dividend or ex-interest date in an amount equal to the value of the security on such date. The fund may receive proceeds from litigation settlements involving its portfolio holdings. Any proceeds received are reflected in realized gain/loss in the Statement of Operations, or in unrealized gain/loss if the security is still held by the fund. FEES PAID INDIRECTLY - The fund's custody fee is reduced according to an arrangement that measures the value of cash deposited with the custodian by the fund. During the year ended August 31, 2005, the fund's custodian fees were reduced by $6,673 under this arrangement. The fund has entered into a commission recapture agreement, under which certain brokers will credit the fund a portion of the commissions generated, to offset certain expenses of the fund. For the year ended August 31, 2005, the fund's miscellaneous expenses were reduced by $15,013 under this agreement. These amounts are shown as a reduction of total expenses on the Statement of Operations. TAX MATTERS AND DISTRIBUTIONS - The fund's policy is to comply with the provisions of the Internal Revenue Code (the Code) applicable to regulated investment companies and to distribute to shareholders all of its net taxable income, including any net realized gain on investments. Accordingly, no provision for federal income or excise tax is provided. Distributions to shareholders are recorded on the ex-dividend date. The fund distinguishes between distributions on a tax basis and a financial reporting basis and only distributions in excess of tax basis earnings and profits are reported in the financial statements as distributions from paid-in capital. Differences in the recognition or classification of income between the financial statements and tax earnings and profits, which result in temporary over-distributions for financial statement purposes, are classified as distributions in excess of net investment income or net realized gains. Common types of book and tax differences that could occur include differences in accounting for foreign currency transactions, wash sales, non-taxable distributions and net operating losses. The fund paid no distributions for the years ended August 31, 2005 and August 31, 2004. During the year ended August 31, 2005, accumulated net investment loss decreased by $1,187,631, accumulated net realized loss on investments and foreign currency transactions decreased by $47,459, and paid-in capital decreased by $1,235,090 due to differences between book and tax accounting for foreign currency transactions, non-taxable distribution and net operating losses. This change had no effect on the net assets or net asset value per share. As of August 31, 2005, the components of distributable earnings (accumulated losses) on a tax basis were as follows: Capital loss carryforward $(341,525,032) Unrealized appreciation (depreciation) 2,644,159 Other temporary differences (15,951) For federal income tax purposes, the capital loss carryforward may be applied against any net taxable realized gains of each succeeding year until the earlier of its utilization or expiration as follows: EXPIRATION DATE August 31, 2007 $(1,684,872) August 31, 2008 (7,671,099) August 31, 2009 (113,374,272) August 31, 2010 (139,439,925) August 31, 2011 (74,891,618) August 31, 2012 (4,463,246) --------------------------------------------------------- Total $(341,525,032) MULTIPLE CLASSES OF SHARES OF BENEFICIAL INTEREST - The fund offers multiple classes of shares, which differ in their respective distribution and service fees. All shareholders bear the common expenses of the fund based on daily net assets of each class, without distinction between share classes. Dividends are declared separately for each class. Differences in per share dividend rates are generally due to differences in separate class expenses. Class B shares will convert to Class A shares approximately eight years after purchase. (3) TRANSACTIONS WITH AFFILIATES INVESTMENT ADVISER - The fund has an investment advisory agreement with Massachusetts Financial Services Company (MFS) to provide overall investment advisory and administrative services, and general office facilities. At the beginning of the period, the management fee was computed daily and paid monthly at an annual rate of 0.75% of the fund's average daily net assets. Effective August 1, 2005, the management fee is computed daily and paid monthly at an annual rate of 0.75% of the fund's average daily net assets up to $1 billion and 0.70% of the fund's average daily net assets in excess of $1 billion. The management fee incurred for the year ended August 31, 2005, was equivalent to an annual effective rate of 0.75% of the fund's average daily net assets. MFS contractually agreed, subject to reimbursement, to bear a portion of the fund's operating expenses, exclusive of management, distribution and service, retirement plan administration and services, and certain other fees and expenses, such that these operating expenses did not exceed 0.40% of the fund's average daily net assets annually. To the extent that the fund's actual operating expenses were below 0.40%, the excess was applied to unreimbursed amounts paid by MFS under the current agreement. This reimbursement agreement terminated on December 31, 2004. The fund will not be required to reimburse MFS $150,885 for unreimbursed expenses. Effective January 1, 2005, the fund has contractually agreed to limit the fund's operating expenses and to pay the fund's operating expenses, exclusive of management, distribution and service, retirement plan administration and services, and certain other fees and expenses, such that the fund's operating expenses do not exceed 0.40% of the fund's average daily net assets annually. This new arrangement will be in effect until December 31, 2005, unless the fund's Board of Trustees consents to an earlier revision or termination of this agreement. DISTRIBUTOR - MFS Fund Distributors, Inc. (MFD), a wholly owned subsidiary of MFS, as distributor, received $9,612 for the year ended August 31, 2005, as its portion of the initial sales charge on sales of Class A shares of the fund. The Board of Trustees has adopted a distribution plan for certain class shares pursuant to Rule 12b-1 of the Investment Company Act of 1940. The fund's distribution plan provides that the fund will pay MFD for services provided by MFD and financial intermediaries in connection with the distribution and servicing of certain share classes. One component of the plan is a distribution fee paid to and retained by MFD. Another component of the plan is a service fee paid to MFD which subsequently pays a portion of this fee to financial intermediaries that enter into sales or service agreements with MFD, or its affiliates, based on the average daily net assets of accounts attributable to such intermediaries. DISTRIBUTION FEE PLAN TABLE: TOTAL ANNUAL SERVICE FEE DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE RETAINED AND SERVICE FEE RATE FEE RATE PLAN(1) RATE(2) BY MFD(3) FEE Class A 0.10% 0.25% 0.35% 0.35% $8,471 $245,172 Class B 0.75% 0.25% 1.00% 1.00% 1,916 496,897 Class C 0.75% 0.25% 1.00% 1.00% 627 145,270 Class R 0.25% 0.25% 0.50% 0.50% 16 9,436 Class R1 0.50% 0.25% 0.75% 0.75% 93 174 Class R2 0.25% 0.25% 0.50% 0.50% 62 116 Class R3 0.25% 0.25% 0.50% 0.50% 22 858 Class R4 0.00% 0.25% 0.25% 0.25% 31 54 - --------------------------------------------------------------------------------------------------------------------------- Total Distribution and Service Fees $897,977 (1) In accordance with the distribution plan for certain classes, the fund pays distribution and/or service fees up to these annual percentage rates of each class' average daily net assets. (2) The annual effective rates represent actual fees incurred under the distribution plan for the year ended August 31, 2005 based on each class' average daily net assets. (3) For the year ended August 31, 2005, MFD retained these service fees. Certain Class A and Class C shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within 12 months following the purchase. Class B shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within six years of purchase. MFD retained all contingent deferred sales charges. Contingent deferred sales charges imposed during the year ended August 31, 2005 were as follows: AMOUNT Class A $4,496 Class B $188,797 Class C $2,908 SHAREHOLDER SERVICING AGENT - The fund pays a portion of shareholder servicing costs to MFS Service Center, Inc. (MFSC), a wholly-owned subsidiary of MFS. MFSC receives a fee from the fund, for its services as shareholder servicing agent, set periodically under the supervision of the fund's Board of Trustees. For the year ended August 31, 2005, the fee was $145,947, which equated to 0.1014% annually of the fund's average daily net assets. MFSC also receives payment from the fund for out-of-pocket and sub-accounting expenses paid by MFSC on behalf of the fund. For the year ended August 31, 2005, these costs amounted to $303,666. ADMINISTRATOR - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to certain funds for which MFS acts as investment adviser. Under an administrative services agreement, the funds may partially reimburse MFS the costs incurred to provide these services, subject to review and approval by the Board of Trustees. Each fund is charged a fixed amount plus a fee based on calendar year average net assets. Effective July 1, 2005, the fund's annual fixed amount is $10,000. The administrative services fee incurred for the year ended August 31, 2005 was equivalent to an annual effective rate of 0.0105% of the fund's average daily net assets. In addition to the administrative services provided by MFS to the fund as described above, MFS is responsible for providing certain retirement plan administration and services with respect to certain Class R shares. These services include various administrative, recordkeeping, and communication/ educational services with respect to the retirement plans which invest in these shares, and may be provided directly by MFS or by a third party. For the year ended August 31, 2005, the fund paid an annual retirement plan administration and services fee up to the following annual percentage rates of each class' average daily net assets: AMOUNT FEE TOTAL RETAINED RATE AMOUNT BY MFS Class R1 0.45% $104 $81 Class R2 0.40% 92 69 Class R3 (formerly Class R2) 0.25% 429 230 Class R4 0.15% 33 11 Class R5 0.10% 22 19 - ------------------------------------------------------------------------------ Total Retirement Plan Administration and Services Fees $680 $410 TRUSTEES' COMPENSATION - The fund pays compensation to Independent Trustees in the form of a retainer, attendance fees, and additional compensation to Board and Committee chairpersons. The fund does not pay compensation directly to Trustees who are officers of the investment adviser, or to officers of the fund, all of whom receive remuneration for their services to the fund from MFS. Certain officers and Trustees of the fund are officers or directors of MFS, MFD, and MFSC. The fund has an unfunded, defined benefit plan for retired Independent Trustees which resulted in a pension expense of $580. The fund also has an unfunded retirement benefit deferral plan for certain current Independent Trustees which resulted in an expense of $4,846. Both amounts are included in Trustees compensation for the year ended August 31, 2005. OTHER - This fund and certain other MFS funds (the funds) have entered into a services agreement (the Agreement) which provides for payment of fees by the funds to Tarantino LLC in return for the provision of services of an Independent Chief Compliance Officer (ICCO) for the funds. The ICCO is an officer of the funds and the sole member of Tarantino LLC. MFS has agreed to reimburse the fund for a portion of the payments made by the funds to Tarantino LLC in the amount of $673, which is shown as a reduction of total expenses in the Statement of Operations. Additionally, MFS has agreed to bear all expenses associated with office space, other administrative support, and supplies provided to the ICCO. The funds can terminate the Agreement with Tarantino LLC at any time under the terms of the Agreement. The fund's investment adviser, MFS, was the subject of an administrative proceeding regarding disclosure of brokerage allocation practices in connection with fund sales. As a result, proceeds in the amount of $102,085 were paid to the fund on February 16, 2005. The investment adviser reimbursed the fund $546,559 for a trade correction. This amount is included in the realized loss on written options transactions on the Statement of Operations. (4) PORTFOLIO SECURITIES Purchases and sales of investments, other than U.S. government securities, purchased option transactions, and short-term obligations, aggregated $229,733,892 and $297,808,075, respectively. The cost and unrealized appreciation and depreciation in the value of the investments owned by the fund, as computed on a federal income tax basis, are as follows: Aggregate cost $118,711,823 -------------------------------------------------------- Gross unrealized appreciation $7,184,428 Gross unrealized depreciation (4,540,269) -------------------------------------------------------- Net unrealized appreciation (depreciation) $2,644,159 (5) SHARES OF BENEFICIAL INTEREST The fund's Declaration of Trust permits the Trustees to issue an unlimited number of full and fractional shares of beneficial interest. Transactions in fund shares were as follows: Year ended 8/31/05 Year ended 8/31/04 SHARES AMOUNT SHARES AMOUNT CLASS A SHARES Shares sold 1,841,301 $15,794,906 7,992,949 $70,472,191 Shares reacquired (6,148,566) (52,768,987) (10,325,346) (90,616,338) - ------------------------------------------------------------------------------------------------------------ Net change (4,307,265) $(36,974,081) (2,332,397) $(20,144,147) CLASS B SHARES Shares sold 601,987 $5,034,688 1,756,482 $15,095,885 Shares reacquired (2,275,531) (18,989,310) (2,510,934) (21,488,750) - ------------------------------------------------------------------------------------------------------------ Net change (1,673,544) $(13,954,622) (754,452) $(6,392,865) CLASS C SHARES Shares sold 230,424 $1,904,542 583,813 $5,022,408 Shares reacquired (830,211) (6,910,220) (1,018,503) (8,740,462) - ------------------------------------------------------------------------------------------------------------ Net change (599,787) $(5,005,678) (434,690) $(3,718,054) CLASS I SHARES Shares sold 153,317 $1,351,997 1,423,278 $12,599,165 Shares reacquired (1,486,367) (13,661,239) (211,528) (1,856,276) - ------------------------------------------------------------------------------------------------------------ Net change (1,333,050) $(12,309,242) 1,211,750 $10,742,889 CLASS R SHARES (FORMERLY CLASS R1) Shares sold 203,930 $1,740,254 173,130 $1,566,350 Shares reacquired (109,402) (937,454) (28,965) (259,610) - ------------------------------------------------------------------------------------------------------------ Net change 94,528 $802,800 144,165 $1,306,740 Period ended 8/31/05* SHARES AMOUNT CLASS R1 SHARES Shares sold 7,503 $61,010 Shares reacquired (1) (17) - -------------------------------------------------------------------------- Net change 7,502 $60,993 CLASS R2 SHARES Shares sold 9,983 $82,697 Year ended 8/31/05 Period ended 8/31/04** SHARES AMOUNT SHARES AMOUNT CLASS R3 SHARES (FORMERLY CLASS R2) Shares sold 11,651 $100,006 25,552 $219,603 Shares reacquired (7,034) (59,817) (8,269) (66,578) - ------------------------------------------------------------------------------------------------------------ Net change 4,617 $40,189 17,283 $153,025 Period ended 8/31/05* SHARES AMOUNT CLASS R4 SHARES Shares sold 6,053 $50,000 CLASS R5 SHARES Shares sold 6,053 $50,000 * For the period from the inception of Class R1, Class R2, Class R4, and Class R5 shares, April 1, 2005, through August 31, 2005. ** For the period from the inception of Class R3 shares, October 31, 2003, through August 31, 2004. (6) LINE OF CREDIT The fund and other affiliated funds participate in a $1 billion unsecured line of credit provided by a syndication of banks under a credit agreement. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its borrowings, at a rate equal to the Federal Reserve funds rate plus 0.35%. In addition, a commitment fee, based on the average daily, unused portion of the line of credit, is allocated among the participating funds at the end of each calendar quarter. The commitment fee allocated to the fund for the year ended August 31, 2005 was $865, and is included in miscellaneous expense. The fund had no significant borrowings during the year ended August 31, 2005. (7) FINANCIAL INSTRUMENTS The fund trades financial instruments with off-balance-sheet risk in the normal course of its investing activities in order to manage exposure to market risks such as interest rates and foreign currency exchange rates. These financial instruments include written options. The notional or contractual amounts of these instruments represent the investment the fund has in particular classes of financial instruments and does not necessarily represent the amounts potentially subject to risk. The measurement of the risks associated with these instruments is meaningful only when all related and offsetting transactions are considered. Written Option Transactions NUMBER OF PREMIUMS CONTRACTS RECEIVED Outstanding, beginning of period -- $-- Options written 4 211,638 Options terminated in closing transactions (4) (211,638) ------------------------------------------------------------- Outstanding, end of period -- $-- REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Trustees of MFS Series Trust I and Shareholders of MFS Technology Fund: We have audited the accompanying statement of assets and liabilities of MFS Technology Fund (the Fund) (one of the portfolios comprising MFS Series Trust I), including the portfolio of investments, as of August 31, 2005, and the related statement of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the periods indicated therein. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. We were not engaged to perform an audit of the Fund's internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of August 31, 2005, by correspondence with the custodian and brokers or by other appropriate auditing procedures where replies from brokers were not received. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of MFS Technology Fund at August 31, 2005, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and its financial highlights for each of the periods indicated therein, in conformity with U.S. generally accepted accounting principles. /s/ ERNST & YOUNG LLP Boston, Massachusetts October 11, 2005 RESULTS OF SHAREHOLDER MEETING (unaudited) - 8/31/05 At a special meeting of shareholders of MFS Series Trust I, which was held on March 23, 2005, the following action was taken: ITEM 1. To elect a Board of Trustees: NUMBER OF DOLLARS ------------------------------------------- NOMINEE AFFIRMATIVE WITHHOLD AUTHORITY Lawrence H. Cohn, M.D. $8,025,286,508.56 $117,939,292.78 - ------------------------------------------------------------------------------- David H. Gunning 8,030,402,677.64 112,823,123.70 - ------------------------------------------------------------------------------- William R. Gutow 8,027,523,726.27 115,702,075.07 - ------------------------------------------------------------------------------- Michael Hegarty 8,021,162,525.49 122,063,275.85 - ------------------------------------------------------------------------------- J. Atwood Ives 8,024,062,680.07 119,163,121.27 - ------------------------------------------------------------------------------- Amy B. Lane 8,019,792,882.59 123,432,918.75 - ------------------------------------------------------------------------------- Robert J. Manning 8,030,980,361.78 112,245,439.56 - ------------------------------------------------------------------------------- Lawrence T. Perera 8,025,935,401.12 117,290,400.22 - ------------------------------------------------------------------------------- Robert C. Pozen 8,031,655,470.25 111,570,331.09 - ------------------------------------------------------------------------------- J. Dale Sherratt 8,027,226,595.42 115,999,205.92 - ------------------------------------------------------------------------------- Laurie J. Thomsen 8,019,388,506.87 123,837,294.47 - ------------------------------------------------------------------------------- TRUSTEES AND OFFICERS -- IDENTIFICATION AND BACKGROUND The Trustees and officers of the Trust, as of October 1, 2005, are listed below, together with their principal occupations during the past five years. (Their titles may have varied during that period.) The address of each Trustee and officer is 500 Boylston Street, Boston, Massachusetts 02116. PRINCIPAL OCCUPATIONS DURING POSITION(s) HELD TRUSTEE/OFFICER THE PAST FIVE YEARS & NAME, DATE OF BIRTH WITH FUND SINCE(1) OTHER DIRECTORSHIPS(2) - ------------------- ---------------- --------------- ----------------------------- INTERESTED TRUSTEES Robert J. Manning(3) Trustee and February 2004 Massachusetts Financial Services (born 10/20/63) President Company, Chief Executive Officer, President, Chief Investment Officer and Director Robert C. Pozen(3) Trustee February 2004 Massachusetts Financial Services (born 08/08/46) Company, Chairman (since February 2004); Harvard Law School (education), John Olin Visiting Professor (since July 2002); Secretary of Economic Affairs, The Commonwealth of Massachusetts (January 2002 to December 2002); Fidelity Investments, Vice Chairman (June 2000 to December 2001); Fidelity Management & Research Company (investment adviser), President (March 1997 to July 2001); Bell Canada Enterprises (telecommunications), Director; Medtronic, Inc. (medical technology), Director; Telesat (satellite communications), Director INDEPENDENT TRUSTEES J. Atwood Ives Trustee and Chair February 1992 Private investor; Eastern (born 05/01/36) of Trustees Enterprises (diversified services company), Chairman, Trustee and Chief Executive Officer (until November 2000) Lawrence H. Cohn, M.D. Trustee August 1993 Brigham and Women's Hospital, (born 03/11/37) Chief of Cardiac Surgery; Harvard Medical School, Professor of Surgery David H. Gunning Trustee January 2004 Cleveland-Cliffs Inc. (mining (born 05/30/42) products and service provider), Vice Chairman/Director (since April 2001); Encinitos Ventures (private investment company), Principal (1997 to April 2001); Lincoln Electric Holdings, Inc. (welding equipment manufacturer), Director William R. Gutow Trustee December 1993 Private investor and real estate (born 09/27/41) consultant; Capitol Entertainment Management Company (video franchise), Vice Chairman Michael Hegarty Trustee December 2004 Retired; AXA Financial (financial (born 12/21/44) services and insurance), Vice Chairman and Chief Operating Officer (until May 2001); The Equitable Life Assurance Society (insurance), President and Chief Operating Officer (until May 2001) Amy B. Lane Trustee January 2004 Retired; Merrill Lynch & Co., (born 02/08/53) Inc., Managing Director, Investment Banking Group (1997 to February 2001); Borders Group, Inc. (book and music retailer), Director; Federal Realty Investment Trust (real estate investment trust), Trustee Lawrence T. Perera Trustee July 1981 Hemenway & Barnes (attorneys), (born 06/23/35) Partner J. Dale Sherratt Trustee August 1993 Insight Resources, Inc. (born 09/23/38) (acquisition planning specialists), President; Wellfleet Investments (investor in health care companies), Managing General Partner (since 1993); Cambridge Nutraceuticals (professional nutritional products), Chief Executive Officer (until May 2001) Laurie J. Thomsen Trustee March 2005 Private investor; Prism Venture (born 08/05/57) Partners (venture capital), Co- founder and General Partner (until June 2004); St. Paul Travelers Companies (commercial property liability insurance), Director OFFICERS Robert J. Manning(3) President and February 2004 Massachusetts Financial Services (born 10/20/63) Trustee Company, Chief Executive Officer, President, Chief Investment Officer and Director Tracy Atkinson(3) Treasurer September 2005 Massachusetts Financial Services (born 12/30/64) Company, Senior Vice President (since September 2004); PricewaterhouseCoopers LLP, Partner (prior to September 2004) Christopher R. Bohane(3) Assistant July 2005 Massachusetts Financial Services (born 1/18/74) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since April 2003); Kirkpatrick & Lockhart LLP (law firm), Associate (prior to April 2003); Nvest Services Company, Assistant Vice President and Associate Counsel (prior to January 2001) Jeffrey N. Carp(3) Secretary and September 2004 Massachusetts Financial Services (born 12/01/56) Clerk Company, Executive Vice President, General Counsel and Secretary (since April 2004); Hale and Dorr LLP (law firm), Partner (prior to April 2004) Ethan D. Corey(3) Assistant July 2005 Massachusetts Financial Services (born 11/21/63) Secretary and Company, Special Counsel (since Assistant Clerk December 2004); Dechert LLP (law firm), Counsel (prior to December 2004) Stephanie A. DeSisto(3) Assistant May 2003 Massachusetts Financial Services (born 10/01/53) Treasurer Company, Vice President (since April 2003); Brown Brothers Harriman & Co., Senior Vice President (November 2002 to April 2003); ING Groep N.V./Aeltus Investment Management, Senior Vice President (prior to November 2002) David L. DiLorenzo(3) Assistant July 2005 Massachusetts Financial Services (born 8/10/68) Treasurer Company, Vice President (since June 2005); JP Morgan Investor Services, Vice President (January 2001 to June 2005); State Street Bank, Vice President and Corporate Audit Manager (prior to January 2001) Timothy M. Fagan(3) Assistant September 2005 Massachusetts Financial Services (born 7/10/68) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since September 2005); John Hancock Advisers, LLC, Vice President and Chief Compliance Officer (September 2004 to August 2005), Senior Attorney (prior to September 2004); John Hancock Group of Funds, Vice President and Chief Compliance Officer (September 2004 to December 2004) Mark D. Fischer(3) Assistant July 2005 Massachusetts Financial Services (born 10/27/70) Treasurer Company, Vice President (since May 2005); JP Morgan Investment Management Company, Vice President (prior to May 2005) Brian T. Hourihan(3) Assistant September 2004 Massachusetts Financial Services (born 11/11/64) Secretary and Company, Vice President, Senior Assistant Clerk Counsel and Assistant Secretary (since June 2004); Affiliated Managers Group, Inc., Chief Legal Officer/Centralized Compliance Program (January to April 2004); Fidelity Research & Management Company, Assistant General Counsel (prior to January 2004) Ellen Moynihan(3) Assistant April 1997 Massachusetts Financial Services (born 11/13/57) Treasurer Company, Vice President Susan S. Newton(3) Assistant May 2005 Massachusetts Financial Services (born 03/07/50) Secretary and Company, Senior Vice President and Assistant Clerk Associate General Counsel (since April 2005); John Hancock Advisers, LLC, Senior Vice President, Secretary and Chief Legal Officer (prior to April 2005); John Hancock Group of Funds, Senior Vice President, Secretary and Chief Legal Officer (prior to April 2005) Susan A. Pereira(3) Assistant July 2005 Massachusetts Financial Services (born 11/05/70) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since June 2004); Bingham McCutchen LLP (law firm), Associate (January 2001 to June 2004); Preti, Flaherty, Beliveau, Pachios & Haley, LLC, Associate (prior to January 2001) Frank L. Tarantino Independent Chief June 2004 Tarantino LLC (provider of (born 03/07/44) Compliance compliance services), Principal Officer (since June 2004); CRA Business Strategies Group (consulting services), Executive Vice President (April 2003 to June 2004); David L. Babson & Co. (investment adviser), Managing Director, Chief Administrative Officer and Director (February 1997 to March 2003) James O. Yost(3) Assistant September 1990 Massachusetts Financial Services (born 06/12/60) Treasurer Company, Senior Vice President - ------------ (1) Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served continuously since appointment unless indicated otherwise. (2) Directorships or trusteeships of companies required to report to the Securities and Exchange Commission (i.e., "public companies"). (3) "Interested person" of the Trust within the meaning of the Investment Company Act of 1940 (referred to as the 1940 Act), which is the principal federal law governing investment companies like the fund, as a result of position with MFS. The address of MFS is 500 Boylston Street, Boston, Massachusetts 02116. Each Trustee has been elected by shareholders and each Trustee and officer holds office until his or her successor is chosen and qualified or until his or her earlier death, resignation, retirement or removal. Messrs. Ives and Sherratt and Mses. Lane and Thomsen are members of the Trust's Audit Committee. Each of the Trust's Trustees and officers holds comparable positions with certain other funds of which MFS or a subsidiary is the investment adviser or distributor, and, in the case of the officers, with certain affiliates of MFS. As of December 31, 2004, each Trustee served as a board member of 99 funds within the MFS Family of Funds. The Trust held a shareholders' meeting in 2005, and will hold a shareholders' meeting at least once every five years thereafter, to elect Trustees. The Statement of Additional Information contains further information about the Trustees and is available without charge upon request by calling 1-800-225-2606. - ------------------------------------------------------------------------------------------------------- INVESTMENT ADVISER CUSTODIAN Massachusetts Financial Services Company State Street Bank and Trust Company 500 Boylston Street, Boston, MA 225 Franklin Street, Boston, MA 02110 02116-3741 INDEPENDENT REGISTERED PUBLIC DISTRIBUTOR ACCOUNTING FIRM MFS Fund Distributors, Inc. Ernst & Young LLP 500 Boylston Street, Boston, MA 200 Clarendon Street, Boston, MA 02116 02116-3741 PORTFOLIO MANAGER Telis D. Bertsekas BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT The Investment Company Act of 1940 requires that both the full Board of Trustees and a majority of the non-interested ("independent") Trustees, voting separately, annually approve the continuation of the Fund's investment advisory agreement with MFS. The Trustees consider matters bearing on the Fund and its advisory arrangements at their meetings throughout the year, including a review of performance data at each regular meeting. In addition, the independent Trustees met several times over the course of three months beginning in May and ending in July, 2005 ("contract review meetings") for the specific purpose of considering whether to approve the continuation of the investment advisory agreement for the Fund and the other investment companies that the Board oversees (the "MFS Funds"). The independent Trustees were assisted in their evaluation of the Fund's investment advisory agreement by independent legal counsel, from whom they received separate legal advice and with whom they met separately from MFS during various contract review meetings. The independent Trustees were also assisted in this process by the MFS Funds' Independent Chief Compliance Officer, a full-time senior officer appointed by and reporting to the independent Trustees. In connection with their deliberations regarding the continuation of the investment advisory agreement, the Trustees, including the independent Trustees, considered such information and factors as they believed, in light of the legal advice furnished to them and their own business judgment, to be relevant. The investment advisory agreement for the Fund was considered separately, although the Trustees also took into account the common interests of all MFS Funds in their review. As described below, the Trustees considered the nature, quality, and extent of the various investment advisory, administrative, and shareholder services performed by MFS under the existing investment advisory agreement and other arrangements with the Fund. In connection with their contract review meetings, the Trustees received and relied upon materials which included, among other items: (i) information provided by Lipper Inc. on the investment performance of the Fund for various time periods ended December 31, 2004 and the investment performance of a group of funds with substantially similar investment classifications/objectives (the "Lipper performance universe"), as well as the investment performance of a group of funds identified by objective criteria suggested by MFS ("peer funds"), (ii) information provided by Lipper Inc. on the Fund's advisory fees and other expenses and the advisory fees and other expenses of comparable funds identified by Lipper (the "Lipper expense group"), as well as the advisory fees and other expenses of peer funds identified by objective criteria suggested by MFS, (iii) information provided by MFS on the advisory fees of comparable portfolios of other clients of MFS, including institutional separate account and other clients, (iv) information as to whether and to what extent applicable expense waivers, reimbursements or fee "breakpoints" are observed for the Fund, (v) information regarding MFS' financial results and financial condition, including MFS' and certain of its affiliates' estimated profitability from services performed for the Fund and the MFS Funds as a whole, (vi) MFS' views regarding the outlook for the mutual fund industry and the strategic business plans of MFS, (vii) descriptions of various functions performed by MFS for the Funds, such as compliance monitoring and portfolio trading practices, and (viii) information regarding the overall organization of MFS, including information about MFS' senior management and other personnel providing investment advisory, administrative and other services to the Fund and the other MFS Funds. The comparative performance, fee and expense information prepared and provided by Lipper Inc. was not independently verified and the independent Trustees did not independently verify any information provided to them by MFS. The Trustees' conclusion as to the continuation of the investment advisory agreement was based on a comprehensive consideration of all information provided to the Trustees and not the result of any single factor. Some of the factors that figured particularly in the Trustees' deliberations are described below, although individual Trustees may have evaluated the information presented differently from one another, giving different weights to various factors. It is also important to recognize that the fee arrangements for the Fund and other MFS Funds are the result of years of review and discussion between the independent Trustees and MFS, that certain aspects of such arrangements may receive greater scrutiny in some years than others, and that the Trustees' conclusions may be based, in part, on their consideration of these same arrangements during the course of the year and in prior years. Based on information provided by Lipper Inc. and MFS, the Trustees reviewed the Fund's total return investment performance as well as the performance of peer groups of funds over various time periods. The Trustees placed particular emphasis on the total return performance of the Fund's Class A shares in comparison to the performance of funds in its Lipper performance universe over the three-year period ended December 31, 2004, which the Trustees believed was a long enough period to reflect differing market conditions. The Fund's performance was in the 75th percentile relative to the other funds in the universe for this three-year period (the 1st percentile being the best performers and the 100th percentile being the worst performers). The total return performance of the Fund's Class A shares was in the 57th percentile for the one-year period and the 40th percentile for the five-year period ended December 31, 2004 relative to the Lipper performance universe. Because of the passage of time, these performance results are likely to differ from the performance results for more recent periods, including those shown elsewhere in this report. In the course of their deliberations, the Trustees took into account information provided by MFS in connection with the contract review meetings, as well as during investment review meetings conducted with portfolio management personnel during the course of the year, as to MFS' efforts to improve the Fund's performance, including assigning a new primary portfolio manager for the Fund in March of 2005. After reviewing these and related factors, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that they were satisfied with MFS' responses and efforts relating to investment performance. In assessing the reasonableness of the Fund's advisory fee, the Trustees considered, among other information, the Fund's advisory fee and the total expense ratio of the Fund's Class A shares as a percentage of average net assets and the advisory fee and total expense ratios of peer groups of funds based on information provided by Lipper Inc. and MFS. The Trustees considered whether the Fund was subject to any fee waivers or reductions or expense limitations. The Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate and total expense ratio were each lower than the Lipper expense group median. The Trustees also considered the advisory fees charged by MFS to institutional accounts. In comparing these fees, the Trustees considered information provided by MFS as to the generally broader scope of services provided by MFS to the Fund in comparison to institutional accounts, the higher demands placed on MFS' investment personnel and trading infrastructure as a result of the daily cash in-flows and out-flows of the Fund, and the impact on MFS and expenses associated with the more extensive regulatory regime to which the Fund is subject in comparison to institutional accounts. The Trustees also considered whether the Fund is likely to benefit from any economies of scale in the management of the Fund in the event of growth in assets of the Fund. They noted that the Fund's advisory fee rate schedule is not currently subject to any breakpoints. Based on these considerations, at the request of the Trustees, MFS agreed to implement an advisory fee breakpoint to reduce the Fund's annual advisory fee rate by 0.05% on net assets over $1 billion, effective August 1, 2005. The Trustees also considered information prepared by MFS relating to MFS' costs and profits with respect to the Fund, the MFS Funds considered as a group, and other investment companies and accounts advised by MFS, as well as MFS' methodologies used to determine and allocate its costs to the MFS Funds, the Fund and other accounts and products for purposes of estimating profitability. After reviewing these and other factors described herein, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that the advisory fees charged to the Fund represent reasonable compensation in light of the nature and quality of the services being provided by MFS to the Fund. In addition, the Trustees considered MFS' resources and related efforts to continue to retain, attract and motivate capable personnel to serve the Fund. The Trustees also considered current and developing conditions in the financial services industry, including the entry into the industry of large and well-capitalized companies which are spending, and appear to be prepared to continue to spend, substantial sums to engage personnel and to provide services to competing investment companies. In this regard, the Trustees also considered the financial resources of MFS and its ultimate parent, Sun Life Financial Inc. The Trustees also considered the advantages and possible disadvantages to the Fund of having an adviser which also serves other investment companies as well as other accounts. The Trustees also considered the nature, quality, cost, and extent of administrative, transfer agency, and distribution services provided to the Fund by MFS and its affiliates under agreements and plans other than the investment advisory agreement, including any 12b-1 fees the Fund pays to MFS Fund Distributors, Inc., an affiliate of MFS. The Trustees also considered the nature, extent and quality of certain other services MFS performs or arranges for on the Fund's behalf, including securities lending programs, directed expense payment programs, class action recovery programs, and MFS' interaction with third-party service providers, principally custodians and sub-custodians. The Trustees concluded that the various non-advisory services provided by MFS and its affiliates on behalf of the Funds were satisfactory. The Trustees also considered benefits to MFS from the use of the Fund's portfolio brokerage commissions to pay for research and other similar services (including MFS' general policy to pay directly for third-party research), and various other factors. Additionally, the Trustees considered so-called "fall- out benefits" to MFS such as reputational value derived from serving as investment manager to the Fund. Based on their evaluation of factors that they deemed to be material, including those factors described above, the Board of Trustees, including a majority of the independent Trustees, concluded that the Fund's investment advisory agreement with MFS should be continued for an additional one-year period, commencing August 1, 2005. A discussion regarding the Board's most recent review and renewal of the Fund's investment advisory agreement will be available on or before December 1, 2005 by clicking on the fund's name under "Select a fund" on the MFS website (mfs.com). PROXY VOTING POLICIES AND INFORMATION A general description of the MFS funds' proxy voting policies and procedures is available without charge, upon request, by calling 1-800-225-2606, by visiting the Proxy Voting section of mfs.com or by visiting the SEC's Web site at http://www.sec.gov. Information regarding how the fund voted proxies relating to portfolio securities during the most recent twelve-month period ended June 30 is available without charge by visiting the Proxy Voting section of mfs.com or by visiting the SEC's Web site at http://www.sec.gov. QUARTERLY PORTFOLIO DISCLOSURE The fund will file a complete schedule of portfolio holdings with the Securities and Exchange Commission (the Commission) for the first and third quarters of each fiscal year on Form N-Q. The fund's Form N-Q may be reviewed and copied at the: Public Reference Room Securities and Exchange Commission Washington, D.C. 20549-0102 Information on the operation of the Public Reference Room may be obtained by calling the Commission at 1-800-SEC-0330. The fund's Form N-Q is available on the EDGAR database on the Commission's Internet website at http://www.sec.gov, and copies of this information may be obtained, upon payment of a duplicating fee, by electronic request at the following e-mail address: publicinfo@sec.gov or by writing the Public Reference Section at the above address. A shareholder can also obtain the quarterly portfolio holdings report at mfs.com. FEDERAL TAX INFORMATION (unaudited) In January 2006, shareholders will be mailed a Form 1099-DIV reporting the federal tax status of all distributions paid during the calendar year 2005. CONTACT INFORMATION INVESTOR SERVICE Write to us at: MFS Service Center, Inc. P.O. Box 55824 Boston, MA 02205-5824 Type of Information Phone number Hours, Eastern Time - -------------------------------------------------------------------------------- General information 1-800-225-2606 8 a.m. to 8 p.m., any business day - -------------------------------------------------------------------------------- Speech- or hearing-impaired 1-800-637-6576 9 a.m. to 5 p.m., any business day - -------------------------------------------------------------------------------- Share prices, account 1-800-MFS-TALK balances exchanges (1-800-637-8255) 24 hours a day, 365 days a or stock and bond outlooks touch-tone required year - -------------------------------------------------------------------------------- M F S(SM) INVESTMENT MANAGEMENT(R) (C) 2005 MFS Investment Management(R) MFS(R) investment products are offered through MFS Fund Distributors, Inc., 500 Boylston Street, Boston, MA 02116. SCT-ANN-10/05 48M MFS(R) VALUE FUND 8/31/05 ANNUAL REPORT - ------------------------------------------------------------------------------- LETTER FROM THE CEO 1 - -------------------------------------------------- PORTFOLIO COMPOSITION 2 - -------------------------------------------------- MANAGEMENT REVIEW 3 - -------------------------------------------------- PERFORMANCE SUMMARY 5 - -------------------------------------------------- EXPENSE TABLE 8 - -------------------------------------------------- PORTFOLIO OF INVESTMENTS 10 - -------------------------------------------------- FINANCIAL STATEMENTS 15 - -------------------------------------------------- NOTES TO FINANCIAL STATEMENTS 28 - -------------------------------------------------- REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 38 - -------------------------------------------------- RESULTS OF SHAREHOLDER MEETING 39 - -------------------------------------------------- TRUSTEES AND OFFICERS 40 - -------------------------------------------------- BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT 45 - -------------------------------------------------- PROXY VOTING POLICIES AND INFORMATION 49 - -------------------------------------------------- QUARTERLY PORTFOLIO DISCLOSURE 49 - -------------------------------------------------- FEDERAL TAX INFORMATION 49 - -------------------------------------------------- CONTACT INFORMATION BACK COVER - -------------------------------------------------- THIS REPORT HAS BEEN PREPARED FOR THE GENERAL INFORMATION TO SHAREHOLDERS. IT IS AUTHORIZED FOR DISTRIBUTION TO PROSPECTIVE INVESTORS ONLY WHEN PRECEDED OR ACCOMPANIED BY A CURRENT PROSPECTUS. M F S(SM) INVESTMENT MANAGEMENT(R) LETTER FROM THE CEO [Photo of Robert J. Manning] Dear Shareholders, Most investors are familiar with the basic principles of investing - focus on the long term and keep your assets diversified across different investment categories. Still, it is surprising how often we forget these basic lessons. Certainly, the dot-com euphoria that overtook Wall Street in the late 1990s had many people hoping they could become millionaires overnight. But the market decline that started in the spring of 2000 taught everyone how misguided those hopes had been. Now, less than five years after the market taught a harsh lesson in the follies of speculative investing, we are seeing a number of trends that suggest many investors, including professionals, are hoping for overnight miracles again. We see a steady stream of market "gurus" on television news shows, promising to teach amateur investors the strategies that will allow them to get rich quick. Hedge funds - which by their nature move in and out of investments rapidly - have soared in popularity over the past five years. We are reminded every day that we live in a "what have you done for me lately?" world, but this mindset should not influence how we invest and manage our money. In fact, investors often fall short of their goals because they trade in and out of investments too frequently and at inopportune times. Throughout our entire 80-year history, MFS' money management process has focused on long-term investment opportunities. We firmly believe that one of the best ways to realize long-term financial goals - be it a college education, a comfortable retirement, or a secure family legacy - is to follow a three-pronged approach that focuses on longer time horizons. Allocate holdings across the major asset classes - including stocks, bonds, and cash. Diversify within each class to take advantage of different market segments and investing styles. And rebalance assets regularly to maintain a desired asset allocation.* This long-term approach requires diligence and patience, two traits that in our experience are essential to capitalizing on the many opportunities the financial markets can offer. Respectfully, /s/ Robert J. Manning Robert J. Manning Chief Executive Officer and Chief Investment Officer MFS Investment Management(R) October 17, 2005 *Asset allocation, diversification, and rebalancing does not guarantee a profit or protect against a loss. The opinions expressed in this letter are those of MFS, and no forecasts can be guaranteed. PORTFOLIO COMPOSITION PORTFOLIO STRUCTURE Stocks 97.7% Cash & Other Net Assets 2.3% TOP TEN HOLDINGS Bank of America Corp. 3.9% ------------------------------------------------ Altria Group, Inc. 3.3% ------------------------------------------------ ConocoPhillips 3.1% ------------------------------------------------ Citigroup, Inc. 3.1% ------------------------------------------------ Goldman Sachs Group, Inc. 2.8% ------------------------------------------------ MetLife, Inc. 2.7% ------------------------------------------------ Sprint Nextel Corp. 2.5% ------------------------------------------------ TOTAL S.A., ADR 2.4% ------------------------------------------------ Dominion Resources, Inc. 2.4% ------------------------------------------------ Allstate Corp. 2.1% ------------------------------------------------ SECTOR WEIGHTINGS Financial Services 28.0% ------------------------------------------------ Energy 12.4% ------------------------------------------------ Utilities & Communications 10.3% ------------------------------------------------ Industrial Goods & Services 10.2% ------------------------------------------------ Consumer Staples 10.0% ------------------------------------------------ Basic Materials 7.5% ------------------------------------------------ Health Care 6.6% ------------------------------------------------ Leisure 4.3% ------------------------------------------------ Retailing 2.5% ------------------------------------------------ Special Products & Services 1.6% ------------------------------------------------ Autos & Housing 1.6% ------------------------------------------------ Technology 1.4% ------------------------------------------------ Transportation 1.3% ------------------------------------------------ Percentages are based on net assets as of 8/31/05. The portfolio is actively managed, and current holdings may be different. MANAGEMENT REVIEW SUMMARY OF RESULTS For the twelve months ended August 31, 2005, Class A shares of the MFS Value Fund provided a total return of 15.36%, at net asset value. In comparison, the fund's benchmark, the Russell 1000 Value Index returned 16.86%. DETRACTORS FROM PERFORMANCE A combination of stock selection and allocation in the retailing, basic materials, and technology sectors held back results in comparison to the Russell 1000 Value Index. Although retailing was the largest detracting sector, no individual securities were among the fund's top detractors over the period. In the basic materials sector our positioning in paper and packaging concern International Paper held back relative results as the stock underperformed the broad equity index. Our positioning in technology firm Hewlett-Packard* also hurt results. Stocks in other sectors that dampened investment results included financial services firm Fannie Mae. Avoiding or underweighting certain firms in the strong performing energy sector such as Exxon Mobil, Valero Energy, Chevron Corp., and Burlington Resources also hurt relative returns. Our positioning in personal care firm Kimberly-Clark and management consulting firm Accenture Ltd. held back relative results as well. The fund's cash position also detracted from relative performance during the period ended August 31, 2005. The fund holds cash to buy new holdings and to provide liquidity. In a period when equity markets outperformed cash, holding any cash hurt performance against the fund's benchmark, which has no cash position. CONTRIBUTORS TO PERFORMANCE Stock selection in the utilities and communications sector contributed to relative performance. Our holdings in electricity provider TXU Corp. added to results as that stock more than doubled over the period. Overall, our stock selection in the energy sector also boosted the fund's relative performance. Our investments in integrated energy firm ConocoPhillips and independent oil and gas exploration and production company Unocal* proved positive as both stocks performed well over the period. Elsewhere in the energy sector, our positioning in oil driller Noble Corp, and oil and gas producer TOTAL S.A (not index constituents) aided relative results. Additionally our position in exploration firm EOG Resources also bolstered results. In addition, our positioning in agricultural commodities firm Archer Daniels Midland positively impacted relative performance. Respectfully, Steven Gorham Portfolio Manager * Security was not held in the portfolio at period-end. The views expressed in this report are those of the portfolio manager only through the end of the period of the report as stated on the cover and do not necessarily reflect the views of MFS or any other person in the MFS organization. These views are subject to change at any time based on market and other conditions, and MFS disclaims any responsibility to update such views. These views may not be relied upon as investment advice or an indication of trading intent on behalf of any MFS Fund. References to specific securities are not recommendations of such securities, and may not be representative of any MFS Fund's current or future investments. PERFORMANCE SUMMARY THROUGH 8/31/05 The following chart illustrates the historical performance of the fund's original share class in comparison to its benchmark. Performance results include the deduction of the maximum applicable sales charge and reflect the percentage change in net asset value, including reinvestment of dividends and capital gains distributions. Benchmark comparisons are unmanaged and do not reflect any fees or expenses. The performance of other share classes will be greater than or less than the line shown. (See Notes to Performance Summary.) VISIT MFS.COM FOR THE MOST RECENT MONTH-END PERFORMANCE RESULTS. (FOR THE MOST RECENT MONTH-END PERFORMANCE FOR CLASS I SHARES CALL 1-888-808-6374.) MARKET VOLATILITY CAN SIGNIFICANTLY AFFECT SHORT-TERM PERFORMANCE, AND CURRENT PERFORMANCE MAY BE LOWER OR HIGHER THAN THE PERFORMANCE DATA QUOTED. THE PERFORMANCE DATA QUOTED REPRESENTS PAST PERFORMANCE, WHICH IS NO GUARANTEE OF FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE WILL FLUCTUATE, AND SHARES, WHEN REDEEMED, MAY BE WORTH MORE OR LESS THAN THEIR ORIGINAL COST. HIGH SHORT-TERM RETURNS FOR ANY PERIOD MAY BE AND LIKELY WERE ATTRIBUTABLE TO FAVORABLE MARKET CONDITIONS DURING THAT PERIOD, WHICH MAY NOT BE REPEATABLE. THE PERFORMANCE SHOWN DOES NOT REFLECT THE DEDUCTION OF TAXES, IF ANY, THAT A SHAREHOLDER WOULD PAY ON FUND DISTRIBUTIONS OR THE REDEMPTION OF FUND SHARES. GROWTH OF A HYPOTHETICAL $10,000 INVESTMENT (For the period from the commencement of the fund's investment operations, January 2, 1996, through August 31, 2005. Index information is from January 2, 1996.) MFS Value Fund Russell 1000 - Class A Value Index 1/96 $ 9,425 $10,000 8/96 10,433 10,638 8/97 14,403 14,844 8/98 15,772 15,421 8/99 19,601 20,060 8/00 22,727 20,893 8/01 23,451 20,660 8/02 21,190 17,946 8/03 22,508 20,033 8/04 26,364 23,542 8/05 30,413 27,511 TOTAL RATES OF RETURN THROUGH 8/31/05 AVERAGE ANNUAL WITHOUT SALES CHARGE Share class Class inception date 1-yr 5-yr Life* - --------------------------------------------------------------------------- A 1/02/96 15.36% 6.00% 12.89% - --------------------------------------------------------------------------- B 11/04/97 14.61% 5.32% 12.30% - --------------------------------------------------------------------------- C 11/05/97 14.63% 5.31% 12.31% - --------------------------------------------------------------------------- I 1/02/97 15.78% 6.37% 13.16% - --------------------------------------------------------------------------- R** 12/31/02 15.21% 5.92% 12.85% - --------------------------------------------------------------------------- R1 4/01/05 14.98% 5.93% 12.85% - --------------------------------------------------------------------------- R2 4/01/05 15.13% 5.96% 12.87% - --------------------------------------------------------------------------- R3** 10/31/03 14.91% 5.85% 12.81% - --------------------------------------------------------------------------- R4 4/01/05 15.34% 6.00% 12.89% - --------------------------------------------------------------------------- R5 4/01/05 15.52% 6.03% 12.91% - --------------------------------------------------------------------------- 529A 7/31/02 15.09% 5.81% 12.78% - --------------------------------------------------------------------------- 529B 7/31/02 14.32% 5.41% 12.56% - --------------------------------------------------------------------------- 529C 7/31/02 14.32% 5.42% 12.57% - --------------------------------------------------------------------------- AVERAGE ANNUAL Comparative benchmarks - --------------------------------------------------------------------------- Average equity income fund+ 14.28% 4.08% 8.72% - --------------------------------------------------------------------------- Russell 1000 Value Index# 16.86% 5.66% 11.04% - --------------------------------------------------------------------------- AVERAGE ANNUAL WITH SALES CHARGE Share class - --------------------------------------------------------------------------- A 8.72% 4.75% 12.20% - --------------------------------------------------------------------------- B 10.61% 4.99% 12.30% - --------------------------------------------------------------------------- C 13.63% 5.31% 12.31% - --------------------------------------------------------------------------- 529A 8.47% 4.56% 12.10% - --------------------------------------------------------------------------- 529B 10.32% 5.09% 12.56% - --------------------------------------------------------------------------- 529C 13.32% 5.42% 12.57% - --------------------------------------------------------------------------- Class I, R, R1, R2, R3, R4, and R5 shares do not have a sales charge. Please see Notes to Performance Summary for more details. * For the period from the commencement of the fund's investment operations, January 2, 1996, through August 31, 2005. Index information is from January 2, 1996. ** Effective April 1, 2005, Class R1 shares have been renamed "Class R shares" and Class R2 shares have been renamed "Class R3 shares." + Source: Lipper Inc., an independent firm that reports mutual fund performance. # Source: Standard & Poor's Micropal, Inc. INDEX DEFINITION Russell 1000 Value Index - is constructed to provide a comprehensive barometer for the value securities in the large-cap segment of the U.S. equity universe. Companies in this index generally have lower price-to-book ratios and lower forecasted growth values. It is not possible to invest directly in an index. NOTES TO PERFORMANCE SUMMARY Class A and 529A results including sales charge reflect the deduction of the maximum 5.75% sales charge. Class B and 529B results including sales charge reflect the deduction of the applicable contingent deferred sales charge (CDSC), which declines over six years from 4% to 0%. Class C and 529C results including sales charge (assuming redemption within one year from the end of the prior month of purchase) reflect the deduction of the 1% CDSC. Class R shares have no initial sales charge or CDSC and are available only to existing Class R shareholders. Class I, R1, R2, R3, R4, and R5 shares have no initial sales charge or CDSC. Class I shares are only available to certain eligible investors, and Class R1, R2, R3, R4, and R5 shares are only available to certain retirement plans. Class 529 shares are only available in conjunction with qualified tuition programs, such as the MFS 529 Savings Plan. There also is an additional annual fee, which is detailed in the program description, on qualified tuition programs. If this fee was reflected, the performance for Class 529 shares would have been lower. This annual fee is waived for Oregon residents and for those accounts with assets of $25,000 or more. Performance for share classes offered after Class A shares includes the performance of the fund's Class A shares for periods prior to their offering. This blended class performance has been adjusted to take into account differences in sales loads, if any, applicable to these share classes, but has not been adjusted to take into account differences in class specific operating expenses (such as Rule 12b-1 fees). Compared to performance these share classes would have experienced had they been offered for the entire period, the use of blended performance generally results in higher performance for share classes with higher operating expenses than the share class to which it is blended, and lower performance for share classes with lower operating expenses than the share class to which it is blended. Performance results reflect any applicable expense subsidies and waivers in effect during the periods shown. Without such subsidies and waivers the fund's performance results would be less favorable. Please see the prospectus and financial statements for complete details. The performance shown reflects a non-recurring accrual made to the fund on July 28, 2004, relating to MFS' revenue sharing settlement with the Securities and Exchange Commission, without which the performance would have been lower. The proceeds were paid to the fund on February 16, 2005. From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. EXPENSE TABLE FUND EXPENSES BORNE BY THE SHAREHOLDERS DURING THE PERIOD, MARCH 1, 2005 THROUGH AUGUST 31, 2005. As a shareholder of the fund, you incur two types of costs: (1) transaction costs, including sales charges (loads) on certain purchase or redemption payments and redemption fees on certain exchanges and redemptions, and (2) ongoing costs, including management fees; distribution and service (12b-1) fees; and other fund expenses. This example is intended to help you understand your ongoing costs (in dollars) of investing in the fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 invested at the beginning of the period and held for the entire period, March 1, 2005 through August 31, 2005. ACTUAL EXPENSES The first line for each share class in the table below provides information about actual account values and actual expenses. You may use the information in this line, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading entitled "Expenses Paid During Period" to estimate the expenses you paid on your account during this period. HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES The second line for each share class in the table below provides information about hypothetical account values and hypothetical expenses based on the fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as sales charges (loads) or redemption fees. Therefore, the second line for each share class in the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher. - ------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period** Expense Account Value Account Value 3/01/05- Share Class Ratio 3/01/05 8/31/05 8/31/05 - -------------------------------------------------------------------------------- Actual 1.18% $1,000.00 $1,017.20 $6.00 A --------------------------------------------------------------------- Hypothetical* 1.18% $1,000.00 $1,019.26 $6.01 - -------------------------------------------------------------------------------- Actual 1.83% $1,000.00 $1,013.70 $9.29 B ---------------------------------------------------------------------- Hypothetical* 1.83% $1,000.00 $1,015.98 $9.30 - -------------------------------------------------------------------------------- Actual 1.83% $1,000.00 $1,013.80 $9.29 C --------------------------------------------------------------------- Hypothetical* 1.83% $1,000.00 $1,015.98 $9.30 - -------------------------------------------------------------------------------- Actual 0.83% $1,000.00 $1,019.10 $4.22 I --------------------------------------------------------------------- Hypothetical* 0.83% $1,000.00 $1,021.02 $4.23 - -------------------------------------------------------------------------------- R Actual 1.33% $1,000.00 $1,016.60 $6.76 (formerly --------------------------------------------------------------------- R1) Hypothetical* 1.33% $1,000.00 $1,018.50 $6.77 - -------------------------------------------------------------------------------- Actual 2.04% $1,000.00 $1,013.90 $10.36 R1 --------------------------------------------------------------------- Hypothetical* 2.04% $1,000.00 $1,014.92 $10.36 - -------------------------------------------------------------------------------- Actual 1.73% $1,000.00 $1,015.20 $8.79 R2 --------------------------------------------------------------------- Hypothetical* 1.73% $1,000.00 $1,016.48 $8.79 - -------------------------------------------------------------------------------- R3 Actual 1.58% $1,000.00 $1,015.00 $8.02 (formerly --------------------------------------------------------------------- R2) Hypothetical* 1.58% $1,000.00 $1,017.24 $8.03 - -------------------------------------------------------------------------------- Actual 1.23% $1,000.00 $1,017.10 $6.25 R4 --------------------------------------------------------------------- Hypothetical* 1.23% $1,000.00 $1,019.00 $6.26 - -------------------------------------------------------------------------------- Actual 0.92% $1,000.00 $1,018.60 $4.68 R5 --------------------------------------------------------------------- Hypothetical* 0.92% $1,000.00 $1,020.57 $4.69 - -------------------------------------------------------------------------------- Actual 1.43% $1,000.00 $1,016.10 $7.27 529A --------------------------------------------------------------------- Hypothetical* 1.43% $1,000.00 $1,018.00 $7.27 - -------------------------------------------------------------------------------- Actual 2.08% $1,000.00 $1,012.40 $10.55 529B --------------------------------------------------------------------- Hypothetical* 2.08% $1,000.00 $1,014.72 $10.56 - -------------------------------------------------------------------------------- Actual 2.08% $1,000.00 $1,012.70 $10.55 529C --------------------------------------------------------------------- Hypothetical* 2.08% $1,000.00 $1,014.72 $10.56 - -------------------------------------------------------------------------------- * 5% class return per year before expenses. ** Expenses paid is equal to each class' annualized expense ratio, as shown above, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year. Expenses paid do not include any applicable sales charges (loads) or redemption fees. If these transaction costs had been included, your costs would have been higher. PORTFOLIO OF INVESTMENTS - 8/31/05 The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Stocks - 97.7% - -------------------------------------------------------------------------------------------------- ISSUER SHARES $ VALUE - -------------------------------------------------------------------------------------------------- Aerospace - 4.9% - -------------------------------------------------------------------------------------------------- Lockheed Martin Corp. 2,499,910 $ 155,594,398 Northrop Grumman Corp. 2,241,240 125,711,152 United Technologies Corp. 1,831,090 91,554,500 -------------- $ 372,860,050 - -------------------------------------------------------------------------------------------------- Alcoholic Beverages - 0.4% - -------------------------------------------------------------------------------------------------- Diageo PLC 2,395,263 $ 34,363,217 - -------------------------------------------------------------------------------------------------- Banks & Credit Companies - 15.6% - -------------------------------------------------------------------------------------------------- American Express Co. 1,471,160 $ 81,266,878 Bank of America Corp.^ 6,980,794 300,383,566 Citigroup, Inc. 5,439,260 238,076,410 Fannie Mae 2,389,700 121,970,288 Freddie Mac 623,640 37,655,383 J.P. Morgan Chase & Co. 540,596 18,320,798 MBNA Corp. 1,500,940 37,823,688 PNC Financial Services Group, Inc.^ 1,773,040 99,698,039 SunTrust Banks, Inc.^ 2,237,030 157,218,468 UBS AG 467,833 38,386,847 Wells Fargo & Co. 1,074,390 64,055,132 -------------- $1,194,855,497 - -------------------------------------------------------------------------------------------------- Broadcast & Cable TV - 2.0% - -------------------------------------------------------------------------------------------------- Time Warner, Inc.^ 831,670 $ 14,903,526 Viacom, Inc., "B" 2,995,563 101,819,186 Walt Disney Co. 1,313,760 33,093,614 -------------- $ 149,816,326 - -------------------------------------------------------------------------------------------------- Brokerage & Asset Managers - 5.3% - -------------------------------------------------------------------------------------------------- Franklin Resources, Inc.^ 402,630 $ 32,387,557 Goldman Sachs Group, Inc. 1,947,000 216,467,460 Lehman Brothers Holdings, Inc.^ 432,270 45,673,648 Mellon Financial Corp. 2,408,440 78,153,878 Merrill Lynch & Co., Inc. 658,510 37,640,432 -------------- $ 410,322,975 - -------------------------------------------------------------------------------------------------- Business Services - 1.6% - -------------------------------------------------------------------------------------------------- Accenture Ltd., "A"^* 4,910,090 $ 119,806,196 - -------------------------------------------------------------------------------------------------- Chemicals - 4.5% - -------------------------------------------------------------------------------------------------- Dow Chemical Co. 1,542,650 $ 66,642,480 E.I. du Pont de Nemours & Co. 2,087,530 82,603,562 Nalco Holding Co.* 1,000,960 18,317,568 PPG Industries, Inc. 1,781,920 112,225,322 Syngenta AG 596,560 63,645,992 -------------- $ 343,434,924 - -------------------------------------------------------------------------------------------------- Computer Software - 0.8% - -------------------------------------------------------------------------------------------------- Oracle Corp.* 2,105,350 $ 27,306,390 Symantec Corp.* 1,716,990 36,022,450 -------------- $ 63,328,840 - -------------------------------------------------------------------------------------------------- Construction - 1.6% - -------------------------------------------------------------------------------------------------- Masco Corp.^ 4,070,700 $ 124,889,076 - -------------------------------------------------------------------------------------------------- Consumer Goods & Services - 1.3% - -------------------------------------------------------------------------------------------------- Kimberly-Clark Corp. 1,585,590 $ 98,813,969 - -------------------------------------------------------------------------------------------------- Containers - 0.2% - -------------------------------------------------------------------------------------------------- Smurfit-Stone Container Corp.* 1,567,770 $ 17,308,181 - -------------------------------------------------------------------------------------------------- Electrical Equipment - 2.1% - -------------------------------------------------------------------------------------------------- Cooper Industries Ltd., "A" 856,660 $ 56,916,490 Emerson Electric Co. 681,930 45,880,250 Tyco International Ltd. 683,870 19,032,102 W.W. Grainger, Inc. 613,850 39,482,832 -------------- $ 161,311,674 - -------------------------------------------------------------------------------------------------- Electronics - 0.4% - -------------------------------------------------------------------------------------------------- Analog Devices, Inc. 935,110 $ 34,084,760 - -------------------------------------------------------------------------------------------------- Energy - Independent - 1.5% - -------------------------------------------------------------------------------------------------- Devon Energy Corp. 965,300 $ 58,661,281 EOG Resources, Inc.^ 901,960 57,572,107 -------------- $ 116,233,388 - -------------------------------------------------------------------------------------------------- Energy - Integrated - 10.1% - -------------------------------------------------------------------------------------------------- Amerada Hess Corp. 93,700 $ 11,909,270 BP PLC, ADR^ 1,532,400 104,785,512 Chevron Corp. 1,162,244 71,361,782 ConocoPhillips 3,653,360 240,902,558 Exxon Mobil Corp. 2,725,940 163,283,806 TOTAL S.A., ADR^ 1,400,850 184,688,064 -------------- $ 776,930,992 - -------------------------------------------------------------------------------------------------- Food & Non-Alcoholic Beverages - 5.0% - -------------------------------------------------------------------------------------------------- Archer Daniels Midland Co.^ 2,631,715 $ 59,239,905 Coca-Cola Co. 445,300 19,593,200 H.J. Heinz Co.^ 1,527,140 54,854,869 Kellogg Co. 2,482,970 112,553,030 Nestle S.A 154,327 43,367,133 PepsiCo, Inc. 835,826 45,845,056 Sara Lee Corp. 2,618,030 49,742,570 -------------- $ 385,195,763 - -------------------------------------------------------------------------------------------------- Forest & Paper Products - 1.2% - -------------------------------------------------------------------------------------------------- Bowater, Inc.^ 574,000 $ 17,811,220 International Paper Co.^ 2,461,330 75,932,031 -------------- $ 93,743,251 - -------------------------------------------------------------------------------------------------- Insurance - 7.1% - -------------------------------------------------------------------------------------------------- AFLAC, Inc. 859,980 $ 37,168,336 Allstate Corp. 2,915,390 163,874,072 Chubb Corp. 458,650 39,884,204 Hartford Financial Services Group, Inc. 938,545 68,560,712 Lincoln National Corp. 466,400 23,128,776 MetLife, Inc. 4,306,040 210,909,839 -------------- $ 543,525,939 - -------------------------------------------------------------------------------------------------- Leisure & Toys - 0.4% - -------------------------------------------------------------------------------------------------- Hasbro, Inc. 1,437,080 $ 29,747,556 - -------------------------------------------------------------------------------------------------- Machinery & Tools - 3.2% - -------------------------------------------------------------------------------------------------- Deere & Co.^ 2,207,396 $ 144,319,551 Finning International, Inc. 276,570 8,986,953 Illinois Tool Works, Inc.^ 796,500 67,129,020 Sandvik AB^ 551,020 24,483,747 -------------- $ 244,919,271 - -------------------------------------------------------------------------------------------------- Medical Equipment - 0.4% - -------------------------------------------------------------------------------------------------- Baxter International, Inc. 789,430 $ 31,837,712 - -------------------------------------------------------------------------------------------------- Network & Telecom - 0.2% - -------------------------------------------------------------------------------------------------- Cisco Systems, Inc.* 1,082,700 $ 19,077,174 - -------------------------------------------------------------------------------------------------- Oil Services - 0.8% - -------------------------------------------------------------------------------------------------- Noble Corp.^ 835,940 $ 59,602,522 - -------------------------------------------------------------------------------------------------- Pharmaceuticals - 6.2% - -------------------------------------------------------------------------------------------------- Abbott Laboratories 1,837,940 $ 82,946,232 Eli Lilly & Co. 291,500 16,038,330 Johnson & Johnson 2,299,390 145,758,332 Merck & Co., Inc. 3,582,000 101,119,860 Novartis AG 233,000 11,326,586 Pfizer, Inc. 888,350 22,626,275 Wyeth 2,092,860 95,832,059 -------------- $ 475,647,674 - -------------------------------------------------------------------------------------------------- Printing & Publishing - 1.4% - -------------------------------------------------------------------------------------------------- Reed Elsevier PLC 5,989,700 $ 56,456,314 Tribune Co. 1,317,514 49,499,001 -------------- $ 105,955,315 - -------------------------------------------------------------------------------------------------- Railroad & Shipping - 1.1% - -------------------------------------------------------------------------------------------------- Burlington Northern Santa Fe Corp. 1,550,890 $ 82,228,188 - -------------------------------------------------------------------------------------------------- Restaurants - 0.5% - -------------------------------------------------------------------------------------------------- McDonald's Corp.^ 1,151,580 $ 37,368,771 - -------------------------------------------------------------------------------------------------- Specialty Chemicals - 1.6% - -------------------------------------------------------------------------------------------------- Air Products & Chemicals, Inc. 1,448,108 $ 80,225,183 L'Air Liquide S.A.^ 127,130 22,154,820 Praxair, Inc. 497,240 24,016,692 -------------- $ 126,396,695 - -------------------------------------------------------------------------------------------------- Specialty Stores - 2.5% - -------------------------------------------------------------------------------------------------- Gap, Inc. 4,436,400 $ 84,335,964 Lowe's Cos., Inc. 812,630 52,260,235 TJX Cos., Inc. 2,490,670 52,079,910 -------------- $ 188,676,109 - -------------------------------------------------------------------------------------------------- Telecommunications - Wireless - 1.5% - -------------------------------------------------------------------------------------------------- Vodafone Group PLC 41,343,720 $ 113,660,923 - -------------------------------------------------------------------------------------------------- Telephone Services - 4.0% - -------------------------------------------------------------------------------------------------- Sprint Nextel Corp. 7,335,140 $ 190,200,180 Verizon Communications, Inc. 3,595,350 117,603,899 -------------- $ 307,804,079 - -------------------------------------------------------------------------------------------------- Tobacco - 3.3% - -------------------------------------------------------------------------------------------------- Altria Group, Inc. 3,583,560 $ 253,357,692 - -------------------------------------------------------------------------------------------------- Trucking - 0.2% - -------------------------------------------------------------------------------------------------- CNF, Inc. 331,870 $ 16,749,479 - -------------------------------------------------------------------------------------------------- Utilities - Electric Power - 4.8% - -------------------------------------------------------------------------------------------------- Dominion Resources, Inc. 2,377,220 $ 181,809,786 Entergy Corp. 426,030 31,913,907 Exelon Corp. 502,220 27,064,636 FPL Group, Inc. 302,910 13,052,392 PPL Corp.^ 1,330,020 42,507,439 Public Service Enterprise Group, Inc.^ 535,180 34,545,869 TXU Corp. 404,950 39,288,249 -------------- $ 370,182,278 - -------------------------------------------------------------------------------------------------- Total Stocks (Identified Cost, $6,255,839,264) $7,504,036,456 - -------------------------------------------------------------------------------------------------- Short-Term Obligation - 0.1% - -------------------------------------------------------------------------------------------------- ISSUER PAR AMOUNT $ VALUE - -------------------------------------------------------------------------------------------------- SBC Communications, Inc., 3.54%, due 9/26/05, at Amortized Cost<@ $ 10,000,000 $ 9,975,417 - -------------------------------------------------------------------------------------------------- Collateral for Securities Loaned - 3.9% - -------------------------------------------------------------------------------------------------- ISSUER SHARES $ VALUE - -------------------------------------------------------------------------------------------------- Navigator Securities Lending Prime Portfolio, at Cost and Net Asset Value 297,589,583 $ 297,589,583 - -------------------------------------------------------------------------------------------------- Repurchase Agreement - 1.8% - -------------------------------------------------------------------------------------------------- ISSUER PAR AMOUNT $ VALUE - -------------------------------------------------------------------------------------------------- Goldman Sachs, 3.56%, dated 8/31/05, due 9/01/05, total to be received $139,211,765 (secured by various U.S. Treasury and Federal Agency obligations in a jointly traded account), at Cost $ 139,198,000 $ 139,198,000 - -------------------------------------------------------------------------------------------------- Total Investments (Identified Cost, $6,702,602,264)(+) $7,950,799,456 - -------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - (3.5)% (271,139,782) - -------------------------------------------------------------------------------------------------- Net Assets - 100.0% $7,679,659,674 - -------------------------------------------------------------------------------------------------- (+) As of August 31, 2005 the fund had nine securities representing $407,845,579 and 5.3% of net assets that were fair valued in accordance with the policies adopted by the Board of Trustees. @ Security exempt from registration under Section 4(2) of the Securities Act of 1933. * Non-income producing security. ^ All or a portion of this security is on loan. < The rate shown represents an annualized yield at time of purchase. Abbreviations: ADR = American Depository Receipt SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statement of Assets and Liabilities This statement represents your fund's balance sheet, which details the assets and liabilities composing the total value of the fund. AT 8/31/05 ASSETS - ------------------------------------------------------------------------------------------------------- Investments, at value, including $290,986,469 of securities on loan (identified cost, $6,702,602,264) $7,950,799,456 Cash 67 Receivable for investments sold 23,051,042 Receivable for fund shares sold 14,307,715 Interest and dividends receivable 21,683,507 - ------------------------------------------------------------------------------------------------------- Total assets $8,009,841,787 - ------------------------------------------------------------------------------------------------------- LIABILITIES - ------------------------------------------------------------------------------------------------------- Payable for investments purchased $15,370,092 Payable for fund shares reacquired 14,230,109 Collateral for securities loaned, at value 297,589,583 Payable to affiliates Management fee 124,797 Shareholder servicing costs 1,824,250 Distribution and service fees 102,242 Administrative services fee 881 Program manager fees 31 Retirement plan administration and services fees 71 Accrued expenses and other liabilities 940,057 - ------------------------------------------------------------------------------------------------------- Total liabilities $330,182,113 - ------------------------------------------------------------------------------------------------------- Net assets $7,679,659,674 - ------------------------------------------------------------------------------------------------------- NET ASSETS CONSIST OF: - ------------------------------------------------------------------------------------------------------- Paid-in capital $6,125,471,089 Unrealized appreciation (depreciation) on investments and translation of assets and liabilities in foreign currencies 1,248,194,609 Accumulated undistributed net realized gain (loss) on investments and foreign currency transactions 288,471,770 Accumulated undistributed net investment income 17,522,206 - ------------------------------------------------------------------------------------------------------- Net assets $7,679,659,674 - ------------------------------------------------------------------------------------------------------- Shares of beneficial interest outstanding 323,013,919 - ------------------------------------------------------------------------------------------------------- Class A shares - ------------------------------------------------------------------------------------------------------- Net assets $4,554,484,392 Shares outstanding 191,302,410 - ------------------------------------------------------------------------------------------------------- Net asset value per share $23.81 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25X$23.81) $25.26 - ------------------------------------------------------------------------------------------------------- Class B shares - ------------------------------------------------------------------------------------------------------- Net assets $1,262,028,623 Shares outstanding 53,339,465 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $23.66 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class C shares - ------------------------------------------------------------------------------------------------------- Net assets $863,486,020 Shares outstanding 36,529,490 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $23.64 - ------------------------------------------------------------------------------------------------------- Class I shares - ------------------------------------------------------------------------------------------------------- Net assets $899,654,308 Shares outstanding 37,631,414 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $23.91 - ------------------------------------------------------------------------------------------------------- Class R shares (formerly Class R1) - ------------------------------------------------------------------------------------------------------- Net assets $85,302,331 Shares outstanding 3,590,331 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $23.76 - ------------------------------------------------------------------------------------------------------- Class R1 shares - ------------------------------------------------------------------------------------------------------- Net assets $573,760 Shares outstanding 24,285 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $23.63 - ------------------------------------------------------------------------------------------------------- Class R2 shares - ------------------------------------------------------------------------------------------------------- Net assets $731,874 Shares outstanding 30,925 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $23.67 - ------------------------------------------------------------------------------------------------------- Class R3 shares (formerly Class R2) - ------------------------------------------------------------------------------------------------------- Net assets $8,316,243 Shares outstanding 350,730 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $23.71 - ------------------------------------------------------------------------------------------------------- Class R4 shares - ------------------------------------------------------------------------------------------------------- Net assets $399,863 Shares outstanding 16,793 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $23.81 - ------------------------------------------------------------------------------------------------------- Class R5 shares - ------------------------------------------------------------------------------------------------------- Net assets $51,331 Shares outstanding 2,154 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $23.83 - ------------------------------------------------------------------------------------------------------- Class 529A shares - ------------------------------------------------------------------------------------------------------- Net assets $2,914,073 Shares outstanding 122,907 - ------------------------------------------------------------------------------------------------------- Net asset value per share $23.71 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25X$23.71) $25.16 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class 529B shares - ------------------------------------------------------------------------------------------------------- Net assets $655,321 Shares outstanding 27,861 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $23.52 - ------------------------------------------------------------------------------------------------------- Class 529C shares - ------------------------------------------------------------------------------------------------------- Net assets $1,061,535 Shares outstanding 45,154 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $23.51 - ------------------------------------------------------------------------------------------------------- On sales of $50,000 or more, the offering price of Class A and Class 529A shares are reduced. A contingent deferred sales charge may be imposed on redemptions of Class A, Class B, Class C, Class 529B, and Class 529C shares. SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statement of Operations This statement describes how much your fund received in investment income and paid in expenses. It also describes any gains and/or losses generated by fund operations. YEAR ENDED 8/31/05 NET INVESTMENT INCOME - ------------------------------------------------------------------------------------------------------- Income Dividends $164,752,823 Interest 4,389,350 Foreign taxes withheld (1,253,119) - ------------------------------------------------------------------------------------------------------- Total investment income $167,889,054 - ------------------------------------------------------------------------------------------------------- Expenses Management fee $42,071,384 Distribution and service fees 35,683,883 Program manager fees 9,425 Shareholder servicing costs 11,868,286 Administrative services fee 396,838 Retirement plan administration and services fees 9,299 Trustees' compensation 107,092 Custodian fee 1,545,203 Printing 254,682 Postage 386,174 Auditing fees 64,325 Legal fees 248,655 Miscellaneous 199,909 - ------------------------------------------------------------------------------------------------------- Total expenses $92,845,155 - ------------------------------------------------------------------------------------------------------- Fees paid indirectly (275,933) Reduction of expenses by investment adviser (32,710) - ------------------------------------------------------------------------------------------------------- Net expenses $92,536,512 - ------------------------------------------------------------------------------------------------------- Net investment income $75,352,542 - ------------------------------------------------------------------------------------------------------- REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS - ------------------------------------------------------------------------------------------------------- Realized gain (loss) (identified cost basis) Investment transactions $376,077,350 Foreign currency transactions (254,475) - ------------------------------------------------------------------------------------------------------- Net realized gain (loss) on investments and foreign currency transactions $375,822,875 - ------------------------------------------------------------------------------------------------------- Change in unrealized appreciation (depreciation) Investments $503,437,521 Translation of assets and liabilities in foreign currencies 2,709 - ------------------------------------------------------------------------------------------------------- Net unrealized gain (loss) on investments and foreign currency translation $503,440,230 - ------------------------------------------------------------------------------------------------------- Net realized and unrealized gain (loss) on investments and foreign currency $879,263,105 - ------------------------------------------------------------------------------------------------------- Change in net assets from operations $954,615,647 - ------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statements of Changes in Net Assets This statement describes the increases and/or decreases in net assets resulting from operations, any distributions, and any shareholder transactions. FOR YEARS ENDED 8/31 2005 2004 CHANGE IN NET ASSETS - ------------------------------------------------------------------------------------------------------- FROM OPERATIONS - ------------------------------------------------------------------------------------------------------- Net investment income $75,352,542 $55,965,886 Net realized gain (loss) on investments and foreign currency transactions 375,822,875 292,885,791 Net unrealized gain (loss) on investments and foreign currency translation 503,440,230 532,786,973 - ------------------------------------------------------------------------------------------------------- Change in net assets from operations $954,615,647 $881,638,650 - ------------------------------------------------------------------------------------------------------- DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------- From net investment income Class A $(46,363,055) $(38,194,792) Class B (7,662,195) (5,722,598) Class C (5,049,720) (3,678,255) Class I (10,452,013) (6,552,178) Class R (695,925) (311,260) Class R1 (235) -- Class R2 (89) -- Class R3 (25,014) (32) Class R4 (145) -- Class R5 (180) -- Class 529A (21,518) (10,857) Class 529B (2,457) (843) Class 529C (3,600) (1,583) - ------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(70,276,146) $(54,472,398) - ------------------------------------------------------------------------------------------------------- Change in net assets from fund share transactions $662,205,274 $236,254,134 - ------------------------------------------------------------------------------------------------------- Redemption fees $15,186 $4,175 - ------------------------------------------------------------------------------------------------------- Total change in net assets $1,546,559,961 $1,063,424,561 - ------------------------------------------------------------------------------------------------------- NET ASSETS - ------------------------------------------------------------------------------------------------------- At beginning of period $6,133,099,713 $5,069,675,152 At end of period (including accumulated undistributed net investment income of $17,522,206 and $12,700,285, respectively) $7,679,659,674 $6,133,099,713 - ------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Financial Highlights The financial highlights table is intended to help you understand the fund's financial performance for the past 5 years (or, if shorter, the period of the fund's operation). Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund (assuming reinvestment of all distributions) held for the entire period. This information has been audited by the fund's independent registered public accounting firm, whose report, together with the fund's financial statements, are included in this report. CLASS A YEARS ENDED 8/31 --------------------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $20.88 $18.03 $17.21 $19.28 $19.38 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------------- Net investment income $0.28 $0.23 $0.24 $0.20 $0.20 Net realized and unrealized gain (loss) on investments and foreign currency 2.91 2.84 0.81 (2.05) 0.44 - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.19 $3.07 $1.05 $(1.85) $0.64 - ----------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.26) $(0.22) $(0.23) $(0.15) $(0.19) From net realized gain on investments and foreign currency transactions -- -- -- (0.07) (0.55) - ----------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.26) $(0.22) $(0.23) $(0.22) $(0.74) - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $23.81 $20.88 $18.03 $17.21 $19.28 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 15.36*** 17.13***+ 6.22 (9.64) 3.19 - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.16 1.18 1.20 1.25 1.21 Expenses after expense reductions## 1.16 1.18 1.20 1.25 1.21 Net investment income 1.23 1.14 1.41 1.05 1.00 Portfolio turnover (%) 24 42 55 48 63 Net assets at end of period (000 Omitted) $4,554,484 $3,527,854 $3,039,085 $1,820,568 $981,373 - ----------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS B YEARS ENDED 8/31 -------------------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $20.77 $17.94 $17.13 $19.19 $19.30 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------------- Net investment income $0.13 $0.10 $0.12 $0.07 $0.07 Net realized and unrealized gain (loss) on investments and foreign currency 2.90 2.83 0.81 (2.02) 0.45 - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.03 $2.93 $0.93 $(1.95) $0.52 - ----------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.14) $(0.10) $(0.12) $(0.04) $(0.08) From net realized gain on investments and foreign currency transactions -- -- -- (0.07) (0.55) - ----------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.14) $(0.10) $(0.12) $(0.11) $(0.63) - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $23.66 $20.77 $17.94 $17.13 $19.19 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 14.61*** 16.35***+ 5.50 (10.20) 2.55 - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.81 1.82 1.85 1.90 1.86 Expenses after expense reductions## 1.81 1.82 1.85 1.90 1.86 Net investment income 0.58 0.49 0.76 0.40 0.35 Portfolio turnover (%) 24 42 55 48 63 Net assets at end of period (000 Omitted) $1,262,029 $1,199,074 $1,069,389 $923,330 $698,338 - ----------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS C YEARS ENDED 8/31 ----------------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $20.75 $17.93 $17.12 $19.18 $19.30 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------------- Net investment income $0.13 $0.10 $0.12 $0.07 $0.07 Net realized and unrealized gain (loss) on investments and foreign currency 2.90 2.82 0.81 (2.02) 0.44 - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.03 $2.92 $0.93 $(1.95) $0.51 - ----------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.14) $(0.10) $(0.12) $(0.04) $(0.08) From net realized gain on investments and foreign currency transactions -- -- -- (0.07) (0.55) - ----------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.14) $(0.10) $(0.12) $(0.11) $(0.63) - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $23.64 $20.75 $17.93 $17.12 $19.18 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 14.63*** 16.32***+ 5.52 (10.21) 2.52 - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.81 1.82 1.85 1.90 1.86 Expenses after expense reductions## 1.81 1.82 1.85 1.90 1.86 Net investment income 0.58 0.49 0.76 0.40 0.35 Portfolio turnover (%) 24 42 55 48 63 Net assets at end of period (000 Omitted) $863,486 $761,669 $648,318 $473,537 $366,154 - ----------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS I YEARS ENDED 8/31 ----------------------------------------------------------------------------------- 2005= 2004= 2003 2002 2001 Net asset value, beginning of period $20.95 $18.10 $17.27 $19.35 $19.47 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------------- Net investment income $0.37 $0.30 $0.30 $0.27 $0.28 Net realized and unrealized gain (loss) on investments and foreign currency 2.91 2.84 0.82 (2.06) 0.44 - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.28 $3.14 $1.12 $(1.79) $0.72 - ----------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.32) $(0.29) $(0.29) $(0.22) $(0.29) From net realized gain on investments and foreign currency transactions -- -- -- (0.07) (0.55) - ----------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.32) $(0.29) $(0.29) $(0.29) $(0.84) - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $23.91 $20.95 $18.10 $17.27 $19.35 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%)& 15.78*** 17.47***+ 6.61 (9.35) 3.58 - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 0.81 0.83 0.85 0.90 0.86 Expenses after expense reductions## 0.81 0.83 0.85 0.90 0.86 Net investment income 1.59 1.50 1.76 1.40 1.35 Portfolio turnover (%) 24 42 55 48 63 Net assets at end of period (000 Omitted) $899,654 $593,364 $296,961 $76,932 $45,849 - ----------------------------------------------------------------------------------------------------------------------------- CLASS R (FORMERLY CLASS R1) YEARS ENDED 8/31 ----------------------------------------------------- 2005= 2004= 2003** Net asset value, beginning of period $20.84 $18.01 $16.53### - -------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - -------------------------------------------------------------------------------------------------------------------- Net investment income $0.25 $0.21 $0.15 Net realized and unrealized gain (loss) on investments and foreign currency 2.90 2.82 1.45 - -------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.15 $3.03 $1.60 - -------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------- From net investment income $(0.23) $(0.20) $(0.12) - -------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $23.76 $20.84 $18.01 - -------------------------------------------------------------------------------------------------------------------- Total return (%)& 15.21*** 16.92***+ 9.76###++ - -------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.31 1.33 1.42+ Expenses after expense reductions## 1.31 1.33 1.42+ Net investment income 1.10 1.02 1.26+ Portfolio turnover (%) 24 42 55 Net assets at end of period (000 Omitted) $85,302 $47,970 $14,583 - -------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R1 CLASS R2 YEAR ENDED YEAR ENDED 8/31/05** 8/31/05** Net asset value, beginning of period $23.17 $23.17 - ------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ------------------------------------------------------------------------------------------------------- Net investment income $0.09 $0.11 Net realized and unrealized gain (loss) on investments and foreign currency 0.42^ 0.43^ - ------------------------------------------------------------------------------------------------------- Total from investment operations $0.51 $0.54 - ------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------- From net investment income $(0.05) $(0.04) - ------------------------------------------------------------------------------------------------------- Net asset value, end of period $23.63 $23.67 - ------------------------------------------------------------------------------------------------------- Total return (%)&*** 2.21++ 2.34++ - ------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.04+ 1.73+ Expenses after expense reductions## 2.04+ 1.73+ Net investment income 0.89+ 1.49+ Portfolio turnover (%) 24 24 Net assets at end of period (000 Omitted) $574 $732 - ------------------------------------------------------------------------------------------------------- CLASS R3 (FORMERLY CLASS R2) YEARS ENDED 8/31 -------------------------------- 2005= 2004=** Net asset value, beginning of period $20.84 $18.73### - ------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ------------------------------------------------------------------------------------------------------- Net investment income $0.21 $0.11 Net realized and unrealized gain (loss) on investments and foreign currency 2.88 2.12 - ------------------------------------------------------------------------------------------------------- Total from investment operations $3.09 $2.23 - ------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------- From net investment income $(0.22) $(0.12) - ------------------------------------------------------------------------------------------------------- Net asset value, end of period $23.71 $20.84 - ------------------------------------------------------------------------------------------------------- Total return (%)&*** 14.91 11.93###+++ - ------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.57 1.59+ Expenses after expense reductions## 1.57 1.59+ Net investment income 0.93 0.80+ Portfolio turnover (%) 24 42 Net assets at end of period (000 Omitted) $8,316 $414 - ------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R4 CLASS R5 YEAR ENDED YEAR ENDED 8/31/05** 8/31/05** Net asset value, beginning of period $23.29 $23.29 - ------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ------------------------------------------------------------------------------------------------------- Net investment income $0.15 $0.15 Net realized and unrealized gain (loss) on investments and foreign currency 0.44^ 0.47^ - ------------------------------------------------------------------------------------------------------- Total from investment operations $0.59 $0.62 - ------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------- From net investment income $(0.07) $(0.08) - ------------------------------------------------------------------------------------------------------- Net asset value, end of period $23.81 $23.83 - ------------------------------------------------------------------------------------------------------- Total return (%)&*** 2.53++ 2.68++ - ------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.23+ 0.92+ Expenses after expense reductions## 1.23+ 0.92+ Net investment income 1.94+ 1.57+ Portfolio turnover (%) 24 24 Net assets at end of period (000 Omitted) $400 $51 - ------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529A YEARS ENDED 8/31 ------------------------------------------------------------------ 2005= 2004= 2003 2002** Net asset value, beginning of period $20.80 $18.00 $17.21 $16.84### - ------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ------------------------------------------------------------------------------------------------------------------------- Net investment income $0.23 $0.18 $0.20 $0.03 Net realized and unrealized gain (loss) on investments and foreign currency 2.90 2.80 0.81 0.34 - ------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.13 $2.98 $1.01 $0.37 - ------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.22) $(0.18) $(0.22) $-- - ------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $23.71 $20.80 $18.00 $17.21 - ------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 15.09*** 16.63***+ 5.98 2.20###++ - ------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.41 1.43 1.48 1.50+ Expenses after expense reductions## 1.41 1.43 1.48 1.50+ Net investment income 0.99 0.91 1.20 2.23+ Portfolio turnover (%) 24 42 55 48 Net assets at end of period (000 Omitted) $2,914 $1,673 $806 $10 - ------------------------------------------------------------------------------------------------------------------------- CLASS 529B YEARS ENDED 8/31 ------------------------------------------------------------------ 2005= 2004= 2003 2002** Net asset value, beginning of period $20.67 $17.87 $17.12 $16.76### - ------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ------------------------------------------------------------------------------------------------------------------------- Net investment income $0.08 $0.05 $0.09 $0.02 Net realized and unrealized gain (loss) on investments and foreign currency 2.87 2.81 0.80 0.34 - ------------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.95 $2.86 $0.89 $0.36 - ------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.10) $(0.06) $(0.14) $-- - ------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $23.52 $20.67 $17.87 $17.12 - ------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 14.32*** 16.03***+ 5.29 2.15###++ - ------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.06 2.07 2.13 2.15+ Expenses after expense reductions## 2.06 2.07 2.13 2.15+ Net investment income 0.34 0.27 0.52 1.33+ Portfolio turnover (%) 24 42 55 48 Net assets at end of period (000 Omitted) $655 $439 $181 $6 - ------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529C YEARS ENDED 8/31 ------------------------------------------------------------------ 2005= 2004= 2003 2002** Net asset value, beginning of period $20.66 $17.86 $17.11 $16.75### - ------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ------------------------------------------------------------------------------------------------------------------------- Net investment income $0.08 $0.05 $0.09 $0.02 Net realized and unrealized gain (loss) on investments and foreign currency 2.87 2.81 0.80 0.34 - ------------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.95 $2.86 $0.89 $0.36 - ------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.10) $(0.06) $(0.14) $-- - ------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $23.51 $20.66 $17.86 $17.11 - ------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)& 14.32*** 16.03***+ 5.31 2.15###++ - ------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.06 2.07 2.13 2.15+ Expenses after expense reductions## 2.06 2.07 2.13 2.15+ Net investment income 0.36 0.26 0.55 1.75+ Portfolio turnover (%) 24 42 55 48 Net assets at end of period (000 Omitted) $1,062 $643 $352 $21 - ------------------------------------------------------------------------------------------------------------------------- ** For the period from the class' inception, December 31, 2002 (Class R), July 31, 2002 (Classes 529A, 529B, and 529C), October 31, 2003 (Class R3) and April 1, 2005 (Classes R1, R2, R4, and R5) through the stated period end. *** Certain expenses have been reduced without which performance would have been lower. + Annualized. ++ Not annualized. # Per share data are based on average shares outstanding. ## Ratios do not reflect reductions from fees paid indirectly. ### The net asset values and total returns previously reported as $16.52 and 9.82% (Class R), $18.80 and 11.52% (Class R3), $17.01 and 1.18% (Class 529A), $16.93 and 1.12% (Class 529B), and $16.92 and 1.12% (Class 529C), respectively, have been revised to reflect the net asset value from the day prior to the class' inception date. The net asset values and total returns previously reported were from inception date, the date the share classes were first available to public shareholders. ^ The per share amount is not in accordance with the net realized and unrealized gain/loss for the period because of the timing of sales of fund shares and the amount of per share realized and unrealized gains and losses at such time. + The fund's net asset value and total return calculation include a non-recurring accrual recorded as a result of an administrative proceeding regarding disclosure of brokerage allocation practices in connection with fund sales. The non-recurring accrual did not have a material impact on the net asset value per share based on the shares outstanding on the day the proceeds were recorded. (+) Total returns do not include any applicable sales charges. & From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. = Redemption fees charged by the fund during this period resulted in a per share impact of less than $0.01. SEE NOTES TO FINANCIAL STATEMENTS NOTES TO FINANCIAL STATEMENTS (1) BUSINESS AND ORGANIZATION MFS Value Fund (the fund) is a diversified series of MFS Series Trust I (the trust). The trust is organized as a Massachusetts business trust and is registered under the Investment Company Act of 1940, as amended, as an open- end management investment company. (2) SIGNIFICANT ACCOUNTING POLICIES GENERAL - The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The fund can invest in foreign securities. Investments in foreign securities are vulnerable to the effects of changes in the relative values of the local currency and the U.S. dollar and to the effects of changes in each country's legal, political, and economic environment. INVESTMENT VALUATIONS - Equity securities in the fund's portfolio for which market quotations are available are valued at the last sale or official closing price as reported by an independent pricing service on the primary market or exchange on which they are primarily traded, or at the last quoted bid price for securities in which there were no sales during the day. Equity securities traded over the counter are valued at the last sales price traded each day as reported by an independent pricing service, or to the extent there are no sales reported, such securities are valued on the basis of quotations obtained from brokers and dealers. Short-term obligations with a remaining maturity in excess of 60 days will be valued upon dealer-supplied valuations. All other short-term obligations in the fund's portfolio are valued at amortized cost, which approximates market value as determined by the Board of Trustees. Money market mutual funds are valued at net asset value. Investment valuations, other assets, and liabilities initially expressed in foreign currencies are converted each business day into U.S. dollars based upon current exchange rates. When pricing service information or market quotations are not readily available, securities are priced at fair value as determined under the direction of the Board of Trustees. For example, significant events (such as movement in the U.S. securities market, or other regional and local developments) may occur between the time that foreign markets close (where the security is principally traded) and the time that the fund calculates its net asset value (generally, the close of the NYSE) that may impact the value of securities traded in these foreign markets. In these cases, the fund may utilize information from an external vendor or other sources to adjust closing market quotations of foreign equity securities to reflect what it believes to be the fair value of the securities as of the fund's valuation time. Because the frequency of significant events is not predictable, fair valuation of foreign equity securities may occur on a frequent basis. REPURCHASE AGREEMENTS - The fund may enter into repurchase agreements with institutions that the fund's investment adviser has determined are creditworthy. Each repurchase agreement is recorded at cost. The fund requires that the securities collateral in a repurchase transaction be transferred to the custodian in a manner sufficient to enable the fund to obtain those securities in the event of a default under the repurchase agreement. The fund monitors, on a daily basis, the value of the collateral to ensure that its value, including accrued interest, is greater than amounts owed to the fund under each such repurchase agreement. The fund, along with other affiliated entities of Massachusetts Financial Services Company (MFS), may utilize a joint trading account for the purpose of entering into one or more repurchase agreements. FOREIGN CURRENCY TRANSLATION - Purchases and sales of foreign investments, income, and expenses are converted into U.S. dollars based upon currency exchange rates prevailing on the respective dates of such transactions. Gains and losses attributable to foreign currency exchange rates on sales of securities are recorded for financial statement purposes as net realized gains and losses on investments. Gains and losses attributable to foreign exchange rate movements on income and expenses are recorded for financial statement purposes as foreign currency transaction gains and losses. That portion of both realized and unrealized gains and losses on investments that results from fluctuations in foreign currency exchange rates is not separately disclosed. SECURITY LOANS - State Street Bank and Trust Company ("State Street"), as lending agent, may loan the securities of the fund to certain qualified institutions (the "Borrowers") approved by the fund. The loans are collateralized at all times by cash and/or U.S. Treasury securities in an amount at least equal to the market value of the securities loaned. State Street provides the fund with indemnification against Borrower default. The fund bears the risk of loss with respect to the investment of cash collateral. On loans collateralized by cash, the cash collateral is invested in a money market fund or short-term securities. A portion of the income generated upon investment of the collateral is remitted to the Borrowers, and the remainder is allocated between the fund and the lending agent. On loans collateralized by U.S. Treasury securities, a fee is received from the Borrower, and is allocated between the fund and the lending agent. Income from securities lending is included in interest income on the Statement of Operations. The dividend and interest income earned on the securities loaned is accounted for in the same manner as other dividend and interest income. SHORT TERM FEES - For purchases made on or after July 1, 2004 and before April 1, 2005, the fund will charge a 2% redemption fee (which is retained by the fund) on proceeds from Class A, Class B, Class C, and Class I shares redeemed or exchanged within 5 business days following their acquisition (either by purchase or exchange). Effective April 1, 2005, the fund will no longer charge a redemption fee. See the fund's prospectus for details. Any redemption fees charged are accounted for as an addition to paid-in capital. INVESTMENT TRANSACTIONS AND INCOME - Investment transactions are recorded on the trade date. Interest income is recorded on the accrual basis. All premium and discount is amortized or accreted for financial statement purposes in accordance with U.S. generally accepted accounting principles. All discount is accreted for tax reporting purposes as required by federal income tax regulations. Dividends received in cash are recorded on the ex-dividend date. Dividend and interest payments received in additional securities are recorded on the ex-dividend or ex-interest date in an amount equal to the value of the security on such date. The fund may receive proceeds from litigation settlements involving its portfolio holdings. Any proceeds received are reflected in realized gain/loss in the Statement of Operations, or in unrealized gain/loss if the security is still held by the fund. FEES PAID INDIRECTLY - The fund's custody fee is reduced according to an arrangement that measures the value of cash deposited with the custodian by the fund. During the year ended August 31, 2005, the fund's custodian fees were reduced by $202,689 under this arrangement. The fund has entered into a commission recapture agreement, under which certain brokers will credit the fund a portion of the commissions generated, to offset certain expenses of the fund. For the year ended August 31, 2005, the fund's miscellaneous expenses were reduced by $73,244 under this agreement. These amounts are shown as a reduction of total expenses on the Statement of Operations. TAX MATTERS AND DISTRIBUTIONS - The fund's policy is to comply with the provisions of the Internal Revenue Code (the Code) applicable to regulated investment companies and to distribute to shareholders all of its net taxable income, including any net realized gain on investments. Accordingly, no provision for federal income or excise tax is provided. Distributions to shareholders are recorded on the ex-dividend date. The fund distinguishes between distributions on a tax basis and a financial reporting basis and only distributions in excess of tax basis earnings and profits are reported in the financial statements as distributions from paid-in capital. Differences in the recognition or classification of income between the financial statements and tax earnings and profits, which result in temporary over-distributions for financial statement purposes, are classified as distributions in excess of net investment income or net realized gains. Common types of book and tax differences that could occur include differences in accounting for foreign currency transactions, treating a portion of the proceeds from redemptions as a distribution from realized gains for tax purposes and wash sales. The tax character of distributions declared for the years ended August 31, 2005 and August 31, 2004 was as follows: 8/31/05 8/31/04 Distributions declared from ordinary income $70,276,146 $54,471,492 During the year ended August 31, 2005 accumulated undistributed net investment income decreased by $254,475, accumulated undistributed net realized gain on investments and foreign currency transactions decreased by $12,188,401, and paid-in capital increased by $12,442,876 due to differences between book and tax accounting for foreign currency transactions and treating a portion of the proceeds from redemptions as a distribution from realized gains for tax purposes. This change had no effect on the net assets or net asset value per share. As of August 31, 2005, the components of distributable earnings (accumulated losses) on a tax basis were as follows: Undistributed ordinary income $17,533,434 Undistributed long-term capital gain 310,751,096 Unrealized appreciation (depreciation) 1,225,917,866 Other temporary differences (13,811) MULTIPLE CLASSES OF SHARES OF BENEFICIAL INTEREST - The fund offers multiple classes of shares, which differ in their respective distribution and service fees. All shareholders bear the common expenses of the fund based on daily net assets of each class, without distinction between share classes. Dividends are declared separately for each class. Differences in per share dividend rates are generally due to differences in separate class expenses. Class B and Class 529B shares will convert to Class A and Class 529A shares, respectively, approximately eight years after purchase. (3) TRANSACTIONS WITH AFFILIATES INVESTMENT ADVISER - The fund has an investment advisory agreement with MFS to provide overall investment advisory and administrative services, and general office facilities. The management fee is computed daily and paid monthly at the following annual rates: First $7.5 billion of average daily net assets 0.60% Average daily net assets in excess of $7.5 billion 0.55% This reduction in the management fee may be rescinded by MFS only with the approval of the fund's Board of Trustees. The management fee incurred for the year ended August 31, 2005 was equivalent to an annual effective rate of 0.60% of the fund's average daily net assets. DISTRIBUTOR - MFS Fund Distributors, Inc. (MFD), a wholly owned subsidiary of MFS, as distributor, received $498,917 and $3,146 for the year ended August 31, 2005, as its portion of the initial sales charge on sales of Class A and Class 529A shares of the fund, respectively. The Board of Trustees has adopted a distribution plan for certain class shares pursuant to Rule 12b-1 of the Investment Company Act of 1940. The fund's distribution plan provides that the fund will pay MFD for services provided by MFD and financial intermediaries in connection with the distribution and servicing of certain share classes. One component of the plan is a distribution fee paid to and retained by MFD. Another component of the plan is a service fee paid to MFD which subsequently pays a portion of this fee to financial intermediaries that enter into sales or service agreements with MFD, or its affiliates, based on the average daily net assets of accounts attributable to such intermediaries. Distribution Fee Plan Table: TOTAL ANNUAL SERVICE FEE DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE RETAINED AND SERVICE FEE RATE FEE RATE PLAN(1) RATE(2) BY MFD(3) FEE Class A 0.10% 0.25% 0.35% 0.35% $359,271 $14,267,458 Class B 0.75% 0.25% 1.00% 1.00% 5,071 12,710,052 Class C 0.75% 0.25% 1.00% 1.00% 9,016 8,313,864 Class R 0.25% 0.25% 0.50% 0.50% 271 352,225 Class R1 0.50% 0.25% 0.75% 0.75% 92 597 Class R2 0.25% 0.25% 0.50% 0.50% 61 366 Class R3 0.25% 0.25% 0.50% 0.50% 23 17,092 Class R4 N/A 0.25% 0.25% 0.25% 31 136 Class 529A 0.25% 0.25% 0.50% 0.35% 986 8,404 Class 529B 0.75% 0.25% 1.00% 1.00% 15 5,563 Class 529C 0.75% 0.25% 1.00% 1.00% 69 8,126 - ----------------------------------------------------------------------------------------------------------------------------- Total Distribution and Service Fees $35,683,883 (1) In accordance with the distribution plan for certain classes, the fund pays distribution and/or service fees up to these annual percentage rates of each class' average daily net assets. (2) The annual effective rates represent actual fees incurred under the distribution plan for the year ended August 31, 2005 based on each class' average daily net assets. 0.10% of the Class 529A distribution fee is currently being paid by the fund. Payment of the remaining 0.15% of the Class 529A distribution fee is not yet implemented and will commence on such date as the fund's Board of Trustees may determine. (3) For the year ended August 31, 2005, MFD retained these service fees. Certain Class A, Class C and Class 529C shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within 12 months following the purchase. Class B and Class 529B shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within six years of purchase. MFD retained all contingent deferred sales charges. Contingent deferred sales charges imposed during the year ended August 31, 2005 were as follows: AMOUNT Class A $83,465 Class B $2,161,202 Class C $72,958 Class 529B $106 Class 529C $-- The fund has entered into and may from time to time enter into contracts with program managers and other parties which administer the tuition programs through which an investment in the fund's 529 share classes is made. The fund has entered into an agreement with MFD pursuant to which MFD receives an annual fee of up to 0.35% from the fund based solely upon the value of the fund's 529 share classes attributable to tuition programs to which MFD, or a third party which contracts with MFD, provides administrative services. The current fee has been established at 0.25% annually of average net assets of the fund's 529 share classes. The fee may only be increased with the approval of the Board of Trustees who oversees the fund. The services provided by MFD, or a third party with which MFD contracts, include recordkeeping and tax reporting and account services, as well as services designed to maintain the program's compliance with the Internal Revenue Code and other regulatory requirements. Program manager fees for the year ended August 31, 2005, were as follows: AMOUNT Class 529A $6,003 Class 529B 1,391 Class 529C 2,031 ------------------------------------------------------- Total Program Manager Fees $9,425 SHAREHOLDER SERVICING AGENT - The fund pays a portion of shareholder servicing costs to MFSC, a wholly-owned subsidiary of MFS. MFS Service Center, Inc. (MFSC) receives a fee from the fund, for its services as shareholder servicing agent, set periodically under the supervision of the fund's Board of Trustees. For the year ended August 31, 2005, the fee was $7,296,388, which equated to 0.1041% annually of the fund's average daily net assets. MFSC also receives payment from the fund for out-of-pocket and sub-accounting expenses paid by MFSC on behalf of the fund. For the year ended August 31, 2005, these costs amounted to $2,744,142. ADMINISTRATOR - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to certain funds for which MFS acts as investment adviser. Under an administrative services agreement, the funds may partially reimburse MFS the costs incurred to provide these services, subject to review and approval by the Board of Trustees. Each fund is charged a fixed amount plus a fee based on calendar year average net assets. Effective July 1, 2005, the fund's annual fixed amount is $10,000. The administrative services fee incurred for the year ended August 31, 2005 was equivalent to an annual effective rate of 0.0057% of the fund's average daily net assets. In addition to the administrative services provided by MFS to the fund as described above, MFS is responsible for providing certain retirement plan administration and services with respect to certain Class R shares. These services include various administrative, recordkeeping, and communication/ educational services with respect to the retirement plans which invest in these shares, and may be provided directly by MFS or by a third party. For the year ended August 31, 2005, the fund paid an annual retirement plan administration and services fee up to the following annual percentage rates of each class' average daily net assets: AMOUNT FEE TOTAL RETAINED RATE AMOUNT BY MFS Class R1 0.45% $358 $273 Class R2 0.40% 292 215 Class R3 (formerly Class R2) 0.25% 8,546 4,898 Class R4 0.15% 82 26 Class R5 0.10% 21 19 - ------------------------------------------------------------------------------ Total Retirement Plan Administration and Services Fees $9,299 $5,431 TRUSTEES' COMPENSATION - The fund pays compensation to Independent Trustees in the form of a retainer, attendance fees, and additional compensation to Board and Committee chairpersons. The fund does not pay compensation directly to Trustees who are officers of the investment adviser, or to officers of the fund, all of whom receive remuneration for their services to the fund from MFS. Certain officers and Trustees of the fund are officers or directors of MFS, MFD, and MFSC. The fund has an unfunded, defined benefit plan for retired Independent Trustees which resulted in a pension expense of $1,235. This amount is included in Trustees' compensation for the year ended August 31, 2005. OTHER - This fund and certain other MFS funds (the funds) have entered into a services agreement (the Agreement) which provides for payment of fees by the funds to Tarantino LLC in return for the provision of services of an Independent Chief Compliance Officer (ICCO) for the funds. The ICCO is an officer of the funds and the sole member of Tarantino LLC. MFS has agreed to reimburse the fund for a portion of the payments made by the funds to Tarantino LLC in the amount of $32,710 which is shown as a reduction of total expenses in the Statement of Operations. Additionally, MFS has agreed to bear all expenses associated with office space, other administrative support, and supplies provided to the ICCO. The funds can terminate the Agreement with Tarantino LLC at any time under the terms of the Agreement. The fund's investment adviser, MFS, was the subject of an administrative proceeding regarding disclosure of brokerage allocation practices in connection with fund sales. As a result, proceeds in the amount of $1,390,632 were paid to the fund on February 16, 2005. (4) PORTFOLIO SECURITIES Purchases and sales of investments, other than U.S. government securities, purchased option transactions, and short-term obligations, aggregated $2,275,940,339 and $1,630,100,863, respectively. The cost and unrealized appreciation and depreciation in the value of the investments owned by the fund as computed on a federal income tax basis, are as follows: Aggregate cost $6,724,881,590 ------------------------------------------------------------ Gross unrealized appreciation $1,416,762,154 Gross unrealized depreciation (190,844,288) ------------------------------------------------------------ Net unrealized appreciation (depreciation) $1,225,917,866 (5) SHARES OF BENEFICIAL INTEREST The fund's Declaration of Trust permits the Trustees to issue an unlimited number of full and fractional shares of beneficial interest. Transactions in fund shares were as follows: Year ended 8/31/05 Year ended 8/31/04 SHARES AMOUNT SHARES AMOUNT CLASS A SHARES Shares sold 67,622,518 $1,551,532,325 68,232,846 $1,362,862,519 Shares issued to shareholders in reinvestment of distributions 1,675,437 37,750,899 1,607,195 31,479,055 Shares reacquired (46,979,425) (1,074,415,928) (69,376,970) (1,396,340,338) - ------------------------------------------------------------------------------------------------------------ Net change 22,318,530 $514,867,296 463,071 $(1,998,764) CLASS B SHARES Shares sold 7,612,220 $172,399,903 10,609,786 $210,964,746 Shares issued to shareholders in reinvestment of distributions 274,776 6,154,187 235,102 4,573,746 Shares reacquired (12,281,886) (279,614,054) (12,715,831) (254,097,701) - ------------------------------------------------------------------------------------------------------------ Net change (4,394,890) $(101,059,964) (1,870,943) $(38,559,209) CLASS C SHARES Shares sold 6,816,382 $154,637,648 9,335,624 $184,215,208 Shares issued to shareholders in reinvestment of distributions 143,635 3,216,693 120,898 2,350,259 Shares reacquired (7,135,699) (161,831,639) (8,914,773) (179,025,392) - ------------------------------------------------------------------------------------------------------------ Net change (175,682) $(3,977,298) 541,749 $7,540,075 CLASS I SHARES Shares sold 10,315,188 $235,628,710 14,195,841 $284,193,397 Shares issued to shareholders in reinvestment of distributions 445,520 10,091,634 310,207 6,162,008 Shares reacquired (1,453,062) (33,305,489) (2,592,198) (52,439,449) - ------------------------------------------------------------------------------------------------------------ Net change 9,307,646 $212,414,855 11,913,850 $237,915,956 CLASS R SHARES (FORMERLY CLASS R1) Shares sold 2,089,842 $47,454,343 2,778,893 $55,557,730 Shares issued to shareholders in reinvestment of distributions 28,217 638,219 14,631 292,053 Shares reacquired (829,372) (19,020,335) (1,301,372) (26,054,689) - ------------------------------------------------------------------------------------------------------------ Net change 1,288,687 $29,072,227 1,492,152 $29,795,094 Period ended 8/31/05** SHARES AMOUNT CLASS R1 SHARES Shares sold 24,912 $587,129 Shares issued to shareholders in reinvestment of distributions 10 235 Shares reacquired (637) (15,038) - ------------------------------------------------------------------------- Net change 24,285 $572,326 CLASS R2 SHARES Shares sold 31,006 $733,871 Shares issued to shareholders in reinvestment of distributions 4 89 Shares reacquired (85) (1,994) - ------------------------------------------------------------------------- Net change 30,925 $731,966 Year ended 8/31/05 Period ended 8/31/04* SHARES AMOUNT SHARES AMOUNT CLASS R3 SHARES (FORMERLY CLASS R2) Shares sold 427,084 $9,909,445 37,734 $762,333 Shares issued to shareholders in reinvestment of distributions 1,089 25,006 2 32 Shares reacquired (97,308) (2,238,363) (17,871) (360,775) - ------------------------------------------------------------------------------------------------------------ Net change 330,865 $7,696,088 19,865 $401,590 Period ended 8/31/05** SHARES AMOUNT CLASS R4 SHARES Shares sold 16,787 $398,880 Shares issued to shareholders in reinvestment of distributions 6 145 - ------------------------------------------------------------------------- Net change 16,793 $399,025 CLASS R5 SHARES Shares sold 2,147 $50,000 Shares issued to shareholders in reinvestment of distributions 7 180 - ------------------------------------------------------------------------- Net change 2,154 $50,180 Year ended 8/31/05 Year ended 8/31/04 SHARES AMOUNT SHARES AMOUNT CLASS 529A SHARES Shares sold 59,455 $1,361,336 37,997 $768,227 Shares issued to shareholders in reinvestment of distributions 951 21,439 549 10,840 Shares reacquired (17,903) (414,122) (2,961) (60,562) - ------------------------------------------------------------------------------------------------------------ Net change 42,503 $968,653 35,585 $718,505 CLASS 529B SHARES Shares sold 8,352 $188,972 12,295 $245,830 Shares issued to shareholders in reinvestment of distributions 110 2,457 43 843 Shares reacquired (1,826) (43,149) (1,231) (25,198) - ------------------------------------------------------------------------------------------------------------ Net change 6,636 $148,280 11,107 $221,475 CLASS 529C SHARES Shares sold 16,465 $377,276 16,679 $325,595 Shares issued to shareholders in reinvestment of distributions 161 3,597 82 1,583 Shares reacquired (2,618) (59,233) (5,336) (107,766) - ------------------------------------------------------------------------------------------------------------ Net change 14,008 $321,640 11,425 $219,412 * For the period from the inception of Class R3 shares, October 31, 2003, through August 31, 2004. ** For the period from the inception of Class R1, Class R2, Class R4, and Class R5 shares, April 1, 2005, through August 31, 2005. The fund is one of several mutual funds in which the MFS fund-of-funds may invest. The MFS fund-of-funds do not invest in the underlying MFS funds for the purpose of exercising management or control. At the end of the period, the MFS Aggressive Growth Allocation Fund, MFS Conservative Allocation Fund, MFS Growth Allocation Fund, and MFS Moderate Allocation Fund were the owners of record of approximately 2%, 1%, 3%, and 3% respectively, of the value of outstanding voting shares. (6) LINE OF CREDIT The fund and other affiliated funds participate in a $1 billion unsecured line of credit provided by a syndication of banks under a credit agreement. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its borrowings, at a rate equal to the Federal Reserve funds rate plus 0.35%. In addition, a commitment fee, based on the average daily, unused portion of the line of credit, is allocated among the participating funds at the end of each calendar quarter. The commitment fee allocated to the fund for the year ended August 31, 2005 was $47,617, and is included in miscellaneous expense. The fund had no significant borrowings during the year ended August 31, 2005. REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Trustees of MFS Series Trust I and Shareholders of MFS Value Fund: We have audited the accompanying statement of assets and liabilities of MFS Value Fund (the Fund) (one of the portfolios comprising MFS Series Trust I), including the portfolio of investments, as of August 31, 2005, and the related statement of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the periods indicated therein. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. We were not engaged to perform an audit of the Fund's internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of August 31, 2005, by correspondence with the custodian and brokers or by other appropriate auditing procedures where replies from brokers were not received. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of MFS Value Fund at August 31, 2005, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and its financial highlights for each of the periods indicated therein, in conformity with U.S. generally accepted accounting principles. /s/ ERNST & YOUNG LLP Boston, Massachusetts October 11, 2005 RESULTS OF SHAREHOLDER MEETING (unaudited) - 8/31/05 At a special meeting of shareholders of MFS Series Trust I, which was held on March 23, 2005, the following actions were taken: ITEM 1. To elect a Board of Trustees: NUMBER OF DOLLARS ---------------------------------------------- NOMINEE AFFIRMATIVE WITHHOLD AUTHORITY Lawrence H. Cohn, M.D. $8,025,286,508.56 $117,939,292.78 - --------------------------------------------------------------------------- David H. Gunning 8,030,402,677.64 112,823,123.70 - --------------------------------------------------------------------------- William R. Gutow 8,027,523,726.27 115,702,075.07 - --------------------------------------------------------------------------- Michael Hegarty 8,021,162,525.49 122,063,275.85 - --------------------------------------------------------------------------- J. Atwood Ives 8,024,062,680.07 119,163,121.27 - --------------------------------------------------------------------------- Amy B. Lane 8,019,792,882.59 123,432,918.75 - --------------------------------------------------------------------------- Robert J. Manning 8,030,980,361.78 112,245,439.56 - --------------------------------------------------------------------------- Lawrence T. Perara 8,025,935,401.12 117,290,400.22 - --------------------------------------------------------------------------- Robert C. Pozen 8,031,655,470.25 111,570,331.09 - --------------------------------------------------------------------------- J. Dale Sherratt 8,027,226,595.42 115,999,205.92 - --------------------------------------------------------------------------- Laurie J. Thomsen 8,019,388,506.87 123,837,294.47 - --------------------------------------------------------------------------- TRUSTEES AND OFFICERS -- IDENTIFICATION AND BACKGROUND The Trustees and officers of the Trust, as of October 1, 2005, are listed below, together with their principal occupations during the past five years. (Their titles may have varied during that period.) The address of each Trustee and officer is 500 Boylston Street, Boston, Massachusetts 02116. PRINCIPAL OCCUPATIONS DURING POSITION(s) HELD TRUSTEE/OFFICER THE PAST FIVE YEARS & NAME, DATE OF BIRTH WITH FUND SINCE(1) OTHER DIRECTORSHIPS(2) - ------------------- ---------------- --------------- ----------------------------- INTERESTED TRUSTEES Robert J. Manning(3) Trustee and February 2004 Massachusetts Financial Services (born 10/20/63) President Company, Chief Executive Officer, President, Chief Investment Officer and Director Robert C. Pozen(3) Trustee February 2004 Massachusetts Financial Services (born 08/08/46) Company, Chairman (since February 2004); Harvard Law School (education), John Olin Visiting Professor (since July 2002); Secretary of Economic Affairs, The Commonwealth of Massachusetts (January 2002 to December 2002); Fidelity Investments, Vice Chairman (June 2000 to December 2001); Fidelity Management & Research Company (investment adviser), President (March 1997 to July 2001); Bell Canada Enterprises (telecommunications), Director; Medtronic, Inc. (medical technology), Director; Telesat (satellite communications), Director INDEPENDENT TRUSTEES J. Atwood Ives Trustee and Chair February 1992 Private investor; Eastern (born 05/01/36) of Trustees Enterprises (diversified services company), Chairman, Trustee and Chief Executive Officer (until November 2000) Lawrence H. Cohn, M.D. Trustee August 1993 Brigham and Women's Hospital, (born 03/11/37) Chief of Cardiac Surgery; Harvard Medical School, Professor of Surgery David H. Gunning Trustee January 2004 Cleveland-Cliffs Inc. (mining (born 05/30/42) products and service provider), Vice Chairman/Director (since April 2001); Encinitos Ventures (private investment company), Principal (1997 to April 2001); Lincoln Electric Holdings, Inc. (welding equipment manufacturer), Director William R. Gutow Trustee December 1993 Private investor and real estate (born 09/27/41) consultant; Capitol Entertainment Management Company (video franchise), Vice Chairman Michael Hegarty Trustee December 2004 Retired; AXA Financial (financial (born 12/21/44) services and insurance), Vice Chairman and Chief Operating Officer (until May 2001); The Equitable Life Assurance Society (insurance), President and Chief Operating Officer (until May 2001) Amy B. Lane Trustee January 2004 Retired; Merrill Lynch & Co., (born 02/08/53) Inc., Managing Director, Investment Banking Group (1997 to February 2001); Borders Group, Inc. (book and music retailer), Director; Federal Realty Investment Trust (real estate investment trust), Trustee Lawrence T. Perera Trustee July 1981 Hemenway & Barnes (attorneys), (born 06/23/35) Partner J. Dale Sherratt Trustee August 1993 Insight Resources, Inc. (born 09/23/38) (acquisition planning specialists), President; Wellfleet Investments (investor in health care companies), Managing General Partner (since 1993); Cambridge Nutraceuticals (professional nutritional products), Chief Executive Officer (until May 2001) Laurie J. Thomsen Trustee March 2005 Private investor; Prism Venture (born 08/05/57) Partners (venture capital), Co- founder and General Partner (until June 2004); St. Paul Travelers Companies (commercial property liability insurance), Director OFFICERS Robert J. Manning(3) President and February 2004 Massachusetts Financial Services (born 10/20/63) Trustee Company, Chief Executive Officer, President, Chief Investment Officer and Director Tracy Atkinson(3) Treasurer September 2005 Massachusetts Financial Services (born 12/30/64) Company, Senior Vice President (since September 2004); PricewaterhouseCoopers LLP, Partner (prior to September 2004) Christopher R. Bohane(3) Assistant July 2005 Massachusetts Financial Services (born 1/18/74) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since April 2003); Kirkpatrick & Lockhart LLP (law firm), Associate (prior to April 2003); Nvest Services Company, Assistant Vice President and Associate Counsel (prior to January 2001) Jeffrey N. Carp(3) Secretary and September 2004 Massachusetts Financial Services (born 12/01/56) Clerk Company, Executive Vice President, General Counsel and Secretary (since April 2004); Hale and Dorr LLP (law firm), Partner (prior to April 2004) Ethan D. Corey(3) Assistant July 2005 Massachusetts Financial Services (born 11/21/63) Secretary and Company, Special Counsel (since Assistant Clerk December 2004); Dechert LLP (law firm), Counsel (prior to December 2004) Stephanie A. DeSisto(3) Assistant May 2003 Massachusetts Financial Services (born 10/01/53) Treasurer Company, Vice President (since April 2003); Brown Brothers Harriman & Co., Senior Vice President (November 2002 to April 2003); ING Groep N.V./Aeltus Investment Management, Senior Vice President (prior to November 2002) David L. DiLorenzo(3) Assistant July 2005 Massachusetts Financial Services (born 8/10/68) Treasurer Company, Vice President (since June 2005); JP Morgan Investor Services, Vice President (January 2001 to June 2005); State Street Bank, Vice President and Corporate Audit Manager (prior to January 2001) Timothy M. Fagan(3) Assistant September 2005 Massachusetts Financial Services (born 7/10/68) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since September 2005); John Hancock Advisers, LLC, Vice President and Chief Compliance Officer (September 2004 to August 2005), Senior Attorney (prior to September 2004); John Hancock Group of Funds, Vice President and Chief Compliance Officer (September 2004 to December 2004) Mark D. Fischer(3) Assistant July 2005 Massachusetts Financial Services (born 10/27/70) Treasurer Company, Vice President (since May 2005); JP Morgan Investment Management Company, Vice President (prior to May 2005) Brian T. Hourihan(3) Assistant September 2004 Massachusetts Financial Services (born 11/11/64) Secretary and Company, Vice President, Senior Assistant Clerk Counsel and Assistant Secretary (since June 2004); Affiliated Managers Group, Inc., Chief Legal Officer/Centralized Compliance Program (January to April 2004); Fidelity Research & Management Company, Assistant General Counsel (prior to January 2004) Ellen Moynihan(3) Assistant April 1997 Massachusetts Financial Services (born 11/13/57) Treasurer Company, Vice President Susan S. Newton(3) Assistant May 2005 Massachusetts Financial Services (born 03/07/50) Secretary and Company, Senior Vice President and Assistant Clerk Associate General Counsel (since April 2005); John Hancock Advisers, LLC, Senior Vice President, Secretary and Chief Legal Officer (prior to April 2005); John Hancock Group of Funds, Senior Vice President, Secretary and Chief Legal Officer (prior to April 2005) Susan A. Pereira(3) Assistant July 2005 Massachusetts Financial Services (born 11/05/70) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since June 2004); Bingham McCutchen LLP (law firm), Associate (January 2001 to June 2004); Preti, Flaherty, Beliveau, Pachios & Haley, LLC, Associate (prior to January 2001) Frank L. Tarantino Independent Chief June 2004 Tarantino LLC (provider of (born 03/07/44) Compliance compliance services), Principal Officer (since June 2004); CRA Business Strategies Group (consulting services), Executive Vice President (April 2003 to June 2004); David L. Babson & Co. (investment adviser), Managing Director, Chief Administrative Officer and Director (February 1997 to March 2003) James O. Yost(3) Assistant September 1990 Massachusetts Financial Services (born 06/12/60) Treasurer Company, Senior Vice President - ------------ (1) Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served continuously since appointment unless indicated otherwise. (2) Directorships or trusteeships of companies required to report to the Securities and Exchange Commission (i.e., "public companies"). (3) "Interested person" of the Trust within the meaning of the Investment Company Act of 1940 (referred to as the 1940 Act), which is the principal federal law governing investment companies like the fund, as a result of position with MFS. The address of MFS is 500 Boylston Street, Boston, Massachusetts 02116. Each Trustee has been elected by shareholders and each Trustee and officer holds office until his or her successor is chosen and qualified or until his or her earlier death, resignation, retirement or removal. Messrs. Ives and Sherratt and Mses. Lane and Thomsen are members of the Trust's Audit Committee. Each of the Trust's Trustees and officers holds comparable positions with certain other funds of which MFS or a subsidiary is the investment adviser or distributor, and, in the case of the officers, with certain affiliates of MFS. As of December 31, 2004, each Trustee served as a board member of 99 funds within the MFS Family of Funds. The Trust held a shareholders' meeting in 2005, and will hold a shareholders' meeting at least once every five years thereafter, to elect Trustees. The Statement of Additional Information contains further information about the Trustees and is available without charge upon request by calling 1-800-225-2606. - ----------------------------------------------------------------------------------------------------------- INVESTMENT ADVISER CUSTODIAN Massachusetts Financial Services Company State Street Bank and Trust Company 500 Boylston Street, Boston, MA 02116-3741 225 Franklin Street, Boston, MA 02110 DISTRIBUTOR INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM MFS Fund Distributors, Inc. Ernst & Young LLP 500 Boylston Street, Boston, MA 02116-3741 200 Clarendon Street, Boston, MA 02116 PORTFOLIO MANAGER Steven Gorham BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT The Investment Company Act of 1940 requires that both the full Board of Trustees and a majority of the non-interested ("independent") Trustees, voting separately, annually approve the continuation of the Fund's investment advisory agreement with MFS. The Trustees consider matters bearing on the Fund and its advisory arrangements at their meetings throughout the year, including a review of performance data at each regular meeting. In addition, the independent Trustees met several times over the course of three months beginning in May and ending in July, 2005 ("contract review meetings") for the specific purpose of considering whether to approve the continuation of the investment advisory agreement for the Fund and the other investment companies that the Board oversees (the "MFS Funds"). The independent Trustees were assisted in their evaluation of the Fund's investment advisory agreement by independent legal counsel, from whom they received separate legal advice and with whom they met separately from MFS during various contract review meetings. The independent Trustees were also assisted in this process by the MFS Funds' Independent Chief Compliance Officer, a full-time senior officer appointed by and reporting to the independent Trustees. In connection with their deliberations regarding the continuation of the investment advisory agreement, the Trustees, including the independent Trustees, considered such information and factors as they believed, in light of the legal advice furnished to them and their own business judgment, to be relevant. The investment advisory agreement for the Fund was considered separately, although the Trustees also took into account the common interests of all MFS Funds in their review. As described below, the Trustees considered the nature, quality, and extent of the various investment advisory, administrative, and shareholder services performed by MFS under the existing investment advisory agreement and other arrangements with the Fund. In connection with their contract review meetings, the Trustees received and relied upon materials which included, among other items: (i) information provided by Lipper Inc. on the investment performance of the Fund for various time periods ended December 31, 2004 and the investment performance of a group of funds with substantially similar investment classifications/objectives (the "Lipper performance universe"), as well as the investment performance of a group of funds identified by objective criteria suggested by MFS ("peer funds"), (ii) information provided by Lipper Inc. on the Fund's advisory fees and other expenses and the advisory fees and other expenses of comparable funds identified by Lipper (the "Lipper expense group"), as well as the advisory fees and other expenses of peer funds identified by objective criteria suggested by MFS, (iii) information provided by MFS on the advisory fees of comparable portfolios of other clients of MFS, including institutional separate account and other clients, (iv) information as to whether and to what extent applicable expense waivers, reimbursements or fee "breakpoints" are observed for the Fund, (v) information regarding MFS' financial results and financial condition, including MFS' and certain of its affiliates' estimated profitability from services performed for the Fund and the MFS Funds as a whole, (vi) MFS' views regarding the outlook for the mutual fund industry and the strategic business plans of MFS, (vii) descriptions of various functions performed by MFS for the Funds, such as compliance monitoring and portfolio trading practices, and (viii) information regarding the overall organization of MFS, including information about MFS' senior management and other personnel providing investment advisory, administrative and other services to the Fund and the other MFS Funds. The comparative performance, fee and expense information prepared and provided by Lipper Inc. was not independently verified and the independent Trustees did not independently verify any information provided to them by MFS. The Trustees' conclusion as to the continuation of the investment advisory agreement was based on a comprehensive consideration of all information provided to the Trustees and not the result of any single factor. Some of the factors that figured particularly in the Trustees' deliberations are described below, although individual Trustees may have evaluated the information presented differently from one another, giving different weights to various factors. It is also important to recognize that the fee arrangements for the Fund and other MFS Funds are the result of years of review and discussion between the independent Trustees and MFS, that certain aspects of such arrangements may receive greater scrutiny in some years than others, and that the Trustees' conclusions may be based, in part, on their consideration of these same arrangements during the course of the year and in prior years. Based on information provided by Lipper Inc. and MFS, the Trustees reviewed the Fund's total return investment performance as well as the performance of peer groups of funds over various time periods. The Trustees placed particular emphasis on the total return performance of the Fund's Class A shares in comparison to the performance of funds in its Lipper performance universe over the three-year period ended December 31, 2004, which the Trustees believed was a long enough period to reflect differing market conditions. The Fund's performance was in the 33rd percentile relative to the other funds in the universe for this three-year period (the 1st percentile being the best performers and the 100th percentile being the worst performers). The total return performance of the Fund's Class A shares was in the 19th percentile for the one-year period and the 13th percentile for the five-year period ended December 31, 2004 relative to the Lipper performance universe. Because of the passage of time, these performance results are likely to differ from the performance results for more recent periods, including those shown elsewhere in this report. In the course of their deliberations, the Trustees took into account information provided by MFS in connection with the contract review meetings, as well as during investment review meetings conducted with portfolio management personnel during the course of the year regarding the Fund's performance. After reviewing these and related factors, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that they were satisfied with MFS' responses and efforts relating to investment performance. In assessing the reasonableness of the Fund's advisory fee, the Trustees considered, among other information, the Fund's advisory fee and the total expense ratio of the Fund's Class A shares as a percentage of average net assets and the advisory fee and total expense ratios of peer groups of funds based on information provided by Lipper Inc. and MFS. The Trustees considered whether the Fund was subject to any fee waivers or reductions or expense limitations. The Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate was lower than the Lipper expense group median, and the Fund's total expense ratio was approximately at the Lipper expense group median. The Trustees also considered the advisory fees charged by MFS to institutional accounts. In comparing these fees, the Trustees considered information provided by MFS as to the generally broader scope of services provided by MFS to the Fund in comparison to institutional accounts, the higher demands placed on MFS' investment personnel and trading infrastructure as a result of the daily cash in-flows and out-flows of the Fund, and the impact on MFS and expenses associated with the more extensive regulatory regime to which the Fund is subject in comparison to institutional accounts. The Trustees also considered whether the Fund is likely to benefit from any economies of scale in the management of the Fund in the event of growth in assets of the Fund. They noted that the Fund's advisory fee rate schedule is currently subject to a breakpoint that reduces the Fund's advisory fee rate on net assets over $7.5 billion. Taking into account fee waivers or reductions or expense limitations, if any, the Trustees concluded that the existing breakpoint was sufficient to allow the Fund to benefit from economies of scale as its assets grow. The Trustees also considered information prepared by MFS relating to MFS' costs and profits with respect to the Fund, the MFS Funds considered as a group, and other investment companies and accounts advised by MFS, as well as MFS' methodologies used to determine and allocate its costs to the MFS Funds, the Fund and other accounts and products for purposes of estimating profitability. After reviewing these and other factors described herein, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that the advisory fees charged to the Fund represent reasonable compensation in light of the nature and quality of the services being provided by MFS to the Fund. In addition, the Trustees considered MFS' resources and related efforts to continue to retain, attract and motivate capable personnel to serve the Fund. The Trustees also considered current and developing conditions in the financial services industry, including the entry into the industry of large and well-capitalized companies which are spending, and appear to be prepared to continue to spend, substantial sums to engage personnel and to provide services to competing investment companies. In this regard, the Trustees also considered the financial resources of MFS and its ultimate parent, Sun Life Financial Inc. The Trustees also considered the advantages and possible disadvantages to the Fund of having an adviser which also serves other investment companies as well as other accounts. The Trustees also considered the nature, quality, cost, and extent of administrative, transfer agency, and distribution services provided to the Fund by MFS and its affiliates under agreements and plans other than the investment advisory agreement, including any 12b-1 fees the Fund pays to MFS Fund Distributors, Inc., an affiliate of MFS. The Trustees also considered the nature, extent and quality of certain other services MFS performs or arranges for on the Fund's behalf, including securities lending programs, directed expense payment programs, class action recovery programs, and MFS' interaction with third-party service providers, principally custodians and sub-custodians. The Trustees concluded that the various non-advisory services provided by MFS and its affiliates on behalf of the Funds were satisfactory. The Trustees also considered benefits to MFS from the use of the Fund's portfolio brokerage commissions to pay for research and other similar services (including MFS' general policy to pay directly for third-party research), and various other factors. Additionally, the Trustees considered so-called "fall- out benefits" to MFS such as reputational value derived from serving as investment manager to the Fund. Based on their evaluation of factors that they deemed to be material, including those factors described above, the Board of Trustees, including a majority of the independent Trustees, concluded that the Fund's investment advisory agreement with MFS should be continued for an additional one-year period, commencing August 1, 2005. A discussion regarding the Board's most recent review and renewal of the Fund's investment advisory agreement will be available on or before December 1, 2005 by clicking on the fund's name under "Select a fund" on the MFS website (mfs.com). PROXY VOTING POLICIES AND INFORMATION A general description of the MFS funds' proxy voting policies and procedures is available without charge, upon request, by calling 1-800-225-2606, by visiting the Proxy Voting section of mfs.com or by visiting the SEC's Web site at http://www.sec.gov. Information regarding how the fund voted proxies relating to portfolio securities during the most recent twelve-month period ended June 30 is available without charge by visiting the Proxy Voting section of mfs.com or by visiting the SEC's Web site at http://www.sec.gov. QUARTERLY PORTFOLIO DISCLOSURE The fund will file a complete schedule of portfolio holdings with the Securities and Exchange Commission (the Commission) for the first and third quarters of each fiscal year on Form N-Q. The fund's Form N-Q may be reviewed and copied at the: Public Reference Room Securities and Exchange Commission Washington, D.C. 20549-0102 Information on the operation of the Public Reference Room may be obtained by calling the Commission at 1-800-SEC-0330. The fund's Form N-Q is available on the EDGAR database on the Commission's Internet website at http://www.sec.gov, and copies of this information may be obtained, upon payment of a duplicating fee, by electronic request at the following e-mail address: publicinfo@sec.gov or by writing the Public Reference Section at the above address. A shareholder can also obtain the quarterly portfolio holdings report at mfs.com. FEDERAL TAX INFORMATION (unaudited) In January 2006, shareholders will be mailed a Form 1099-DIV reporting the federal tax status of all distributions paid during the calendar year 2005. The fund has designated $12,442,876 as a capital gain dividend for the year ended August 31, 2005. For the year ended August 31, 2005, the amount of distributions from income eligible for the 70% dividends received deduction for corporations is 100.00%. The fund hereby designates the maximum amount allowable as qualified dividend income eligible for a maximum tax rate of 15%, as provided for by the Jobs and Growth Tax Relief Reconciliation Act of 2003. Complete information will be reported in conjunction with your 2005 Form 1099-DIV. CONTACT INFORMATION INVESTOR SERVICE Write to us at: MFS Service Center, Inc. P.O. Box 55824 Boston, MA 02205-5824 Type of Information Phone number Hours, Eastern Time - -------------------------------------------------------------------------------- General information 1-800-225-2606 8 a.m. to 8 p.m., any business day - -------------------------------------------------------------------------------- Speech- or hearing-impaired 1-800-637-6576 9 a.m. to 5 p.m., any business day - -------------------------------------------------------------------------------- Share prices, account 1-800-MFS-TALK balances exchanges (1-800-637-8255) 24 hours a day, 365 days a or stock and bond outlooks touch-tone required year - -------------------------------------------------------------------------------- M F S(SM) INVESTMENT MANAGEMENT(R) (C) 2005 MFS Investment Management(R) MFS(R) investment products are offered through MFS Fund Distributors, Inc., 500 Boylston Street, Boston, MA 02116. EIF-ANN-10/05 346M MFS(R) Mutual Funds ANNUAL REPORT 8/31/05 MFS(R) CASH RESERVE FUND A path for pursuing opportunity [graphic omitted] [logo] M F S(SM) INVESTMENT MANAGEMENT(R) - -------------------------------------------------------------------------------------------------- NOT FDIC INSURED MAY LOSE VALUE NO BANK OR CREDIT UNION GUARANTEE NOT A DEPOSIT NOT INSURED BY ANY FEDERAL GOVERNMENT AGENCY OR NCUA/NCUSIF - -------------------------------------------------------------------------------------------------- MFS(R) CASH RESERVE FUND 8/31/05 The fund seeks as high a level of current income as is considered consistent with the preservation of capital and liquidity. THIS REPORT IS PREPARED FOR THE GENERAL INFORMATION OF SHAREHOLDERS. IT IS AUTHORIZED FOR DISTRIBUTION TO PROSPECTIVE INVESTORS ONLY WHEN PRECEDED OR ACCOMPANIED BY A CURRENT PROSPECTUS. TABLE OF CONTENTS - ---------------------------------------------------- LETTER FROM THE CEO 1 - ---------------------------------------------------- PORTFOLIO COMPOSITION 2 - ---------------------------------------------------- PERFORMANCE SUMMARY 3 - ---------------------------------------------------- EXPENSE TABLE 6 - ---------------------------------------------------- PORTFOLIO OF INVESTMENTS 8 - ---------------------------------------------------- FINANCIAL STATEMENTS 10 - ---------------------------------------------------- NOTES TO FINANCIAL STATEMENTS 20 - ---------------------------------------------------- REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 28 - ---------------------------------------------------- RESULTS OF SHAREHOLDER MEETING 29 - ---------------------------------------------------- TRUSTEES AND OFFICERS 30 - ---------------------------------------------------- BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT 35 - ---------------------------------------------------- PROXY VOTING POLICIES AND INFORMATION 39 - ---------------------------------------------------- QUARTERLY PORTFOLIO DISCLOSURE 39 - ---------------------------------------------------- FEDERAL TAX INFORMATION 39 - ---------------------------------------------------- CONTACT INFORMATION BACK COVER LETTER FROM THE CEO [Photo of Robert J. Manning] Dear Shareholders, Most investors are familiar with the basic principles of investing - focus on the long term and keep your assets diversified across different investment categories. Still, it is surprising how often we forget these basic lessons. Certainly, the dot-com euphoria that overtook Wall Street in the late 1990s had many people hoping they could become millionaires overnight. But the market decline that started in the spring of 2000 taught everyone how misguided those hopes had been. Now, less than five years after the market taught a harsh lesson in the follies of speculative investing, we are seeing a number of trends that suggest many investors, including professionals, are hoping for overnight miracles again. We see a steady stream of market "gurus" on television news shows, promising to teach amateur investors the strategies that will allow them to get rich quick. Hedge funds - which by their nature move in and out of investments rapidly - have soared in popularity over the past five years. We are reminded every day that we live in a "what have you done for me lately?" world, but this mindset should not influence how we invest and manage our money. In fact, investors often fall short of their goals because they trade in and out of investments too frequently and at inopportune times. Throughout our entire 80-year history, MFS' money management process has focused on long-term investment opportunities. We firmly believe that one of the best ways to realize long-term financial goals - be it a college education, a comfortable retirement, or a secure family legacy - is to follow a three-pronged approach that focuses on longer time horizons. Allocate holdings across the major asset classes - including stocks, bonds, and cash. Diversify within each class to take advantage of different market segments and investing styles. And rebalance assets regularly to maintain a desired asset allocation.* This long-term approach requires diligence and patience, two traits that in our experience are essential to capitalizing on the many opportunities the financial markets can offer. Respectfully, /s/ Robert J. Manning Robert J. Manning Chief Executive Officer and Chief Investment Officer MFS Investment Management(R) October 17, 2005 * Asset allocation, diversification, and rebalancing does not guarantee a profit or protect against a loss. The opinions expressed in this letter are those of MFS, and no forecasts can be guaranteed. PORTFOLIO COMPOSITION PORTFOLIO STRUCTURE* Commercial Paper 79.5% Certificates of Deposit 20.7% Other Assets Less Liabilities -0.2% SHORT TERM CREDIT QUALITY** Average Credit Quality Short-Term Bonds*** A-1 ------------------------------------------------ All holdings are rated A-1 MATURITY BREAKDOWN* 0-29 days 51.6% ------------------------------------------------ 30-59 days 40.5% ------------------------------------------------ 60-89 days 8.1% ------------------------------------------------ Other assets less liabilities -0.2% ------------------------------------------------ * For purposes of this graphical presentation, the bond component includes both accrued interest amounts and the equivalent exposure from any derivative holdings, if applicable. ** Each security is assigned a rating from Moody's Investors Service. If not rated by Moody's, the rating will be that assigned by Standard & Poor's. Likewise, if not assigned a rating by Standard & Poor's, it will be based on the rating assigned by Fitch, Inc. For those portfolios that hold a security which is not rated by any of the three agencies, the security is considered Not Rated. Holdings in U.S. Treasuries and mortgage-backed securities, if any, are included in a "AAA"-rating category. Percentages are based on the total market value of investments as of 8/31/05. *** The Average Credit Quality rating is based upon a market weighted average of portfolio holdings. From time to time, "Other Assets Less Liabilities" may be negative due to timing of cash receipts. Percentages are based on net assets as of 8/31/05, unless otherwise noted. The portfolio is actively managed, and current holdings may be different. PERFORMANCE SUMMARY THROUGH 8/31/05 Performance results are historical and reflect the change in net asset value, including reinvestment of dividends and capital gains distributions. An investment in the fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in this fund. (See Notes to Performance Summary.) VISIT MFS.COM FOR THE MOST RECENT MONTH-END PERFORMANCE RESULTS. MARKET VOLATILITY CAN SIGNIFICANTLY AFFECT SHORT-TERM PERFORMANCE, AND CURRENT PERFORMANCE MAY BE LOWER OR HIGHER THAN THE PERFORMANCE DATA QUOTED. THE PERFORMANCE DATA QUOTED REPRESENTS PAST PERFORMANCE, WHICH IS NO GUARANTEE OF FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE WILL FLUCTUATE, AND SHARES, WHEN REDEEMED, MAY BE WORTH MORE OR LESS THAN THEIR ORIGINAL COST. THE PERFORMANCE SHOWN DOES NOT REFLECT THE DEDUCTION OF TAXES, IF ANY, THAT A SHAREHOLDER WOULD PAY ON FUND DISTRIBUTIONS OR THE REDEMPTION OF FUND SHARES. 1 YEAR TOTAL RETURN CURRENT (WITHOUT CURRENT 7-DAY YIELD CLASS INCEPTION SALES CHARGE) 7-DAY YIELD WITHOUT WAIVER - -------------------------------------------------------------------------------- A 9/07/93 2.11% 3.04% 2.64% - -------------------------------------------------------------------------------- B 12/29/86 1.10% 2.04% 1.64% - -------------------------------------------------------------------------------- C 4/01/96 1.10% 2.04% 1.64% - -------------------------------------------------------------------------------- R1 4/01/05 1.02% 1.84% 1.44% - -------------------------------------------------------------------------------- R2 4/01/05 1.14% 2.14% 1.74% - -------------------------------------------------------------------------------- R3 4/01/05 1.21% 2.29% 1.89% - -------------------------------------------------------------------------------- R4 4/01/05 1.94% 2.63% 2.23% - -------------------------------------------------------------------------------- R5 4/01/05 2.07% 2.94% 2.54% - -------------------------------------------------------------------------------- 529A 7/31/02 1.86% 2.79% 2.04% - -------------------------------------------------------------------------------- 529B 7/31/02 0.87% 1.79% 1.39% - -------------------------------------------------------------------------------- 529C 7/31/02 0.87% 1.79% 1.39% - -------------------------------------------------------------------------------- Yields quoted are based on the latest seven days ended as of August 31, 2005, with dividends annualized. The yield quotation more closely reflects the current earnings of the fund than the total return quotation. 1 YEAR TOTAL RETURN (WITH CLASS SALES CHARGE) - -------------------------------------------------------------------------------- B -2.90% - -------------------------------------------------------------------------------- C 0.10% - -------------------------------------------------------------------------------- 529B -3.13% - -------------------------------------------------------------------------------- 529C -0.13% - -------------------------------------------------------------------------------- Class A, R1, R2, R3, R4, R5, and 529A Shares have no sales charge. Please see Notes to Performance Summary for more details. NOTES TO PERFORMANCE SUMMARY Class A and 529A shares have no sales charge. Class B and 529B results, including sales charge, reflect the deduction of the applicable contingent deferred sales charge (CDSC), which declines over six years from 4% to 0%. Class C and 529C results, including sales charge (assuming redemption within one year from the end of the calendar month of purchase), reflect the deduction of the 1% CDSC. Class R1, R2, R3, R4, and R5 shares have no initial sales charge or CDSC and are only available to certain retirement plans. Class 529 shares are only available in conjunction with qualified tuition programs, such as the MFS 529 Savings Plan. There also is an additional annual fee, which is detailed in the program description, on qualified tuition programs. If this fee was reflected, the performance for Class 529 shares would have been lower. This annual fee is waived for Oregon residents and for those accounts with assets of $25,000 or more. Performance for R4 and R5 shares includes the performance of the fund's Class A shares prior to their offering. Performance for R1, R2, and R3 includes the performance of the fund's Class B shares prior to their offering. This blended class performance has been adjusted to take into account differences in sales loads, if any, applicable to these share classes, but has not been adjusted to take into account differences in class specific operating expenses (such as Rule 12b-1 fees). Compared to performance these share classes would have experienced had they been offered for the entire period, the use of blended performance generally results in higher performance for share classes with higher operating expenses than the share class to which it is blended, and lower performance for share classes with lower operating expenses than the share class to which it is blended. Performance results reflect any applicable expense subsidies and waivers in effect during the periods shown. Without such subsidies and waivers the fund's performance results would be less favorable. Please see the prospectus and financial statements for complete details. KEY RISK CONSIDERATIONS The portfolio's yield and share price change daily and are based on changes in interest rates and market conditions, and in response to other economic, political, or financial developments. In general, the value of debt securities will decline when interest rates rise and will increase when interest rates fall. Lower-quality debt securities and certain types of other securities involve greater risk of default or price changes due to changes in the credit quality of the issuer. The value of the portfolio's domestic investments will fluctuate in response to many factors including the performance and valuation of the issuer and general market conditions. Foreign investments can be more volatile than U.S. investments. The municipal market is volatile and can be significantly affected by adverse tax, legislative or political changes and the financial condition of the issuers of municipal securities. Please see the prospectus for further information regarding these and other risks considerations. EXPENSE TABLE FUND EXPENSES BORNE BY THE SHAREHOLDERS DURING THE PERIOD, MARCH 1, 2005 THROUGH AUGUST 31, 2005. As a shareholder of the fund, you incur two types of costs: (1) transaction costs, including sales charges (loads) on certain purchase or redemption payments and redemption fees on certain exchanges and redemptions, and (2) ongoing costs, including management fees; distribution and service (12b-1) fees; and other fund expenses. This example is intended to help you understand your ongoing costs (in dollars) of investing in the fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 invested at the beginning of the period and held for the entire period March 1, 2005 through August 31, 2005. ACTUAL EXPENSES The first line for each share class in the table below provides information about actual account values and actual expenses. You may use the information in this line, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading entitled "Expenses Paid During Period" to estimate the expenses you paid on your account during this period. HYPOTHETICAL EXAMPLE FOR COMPARISON PURPOSES The second line for each share class in the table below provides information about hypothetical account values and hypothetical expenses based on the fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the table are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as sales charges (loads) or redemption fees. Therefore, the second line for each share class in the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher. - ------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period** Expense Account Value Account Value 3/01/05- Share Class Ratio 3/01/05 8/31/05 8/31/05 - -------------------------------------------------------------------------------- Actual 0.54% $1,000.00 $1,013.00 $2.74 A --------------------------------------------------------------------- Hypothetical* 0.54% $1,000.00 $1,022.48 $2.75 - -------------------------------------------------------------------------------- Actual 1.54% $1,000.00 $1,007.90 $7.79 B ---------------------------------------------------------------------- Hypothetical* 1.54% $1,000.00 $1,017.44 $7.83 - -------------------------------------------------------------------------------- Actual 1.53% $1,000.00 $1,007.90 $7.74 C --------------------------------------------------------------------- Hypothetical* 1.53% $1,000.00 $1,017.49 $7.78 - -------------------------------------------------------------------------------- Actual 1.84% $1,000.00 $1,007.10 $9.31 R1 --------------------------------------------------------------------- Hypothetical* 1.84% $1,000.00 $1,015.93 $9.35 - -------------------------------------------------------------------------------- Actual 1.53% $1,000.00 $1,008.40 $7.75 R2 --------------------------------------------------------------------- Hypothetical* 1.53% $1,000.00 $1,017.49 $7.78 - -------------------------------------------------------------------------------- Actual 1.43% $1,000.00 $1,009.00 $7.24 R3 --------------------------------------------------------------------- Hypothetical* 1.43% $1,000.00 $1,018.00 $7.27 - -------------------------------------------------------------------------------- Actual 0.98% $1,000.00 $1,011.30 $4.97 R4 --------------------------------------------------------------------- Hypothetical* 0.98% $1,000.00 $1,020.27 $4.99 - -------------------------------------------------------------------------------- Actual 0.68% $1,000.00 $1,012.60 $3.45 R5 --------------------------------------------------------------------- Hypothetical* 0.68% $1,000.00 $1,021.78 $3.47 - -------------------------------------------------------------------------------- Actual 0.79% $1,000.00 $1,011.70 $4.01 529A --------------------------------------------------------------------- Hypothetical* 0.79% $1,000.00 $1,021.22 $4.02 - -------------------------------------------------------------------------------- Actual 1.79% $1,000.00 $1,006.70 $9.05 529B --------------------------------------------------------------------- Hypothetical* 1.79% $1,000.00 $1,016.18 $9.10 - -------------------------------------------------------------------------------- Actual 1.79% $1,000.00 $1,006.70 $9.05 529C --------------------------------------------------------------------- Hypothetical* 1.79% $1,000.00 $1,016.18 $9.10 - -------------------------------------------------------------------------------- * 5% class return per year before expenses. ** Expenses paid is equal to each class' annualized expense ratio, as shown above, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year. Expenses paid do not include any applicable sales charges (loads) or redemption fees. If these transaction costs had been included, your costs would have been higher. PORTFOLIO OF INVESTMENTS - 8/31/05 The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Certificates of Deposit - 20.7% - --------------------------------------------------------------------------------------------------- ISSUER PAR AMOUNT $ VALUE - --------------------------------------------------------------------------------------------------- BNP Paribas, NY, 3.52%, due 10/13/05 $ 17,450,000 $ 17,450,000 Caylon NY, 3.37%, due 9/20/05 12,220,000 12,219,529 Credit Suisse First Boston, NY, 3.5%, due 9/23/05 17,077,000 17,077,000 Deutsche Bank A.G., NY, 3.51%, due 10/11/05 17,768,000 17,768,000 Natexis Banque Populaires, NY, 3.505%, due 9/20/05 17,092,000 17,092,000 Svenska Handelsbanken A.B., NY, 3.415%, due 9/09/05 5,756,000 5,756,000 - --------------------------------------------------------------------------------------------------- Total Certificates of Deposit, at Amortized Cost and Value $ 87,362,529 - --------------------------------------------------------------------------------------------------- Commercial Paper - 79.5%< - --------------------------------------------------------------------------------------------------- American Express Credit Corp., 3.68%, due 11/08/05 $ 17,277,000 $ 17,156,906 American General Finance Corp., 3.48%, due 9/16/05 4,319,000 4,312,738 American General Finance Corp., 3.63%, due 10/17/05 12,884,000 12,824,240 Bank of America Corp., 3.54%, due 10/19/05 14,000,000 13,933,920 Barton Capital LLC, 3.64%, due 10/18/05@ 17,029,000 16,948,074 Ciesco LLC, 3.32%, due 9/13/05@ 14,281,000 14,265,196 Citibank Credit Card Issuance Trust, 3.51%, due 9/22/05@ 10,500,000 10,478,501 Citigroup Funding, Inc., 3.6%, due 10/11/05 17,225,000 17,156,100 Depfa Bank PLC, 3.69%, due 11/14/05@ 17,285,000 17,153,893 Falcon Asset Securitization Corp., 3.6%, due 10/06/05@ 4,008,000 3,993,972 Falcon Asset Securitization Corp., 3.65%, due 10/20/05@ 13,153,000 13,087,655 General Electric Capital Corp., 3.58%, due 9/01/05 9,080,000 9,080,000 Genworth Financial, Inc., 3.43%, due 9/12/05@ 5,000,000 4,994,760 Govco, Inc., 3.32%, due 9/15/05@ 600,000 599,225 Govco, Inc., 3.38%, due 9/16/05@ 6,455,000 6,445,909 HSBC USA, Inc., 3.39%, due 9/27/05 14,000,000 13,965,723 ING America Insurance Holdings, Inc., 3.32%, due 9/06/05 7,290,000 7,286,639 ING America Insurance Holdings, Inc., 3.46%, due 10/04/05 6,282,000 6,262,076 Jupiter Securitization Corp., 3.6%, due 10/05/05@ 17,159,000 17,100,659 Kitty Hawk Funding Corp., 3.54%, due 9/23/05@ 16,985,000 16,948,256 MetLife Funding, Inc., 3.38%, due 9/20/05 3,229,000 3,223,240 Morgan Stanley, Inc., 3.69%, due 10/27/05 17,009,000 16,911,368 Old Line Funding LLC, 3.38%, due 9/07/05@ 17,575,000 17,565,100 Park Avenue Receivables Company LLC, 3.55%, due 9/22/05@ 13,675,000 13,646,681 Park Avenue Receivables Company LLC, 3.56%, due 10/04/05@ 3,500,000 3,488,578 Procter & Gamble Co., 3.37%, due 9/19/05@ 9,493,000 9,477,004 Ranger Funding Co. LLC, 3.51%, due 9/14/05@ 8,798,000 8,786,849 SBC Communications, Inc., 3.45%, due 9/07/05@ 1,300,000 1,299,253 SBC Communications, Inc., 3.47%, due 9/12/05@ 4,581,000 4,576,143 SBC Communications, Inc., 3.54%, due 9/26/05@ 11,223,000 11,195,410 Svenska Handelsbanken, Inc., 3.56%, due 10/04/05 11,357,000 11,319,938 Toyota Motor Credit Corp., 3.35%, due 9/20/05 5,994,000 5,983,402 Verizon Network Funding Co., 3.69%, due 10/24/05 2,837,000 2,821,588 WalMart Stores, Inc., 3.39%, due 9/13/05@ 2,000,000 1,997,740 - --------------------------------------------------------------------------------------------------- Total Commercial Paper, at Amortized Cost and Value $ 336,286,736 - --------------------------------------------------------------------------------------------------- Total Investments, at Amortized Cost and Value $ 423,649,265 - --------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - (0.2)% (897,539) - --------------------------------------------------------------------------------------------------- Net Assets - 100.0% $ 422,751,726 - --------------------------------------------------------------------------------------------------- < The rate shown represents an annualized yield at time of purchase. @ Security exempt from registration under Section 4(2) of the Securities Act of 1933. SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statement of Assets and Liabilities This statement represents your fund's balance sheet, which details the assets and liabilities composing the total value of the fund. AT 8/31/05 ASSETS - ------------------------------------------------------------------------------------------------------ Investments, at amortized cost and value $423,649,265 Receivable for fund shares sold 1,518,249 Interest receivable 432,388 Other assets 1,644 - ------------------------------------------------------------------------------------------------------ Total assets $425,601,546 - ------------------------------------------------------------------------------------------------------ LIABILITIES - ------------------------------------------------------------------------------------------------------ Payable to custodian $99,477 Distributions payable 31,950 Payable for fund shares reacquired 2,340,690 Payable to affiliates Management fee 3,443 Shareholder servicing costs 141,604 Distribution and service fees 17,977 Administrative services fee 258 Program manager fees 35 Retirement plan administrative and services fees 38 Accrued expenses and other liabilities 214,348 - ------------------------------------------------------------------------------------------------------ Total liabilities $2,849,820 - ------------------------------------------------------------------------------------------------------ Net assets $422,751,726 - ------------------------------------------------------------------------------------------------------ NET ASSETS CONSIST OF: - ------------------------------------------------------------------------------------------------------ Paid-in capital $422,751,726 Accumulated net realized gain (loss) on investments (445) Accumulated undistributed net investment income 445 - ------------------------------------------------------------------------------------------------------ Net assets $422,751,726 - ------------------------------------------------------------------------------------------------------ Shares of beneficial interest outstanding 422,751,726 - ------------------------------------------------------------------------------------------------------ Class A shares - ------------------------------------------------------------------------------------------------------ Net assets $91,165,017 Shares outstanding 91,165,017 - ------------------------------------------------------------------------------------------------------ Net asset value, offering price, and redemption price per share $1.00 - ------------------------------------------------------------------------------------------------------ Class B shares - ------------------------------------------------------------------------------------------------------ Net assets $280,361,044 Shares outstanding 280,361,044 - ------------------------------------------------------------------------------------------------------ Net asset value and offering price per share $1.00 - ------------------------------------------------------------------------------------------------------ Class C shares - ------------------------------------------------------------------------------------------------------ Net assets $46,482,797 Shares outstanding 46,482,797 - ------------------------------------------------------------------------------------------------------ Net asset value and offering price per share $1.00 - ------------------------------------------------------------------------------------------------------ Statement of Assets and Liabilities - continued Class R1 shares - ------------------------------------------------------------------------------------------------------ Net assets $258,170 Shares outstanding 258,170 - ------------------------------------------------------------------------------------------------------ Net asset value, offering price, and redemption price per share $1.00 - ------------------------------------------------------------------------------------------------------ Class R2 shares - ------------------------------------------------------------------------------------------------------ Net assets $603,801 Shares outstanding 603,801 - ------------------------------------------------------------------------------------------------------ Net asset value, offering price, and redemption price per share $1.00 - ------------------------------------------------------------------------------------------------------ Class R3 shares - ------------------------------------------------------------------------------------------------------ Net assets $1,179,081 Shares outstanding 1,179,081 - ------------------------------------------------------------------------------------------------------ Net asset value, offering price, and redemption price per share $1.00 - ------------------------------------------------------------------------------------------------------ Class R4 shares - ------------------------------------------------------------------------------------------------------ Net assets $50,570 Shares outstanding 50,570 - ------------------------------------------------------------------------------------------------------ Net asset value, offering price, and redemption price per share $1.00 - ------------------------------------------------------------------------------------------------------ Class R5 shares - ------------------------------------------------------------------------------------------------------ Net assets $50,528 Shares outstanding 50,528 - ------------------------------------------------------------------------------------------------------ Net asset value, offering price, and redemption price per share $1.00 - ------------------------------------------------------------------------------------------------------ Class 529A shares - ------------------------------------------------------------------------------------------------------ Net assets $1,650,080 Shares outstanding 1,650,080 - ------------------------------------------------------------------------------------------------------ Net asset value, offering price, and redemption price per share $1.00 - ------------------------------------------------------------------------------------------------------ Class 529B shares - ------------------------------------------------------------------------------------------------------ Net assets $340,061 Shares outstanding 340,061 - ------------------------------------------------------------------------------------------------------ Net asset value and offering price per share $1.00 - ------------------------------------------------------------------------------------------------------ Class 529C shares - ------------------------------------------------------------------------------------------------------ Net assets $610,577 Shares outstanding 610,577 - ------------------------------------------------------------------------------------------------------ Net asset value and offering price per share $1.00 - ------------------------------------------------------------------------------------------------------ A contingent deferred sales charge may be imposed on redemptions of Class B, Class C, Class 529B and Class 529C shares. SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statement of Operations This statement describes how much your fund received in investment income and paid in expenses. It also describes any gains and/or losses generated by fund operations. YEAR ENDED 8/31/05 NET INVESTMENT INCOME - ------------------------------------------------------------------------------------------------------ Interest income $12,663,988 - ------------------------------------------------------------------------------------------------------ Expenses Management fee $2,741,204 Distribution and service fees 4,042,730 Program manager fees 6,356 Shareholder servicing costs 1,187,642 Administrative services fee 50,264 Retirement plan administration and services fees 783 Trustees' compensation 17,578 Custodian fee 165,315 Printing 33,571 Postage 11,427 Auditing fees 32,443 Legal fees 19,994 Shareholder solicitation expenses 43,829 Miscellaneous 175,455 - ------------------------------------------------------------------------------------------------------ Total expenses $8,528,591 - ------------------------------------------------------------------------------------------------------ Fees paid indirectly (21,181) Reduction of expenses by investment adviser and distributor (2,000,179) - ------------------------------------------------------------------------------------------------------ Net expenses $6,507,231 - ------------------------------------------------------------------------------------------------------ Net investment income $6,156,757 - ------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Statements of Changes in Net Assets This statement describes the increases and/or decreases in net assets resulting from operations, any distributions, and any shareholder transactions. FOR YEARS ENDED 8/31 2005 2004 CHANGE IN NET ASSETS - ------------------------------------------------------------------------------------------------------- FROM OPERATIONS - ------------------------------------------------------------------------------------------------------- Net investment income declared as distributions to shareholders $6,156,757 $968,695 - ------------------------------------------------------------------------------------------------------- DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------- From net investment income Class A $(1,959,377) $(609,133) Class B (3,531,863) (295,011) Class C (621,592) (60,049) Class R1 (532) -- Class R2 (1,029) -- Class R3 (2,891) -- Class R4 (466) -- Class R5 (528) -- Class 529A (30,067) (3,925) Class 529B (3,064) (190) Class 529C (5,348) (387) - ------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(6,156,757) $(968,695) - ------------------------------------------------------------------------------------------------------- Change in net assets from fund share transactions $(190,979,377) $(409,455,407) - ------------------------------------------------------------------------------------------------------- NET ASSETS - ------------------------------------------------------------------------------------------------------- At beginning of period $613,731,103 $1,023,186,510 At end of period (including accumulated undistributed net investment income of $445 and $0, respectively) $422,751,726 $613,731,103 - ------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS FINANCIAL STATEMENTS Financial Highlights The financial highlights table is intended to help you understand the fund's financial performance for the past 5 years. Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund (assuming reinvestment of all distributions) held for the entire period. This information has been audited by the fund's independent registered public accounting firm, whose report, together with the fund's financial statements, are included in this report. CLASS A YEARS ENDED 8/31 ------------------------------------------------------------------------------- 2005 2004 2003 2002 2001 Net asset value, beginning of period $1.00 $1.00 $1.00 $1.00 $1.00 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------------- Net investment income $0.02 $0.01 $0.01 $0.01 $0.05 - ----------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.02) $(0.01) $(0.01) $(0.01) $(0.05) - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $1.00 $1.00 $1.00 $1.00 $1.00 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%)*** 2.11 0.58 0.69 1.49 4.85 - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 0.90 0.79 0.81 0.91 0.90 Expenses after expense reductions## 0.50 0.55 0.71 0.81 0.80 Net investment income 2.10 0.58 0.70 1.44 4.82 Net assets at end of period (000 Omitted) $91,165 $101,287 $214,275 $242,230 $107,346 - ----------------------------------------------------------------------------------------------------------------------------- Financial Highlights - continued CLASS B YEARS ENDED 8/31 ----------------------------------------------------------------------------------- 2005 2004 2003 2002 2001 Net asset value, beginning of period $1.00 $1.00 $1.00 $1.00 $1.00 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------------- Net investment income $0.01 $0.00+++ $0.00+++ $0.00+++ $0.04 - ----------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.01) $(0.00)+++ $(0.00)+++ $(0.00)+++ $(0.04) - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $1.00 $1.00 $1.00 $1.00 $1.00 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)*** 1.10 0.06 0.06 0.49 3.81 - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.89 1.80 1.81 1.91 1.90 Expenses after expense reductions## 1.49 1.07 1.35 1.81 1.80 Net investment income 1.03 0.06 0.06 0.50 3.65 Net assets at end of period (000 Omitted) $280,361 $429,844 $647,269 $741,638 $514,324 - ----------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS C YEARS ENDED 8/31 ------------------------------------------------------------------------------- 2005 2004 2003 2002 2001 Net asset value, beginning of period $1.00 $1.00 $1.00 $1.00 $1.00 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------------- Net investment income $0.01 $0.00+++ $0.00+++ $0.00+++ $0.04 - ----------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.01) $(0.00)+++ $(0.00)+++ $(0.00)+++ $(0.04) - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $1.00 $1.00 $1.00 $1.00 $1.00 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)*** 1.10 0.06 0.06 0.49 3.80 - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.89 1.79 1.81 1.91 1.90 Expenses after expense reductions## 1.49 1.07 1.36 1.81 1.80 Net investment income 1.03 0.06 0.06 0.50 3.77 Net assets at end of period (000 Omitted) $46,483 $80,482 $159,715 $159,254 $125,200 - ----------------------------------------------------------------------------------------------------------------------------- CLASS R1 PERIOD ENDED 8/31/05** Net asset value, beginning of period $1.00 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ----------------------------------------------------------------------------------------------------------------------------- Net investment income $0.01 - ----------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.01) - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $1.00 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%)*** 0.59++ - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.24+ Expenses after expense reductions## 1.84+ Net investment income 1.52+ Net assets at end of period (000 Omitted) $258 - ----------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R2 PERIOD ENDED 8/31/05** Net asset value, beginning of period $1.00 - ------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ------------------------------------------------------------------------------- Net investment income $0.01 - ------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------- From net investment income $(0.01) - ------------------------------------------------------------------------------- Net asset value, end of period $1.00 - ------------------------------------------------------------------------------- Total return (%)*** 0.72++ - ------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------- Expenses before expense reductions## 1.93+ Expenses after expense reductions## 1.53+ Net investment income 1.97+ Net assets at end of period (000 Omitted) $604 - ------------------------------------------------------------------------------- Financial Highlights - continued CLASS R3 PERIOD ENDED 8/31/05** Net asset value, beginning of period $1.00 - ------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ------------------------------------------------------------------------------- Net investment income $0.01 - ------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------- From net investment income $(0.01) - ------------------------------------------------------------------------------- Net asset value, end of period $1.00 - ------------------------------------------------------------------------------- Total return (%)*** 0.78++ - ------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------- Expenses before expense reductions## 1.83+ Expenses after expense reductions## 1.43+ Net investment income 2.10+ Net assets at end of period (000 Omitted) $1,179 - ------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R4 PERIOD ENDED 8/31/05** Net asset value, beginning of period $1.00 - ------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ------------------------------------------------------------------------------- Net investment income $0.01 - ------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------- From net investment income $(0.01) - ------------------------------------------------------------------------------- Net asset value, end of period $1.00 - ------------------------------------------------------------------------------- Total return (%)*** 0.93++ - ------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------- Expenses before expense reductions## 1.38+ Expenses after expense reductions## 0.98+ Net investment income 2.21+ Net assets at end of period (000 Omitted) $51 - ------------------------------------------------------------------------------- Financial Highlights - continued CLASS R5 PERIOD ENDED 8/31/05** Net asset value, beginning of period $1.00 - ------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ------------------------------------------------------------------------------- Net investment income $0.01 - ------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------- From net investment income $(0.01) - ------------------------------------------------------------------------------- Net asset value, end of period $1.00 - ------------------------------------------------------------------------------- Total return (%)*** 1.06++ - ------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------- Expenses before expense reductions## 1.08+ Expenses after expense reductions## 0.68+ Net investment income 2.51+ Net assets at end of period (000 Omitted) $51 - ------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529A YEARS ENDED 8/31 -------------------------------------------- PERIOD ENDED 2005 2004 2003 8/31/02** Net asset value, beginning of period $1.00 $1.00 $1.00 $1.00 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment income $0.02 $0.00+++ $0.00+++ $0.00+++ - ---------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.02) $(0.00)+++ $(0.00)+++ $(0.00)+++ - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $1.00 $1.00 $1.00 $1.00 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)*** 1.86 0.33 0.45 0.08++ - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 1.50 1.39 1.41 1.26+ Expenses after expense reductions## 0.75 0.80 0.96 1.16+ Net investment income 1.93 0.34 0.33 1.04+ Net assets at end of period (000 Omitted) $1,650 $1,140 $1,164 $30 - ---------------------------------------------------------------------------------------------------------------------------- CLASS 529B YEARS ENDED 8/31 --------------------------------------------- PERIOD ENDED 2005 2004 2003 8/31/02** Net asset value, beginning of period $1.00 $1.00 $1.00 $1.00 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment income $0.01 $0.00+++ $0.00+++ $0.00+++ - ---------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.01) $(0.00)+++ $(0.00)+++ $(0.00)+++ - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $1.00 $1.00 $1.00 $1.00 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)*** 0.87 0.06 0.07 0.02++ - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.13 2.03 2.06 2.16+ Expenses after expense reductions## 1.73 1.08 1.25 2.06+ Net investment income 0.87 0.07 0.06 0.23+ Net assets at end of period (000 Omitted) $340 $339 $253 $5 - ---------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529C YEARS ENDED 8/31 --------------------------------------------- PERIOD ENDED 2005 2004 2003 8/31/02** Net asset value, beginning of period $1.00 $1.00 $1.00 $1.00 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS# - ---------------------------------------------------------------------------------------------------------------------------- Net investment income $0.01 $0.00+++ $0.00+++ $0.00+++ - ---------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.01) $(0.00)+++ $(0.00)+++ $(0.00)+++ - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $1.00 $1.00 $1.00 $1.00 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%)(+)*** 0.87 0.06 0.07 0.02++ - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions## 2.13 2.03 2.06 2.16+ Expenses after expense reductions## 1.73 1.08 1.22 2.06+ Net investment income 0.85 0.06 0.05 0.23+ Net assets at end of period (000 Omitted) $611 $640 $512 $5 - ---------------------------------------------------------------------------------------------------------------------------- ** For the period from the class' inception, July 31, 2002 (Classes 529A, 529B, and 529C), and April 1, 2005 (Classes R1, R2, R3, R4, and R5) through the stated period end. *** Certain expenses have been reduced without which performance would have been lower. + Annualized. ++ Not annualized. +++ Per share amount was less than $0.01. # Per share data are based on average shares outstanding. ## Ratios do not reflect reductions from fees paid indirectly. (+) Total returns do not include any applicable sales charge. SEE NOTES TO FINANCIAL STATEMENTS NOTES TO FINANCIAL STATEMENTS (1) BUSINESS AND ORGANIZATION MFS Cash Reserve Fund (the fund) is a diversified series of MFS Series Trust I (the trust). The trust is organized as a Massachusetts business trust and is registered under the Investment Company Act of 1940, as amended, as an open- end management investment company. (2) SIGNIFICANT ACCOUNTING POLICIES GENERAL - The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. INVESTMENT VALUATIONS - Money market instruments are valued at amortized cost, which the Trustees have determined in good faith approximates market value. The fund's use of amortized cost is subject to the fund's compliance with certain conditions as specified under Rule 2a-7 of the Investment Company Act of 1940. REPURCHASE AGREEMENTS - The fund may enter into repurchase agreements with institutions that the fund's investment adviser has determined are creditworthy. Each repurchase agreement is recorded at cost. The fund requires that the securities collateral in a repurchase transaction be transferred to the custodian in a manner sufficient to enable the fund to obtain those securities in the event of a default under the repurchase agreement. The fund monitors, on a daily basis, the value of the collateral to ensure that its value, including accrued interest, is greater than amounts owed to the fund under each such repurchase agreement. The fund, along with other affiliated entities of Massachusetts Financial Services Company (MFS), may utilize a joint trading account for the purpose of entering into one or more repurchase agreements. INVESTMENT TRANSACTIONS AND INCOME - Investment transactions are recorded on the trade date. Interest income is recorded on the accrual basis. All premium and discount is amortized and accreted for financial statement purposes and tax reporting purposes in accordance with generally accepted accounting principles and federal tax regulations, respectively. FEES PAID INDIRECTLY - The fund's custody fee is reduced according to an arrangement that measures the value of cash deposited with the custodian by the fund. During the year ended August 31, 2005, the fund's custodian fees were reduced by $21,181 under this arrangement. This amount is shown as a reduction of total expenses on the Statement of Operations. TAX MATTERS AND DISTRIBUTIONS - The fund's policy is to comply with the provisions of the Internal Revenue Code (the Code) applicable to regulated investment companies and to distribute to shareholders all of its net taxable income, including any net realized gain on investments. Accordingly, no provision for federal income or excise tax is provided. Distributions to shareholders are recorded on the ex-dividend date. The fund distinguishes between distributions on a tax basis and a financial reporting basis and only distributions in excess of tax basis earnings and profits are reported in the financial statements as distributions from paid-in capital. Differences in the recognition or classification of income between the financial statements and tax earnings and profits, which result in temporary over-distributions for financial statement purposes, are classified as distributions in excess of net investment income or net realized gains. The tax character of distributions declared for the years ended August 31, 2005 and August 31, 2004 was as follows: 8/31/05 8/31/04 Distributions declared from: Ordinary income $6,156,757 $968,695 During the year ended August 31, 2005, accumulated undistributed net investment income increased by $445 and accumulated net realized gain (loss) on investments decreased by $445 due to differences between book and tax presentation of capital losses. This change had no effect on the net assets or net asset value per share. As of August 31, 2005, the components of distributable earnings (accumulated losses) on a tax basis were as follows: Undistributed ordinary income $63,714 Capital loss carryforward (445) Other temporary differences (63,269) For federal income tax purposes, the capital loss carryforward may be applied against any net taxable realized gains of each succeeding year until the earlier of its utilization or expiration on August 31, 2012 ($441) and August 31, 2013 ($4). MULTIPLE CLASSES OF SHARES OF BENEFICIAL INTEREST - The fund offers multiple classes of shares, which differ in their respective distribution and service fees. All shareholders bear the common expenses of the fund based on daily net assets of each class, without distinction between share classes. Dividends are declared separately for each class. Differences in per share dividend rates are generally due to differences in separate class expenses. Class B and Class 529B shares will convert to Class A and Class 529A shares, respectively, approximately eight years after purchase. (3) TRANSACTIONS WITH AFFILIATES INVESTMENT ADVISER - The fund has an investment advisory agreement with Massachusetts Financial Services Company (MFS) to provide overall investment advisory and administrative services, and general office facilities. The management fee is computed daily and paid monthly at an annual rate of 0.55% of the fund's average daily net assets. As part of a settlement agreement with the New York Attorney General concerning market timing and related matters, MFS has agreed to reduce the management fee to 0.15% of the fund's average daily net assets for the period March 1, 2004 through February 28, 2009. For the year ended August 31, 2005, this waiver is reflected as a reduction of total expenses in the Statement of Operations. The management fee incurred for the year ended August 31, 2005 was equivalent to an annual effective rate of 0.15% of the fund's average daily net assets. DISTRIBUTOR - The Board of Trustees has adopted a distribution plan for certain class shares pursuant to Rule 12b-1 of the Investment Company Act of 1940. The fund's distribution plan provides that the fund will pay MFS Fund Distributors, Inc. (MFD) for services provided by MFD and financial intermediaries in connection with the distribution and servicing of certain share classes. One component of the plan is a distribution fee paid to and retained by MFD. Another component of the plan is a service fee paid to MFD which subsequently pays a portion of this fee to financial intermediaries that enter into sales or service agreements with MFD, or its affiliates, based on the average daily net assets of accounts attributable to such intermediaries. Distribution Fee Plan Table: TOTAL ANNUAL SERVICE FEE DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE RETAINED AND SERVICE FEE RATE FEE RATE PLAN(1) RATE(2) BY MFD(3) FEE Class A 0.10% 0.25% 0.35% 0.00% $-- $-- Class B 0.75% 0.25% 1.00% 1.00% 6,203 3,422,919 Class C 0.75% 0.25% 1.00% 1.00% 7,507 603,448 Class R1 0.50% 0.25% 0.75% 0.76% 93 266 Class R2 0.25% 0.25% 0.50% 0.51% 62 268 Class R3 0.25% 0.25% 0.50% 0.52% 62 709 Class R4 0.00% 0.25% 0.25% 0.25% 31 53 Class 529A 0.25% 0.25% 0.50% 0.00% -- 5,467 Class 529B 0.75% 0.25% 1.00% 0.98% 12 3,438 Class 529C 0.75% 0.25% 1.00% 0.98% 58 6,162 - --------------------------------------------------------------------------------------------------------------------------- Total Distribution and Service Fees $4,042,730 (1) In accordance with the distribution plan for certain classes, the fund pays distribution and/or service fees up to these annual percentage rates of each class' average daily net assets. (2) The annual effective rates represent actual fees incurred under the distribution plan for the year ended August 31, 2005 based on each class' average daily net assets. Payment of the 0.25% annual Class A service fee is not yet implemented and will commence on such date as the fund's Board of Trustees may determine. Payment of the 0.10% annual Class A distribution fee is not yet implemented and will commence on such date as the fund's Board of Trustees may determine. 0.10% of the Class 529A distribution fee is currently being waived under a contractual waiver arrangement and payment of 0.15% of the Class 529A distribution fee is not yet implemented. The distribution fee will be imposed on such date as the fund's Board of Trustees may determine. 0.25% of the Class 529A service fee is currently being waived under a contractual waiver arrangement. (3) For the year ended August 31, 2005, MFD retained these service fees. Certain Class A shares acquired through an exchange may be subject to a contingent deferred sales charge upon redemption depending upon when the shares exchanged were originally purchased. Class C and Class 529C shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within 12 months following the purchase. Class B and Class 529B shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within six years of purchase. MFD retained all contingent deferred sales charges. Contingent deferred sales charges imposed during the year ended August 31, 2005 were as follows: AMOUNT Class A $107 Class B $1,270,356 Class C $24,839 Class 529B $89 Class 529C $-- The fund has entered into and may from time to time enter into contracts with program managers and other parties which administer the tuition programs through which an investment in the fund's 529 share classes is made. The fund has entered into an agreement with MFD pursuant to which MFD receives an annual fee of up to 0.35% from the fund based solely upon the value of the fund's 529 share classes attributable to tuition programs to which MFD, or a third party which contracts with MFD, provides administrative services. The current fee has been established at 0.25% annually of average net assets of the fund's 529 share classes. The fee may only be increased with the approval of the Board of Trustees who oversees the fund. The services provided by MFD, or a third party with which MFD contracts, include recordkeeping and tax reporting and account services, as well as services designed to maintain the program's compliance with the Internal Revenue Code and other regulatory requirements. Program manager fees for the year ended August 31, 2005, were as follows: AMOUNT Class 529A $3,911 Class 529B $875 Class 529C $1,570 ------------------------------------------------------- Total Program Manager Fees $6,356 SHAREHOLDER SERVICING AGENT - The fund pays a portion of shareholder servicing costs to MFS Service Center, Inc. (MFSC), a wholly-owned subsidiary of MFS. MFSC receives a fee from the fund, for its services as shareholder servicing agent, set periodically under the supervision of the fund's Board of Trustees. For the year ended August 31, 2005, the fee was $507,770, which equated to 0.1016% annually of the fund's average daily net assets. MFSC also receives payment from the fund for out-of-pocket and sub-accounting expenses paid by MFSC on behalf of the fund. For the year ended August 31, 2005, these costs amounted to $303,563. ADMINISTRATOR - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to certain funds for which MFS acts as investment adviser. Under an administrative services agreement, the funds may partially reimburse MFS the costs incurred to provide these services, subject to review and approval by the Board of Trustees. Each fund is charged a fixed amount plus a fee based on calendar year average net assets. Effective July 1, 2005, the fund's annual fixed amount is $10,000. The administrative services fee incurred for the year ended August 31, 2005 was equivalent to an annual effective rate of 0.0101% of the fund's average daily net assets. In addition to the administrative services provided by MFS to the fund as described above, MFS is responsible for providing certain retirement plan administration and services with respect to certain Class R shares. These services include various administrative, recordkeeping, and communication/ educational services with respect to the retirement plans which invest in these shares, and may be provided directly by MFS or by a third party. For the year ended August 31, 2005, the fund paid an annual retirement plan administration and services fee up to the following annual percentage rates of each class' average daily net assets: AMOUNT FEE TOTAL RETAINED RATE AMOUNT BY MFS Class R1 0.45% $160 $120 Class R2 0.40% 215 151 Class R3 0.25% 355 203 Class R4 0.15% 32 10 Class R5 0.10% 21 19 - ------------------------------------------------------------------------------- Total Retirement Plan Administration and Services Fees $783 $503 TRUSTEES' COMPENSATION - The fund pays compensation to Independent Trustees in the form of a retainer, attendance fees, and additional compensation to Board and Committee chairpersons. The fund does not pay compensation directly to Trustees who are officers of the investment adviser, or to officers of the fund, all of whom receive remuneration for their services to the fund from MFS. Certain officers and Trustees of the fund are officers or directors of MFS, MFS Fund Distributors, Inc. (MFD), and MFS Service Center, Inc. (MFSC). The fund has an unfunded, defined benefit plan for retired Independent Trustees which resulted in a pension expense of $4,949. This amount is included in Trustees compensation for the year ended August 31, 2005. OTHER - This fund and certain other MFS funds (the funds) have entered into a services agreement (the Agreement) which provides for payment of fees by the funds to Tarantino LLC in return for the provision of services of an Independent Chief Compliance Officer (ICCO) for the funds. The ICCO is an officer of the funds and the sole member of Tarantino LLC. MFS has agreed to reimburse the fund for a portion of the payments made by the funds to Tarantino LLC in the amount of $1,791, which is shown as a reduction of total expenses in the Statement of Operations. Additionally, MFS has agreed to bear all expenses associated with office space, other administrative support, and supplies provided to the ICCO. The funds can terminate the Agreement with Tarantino LLC at any time under the terms of the Agreement. (4) PORTFOLIO SECURITIES Purchases and sales of Money Market investments, exclusive of securities subject to repurchase agreements, aggregated $6,910,614,890 and $7,119,700,000, respectively. The cost of investments for federal income tax purposes is the same as for financial reporting purposes. (5) SHARES OF BENEFICIAL INTEREST The fund's Declaration of Trust permits the Trustees to issue an unlimited number of full and fractional shares of beneficial interest. Year ended 8/31/05 Year ended 8/31/04 SHARES AND DOLLARS SHARES AND DOLLARS CLASS A SHARES Shares sold 104,034,506 209,078,235 Shares issued to shareholders in reinvestment of distributions 1,774,925 534,126 Shares reacquired (115,931,387) (322,599,964) - ------------------------------------------------------------------------------------------------ Net change (10,121,956) (112,987,603) CLASS B SHARES Shares sold 176,379,353 341,459,510 Shares issued to shareholders in reinvestment of distributions 3,276,541 289,935 Shares reacquired (329,138,495) (559,174,351) - ------------------------------------------------------------------------------------------------ Net change (149,482,601) (217,424,906) CLASS C SHARES Shares sold 63,564,664 186,509,632 Shares issued to shareholders in reinvestment of distributions 565,746 54,855 Shares reacquired (98,129,128) (265,797,616) - ------------------------------------------------------------------------------------------------ Net change (33,998,718) (79,233,129) Period ended 8/31/05* SHARES AND DOLLARS CLASS R1 SHARES Shares sold 258,123 Shares issued to shareholders in reinvestment of distributions 532 Shares reacquired (485) - ------------------------------------------------------------------------- Net change 258,170 CLASS R2 SHARES Shares sold 602,796 Shares issued to shareholders in reinvestment of distributions 1,030 Shares reacquired (25) - ------------------------------------------------------------------------- Net change 603,801 Period ended 8/31/05* SHARES AND DOLLARS CLASS R3 SHARES Shares sold 1,396,398 Shares issued to shareholders in reinvestment of distributions 2,853 Shares reacquired (220,170) - ------------------------------------------------------------------------- Net change 1,179,081 CLASS R4 SHARES Shares sold 50,351 Shares issued to shareholders in reinvestment of distributions 465 Shares reacquired (246) - ------------------------------------------------------------------------- Net change 50,570 CLASS R5 SHARES Shares sold 50,000 Shares issued to shareholders in reinvestment of distributions 528 - -8----------------------------------------------------------------------- Net change 50,528 Year ended 8/31/05 Year ended 8/31/04 SHARES AND DOLLARS SHARES AND DOLLARS CLASS 529A SHARES Shares sold 1,245,514 647,988 Shares issued to shareholders in reinvestment of distributions 29,689 3,867 Shares reacquired (764,907) (675,589) - ------------------------------------------------------------------------------------------------ Net change 510,296 (23,734) CLASS 529B SHARES Shares sold 34,497 353,059 Shares issued to shareholders in reinvestment of distributions 3,062 181 Shares reacquired (36,419) (267,144) - ------------------------------------------------------------------------------------------------ Net change 1,140 86,096 CLASS 529C SHARES Shares sold 228,402 517,206 Shares issued to shareholders in reinvestment of distributions 5,296 376 Shares reacquired (263,386) (389,713) - ------------------------------------------------------------------------------------------------ Net change (29,688) 127,869 * For the period from the inception of Class R1, Class R2, Class R3, Class R4, and Class R5 shares April 1, 2005 through August 31, 2005. (6) LINE OF CREDIT The fund and other affiliated funds participate in a $1 billion unsecured line of credit provided by a syndication of banks under a credit agreement. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its borrowings, at a rate equal to the Federal Reserve funds rate plus 0.35%. In addition, a commitment fee, based on the average daily, unused portion of the line of credit, is allocated among the participating funds at the end of each calendar quarter. The commitment fee allocated to the fund for the year ended August 31, 2005 was $3,700 and is included in miscellaneous expense. The fund had no significant borrowings during the year ended August 31, 2005. REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Trustees of MFS Series Trust I and the Shareholders of MFS Cash Reserve Fund: We have audited the accompanying statement of assets and liabilities, including the portfolio of investments, of the MFS Cash Reserve Fund (one of the series comprising MFS Series Trust I) (the "Trust"), as of August 31, 2005, and the related statement of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audit. We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. The Trust is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audit included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Trust's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of August 31, 2005, by correspondence with the custodian. We believe that our audit provides a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of MFS Cash Reserve Fund as of August 31, 2005, the results of its operations for the year then ended, the changes in its net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended, in conformity with accounting principles generally accepted in the United States of America. DELOITTE & TOUCHE LLP Boston, Massachusetts October 24, 2005 RESULTS OF SHAREHOLDER MEETING (unaudited) - 8/31/05 At a special meeting of shareholders of MFS Series Trust I, which was held on March 23, 2005, the following action was taken: ITEM 1. To elect a Board of Trustees: NUMBER OF DOLLARS ------------------------------------------- NOMINEE AFFIRMATIVE WITHHOLD AUTHORITY Lawrence H. Cohn, M.D. $8,025,286,508.56 $117,939,292.78 - ----------------------------------------------------------------------------- David H. Gunning 8,030,402,677.64 112,823,123.70 - ----------------------------------------------------------------------------- William R. Gutow 8,027,523,726.27 115,702,075.07 - ----------------------------------------------------------------------------- Michael Hegarty 8,021,162,525.49 122,063,275.85 - ----------------------------------------------------------------------------- J. Atwood Ives 8,024,062,680.07 119,163,121.27 - ----------------------------------------------------------------------------- Amy B. Lane 8,019,792,882.59 123,432,918.75 - ----------------------------------------------------------------------------- Robert J. Manning 8,030,980,361.78 112,245,439.56 - ----------------------------------------------------------------------------- Lawrence T. Perera 8,025,935,401.12 117,290,400.22 - ----------------------------------------------------------------------------- Robert C. Pozen 8,031,655,470.25 111,570,331.09 - ----------------------------------------------------------------------------- J. Dale Sherratt 8,027,226,595.42 115,999,205.92 - ----------------------------------------------------------------------------- Laurie J. Thomsen 8,019,388,506.87 123,837,294.47 - ----------------------------------------------------------------------------- TRUSTEES AND OFFICERS -- IDENTIFICATION AND BACKGROUND The Trustees and officers of the Trust, as of October 1, 2005, are listed below, together with their principal occupations during the past five years. (Their titles may have varied during that period.) The address of each Trustee and officer is 500 Boylston Street, Boston, Massachusetts 02116. PRINCIPAL OCCUPATIONS DURING POSITION(s) HELD TRUSTEE/OFFICER THE PAST FIVE YEARS & NAME, DATE OF BIRTH WITH FUND SINCE(1) OTHER DIRECTORSHIPS(2) - ------------------- ---------------- --------------- ----------------------------- INTERESTED TRUSTEES Robert J. Manning(3) Trustee and February 2004 Massachusetts Financial Services (born 10/20/63) President Company, Chief Executive Officer, President, Chief Investment Officer and Director Robert C. Pozen(3) Trustee February 2004 Massachusetts Financial Services (born 08/08/46) Company, Chairman (since February 2004); Harvard Law School (education), John Olin Visiting Professor (since July 2002); Secretary of Economic Affairs, The Commonwealth of Massachusetts (January 2002 to December 2002); Fidelity Investments, Vice Chairman (June 2000 to December 2001); Fidelity Management & Research Company (investment adviser), President (March 1997 to July 2001); Bell Canada Enterprises (telecommunications), Director; Medtronic, Inc. (medical technology), Director; Telesat (satellite communications), Director INDEPENDENT TRUSTEES J. Atwood Ives Trustee and Chair February 1992 Private investor; Eastern (born 05/01/36) of Trustees Enterprises (diversified services company), Chairman, Trustee and Chief Executive Officer (until November 2000) Lawrence H. Cohn, M.D. Trustee August 1993 Brigham and Women's Hospital, (born 03/11/37) Chief of Cardiac Surgery; Harvard Medical School, Professor of Surgery David H. Gunning Trustee January 2004 Cleveland-Cliffs Inc. (mining (born 05/30/42) products and service provider), Vice Chairman/Director (since April 2001); Encinitos Ventures (private investment company), Principal (1997 to April 2001); Lincoln Electric Holdings, Inc. (welding equipment manufacturer), Director William R. Gutow Trustee December 1993 Private investor and real estate (born 09/27/41) consultant; Capitol Entertainment Management Company (video franchise), Vice Chairman Michael Hegarty Trustee December 2004 Retired; AXA Financial (financial (born 12/21/44) services and insurance), Vice Chairman and Chief Operating Officer (until May 2001); The Equitable Life Assurance Society (insurance), President and Chief Operating Officer (until May 2001) Amy B. Lane Trustee January 2004 Retired; Merrill Lynch & Co., (born 02/08/53) Inc., Managing Director, Investment Banking Group (1997 to February 2001); Borders Group, Inc. (book and music retailer), Director; Federal Realty Investment Trust (real estate investment trust), Trustee Lawrence T. Perera Trustee July 1981 Hemenway & Barnes (attorneys), (born 06/23/35) Partner J. Dale Sherratt Trustee August 1993 Insight Resources, Inc. (born 09/23/38) (acquisition planning specialists), President; Wellfleet Investments (investor in health care companies), Managing General Partner (since 1993); Cambridge Nutraceuticals (professional nutritional products), Chief Executive Officer (until May 2001) Laurie J. Thomsen Trustee March 2005 Private investor; Prism Venture (born 08/05/57) Partners (venture capital), Co- founder and General Partner (until June 2004); St. Paul Travelers Companies (commercial property liability insurance), Director OFFICERS Robert J. Manning(3) President and February 2004 Massachusetts Financial Services (born 10/20/63) Trustee Company, Chief Executive Officer, President, Chief Investment Officer and Director Tracy Atkinson(3) Treasurer September 2005 Massachusetts Financial Services (born 12/30/64) Company, Senior Vice President (since September 2004); PricewaterhouseCoopers LLP, Partner (prior to September 2004) Christopher R. Bohane(3) Assistant July 2005 Massachusetts Financial Services (born 1/18/74) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since April 2003); Kirkpatrick & Lockhart LLP (law firm), Associate (prior to April 2003); Nvest Services Company, Assistant Vice President and Associate Counsel (prior to January 2001) Jeffrey N. Carp(3) Secretary and September 2004 Massachusetts Financial Services (born 12/01/56) Clerk Company, Executive Vice President, General Counsel and Secretary (since April 2004); Hale and Dorr LLP (law firm), Partner (prior to April 2004) Ethan D. Corey(3) Assistant July 2005 Massachusetts Financial Services (born 11/21/63) Secretary and Company, Special Counsel (since Assistant Clerk December 2004); Dechert LLP (law firm), Counsel (prior to December 2004) Stephanie A. DeSisto(3) Assistant May 2003 Massachusetts Financial Services (born 10/01/53) Treasurer Company, Vice President (since April 2003); Brown Brothers Harriman & Co., Senior Vice President (November 2002 to April 2003); ING Groep N.V./Aeltus Investment Management, Senior Vice President (prior to November 2002) David L. DiLorenzo(3) Assistant July 2005 Massachusetts Financial Services (born 8/10/68) Treasurer Company, Vice President (since June 2005); JP Morgan Investor Services, Vice President (January 2001 to June 2005); State Street Bank, Vice President and Corporate Audit Manager (prior to January 2001) Timothy M. Fagan(3) Assistant September 2005 Massachusetts Financial Services (born 7/10/68) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since September 2005); John Hancock Advisers, LLC, Vice President and Chief Compliance Officer (September 2004 to August 2005), Senior Attorney (prior to September 2004); John Hancock Group of Funds, Vice President and Chief Compliance Officer (September 2004 to December 2004) Mark D. Fischer(3) Assistant July 2005 Massachusetts Financial Services (born 10/27/70) Treasurer Company, Vice President (since May 2005); JP Morgan Investment Management Company, Vice President (prior to May 2005) Brian T. Hourihan(3) Assistant September 2004 Massachusetts Financial Services (born 11/11/64) Secretary and Company, Vice President, Senior Assistant Clerk Counsel and Assistant Secretary (since June 2004); Affiliated Managers Group, Inc., Chief Legal Officer/Centralized Compliance Program (January to April 2004); Fidelity Research & Management Company, Assistant General Counsel (prior to January 2004) Ellen Moynihan(3) Assistant April 1997 Massachusetts Financial Services (born 11/13/57) Treasurer Company, Vice President Susan S. Newton(3) Assistant May 2005 Massachusetts Financial Services (born 03/07/50) Secretary and Company, Senior Vice President and Assistant Clerk Associate General Counsel (since April 2005); John Hancock Advisers, LLC, Senior Vice President, Secretary and Chief Legal Officer (prior to April 2005); John Hancock Group of Funds, Senior Vice President, Secretary and Chief Legal Officer (prior to April 2005) Susan A. Pereira(3) Assistant July 2005 Massachusetts Financial Services (born 11/05/70) Secretary and Company, Vice President and Senior Assistant Clerk Counsel (since June 2004); Bingham McCutchen LLP (law firm), Associate (January 2001 to June 2004); Preti, Flaherty, Beliveau, Pachios & Haley, LLC, Associate (prior to January 2001) Frank L. Tarantino Independent Chief June 2004 Tarantino LLC (provider of (born 03/07/44) Compliance compliance services), Principal Officer (since June 2004); CRA Business Strategies Group (consulting services), Executive Vice President (April 2003 to June 2004); David L. Babson & Co. (investment adviser), Managing Director, Chief Administrative Officer and Director (February 1997 to March 2003) James O. Yost(3) Assistant September 1990 Massachusetts Financial Services (born 06/12/60) Treasurer Company, Senior Vice President - ------------ (1) Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served continuously since appointment unless indicated otherwise. (2) Directorships or trusteeships of companies required to report to the Securities and Exchange Commission (i.e., "public companies"). (3) "Interested person" of the Trust within the meaning of the Investment Company Act of 1940 (referred to as the 1940 Act), which is the principal federal law governing investment companies like the fund, as a result of position with MFS. The address of MFS is 500 Boylston Street, Boston, Massachusetts 02116. Each Trustee has been elected by shareholders and each Trustee and officer holds office until his or her successor is chosen and qualified or until his or her earlier death, resignation, retirement or removal. Messrs. Ives and Sherratt and Mses. Lane and Thomsen are members of the Trust's Audit Committee. Each of the Trust's Trustees and officers holds comparable positions with certain other funds of which MFS or a subsidiary is the investment adviser or distributor, and, in the case of the officers, with certain affiliates of MFS. As of December 31, 2004, each Trustee served as a board member of 99 funds within the MFS Family of Funds. The Trust held a shareholders' meeting in 2005, and will hold a shareholders' meeting at least once every five years thereafter, to elect Trustees. The Statement of Additional Information contains further information about the Trustees and is available without charge upon request by calling 1-800-225-2606. - ------------------------------------------------------------------------------------------------------- INVESTMENT ADVISER CUSTODIAN Massachusetts Financial Services Company State Street Bank and Trust Company 500 Boylston Street, Boston, MA 225 Franklin Street, Boston, MA 02110 02116-3741 INDEPENDENT REGISTERED PUBLIC DISTRIBUTOR ACCOUNTING FIRM MFS Fund Distributors, Inc. Deloitte & Touche LLP 500 Boylston Street, Boston, MA 200 Berkeley Street, Boston, MA 02116 02116-3741 PORTFOLIO MANAGERS Edward L. O'Dette Terri A. Vitozzi BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT The Investment Company Act of 1940 requires that both the full Board of Trustees and a majority of the non-interested ("independent") Trustees, voting separately, annually approve the continuation of the Fund's investment advisory agreement with MFS. The Trustees consider matters bearing on the Fund and its advisory arrangements at their meetings throughout the year, including a review of performance data at each regular meeting. In addition, the independent Trustees met several times over the course of three months beginning in May and ending in July, 2005 ("contract review meetings") for the specific purpose of considering whether to approve the continuation of the investment advisory agreement for the Fund and the other investment companies that the Board oversees (the "MFS Funds"). The independent Trustees were assisted in their evaluation of the Fund's investment advisory agreement by independent legal counsel, from whom they received separate legal advice and with whom they met separately from MFS during various contract review meetings. The independent Trustees were also assisted in this process by the MFS Funds' Independent Chief Compliance Officer, a full-time senior officer appointed by and reporting to the independent Trustees. In connection with their deliberations regarding the continuation of the investment advisory agreement, the Trustees, including the independent Trustees, considered such information and factors as they believed, in light of the legal advice furnished to them and their own business judgment, to be relevant. The investment advisory agreement for the Fund was considered separately, although the Trustees also took into account the common interests of all MFS Funds in their review. As described below, the Trustees considered the nature, quality, and extent of the various investment advisory, administrative, and shareholder services performed by MFS under the existing investment advisory agreement and other arrangements with the Fund. In connection with their contract review meetings, the Trustees received and relied upon materials which included, among other items: (i) information provided by Lipper Inc. on the investment performance of the Fund for various time periods ended December 31, 2004 and the investment performance of a group of funds with substantially similar investment classifications/objectives (the "Lipper performance universe"), as well as the investment performance of a group of funds identified by objective criteria suggested by MFS ("peer funds"), (ii) information provided by Lipper Inc. on the Fund's advisory fees and other expenses and the advisory fees and other expenses of comparable funds identified by Lipper (the "Lipper expense group"), as well as the advisory fees and other expenses of peer funds identified by objective criteria suggested by MFS, (iii) information provided by MFS on the advisory fees of comparable portfolios of other clients of MFS, including institutional separate account and other clients, (iv) information as to whether and to what extent applicable expense waivers, reimbursements or fee "breakpoints" are observed for the Fund, (v) information regarding MFS' financial results and financial condition, including MFS' and certain of its affiliates' estimated profitability from services performed for the Fund and the MFS Funds as a whole, (vi) MFS' views regarding the outlook for the mutual fund industry and the strategic business plans of MFS, (vii) descriptions of various functions performed by MFS for the Funds, such as compliance monitoring and portfolio trading practices, and (viii) information regarding the overall organization of MFS, including information about MFS' senior management and other personnel providing investment advisory, administrative and other services to the Fund and the other MFS Funds. The comparative performance, fee and expense information prepared and provided by Lipper Inc. was not independently verified and the independent Trustees did not independently verify any information provided to them by MFS. The Trustees' conclusion as to the continuation of the investment advisory agreement was based on a comprehensive consideration of all information provided to the Trustees and not the result of any single factor. Some of the factors that figured particularly in the Trustees' deliberations are described below, although individual Trustees may have evaluated the information presented differently from one another, giving different weights to various factors. It is also important to recognize that the fee arrangements for the Fund and other MFS Funds are the result of years of review and discussion between the independent Trustees and MFS, that certain aspects of such arrangements may receive greater scrutiny in some years than others, and that the Trustees' conclusions may be based, in part, on their consideration of these same arrangements during the course of the year and in prior years. Based on information provided by Lipper Inc. and MFS, the Trustees reviewed the Fund's total return investment performance as well as the performance of peer groups of funds over various time periods. The Trustees placed particular emphasis on the total return performance of the Fund's Class A shares in comparison to the performance of funds in its Lipper performance universe over the three-year period ended December 31, 2004, which the Trustees believed was a long enough period to reflect differing market conditions. The Fund's performance was in the 38th percentile relative to the other funds in the universe for this three-year period (the 1st percentile being the best performers and the 100th percentile being the worst performers). The total return performance of the Fund's Class A shares was in the 16th percentile for the one-year period and the 45th percentile for the five-year period ended December 31, 2004 relative to the Lipper performance universe. Because of the passage of time, these performance results are likely to differ from the performance results for more recent periods, including those shown elsewhere in this report. In the course of their deliberations, the Trustees took into account information provided by MFS in connection with the contract review meetings, as well as during investment review meetings conducted with portfolio management personnel during the course of the year regarding the Fund's performance. After reviewing these and related factors, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that they were satisfied with MFS' responses and efforts relating to investment performance. In assessing the reasonableness of the Fund's advisory fee, the Trustees considered, among other information, the Fund's advisory fee and the total expense ratio of the Fund's Class A shares as a percentage of average net assets and the advisory fee and total expense ratios of peer groups of funds based on information provided by Lipper Inc. and MFS. The Trustees considered whether the Fund was subject to any fee waivers or reductions or expense limitations. The Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate was approximately at the Lipper expense group median, and the Fund's total expense ratio was lower than the Lipper expense group median. The Trustees also considered the advisory fees charged by MFS to institutional accounts. In comparing these fees, the Trustees considered information provided by MFS as to the generally broader scope of services provided by MFS to the Fund in comparison to institutional accounts, the higher demands placed on MFS' investment personnel and trading infrastructure as a result of the daily cash in-flows and out-flows of the Fund, and the impact on MFS and expenses associated with the more extensive regulatory regime to which the Fund is subject in comparison to institutional accounts. The Trustees also considered whether the Fund is likely to benefit from any economies of scale in the management of the Fund in the event of growth in assets of the Fund. They noted that the Fund's advisory fee rate schedule is not currently subject to any breakpoints. Taking into account fee waivers or reductions or expense limitations, if any, the Trustees determined not to recommend any advisory fee breakpoints for the Fund at this time. The Trustees also considered information prepared by MFS relating to MFS' costs and profits with respect to the Fund, the MFS Funds considered as a group, and other investment companies and accounts advised by MFS, as well as MFS' methodologies used to determine and allocate its costs to the MFS Funds, the Fund and other accounts and products for purposes of estimating profitability. After reviewing these and other factors described herein, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that the advisory fees charged to the Fund represent reasonable compensation in light of the nature and quality of the services being provided by MFS to the Fund. In addition, the Trustees considered MFS' resources and related efforts to continue to retain, attract and motivate capable personnel to serve the Fund. The Trustees also considered current and developing conditions in the financial services industry, including the entry into the industry of large and well-capitalized companies which are spending, and appear to be prepared to continue to spend, substantial sums to engage personnel and to provide services to competing investment companies. In this regard, the Trustees also considered the financial resources of MFS and its ultimate parent, Sun Life Financial Inc. The Trustees also considered the advantages and possible disadvantages to the Fund of having an adviser which also serves other investment companies as well as other accounts. The Trustees also considered the nature, quality, cost, and extent of administrative, transfer agency, and distribution services provided to the Fund by MFS and its affiliates under agreements and plans other than the investment advisory agreement, including any 12b-1 fees the Fund pays to MFS Fund Distributors, Inc., an affiliate of MFS. The Trustees also considered the nature, extent and quality of certain other services MFS performs or arranges for on the Fund's behalf, including securities lending programs, directed expense payment programs, class action recovery programs, and MFS' interaction with third-party service providers, principally custodians and sub-custodians. The Trustees concluded that the various non-advisory services provided by MFS and its affiliates on behalf of the Funds were satisfactory. The Trustees also considered benefits to MFS from the use of the Fund's portfolio brokerage commissions to pay for research and other similar services (including MFS' general policy to pay directly for third-party research), and various other factors. Additionally, the Trustees considered so-called "fall- out benefits" to MFS such as reputational value derived from serving as investment manager to the Fund. Based on their evaluation of factors that they deemed to be material, including those factors described above, the Board of Trustees, including a majority of the independent Trustees, concluded that the Fund's investment advisory agreement with MFS should be continued for an additional one-year period, commencing August 1, 2005. A discussion regarding the Board's most recent review and renewal of the Fund's investment advisory agreement will be available on or before December 1, 2005 by clicking on the fund's name under "Select a fund" on the MFS website (mfs.com). PROXY VOTING POLICIES AND INFORMATION A general description of the MFS funds' proxy voting policies and procedures is available without charge, upon request, by calling 1-800-225-2606, by visiting the Proxy Voting section of mfs.com or by visiting the SEC's Web site at http://www.sec.gov. Information regarding how the fund voted proxies relating to portfolio securities during the most recent twelve-month period ended June 30 is available without charge by visiting the Proxy Voting section of mfs.com or by visiting the SEC's Web site at http://www.sec.gov. QUARTERLY PORTFOLIO DISCLOSURE The fund will file a complete schedule of portfolio holdings with the Securities and Exchange Commission (the Commission) for the first and third quarters of each fiscal year on Form N-Q. The fund's Form N-Q may be reviewed and copied at the: Public Reference Room Securities and Exchange Commission Washington, D.C. 20549-0102 Information on the operation of the Public Reference Room may be obtained by calling the Commission at 1-800-SEC-0330. The fund's Form N-Q is available on the EDGAR database on the Commission's Internet website at http://www.sec.gov, and copies of this information may be obtained, upon payment of a duplicating fee, by electronic request at the following e-mail address: publicinfo@sec.gov or by writing the Public Reference Section at the above address. A shareholder can also obtain the quarterly portfolio holdings report at mfs.com. FEDERAL TAX INFORMATION (unaudited) In January 2006, shareholders will be mailed a Form 1099-DIV reporting the federal tax status of all distributions paid during the calendar year 2005. INVESTOR SERVICE Write to us at: MFS Service Center, Inc. P.O. Box 55824 Boston, MA 02205-5824 Type of Information Phone number Hours, Eastern Time - -------------------------------------------------------------------------------- General information 1-800-225-2606 8 a.m. to 8 p.m., any business day - -------------------------------------------------------------------------------- Speech- or hearing-impaired 1-800-637-6576 9 a.m. to 5 p.m., any business day - -------------------------------------------------------------------------------- Share prices, account 1-800-MFS-TALK balances exchanges (1-800-637-8255) 24 hours a day, 365 days a or stock and bond outlooks touch-tone required year - -------------------------------------------------------------------------------- M F S(SM) INVESTMENT MANAGEMENT(R) (C) 2005 MFS Investment Management(R) MFS(R) investment products are offered through MFS Fund Distributors, Inc., 500 Boylston Street, Boston, MA 02116. LMM-ANN-10/05 58M ITEM 2. CODE OF ETHICS. The Registrant has adopted a Code of Ethics pursuant to Section 406 of the Sarbanes-Oxley Act and as defined in Form N-CSR that applies to the Registrant's principal executive officer and principal financial and accounting officer. The Registrant has amended its Code of Ethics to reflect that the Registrant's Principal Financial Officer has changed. ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT. Mr. J. Atwood Ives and Mses. Amy B. Lane and Laurie J. Thomsen, members of the Audit Committee, have been determined by the Board of Trustees in their reasonable business judgment to meet the definition of "audit committee financial expert" as such term is defined in Form N-CSR. In addition, Mr. Ives and Mses. Lane and Thomsen are "independent" members of the Audit Committee as defined in Form N-CSR. ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES. ITEMS 4(a) THROUGH 4(d) AND 4(g): The Board of Trustees has appointed Deloitte & Touche LLP ("Deloitte") to serve as independent accountants to certain series of the Registrant and Ernst & Young LLP ("E&Y") to serve in the same capacity to certain other funds (the series referred to collectively as the "Funds" and singularly as a "Fund"). The tables below set forth the audit fees billed to the Funds as well as fees for non-audit services provided to the Funds and/or to the Funds' investment adviser, Massachusetts Financial Services Company ("MFS") and to various entities either controlling, controlled by, or under common control with MFS that provide ongoing services to the Funds ("MFS Related Entities"). For the fiscal years ended August 31, 2005 and 2004, audit fees billed to the Funds by Deloitte and E&Y were as follows: Audit Fees FEES BILLED BY DELOITTE: 2005 2004 ---- ---- MFS Cash Reserve Fund $23,660 $21,400 ------- ------- TOTAL $23,660 $21,400 Audit Fees FEES BILLED BY E&Y : 2005 2004 ---- ---- MFS Core Equity Fund $33,580 $30,600 MFS Core Growth Fund 33,580 30,600 MFS New Discovery Fund 33,580 30,600 MFS Research International 35,780 32,600 Fund MFS Strategic Growth Fund 33,580 30,600 MFS Technology Fund 33,580 30,600 MFS Value Fund 33,580 30,600 ------ ------ TOTAL $237,260 $216,200 For the fiscal years ended August 31, 2005 and 2004, fees billed by Deloitte and E&Y for audit-related, tax and other services provided to the Funds and for audit-related, tax and other services provided to MFS and MFS Related Entities were as follows: Audit-Related Fees(1) Tax Fees(2) All Other Fees(3) FEES BILLED BY DELOITTE: 2005 2004 2005 2004 2005 2004 ---- ---- ---- ---- ---- ---- To MFS Cash Reserve $0 $0 $7,500 $3,000 $0 $0 Fund To MFS and MFS Related $1,018716 $759,500 $62,000 $35,000 $617,000 $32,500 Entities of MFS Cash Reserve Fund* AGGREGATE FEES FOR NON-AUDIT SERVICES: 2005 2004 ---- ---- To MFS Cash Reserve Fund, $1,742,817 $891,500 MFS and MFS Related Entities# Audit-Related Fees(1) Tax Fees(2) All Other Fees(4) FEES BILLED BY E&Y: 2005 2004 2005 2004 2005 2004 ---- ---- ---- ---- ---- ---- To MFS Core Equity $0 $0 $9,080 $5,990 $63 $0 Fund To MFS Core Growth 0 0 9,080 5,990 228 0 Fund To MFS New Discovery 0 0 9,080 5,990 412 0 Fund To MFS Research 0 0 9,410 6,290 558 0 International Fund To MFS Strategic Growth 0 0 9,080 5,990 566 0 Fund To MFS Technology 0 0 9,080 5,990 55 0 Fund To MFS Value Fund 0 0 9,080 5,990 2,394 0 TOTAL FEES BILLED BY E&Y TO ABOVE FUND To MFS and MFS Related $0 $0 $0 $0 $607,919 $0 Entities of MFS Core Equity Fund* To MFS and MFS Related 0 0 0 0 607,919 0 Entities of MFS Core Growth Fund* To MFS and MFS Related 0 0 0 0 607,919 0 Entities of MFS New Discovery Fund* To MFS and MFS Related 0 0 0 0 607,919 0 Entities of MFS Research International Fund* To MFS and MFS Related 0 0 0 0 607,919 0 Entities of MFS Strategic Growth Fund* To MFS and MFS Related 0 0 0 0 607,919 0 Entities of MFS Technology Fund* To MFS and MFS Related 0 0 0 0 607,919 0 Entities of MFS Value Fund* AGGREGATE FEES FOR NON-AUDIT SERVICES: 2005 2004 ---- ---- To MFS Core Equity Fund, $632,562 $12,990 MFS and MFS Related Entities# To MFS Core Growth 632,727 12,990 Fund, MFS and MFS Related Entities# To MFS New Discovery 632,911 12,990 Fund, MFS and MFS Related Entities# To MFS Research 633,387 13,290 International Fund, MFS and MFS Related Entities# To MFS Strategic Growth 633,065 12,990 Fund, MFS and MFS Related Entities# To MFS Technology Fund, MFS 632,554 12,990 and MFS Related Entities# To MFS Value Fund, MFS and 634,893 12,990 MFS Related Entities# * This amount reflects the fees billed to MFS and MFS Related Entities for non-audit services relating directly to the operations and financial reporting of the Funds (portions of which services also related to the operations and financial reporting of other funds within the MFS Funds complex). # This amount reflects the aggregate fees billed by Deloitte and E&Y for non-audit services rendered to the Funds and for non-audit services rendered to MFS and the MFS Related Entities. (1) The fees included under "Audit-Related Fees" are fees related to assurance and related services that are reasonably related to the performance of the audit or review of financial statements, but not reported under "Audit Fees," including accounting consultations, agreed-upon procedure reports, attestation reports, comfort letters and internal control reviews. (2) The fees included under "Tax Fees" are fees associated with tax compliance, tax advice and tax planning, including services relating to the filing or amendment of federal, state or local income tax returns, regulated investment company qualification reviews and tax distribution and analysis. (3) The fees included under "All Other Fees" are fees for products and services provided by Deloitte other than those reported under "Audit Fees," "Audit-Related Fees" and "Tax Fees", including fees for services related to sales tax refunds, consultation on internal cost allocations, consultation on allocation of monies pursuant to an administrative proceeding regarding disclosure of brokerage allocation practices in connection with fund sales, and analysis of certain portfolio holdings verses investment styles. (4) The fees included under "All Other Fees" are fees for products and services provided by E&Y other than those reported under "Audit Fees," "Audit-Related Fees" and "Tax Fees", including fees for services related to analysis of fund administrative expenses, compliance program and records management projects. For periods prior to May 6, 2003, the amounts shown above under "Audit-Related Fees," "Tax Fees" and "All Other Fees" relate to permitted non-audit services that would have been subject to pre-approval if the Securities and Exchange Commission's rules relating to pre-approval of non-audit services had been in effect. ITEM 4(e)(1): Set forth below are the policies and procedures established by the Audit Committee of the Board of Trustees relating to the pre-approval of audit and non-audit related services: To the extent required by applicable law, pre-approval by the Audit Committee of the Board is needed for all audit and permissible non-audit services rendered to the Funds and all permissible non-audit services rendered to MFS or MFS Related Entities if the services relate directly to the operations and financial reporting of the Registrant. Pre-approval is currently on an engagement-by-engagement basis. In the event pre-approval of such services is necessary between regular meetings of the Audit Committee and it is not practical to wait to seek pre-approval at the next regular meeting of the Audit Committee, pre-approval of such services may be referred to the Chair of the Audit Committee for approval; provided that the Chair may not pre-approve any individual engagement for such services exceeding $50,000 or multiple engagements for such services in the aggregate exceeding $100,000 between such regular meetings of the Audit Committee. Any engagement pre-approved by the Chair between regular meetings of the Audit Committee shall be presented for ratification by the entire Audit Committee at its next regularly scheduled meeting. ITEM 4(e)(2): None, or 0%, of the services relating to the Audit-Related Fees, Tax Fees and All Other Fees paid by the Fund and MFS and MFS Related Entities relating directly to the operations and financial reporting of the Registrant disclosed above were approved by the audit committee pursuant to paragraphs (c)(7)(i)(C) of Rule 2-01 of Regulation S-X (which permits audit committee approval after the start of the engagement with respect to services other than audit, review or attest services, if certain conditions are satisfied). ITEM 4(f): Not applicable. ITEM 4(h): The Registrant's Audit Committee has considered whether the provision by a Registrant's independent registered public accounting firm of non-audit services to MFS and MFS Related Entities that were not pre-approved by the Committee (because such services were provided prior to the effectiveness of SEC rules requiring pre-approval or because such services did not relate directly to the operations and financial reporting of the Registrant) was compatible with maintaining the independence of the independent registered public accounting firm as the Registrant's principal auditors. ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS. Not applicable to the Registrant. ITEM 6. SCHEDULE OF INVESTMENTS A schedule of investments of the Registrant is included as part of the report to shareholders of such series under Item 1 of this Form N-CSR. ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES. Not applicable to the Registrant. ITEM 8. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES. Not applicable to the Registrant. ITEM 9. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT COMPANY AND AFFILIATED PURCHASERS. Not applicable to the Registrant. ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS. There were no material changes to the procedures by which shareholders may send recommendations to the Board for nominees to the Registrant's Board since the Registrant last provided disclosure as to such procedures in response to the requirements of Item 7(d)(2)(ii)(G) of Schedule 14A or this Item. ITEM 11. CONTROLS AND PROCEDURES. (a) Based upon their evaluation of the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940 (the "Act")) as conducted within 90 days of the filing date of this Form N-CSR, the registrant's principal financial officer and principal executive officer have concluded that those disclosure controls and procedures provide reasonable assurance that the material information required to be disclosed by the registrant on this report is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms. (b) There were no changes in the registrant's internal controls over financial reporting (as defined in Rule 30a-3(d) under the Act) that occurred during the second fiscal quarter covered by the report that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting. ITEM 12. EXHIBITS. (a) File the exhibits listed below as part of this Form. Letter or number the exhibits in the sequence indicated. (1) Any code of ethics, or amendment thereto, that is the subject of the disclosure required by Item 2, to the extent that the registrant intends to satisfy the Item 2 requirements through filing of an exhibit: Code of Ethics attached hereto. (2) A separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2 under the Act (17 CFR 270.30a-2): Attached hereto. (b) If the report is filed under Section 13(a) or 15(d) of the Exchange Act, provide the certifications required by Rule 30a-2(b) under the Act (17 CFR 270.30a-2(b)), Rule 13a-14(b) or Rule 15d-14(b) under the Exchange Act (17 CFR 240.13a-14(b) or 240.15d-14(b)) and Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) as an exhibit. A certification furnished pursuant to this paragraph will not be deemed "filed" for the purposes of Section 18 of the Exchange Act (15 U.S.C. 78r), or otherwise subject to the liability of that section. Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act of 1933 or the Exchange Act, except to the extent that the registrant specifically incorporates it by reference: Attached hereto. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. (Registrant) MFS SERIES TRUST I By (Signature and Title)* ROBERT J. MANNING ----------------------------------------------------- Robert J. Manning, President Date: October 24, 2005 ---------------- Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. By (Signature and Title)* ROBERT J. MANNING ----------------------------------------------------- Robert J. Manning, President (Principal Executive Officer) Date: October 24, 2005 ---------------- By (Signature and Title)* TRACY ATKINSON ----------------------------------------------------- Tracy Atkinson, Treasurer (Principal Financial Officer and Accounting Officer) Date: October 24, 2005 ---------------- * Print name and title of each signing officer under his or her signature.