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, 2007 - ------------------------------------------------------------------------------- * The MFS Strategic Growth Fund was reorganized into the MFS Core Growth Fund, both a series of MFS Series Trust I, as of June 22, 2007. A report for the MFS Strategic Growth Fund is not included because the Fund did not have any shareholders at period end. Please see note above. ITEM 1. REPORTS TO STOCKHOLDERS. M F S(R) INVESTMENT MANAGEMENT [graphic omitted] ANNUAL REPORT MFS(R) CORE EQUITY FUND LETTER FROM THE CEO 1 - -------------------------------------------------------------- PORTFOLIO COMPOSITION 2 - -------------------------------------------------------------- MANAGEMENT REVIEW 3 - -------------------------------------------------------------- PERFORMANCE SUMMARY 5 - -------------------------------------------------------------- EXPENSE TABLE 8 - -------------------------------------------------------------- PORTFOLIO OF INVESTMENTS 10 - -------------------------------------------------------------- STATEMENT OF ASSETS AND LIABILITIES 18 - -------------------------------------------------------------- STATEMENT OF OPERATIONS 21 - -------------------------------------------------------------- STATEMENTS OF CHANGES IN NET ASSETS 23 - -------------------------------------------------------------- FINANCIAL HIGHLIGHTS 24 - -------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS 30 - -------------------------------------------------------------- REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 42 - -------------------------------------------------------------- TRUSTEES AND OFFICERS 43 - -------------------------------------------------------------- BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT 49 - -------------------------------------------------------------- PROXY VOTING POLICIES AND INFORMATION 53 - -------------------------------------------------------------- QUARTERLY PORTFOLIO DISCLOSURE 53 - -------------------------------------------------------------- FEDERAL TAX INFORMATION 53 - -------------------------------------------------------------- MFS(R) PRIVACY NOTICE 54 - -------------------------------------------------------------- CONTACT INFORMATION BACK COVER - -------------------------------------------------------------- THE 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. - ------------------------------------------------------------------------------- NOT FDIC INSURED o MAY LOSE VALUE o NO BANK OR CREDIT UNION GUARANTEE o NOT A DEPOSIT o NOT INSURED BY ANY FEDERAL GOVERNMENT AGENCY OR NCUA/NCUSIF - ------------------------------------------------------------------------------- 8/31/07 RGI-ANN LETTER FROM THE CEO [Photo of Robert J. Manning] Dear Shareholders: The past year has been a great example of why investors should keep their eyes on the long term. In 2006 the Dow Jones Industrial Average returned 19%. But the Dow's upward rise has not been without hiccups. After hitting new records in July 2007, the Dow lost 8% in the following weeks as a crisis swept global credit markets. As we have said before, markets can be volatile, and investors should make sure they have an investment plan that can carry them through the peaks and troughs. If you are focused on a long-term investment strategy, the short-term ups and downs of the markets should not necessarily dictate portfolio action on your part. Both the bond and stock markets are cyclical. In our view, investors who remain committed to a long-term plan are more likely to achieve their financial goals. We believe you should not let the headlines guide you in your investment decisions and should be cautious about overreacting to short- term volatility. In any market environment, we believe individual investors are best served by following a three-pronged investment strategy of allocating their holdings across the major asset classes, diversifying within each class, and regularly rebalancing their portfolios to maintain their desired allocations. Of course, these strategies cannot guarantee a profit or protect against a loss. Investing and planning for the long term require diligence and patience, two traits that in our experience are essential to capitalizing on the many opportunities the financial markets can offer -- through both up and down economic cycles. Respectfully, /s/ Robert J. Manning Robert J. Manning Chief Executive Officer and Chief Investment Officer MFS Investment Management(R) October 15, 2007 The opinions expressed in this letter are subject to change, may not be relied upon for investment advice, and no forecasts can be guaranteed. PORTFOLIO COMPOSITION PORTFOLIO STRUCTURE Common Stocks 99.8% Cash & Other Net Assets 0.2% TOP TEN HOLDINGS Exxon Mobil Corp. 3.8% ------------------------------------------------ Danaher Corp. 2.6% ------------------------------------------------ AT&T, Inc. 1.9% ------------------------------------------------ Merck & Co., Inc. 1.9% ------------------------------------------------ Bank of America Corp. 1.7% ------------------------------------------------ Wyeth 1.6% ------------------------------------------------ Altria Group, Inc. 1.5% ------------------------------------------------ Hartford Financial Services Group, Inc. 1.5% ------------------------------------------------ United Technologies Corp. 1.4% ------------------------------------------------ Google, Inc., "A" 1.4% ------------------------------------------------ EQUITY SECTORS Financial Services 19.6% ------------------------------------------------ Technology 15.5% ------------------------------------------------ Health Care 11.2% ------------------------------------------------ Energy 9.8% ------------------------------------------------ Industrial Goods & Services 8.7% ------------------------------------------------ Utilities & Communications 8.1% ------------------------------------------------ Consumer Staples 6.7% ------------------------------------------------ Retailing 6.4% ------------------------------------------------ Leisure 5.3% ------------------------------------------------ Basic Materials 3.9% ------------------------------------------------ Special Products & Services 2.2% ------------------------------------------------ Transportation 1.7% ------------------------------------------------ Autos & Housing 0.7% ------------------------------------------------ Percentages are based on net assets as of 08/31/07. The portfolio is actively managed and current holdings may be different. MANAGEMENT REVIEW SUMMARY OF RESULTS For the twelve months ended August 31, 2007, Class A shares of the MFS Core Equity Fund provided a total return of 17.26%, at net asset value. This compares with a return of 14.94% for the fund's benchmark, the Russell 3000 Index. MARKET ENVIRONMENT The U.S. economy continues to decouple from the rest of the world, growing at a slower pace than other major economies. Overall, global economies have seen moderate to strong growth over the last twelve months as domestic demand improves and world trade accelerates. With the stronger growth, however, has come increased concern about rising global inflation, especially as capacity becomes more constrained, wages rise, and energy and food prices advance. Late in the reporting period, continued robust global growth and fears of rising inflationary pressures led global central banks to tighten monetary conditions beyond market expectations, which in turn pushed global bond yields to their highest levels during this economic expansion. However, beginning in late July and August, heightened uncertainty and distress concerning the subprime mortgage market caused several global credit markets to seize up, forcing central banks to inject liquidity and to reassess their tightening biases as sovereign bond yields plummeted and credit spreads widened considerably. Increased market volatility has been exacerbated by U.S. home foreclosures, falling housing prices, and weaker-than-expected jobs growth reported by the U.S. Department of Labor. Despite increased volatility across all asset classes, and the widening in credit spreads, global equity markets have experienced only a mild correction to date. CONTRIBUTORS TO PERFORMANCE For the MFS Core Equity Fund, the retailing, consumer staples, and utilities and communications sectors were the top contributors to performance relative to the benchmark during the reporting period. Stock selection played the principal role in each case. In the retailing sector, athletic shoes and apparel manufacturer Nike was among the portfolio's top relative contributors. A long-term market share gainer, Nike delivered strong growth in revenues, profits, and earnings over the reporting period. The company benefited from its continued sales growth in the brand's three core footwear lines which enjoyed powerful marketing support through their participation in key sporting events. Within the consumer staples sector, avoiding household products maker Proctor & Gamble for a majority of the period, boosted relative returns. The company's slowing growth led to its relative underperformance. In the utilities and communications sector, diversified communications and media company Rogers Communications(aa) was a top contributor. Shares of Rogers Communications gained on strong quarterly revenue growth driven by its wireless business. Stocks in other sectors that aided relative results included manufacturer of aerospace metal parts Precision Castparts, mining giant BHP Billiton(aa), customer support software provider Salesforce.com(g), package manufacturer Owens-Illinois, and agricultural equipment manufacturer Deere & Co.(g). Not owning poor-performing pharmaceutical giant Pfizer and financial services firm Citigroup also helped. DETRACTORS FROM PERFORMANCE Stock selection in the health care sector negatively impacted performance relative to the benchmark. Biotech firm Amgen and medical device makers, Advanced Medical Optics and Boston Scientific, were among the fund's top detractors. Shares of Amgen declined due, in part, to increasing pressure from the FDA on the company's anemia drugs and potential competition. Several individual securities within the financial services sector were among the fund's top detractors. These included mortgage lending firm Countrywide Financial, real estate firm Maguire Properties, financial services company Fremont General, and education loan provider SLM Corp. (Sallie Mae)(g). Shares of Countrywide Financial plummeted near the end of the reporting period due to industry-wide problems of falling mortgage demand, excess lending capacity, rising costs, and challenges in selling off loan portfolios in all segments (prime, sub-prime, and home equity) of the market. Elsewhere, flash memory storage products maker SanDisk and software firm MSC.Software held back relative returns. Respectfully, Katrina Mead Portfolio Manager (aa) Security is not a benchmark constituent. (g) 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 or 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 portfolio. References to specific securities are not recommendations of such securities, and may not be representative of any MFS portfolio's current or future investments. PERFORMANCE SUMMARY THROUGH 8/31/07 The following chart illustrates a representative class of the fund's historical performance 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. The performance of other share classes will be greater than or less than that of the class depicted below. Benchmark comparisons are unmanaged; do not reflect sales charges, commissions or expenses; and cannot be invested in directly. (See Notes to Performance Summary.) PERFORMANCE DATA SHOWN REPRESENTS PAST PERFORMANCE AND IS NO GUARANTEE OF FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE FLUCTUATE SO YOUR SHARES, WHEN SOLD, MAY BE WORTH MORE OR LESS THAN THE ORIGINAL COST; CURRENT PERFORMANCE MAY BE LOWER OR HIGHER THAN QUOTED. 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 MFS Core Equity Fund -- Class A Russell 300 Index 8/97 $ 9,425 $10,000 8/98 10,022 10,351 8/99 12,892 14,334 8/00 14,666 17,291 8/01 11,806 13,052 8/02 9,917 10,795 8/03 11,074 12,298 8/04 12,168 13,688 8/05 14,174 15,785 8/06 15,060 17,166 8/07 17,660 19,730 TOTAL RETURNS THROUGH 8/31/07 AVERAGE ANNUAL WITHOUT SALES CHARGE Share class Class inception date 1-yr 5-yr 10-yr - ---------------------------------------------------------------------------- A 1/02/96 17.26% 12.23% 6.48% - ---------------------------------------------------------------------------- B 1/02/97 16.49% 11.53% 5.78% - ---------------------------------------------------------------------------- C 1/02/97 16.50% 11.52% 5.77% - ---------------------------------------------------------------------------- I 1/02/97 17.63% 12.63% 6.83% - ---------------------------------------------------------------------------- R 12/31/02 17.14% 12.08% 6.41% - ---------------------------------------------------------------------------- R1 4/01/05 16.42% 11.45% 5.74% - ---------------------------------------------------------------------------- R2 4/01/05 16.81% 11.64% 5.83% - ---------------------------------------------------------------------------- R3 10/31/03 16.88% 11.80% 5.90% - ---------------------------------------------------------------------------- R4 4/01/05 17.22% 12.20% 6.47% - ---------------------------------------------------------------------------- R5 4/01/05 17.54% 12.37% 6.55% - ---------------------------------------------------------------------------- AVERAGE ANNUAL Comparative benchmark - ---------------------------------------------------------------------------- Russell 3000 Index (f) 14.94% 12.82% 7.03% - ---------------------------------------------------------------------------- AVERAGE ANNUAL WITH SALES CHARGE Share class - ---------------------------------------------------------------------------- A 10.52% 10.91% 5.85% With Initial Sales Charge (5.75%) - ---------------------------------------------------------------------------- B With CDSC (Declining over six years from 4% to 0%) (x) 12.49% 11.27% 5.78% - ---------------------------------------------------------------------------- C 15.50% 11.52% 5.77% With CDSC (1% for 12 months) (x) - ---------------------------------------------------------------------------- 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. CDSC - Contingent Deferred Sales Charge. (f) Source: FactSet Research Systems Inc. (x) Assuming redemption at the end of the applicable period. INDEX DEFINITION Russell 3000 Index - constructed to provide a comprehensive barometer for the 3,000 largest U.S. companies based on total market capitalization, which represents approximately 98% of the investable U.S. equity market. It is not possible to invest directly in an index. NOTES TO PERFORMANCE SUMMARY Performance for Classes R, R4, and R5 includes the performance of the fund's Class A shares for periods prior to their offering. Performance for Classes R1, R2, and R3 includes the performance of the fund's Class B 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, 2007 through August 31, 2007 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 (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, 2007 through August 31, 2007. ACTUAL EXPENSES The first line for each share class in the following table 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 following table 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). 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(p) Share Expense Account Value Account Value 3/01/07- Class Ratio 3/01/07 8/31/07 8/31/07 - -------------------------------------------------------------------------------- Actual 1.24% $1,000.00 $1,047.50 $6.40 A ------------------------------------------------------------------------ Hypothetical (h) 1.24% $1,000.00 $1,018.95 $6.31 - -------------------------------------------------------------------------------- Actual 1.88% $1,000.00 $1,044.60 $9.69 B ------------------------------------------------------------------------ Hypothetical (h) 1.88% $1,000.00 $1,015.73 $9.55 - -------------------------------------------------------------------------------- Actual 1.88% $1,000.00 $1,044.80 $9.69 C ------------------------------------------------------------------------ Hypothetical (h) 1.88% $1,000.00 $1,015.73 $9.55 - -------------------------------------------------------------------------------- Actual 0.90% $1,000.00 $1,049.60 $4.65 I ------------------------------------------------------------------------ Hypothetical (h) 0.90% $1,000.00 $1,020.67 $4.58 - -------------------------------------------------------------------------------- Actual 1.42% $1,000.00 $1,047.40 $7.33 R ------------------------------------------------------------------------ Hypothetical (h) 1.42% $1,000.00 $1,018.05 $7.22 - -------------------------------------------------------------------------------- Actual 2.00% $1,000.00 $1,044.10 $10.30 R1 ------------------------------------------------------------------------ Hypothetical (h) 2.00% $1,000.00 $1,015.12 $10.16 - -------------------------------------------------------------------------------- Actual 1.68% $1,000.00 $1,045.50 $8.66 R2 ------------------------------------------------------------------------ Hypothetical (h) 1.68% $1,000.00 $1,016.74 $8.54 - -------------------------------------------------------------------------------- Actual 1.56% $1,000.00 $1,046.10 $8.05 R3 ------------------------------------------------------------------------ Hypothetical (h) 1.56% $1,000.00 $1,017.34 $7.93 - -------------------------------------------------------------------------------- Actual 1.34% $1,000.00 $1,047.60 $6.92 R4 ------------------------------------------------------------------------ Hypothetical (h) 1.34% $1,000.00 $1,018.45 $6.82 - -------------------------------------------------------------------------------- Actual 1.04% $1,000.00 $1,049.40 $5.37 R5 ------------------------------------------------------------------------ Hypothetical (h) 1.04% $1,000.00 $1,019.96 $5.30 - -------------------------------------------------------------------------------- (h) 5% class return per year before expenses. (p) Expenses paid is equal to each class' annualized expense ratio, as shown above, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year. Expenses paid do not include any applicable sales charges (loads). If these transaction costs had been included, your costs would have been higher. PORTFOLIO OF INVESTMENTS 8/31/07 The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Common Stocks - 99.8% - --------------------------------------------------------------------------------------------------------------------------------- ISSUER SHARES/PAR VALUE ($) - --------------------------------------------------------------------------------------------------------------------------------- Aerospace - 2.9% - --------------------------------------------------------------------------------------------------------------------------------- Lockheed Martin Corp. (l) 104,790 $ 10,388,881 Precision Castparts Corp. (l) 62,620 8,160,012 United Technologies Corp. (l) 244,490 18,246,289 -------------- $ 36,795,182 - --------------------------------------------------------------------------------------------------------------------------------- Airlines - 0.3% - --------------------------------------------------------------------------------------------------------------------------------- Southwest Airlines Co. (l) 264,310 $ 3,993,724 - --------------------------------------------------------------------------------------------------------------------------------- Apparel Manufacturers - 0.7% - --------------------------------------------------------------------------------------------------------------------------------- NIKE, Inc., "B" 113,100 $ 6,372,054 Quiksilver, Inc. (a)(l) 187,180 2,506,340 -------------- $ 8,878,394 - --------------------------------------------------------------------------------------------------------------------------------- Biotechnology - 2.0% - --------------------------------------------------------------------------------------------------------------------------------- Amgen, Inc. (a) 223,760 $ 11,212,614 Celgene Corp. (a)(l) 73,710 4,732,919 Genzyme Corp. (a)(l) 150,401 9,386,526 -------------- $ 25,332,059 - --------------------------------------------------------------------------------------------------------------------------------- Broadcasting - 2.0% - --------------------------------------------------------------------------------------------------------------------------------- News Corp., "A" 564,990 $ 11,429,748 Viacom, Inc., "B" (a)(l) 214,589 8,467,682 Walt Disney Co. 161,130 5,413,968 -------------- $ 25,311,398 - --------------------------------------------------------------------------------------------------------------------------------- Brokerage & Asset Managers - 2.8% - --------------------------------------------------------------------------------------------------------------------------------- Affiliated Managers Group, Inc. (a)(l) 47,340 $ 5,361,255 Deutsche Boerse AG 54,650 6,031,310 Evercore Partners, Inc. (l) 180,760 3,786,922 Goldman Sachs Group, Inc. (l) 47,680 8,392,157 Legg Mason, Inc. (l) 82,090 7,127,054 TD AMERITRADE Holding Corp. (a)(l) 267,080 4,847,502 -------------- $ 35,546,200 - --------------------------------------------------------------------------------------------------------------------------------- Business Services - 1.4% - --------------------------------------------------------------------------------------------------------------------------------- Corporate Executive Board Co. (l) 84,310 $ 5,735,609 Fidelity National Information Services, Inc. (l) 99,710 4,726,254 Global Payments, Inc. (l) 84,510 3,336,455 Satyam Computer Services Ltd., ADR (l) 166,230 4,235,540 -------------- $ 18,033,858 - --------------------------------------------------------------------------------------------------------------------------------- Cable TV - 0.8% - --------------------------------------------------------------------------------------------------------------------------------- Cablevision Systems Corp., "A" (a)(l) 125,450 $ 4,208,848 Comcast Corp., "Special A" (a) 238,770 6,174,592 -------------- $ 10,383,440 - --------------------------------------------------------------------------------------------------------------------------------- Chemicals - 1.2% - --------------------------------------------------------------------------------------------------------------------------------- 3M Co. 86,600 $ 7,879,734 PPG Industries, Inc. (l) 98,030 7,190,501 -------------- $ 15,070,235 - --------------------------------------------------------------------------------------------------------------------------------- Computer Software - 3.8% - --------------------------------------------------------------------------------------------------------------------------------- ACI Worldwide, Inc. (a)(l) 162,150 $ 4,212,657 Adobe Systems, Inc. (a)(l) 222,353 9,505,591 CommVault Systems, Inc. (a)(l) 262,540 5,001,387 MSC.Software Corp. (a)(l) 1,319,457 16,691,131 Oracle Corp. (a) 487,939 9,895,403 VeriSign, Inc. (a) 107,551 3,463,142 -------------- $ 48,769,311 - --------------------------------------------------------------------------------------------------------------------------------- Computer Software - Systems - 3.9% - --------------------------------------------------------------------------------------------------------------------------------- Cray, Inc. (a)(l) 981,050 $ 6,926,213 EMC Corp. (a)(l) 680,440 13,377,450 International Business Machines Corp. (l) 138,430 16,153,397 Network Appliance, Inc. (a)(l) 488,032 13,596,572 -------------- $ 50,053,632 - --------------------------------------------------------------------------------------------------------------------------------- Construction - 0.7% - --------------------------------------------------------------------------------------------------------------------------------- D.R. Horton, Inc. (l) 145,980 $ 2,205,758 Masco Corp. (l) 257,170 6,691,563 -------------- $ 8,897,321 - --------------------------------------------------------------------------------------------------------------------------------- Consumer Goods & Services - 2.8% - --------------------------------------------------------------------------------------------------------------------------------- Colgate-Palmolive Co. 125,490 $ 8,322,497 New Oriental Education & Technology Group, Inc., ADR (a) 76,750 4,063,913 Procter & Gamble Co. (l) 254,730 16,636,416 Strayer Education, Inc. (l) 39,790 6,349,688 -------------- $ 35,372,514 - --------------------------------------------------------------------------------------------------------------------------------- Containers - 0.5% - --------------------------------------------------------------------------------------------------------------------------------- Owens-Illinois, Inc. (a)(l) 155,400 $ 6,250,188 - --------------------------------------------------------------------------------------------------------------------------------- Electrical Equipment - 4.0% - --------------------------------------------------------------------------------------------------------------------------------- Danaher Corp. (l) 426,710 $ 33,138,299 Rockwell Automation, Inc. (l) 212,450 14,969,227 WESCO International, Inc. (a)(l) 66,440 3,161,880 -------------- $ 51,269,406 - --------------------------------------------------------------------------------------------------------------------------------- Electronics - 4.0% - --------------------------------------------------------------------------------------------------------------------------------- Applied Materials, Inc. (l) 416,660 $ 8,899,858 Hittite Microwave Corp. (a)(l) 132,140 5,598,772 Intel Corp. (l) 654,960 16,865,220 Marvell Technology Group Ltd. (a) 338,170 5,603,477 SanDisk Corp. (a)(l) 180,960 10,144,618 Solectron Corp. (a)(l) 1,062,990 4,124,401 -------------- $ 51,236,346 - --------------------------------------------------------------------------------------------------------------------------------- Energy - Independent - 1.1% - --------------------------------------------------------------------------------------------------------------------------------- Apache Corp. 65,300 $ 5,052,914 CONSOL Energy, Inc. 62,610 2,496,887 Devon Energy Corp. (l) 84,400 6,356,164 -------------- $ 13,905,965 - --------------------------------------------------------------------------------------------------------------------------------- Energy - Integrated - 6.2% - --------------------------------------------------------------------------------------------------------------------------------- Exxon Mobil Corp. (l) 574,052 $ 49,213,478 Hess Corp. 257,430 15,798,479 Marathon Oil Corp. 259,370 13,977,449 -------------- $ 78,989,406 - --------------------------------------------------------------------------------------------------------------------------------- Engineering - Construction - 0.4% - --------------------------------------------------------------------------------------------------------------------------------- North American Energy Partners, Inc. (a) 304,690 $ 5,258,949 - --------------------------------------------------------------------------------------------------------------------------------- Food & Beverages - 3.2% - --------------------------------------------------------------------------------------------------------------------------------- Diamond Foods, Inc. (l) 158,420 $ 2,645,614 General Mills, Inc. (l) 182,370 10,190,836 Hain Celestial Group, Inc. (a)(l) 181,700 5,316,542 Kellogg Co. (l) 93,280 5,123,870 PepsiCo, Inc. 259,609 17,661,200 -------------- $ 40,938,062 - --------------------------------------------------------------------------------------------------------------------------------- Food & Drug Stores - 1.0% - --------------------------------------------------------------------------------------------------------------------------------- CVS Caremark Corp. 231,690 $ 8,762,516 SUPERVALU, Inc. (l) 102,380 4,315,317 -------------- $ 13,077,833 - --------------------------------------------------------------------------------------------------------------------------------- Gaming & Lodging - 1.1% - --------------------------------------------------------------------------------------------------------------------------------- International Game Technology (l) 88,950 $ 3,395,222 Marriott International, Inc., "A" (l) 88,400 3,926,728 Penn National Gaming, Inc. (a) 54,720 3,217,536 Royal Caribbean Cruises Ltd. (l) 93,900 3,571,017 -------------- $ 14,110,503 - --------------------------------------------------------------------------------------------------------------------------------- General Merchandise - 1.0% - --------------------------------------------------------------------------------------------------------------------------------- 99 Cents Only Stores (a)(l) 268,650 $ 3,317,828 Macy's, Inc. (l) 190,780 6,051,542 Stage Stores, Inc. 194,335 3,367,826 -------------- $ 12,737,196 - --------------------------------------------------------------------------------------------------------------------------------- Health Maintenance Organizations - 1.2% - --------------------------------------------------------------------------------------------------------------------------------- UnitedHealth Group, Inc. 153,050 $ 7,654,031 WellPoint, Inc. (a) 89,920 7,246,653 -------------- $ 14,900,684 - --------------------------------------------------------------------------------------------------------------------------------- Insurance - 4.8% - --------------------------------------------------------------------------------------------------------------------------------- Aflac, Inc. (l) 113,880 $ 6,070,943 Allied World Assurance Co. Holdings Ltd. (l) 169,200 8,124,984 Chubb Corp. (l) 256,630 13,121,492 Genworth Financial, Inc., "A" (l) 151,060 4,377,719 Hartford Financial Services Group, Inc. (l) 210,160 18,685,326 MetLife, Inc. (l) 119,570 7,658,459 MGIC Investment Corp. (l) 108,750 3,279,900 -------------- $ 61,318,823 - --------------------------------------------------------------------------------------------------------------------------------- Internet - 1.4% - --------------------------------------------------------------------------------------------------------------------------------- Google, Inc., "A" (a)(l) 34,500 $ 17,776,125 - --------------------------------------------------------------------------------------------------------------------------------- Leisure & Toys - 0.5% - --------------------------------------------------------------------------------------------------------------------------------- Ubisoft Entertainment S.A. (a) 102,501 $ 6,364,197 - --------------------------------------------------------------------------------------------------------------------------------- Machinery & Tools - 1.4% - --------------------------------------------------------------------------------------------------------------------------------- Bucyrus International, Inc. (l) 49,880 $ 3,117,001 Eaton Corp. (l) 104,270 9,824,319 Timken Co. (l) 146,130 5,196,383 -------------- $ 18,137,703 - --------------------------------------------------------------------------------------------------------------------------------- Major Banks - 5.1% - --------------------------------------------------------------------------------------------------------------------------------- Bank of America Corp. 431,280 $ 21,857,270 Bank of New York Mellon Corp. (l) 302,858 12,244,549 JPMorgan Chase & Co. (l) 393,920 17,537,318 State Street Corp. (l) 218,120 13,383,843 -------------- $ 65,022,980 - --------------------------------------------------------------------------------------------------------------------------------- Medical & Health Technology & Services - 0.6% - --------------------------------------------------------------------------------------------------------------------------------- DaVita, Inc. (a)(l) 24,800 $ 1,426,496 MWI Veterinary Supply, Inc. (a)(l) 175,952 6,680,897 -------------- $ 8,107,393 - --------------------------------------------------------------------------------------------------------------------------------- Medical Equipment - 2.4% - --------------------------------------------------------------------------------------------------------------------------------- Advanced Medical Optics, Inc. (a)(l) 228,200 $ 6,558,468 Aspect Medical Systems, Inc. (a)(l) 437,540 5,504,253 Boston Scientific Corp. (a)(l) 499,230 6,405,121 Cyberonics, Inc. (a)(l) 150,510 2,271,196 NxStage Medical, Inc. (a)(l) 124,680 1,548,526 St. Jude Medical, Inc. (a)(l) 117,970 5,139,953 Thoratec Corp. (a)(l) 174,930 3,615,803 -------------- $ 31,043,320 - --------------------------------------------------------------------------------------------------------------------------------- Metals & Mining - 1.3% - --------------------------------------------------------------------------------------------------------------------------------- BHP Billiton PLC 552,990 $ 16,269,364 - --------------------------------------------------------------------------------------------------------------------------------- Natural Gas - Distribution - 0.5% - --------------------------------------------------------------------------------------------------------------------------------- Questar Corp. (l) 133,160 $ 6,654,005 - --------------------------------------------------------------------------------------------------------------------------------- Natural Gas - Pipeline - 1.0% - --------------------------------------------------------------------------------------------------------------------------------- Williams Cos., Inc. (l) 398,280 $ 12,346,680 - --------------------------------------------------------------------------------------------------------------------------------- Network & Telecom - 2.4% - --------------------------------------------------------------------------------------------------------------------------------- Cisco Systems, Inc. (a) 348,180 $ 11,113,906 Motorola, Inc. (l) 221,100 3,747,645 NICE Systems Ltd., ADR (a)(l) 177,354 6,274,785 Nortel Networks Corp. (a)(l) 229,416 4,007,898 Sonus Networks, Inc. (a)(l) 883,690 5,107,728 -------------- $ 30,251,962 - --------------------------------------------------------------------------------------------------------------------------------- Oil Services - 2.5% - --------------------------------------------------------------------------------------------------------------------------------- Dresser-Rand Group, Inc. (a)(l) 82,340 $ 3,035,876 Exterran Holdings, Inc. (a) 38,600 2,991,500 Halliburton Co. 418,250 14,467,268 National Oilwell Varco, Inc. (a)(l) 33,690 4,312,320 Noble Corp. 152,520 7,482,631 -------------- $ 32,289,595 - --------------------------------------------------------------------------------------------------------------------------------- Other Banks & Diversified Financials - 5.0% - --------------------------------------------------------------------------------------------------------------------------------- American Express Co. (l) 298,560 $ 17,501,587 Commerce Bancorp, Inc. (l) 160,530 5,896,267 Countrywide Financial Corp. (l) 525,340 10,427,999 Euro Dekania Ltd., IEU (a)(z) 492,120 6,336,352 Fannie Mae (l) 228,160 14,969,578 Fremont General Corp. (l) 752,150 3,384,675 Oaktree Capital Management LLC (a)(z) 154,400 5,326,800 -------------- $ 63,843,258 - --------------------------------------------------------------------------------------------------------------------------------- Pharmaceuticals - 5.0% - --------------------------------------------------------------------------------------------------------------------------------- Abbott Laboratories 137,880 $ 7,157,351 Bristol-Myers Squibb Co. 295,110 8,602,457 Medicis Pharmaceutical Corp., "A" (l) 151,490 4,626,505 Merck & Co., Inc. (l) 473,440 23,752,485 Wyeth (l) 435,099 20,145,084 -------------- $ 64,283,882 - --------------------------------------------------------------------------------------------------------------------------------- Railroad & Shipping - 0.4% - --------------------------------------------------------------------------------------------------------------------------------- Burlington Northern Santa Fe Corp. (l) 60,080 $ 4,875,492 - --------------------------------------------------------------------------------------------------------------------------------- Real Estate - 1.9% - --------------------------------------------------------------------------------------------------------------------------------- BRE Properties, Inc., REIT (l) 139,560 $ 7,751,162 Mack-Cali Realty Corp., REIT (l) 231,180 9,654,077 Maguire Properties, Inc., REIT (l) 269,560 7,011,256 -------------- $ 24,416,495 - --------------------------------------------------------------------------------------------------------------------------------- Restaurants - 0.9% - --------------------------------------------------------------------------------------------------------------------------------- Panera Bread Co. (a)(l) 80,560 $ 3,523,694 Red Robin Gourmet Burgers, Inc. (a)(l) 153,820 5,917,455 Texas Roadhouse, Inc., "A" (a)(l) 187,400 2,400,594 -------------- $ 11,841,743 - --------------------------------------------------------------------------------------------------------------------------------- Specialty Chemicals - 0.9% - --------------------------------------------------------------------------------------------------------------------------------- Air Products & Chemicals, Inc. (l) 64,560 $ 5,811,046 Praxair, Inc. (l) 81,210 6,144,349 -------------- $ 11,955,395 - --------------------------------------------------------------------------------------------------------------------------------- Specialty Stores - 3.7% - --------------------------------------------------------------------------------------------------------------------------------- CarMax, Inc. (a) 163,500 $ 3,704,910 Dick's Sporting Goods, Inc. (a)(l) 60,840 3,948,516 Ethan Allen Interiors, Inc. 157,810 5,302,416 GameStop Corp., "A" (a)(l) 135,140 6,775,920 Lowe's Cos., Inc. (l) 350,120 10,874,727 Lululemon Athletica, Inc. (a) 31,530 1,074,227 Nordstrom, Inc. (l) 107,580 5,174,598 Staples, Inc. (l) 200,420 4,759,975 Urban Outfitters, Inc. (a)(l) 248,960 5,701,184 -------------- $ 47,316,473 - --------------------------------------------------------------------------------------------------------------------------------- Telecommunications - Wireless - 0.4% - --------------------------------------------------------------------------------------------------------------------------------- Rogers Communications, Inc., "B" 115,040 $ 5,231,867 - --------------------------------------------------------------------------------------------------------------------------------- Telephone Services - 3.1% - --------------------------------------------------------------------------------------------------------------------------------- AT&T, Inc. (l) 625,250 $ 24,928,718 Embarq Corp. (l) 61,920 3,865,046 Qwest Communications International, Inc. (a)(l) 678,270 6,070,517 TELUS Corp. (non-voting shares) 98,680 5,117,330 -------------- $ 39,981,611 - --------------------------------------------------------------------------------------------------------------------------------- Tobacco - 1.5% - --------------------------------------------------------------------------------------------------------------------------------- Altria Group, Inc. 277,130 $ 19,235,593 - --------------------------------------------------------------------------------------------------------------------------------- Trucking - 1.0% - --------------------------------------------------------------------------------------------------------------------------------- FedEx Corp. (l) 94,420 $ 10,355,986 Landstar System, Inc. (l) 61,410 2,641,244 -------------- $ 12,997,230 - --------------------------------------------------------------------------------------------------------------------------------- Utilities - Electric Power - 3.1% - --------------------------------------------------------------------------------------------------------------------------------- American Electric Power Co., Inc. (l) 175,990 $ 7,828,035 DPL, Inc. (l) 271,750 7,160,613 Entergy Corp. (l) 76,480 7,924,858 NRG Energy, Inc. (a) 199,170 7,586,385 Public Service Enterprise Group, Inc. (l) 105,210 8,941,787 -------------- $ 39,441,678 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL COMMON STOCKS (IDENTIFIED COST, $1,260,812,667) $1,276,114,670 - --------------------------------------------------------------------------------------------------------------------------------- Short-Term Obligations - 0.3% - --------------------------------------------------------------------------------------------------------------------------------- General Electric Capital Corp., 5.15%, due 9/04/07, at Amortized Cost and Value (y) $ 3,780,000 $ 3,778,378 - --------------------------------------------------------------------------------------------------------------------------------- Collateral for Securities Loaned - 21.2% - --------------------------------------------------------------------------------------------------------------------------------- Navigator Securities Lending Prime Portfolio, at Cost and Net Asset Value 271,318,543 $ 271,318,543 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL INVESTMENTS (IDENTIFIED COST, $1,535,909,588) (k) $1,551,211,591 - --------------------------------------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - (21.3)% (272,469,583) - --------------------------------------------------------------------------------------------------------------------------------- NET ASSETS - 100.0% $1,278,742,008 - --------------------------------------------------------------------------------------------------------------------------------- (a) Non-income producing security. (k) As of August 31, 2007, the fund had two securities that were fair valued, aggregating $11,663,152 and 0.75% of market value, in accordance with the policies adopted by the Board of Trustees. (l) All or a portion of this security is on loan. (y) The rate shown represents an annualized yield at time of purchase. (z) Restricted securities are not registered under the Securities Act of 1933 and are subject to legal restrictions on resale. These securities generally may be resold in transactions exempt from registration or to the public if the securities are subsequently registered. Disposal of these securities may involve time-consuming negotiations and prompt sale at an acceptable price may be difficult. The fund holds the following restricted securities: ACQUISITION ACQUISITION CURRENT TOTAL % OF RESTRICTED SECURITIES DATE COST MARKET VALUE NET ASSETS - -------------------------------------------------------------------------------------------------------------------------------- Euro Dekania Ltd., IEU 3/08/07 - 6/25/07 $7,015,361 $ 6,336,352 Oaktree Capital Management LLC 5/21/07 - 6/25/07 6,767,056 5,326,800 - -------------------------------------------------------------------------------------------------------------------------------- $11,663,152 0.91% The following abbreviations are used in this report and are defined: ADR American Depository Receipt IEU International Equity Unit REIT Real Estate Investment Trust SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENT OF ASSETS AND LIABILITIES At 8/31/07 This statement represents your fund's balance sheet, which details the assets and liabilities comprising the total value of the fund. ASSETS - ------------------------------------------------------------------------------------------------------- Investments, at value, including $270,639,614 of securities on loan (identified cost, $1,535,909,588) $1,551,211,591 Cash 8,596 Receivable for investments sold 5,897,589 Receivable for fund shares sold 793,118 Interest and dividends receivable 1,707,737 Other assets 1,403 - ------------------------------------------------------------------------------------------------------- Total assets $1,559,620,034 - ------------------------------------------------------------------------------------------------------- LIABILITIES - ------------------------------------------------------------------------------------------------------- Payable for investments purchased $5,778,821 Payable for fund shares reacquired 2,305,050 Collateral for securities loaned, at value (c) 271,318,543 Payable to affiliates Investment adviser 10,013 Management fee 40,951 Shareholder servicing costs 377,625 Distribution and service fees 39,138 Administrative services fee 1,116 Retirement plan administration and services fees 403 Payable for independent trustees' compensation 264,336 Accrued expenses and other liabilities 742,030 - ------------------------------------------------------------------------------------------------------- Total liabilities $280,878,026 - ------------------------------------------------------------------------------------------------------- Net assets $1,278,742,008 - ------------------------------------------------------------------------------------------------------- NET ASSETS CONSIST OF - ------------------------------------------------------------------------------------------------------- Paid-in capital $3,445,281,969 Unrealized appreciation (depreciation) on investments and translation of assets and liabilities in foreign currencies 15,298,387 Accumulated net realized gain (loss) on investments (2,181,620,880) Accumulated net investment loss (217,468) - ------------------------------------------------------------------------------------------------------- Net assets $1,278,742,008 - ------------------------------------------------------------------------------------------------------- Shares of beneficial interest outstanding 66,032,681 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class A shares - ------------------------------------------------------------------------------------------------------- Net assets $766,201,526 Shares outstanding 38,632,075 - ------------------------------------------------------------------------------------------------------- Net asset value per share $19.83 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25Xnet asset value per share) $21.04 - ------------------------------------------------------------------------------------------------------- Class B shares - ------------------------------------------------------------------------------------------------------- Net assets $325,524,918 Shares outstanding 17,580,924 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $18.52 - ------------------------------------------------------------------------------------------------------- Class C shares - ------------------------------------------------------------------------------------------------------- Net assets $107,947,505 Shares outstanding 5,854,336 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $18.44 - ------------------------------------------------------------------------------------------------------- Class I shares - ------------------------------------------------------------------------------------------------------- Net assets $27,543,975 Shares outstanding 1,340,693 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $20.54 - ------------------------------------------------------------------------------------------------------- Class R shares - ------------------------------------------------------------------------------------------------------- Net assets $5,932,550 Shares outstanding 301,446 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $19.68 - ------------------------------------------------------------------------------------------------------- Class R1 shares - ------------------------------------------------------------------------------------------------------- Net assets $2,542,679 Shares outstanding 137,803 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $18.45 - ------------------------------------------------------------------------------------------------------- Class R2 shares - ------------------------------------------------------------------------------------------------------- Net assets $1,528,404 Shares outstanding 82,088 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $18.62 - ------------------------------------------------------------------------------------------------------- Class R3 shares - ------------------------------------------------------------------------------------------------------- Net assets $9,491,806 Shares outstanding 485,953 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $19.53 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class R4 shares - ------------------------------------------------------------------------------------------------------- Net assets $31,962,798 Shares outstanding 1,614,064 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $19.80 - ------------------------------------------------------------------------------------------------------- Class R5 shares - ------------------------------------------------------------------------------------------------------- Net assets $65,847 Shares outstanding 3,299 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $19.96 - ------------------------------------------------------------------------------------------------------- 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. (c) Non-cash collateral not included. SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENT OF OPERATIONS Year ended 8/31/07 This statement describes how much your fund earned in investment income and accrued in expenses. It also describes any gains and/or losses generated by fund operations. NET INVESTMENT INCOME - ------------------------------------------------------------------------------------------------------- Income Dividends $6,445,520 Interest 410,432 Foreign taxes withheld (12,898) - ------------------------------------------------------------------------------------------------------- Total investment income $6,843,054 - ------------------------------------------------------------------------------------------------------- Expenses Management fee $2,855,082 Distribution and service fees 2,491,966 Shareholder servicing costs 757,300 Administrative services fee 87,283 Retirement plan administration and services fees 53,820 Independent trustees' compensation 12,778 Custodian fee 155,825 Shareholder communications 75,137 Auditing fees 50,072 Legal fees 40,609 Miscellaneous 189,652 - ------------------------------------------------------------------------------------------------------- Total expenses $6,769,524 - ------------------------------------------------------------------------------------------------------- Fees paid indirectly (6,486) Reduction of expenses by investment adviser (4,166) - ------------------------------------------------------------------------------------------------------- Net expenses $6,758,872 - ------------------------------------------------------------------------------------------------------- Net investment income $84,182 - ------------------------------------------------------------------------------------------------------- Statement of Operations - continued REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS - ------------------------------------------------------------------------------------------------------- Realized gain (loss) (identified cost basis) Investment transactions $114,266,908 Foreign currency transactions 18,201 - ------------------------------------------------------------------------------------------------------- Net realized gain (loss) on investments $114,285,109 - ------------------------------------------------------------------------------------------------------- Change in unrealized appreciation (depreciation) Investments $(101,717,561) Translation of assets and liabilities in foreign currencies (392) - ------------------------------------------------------------------------------------------------------- Net unrealized gain (loss) on investments $(101,717,953) - ------------------------------------------------------------------------------------------------------- Net realized and unrealized gain (loss) on investments and foreign currency $12,567,156 - ------------------------------------------------------------------------------------------------------- Change in net assets from operations $12,651,338 - ------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENTS OF CHANGES IN NET ASSETS These statements describe the increases and/or decreases in net assets resulting from operations, any distributions, and any shareholder transactions. YEARS ENDED 8/31 ----------------------------------- 2007 2006 CHANGE IN NET ASSETS FROM OPERATIONS - ------------------------------------------------------------------------------------------------------- Net investment income (loss) $84,182 $(135,899) Net realized gain (loss) on investments 114,285,109 22,210,793 Net unrealized gain (loss) on investments (101,717,953) (8,617,492) - ------------------------------------------------------------------------------------------------------- Change in net assets from operations $12,651,338 $13,457,402 - ------------------------------------------------------------------------------------------------------- DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions Class A $(10,891,644) $(6,566,925) Class B (3,614,424) (3,172,137) Class C (1,273,576) (835,667) Class I (376,619) (151,657) Class R (399,070) (292,512) Class R1 (34,465) (6,519) Class R2 (64,230) (2,469) Class R3 (96,597) (54,897) Class R4 (1,876,812) (2,358) Class R5 (4,256) (2,358) - ------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(18,631,693) $(11,087,499) - ------------------------------------------------------------------------------------------------------- Change in net assets from fund share transactions $1,037,237,225 $4,102,717 - ------------------------------------------------------------------------------------------------------- Total change in net assets $1,031,256,870 $6,472,620 - ------------------------------------------------------------------------------------------------------- NET ASSETS - ------------------------------------------------------------------------------------------------------- At beginning of period 247,485,138 241,012,518 At end of period (including accumulated net investment loss of $217,468 and $35,801, respectively) $1,278,742,008 $247,485,138 - ------------------------------------------------------------------------------------------------------- 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 life of a particular share class, if shorter). 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 share class (assuming reinvestment of all distributions) held for the entire period. CLASS A YEARS ENDED 8/31 ----------------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $18.17 $17.88 $15.35 $13.97 $12.51 - --------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.04 $0.03 $0.03 $0.03 $0.04 Net realized and unrealized gain (loss) on investments and foreign currency 3.01 1.06 2.50 1.35 1.42 - --------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.05 $1.09 $2.53 $1.38 $1.46 - --------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(1.39) $(0.80) $-- $-- $-- - --------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $19.83 $18.17 $17.88 $15.35 $13.97 - --------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 17.26 6.25 16.48 9.88(b) 11.67 - --------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.26 1.37 1.41 1.38 1.47 Expenses after expense reductions (f) 1.26 1.36 1.41 1.38 N/A Net investment income 0.22 0.15 0.17 0.22 0.29 Portfolio turnover 283 138 81 116 121 Net assets at end of period (000 Omitted) $766,202 $146,355 $141,808 $67,415 $53,704 - --------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS B YEARS ENDED 8/31 -------------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $17.16 $17.03 $14.71 $13.48 $12.14 - ------------------------------------------------------------------------------------------------------------------------------ INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------------ Net investment loss (d) $(0.08) $(0.09) $(0.08) $(0.06) $(0.04) Net realized and unrealized gain (loss) on investments and foreign currency 2.83 1.02 2.40 1.29 1.38 - ------------------------------------------------------------------------------------------------------------------------------ Total from investment operations $2.75 $0.93 $2.32 $1.23 $1.34 - ------------------------------------------------------------------------------------------------------------------------------ LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------------ From net realized gain on investments and foreign currency transactions $(1.39) $(0.80) $-- $-- $-- - ------------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $18.52 $17.16 $17.03 $14.71 $13.48 - ------------------------------------------------------------------------------------------------------------------------------ Total return (%) (r)(s)(t) 16.49 5.60 15.77 9.12(b) 11.04 - ------------------------------------------------------------------------------------------------------------------------------ RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------------ Expenses before expense reductions (f) 1.90 2.02 2.06 2.02 2.12 Expenses after expense reductions (f) 1.90 2.02 2.06 2.02 N/A Net investment loss (0.46) (0.50) (0.47) (0.43) (0.36) Portfolio turnover 283 138 81 116 121 Net assets at end of period (000 Omitted) $325,525 $49,192 $71,088 $73,395 $75,007 - ------------------------------------------------------------------------------------------------------------------------------ Financial Highlights - continued CLASS C YEARS ENDED 8/31 ------------------------------------------------------------------------ 2007 2006 2005 2004 2003 Net asset value, beginning of period $17.09 $16.97 $14.66 $13.43 $12.10 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.08) $(0.09) $(0.08) $(0.06) $(0.04) Net realized and unrealized gain (loss) on investments and foreign currency 2.82 1.01 2.39 1.29 1.37 - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.74 $0.92 $2.31 $1.23 $1.33 - ----------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(1.39) $(0.80) $-- $-- $-- - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $18.44 $17.09 $16.97 $14.66 $13.43 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 16.50 5.56 15.76 9.16(b) 10.99 - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.90 2.02 2.06 2.02 2.12 Expenses after expense reductions (f) 1.90 2.02 2.06 2.02 N/A Net investment loss (0.45) (0.50) (0.48) (0.43) (0.35) Portfolio turnover 283 138 81 116 121 Net assets at end of period (000 Omitted) $107,948 $16,613 $17,898 $15,990 $15,325 - ----------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS I YEARS ENDED 8/31 ------------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $18.72 $18.33 $15.68 $14.22 $12.69 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.11 $0.09 $0.09 $0.09 $0.08 Net realized and unrealized gain (loss) on investments and foreign currency 3.10 1.10 2.56 1.37 1.45 - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.21 $1.19 $2.65 $1.46 $1.53 - ----------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(1.39) $(0.80) $-- $-- $-- - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $20.54 $18.72 $18.33 $15.68 $14.22 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 17.63 6.66 16.90 10.27(b) 12.06 - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 0.92 1.01 1.09 1.03 1.12 Expenses after expense reductions (f) 0.92 1.01 1.09 1.03 N/A Net investment income 0.58 0.50 0.51 0.56 0.65 Portfolio turnover 283 138 81 116 121 Net assets at end of period (000 Omitted) $27,544 $4,763 $3,170 $460 $398 - ----------------------------------------------------------------------------------------------------------------------------- Financial Highlights - continued CLASS R YEARS ENDED 8/31 ------------------------------------------------------------------------ 2007 2006 2005 2004 2003(i) Net asset value, beginning of period $18.06 $17.80 $15.31 $13.96 $11.98 - --------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------- Net investment income (loss) (d) $0.03 $0.00(w) $0.00(w) $0.02 $(0.00)(w) Net realized and unrealized gain (loss) on investments and foreign currency 2.98 1.06 2.49 1.33 1.98(g) - --------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.01 $1.06 $2.49 $1.35 $1.98 - --------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(1.39) $(0.80) $-- $-- $-- - --------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $19.68 $18.06 $17.80 $15.31 $13.96 - --------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 17.14 6.11 16.26 9.67(b) 16.53(n) - --------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.45 1.51 1.56 1.49 1.74(a) Expenses after expense reductions (f) 1.45 1.51 1.56 1.49 N/A Net investment income (loss) 0.14 0.00(w) 0.03 0.13 (0.04)(a) Portfolio turnover 283 138 81 116 121 Net assets at end of period (000 Omitted) $5,933 $5,446 $5,888 $3,030 $17 - --------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R1 YEARS ENDED 8/31 ------------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $17.11 $17.01 $16.25 - ------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.09) $(0.10) $(0.04) Net realized and unrealized gain (loss) on investments and foreign currency 2.82 1.00 0.80(g) - ------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.73 $0.90 $0.76 - ------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(1.39) $(0.80) $-- - ------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $18.45 $17.11 $17.01 - ------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 16.42 5.43 4.68(n) - ------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 2.05 2.20 2.23(a) Expenses after expense reductions (f) 2.02 2.11 2.23(a) Net investment loss (0.51) (0.61) (0.63)(a) Portfolio turnover 283 138 81 Net assets at end of period (000 Omitted) $2,543 $441 $55 - ------------------------------------------------------------------------------------------------------------------- Financial Highlights - continued CLASS R2 YEARS ENDED 8/31 --------------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $17.20 $17.03 $16.25 - ------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.02) $(0.05) $(0.02) Net realized and unrealized gain (loss) on investments and foreign currency 2.83 1.02 0.80(g) - ------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.81 $0.97 $0.78 - ------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(1.39) $(0.80) $-- - ------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $18.62 $17.20 $17.03 - ------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 16.81 5.85 4.80(n) - ------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.78 1.90 1.93(a) Expenses after expense reductions (f) 1.70 1.75 1.93(a) Net investment loss (0.11) (0.29) (0.33)(a) Portfolio turnover 283 138 81 Net assets at end of period (000 Omitted) $1,528 $780 $52 - ------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R3 YEARS ENDED 8/31 ------------------------------------------------------------- 2007 2006 2005 2004(i) Net asset value, beginning of period $17.97 $17.74 $15.29 $14.57 - ------------------------------------------------------------------------------------------------------------------------ INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------ Net investment income (loss) (d) $(0.01) $(0.03) $(0.04) $0.03 Net realized and unrealized gain (loss) on investments and foreign currency 2.96 1.06 2.49 0.69(g) - ------------------------------------------------------------------------------------------------------------------------ Total from investment operations $2.95 $1.03 $2.45 $0.72 - ------------------------------------------------------------------------------------------------------------------------ LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------ From net realized gain on investments and foreign currency transactions $(1.39) $(0.80) $-- $-- - ------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $19.53 $17.97 $17.74 $15.29 - ------------------------------------------------------------------------------------------------------------------------ Total return (%) (r)(s) 16.88 5.96 16.02 4.94(b)(n) - ------------------------------------------------------------------------------------------------------------------------ RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------ Expenses before expense reductions (f) 1.61 1.77 1.81 1.80(a) Expenses after expense reductions (f) 1.58 1.67 1.81 1.80(a) Net investment income (loss) (0.05) (0.15) (0.22) 0.27(a) Portfolio turnover 283 138 81 116 Net assets at end of period (000 Omitted) $9,492 $1,193 $948 $616 - ------------------------------------------------------------------------------------------------------------------------ Financial Highlights - continued CLASS R4 YEARS ENDED 8/31 ------------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $18.15 $17.88 $17.02 - ------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.05 $0.05 $0.01 Net realized and unrealized gain (loss) on investments and foreign currency 2.99 1.02 0.85(g) - ------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.04 $1.07 $0.86 - ------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(1.39) $(0.80) $-- - ------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $19.80 $18.15 $17.88 - ------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 17.22 6.14 5.05(n) - ------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.36 1.37 1.43(a) Expenses after expense reductions (f) 1.36 1.37 1.43(a) Net investment income 0.24 0.27 0.17(a) Portfolio turnover 283 138 81 Net assets at end of period (000 Omitted) $31,963 $22,646 $53 - ------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R5 YEARS ENDED 8/31 ------------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $18.24 $17.90 $17.02 - ------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.11 $0.07 $0.03 Net realized and unrealized gain (loss) on investments and foreign currency 3.00 1.07 0.85(g) - ------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.11 $1.14 $0.88 - ------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(1.39) $(0.80) $-- - ------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $19.96 $18.24 $17.90 - ------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 17.54 6.54 5.17(n) - ------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.06 1.12 1.13(a) Expenses after expense reductions (f) 1.06 1.12 1.13(a) Net investment income 0.55 0.40 0.47(a) Portfolio turnover 283 138 81 Net assets at end of period (000 Omitted) $66 $56 $53 - ------------------------------------------------------------------------------------------------------------------- Any redemption fees charged by the fund during the 2004 and 2005 fiscal years resulted in a per share impact of less than $0.01. (a) Annualized. (b) 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. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (g) 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 per share amount of realized and unrealized gains and losses at such time. (i) 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. (n) Not annualized. (r) Certain expenses have been reduced without which performance would have been lower. (s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. (t) Total returns do not include any applicable sales charges. (w) Per share amount was 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 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, including securities of emerging market issuers. 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. The markets of emerging markets countries are generally more volatile than the markets of developed countries with more mature economies. All of the risks of investing in foreign securities previously described are heightened when investing in emerging markets countries. INVESTMENT VALUATIONS - Equity securities, including restricted equity securities, are generally valued at the last sale or official closing price as reported by an independent pricing service on the market or exchange on which they are primarily traded. For securities for which there were no sales reported that day, equity securities are generally valued at the last quoted daily bid quotation as reported by an independent pricing service on the market or exchange on which they are primarily traded. For securities held short for which there were no sales reported for the day, the position is generally valued at the last quoted daily ask quotation as reported by an independent pricing service on the market or exchange on which such securities are primarily traded. Short-term instruments with a maturity at issuance of 60 days or less may be valued at amortized cost, which approximates market value. Open-end investment companies are generally valued at their net asset value per share. Securities and other assets generally valued on the basis of information from an independent pricing service may also be valued at a broker-dealer bid quotation. The values of foreign securities and other assets and liabilities expressed in foreign currencies are converted to U.S. dollars using the mean of bid and asked prices for rates reported by an independent pricing service. The Board of Trustees has delegated primary responsibility for determining or causing to be determined the value of the fund's investments (including any fair valuation) to the adviser pursuant to valuation policies and procedures approved by the Board. If the adviser determines that reliable market quotations are not readily available, investments are valued at fair value as determined in good faith by the adviser in accordance with such procedures under the oversight of the Board of Trustees. Under the fund's valuation policies and procedures, market quotations are not considered to be readily available for many types of debt instruments and certain types of derivatives. These investments are generally valued at fair value based on information from independent pricing services. In addition, investments may be valued at fair value if the adviser determines that an investment's value has been materially affected by events occurring after the close of the exchange or market on which the investment is principally traded (such as foreign exchange or market) and prior to the determination of the fund's net asset value, or after the halting of trading of a specific security where trading does not resume prior to the close of the exchange or market on which the security is principally traded. Events that occur on a frequent basis after foreign markets close (such as developments in foreign markets and significant movements in the U.S. markets) and prior to the determination of the fund's net asset value may be deemed to have a material affect on the value of securities traded in foreign markets. Accordingly, the fund's foreign equity securities may often be valued at fair value. The adviser may rely on independent pricing services or other information (such as the correlation with price movements of similar securities in the same or other markets; the type, cost and investment characteristics of the security; the business and financial condition of the issuer; and trading and other market data) to assist in determining whether to fair value and at what value to fair value an investment. The value of an investment for purposes of calculating the fund's net asset value can differ depending on the source and method used to determine value. When fair valuation is used, the value of investments used to determine the fund's net asset value may differ from quoted or published prices for the same investments. In September 2006, FASB Statement No. 157, Fair Value Measurements (the "Statement") was issued, and is effective for fiscal years beginning after November 15, 2007 and for all interim periods within those fiscal years. This Statement provides a single definition of fair value, a hierarchy for measuring fair value and expanded disclosures about fair value measurements. Management is evaluating the application of the Statement to the fund, and believes the impact will be limited to expanded disclosures resulting from the adoption of this Statement in the fund's financial statements. 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 and other funds managed by 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. Net 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, 2007, the value of securities loaned was $270,639,614. These loans were collateralized by cash of $271,318,543 and U.S. Treasury obligations of $5,954,888. INDEMNIFICATIONS - Under the fund's organizational documents, its officers and trustees may be indemnified against certain liabilities and expenses arising out of the performance of their duties to the fund. Additionally, in the normal course of business, the fund enters into agreements with service providers that may contain indemnification clauses. The fund's maximum exposure under these agreements is unknown as this would involve future claims that may be made against the fund that have not yet occurred. 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. Certain dividends from foreign securities will be recorded when the fund is informed of the dividend if such information is obtained subsequent to 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. Any proceeds received from litigation involving portfolio holdings are reflected in the Statement of Operations in realized gain/loss if the security has been disposed of by the fund or in unrealized gain/loss if the security is still held by the fund. Any other proceeds from litigation not related to portfolio holdings are reflected as other income in the Statement of Operations. 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. This amount, for the year ended August 31, 2007, is shown as a reduction of total expenses on the Statement of Operations. TAX MATTERS AND DISTRIBUTIONS - The fund intends to qualify as a regulated investment company, as defined under Subchapter M of the Internal Revenue Code, and to distribute all of its taxable income, including realized capital gains. Accordingly, no provision for federal income tax is required in the financial statements. Foreign taxes, if any, have been accrued by the fund in the accompanying financial statements. Distributions to shareholders are recorded on the ex-dividend date. Income and capital gain distributions are determined in accordance with income tax regulations, which may differ from U.S. generally accepted accounting principles. Certain capital accounts in the financial statements are periodically adjusted for permanent differences in order to reflect their tax character. These adjustments have no impact on net assets or net asset value per share. Temporary differences which arise from recognizing certain items of income, expense, gain or loss in different periods for financial statement and tax purposes will reverse at some time in the future. Distributions in excess of net investment income or net realized gains are temporary overdistributions for financial statement purposes resulting from differences in the recognition or classification of income or distributions for financial statement and tax purposes. Book/tax differences primarily relate to wash sale loss deferrals and capital loss carryforward and wash sale deferrals assumed as a result of the acquisition of MFS Capital Opportunities Fund. The tax character of distributions declared to shareholders is as follows: 8/31/07 8/31/06 Ordinary income (including any short-term capital gains) $5,799,254 $-- Long-term capital gain 12,832,439 11,087,499 -------------------------------------------------------------- Total distributions $18,631,693 $11,087,499 The federal tax cost and the tax basis components of distributable earnings were as follows: AS OF 8/31/07 Cost of investments $1,540,628,073 -------------------------------------------------------------- Gross appreciation $67,972,646 Gross depreciation (57,389,128) -------------------------------------------------------------- Net unrealized appreciation (depreciation) $10,583,518 Undistributed ordinary income 17,431,786 Undistributed long-term capital gain 74,982,219 Capital loss carryforwards (2,269,307,497) Other temporary differences (229,987) As of August 31, 2007, the fund had capital loss carryforwards available to offset future realized gains. Such losses expire as follows: 8/31/08 $(598,681,443) 8/31/09 (1,596,472,098) 8/31/10 (74,153,956) --------------------------------------------- $(2,269,307,497) The availability of a portion of the capital loss carryforwards, which were acquired on June 22, 2007 in connection with the MFS Capital Opportunities Fund merger, may be limited in a given year. In June 2006, FASB Interpretation No. 48, Accounting for Uncertainty in Income Taxes (the "Interpretation") was issued, and is effective for fiscal years beginning after December 15, 2006 and is to be applied to all open tax years as of the effective date. On December 22, 2006, the SEC delayed the implementation of the Interpretation for regulated investment companies for an additional six months. This Interpretation prescribes a minimum threshold for financial statement recognition of the benefit of a tax position taken or expected to be taken in a tax return, and requires certain expanded disclosures. Management has evaluated the application of the Interpretation to the fund, and has determined that there is no impact resulting from the adoption of this Interpretation on the fund's financial statements. 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 management and related administrative services and facilities to the fund. The management fee is computed daily and paid monthly at the following annual rates: First $500 million of average daily net assets 0.65% Average daily net assets in excess of $500 million 0.55% The management fee incurred for the year ended August 31, 2007 was equivalent to an annual effective rate of 0.62% of the fund's average daily net assets. Effective June 23, 2007, the investment adviser has agreed in writing to pay a portion of the fund's operating expenses, exclusive of certain other fees and expenses, such that total annual fund operating expenses do not exceed the following rates annually of the fund's average daily net assets with respect to each class: CLASS A CLASS B CLASS C CLASS I CLASS R CLASS R1 CLASS R2 CLASS R3 CLASS R4 CLASS R5 1.21% 1.86% 1.86% 0.86% 1.36% 1.96% 1.61% 1.51% 1.26% 0.96% This written agreement will continue through February 28, 2009 unless changed or rescinded by the fund's Board of Trustees. For the year ended August 31, 2007, the fund's actual operating expenses did not exceed the limit and therefore, the investment adviser did not pay any portion of the fund's expenses. DISTRIBUTOR - MFS Fund Distributors, Inc. (MFD), a wholly-owned subsidiary of MFS, as distributor, received $34,199 for the year ended August 31, 2007, 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 MFD and another component of the plan is a service fee paid to MFD. MFD may subsequently pay all, or a portion, of the distribution and/or service fees to financial intermediaries. Distribution Fee Plan Table: TOTAL ANNUAL DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE AND SERVICE FEE RATE FEE RATE PLAN (d) RATE (e) FEE Class A 0.10% 0.25% 0.35% 0.35% $958,165 Class B 0.75% 0.25% 1.00% 1.00% 1,053,207 Class C 0.75% 0.25% 1.00% 1.00% 356,898 Class R 0.25% 0.25% 0.50% 0.50% 28,416 Class R1 0.50% 0.25% 0.75% 0.75% 5,734 Class R2 0.25% 0.25% 0.50% 0.50% 4,684 Class R3 0.25% 0.25% 0.50% 0.50% 14,048 Class R4 -- 0.25% 0.25% 0.25% 70,814 - --------------------------------------------------------------------------------------------------------------------- Total Distribution and Service Fees $2,491,966 (d) 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. (e) The annual effective rates represent actual fees incurred under the distribution plan for the year ended August 31, 2007 based on each class' average daily net assets. Assets attributable to Class A shares sold prior to October 1, 1989 with respect to shares that were acquired as part of the reorganization of MFS Capital Opportunities Fund into MFS Core Equity Fund are subject to a service fee of 0.15% annually. 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 of purchase. Class B shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within six years of purchase. All contingent deferred sales charges are paid to MFD and during the year ended August 31, 2007, were as follows: AMOUNT Class A $2,598 Class B 74,707 Class C 1,641 SHAREHOLDER SERVICING AGENT - MFS Service Center, Inc. (MFSC), a wholly-owned subsidiary of MFS, receives a fee from the fund for its services as shareholder servicing agent calculated as a percentage of the average daily net assets of the fund as determined periodically under the supervision of the fund's Board of Trustees. For the year ended August 31, 2007, the fee was $250,096, which equated to 0.0539% annually of the fund's average daily net assets. MFSC also receives payment from the fund for out-of-pocket expenses, sub-accounting and other shareholder servicing costs which may be paid to affiliated and unaffiliated service providers. For the year ended August 31, 2007, these out-of-pocket expenses, sub-accounting and other shareholder servicing costs amounted to $482,404. The fund may also pay shareholder servicing related costs directly to non-related parties. ADMINISTRATOR - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to the fund. Under an administrative services agreement, the fund partially reimburses MFS the costs incurred to provide these services. The fund is charged a fixed amount plus a fee based on average daily net assets. The fund's annual fixed amount is $17,500. The administrative services fee incurred for the year ended August 31, 2007 was equivalent to an annual effective rate of 0.0188% 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 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. MFS may subsequently pay all, or a portion, of the retirement plan administration and services fee to affiliated or unaffiliated third parties. For the year ended August 31, 2007, the fund paid MFS an annual retirement plan administration and services fee up to the following annual percentage rates of each class' average daily net assets: BEGINNING OF ANNUAL PERIOD THROUGH EFFECTIVE EFFECTIVE TOTAL 3/31/07 4/01/07 RATE (g) AMOUNT Class R1 0.45% 0.35% 0.35% $2,941 Class R2 0.40% 0.25% 0.25% 3,099 Class R3 0.25% 0.15% 0.15% 5,227 Class R4 0.15% 0.15% 0.15% 42,490 Class R5 0.10% 0.10% 0.10% 63 - ------------------------------------------------------------------------------- Total Retirement Plan Administration and Services Fees $53,820 (g) Prior to April 1, 2007, MFS had agreed in writing to waive a portion of the retirement plan administration and services fee equal to 0.10% for Class R1, 0.15% for Class R2, and 0.10% for Class R3 shares. This agreement was discontinued on March 31, 2007. On April 1, 2007, the annual retirement plan administration and services fee for Class R1, Class R2, and Class R3 shares was lowered to 0.35%, 0.25%, and 0.15%, respectively. For the year ended August 31, 2007, the waiver amounted to $2,028 and is reflected as a reduction of total expenses in the Statement of Operations. TRUSTEES' AND OFFICERS' 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 or officers of the fund who are also officers of the investment adviser, 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 certain retired independent trustees which resulted in a pension expense of $2,808. The fund also has an unfunded retirement benefit deferral plan for certain independent trustees which resulted in a net decrease in expense of $2,610. Both amounts are included in independent trustees' compensation for the year ended August 31, 2007. The liability for deferred retirement benefits payable to certain independent trustees under both plans amounted to $264,306 at August 31, 2007, and is included in payable for independent 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. The funds can terminate the Agreement with Tarantino LLC at any time under the terms of the Agreement. For the year ended August 31, 2007, the fee paid to Tarantino LLC was $2,526. MFS has agreed to reimburse the fund for a portion of the payments made by the funds to Tarantino LLC in the amount of $2,138, 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. (4) PORTFOLIO SECURITIES Purchases and sales of investments, other than U.S. government securities, purchased option transactions, and short-term obligations, aggregated $1,236,594,874 and $1,191,631,666, respectively. (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 YEAR ENDED 8/31/07 8/31/06 SHARES AMOUNT SHARES AMOUNT Shares sold Class A 7,381,576 $149,818,565 2,443,666 $43,867,932 Class B 1,701,468 32,486,236 811,627 13,942,781 Class C 292,928 5,442,264 262,041 4,460,022 Class I 961,921 20,405,548 125,891 2,329,642 Class R 266,922 5,440,639 111,566 1,994,369 Class R1 149,688 2,801,842 26,009 443,322 Class R2 46,945 860,796 44,042 755,492 Class R3 524,954 10,284,549 35,849 633,797 Class R4 830,328 16,026,749 1,555,647 28,508,981 Class R5 -- -- 3 81 - ---------------------------------------------------------------------------------------------------------- 12,156,730 $243,567,188 5,416,341 $96,936,419 Shares issued in connection with acquisition of MFS Capital Opportunities Fund Class A 29,207,075 $592,904,669 Class B 15,751,262 298,888,929 Class C 5,090,987 96,202,011 Class I 186,848 3,926,430 Class R 1,495 30,134 Class R1 -- -- Class R2 1,572 29,984 Class R3 -- -- Class R4 -- -- Class R5 -- -- - ------------------------------------------------------------------------- 50,239,239 $991,982,157 YEAR ENDED YEAR ENDED 8/31/07 8/31/06 SHARES AMOUNT SHARES AMOUNT Shares issued to shareholders in reinvestment of distributions Class A 552,563 $10,288,726 355,194 $6,254,963 Class B 183,403 3,202,212 171,172 2,860,279 Class C 61,738 1,073,622 42,451 706,380 Class I 16,270 312,870 6,859 124,080 Class R 21,583 399,070 16,688 292,512 Class R1 1,980 34,465 395 6,519 Class R2 3,664 64,230 148 2,469 Class R3 5,148 94,569 3,146 54,897 Class R4 100,759 1,873,116 134 2,358 Class R5 228 4,256 134 2,358 - ---------------------------------------------------------------------------------------------------------- 947,336 $17,347,136 596,321 $10,306,815 Shares reacquired Class A (6,562,526) $(129,813,745) (2,675,775) $(47,849,495) Class B (2,922,613) (54,284,021) (2,289,768) (38,886,362) Class C (563,543) (10,346,548) (387,175) (6,483,150) Class I (78,815) (1,615,830) (51,250) (948,111) Class R (290,050) (5,664,197) (157,462) (2,824,272) Class R1 (39,628) (717,849) (3,855) (64,830) Class R2 (15,425) (280,707) (1,935) (31,647) Class R3 (110,566) (2,111,539) (26,032) (463,349) Class R4 (564,466) (10,824,820) (311,276) (5,589,225) Class R5 -- -- (4) (76) - ----------------------------------------------------------------------------------------------------------- (11,147,632) $(215,659,256) (5,904,532) $(103,140,517) Net change Class A 30,578,688 $623,198,215 123,085 $2,273,400 Class B 14,713,520 280,293,356 (1,306,969) (22,083,302) Class C 4,882,110 92,371,349 (82,683) (1,316,748) Class I 1,086,224 23,029,018 81,500 1,505,611 Class R (50) 205,646 (29,208) (537,391) Class R1 112,040 2,118,458 22,549 385,011 Class R2 36,756 674,303 42,255 726,314 Class R3 419,536 8,267,579 12,963 225,345 Class R4 366,621 7,075,045 1,244,505 22,922,114 Class R5 228 4,256 133 2,363 - ---------------------------------------------------------------------------------------------------------- 52,195,673 $1,037,237,225 108,130 $4,102,717 (6) LINE OF CREDIT The fund and other funds managed by MFS participate in a $1 billion unsecured committed line of credit provided by a syndication of banks under a credit agreement. In addition, the fund and other funds managed by MFS have established uncommitted borrowing arrangements with certain banks. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its borrowings, generally at a rate equal to the Federal Reserve funds rate plus 0.30%. In addition, a commitment fee, based on the average daily, unused portion of the committed line of credit, is allocated among the participating funds at the end of each calendar quarter. For the year ended August 31, 2007, the fund's commitment fee and interest expense were $1,321 and $15,802, respectively, and are included in miscellaneous expense on the Statement of Operations. (7) ACQUISITIONS At close of business on June 22, 2007, the fund acquired all of the assets and liabilities of MFS Capital Opportunities Fund. The acquisition was accomplished by a tax-free exchange of 50,239,239 shares of the fund (valued at $991,982,157) for all of the assets and liabilities of MFS Capital Opportunities Fund. MFS Capital Opportunities Fund then converted all of its outstanding shares for the shares of the fund and distributed those shares to its shareholders. MFS Capital Opportunities Fund's net assets on that date were $991,982,157, including $104,456,476 of unrealized appreciation, $795,742 of accumulated net investment loss, and $2,292,322,787 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 $1,379,102,978. 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, 2007, 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, 2007, by correspondence with the Fund's 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 Equity Fund at August 31, 2007, 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 16, 2007 TRUSTEES AND OFFICERS -- IDENTIFICATION AND BACKGROUND The Trustees and officers of the Trust, as of October 1, 2007, 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(h) OTHER DIRECTORSHIPS(j) - ------------------- ---------------- ---------------- -------------------------------- INTERESTED TRUSTEES Robert J. Manning(k) Trustee February 2004 Massachusetts Financial Services (born 10/20/63) Company, Chief Executive Officer, President, Chief Investment Officer and Director Robert C. Pozen(k) Trustee February 2004 Massachusetts Financial Services (born 8/08/46) Company, Chairman (since February 2004); MIT Sloan School (education), Senior Lecturer (since 2006); 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 5/01/36) of Trustees Enterprises (diversified services company), Chairman, Trustee and Chief Executive Officer (until November 2000) Robert E. Butler(n) Trustee January 2006 Consultant - regulatory and (born 11/29/41) compliance matters (since July 2002); PricewaterhouseCoopers LLP (professional services firm), Partner (until 2002) Lawrence H. Cohn, M.D. Trustee August 1993 Brigham and Women's Hospital, (born 3/11/37) Chief of Cardiac Surgery (2005); Harvard Medical School, Professor of Cardiac Surgery; Physician Director of Medical Device Technology for Partners HealthCare David H. Gunning Trustee January 2004 Retired; Cleveland-Cliffs Inc. (born 5/30/42) (mining products and service provider), Vice Chairman/Director (until May 2007); Portman Limited (mining), Director (since 2005); 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 9/27/41) consultant; Capitol Entertainment Management Company (video franchise), Vice Chairman; Atlantic Coast Tan (tanning salons), Vice Chairman (since 2002) 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) Lawrence T. Perera Trustee July 1981 Hemenway & Barnes (attorneys), (born 6/23/35) Partner J. Dale Sherratt Trustee August 1993 Insight Resources, Inc. (born 9/23/38) (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 New Profit, Inc. (venture (born 8/05/57) philanthropy), Partner (since 2006); Private investor; Prism Venture Partners (venture capital), Co-founder and General Partner (until June 2004); The Travelers Companies (commercial property liability insurance), Director Robert W. Uek Trustee January 2006 Retired (since 1999); (born 5/18/41) PricewaterhouseCoopers LLP (professional services firm), Partner (until 1999); Consultant to investment company industry (since 2000); TT International Funds (mutual fund complex), Trustee (2000 until 2005); Hillview Investment Trust II Funds (mutual fund complex), Trustee (2000 until 2005) OFFICERS Maria F. Dwyer(k) President November 2005 Massachusetts Financial Services (born 12/01/58) Company, Executive Vice President and Chief Regulatory Officer (since March 2004) Chief Compliance Officer (since December 2006); Fidelity Management & Research Company, Vice President (prior to March 2004); Fidelity Group of Funds, President and Treasurer (prior to March 2004) Tracy Atkinson(k) 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(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 1/18/74) and Assistant Clerk Company, Vice President and Senior Counsel (since April 2003); Kirkpatrick & Lockhart LLP (law firm), Associate (prior to April 2003) Ethan D. Corey(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 11/21/63) and Assistant Clerk Company, Special Counsel (since December 2004); Dechert LLP (law firm), Counsel (prior to December 2004) David L. DiLorenzo(k) Assistant Treasurer July 2005 Massachusetts Financial Services (born 8/10/68) Company, Vice President (since June 2005); JP Morgan Investor Services, Vice President (prior to June 2005) Mark D. Fischer(k) Assistant Treasurer July 2005 Massachusetts Financial Services (born 10/27/70) Company, Vice President (since May 2005); JP Morgan Investment Management Company, Vice President (prior to May 2005) Brian E. Langenfeld(k) Assistant Secretary June 2006 Massachusetts Financial Services (born 3/07/73) and Assistant Clerk Company, Assistant Vice President and Counsel (since May 2006); John Hancock Advisers, LLC, Assistant Vice President and Counsel (May 2005 to April 2006); John Hancock Advisers, LLC, Attorney and Assistant Secretary (prior to May 2005) Ellen Moynihan(k) Assistant Treasurer April 1997 Massachusetts Financial Services (born 11/13/57) Company, Senior Vice President Susan S. Newton(k) Assistant Secretary May 2005 Massachusetts Financial Services (born 3/07/50) and Assistant Clerk Company, Senior Vice President and 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(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 11/05/70) and Assistant Clerk Company, Vice President and Senior Counsel (since June 2004); Bingham McCutchen LLP (law firm), Associate (prior to June 2004) Mark N. Polebaum(k) Secretary and Clerk January 2006 Massachusetts Financial Services (born 5/01/52) Company, Executive Vice President, General Counsel and Secretary (since January 2006); Wilmer Cutler Pickering Hale and Dorr LLP (law firm), Partner (prior to January 2006) Frank L. Tarantino Independent Chief June 2004 Tarantino LLC (provider of (born 3/07/44) Compliance Officer compliance services), Principal (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 (prior to March 2003) James O. Yost(k) Assistant Treasurer September 1990 Massachusetts Financial Services (born 6/12/60) Company, Senior Vice President - ------------ (h) Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served continuously since appointment unless indicated otherwise. (j) Directorships or trusteeships of companies required to report to the Securities and Exchange Commission (i.e., "public companies"). (k) "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. (n) In 2004 and 2005, Mr. Butler provided consulting services to the independent compliance consultant retained by MFS pursuant to its settlement with the SEC concerning market timing and related matters. The terms of that settlement required that compensation and expenses related to the independent compliance consultant be borne exclusively by MFS and, therefore, MFS paid Mr. Butler for the services he rendered to the independent compliance consultant. In 2004 and 2005, MFS paid Mr. Butler a total of $351,119.29. The Trust held a shareholders' meeting in 2005 to elect Trustees, and will hold a shareholders' meeting at least once every five years thereafter, to elect Trustees. Each Trustee (except Mr. Butler and Mr. Uek) has been elected by share- holders 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. Butler, Gutow, Sherratt and Uek and Ms. 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 January 1, 2007, the Trustees served as board members of 97 funds within the MFS Family of Funds. 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, 2007 ("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 that included, among other items: (i) information provided by Lipper Inc. on the investment performance of the Fund for various time periods ended December 31, 2006 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 ("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 MFS peer funds, (iii) information provided by MFS on the advisory fees of comparable portfolios of other clients of MFS, including institutional separate accounts 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 in 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, 2006, which the Trustees believed was a long enough period to reflect differing market conditions. The total return performance of the Fund's Class A shares was in the 3rd quintile relative to the other funds in the universe for this three-year period (the 1st quintile being the best performers and the 5th quintile being the worst performers). The total return performance of the Fund's Class A shares was in the 3rd quintile for each of the one and five-year periods ended December 31, 2006 relative to the Lipper performance universe. Because of the passage of time, these performance results may 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 daily 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 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 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 contractual breakpoint that reduces the Fund's advisory fee rate on average daily net assets over $500 million. 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 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 that 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, which may include 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, if applicable, to pay for investment research (excluding third-party research, for which MFS pays directly), 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, 2007. A discussion regarding the Board's most recent review and renewal of the Fund's investment advisory agreement will be available on or before November 1, 2007 by clicking on the fund's name under "Select a fund" on the MFS Web site (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 100 F Street, NE, Room 1580 Washington, D.C. 20549 Information on the operation of the Public Reference Room may be obtained by calling the Commission at 1-202-551-5850. The fund's Form N-Q is available on the EDGAR database on the Commission's Internet Web site 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) The fund will notify shareholders of amounts for use in preparing 2007 income tax forms in January 2008. The following information is provided pursuant to provisions of the Internal Revenue Code. The fund designates $12,832,439 as capital gain dividends paid during the fiscal year. MFS(R) PRIVACY NOTICE Privacy is a concern for every investor today. At MFS Investment Management(R) and the MFS funds, we take this concern very seriously. We want you to understand our policies about the investment products and services that we offer, and how we protect the nonpublic personal information of investors who have a direct relationship with us and our wholly owned subsidiaries. Throughout our business relationship, you provide us with personal information. We maintain information and records about you, your investments, and the services you use. Examples of the nonpublic personal information we maintain include o data from investment applications and other forms o share balances and transactional history with us, our affiliates, or others o facts from a consumer reporting agency We do not disclose any nonpublic personal information about our customers or former customers to anyone, except as permitted by law. We may share nonpublic personal information with third parties or certain of our affiliates in connection with servicing your account or processing your transactions. We may share information with companies or financial institutions that perform marketing services on our behalf or with other financial institutions with which we have joint marketing arrangements, subject to any legal requirements. Authorization to access your nonpublic personal information is limited to appropriate personnel who provide products, services, or information to you. We maintain physical, electronic, and procedural safeguards to help protect the personal information we collect about you. If you have any questions about the MFS privacy policy, please call 1-800-225-2606 any business day between 8 a.m. and 8 p.m. Eastern time. Note: If you own MFS products or receive MFS services in the name of a third party such as a bank or broker-dealer, their privacy policy may apply to you instead of ours. CONTACT US WEB SITE MAILING ADDRESS mfs.com MFS Service Center, Inc. P.O. Box 55824 MFS TALK Boston, MA 02205-5824 1-800-637-8255 24 hours a day OVERNIGHT MAIL MFS Service Center, Inc. ACCOUNT SERVICE AND 500 Boylston Street LITERATURE Boston, MA 02116-3741 SHAREHOLDERS 1-800-225-2606 8 a.m. to 8 p.m. ET INVESTMENT PROFESSIONALS 1-800-343-2829 8 a.m. to 8 p.m. ET RETIREMENT PLAN SERVICES 1-800-637-1255 8 a.m. to 8 p.m. ET - ------------------------------------------------------------------------------- Go paperless with eDELIVERY: Arrange to have MFS(R) send prospectuses, reports, and proxies directly to your e-mail inbox. You'll get timely information and less clutter in your mailbox (not to mention help your fund save printing and postage costs). SIGN UP: If your account is registered with us, simply go to mfs.com, log in to your account via MFS(R) Access, and select the eDelivery sign up options. If you own your MFS fund shares through a financial institution or a retirement plan, MFS(R) TALK, MFS Access, and eDelivery may not be available to you. - ------------------------------------------------------------------------------- M F S(R) INVESTMENT MANAGEMENT M F S(R) INVESTMENT MANAGEMENT [graphic omitted] ANNUAL REPORT MFS(R) CORE GROWTH FUND LETTER FROM THE CEO 1 - ------------------------------------------------------------------ PORTFOLIO COMPOSITION 2 - ------------------------------------------------------------------ MANAGEMENT REVIEW 3 - ------------------------------------------------------------------ PERFORMANCE SUMMARY 6 - ------------------------------------------------------------------ EXPENSE TABLE 9 - ------------------------------------------------------------------ PORTFOLIO OF INVESTMENTS 11 - ------------------------------------------------------------------ STATEMENT OF ASSETS AND LIABILITIES 17 - ------------------------------------------------------------------ STATEMENT OF OPERATIONS 20 - ------------------------------------------------------------------ STATEMENTS OF CHANGES IN NET ASSETS 22 - ------------------------------------------------------------------ FINANCIAL HIGHLIGHTS 23 - ------------------------------------------------------------------ NOTES TO FINANCIAL STATEMENTS 32 - ------------------------------------------------------------------ REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 44 - ------------------------------------------------------------------ TRUSTEES AND OFFICERS 45 - ------------------------------------------------------------------ BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT 51 - ------------------------------------------------------------------ PROXY VOTING POLICIES AND INFORMATION 55 - ------------------------------------------------------------------ QUARTERLY PORTFOLIO DISCLOSURE 55 - ------------------------------------------------------------------ FEDERAL TAX INFORMATION 55 - ------------------------------------------------------------------ MFS(R) PRIVACY NOTICE 56 - ------------------------------------------------------------------ CONTACT INFORMATION BACK COVER - ------------------------------------------------------------------ THE 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. - ------------------------------------------------------------------------------ NOT FDIC INSURED o MAY LOSE VALUE o NO BANK OR CREDIT UNION GUARANTEE o NOT A DEPOSIT o NOT INSURED BY ANY FEDERAL GOVERNMENT AGENCY OR NCUA/NCUSIF - ------------------------------------------------------------------------------ 8/31/07 GCF-ANN LETTER FROM THE CEO [Photo of Robert J. Manning] Dear Shareholders: The past year has been a great example of why investors should keep their eyes on the long term. In 2006 the Dow Jones Industrial Average returned 19%. But the Dow's upward rise has not been without hiccups. After hitting new records in July 2007, the Dow lost 8% in the following weeks as a crisis swept global credit markets. As we have said before, markets can be volatile, and investors should make sure they have an investment plan that can carry them through the peaks and troughs. If you are focused on a long-term investment strategy, the short-term ups and downs of the markets should not necessarily dictate portfolio action on your part. Both the bond and stock markets are cyclical. In our view, investors who remain committed to a long-term plan are more likely to achieve their financial goals. We believe you should not let the headlines guide you in your investment decisions and should be cautious about overreacting to short-term volatility. In any market environment, we believe individual investors are best served by following a three-pronged investment strategy of allocating their holdings across the major asset classes, diversifying within each class, and regularly rebalancing their portfolios to maintain their desired allocations. Of course, these strategies cannot guarantee a profit or protect against a loss. Investing and planning for the long term require diligence and patience, two traits that in our experience are essential to capitalizing on the many opportunities the financial markets can offer -- through both up and down economic cycles. Respectfully, /s/ Robert J. Manning Robert J. Manning Chief Executive Officer and Chief Investment Officer MFS Investment Management(R) October 15, 2007 The opinions expressed in this letter are subject to change, may not be relied upon for investment advice, and no forecasts can be guaranteed. PORTFOLIO COMPOSITION PORTFOLIO STRUCTURE Common Stocks 97.2% Cash & Other Net Assets 2.8% TOP TEN HOLDINGS Google, Inc., "A" 2.8% ------------------------------------------------ Intel Corp. 2.7% ------------------------------------------------ Cisco Systems, Inc. 2.7% ------------------------------------------------ Oracle Corp. 2.6% ------------------------------------------------ Medtronic, Inc. 2.3% ------------------------------------------------ CVS Caremark Corp. 2.1% ------------------------------------------------ EMC Corp. 2.0% ------------------------------------------------ Genzyme Corp. 1.8% ------------------------------------------------ Procter & Gamble Co. 1.8% ------------------------------------------------ Nestle S.A. 1.8% ------------------------------------------------ EQUITY SECTORS Technology 25.4% ------------------------------------------------ Health Care 18.7% ------------------------------------------------ Consumer Staples 8.2% ------------------------------------------------ Retailing 8.0% ------------------------------------------------ Financial Services 7.6% ------------------------------------------------ Industrial Goods & Services 7.0% ------------------------------------------------ Energy 5.0% ------------------------------------------------ Special Products & Services 4.8% ------------------------------------------------ Leisure 4.6% ------------------------------------------------ Utilities & Communications 3.2% ------------------------------------------------ Basic Materials 3.1% ------------------------------------------------ Transportation 1.6% ------------------------------------------------ Percentages are based on net assets as of 08/31/07. The portfolio is actively managed and current holdings may be different. MANAGEMENT REVIEW SUMMARY OF RESULTS For the twelve months ended August 31, 2007, Class A shares of the MFS Core Growth Fund provided a total return of 17.07%, at net asset value. This compares with a return of 17.70% for the fund's benchmark, the Russell 1000 Growth Index. MARKET ENVIRONMENT The U.S. economy continues to decouple from the rest of the world, growing at a slower pace than other major economies. Overall, global economies have seen moderate to strong growth over the last twelve months as domestic demand improves and world trade accelerates. With the stronger growth, however, has come increased concern about rising global inflation, especially as capacity becomes more constrained, wages rise, and energy and food prices advance. Late in the reporting period, continued robust global growth and fears of rising inflationary pressures led global central banks to tighten monetary conditions beyond market expectations, which in turn pushed global bond yields to their highest levels during this economic expansion. However, beginning in late July and August, heightened uncertainty and distress concerning the subprime mortgage market caused several global credit markets to seize up, forcing central banks to inject liquidity and to reassess their tightening biases as sovereign bond yields plummeted and credit spreads widened considerably. Increased market volatility has been exacerbated by U.S. home foreclosures, falling housing prices, and weaker-than-expected jobs growth reported by the U.S. Department of Labor. Despite increased volatility across all asset classes, and the widening in credit spreads, global equity markets have experienced only a mild correction to date. DETRACTORS FROM PERFORMANCE For the MFS Core Growth Fund, a combination of security selection and overweighting in the financial services sector was the primary detractor to performance relative to its benchmark. Holdings in investment management and banking firm UBS (Switzerland)(aa) hindered performance as problems relating to mortgage-backed securities hurt the stock price. Investment servicing firm State Street Corp. also held back results. Concerns about off-balance sheet commitments to asset-backed commercial paper conduits and the bank's on- balance sheet portfolio, which holds significant positions in asset-backed and mortgage-related securities, weighed on the stock's share price. In the leisure sector, the fund's positioning in cable services provider Comcast hurt relative performance. Overweighting poor-performing billing software company Amdocs Ltd. dampened results in the special products and services sector. Other individual positions that hurt results included medical devices maker Advanced Medical Optics, Swiss pharmaceutical and diagnostic company Roche Holding(aa), and global biotech company Genzyme. Underweighting computer company IBM adversely impacted relative performance as shares outperformed the benchmark over the reporting period. The fund's holdings in flash memory storage products maker SanDisk also hurt. The fund's cash position was a detractor from relative performance. The fund 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 benchmark, which has no cash position. CONTRIBUTORS TO PERFORMANCE Stock selection in the technology, utilities and communications, industrial goods and services, and retailing sectors were the top contributors to relative performance over the reporting period. In the technology sector, our position in Canadian wireless solutions provider Research In Motion(aa) led the way. With mobile broadband prices coming down, Research In Motion benefited from increased demand for smartphones within this fast growing consumer market. Our avoidance of wireless and broadband communications firm Motorola also benefited results as this benchmark constituent underperformed the index over the period on lower-than-expected handset sales. Mexican wireless communications company America Movil(aa) has continued to be a strong performer in the utilities and communications sector. Led by strong customer growth, American Movil has increased revenue through local market cellular penetration in several Latin American countries. In the industrial goods and services sector, the fund derived solid gains from overweighted positions in metal component manufacturer Precision Castparts and agricultural equipment manufacturer Deere & Company(g). Deere turned in good quarterly results and raised guidance for the fiscal year 2007. Although strong stock selection in the retailing sector also bolstered the fund's return, no holdings within this sector were among the top contributors. Elsewhere in the fund, overweighting biopharmaceutical company Celgene, diagnostic and medical device company Cytyc(g), and pharmaceutical services company Caremark RX(g) aided relative results. The fund also benefited from investments in agriculture and food business Bunge Limited(aa)(g) and oil field services company Schlumberger. During the reporting period, our currency exposure was a contributor to the fund's relative performance. All of MFS' investment decisions are driven by the fundamentals of each individual opportunity and, as such, it is common for our funds to have different currency exposure than the benchmark. Respectfully, Stephen Pesek Portfolio Manager (aa) Security is not a benchmark constituent. (g) 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 or 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 portfolio. References to specific securities are not recommendations of such securities, and may not be representative of any MFS portfolio's current or future investments. PERFORMANCE SUMMARY THROUGH 8/31/07 The following chart illustrates a representative class of the fund's historical performance 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. The performance of other share classes will be greater than or less than that of the class depicted below. Benchmark comparisons are unmanaged; do not reflect sales charges, commissions or expenses; and cannot be invested in directly. (See Notes to Performance Summary.) PERFORMANCE DATA SHOWN REPRESENTS PAST PERFORMANCE AND IS NO GUARANTEE OF FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE FLUCTUATE SO YOUR SHARES, WHEN SOLD, MAY BE WORTH MORE OR LESS THAN THE ORIGINAL COST; CURRENT PERFORMANCE MAY BE LOWER OR HIGHER THAN QUOTED. 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 MFS Core Growth Fund -- Russell 1000 Class A Growth Index 8/97 $ 9,425 $10,000 8/98 10,250 10,826 8/99 15,819 16,058 8/00 23,946 21,431 8/01 15,190 11,718 8/02 11,889 9,120 8/03 12,960 10,403 8/04 13,229 10,961 8/05 15,127 12,291 8/06 15,919 12,743 8/07 18,636 14,999 TOTAL RETURNS THROUGH 8/31/07 AVERAGE ANNUAL WITHOUT SALES CHARGE Share class Class inception date 1-yr 5-yr 10-yr - ------------------------------------------------------------------------------- A 1/02/96 17.07% 9.40% 7.05% ------------------------------------------------------------------------- B 12/31/99 16.31% 8.69% 6.54% ------------------------------------------------------------------------- C 12/31/99 16.31% 8.69% 6.54% ------------------------------------------------------------------------- I 1/02/97 17.53% 9.79% 7.36% ------------------------------------------------------------------------- W 5/01/06 17.39% 9.49% 7.10% ------------------------------------------------------------------------- R 12/31/02 16.92% 9.28% 6.99% ------------------------------------------------------------------------- R1 4/01/05 16.22% 9.00% 6.86% ------------------------------------------------------------------------- R2 4/01/05 16.56% 9.17% 6.94% ------------------------------------------------------------------------- R3 10/31/03 16.73% 9.12% 6.91% ------------------------------------------------------------------------- R4 4/01/05 17.02% 9.38% 7.04% ------------------------------------------------------------------------- R5 4/01/05 17.35% 9.53% 7.12% - ------------------------------------------------------------------------------- AVERAGE ANNUAL Comparative benchmark - ------------------------------------------------------------------------------- Russell 1000 Growth Index (f) 17.70% 10.46% 4.14% - ------------------------------------------------------------------------------- AVERAGE ANNUAL WITH SALES CHARGE Share class - ------------------------------------------------------------------------------- A 10.34% 8.12% 6.42% With Initial Sales Charge (5.75%) ------------------------------------------------------------------------- B 12.31% 8.40% 6.54% With CDSC (Declining over six years from 4% to 0%) (x) ------------------------------------------------------------------------- C 15.31% 8.69% 6.54% With CDSC (1% for 12 months) (x) - ------------------------------------------------------------------------------- Class I, W, R, R1, R2, R3, R4, and R5 shares do not have a sales charge. Please see Notes to Performance Summary for more details. CDSC - Contingent Deferred Sales Charge. (f) Source: FactSet Research Systems Inc. (x) Assuming redemption at the end of the applicable period. INDEX DEFINITION Russell 1000 Growth Index - 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 value. It is not possible to invest directly in an index. NOTES TO PERFORMANCE SUMMARY Performance for Classes B, C, W, R, R1, R2, R3, R4 and R5 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, 2007 through August 31, 2007 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 (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, 2007 through August 31, 2007. ACTUAL EXPENSES The first line for each share class in the following table 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 following table 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). 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 Beginning Ending Paid During Annualized Account Account Period (p) Share Expense Value Value 3/01/07- Class Ratio 3/01/07 8/31/07 8/31/07 - -------------------------------------------------------------------------------- Actual 1.22% $1,000.00 $1,081.90 $6.40 A ----------------------------------------------------------------------- Hypothetical(h) 1.22% $1,000.00 $1,019.06 $6.21 - -------------------------------------------------------------------------------- Actual 1.87% $1,000.00 $1,078.50 $9.80 B ----------------------------------------------------------------------- Hypothetical(h) 1.87% $1,000.00 $1,015.78 $9.50 - -------------------------------------------------------------------------------- Actual 1.87% $1,000.00 $1,078.50 $9.80 C ----------------------------------------------------------------------- Hypothetical(h) 1.87% $1,000.00 $1,015.78 $9.50 - -------------------------------------------------------------------------------- Actual 0.88% $1,000.00 $1,084.30 $4.62 I ----------------------------------------------------------------------- Hypothetical(h) 0.88% $1,000.00 $1,020.77 $4.48 - -------------------------------------------------------------------------------- Actual 0.97% $1,000.00 $1,083.80 $5.09 W ----------------------------------------------------------------------- Hypothetical(h) 0.97% $1,000.00 $1,020.32 $4.94 - -------------------------------------------------------------------------------- Actual 1.37% $1,000.00 $1,081.20 $7.19 R ----------------------------------------------------------------------- Hypothetical(h) 1.37% $1,000.00 $1,018.30 $6.97 - -------------------------------------------------------------------------------- Actual 1.98% $1,000.00 $1,078.10 $10.37 R1 ----------------------------------------------------------------------- Hypothetical(h) 1.98% $1,000.00 $1,015.22 $10.06 - -------------------------------------------------------------------------------- Actual 1.62% $1,000.00 $1,079.80 $8.49 R2 ----------------------------------------------------------------------- Hypothetical(h) 1.62% $1,000.00 $1,017.04 $8.24 - -------------------------------------------------------------------------------- Actual 1.52% $1,000.00 $1,080.70 $7.97 R3 ----------------------------------------------------------------------- Hypothetical(h) 1.52% $1,000.00 $1,017.54 $7.73 - -------------------------------------------------------------------------------- Actual 1.28% $1,000.00 $1,082.00 $6.72 R4 ----------------------------------------------------------------------- Hypothetical(h) 1.28% $1,000.00 $1,018.75 $6.51 - -------------------------------------------------------------------------------- Actual 0.97% $1,000.00 $1,083.60 $5.09 R5 ----------------------------------------------------------------------- Hypothetical(h) 0.97% $1,000.00 $1,020.32 $4.94 - -------------------------------------------------------------------------------- (h) 5% class return per year before expenses. (p) Expenses paid is equal to each class' annualized expense ratio, as shown above, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year. Expenses paid do not include any applicable sales charges (loads). If these transaction costs had been included, your costs would have been higher. PORTFOLIO OF INVESTMENTS 8/31/07 The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Common Stocks - 97.2% - ---------------------------------------------------------------------------------------------------------------------------------- ISSUER SHARES/PAR VALUE ($) - ---------------------------------------------------------------------------------------------------------------------------------- Aerospace - 2.4% - ---------------------------------------------------------------------------------------------------------------------------------- Boeing Co. 166,020 $ 16,054,134 Precision Castparts Corp. 100,730 13,126,126 United Technologies Corp. 393,130 29,339,292 -------------- $ 58,519,552 - ---------------------------------------------------------------------------------------------------------------------------------- Alcoholic Beverages - 1.1% - ---------------------------------------------------------------------------------------------------------------------------------- Diageo PLC 1,233,900 $ 26,349,594 - ---------------------------------------------------------------------------------------------------------------------------------- Apparel Manufacturers - 0.5% - ---------------------------------------------------------------------------------------------------------------------------------- NIKE, Inc., "B" 215,820 $ 12,159,299 - ---------------------------------------------------------------------------------------------------------------------------------- Biotechnology - 4.3% - ---------------------------------------------------------------------------------------------------------------------------------- Amgen, Inc. (a) 223,460 $ 11,197,581 Amylin Pharmaceuticals, Inc. (a)(l) 138,400 6,785,752 Celgene Corp. (a)(l) 215,140 13,814,139 Genzyme Corp. (a)(l) 715,410 44,648,738 Gilead Sciences, Inc. (a) 480,820 17,487,423 Millipore Corp. (a)(l) 133,890 9,329,455 -------------- $ 103,263,088 - ---------------------------------------------------------------------------------------------------------------------------------- Brokerage & Asset Managers - 2.2% - ---------------------------------------------------------------------------------------------------------------------------------- CME Group, Inc. 32,420 $ 17,986,616 Franklin Resources, Inc. (l) 91,700 12,083,309 Merrill Lynch & Co., Inc. (l) 237,700 17,518,490 T. Rowe Price Group, Inc. (l) 116,000 5,953,120 -------------- $ 53,541,535 - ---------------------------------------------------------------------------------------------------------------------------------- Business Services - 3.2% - ---------------------------------------------------------------------------------------------------------------------------------- Accenture Ltd., "A" (l) 399,100 $ 16,446,911 Amdocs Ltd. (a)(l) 1,172,140 41,376,542 Fidelity National Information Services, Inc. 339,100 16,073,340 Western Union Co. 241,590 4,549,140 -------------- $ 78,445,933 - ---------------------------------------------------------------------------------------------------------------------------------- Cable TV - 1.1% - ---------------------------------------------------------------------------------------------------------------------------------- Comcast Corp., "A" (a) 1,005,740 $ 26,239,757 - ---------------------------------------------------------------------------------------------------------------------------------- Chemicals - 1.6% - ---------------------------------------------------------------------------------------------------------------------------------- 3M Co. (l) 221,940 $ 20,194,321 Monsanto Co. 268,540 18,727,980 -------------- $ 38,922,301 - ---------------------------------------------------------------------------------------------------------------------------------- Computer Software - 6.9% - ---------------------------------------------------------------------------------------------------------------------------------- Adobe Systems, Inc. (a)(l) 831,546 $ 35,548,591 Microsoft Corp. 1,310,820 37,659,859 NAVTEQ Corp. (a)(l) 78,100 4,920,300 Oracle Corp. (a) 3,055,990 61,975,477 VeriSign, Inc. (a) 788,400 25,386,480 -------------- $ 165,490,707 - ---------------------------------------------------------------------------------------------------------------------------------- Computer Software - Systems - 6.4% - ---------------------------------------------------------------------------------------------------------------------------------- Apple Computer, Inc. (a)(l) 222,990 $ 30,879,655 EMC Corp. (a)(l) 2,442,270 48,015,028 Hewlett-Packard Co. 499,200 24,635,520 International Business Machines Corp. 319,180 37,245,114 Network Appliance, Inc. (a)(l) 453,170 12,625,316 -------------- $ 153,400,633 - ---------------------------------------------------------------------------------------------------------------------------------- Conglomerates - 0.4% - ---------------------------------------------------------------------------------------------------------------------------------- Textron, Inc. (l) 146,400 $ 8,540,976 - ---------------------------------------------------------------------------------------------------------------------------------- Consumer Goods & Services - 4.2% - ---------------------------------------------------------------------------------------------------------------------------------- Apollo Group, Inc., "A" (a)(l) 471,100 $ 27,639,437 Avon Products, Inc. (l) 358,030 12,298,330 Colgate-Palmolive Co. 264,600 17,548,272 Procter & Gamble Co. 681,790 44,527,705 -------------- $ 102,013,744 - ---------------------------------------------------------------------------------------------------------------------------------- Electrical Equipment - 4.0% - ---------------------------------------------------------------------------------------------------------------------------------- Danaher Corp. (l) 539,580 $ 41,903,783 General Electric Co. 1,067,930 41,510,439 Rockwell Automation, Inc. 174,170 12,272,018 -------------- $ 95,686,240 - ---------------------------------------------------------------------------------------------------------------------------------- Electronics - 4.2% - ---------------------------------------------------------------------------------------------------------------------------------- ASML Holding N.V. (a)(l) 411,900 $ 12,221,073 Intel Corp. (l) 2,553,190 65,744,643 National Semiconductor Corp. (l) 465,620 12,255,118 Samsung Electronics Co. Ltd., GDR 18,184 5,773,420 SanDisk Corp. (a)(l) 109,600 6,144,176 -------------- $ 102,138,430 - ---------------------------------------------------------------------------------------------------------------------------------- Energy - Independent - 0.9% - ---------------------------------------------------------------------------------------------------------------------------------- Ultra Petroleum Corp. (a)(l) 213,290 $ 11,389,686 XTO Energy, Inc. 208,650 11,342,214 -------------- $ 22,731,900 - ---------------------------------------------------------------------------------------------------------------------------------- Energy - Integrated - 1.2% - ---------------------------------------------------------------------------------------------------------------------------------- Hess Corp. (l) 379,360 $ 23,281,323 Marathon Oil Corp. 111,000 5,981,790 -------------- $ 29,263,113 - ---------------------------------------------------------------------------------------------------------------------------------- Engineering - Construction - 0.3% - ---------------------------------------------------------------------------------------------------------------------------------- Fluor Corp. (l) 50,100 $ 6,370,215 - ---------------------------------------------------------------------------------------------------------------------------------- Food & Beverages - 4.1% - ---------------------------------------------------------------------------------------------------------------------------------- General Mills, Inc. 315,900 $ 17,652,492 Nestle S.A. 101,110 43,980,883 PepsiCo, Inc. 550,620 37,458,679 -------------- $ 99,092,054 - ---------------------------------------------------------------------------------------------------------------------------------- Food & Drug Stores - 2.1% - ---------------------------------------------------------------------------------------------------------------------------------- CVS Caremark Corp. 1,358,936 $ 51,394,960 - ---------------------------------------------------------------------------------------------------------------------------------- Gaming & Lodging - 1.9% - ---------------------------------------------------------------------------------------------------------------------------------- International Game Technology (l) 360,380 $ 13,755,705 Royal Caribbean Cruises Ltd. (l) 830,850 31,597,226 -------------- $ 45,352,931 - ---------------------------------------------------------------------------------------------------------------------------------- General Merchandise - 1.8% - ---------------------------------------------------------------------------------------------------------------------------------- Costco Wholesale Corp. (l) 266,740 $ 16,471,195 Target Corp. (l) 426,280 28,104,640 -------------- $ 44,575,835 - ---------------------------------------------------------------------------------------------------------------------------------- Health Maintenance Organizations - 0.7% - ---------------------------------------------------------------------------------------------------------------------------------- WellPoint, Inc. (a) 221,880 $ 17,881,309 - ---------------------------------------------------------------------------------------------------------------------------------- Insurance - 1.3% - ---------------------------------------------------------------------------------------------------------------------------------- Aflac, Inc. (l) 393,140 $ 20,958,293 Prudential Financial, Inc. (l) 129,500 11,626,510 -------------- $ 32,584,803 - ---------------------------------------------------------------------------------------------------------------------------------- Internet - 2.8% - ---------------------------------------------------------------------------------------------------------------------------------- Google, Inc., "A" (a) 130,985 $ 67,490,021 - ---------------------------------------------------------------------------------------------------------------------------------- Leisure & Toys - 1.3% - ---------------------------------------------------------------------------------------------------------------------------------- Electronic Arts, Inc. (a) 448,600 $ 23,748,884 Ubisoft Entertainment S.A. (a) 112,052 6,957,210 -------------- $ 30,706,094 - ---------------------------------------------------------------------------------------------------------------------------------- Machinery & Tools - 0.3% - ---------------------------------------------------------------------------------------------------------------------------------- AGCO Corp. (a) 142,600 $ 6,160,320 - ---------------------------------------------------------------------------------------------------------------------------------- Major Banks - 2.1% - ---------------------------------------------------------------------------------------------------------------------------------- Bank of New York Mellon Corp. (l) 400,315 $ 16,184,735 State Street Corp. (l) 563,150 34,554,884 -------------- $ 50,739,619 - ---------------------------------------------------------------------------------------------------------------------------------- Medical & Health Technology & Services - 0.4% - ---------------------------------------------------------------------------------------------------------------------------------- Allscripts Healthcare Solutions, Inc. (a)(l) 158,000 $ 3,572,380 Henry Schein, Inc. (a) 92,000 5,353,480 -------------- $ 8,925,860 - ---------------------------------------------------------------------------------------------------------------------------------- Medical Equipment - 5.9% - ---------------------------------------------------------------------------------------------------------------------------------- Advanced Medical Optics, Inc. (a)(l) 300,000 $ 8,622,000 Becton, Dickinson & Co. 152,800 11,756,432 DENTSPLY International, Inc. 382,320 15,055,762 Medtronic, Inc. (l) 1,066,640 56,361,258 St. Jude Medical, Inc. (a)(l) 301,790 13,148,990 Thermo Fisher Scientific, Inc. (a)(l) 705,350 38,251,131 -------------- $ 143,195,573 - ---------------------------------------------------------------------------------------------------------------------------------- Metals & Mining - 0.4% - ---------------------------------------------------------------------------------------------------------------------------------- Cameco Corp. 250,500 $ 10,115,190 - ---------------------------------------------------------------------------------------------------------------------------------- Network & Telecom - 5.1% - ---------------------------------------------------------------------------------------------------------------------------------- Cisco Systems, Inc. (a) 2,054,780 $ 65,588,578 Juniper Networks, Inc. (a)(l) 366,180 12,054,646 Nokia Corp., ADR (l) 328,410 10,798,121 Nokia Oyj 154,070 5,073,775 QUALCOMM, Inc. (l) 210,820 8,409,610 Research In Motion Ltd. (a) 236,460 20,196,049 -------------- $ 122,120,779 - ---------------------------------------------------------------------------------------------------------------------------------- Oil Services - 2.9% - ---------------------------------------------------------------------------------------------------------------------------------- Halliburton Co. 521,070 $ 18,023,811 Noble Corp. 201,800 9,900,308 Schlumberger Ltd. (l) 316,930 30,583,745 Weatherford International Ltd. (a)(l) 209,500 12,230,610 -------------- $ 70,738,474 - ---------------------------------------------------------------------------------------------------------------------------------- Other Banks & Diversified Financials - 2.0% - ---------------------------------------------------------------------------------------------------------------------------------- American Express Co. 499,810 $ 29,298,862 Commerce Bancorp, Inc. (l) 222,600 8,176,098 UBS AG 216,150 11,291,676 -------------- $ 48,766,636 - ---------------------------------------------------------------------------------------------------------------------------------- Pharmaceuticals - 7.4% - ---------------------------------------------------------------------------------------------------------------------------------- Abbott Laboratories 595,740 $ 30,924,863 Allergan, Inc. 441,540 26,496,815 Bayer AG 172,200 13,589,334 Elan Corp. PLC, ADR (a) 648,120 12,560,566 Merck & Co., Inc. (l) 649,360 32,578,391 Roche Holding AG 236,760 41,155,202 Teva Pharmaceutical Industries Ltd., ADR 301,530 12,965,790 Wyeth (l) 168,960 7,822,848 -------------- $ 178,093,809 - ---------------------------------------------------------------------------------------------------------------------------------- Printing & Publishing - 0.3% - ---------------------------------------------------------------------------------------------------------------------------------- McGraw-Hill Cos., Inc. (l) 159,750 $ 8,060,985 - ---------------------------------------------------------------------------------------------------------------------------------- Railroad & Shipping - 0.6% - ---------------------------------------------------------------------------------------------------------------------------------- Burlington Northern Santa Fe Corp. (l) 187,200 $ 15,191,280 - ---------------------------------------------------------------------------------------------------------------------------------- Specialty Chemicals - 1.1% - ---------------------------------------------------------------------------------------------------------------------------------- Praxair, Inc. (l) 352,530 $ 26,672,420 - ---------------------------------------------------------------------------------------------------------------------------------- Specialty Stores - 3.6% - ---------------------------------------------------------------------------------------------------------------------------------- GameStop Corp., "A" (a) 250,450 $ 12,557,563 Lowe's Cos., Inc. (l) 1,018,530 31,635,542 Nordstrom, Inc. (l) 625,780 30,100,018 Staples, Inc. (l) 505,460 12,004,675 -------------- $ 86,297,798 - ---------------------------------------------------------------------------------------------------------------------------------- Telecommunications - Wireless - 1.6% - ---------------------------------------------------------------------------------------------------------------------------------- America Movil S.A.B. de C.V., "L", ADR 632,260 $ 38,226,440 - ---------------------------------------------------------------------------------------------------------------------------------- Telephone Services - 0.5% - ---------------------------------------------------------------------------------------------------------------------------------- American Tower Corp., "A" (a)(l) 297,970 $ 11,805,571 - ---------------------------------------------------------------------------------------------------------------------------------- Trucking - 1.0% - ---------------------------------------------------------------------------------------------------------------------------------- FedEx Corp. (l) 219,660 $ 24,092,309 - ---------------------------------------------------------------------------------------------------------------------------------- Utilities - Electric Power - 1.1% - ---------------------------------------------------------------------------------------------------------------------------------- AES Corp. (a) 855,690 $ 15,496,546 NRG Energy, Inc. (a) 308,800 11,762,192 -------------- $ 27,258,738 - ---------------------------------------------------------------------------------------------------------------------------------- TOTAL COMMON STOCKS (IDENTIFIED COST, $2,310,632,435) $2,348,616,825 - ---------------------------------------------------------------------------------------------------------------------------------- Short-Term Obligations - 3.3% - ---------------------------------------------------------------------------------------------------------------------------------- Citigroup Funding, Inc., 5.25%, due 9/04/07, at Amortized Cost and Value (y) $ 79,425,000 $ 79,390,252 - ---------------------------------------------------------------------------------------------------------------------------------- Collateral for Securities Loaned - 14.0% - ---------------------------------------------------------------------------------------------------------------------------------- Navigator Securities Lending Prime Portfolio, at Cost and Net Asset Value 338,007,461 $ 338,007,461 - ---------------------------------------------------------------------------------------------------------------------------------- TOTAL INVESTMENTS (IDENTIFIED COST, $2,728,030,148) $2,766,014,538 - ---------------------------------------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - (14.5)% (350,745,206) - ---------------------------------------------------------------------------------------------------------------------------------- NET ASSETS - 100.0% $2,415,269,332 - ---------------------------------------------------------------------------------------------------------------------------------- (a) Non-income producing security. (l) All or a portion of this security is on loan. (y) The rate shown represents an annualized yield at time of purchase. The following abbreviations are used in this report and are defined: ADR American Depository Receipt GDR Global Depository Receipt SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENT OF ASSETS AND LIABILITIES At 8/31/07 This statement represents your fund's balance sheet, which details the assets and liabilities comprising the total value of the fund. ASSETS - ----------------------------------------------------------------------------------------------------- Investments, at value, including $331,359,193 of securities on loan (identified cost, $2,728,030,148) $2,766,014,538 Cash 5,572 Receivable for investments sold 4,916,461 Receivable for fund shares sold 514,809 Interest and dividends receivable 1,521,029 Other assets 9,825 - ----------------------------------------------------------------------------------------------------- Total assets $2,772,982,234 - ----------------------------------------------------------------------------------------------------- LIABILITIES - ----------------------------------------------------------------------------------------------------- Payable for investments purchased $12,716,881 Payable for fund shares reacquired 5,077,063 Collateral for securities loaned, at value (c) 338,007,461 Payable to affiliates Management fee 85,204 Shareholder servicing costs 826,669 Distribution and service fees 40,585 Administrative services fee 2,006 Retirement plan administration and services fees 337 Payable for independent trustees' compensation 101,583 Accrued expenses and other liabilities 855,113 - ----------------------------------------------------------------------------------------------------- Total liabilities $357,712,902 - ----------------------------------------------------------------------------------------------------- Net assets $2,415,269,332 - ----------------------------------------------------------------------------------------------------- NET ASSETS CONSIST OF - ----------------------------------------------------------------------------------------------------- Paid-in capital $3,458,732,158 Unrealized appreciation (depreciation) on investments and translation of assets and liabilities in foreign currencies 37,984,497 Accumulated net realized gain (loss) on investments (1,081,343,940) Accumulated net investment loss (103,383) - ----------------------------------------------------------------------------------------------------- Net assets $2,415,269,332 - ----------------------------------------------------------------------------------------------------- Shares of beneficial interest outstanding 118,260,318 - ----------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class A shares - ----------------------------------------------------------------------------------------------------- Net assets $935,864,984 Shares outstanding 45,980,264 - ----------------------------------------------------------------------------------------------------- Net asset value per share $20.35 - ----------------------------------------------------------------------------------------------------- Offering price per share (100/94.25Xnet asset value per share) $21.59 - ----------------------------------------------------------------------------------------------------- Class B shares - ----------------------------------------------------------------------------------------------------- Net assets $303,614,185 Shares outstanding 15,667,095 - ----------------------------------------------------------------------------------------------------- Net asset value and offering price per share $19.38 - ----------------------------------------------------------------------------------------------------- Class C shares - ----------------------------------------------------------------------------------------------------- Net assets $108,949,978 Shares outstanding 5,622,088 - ----------------------------------------------------------------------------------------------------- Net asset value and offering price per share $19.38 - ----------------------------------------------------------------------------------------------------- Class I shares - ----------------------------------------------------------------------------------------------------- Net assets $1,010,074,592 Shares outstanding 48,199,905 - ----------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $20.96 - ----------------------------------------------------------------------------------------------------- Class W shares - ----------------------------------------------------------------------------------------------------- Net assets $373,110 Shares outstanding 18,266 - ----------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $20.43 - ----------------------------------------------------------------------------------------------------- Class R shares - ----------------------------------------------------------------------------------------------------- Net assets $4,357,630 Shares outstanding 215,420 - ----------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $20.23 - ----------------------------------------------------------------------------------------------------- Class R1 shares - ----------------------------------------------------------------------------------------------------- Net assets $1,517,254 Shares outstanding 78,482 - ----------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $19.33 - ----------------------------------------------------------------------------------------------------- Class R2 shares - ----------------------------------------------------------------------------------------------------- Net assets $2,046,584 Shares outstanding 105,061 - ----------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $19.48 - ----------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class R3 shares - ----------------------------------------------------------------------------------------------------- Net assets $5,727,848 Shares outstanding 285,212 - ----------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $20.08 - ----------------------------------------------------------------------------------------------------- Class R4 shares - ----------------------------------------------------------------------------------------------------- Net assets $1,640,857 Shares outstanding 80,715 - ----------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $20.33 - ----------------------------------------------------------------------------------------------------- Class R5 shares - ----------------------------------------------------------------------------------------------------- Net assets $41,102,310 Shares outstanding 2,007,810 - ----------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $20.47 - ----------------------------------------------------------------------------------------------------- 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. (c) Non-cash collateral not included. SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENT OF OPERATIONS Year ended 8/31/07 This statement describes how much your fund earned in investment income and accrued in expenses. It also describes any gains and/or losses generated by fund operations. NET INVESTMENT LOSS - ---------------------------------------------------------------------------------------------------- Income Dividends $10,307,416 Interest 2,160,538 Other 16,241 Foreign taxes withheld (228,510) - ---------------------------------------------------------------------------------------------------- Total investment income $12,255,685 - ---------------------------------------------------------------------------------------------------- Expenses Management fee $8,099,227 Distribution and service fees 4,693,691 Shareholder servicing costs 1,819,159 Administrative services fee 197,266 Retirement plan administration and services fees 49,012 Independent trustees' compensation 30,610 Custodian fee 301,017 Shareholder communications 62,897 Auditing fees 48,612 Legal fees 47,337 Miscellaneous 226,526 - ---------------------------------------------------------------------------------------------------- Total expenses $15,575,354 - ---------------------------------------------------------------------------------------------------- Fees paid indirectly (13,204) Reduction of expenses by investment adviser (848,724) - ---------------------------------------------------------------------------------------------------- Net expenses $14,713,426 - ---------------------------------------------------------------------------------------------------- Net investment loss $(2,457,741) - ---------------------------------------------------------------------------------------------------- Statement of Operations - continued REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS - ---------------------------------------------------------------------------------------------------- Realized gain (loss) (identified cost basis) Investment transactions $264,334,027 Foreign currency transactions 21,389 - ---------------------------------------------------------------------------------------------------- Net realized gain (loss) on investments and foreign currency transactions $264,355,416 - ---------------------------------------------------------------------------------------------------- Change in unrealized appreciation (depreciation) Investments $(139,198,902) Translation of assets and liabilities in foreign currencies (20,778) - ---------------------------------------------------------------------------------------------------- Net unrealized gain (loss) on investments and foreign currency translation $(139,219,680) - ---------------------------------------------------------------------------------------------------- Net realized and unrealized gain (loss) on investments and foreign currency $125,135,736 - ---------------------------------------------------------------------------------------------------- Change in net assets from operations $122,677,995 - ---------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENTS OF CHANGES IN NET ASSETS These statements describe the increases and/or decreases in net assets resulting from operations, any distributions, and any shareholder transactions. YEARS ENDED 8/31 ---------------------------------- 2007 2006 CHANGE IN NET ASSETS FROM OPERATIONS - ---------------------------------------------------------------------------------------------- Net investment loss $(2,457,741) $(4,365,228) Net realized gain (loss) on investments and foreign currency transactions 264,355,416 93,384,086 Net unrealized gain (loss) on investments and foreign currency translation (139,219,680) (42,339,584) - ---------------------------------------------------------------------------------------------- Change in net assets from operations $122,677,995 $46,679,274 - ---------------------------------------------------------------------------------------------- DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions Class A $(9,377,980) $-- Class B (3,077,555) -- Class C (1,080,474) -- Class I (633,987) -- Class W (1,875) -- Class R (106,755) -- Class R1 (10,327) -- Class R2 (20,208) -- Class R3 (40,449) -- Class R4 (5,764) -- Class R5 (670,116) -- - ---------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(15,025,490) $-- - ---------------------------------------------------------------------------------------------- Change in net assets from fund share transactions $1,535,385,457 $(201,470,391) - ---------------------------------------------------------------------------------------------- Total change in net assets $1,643,037,962 $(154,791,117) - ---------------------------------------------------------------------------------------------- NET ASSETS - ---------------------------------------------------------------------------------------------- At beginning of period 772,231,370 927,022,487 At end of period (including accumulated net investment loss of $103,383 and $45,564, respectively) $2,415,269,332 $772,231,370 - ---------------------------------------------------------------------------------------------- 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 life of a particular share class, if shorter). 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 share class (assuming reinvestment of all distributions) held for the entire period. CLASS A YEARS ENDED 8/31 -------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $17.70 $16.82 $14.71 $14.41 $13.22 - ------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.02) $(0.05) $(0.01) $(0.07) $(0.07) Net realized and unrealized gain (loss) on investments and foreign currency 3.01 0.93 2.12 0.37 1.26 - ------------------------------------------------------------------------------------------------------------- Total from investment operations $2.99 $0.88 $2.11 $0.30 $1.19 - ------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(0.34) $-- $-- $-- $-- - ------------------------------------------------------------------------------------------------------------- Net asset value, end of period $20.35 $17.70 $16.82 $14.71 $14.41 - ------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 17.07 5.23 14.34 2.08(b) 9.00 - ------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.33 1.44 1.38 1.41 1.42 Expenses after expense reductions (f) 1.25 1.34 1.28 1.36 N/A Net investment loss (0.11) (0.31) (0.08) (0.47) (0.52) Portfolio turnover 329 245 184 261 312 Net assets at end of period (000 Omitted) $935,865 $504,761 $632,209 $404,511 $496,271 - ------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS B YEARS ENDED 8/31 -------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $16.98 $16.24 $14.30 $14.09 $13.01 - ------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.14) $(0.16) $(0.11) $(0.16) $(0.15) Net realized and unrealized gain (loss) on investments and foreign currency 2.88 0.90 2.05 0.37 1.23 - ------------------------------------------------------------------------------------------------------------- Total from investment operations $2.74 $0.74 $1.94 $0.21 $1.08 - ------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(0.34) $-- $-- $-- $-- - ------------------------------------------------------------------------------------------------------------- Net asset value, end of period $19.38 $16.98 $16.24 $14.30 $14.09 - ------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 16.31 4.56 13.57 1.49(b) 8.22 - ------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.98 2.09 2.03 2.05 2.07 Expenses after expense reductions (f) 1.90 1.99 1.93 2.00 N/A Net investment loss (0.77) (0.96) (0.73) (1.11) (1.18) Portfolio turnover 329 245 184 261 312 Net assets at end of period (000 Omitted) $303,614 $162,868 $201,513 $138,226 $155,602 - ------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS C YEARS ENDED 8/31 -------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $16.98 $16.23 $14.30 $14.10 $13.02 - ------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.14) $(0.16) $(0.11) $(0.16) $(0.15) Net realized and unrealized gain (loss) on investments and foreign currency 2.88 0.91 2.04 0.36 1.23 - ------------------------------------------------------------------------------------------------------------- Total from investment operations $2.74 $0.75 $1.93 $0.20 $1.08 - ------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(0.34) $-- $-- $-- $-- - ------------------------------------------------------------------------------------------------------------- Net asset value, end of period $19.38 $16.98 $16.23 $14.30 $14.10 - ------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 16.31 4.62 13.50 1.42(b) 8.29 - ------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.98 2.09 2.03 2.05 2.07 Expenses after expense reductions (f) 1.90 1.99 1.93 2.00 N/A Net investment loss (0.76) (0.96) (0.69) (1.12) (1.18) Portfolio turnover 329 245 184 261 312 Net assets at end of period (000 Omitted) $108,950 $58,523 $82,182 $91,225 $110,786 - ------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS I YEARS ENDED 8/31 ---------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $18.15 $17.18 $14.98 $14.63 $13.37 - --------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------- Net investment income (loss) (d) $0.01 $0.00(w) $0.05 $(0.02) $(0.02) Net realized and unrealized gain (loss) on investments and foreign currency 3.14 0.97 2.15 0.37 1.28 - --------------------------------------------------------------------------------------------------------- Total from investment operations $3.15 $0.97 $2.20 $0.35 $1.26 - --------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(0.34) $-- $-- $-- $-- - --------------------------------------------------------------------------------------------------------- Net asset value, end of period $20.96 $18.15 $17.18 $14.98 $14.63 - --------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 17.53 5.65 14.69 2.39(b) 9.42 - --------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 0.93 1.06 1.02 1.06 1.07 Expenses after expense reductions (f) 0.89 0.96 0.92 1.01 N/A Net investment income (loss) 0.06 0.03 0.32 (0.11) (0.16) Portfolio turnover 329 245 184 261 312 Net assets at end of period (000 Omitted) $1,010,075 $34,998 $3,816 $4,136 $4,317 - --------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS W YEARS ENDED 8/31 ------------------------- 2007 2006(i) Net asset value, beginning of period $17.72 $18.35 - ----------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------- Net investment income (loss) (d) $0.05 $(0.00)(w) Net realized and unrealized gain (loss) on investments and foreign currency 3.00 (0.63)(g) - ----------------------------------------------------------------------------------------------------- Total from investment operations $3.05 $(0.63) - ----------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(0.34) $-- - ----------------------------------------------------------------------------------------------------- Net asset value, end of period $20.43 $17.72 - ----------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 17.39 (3.43)(n) - ----------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.07 1.18(a) Expenses after expense reductions (f) 0.99 1.08(a) Net investment income (loss) 0.27 (0.03)(a) Portfolio turnover 329 245 Net assets at end of period (000 Omitted) $373 $97 - ----------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R YEARS ENDED 8/31 ---------------------------------------------------- 2007 2006 2005 2004 2003(i) Net asset value, beginning of period $17.62 $16.77 $14.69 $14.41 $12.35 - --------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.05) $(0.08) $(0.04) $(0.09) $(0.08) Net realized and unrealized gain (loss) on investments and foreign currency 3.00 0.93 2.12 0.37 2.14(g) - --------------------------------------------------------------------------------------------------- Total from investment operations $2.95 $0.85 $2.08 $0.28 $2.06 - --------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(0.34) $-- $-- $-- $-- - --------------------------------------------------------------------------------------------------- Net asset value, end of period $20.23 $17.62 $16.77 $14.69 $14.41 - --------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 16.92 5.07 14.16 1.94(b) 16.68(n) - --------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.49 1.59 1.54 1.56 1.65(a) Expenses after expense reductions (f) 1.40 1.49 1.44 1.51 N/A Net investment loss (0.25) (0.46) (0.25) (0.60) (0.82)(a) Portfolio turnover 329 245 184 261 312 Net assets at end of period (000 Omitted) $4,358 $5,735 $5,904 $3,266 $1,869 - --------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R1 YEARS ENDED 8/31 ---------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $16.95 $16.23 $15.35 - ------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.15) $(0.17) $(0.08) Net realized and unrealized gain (loss) on investments and foreign currency 2.87 0.89 0.96(g) - ------------------------------------------------------------------------------------------------------------- Total from investment operations $2.72 $0.72 $0.88 - ------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(0.34) $-- $-- - ------------------------------------------------------------------------------------------------------------- Net asset value, end of period $19.33 $16.95 $16.23 - ------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 16.22 4.44 5.73(n) - ------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 2.12 2.28 2.35(a) Expenses after expense reductions (f) 2.00 2.09 2.25(a) Net investment loss (0.89) (1.07) (1.21)(a) Portfolio turnover 329 245 184 Net assets at end of period (000 Omitted) $1,517 $506 $80 - ------------------------------------------------------------------------------------------------------------- CLASS R2 YEARS ENDED 8/31 ---------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $17.03 $16.25 $15.35 - ------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.10) $(0.11) $(0.04) Net realized and unrealized gain (loss) on investments and foreign currency 2.89 0.89 0.94(g) - ------------------------------------------------------------------------------------------------------------- Total from investment operations $2.79 $0.78 $0.90 - ------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(0.34) $-- $-- - ------------------------------------------------------------------------------------------------------------- Net asset value, end of period $19.48 $17.03 $16.25 - ------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 16.56 4.80 5.86(n) - ------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.83 1.97 2.04(a) Expenses after expense reductions (f) 1.65 1.73 1.94(a) Net investment loss (0.54) (0.67) (0.67)(a) Portfolio turnover 329 245 184 Net assets at end of period (000 Omitted) $2,047 $2,598 $437 - ------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R3 YEARS ENDED 8/31 --------------------------------------- 2007 2006 2005 2004(i) Net asset value, beginning of period $17.52 $16.70 $14.67 $14.63 - ---------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ---------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.07) $(0.11) $(0.06) $(0.06) Net realized and unrealized gain (loss) on investments and foreign currency 2.97 0.93 2.09 0.10(g) - ---------------------------------------------------------------------------------------------------------- Total from investment operations $2.90 $0.82 $2.03 $0.04 - ---------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(0.34) $-- $-- $-- - ---------------------------------------------------------------------------------------------------------- Net asset value, end of period $20.08 $17.52 $16.70 $14.67 - ---------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 16.73 4.91 13.84 0.27(b)(n) - ---------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.67 1.85 1.82 1.95(a) Expenses after expense reductions (f) 1.54 1.65 1.72 1.90(a) Net investment loss (0.37) (0.60) (0.48) (0.48)(a) Portfolio turnover 329 245 184 261 Net assets at end of period (000 Omitted) $5,728 $1,804 $774 $105 - ---------------------------------------------------------------------------------------------------------- CLASS R4 YEARS ENDED 8/31 ---------------------------- 2007 2006 2005(i) Net asset value, beginning of period $17.69 $16.81 $15.85 - ----------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.03) $(0.06) $(0.03) Net realized and unrealized gain (loss) on investments and foreign currency 3.01 0.94 0.99(g) - ----------------------------------------------------------------------------------------------------------- Total from investment operations $2.98 $0.88 $0.96 - ----------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(0.34) $-- $-- - ----------------------------------------------------------------------------------------------------------- Net asset value, end of period $20.33 $17.69 $16.81 - ----------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 17.02 5.23 6.06(n) - ----------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.37 1.48 1.56(a) Expenses after expense reductions (f) 1.29 1.38 1.46(a) Net investment loss (0.18) (0.36) (0.41)(a) Portfolio turnover 329 245 184 Net assets at end of period (000 Omitted) $1,641 $286 $53 - ----------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R5 YEARS ENDED 8/31 ----------------------------- 2007 2006 2005(i) Net asset value, beginning of period $17.76 $16.83 $15.85 - ---------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ---------------------------------------------------------------------------------------------------- Net investment income (loss) (d) $0.04 $(0.01) $(0.01) Net realized and unrealized gain (loss) on investments and foreign currency 3.01 0.94 0.99(g) - ---------------------------------------------------------------------------------------------------- Total from investment operations $3.05 $0.93 $0.98 - ---------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------- From net realized gain on investments and foreign currency transactions $(0.34) $-- $-- - ---------------------------------------------------------------------------------------------------- Net asset value, end of period $20.47 $17.76 $16.83 - ---------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 17.35 5.53 6.18(n) - ---------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.08 1.19 1.26(a) Expenses after expense reductions (f) 0.99 1.09 1.16(a) Net investment income (loss) 0.21 (0.06) (0.11)(a) Portfolio turnover 329 245 184 Net assets at end of period (000 Omitted) $41,102 $56 $53 - ---------------------------------------------------------------------------------------------------- Any redemption fees charged by the fund during the 2004 and 2005 fiscal years resulted in a per share impact of less than $0.01. (a) Annualized. (b) 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. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (g) 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 per share amount of realized and unrealized gains and losses at such time. (i) For the period from the class' inception, December 31, 2002 (Class R), October 31, 2003 (Class R3), April 1, 2005 (Classes R1, R2, R4, and R5) and May 1, 2006 (Class W) through the stated period end. (n) Not annualized. (r) Certain expenses have been reduced without which performance would have been lower. (s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. (t) Total returns do not include any applicable sales charges. (w) Per share amount was 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 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, including securities of emerging market issuers. 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. The markets of emerging markets countries are generally more volatile than the markets of developed countries with more mature economies. All of the risks of investing in foreign securities previously described are heightened when investing in emerging markets countries. INVESTMENT VALUATIONS - Equity securities, including restricted equity securities, are generally valued at the last sale or official closing price as reported by an independent pricing service on the market or exchange on which they are primarily traded. For securities for which there were no sales reported that day, equity securities are generally valued at the last quoted daily bid quotation as reported by an independent pricing service on the market or exchange on which they are primarily traded. For securities held short for which there were no sales reported for the day, the position is generally valued at the last quoted daily ask quotation as reported by an independent pricing service on the market or exchange on which such securities are primarily traded. Short-term instruments with a maturity at issuance of 60 days or less may be valued at amortized cost, which approximates market value. Open-end investment companies are generally valued at their net asset value per share. Securities and other assets generally valued on the basis of information from an independent pricing service may also be valued at a broker-dealer bid quotation. The values of foreign securities and other assets and liabilities expressed in foreign currencies are converted to U.S. dollars using the mean of bid and asked prices for rates reported by an independent pricing service. The Board of Trustees has delegated primary responsibility for determining or causing to be determined the value of the fund's investments (including any fair valuation) to the adviser pursuant to valuation policies and procedures approved by the Board. If the adviser determines that reliable market quotations are not readily available, investments are valued at fair value as determined in good faith by the adviser in accordance with such procedures under the oversight of the Board of Trustees. Under the fund's valuation policies and procedures, market quotations are not considered to be readily available for many types of debt instruments and certain types of derivatives. These investments are generally valued at fair value based on information from independent pricing services. In addition, investments may be valued at fair value if the adviser determines that an investment's value has been materially affected by events occurring after the close of the exchange or market on which the investment is principally traded (such as foreign exchange or market) and prior to the determination of the fund's net asset value, or after the halting of trading of a specific security where trading does not resume prior to the close of the exchange or market on which the security is principally traded. The adviser may rely on independent pricing services or other information (such as the correlation with price movements of similar securities in the same or other markets; the type, cost and investment characteristics of the security; the business and financial condition of the issuer; and trading and other market data) to assist in determining whether to fair value and at what value to fair value an investment. The value of an investment for purposes of calculating the fund's net asset value can differ depending on the source and method used to determine value. When fair valuation is used, the value of investments used to determine the fund's net asset value may differ from quoted or published prices for the same investments. In September 2006, FASB Statement No. 157, Fair Value Measurements (the "Statement") was issued, and is effective for fiscal years beginning after November 15, 2007 and for all interim periods within those fiscal years. This Statement provides a single definition of fair value, a hierarchy for measuring fair value and expanded disclosures about fair value measurements. Management is evaluating the application of the Statement to the fund, and believes the impact will be limited to expanded disclosures resulting from the adoption of this Statement in the fund's financial statements. 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 and other funds managed by 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. Net 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, 2007, the value of securities loaned was $331,359,193. These loans were collateralized by cash of $338,007,461 and U.S. Treasury obligations of $911,790. INDEMNIFICATIONS - Under the fund's organizational documents, its officers and trustees may be indemnified against certain liabilities and expenses arising out of the performance of their duties to the fund. Additionally, in the normal course of business, the fund enters into agreements with service providers that may contain indemnification clauses. The fund's maximum exposure under these agreements is unknown as this would involve future claims that may be made against the fund that have not yet occurred. 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. Certain dividends from foreign securities will be recorded when the fund is informed of the dividend if such information is obtained subsequent to 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. Any proceeds received from litigation involving portfolio holdings are reflected in the Statement of Operations in realized gain/loss if the security has been disposed of by the fund or in unrealized gain/loss if the security is still held by the fund. Any other proceeds from litigation not related to portfolio holdings are reflected as other income in the Statement of Operations. 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. This amount, for the year ended August 31, 2007, is shown as a reduction of total expenses on the Statement of Operations. TAX MATTERS AND DISTRIBUTIONS - The fund intends to qualify as a regulated investment company, as defined under Subchapter M of the Internal Revenue Code, and to distribute all of its taxable income, including realized capital gains. Accordingly, no provision for federal income tax is required in the financial statements. Foreign taxes, if any, have been accrued by the fund in the accompanying financial statements. Distributions to shareholders are recorded on the ex-dividend date. Income and capital gain distributions are determined in accordance with income tax regulations, which may differ from U.S. generally accepted accounting principles. Certain capital accounts in the financial statements are periodically adjusted for permanent differences in order to reflect their tax character. These adjustments have no impact on net assets or net asset value per share. Temporary differences which arise from recognizing certain items of income, expense, gain or loss in different periods for financial statement and tax purposes will reverse at some time in the future. Distributions in excess of net investment income or net realized gains are temporary overdistributions for financial statement purposes resulting from differences in the recognition or classification of income or distributions for financial statement and tax purposes. Book/tax differences primarily relate to net operating losses, wash sale loss deferrals, and capital loss carryforward and wash sales loss deferrals assumed as a result of the acquisition of MFS Strategic Growth Fund. The tax character of distributions declared to shareholders is as follows: 8/31/07 Ordinary income (including any short-term capital gains) $5,724,975 Long-term capital gain 9,300,515 --------------------------------------------------------------- Total distributions $15,025,490 The fund declared no distributions for the year ended August 31, 2006. The federal tax cost and the tax basis components of distributable earnings were as follows: AS OF 8/31/07 Cost of investments $2,742,492,839 --------------------------------------------------------------- Gross appreciation $94,733,608 Gross depreciation (71,211,909) --------------------------------------------------------------- Net unrealized appreciation (depreciation) $23,521,699 Undistributed long-term capital gain 42,737,825 Capital loss carryforwards (1,108,630,370) Other temporary differences (1,091,980) As of August 31, 2007, the fund had capital loss carryforwards available to offset future realized gains. Such losses expire as follows: 8/31/08 $(156,066,288) 8/31/09 (608,534,951) 8/31/10 (313,996,156) 8/31/11 (30,032,975) -------------------------------------------------- $(1,108,630,370) The availability of a portion of the capital loss carryforwards for MFS Core Growth Fund and the capital loss carryforwards, which were acquired on June 22, 2007 in connection with the MFS Strategic Growth Fund merger, may be limited in a given year. In June 2006, FASB Interpretation No. 48, Accounting for Uncertainty in Income Taxes (the "Interpretation") was issued, and is effective for fiscal years beginning after December 15, 2006 and is to be applied to all open tax years as of the effective date. On December 22, 2006, the SEC delayed the implementation of the Interpretation for regulated investment companies for an additional six months. This Interpretation prescribes a minimum threshold for financial statement recognition of the benefit of a tax position taken or expected to be taken in a tax return, and requires certain expanded disclosures. Management has evaluated the application of the Interpretation to the fund, and has determined that there is no impact resulting from the adoption of this Interpretation on the fund's financial statements. 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 management and related administrative services and facilities to the fund. At the commencement 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 June 23, 2007, the management fee is computed daily and paid monthly at the following annual rates: First $1 billion of average daily net assets 0.75% Next $1.5 billion of average daily net assets 0.65% Average daily net assets in excess of $2.5 billion 0.60% 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% on the first $1 billion of the fund's average daily net assets for the period March 1, 2004 through February 28, 2009. For the year ended August 31, 2007, this waiver amounted to $840,472 and is reflected as a reduction of total expenses in the Statement of Operations. The management fee incurred for the year ended August 31, 2007 was equivalent to an annual effective rate of 0.65% of the fund's average daily net assets. Effective June 23, 2007, the investment adviser has agreed in writing to pay a portion of the fund's operating expenses, exclusive of certain other fees and expenses, such that total annual fund operating expenses do not exceed the following rates annually of the fund's average daily net assets with respect to each class: CLASS A CLASS B CLASS C CLASS I CLASS R CLASS R1 CLASS R2 CLASS R3 CLASS R4 CLASS R5 CLASS W 1.26% 1.91% 1.91% 0.91% 1.41% 2.01% 1.66% 1.56% 1.31% 1.01% 1.01% This written agreement will continue through February 28, 2009 unless changed or rescinded by the fund's Board of Trustees. For the year ended August 31, 2007, the fund's actual operating expenses did not exceed the limits and therefore, the investment adviser did not pay any portion of the fund's expenses. DISTRIBUTOR - MFS Fund Distributors, Inc. (MFD), a wholly-owned subsidiary of MFS, as distributor, received $65,132 for the year ended August 31, 2007, 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 MFD and another component of the plan is a service fee paid to MFD. MFD may subsequently pay all, or a portion, of the distribution and/or service fees to financial intermediaries. Distribution Fee Plan Table: TOTAL ANNUAL DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE AND SERVICE FEE RATE FEE RATE PLAN (d) RATE (e) FEE Class A 0.10% 0.25% 0.35% 0.35% $2,067,824 Class B 0.75% 0.25% 1.00% 1.00% 1,897,234 Class C 0.75% 0.25% 1.00% 1.00% 673,384 Class W 0.10% -- 0.10% 0.10% 252 Class R 0.25% 0.25% 0.50% 0.50% 26,536 Class R1 0.50% 0.25% 0.75% 0.75% 4,622 Class R2 0.25% 0.25% 0.50% 0.50% 7,984 Class R3 0.25% 0.25% 0.50% 0.50% 14,176 Class R4 -- 0.25% 0.25% 0.25% 1,679 - ---------------------------------------------------------------------------------------------------------- Total Distribution and Service Fees $4,693,691 (d) 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. (e) The annual effective rates represent actual fees incurred under the distribution plan for the year ended August 31, 2007 based on each class' average daily net assets. 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 of purchase. Class B shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within six years of purchase. All contingent deferred sales charges are paid to MFD and during the year ended August 31, 2007, were as follows: AMOUNT Class A $6,774 Class B 247,228 Class C 8,195 SHAREHOLDER SERVICING AGENT - MFS Service Center, Inc. (MFSC), a wholly-owned subsidiary of MFS, receives a fee from the fund for its services as shareholder servicing agent calculated as a percentage of the average daily net assets of the fund as determined periodically under the supervision of the fund's Board of Trustees. For the year ended August 31, 2007, the fee was $637,269, which equated to 0.0571% annually of the fund's average daily net assets. MFSC also receives payment from the fund for out-of-pocket expenses, sub-accounting and other shareholder servicing costs which may be paid to affiliated and unaffiliated service providers. For the year ended August 31, 2007, these out-of-pocket expenses, sub-accounting and other shareholder servicing costs amounted to $1,090,665. The fund may also pay shareholder servicing related costs directly to non-related parties. Effective May 1, 2007, under a Special Servicing Agreement among MFS, each MFS fund which invests in other MFS funds ("MFS fund-of-funds") and each underlying fund in which a MFS fund-of-funds invests ("underlying funds"), each underlying fund may pay a portion of each MFS fund-of-fund's transfer agent-related expenses, including sub-accounting fees payable to financial intermediaries, to the extent such payments do not exceed the benefits realized or expected to be realized by the underlying fund from the investment in the underlying fund by the MFS fund-of-fund. For the year ended August 31, 2007 these costs for the fund amounted to $199,148 and are reflected in the shareholder servicing costs on the Statement of Operations. ADMINISTRATOR - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to the fund. Under an administrative services agreement, the fund partially reimburses MFS the costs incurred to provide these services. The fund is charged a fixed amount plus a fee based on average daily net assets. The fund's annual fixed amount is $17,500. The administrative services fee incurred for the year ended August 31, 2007 was equivalent to an annual effective rate of 0.0177% 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 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. MFS may subsequently pay all, or a portion, of the retirement plan administration and services fee to affiliated or unaffiliated third parties. For the year ended August 31, 2007, the fund paid MFS an annual retirement plan administration and services fee up to the following annual percentage rates of each class' average daily net assets: BEGINNING OF ANNUAL PERIOD THROUGH EFFECTIVE EFFECTIVE TOTAL 3/31/07 4/01/07 RATE (g) AMOUNT Class R1 0.45% 0.35% 0.35% $2,447 Class R2 0.40% 0.25% 0.25% 5,378 Class R3 0.25% 0.15% 0.15% 5,551 Class R4 0.15% 0.15% 0.15% 1,007 Class R5 0.10% 0.10% 0.10% 34,629 - ------------------------------------------------------------------------------- Total Retirement Plan Administration and Services Fees $49,012 (g) Prior to April 1, 2007, MFS had agreed in writing to waive a portion of the retirement plan administration and services fee equal to 0.10% for Class R1, 0.15% for Class R2, and 0.10% for Class R3 shares. This agreement was discontinued on March 31, 2007. On April 1, 2007, the annual retirement plan administration and services fee for Class R1, Class R2, and Class R3 shares was lowered to 0.35%, 0.25%, and 0.15%, respectively. For the year ended August 31, 2007, the waiver amounted to $2,990 and is reflected as a reduction of total expenses in the Statement of Operations. TRUSTEES' AND OFFICERS' 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 or officers of the fund who are also officers of the investment adviser, 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 certain retired independent trustees which resulted in a pension expense of $669. The fund also has an unfunded retirement benefit deferral plan for certain independent trustees which resulted in an expense of $5,836. Both amounts are included in independent trustees' compensation for the year ended August 31, 2007. The liability for deferred retirement benefits payable to certain independent trustees under both plans amounted to $101,518 at August 31, 2007, and is included in payable for independent 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. The funds can terminate the Agreement with Tarantino LLC at any time under the terms of the Agreement. For the year ended August 31, 2007, the fee paid to Tarantino LLC was $6,451. MFS has agreed to reimburse the fund for a portion of the payments made by the funds to Tarantino LLC in the amount of $5,262, 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. (4) PORTFOLIO SECURITIES Purchases and sales of investments, other than U.S. government securities, purchased option transactions, and short-term obligations, aggregated $3,364,878,897 and $3,348,352,715, respectively. (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 YEAR ENDED 8/31/07 8/31/06(i) SHARES AMOUNT SHARES AMOUNT Shares sold Class A 13,388,482 $265,485,268 6,430,188 $113,225,460 Class B 1,246,753 23,851,828 887,359 15,079,814 Class C 460,974 8,552,816 433,212 7,356,579 Class I 1,004,669 21,159,042 1,970,276 33,949,254 Class W 12,717 244,000 5,450 100,000 Class R 172,019 3,447,183 76,939 1,357,467 Class R1 90,417 1,725,253 29,696 489,931 Class R2 145,455 2,713,258 147,706 2,457,779 Class R3 324,455 6,310,010 88,327 1,546,974 Class R4 84,633 1,689,361 13,738 235,417 Class R5 3,219,949 62,277,270 4 75 - ------------------------------------------------------------------------------------------------------- 20,150,523 $397,455,289 10,082,895 $175,798,750 Shares issued in connection with acquisition of MFS Strategic Growth Fund Class A 18,077,575 $367,990,280 Class B 8,840,345 171,558,817 Class C 2,911,887 56,507,733 Class I 46,332,267 970,428,170 Class W -- -- Class R 7,671 155,258 Class R1 -- -- Class R2 1,774 34,596 Class R3 -- -- Class R4 6,710 136,434 Class R5 -- -- - ------------------------------------------------------------------------------------------------------- 76,178,229 $1,566,811,288 Shares issued to shareholders in reinvestment of distributions Class A 415,969 $7,845,189 -- $-- Class B 158,310 2,855,925 -- -- Class C 43,991 793,595 -- -- Class I 32,730 633,987 -- -- Class W 99 1,875 -- -- Class R 4,942 92,701 -- -- Class R1 573 10,327 -- -- Class R2 1,117 20,208 -- -- Class R3 2,169 40,449 -- -- Class R4 306 5,764 -- -- Class R5 17,732 335,669 -- -- - ------------------------------------------------------------------------------------------------------- 677,938 $12,635,689 -- $-- Shares reacquired Class A (14,418,252) $(278,902,684) (15,505,829) $(271,914,439) Class B (4,171,632) (78,131,818) (3,706,240) (62,822,571) Class C (1,241,897) (22,906,664) (2,048,446) (35,022,100) Class I (1,097,809) (22,425,838) (264,308) (4,682,666) Class W -- -- -- -- Class R (294,694) (5,743,417) (103,586) (1,796,528) Class R1 (42,344) (782,282) (4,778) (79,351) Class R2 (195,851) (3,544,321) (22,019) (382,432) Class R3 (144,372) (2,747,709) (31,732) (556,427) Class R4 (27,099) (529,757) (727) (12,551) Class R5 (1,233,025) (25,802,319) (4) (76) - ------------------------------------------------------------------------------------------------------- (22,866,975) $(441,516,809) (21,687,669) $(377,269,141) Net change Class A 17,463,774 $362,418,053 (9,075,641) $(158,688,979) Class B 6,073,776 120,134,752 (2,818,881) (47,742,757) Class C 2,174,955 42,947,480 (1,615,234) (27,665,521) Class I 46,271,857 969,795,361 1,705,968 29,266,588 Class W 12,816 245,875 5,450 100,000 Class R (110,062) (2,048,275) (26,647) (439,061) Class R1 48,646 953,298 24,918 410,580 Class R2 (47,505) (776,259) 125,687 2,075,347 Class R3 182,252 3,602,750 56,595 990,547 Class R4 64,550 1,301,802 13,011 222,866 Class R5 2,004,656 36,810,620 -- (1) - ------------------------------------------------------------------------------------------------------- 74,139,715 $1,535,385,457 (11,604,774) $(201,470,391) (i) For the period from the class' inception, May 1, 2006 (Class W) through the stated period end. The fund is one of several mutual funds in which the MFS funds-of-funds may invest. The MFS funds-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 Growth Allocation Fund, MFS Aggressive Growth Allocation Fund, MFS Moderate Allocation Fund, and MFS Conservative Allocation Fund were the owners of record of approximately 17%, 11%, 9% and 2%, respectively, of the value of outstanding voting shares. In addition, the MFS Lifetime 2010 Fund, MFS Lifetime 2020 Fund, the MFS Lifetime 2030 Fund, and the MFS Lifetime 2040 Fund were each the owners of record of less than 1% of the value of outstanding voting shares. (6) LINE OF CREDIT The fund and other funds managed by MFS participate in a $1 billion unsecured committed line of credit provided by a syndication of banks under a credit agreement. In addition, the fund and other funds managed by MFS have established uncommitted borrowing arrangements with certain banks. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its borrowings, generally at a rate equal to the Federal Reserve funds rate plus 0.30%. In addition, a commitment fee, based on the average daily, unused portion of the committed line of credit, is allocated among the participating funds at the end of each calendar quarter. For the year ended August 31, 2007, the fund's commitment fee and interest expense were $4,065 and $1,357, respectively, and are included in miscellaneous expense on the Statement of Operations. (7) ACQUISITIONS At close of business on June 22, 2007, the fund acquired all of the assets and liabilities of MFS Strategic Growth Fund. The acquisition was accomplished by a tax-free exchange of 76,178,229 shares of the fund (valued at $1,566,811,288) for all of the assets and liabilities of MFS Strategic Growth Fund. MFS Strategic Growth Fund then converted all of its outstanding shares for the shares of the fund and distributed those shares to its shareholders. MFS Strategic Growth fund's net assets on that date were $1,566,811,288, including $169,387,162 of unrealized appreciation, $2,727,436 of accumulated net investment loss, and $1,274,617,411 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 $2,392,029,136. 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, 2007, 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, 2007, by correspondence with the Fund's 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, 2007, 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 16, 2007 TRUSTEES AND OFFICERS -- IDENTIFICATION AND BACKGROUND The Trustees and officers of the Trust, as of October 1, 2007, 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(h) OTHER DIRECTORSHIPS(j) - ------------------- ------------------- --------------- ---------------------------------- INTERESTED TRUSTEES Robert J. Manning(k) Trustee February 2004 Massachusetts Financial Services (born 10/20/63) Company, Chief Executive Officer, President, Chief Investment Officer and Director Robert C. Pozen(k) Trustee February 2004 Massachusetts Financial Services (born 8/08/46) Company, Chairman (since February 2004); MIT Sloan School (education), Senior Lecturer (since 2006); 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 5/01/36) of Trustees Enterprises (diversified services company), Chairman, Trustee and Chief Executive Officer (until November 2000) Robert E. Butler(n) Trustee January 2006 Consultant - regulatory and (born 11/29/41) compliance matters (since July 2002); PricewaterhouseCoopers LLP (professional services firm), Partner (until 2002) Lawrence H. Cohn, M.D. Trustee August 1993 Brigham and Women's Hospital, (born 3/11/37) Chief of Cardiac Surgery (2005); Harvard Medical School, Professor of Cardiac Surgery; Physician Director of Medical Device Technology for Partners HealthCare David H. Gunning Trustee January 2004 Retired; Cleveland-Cliffs Inc. (born 5/30/42) (mining products and service provider), Vice Chairman/Director (until May 2007); Portman Limited (mining), Director (since 2005); 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 9/27/41) consultant; Capitol Entertainment Management Company (video franchise), Vice Chairman; Atlantic Coast Tan (tanning salons), Vice Chairman (since 2002) 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) Lawrence T. Perera Trustee July 1981 Hemenway & Barnes (attorneys), (born 6/23/35) Partner J. Dale Sherratt Trustee August 1993 Insight Resources, Inc. (born 9/23/38) (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 New Profit, Inc. (venture (born 8/05/57) philanthropy), Partner (since 2006); Private investor; Prism Venture Partners (venture capital), Co-founder and General Partner (until June 2004); The Travelers Companies (commercial property liability insurance), Director Robert W. Uek Trustee January 2006 Retired (since 1999); (born 5/18/41) PricewaterhouseCoopers LLP (professional services firm), Partner (until 1999); Consultant to investment company industry (since 2000); TT International Funds (mutual fund complex), Trustee (2000 until 2005); Hillview Investment Trust II Funds (mutual fund complex), Trustee (2000 until 2005) OFFICERS Maria F. Dwyer(k) President November 2005 Massachusetts Financial Services (born 12/01/58) Company, Executive Vice President and Chief Regulatory Officer (since March 2004) Chief Compliance Officer (since December 2006); Fidelity Management & Research Company, Vice President (prior to March 2004); Fidelity Group of Funds, President and Treasurer (prior to March 2004) Tracy Atkinson(k) 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(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 1/18/74) and Assistant Clerk Company, Vice President and Senior Counsel (since April 2003); Kirkpatrick & Lockhart LLP (law firm), Associate (prior to April 2003) Ethan D. Corey(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 11/21/63) and Assistant Clerk Company, Special Counsel (since December 2004); Dechert LLP (law firm), Counsel (prior to December 2004) David L. DiLorenzo(k) Assistant Treasurer July 2005 Massachusetts Financial Services (born 8/10/68) Company, Vice President (since June 2005); JP Morgan Investor Services, Vice President (prior to June 2005) Mark D. Fischer(k) Assistant Treasurer July 2005 Massachusetts Financial Services (born 10/27/70) Company, Vice President (since May 2005); JP Morgan Investment Management Company, Vice President (prior to May 2005) Brian E. Langenfeld(k) Assistant Secretary June 2006 Massachusetts Financial Services (born 3/07/73) and Assistant Clerk Company, Assistant Vice President and Counsel (since May 2006); John Hancock Advisers, LLC, Assistant Vice President and Counsel (May 2005 to April 2006); John Hancock Advisers, LLC, Attorney and Assistant Secretary (prior to May 2005) Ellen Moynihan(k) Assistant Treasurer April 1997 Massachusetts Financial Services (born 11/13/57) Company, Senior Vice President Susan S. Newton(k) Assistant Secretary May 2005 Massachusetts Financial Services (born 3/07/50) and Assistant Clerk Company, Senior Vice President and 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(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 11/05/70) and Assistant Clerk Company, Vice President and Senior Counsel (since June 2004); Bingham McCutchen LLP (law firm), Associate (prior to June 2004) Mark N. Polebaum(k) Secretary and Clerk January 2006 Massachusetts Financial Services (born 5/01/52) Company, Executive Vice President, General Counsel and Secretary (since January 2006); Wilmer Cutler Pickering Hale and Dorr LLP (law firm), Partner (prior to January 2006) Frank L. Tarantino Independent Chief June 2004 Tarantino LLC (provider of (born 3/07/44) Compliance Officer compliance services), Principal (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 (prior to March 2003) James O. Yost(k) Assistant Treasurer September 1990 Massachusetts Financial Services (born 6/12/60) Company, Senior Vice President - ------------ (h) Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served continuously since appointment unless indicated otherwise. (j) Directorships or trusteeships of companies required to report to the Securities and Exchange Commission (i.e., "public companies"). (k) "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. (n) In 2004 and 2005, Mr. Butler provided consulting services to the independent compliance consultant retained by MFS pursuant to its settlement with the SEC concerning market timing and related matters. The terms of that settlement required that compensation and expenses related to the independent compliance consultant be borne exclusively by MFS and, therefore, MFS paid Mr. Butler for the services he rendered to the independent compliance consultant. In 2004 and 2005, MFS paid Mr. Butler a total of $351,119.29. The Trust held a shareholders' meeting in 2005 to elect Trustees, and will hold a shareholders' meeting at least once every five years thereafter, to elect Trustees. Each Trustee (except Mr. Butler and Mr. Uek) has been elected by share- holders 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. Butler, Gutow, Sherratt and Uek and Ms. 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 January 1, 2007, the Trustees served as board members of 97 funds within the MFS Family of Funds. 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, 2007 ("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 that included, among other items: (i) information provided by Lipper Inc. on the investment performance of the Fund for various time periods ended December 31, 2006 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 ("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 MFS peer funds, (iii) information provided by MFS on the advisory fees of comparable portfolios of other clients of MFS, including institutional separate accounts 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 in 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, 2006, which the Trustees believed was a long enough period to reflect differing market conditions. The total return performance of the Fund's Class A shares was in the 1st quintile relative to the other funds in the universe for this three-year period (the 1st quintile being the best performers and the 5th quintile being the worst performers). The total return performance of the Fund's Class A shares was in the 1st quintile for the one-year period and the 3rd quintile for the five-year period ended December 31, 2006 relative to the Lipper performance universe. Because of the passage of time, these performance results may 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 daily 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 that there is an advisory fee reduction in effect for the Fund through February 28, 2009 as part of MFS' settlement with the New York Attorney General concerning market timing and related matters. The Trustees also considered that, according to the Lipper data (which takes into account the advisory fee reduction), the Fund's effective advisory fee rate was approximately at the Lipper expense group median, and the Fund's total expense ratio was 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 was amended in June 2007 in connection with the merger of another MFS Fund into the Fund to reduce the Fund's annual advisory fee rate by 0.10% on average daily net assets over $1 billion and by an additional 0.05% on average daily net assets over $2.5 billion. Taking into account the advisory fee reduction noted above, which will continue to result in a reduction of the advisory fee on the first $1 billion of net assets through February 28, 2009, and the addition of advisory fee breakpoints in June 2007, 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 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 that 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, which may include 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, if applicable, to pay for investment research (excluding third-party research, for which MFS pays directly), 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, 2007. A discussion regarding the Board's most recent review and renewal of the Fund's investment advisory agreement will be available on or before November 1, 2007 by clicking on the fund's name under "Select a fund" on the MFS Web site (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 100 F Street, NE, Room 1580 Washington, D.C. 20549 Information on the operation of the Public Reference Room may be obtained by calling the Commission at 1-202-551-5850. The fund's Form N-Q is available on the EDGAR database on the Commission's Internet Web site 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) The fund will notify shareholders of amounts for use in preparing 2007 income tax forms in January 2008. The following information is provided pursuant to provisions of the Internal Revenue Code. The fund designates $9,300,515 as capital gain dividends paid during the fiscal year. MFS(R) PRIVACY NOTICE Privacy is a concern for every investor today. At MFS Investment Management(R) and the MFS funds, we take this concern very seriously. We want you to understand our policies about the investment products and services that we offer, and how we protect the nonpublic personal information of investors who have a direct relationship with us and our wholly owned subsidiaries. Throughout our business relationship, you provide us with personal information. We maintain information and records about you, your investments, and the services you use. Examples of the nonpublic personal information we maintain include o data from investment applications and other forms o share balances and transactional history with us, our affiliates, or others o facts from a consumer reporting agency We do not disclose any nonpublic personal information about our customers or former customers to anyone, except as permitted by law. We may share nonpublic personal information with third parties or certain of our affiliates in connection with servicing your account or processing your transactions. We may share information with companies or financial institutions that perform marketing services on our behalf or with other financial institutions with which we have joint marketing arrangements, subject to any legal requirements. Authorization to access your nonpublic personal information is limited to appropriate personnel who provide products, services, or information to you. We maintain physical, electronic, and procedural safeguards to help protect the personal information we collect about you. If you have any questions about the MFS privacy policy, please call 1-800-225-2606 any business day between 8 a.m. and 8 p.m. Eastern time. Note: If you own MFS products or receive MFS services in the name of a third party such as a bank or broker-dealer, their privacy policy may apply to you instead of ours. CONTACT US WEB SITE MAILING ADDRESS mfs.com MFS Service Center, Inc. P.O. Box 55824 MFS TALK Boston, MA 02205-5824 1-800-637-8255 24 hours a day OVERNIGHT MAIL MFS Service Center, Inc. ACCOUNT SERVICE AND 500 Boylston Street LITERATURE Boston, MA 02116-3741 SHAREHOLDERS 1-800-225-2606 8 a.m. to 8 p.m. ET INVESTMENT PROFESSIONALS 1-800-343-2829 8 a.m. to 8 p.m. ET RETIREMENT PLAN SERVICES 1-800-637-1255 8 a.m. to 8 p.m. ET - ------------------------------------------------------------------------------- Go paperless with eDELIVERY: Arrange to have MFS(R) send prospectuses, reports, and proxies directly to your e-mail inbox. You'll get timely information and less clutter in your mailbox (not to mention help your fund save printing and postage costs). SIGN UP: If your account is registered with us, simply go to MFS.COM, log in to your account via MFS(R) Access, and select the eDelivery sign up options. If you own your MFS fund shares through a financial institution or a retirement plan, MFS(R) TALK, MFS Access, and eDelivery may not be available to you. - ------------------------------------------------------------------------------- M F S(R) INVESTMENT MANAGEMENT M F S(R) INVESTMENT MANAGEMENT [graphic omitted] ANNUAL REPORT MFS(R) NEW DISCOVERY FUND LETTER FROM THE CEO 1 - ------------------------------------------------------------- PORTFOLIO COMPOSITION 2 - ------------------------------------------------------------- MANAGEMENT REVIEW 3 - ------------------------------------------------------------- PERFORMANCE SUMMARY 6 - ------------------------------------------------------------- EXPENSE TABLE 9 - ------------------------------------------------------------- PORTFOLIO OF INVESTMENTS 11 - ------------------------------------------------------------- STATEMENT OF ASSETS AND LIABILITIES 17 - ------------------------------------------------------------- STATEMENT OF OPERATIONS 20 - ------------------------------------------------------------- STATEMENTS OF CHANGES IN NET ASSETS 22 - ------------------------------------------------------------- FINANCIAL HIGHLIGHTS 23 - ------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS 31 - ------------------------------------------------------------- REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 42 - ------------------------------------------------------------- TRUSTEES AND OFFICERS 43 - ------------------------------------------------------------- BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT 49 - ------------------------------------------------------------- PROXY VOTING POLICIES AND INFORMATION 53 - ------------------------------------------------------------- QUARTERLY PORTFOLIO DISCLOSURE 53 - ------------------------------------------------------------- FEDERAL TAX INFORMATION 53 - ------------------------------------------------------------- MFS(R) PRIVACY NOTICE 54 - ------------------------------------------------------------- CONTACT INFORMATION BACK COVER - ------------------------------------------------------------- THE 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. - ------------------------------------------------------------------------------ NOT FDIC INSURED o MAY LOSE VALUE o NO BANK OR CREDIT UNION GUARANTEE o NOT A DEPOSIT o NOT INSURED BY ANY FEDERAL GOVERNMENT AGENCY OR NCUA/NCUSIF - ------------------------------------------------------------------------------ 8/31/07 NDF-ANN LETTER FROM THE CEO [Photo of Robert J. Manning] LETTER FROM THE CEO Dear Shareholders: The past year has been a great example of why investors should keep their eyes on the long term. In 2006 the Dow Jones Industrial Average returned 19%. But the Dow's upward rise has not been without hiccups. After hitting new records in July 2007, the Dow lost 8% in the following weeks as a crisis swept global credit markets. As we have said before, markets can be volatile, and investors should make sure they have an investment plan that can carry them through the peaks and troughs. If you are focused on a long-term investment strategy, the short-term ups and downs of the markets should not necessarily dictate portfolio action on your part. Both the bond and stock markets are cyclical. In our view, investors who remain committed to a long-term plan are more likely to achieve their financial goals. We believe you should not let the headlines guide you in your investment decisions and should be cautious about overreacting to short- term volatility. In any market environment, we believe individual investors are best served by following a three-pronged investment strategy of allocating their holdings across the major asset classes, diversifying within each class, and regularly rebalancing their portfolios to maintain their desired allocations. Of course, these strategies cannot guarantee a profit or protect against a loss. Investing and planning for the long term require diligence and patience, two traits that in our experience are essential to capitalizing on the many opportunities the financial markets can offer -- through both up and down economic cycles. Respectfully, /s/ Robert J. Manning Robert J. Manning Chief Executive Officer and Chief Investment Officer MFS Investment Management(R) October 15, 2007 The opinions expressed in this letter are subject to change, may not be relied upon for investment advice, and no forecasts can be guaranteed. PORTFOLIO COMPOSITION PORTFOLIO STRUCTURE Common Stocks 98.8% Cash & Other Net Assets 0.2% TOP TEN HOLDINGS Corporate Executive Board Co. 3.3% ------------------------------------------------ NICE Systems Ltd., ADR 2.6% ------------------------------------------------ Panera Bread Co. 2.5% ------------------------------------------------ MWI Veterinary Supply, Inc. 2.3% ------------------------------------------------ Central Garden & Pet Co., "A" 2.1% ------------------------------------------------ ATMI, Inc. 2.0% ------------------------------------------------ Hittite Microwave Corp. 1.9% ------------------------------------------------ Citi Trends, Inc. 1.9% ------------------------------------------------ Red Robin Gourmet Burgers, Inc. 1.9% ------------------------------------------------ North American Energy Partners, Inc. 1.9% ------------------------------------------------ EQUITY SECTORS Health Care 24.4% ------------------------------------------------ Technology 19.1% ------------------------------------------------ Retailing 11.1% ------------------------------------------------ Leisure 10.2% ------------------------------------------------ Special Products & Services 8.3% ------------------------------------------------ Industrial Goods & Services 5.9% ------------------------------------------------ Energy 4.8% ------------------------------------------------ Financial Services 4.1% ------------------------------------------------ Consumer Staples 3.7% ------------------------------------------------ Utilities & Communications 2.6% ------------------------------------------------ Autos & Housing 2.1% ------------------------------------------------ Basic Materials 2.0% ------------------------------------------------ Transportation 1.5% ------------------------------------------------ Percentages are based on net assets as of 08/31/07. The portfolio is actively managed and current holdings may be different. MANAGEMENT REVIEW SUMMARY OF RESULTS For the twelve months ended August 31, 2007, Class A shares of the MFS New Discovery Fund provided a total return of 20.75%, at net asset value. This compares with a return of 16.36% for the fund's benchmark, the Russell 2000 Growth Index. MARKET ENVIRONMENT The U.S. economy continues to decouple from the rest of the world, growing at a slower pace than other major economies. Overall, global economies have seen moderate to strong growth over the last twelve months as domestic demand improves and world trade accelerates. With the stronger growth, however, has come increased concern about rising global inflation, especially as capacity becomes more constrained, wages rise, and energy and food prices advance. Late in the reporting period, continued robust global growth and fears of rising inflationary pressures led global central banks to tighten monetary conditions beyond market expectations, which in turn pushed global bond yields to their highest levels during this economic expansion. However, beginning in late July and August, heightened uncertainty and distress concerning the subprime mortgage market caused several global credit markets to seize up, forcing central banks to inject liquidity and to reassess their tightening biases as sovereign bond yields plummeted and credit spreads widened considerably. Increased market volatility has been exacerbated by U.S. home foreclosures, falling housing prices, and weaker-than-expected jobs growth reported by the U.S. Department of Labor. Despite increased volatility across all asset classes, and the widening in credit spreads, global equity markets have experienced only a mild correction to date. CONTRIBUTORS TO PERFORMANCE For the New Discovery Fund, stock selection in the energy sector was a positive factor for relative performance over the reporting period. Within the sector, our positioning in energy solutions conversion provider Dresser-Rand(aa) was the most significant contributor. Stock selection in the technology sector also benefited performance. The fund's holdings of speech and imaging software firm Nuance Communications added to results. The stock's price surged as the company's new technology has improved the accuracy of speech to text software. Investors bid up the stock price in response to better-than-expected earnings and strong growth prospects in under-penetrated end markets. Elsewhere in the sector, our holdings in data center software provider Opsware(g) and data recording products provider NICE Systems(aa) aided performance as both stocks surpassed the index over the period. The stock price of Opsware surged after the company agreed to be acquired by Hewlett-Packard at a substantial premium. Stock selection in the special products and services sector was another positive. Chinese education services company New Oriental Education and Technology Group(aa) was the key driver within the sector. The company share price advanced in response to strong earnings reports and investor enthusiasm for the company's tremendous growth opportunities through expanding both its number of teaching locations and its curriculum in China. Stocks in other sectors that benefited performance included infrastructure services firm Infrasource Services(g), Ventana Medical Systems(g), and gaming machines manufacturer WMS Industries. Non-benchmark constituents, apparel retailer Urban Outfitters(aa) and sporting goods retailer Dick's Sporting Goods(aa), also helped. DETRACTORS FROM PERFORMANCE The principal negative factors affecting relative performance were an underweighted position in the industrial goods and services sector along with weak stock selection in autos and housing. No individual securities within either sector were among the top detractors. Stock selection also hindered results in the basic materials sector. Not holding index constituent, AK Steel, detracted as the firm turned in superior results over the period. Elsewhere, our positioning in Advanced Medical Optics(aa), a medical device maker for the eyes, and medical equipment company Aspect Medical Systems hurt results as both stocks underperformed the index over the reporting period. Advanced Medical Optics declined in response to slower-than-expected volume growth for its new refractive interocular lens product for cataract surgery patients and a recall of its Complete MoisturePlus contact lens solutions. The share price of Aspect Medical, which manufactures the BIS anesthesia monitoring system, declined due to slower-than-expected market share gains. Our holdings in mortgage financer Accredited Home Lenders(g)(aa) and business research and analysis services provider Corporate Executive Board proved disappointing as both stocks lagged the index. Shares of Accredited Home Lenders plummeted due to industry-wide problems of falling demand, rising costs, and challenges in selling off loan portfolios above or even at par value. Electronic payments software producer ACI Worldwide and urban fashion apparel retailer Citi Trends also held back results. Respectfully, Thomas Wetherald Portfolio Manager (aa) Security is not a benchmark constituent. (g) 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 or 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 portfolio. References to specific securities are not recommendations of such securities, and may not be representative of any MFS portfolio's current or future investments. PERFORMANCE SUMMARY THROUGH 8/31/07 The following chart illustrates a representative class of the fund's historical performance 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. The performance of other share classes will be greater than or less than that of the class depicted below. Benchmark comparisons are unmanaged; do not reflect sales charges, commissions or expenses; and cannot be invested in directly. (See Notes to Performance Summary). PERFORMANCE DATA SHOWN REPRESENTS PAST PERFORMANCE AND IS NO GUARANTEE OF FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE FLUCTUATE SO YOUR SHARES, WHEN SOLD, MAY BE WORTH MORE OR LESS THAN THE ORIGINAL COST; CURRENT PERFORMANCE MAY BE LOWER OR HIGHER THAN QUOTED. 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 MFS New Discovery Russell 2000 Fund - Class A Growth Index 8/97 $ 9,425 $10,000 8/98 8,966 7,369 8/99 12,412 10,561 8/00 21,922 14,687 8/01 17,018 9,556 8/02 12,619 7,069 8/03 15,334 9,536 8/04 14,240 9,858 8/05 17,734 12,176 8/06 17,850 12,907 8/07 21,554 15,018 TOTAL RETURNS THROUGH 8/31/07 AVERAGE ANNUAL WITHOUT SALES CHARGE Share class Class inception date 1-yr 5-yr 10-yr - ---------------------------------------------------------------------------- A 1/02/97 20.75% 11.30% 8.62% - ---------------------------------------------------------------------------- B 11/03/97 20.00% 10.59% 7.94% - ---------------------------------------------------------------------------- C 11/03/97 19.98% 10.58% 7.95% - ---------------------------------------------------------------------------- I 1/02/97 21.22% 11.69% 9.02% - ---------------------------------------------------------------------------- R 12/31/02 20.63% 11.16% 8.55% - ---------------------------------------------------------------------------- R1 4/01/05 19.86% 10.88% 8.42% - ---------------------------------------------------------------------------- R2 4/01/05 20.33% 11.06% 8.51% - ---------------------------------------------------------------------------- R3 10/31/03 20.44% 11.02% 8.49% - ---------------------------------------------------------------------------- R4 4/01/05 20.72% 11.27% 8.61% - ---------------------------------------------------------------------------- R5 4/01/05 21.11% 11.43% 8.69% - ---------------------------------------------------------------------------- 529A 7/31/02 20.49% 11.03% 8.49% - ---------------------------------------------------------------------------- 529B 7/31/02 19.78% 10.32% 8.14% - ---------------------------------------------------------------------------- 529C 7/31/02 19.76% 10.29% 8.13% - ---------------------------------------------------------------------------- AVERAGE ANNUAL Comparative benchmark - ---------------------------------------------------------------------------- Russell 2000 Growth Index (f) 16.36% 16.27% 4.15% - ---------------------------------------------------------------------------- AVERAGE ANNUAL WITH SALES CHARGE Share class - ---------------------------------------------------------------------------- A 13.81% 9.99% 7.98% With Initial Sales Charge (5.75%) - ---------------------------------------------------------------------------- B 16.00% 10.33% 7.94% With CDSC (Declining over six years from 4% to 0%) (x) - ---------------------------------------------------------------------------- C 18.98% 10.58% 7.95% With CDSC (1% for 12 months) (x) - ---------------------------------------------------------------------------- 529A 13.56% 9.72% 7.85% With Initial Sales Charge (5.75%) - ---------------------------------------------------------------------------- 529B 15.78% 10.05% 8.14% With CDSC (Declining over six years from 4% to 0%) (x) - ---------------------------------------------------------------------------- 529C 18.76% 10.29% 8.13% With CDSC (1% for 12 months) (x) - ---------------------------------------------------------------------------- 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. CDSC - Contingent Deferred Sales Charge. (f) Source: FactSet Research Systems Inc. (x) Assuming redemption at the end of the applicable period. INDEX DEFINITION Russell 2000 Growth Index - 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 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, 2007 through August 31, 2007 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 (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, 2007 through August 31, 2007. ACTUAL EXPENSES The first line for each share class in the following table 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 following table 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). 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(p) Share Expense Account Value Account Value 3/01/07- Class Ratio 3/01/07 8/31/07 8/31/07 - -------------------------------------------------------------------------------- Actual 1.47% $1,000.00 $1,006.40 $7.43 A ----------------------------------------------------------------------- Hypothetical (h) 1.47% $1,000.00 $1,017.80 $7.48 - -------------------------------------------------------------------------------- Actual 2.11% $1,000.00 $1,003.60 $10.66 B ----------------------------------------------------------------------- Hypothetical (h) 2.11% $1,000.00 $1,014.57 $10.71 - -------------------------------------------------------------------------------- Actual 2.12% $1,000.00 $1,003.10 $10.70 C ----------------------------------------------------------------------- Hypothetical (h) 2.12% $1,000.00 $1,014.52 $10.76 - -------------------------------------------------------------------------------- Actual 1.12% $1,000.00 $1,008.10 $5.67 I ----------------------------------------------------------------------- Hypothetical (h) 1.12% $1,000.00 $1,019.56 $5.70 - -------------------------------------------------------------------------------- Actual 1.61% $1,000.00 $1,005.90 $8.14 R ----------------------------------------------------------------------- Hypothetical (h) 1.61% $1,000.00 $1,017.09 $8.19 - -------------------------------------------------------------------------------- Actual 2.22% $1,000.00 $1,002.60 $11.21 R1 ----------------------------------------------------------------------- Hypothetical (h) 2.22% $1,000.00 $1,014.01 $11.27 - -------------------------------------------------------------------------------- Actual 1.88% $1,000.00 $1,004.60 $9.50 R2 ----------------------------------------------------------------------- Hypothetical (h) 1.88% $1,000.00 $1,015.73 $9.55 - -------------------------------------------------------------------------------- Actual 1.77% $1,000.00 $1,005.00 $8.95 R3 ----------------------------------------------------------------------- Hypothetical (h) 1.77% $1,000.00 $1,016.28 $9.00 - -------------------------------------------------------------------------------- Actual 1.53% $1,000.00 $1,005.90 $7.74 R4 ----------------------------------------------------------------------- Hypothetical (h) 1.53% $1,000.00 $1,017.49 $7.78 - -------------------------------------------------------------------------------- Actual 1.22% $1,000.00 $1,007.80 $6.17 R5 ----------------------------------------------------------------------- Hypothetical (h) 1.22% $1,000.00 $1,019.06 $6.21 - -------------------------------------------------------------------------------- Actual 1.72% $1,000.00 $1,005.00 $8.69 529A ----------------------------------------------------------------------- Hypothetical (h) 1.72% $1,000.00 $1,016.53 $8.74 - -------------------------------------------------------------------------------- Actual 2.37% $1,000.00 $1,002.10 $11.96 529B ----------------------------------------------------------------------- Hypothetical (h) 2.37% $1,000.00 $1,013.26 $12.03 - -------------------------------------------------------------------------------- Actual 2.37% $1,000.00 $1,002.10 $11.96 529C ----------------------------------------------------------------------- Hypothetical (h) 2.37% $1,000.00 $1,013.26 $12.03 - -------------------------------------------------------------------------------- (h) 5% class return per year before expenses. (p) Expenses paid is equal to each class' annualized expense ratio, as shown above, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year. Expenses paid do not include any applicable sales charges (loads). If these transaction costs had been included, your costs would have been higher. PORTFOLIO OF INVESTMENTS 8/31/07 The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Common Stocks - 99.8% - ------------------------------------------------------------------------------------------------------------------------------ ISSUER SHARES/PAR VALUE ($) - ------------------------------------------------------------------------------------------------------------------------------ Airlines - 0.5% - ------------------------------------------------------------------------------------------------------------------------------ Allegiant Travel Co. (a) 114,620 $ 3,323,980 - ------------------------------------------------------------------------------------------------------------------------------ Alcoholic Beverages - 0.3% - ------------------------------------------------------------------------------------------------------------------------------ Castle Brands, Inc. (a) 187,060 $ 916,594 Castle Brands, Inc. (a)(z) 277,200 1,283,436 --------------- $ 2,200,030 - ------------------------------------------------------------------------------------------------------------------------------ Apparel Manufacturers - 0.9% - ------------------------------------------------------------------------------------------------------------------------------ Quiksilver, Inc. (a)(l) 507,490 $ 6,795,291 - ------------------------------------------------------------------------------------------------------------------------------ Biotechnology - 1.8% - ------------------------------------------------------------------------------------------------------------------------------ Millipore Corp. (a)(l) 189,870 $ 13,230,142 - ------------------------------------------------------------------------------------------------------------------------------ Brokerage & Asset Managers - 0.6% - ------------------------------------------------------------------------------------------------------------------------------ HFF, Inc., "A" (a)(l) 368,340 $ 4,302,211 - ------------------------------------------------------------------------------------------------------------------------------ Business Services - 6.2% - ------------------------------------------------------------------------------------------------------------------------------ Bright Horizons Family Solutions, Inc. (a)(l) 136,813 $ 5,427,372 Corporate Executive Board Co. (l) 347,750 23,657,432 CoStar Group, Inc. (a)(l) 118,540 6,523,256 iGate Corp. (a)(l) 492,118 4,079,658 Syntel, Inc. (l) 147,300 5,092,161 --------------- $ 44,779,879 - ------------------------------------------------------------------------------------------------------------------------------ Chemicals - 0.7% - ------------------------------------------------------------------------------------------------------------------------------ Nalco Holding Co. 209,390 $ 5,234,750 - ------------------------------------------------------------------------------------------------------------------------------ Computer Software - 3.8% - ------------------------------------------------------------------------------------------------------------------------------ ACI Worldwide, Inc. (a)(l) 471,015 $ 12,236,970 CommVault Systems, Inc. (a)(l) 362,700 6,909,435 Guidance Software, Inc. (a) 269,715 3,193,426 NAVTEQ Corp. (a) 83,230 5,243,490 --------------- $ 27,583,321 - ------------------------------------------------------------------------------------------------------------------------------ Computer Software - Systems - 0.3% - ------------------------------------------------------------------------------------------------------------------------------ PROS Holdings, Inc. (a) 172,970 $ 2,309,150 - ------------------------------------------------------------------------------------------------------------------------------ Construction - 2.1% - ------------------------------------------------------------------------------------------------------------------------------ Dayton Superior Corp. (a)(l) 351,690 $ 2,613,057 M.D.C. Holdings, Inc. (l) 282,130 12,551,964 --------------- $ 15,165,021 - ------------------------------------------------------------------------------------------------------------------------------ Consumer Goods & Services - 4.8% - ------------------------------------------------------------------------------------------------------------------------------ Central Garden & Pet Co., "A" (a)(l) 1,207,840 $ 15,218,784 New Oriental Education & Technology Group, Inc., ADR (a) 175,740 9,305,433 Physicians Formula Holdings, Inc. (a) 425,750 4,291,560 Strayer Education, Inc. (l) 39,360 6,281,069 --------------- $ 35,096,846 - ------------------------------------------------------------------------------------------------------------------------------ Electronics - 7.7% - ------------------------------------------------------------------------------------------------------------------------------ ARM Holdings PLC 4,442,680 $ 13,191,626 ATMI, Inc. (a)(l) 475,900 14,353,144 Hittite Microwave Corp. (a)(l) 322,760 13,675,341 Intersil Corp., "A" 181,550 6,049,246 MathStar, Inc. (a)(l) 469,700 549,549 PLX Technology, Inc. (a)(l) 296,560 3,208,779 Volterra Semiconductor Corp. (a)(l) 456,920 4,962,151 --------------- $ 55,989,836 - ------------------------------------------------------------------------------------------------------------------------------ Energy - Independent - 2.5% - ------------------------------------------------------------------------------------------------------------------------------ EXCO Resources, Inc. (a)(l) 405,980 $ 6,820,464 Goodrich Petroleum Corp. (a)(l) 241,940 7,163,843 Kodiak Oil & Gas Corp. (a)(l) 1,096,310 3,946,716 --------------- $ 17,931,023 - ------------------------------------------------------------------------------------------------------------------------------ Engineering - Construction - 3.3% - ------------------------------------------------------------------------------------------------------------------------------ North American Energy Partners, Inc. (a) 777,910 $ 13,426,727 Quanta Services, Inc. (a)(l) 366,659 10,365,450 --------------- $ 23,792,177 - ------------------------------------------------------------------------------------------------------------------------------ Food & Beverages - 0.7% - ------------------------------------------------------------------------------------------------------------------------------ Diamond Foods, Inc. (l) 318,189 $ 5,313,756 - ------------------------------------------------------------------------------------------------------------------------------ Food & Drug Stores - 0.4% - ------------------------------------------------------------------------------------------------------------------------------ Susser Holdings Corp. (a) 186,240 $ 3,123,245 - ------------------------------------------------------------------------------------------------------------------------------ Forest & Paper Products - 1.0% - ------------------------------------------------------------------------------------------------------------------------------ Universal Forest Products, Inc. (l) 193,650 $ 7,221,209 - ------------------------------------------------------------------------------------------------------------------------------ Gaming & Lodging - 1.4% - ------------------------------------------------------------------------------------------------------------------------------ WMS Industries, Inc. (a)(l) 337,110 $ 9,924,518 - ------------------------------------------------------------------------------------------------------------------------------ General Merchandise - 2.6% - ------------------------------------------------------------------------------------------------------------------------------ 99 Cents Only Stores (a)(l) 584,060 $ 7,213,141 Stage Stores, Inc. 666,005 11,541,867 --------------- $ 18,755,008 - ------------------------------------------------------------------------------------------------------------------------------ Internet - 1.2% - ------------------------------------------------------------------------------------------------------------------------------ Limelight Networks, Inc. (a) 227,540 $ 1,872,654 TechTarget, Inc. (a) 537,090 6,992,912 --------------- $ 8,865,566 - ------------------------------------------------------------------------------------------------------------------------------ Leisure & Toys - 2.2% - ------------------------------------------------------------------------------------------------------------------------------ Take-Two Interactive Software, Inc. (a)(l) 543,900 $ 8,691,522 THQ, Inc. (a)(l) 252,394 7,266,423 --------------- $ 15,957,945 - ------------------------------------------------------------------------------------------------------------------------------ Machinery & Tools - 2.6% - ------------------------------------------------------------------------------------------------------------------------------ Polypore International, Inc. (a) 906,990 $ 12,924,608 Ritchie Bros. Auctioneers, Inc. 92,000 5,944,120 --------------- $ 18,868,728 - ------------------------------------------------------------------------------------------------------------------------------ Medical & Health Technology & Services - 5.4% - ------------------------------------------------------------------------------------------------------------------------------ Healthcare Services Group, Inc. (l) 419,700 $ 8,989,974 IDEXX Laboratories, Inc. (a)(l) 118,735 13,268,636 MWI Veterinary Supply, Inc. (a)(l) 434,650 16,503,660 --------------- $ 38,762,270 - ------------------------------------------------------------------------------------------------------------------------------ Medical Equipment - 14.2% - ------------------------------------------------------------------------------------------------------------------------------ ABIOMED, Inc. (a)(l) 431,870 $ 5,316,320 Advanced Medical Optics, Inc. (a)(l) 447,170 12,851,666 AngioDynamics, Inc. (a) 379,953 7,393,885 Aspect Medical Systems, Inc. (a)(l) 674,963 8,491,034 AtriCure, Inc. (a)(l) 245,230 2,577,367 Conceptus, Inc. (a)(l) 623,330 10,908,275 Cooper Cos., Inc. (l) 138,180 6,737,657 Cyberonics, Inc. (a)(l) 335,645 5,064,883 Dexcom, Inc. (a)(l) 325,740 2,996,808 Haemonetics Corp. (a) 100,340 4,980,878 Insulet Corp. (a)(l) 216,810 3,820,192 Mindray Medical International Ltd., ADR 117,110 4,156,234 NxStage Medical, Inc. (a)(l) 453,010 5,626,384 ResMed, Inc. (a)(l) 253,680 10,314,629 Thoratec Corp. (a)(l) 580,640 12,001,829 --------------- $ 103,238,041 - ------------------------------------------------------------------------------------------------------------------------------ Network & Telecom - 3.7% - ------------------------------------------------------------------------------------------------------------------------------ NICE Systems Ltd., ADR (a) 541,438 $ 19,156,076 Polycom, Inc. (a) 176,720 5,356,383 Sonus Networks, Inc. (a)(l) 399,520 2,309,226 --------------- $ 26,821,685 - ------------------------------------------------------------------------------------------------------------------------------ Oil Services - 2.3% - ------------------------------------------------------------------------------------------------------------------------------ Dresser-Rand Group, Inc. (a) 122,480 $ 4,515,838 Exterran Holdings, Inc. (a)(l) 123,290 9,554,975 Natural Gas Services Group, Inc. (a) 155,450 2,628,660 --------------- $ 16,699,473 - ------------------------------------------------------------------------------------------------------------------------------ Other Banks & Diversified Financials - 3.5% - ------------------------------------------------------------------------------------------------------------------------------ Commerce Bancorp, Inc. (l) 288,120 $ 10,582,648 New York Community Bancorp, Inc. (l) 392,500 6,943,325 Signature Bank (a)(l) 225,910 7,807,450 --------------- $ 25,333,423 - ------------------------------------------------------------------------------------------------------------------------------ Personal Computers & Peripherals - 2.4% - ------------------------------------------------------------------------------------------------------------------------------ Mellanox Technologies Ltd. (a)(l) 321,830 $ 5,181,463 Nuance Communications, Inc. (a)(l) 655,819 12,329,397 --------------- $ 17,510,860 - ------------------------------------------------------------------------------------------------------------------------------ Pharmaceuticals - 3.0% - ------------------------------------------------------------------------------------------------------------------------------ Cadence Pharmaceuticals, Inc. (a)(l) 183,370 $ 2,633,193 Medicis Pharmaceutical Corp., "A" (l) 356,570 10,889,648 Synta Pharmaceuticals Corp. (a)(l) 146,850 878,163 Wuxi Pharmatech Cayman, Inc., ADR (a) 283,240 7,435,050 --------------- $ 21,836,054 - ------------------------------------------------------------------------------------------------------------------------------ Restaurants - 6.6% - ------------------------------------------------------------------------------------------------------------------------------ Einstein Noah Restaurant Group, Inc. (a) 231,250 $ 3,845,687 Panera Bread Co. (a)(l) 407,830 17,838,484 Peet's Coffee & Tea, Inc. (a)(l) 156,040 3,941,570 Red Robin Gourmet Burgers, Inc. (a)(l) 352,630 13,565,676 Texas Roadhouse, Inc., "A" (a)(l) 699,340 8,958,545 --------------- $ 48,149,962 - ------------------------------------------------------------------------------------------------------------------------------ Specialty Chemicals - 0.3% - ------------------------------------------------------------------------------------------------------------------------------ Metabolix, Inc. (a)(l) 91,310 $ 2,031,647 - ------------------------------------------------------------------------------------------------------------------------------ Specialty Stores - 7.2% - ------------------------------------------------------------------------------------------------------------------------------ A.C. Moore Arts & Crafts, Inc. (a)(l) 314,140 $ 5,871,277 CarMax, Inc. (a) 279,640 6,336,642 Citi Trends, Inc. (a)(l) 624,040 13,566,630 Dick's Sporting Goods, Inc. (a)(l) 124,540 8,082,646 Lululemon Athletica, Inc. (a) 134,740 4,590,592 Monro Muffler Brake, Inc. 128,230 4,825,295 Urban Outfitters, Inc. (a)(l) 387,830 8,881,307 --------------- $ 52,154,389 - ------------------------------------------------------------------------------------------------------------------------------ Telephone Services - 2.6% - ------------------------------------------------------------------------------------------------------------------------------ Global Crossing Ltd. (a)(l) 411,430 $ 7,833,627 Level 3 Communications, Inc. (a)(l) 2,055,930 10,752,514 --------------- $ 18,586,141 - ------------------------------------------------------------------------------------------------------------------------------ Trucking - 1.0% - ------------------------------------------------------------------------------------------------------------------------------ Landstar System, Inc. 160,290 $ 6,894,073 - ------------------------------------------------------------------------------------------------------------------------------ TOTAL COMMON STOCKS (IDENTIFIED COST, $712,758,416) $ 723,781,650 - ------------------------------------------------------------------------------------------------------------------------------ Warrants - 0.0% - ------------------------------------------------------------------------------------------------------------------------------ STRIKE FIRST ISSUER PRICE EXERCISE - ------------------------------------------------------------------------------------------------------------------------------ Alcoholic Beverages - 0.0% - ------------------------------------------------------------------------------------------------------------------------------ Castle Brands, Inc. (Identified Cost, $155,725) (a)(z) $6.57 5/08/07 110,880 $ 41,037 - ------------------------------------------------------------------------------------------------------------------------------ Collateral for Securities Loaned - 19.8% - ------------------------------------------------------------------------------------------------------------------------------ Navigator Securities Lending Prime Portfolio, at Cost and Net Asset Value 143,463,055 $ 143,463,055 - ------------------------------------------------------------------------------------------------------------------------------ TOTAL INVESTMENTS (IDENTIFIED COST, $856,377,196) (k) $ 867,285,742 - ------------------------------------------------------------------------------------------------------------------------------ Other Assets, Less Liabilities - (19.6)% (141,978,938) - ------------------------------------------------------------------------------------------------------------------------------ NET ASSETS - 100.0% $ 725,306,804 - ------------------------------------------------------------------------------------------------------------------------------ (a) Non-income producing security. (k) As of August 31, 2007, the fund had two securities that were fair valued, aggregating $1,324,473 and 0.15% of market value, in accordance with the policies adopted by the Board of Trustees. (l) All or a portion of this security is on loan. (z) Restricted securities are not registered under the Securities Act of 1933 and are subject to legal restrictions on resale. These securities generally may be resold in transactions exempt from registration or to the public if the securities are subsequently registered. Disposal of these securities may involve time-consuming negotiations and prompt sale at an acceptable price may be difficult. The fund holds the following restricted securities: CURRENT ACQUISITION ACQUISITION MARKET TOTAL % OF RESTRICTED SECURITIES DATE COST VALUE NET ASSETS - -------------------------------------------------------------------------------------------------------------------- Castle Brands, Inc. (warrants) 4/18/07 $ 155,725 $ 41,037 Castle Brands, Inc. 4/19/07 1,499,159 1,283,436 - -------------------------------------------------------------------------------------------------------------------- Total Restricted Securities $1,324,473 0.2% ==================== The following abbreviations are used in this report and are defined: ADR American Depository Receipt SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENT OF ASSETS AND LIABILITIES At 8/31/07 This statement represents your fund's balance sheet, which details the assets and liabilities comprising the total value of the fund. ASSETS - ------------------------------------------------------------------------------------------------------- Investments, at value, including $139,689,589 of securities on loan (identified cost, $856,377,196) $867,285,742 Receivable for investments sold 7,473,403 Receivable for fund shares sold 408,289 Interest and dividends receivable 155,250 Other assets 3,612 - ------------------------------------------------------------------------------------------------------- Total assets $875,326,296 - ------------------------------------------------------------------------------------------------------- LIABILITIES - ------------------------------------------------------------------------------------------------------- Payable to custodian $965,580 Payable for investments purchased 3,525,353 Payable for fund shares reacquired 1,202,980 Collateral for securities loaned, at value 143,463,055 Payable to affiliates Management fee 31,536 Shareholder servicing costs 604,883 Distribution and service fees 15,560 Administrative services fee 664 Program manager fees 31 Retirement plan administration and services fees 545 Payable for independent trustees' compensation 11,115 Accrued expenses and other liabilities 198,190 - ------------------------------------------------------------------------------------------------------- Total liabilities $150,019,492 - ------------------------------------------------------------------------------------------------------- Net assets $725,306,804 - ------------------------------------------------------------------------------------------------------- NET ASSETS CONSIST OF - ------------------------------------------------------------------------------------------------------- Paid-in capital $729,681,918 Unrealized appreciation (depreciation) on investments and translation of assets and liabilities in foreign currencies 10,908,627 Accumulated net realized gain (loss) on investments and foreign currency transactions (15,273,035) Accumulated net investment loss (10,706) - ------------------------------------------------------------------------------------------------------- Net assets $725,306,804 - ------------------------------------------------------------------------------------------------------- Shares of beneficial interest outstanding 35,599,974 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class A shares - ------------------------------------------------------------------------------------------------------- Net assets $395,992,564 Shares outstanding 19,331,759 - ------------------------------------------------------------------------------------------------------- Net asset value per share $20.48 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25Xnet asset value per share) $21.73 - ------------------------------------------------------------------------------------------------------- Class B shares - ------------------------------------------------------------------------------------------------------- Net assets $91,921,731 Shares outstanding 4,729,405 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $19.44 - ------------------------------------------------------------------------------------------------------- Class C shares - ------------------------------------------------------------------------------------------------------- Net assets $42,296,086 Shares outstanding 2,173,133 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $19.46 - ------------------------------------------------------------------------------------------------------- Class I shares - ------------------------------------------------------------------------------------------------------- Net assets $100,244,934 Shares outstanding 4,731,126 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $21.19 - ------------------------------------------------------------------------------------------------------- Class R shares - ------------------------------------------------------------------------------------------------------- Net assets $7,798,715 Shares outstanding 383,284 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $20.35 - ------------------------------------------------------------------------------------------------------- Class R1 shares - ------------------------------------------------------------------------------------------------------- Net assets $2,609,140 Shares outstanding 134,667 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $19.37 - ------------------------------------------------------------------------------------------------------- Class R2 shares - ------------------------------------------------------------------------------------------------------- Net assets $1,590,059 Shares outstanding 81,430 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $19.53 - ------------------------------------------------------------------------------------------------------- Class R3 shares - ------------------------------------------------------------------------------------------------------- Net assets $8,711,072 Shares outstanding 430,966 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $20.21 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class R4 shares - ------------------------------------------------------------------------------------------------------- Net assets $4,653,591 Shares outstanding 227,530 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $20.45 - ------------------------------------------------------------------------------------------------------- Class R5 shares - ------------------------------------------------------------------------------------------------------- Net assets $67,211,616 Shares outstanding 3,262,632 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $20.60 - ------------------------------------------------------------------------------------------------------- Class 529A shares - ------------------------------------------------------------------------------------------------------- Net assets $1,715,335 Shares outstanding 84,777 - ------------------------------------------------------------------------------------------------------- Net asset value per share $20.23 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25Xnet asset value per share) $21.46 - ------------------------------------------------------------------------------------------------------- Class 529B shares - ------------------------------------------------------------------------------------------------------- Net assets $238,713 Shares outstanding 12,435 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $19.20 - ------------------------------------------------------------------------------------------------------- Class 529C shares - ------------------------------------------------------------------------------------------------------- Net assets $323,248 Shares outstanding 16,830 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $19.21 - ------------------------------------------------------------------------------------------------------- On sales of $50,000 or more, the offering prices 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 Year ended 8/31/07 This statement describes how much your fund earned in investment income and accrued in expenses. It also describes any gains and/or losses generated by fund operations. NET INVESTMENT LOSS - ------------------------------------------------------------------------------------------------------ Income Dividends $2,584,237 Income on securities loaned 679,606 Interest 146,135 Foreign taxes withheld (17,027) - ------------------------------------------------------------------------------------------------------ Total investment income $3,392,951 - ------------------------------------------------------------------------------------------------------ Expenses Management fee $7,184,455 Distribution and service fees 3,297,256 Program manager fees 6,064 Shareholder servicing costs 1,759,027 Administrative services fee 147,042 Retirement plan administration and services fees 94,611 Independent trustees' compensation 21,281 Custodian fee 279,384 Shareholder communications 86,132 Auditing fees 45,072 Legal fees 10,658 Miscellaneous 190,119 - ------------------------------------------------------------------------------------------------------ Total expenses $13,121,101 - ------------------------------------------------------------------------------------------------------ Fees paid indirectly (14,658) Reduction of expenses by investment adviser (806,647) - ------------------------------------------------------------------------------------------------------ Net expenses $12,299,796 - ------------------------------------------------------------------------------------------------------ Net investment loss $(8,906,845) - ------------------------------------------------------------------------------------------------------ Statement of Operations - continued REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS - ------------------------------------------------------------------------------------------------------ Realized gain (loss) (identified cost basis) Investment transactions $159,984,407 Foreign currency transactions (4,730) - ------------------------------------------------------------------------------------------------------ Net realized gain (loss) on investments and foreign currency transactions $159,979,677 - ------------------------------------------------------------------------------------------------------ Change in unrealized appreciation (depreciation) Investments $3,449,235 Translation of assets and liabilities in foreign currencies 83 - ------------------------------------------------------------------------------------------------------ Net unrealized gain (loss) on investments and foreign currency translation $3,449,318 - ------------------------------------------------------------------------------------------------------ Net realized and unrealized gain (loss) on investments and foreign currency $163,428,995 - ------------------------------------------------------------------------------------------------------ Change in net assets from operations $154,522,150 - ------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENTS OF CHANGES IN NET ASSETS These statements describe the increases and/or decreases in net assets resulting from operations, any distributions, and any shareholder transactions. YEARS ENDED 8/31 --------------------------------------- 2007 2006 CHANGE IN NET ASSETS FROM OPERATIONS - -------------------------------------------------------------------------------------------------------- Net investment loss $(8,906,845) $(11,224,998) Net realized gain (loss) on investments and foreign currency transactions 159,979,677 95,718,425 Net unrealized gain (loss) on investments and foreign currency translation 3,449,318 (76,087,256) - -------------------------------------------------------------------------------------------------------- Change in net assets from operations $154,522,150 $8,406,171 - -------------------------------------------------------------------------------------------------------- Change in net assets from fund share transactions $(219,456,690) $(212,974,517) - -------------------------------------------------------------------------------------------------------- Redemption fees $1,647 $17,161 - -------------------------------------------------------------------------------------------------------- Total change in net assets $(64,932,893) $(204,551,185) - -------------------------------------------------------------------------------------------------------- NET ASSETS - -------------------------------------------------------------------------------------------------------- At beginning of period 790,239,697 994,790,882 At end of period (including accumulated net investment loss of $10,706 and $11,733, respectively) $725,306,804 $790,239,697 - -------------------------------------------------------------------------------------------------------- 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 life of a particular share class, if shorter). 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 share class (assuming reinvestment of all distributions) held for the entire period. CLASS A YEARS ENDED 8/31 ---------------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $16.96 $16.85 $13.53 $14.57 $11.99 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ---------------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.16) $(0.20) $(0.16) $(0.18) $(0.13) Net realized and unrealized gain (loss) on investments and foreign currency 3.68 0.31 3.48 (0.86) 2.71 - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.52 $0.11 $3.32 $(1.04) $2.58 - ---------------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital (d) $0.00(w) $0.00(w) $0.00(w) $0.00(w) $-- - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $20.48 $16.96 $16.85 $13.53 $14.57 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 20.75 0.65 24.54 (7.14)(b) 21.52 - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.57 1.57 1.57 1.51 1.58 Expenses after expense reductions (f) 1.47 1.47 1.47 1.51 N/A Net investment loss (1.04) (1.12) (1.05) (1.20) (1.11) Portfolio turnover 94 99 112 122 104 Net assets at end of period (000 Omitted) $395,993 $409,471 $603,396 $824,708 $1,004,473 - ---------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS B YEARS ENDED 8/31 ------------------------------------------------------------------------------ 2007 2006 2005 2004 2003 Net asset value, beginning of period $16.20 $16.20 $13.09 $14.19 $11.75 - ------------------------------------------------------------------------------------------------------------------------------ INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------------ Net investment loss (d) $(0.25) $(0.30) $(0.25) $(0.27) $(0.21) Net realized and unrealized gain (loss) on investments and foreign currency 3.49 0.30 3.36 (0.83) 2.65 - ------------------------------------------------------------------------------------------------------------------------------ Total from investment operations $3.24 $0.00 $3.11 $(1.10) $2.44 - ------------------------------------------------------------------------------------------------------------------------------ Redemption fees added to paid-in capital (d) $0.00(w) $0.00(w) $0.00(w) $0.00(w) $-- - ------------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $19.44 $16.20 $16.20 $13.09 $14.19 - ------------------------------------------------------------------------------------------------------------------------------ Total return (%) (r)(s)(t) 20.00 0.00 23.76 (7.75)(b) 20.77 - ------------------------------------------------------------------------------------------------------------------------------ RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------------ Expenses before expense reductions (f) 2.22 2.22 2.22 2.15 2.23 Expenses after expense reductions (f) 2.12 2.12 2.12 2.15 N/A Net investment loss (1.69) (1.77) (1.70) (1.84) (1.76) Portfolio turnover 94 99 112 122 104 Net assets at end of period (000 Omitted) $91,922 $132,519 $203,722 $231,653 $271,580 - ------------------------------------------------------------------------------------------------------------------------------ CLASS C YEARS ENDED 8/31 ------------------------------------------------------------------------------ 2007 2006 2005 2004 2003 Net asset value, beginning of period $16.22 $16.22 $13.10 $14.21 $11.77 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.25) $(0.30) $(0.25) $(0.27) $(0.21) Net realized and unrealized gain (loss) on investments and foreign currency 3.49 0.30 3.37 (0.84) 2.65 - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.24 $0.00 $3.12 $(1.11) $2.44 - ----------------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital (d) $0.00(w) $0.00(w) $0.00(w) $0.00(w) $-- - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $19.46 $16.22 $16.22 $13.10 $14.21 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 19.98 0.00 23.82 (7.81)(b) 20.73 - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 2.22 2.22 2.22 2.15 2.23 Expenses after expense reductions (f) 2.12 2.12 2.12 2.15 N/A Net investment loss (1.69) (1.77) (1.70) (1.84) (1.76) Portfolio turnover 94 99 112 122 104 Net assets at end of period (000 Omitted) $42,296 $47,293 $58,454 $67,102 $84,391 - ----------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS I YEARS ENDED 8/31 --------------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $17.48 $17.31 $13.85 $14.86 $12.19 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.11) $(0.14) $(0.11) $(0.13) $(0.09) Net realized and unrealized gain (loss) on investments and foreign currency 3.82 0.31 3.57 (0.88) 2.76 - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.71 $0.17 $3.46 $(1.01) $2.67 - ----------------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital (d) $0.00(w) $0.00(w) $0.00(w) $0.00(w) $-- - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $21.19 $17.48 $17.31 $13.85 $14.86 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 21.22 0.98 24.98 (6.80)(b) 21.90 - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.22 1.22 1.23 1.16 1.23 Expenses after expense reductions (f) 1.12 1.12 1.13 1.16 N/A Net investment loss (0.69) (0.77) (0.70) (0.84) (0.75) Portfolio turnover 94 99 112 122 104 Net assets at end of period (000 Omitted) $100,245 $119,053 $107,842 $103,031 $90,872 - ----------------------------------------------------------------------------------------------------------------------------- CLASS R YEARS ENDED 8/31 ---------------------------------------------------------------------------- 2007 2006 2005 2004 2003(i) Net asset value, beginning of period $16.87 $16.79 $13.50 $14.57 $11.38 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.18) $(0.22) $(0.18) $(0.20) $(0.11) Net realized and unrealized gain (loss) on investments and foreign currency 3.66 0.30 3.47 (0.87) 3.30 - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.48 $0.08 $3.29 $(1.07) $3.19 - ----------------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital (d) $0.00(w) $0.00(w) $0.00(w) $0.00(w) $-- - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $20.35 $16.87 $16.79 $13.50 $14.57 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 20.63 0.48 24.37 (7.34)(b) 28.03(n) - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.72 1.72 1.73 1.66 1.78(a) Expenses after expense reductions (f) 1.62 1.62 1.63 1.66 N/A Net investment loss (1.19) (1.27) (1.17) (1.32) (1.26)(a) Portfolio turnover 94 99 112 122 104 Net assets at end of period (000 Omitted) $7,799 $11,691 $16,926 $7,262 $1,824 - ----------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R1 YEARS ENDED 8/31 ----------------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $16.16 $16.18 $14.50 - ------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.26) $(0.31) $(0.10) Net realized and unrealized gain (loss) on investments and foreign currency 3.47 0.29 1.78 - ------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.21 $(0.02) $1.68 - ------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital (d) $0.00(w) $0.00(w) $0.00(w) - ------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $19.37 $16.16 $16.18 - ------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 19.86 (0.12) 11.59(n) - ------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 2.37 2.43 2.43(a) Expenses after expense reductions (f) 2.22 2.22 2.33(a) Net investment loss (1.79) (1.86) (1.69)(a) Portfolio turnover 94 99 112 Net assets at end of period (000 Omitted) $2,609 $857 $206 - ------------------------------------------------------------------------------------------------------------------- CLASS R2 YEARS ENDED 8/31 ------------------------------------------------ 2007 2006 2005(i) Net asset value, beginning of period $16.23 $16.19 $14.50 - ------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.21) $(0.25) $(0.08) Net realized and unrealized gain (loss) on investments and foreign currency 3.51 0.29 1.77 - ------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.30 $0.04 $1.69 - ------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital (d) $0.00(w) $0.00(w) $0.00(w) - ------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $19.53 $16.23 $16.19 - ------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 20.33 0.25 11.66(n) - ------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 2.03 2.12 2.12(a) Expenses after expense reductions (f) 1.87 1.88 2.02(a) Net investment loss (1.45) (1.52) (1.02)(a) Portfolio turnover 94 99 112 Net assets at end of period (000 Omitted) $1,590 $362 $135 - ------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R3 YEARS ENDED 8/31 ----------------------------------------------------------------- 2007 2006 2005 2004(i) Net asset value, beginning of period $16.78 $16.72 $13.47 $15.35 - ------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.20) $(0.24) $(0.22) $(0.11) Net realized and unrealized gain (loss) on investments and foreign currency 3.63 0.30 3.47 (1.77) - ------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.43 $0.06 $3.25 $(1.88) - ------------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital (d) $0.00(w) $0.00(w) $0.00(w) $0.00(w) - ------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $20.21 $16.78 $16.72 $13.47 - ------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 20.44 0.36 24.13 (12.25)(b)(n) - ------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.92 1.96 1.98 1.73(a) Expenses after expense reductions (f) 1.77 1.77 1.88 1.73(a) Net investment loss (1.34) (1.41) (1.42) (1.23)(a) Portfolio turnover 94 99 112 122 Net assets at end of period (000 Omitted) $8,711 $4,417 $1,573 $454 - ------------------------------------------------------------------------------------------------------------------------- CLASS R4 YEARS ENDED 8/31 ----------------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $16.94 $16.84 $15.04 - ------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.17) $(0.21) $(0.04) Net realized and unrealized gain (loss) on investments and foreign currency 3.68 0.31 1.84 - ------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.51 $0.10 $1.80 - ------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital (d) $0.00(w) $0.00(w) $0.00(w) - ------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $20.45 $16.94 $16.84 - ------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 20.72 0.59 11.97(n) - ------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.62 1.62 1.63(a) Expenses after expense reductions (f) 1.52 1.52 1.53(a) Net investment loss (1.09) (1.15) (0.66)(a) Portfolio turnover 94 99 112 Net assets at end of period (000 Omitted) $4,654 $2,404 $334 - ------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R5 YEARS ENDED 8/31 ----------------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $17.01 $16.86 $15.04 - ------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.12) $(0.15) $(0.04) Net realized and unrealized gain (loss) on investments and foreign currency 3.71 0.30 1.86 - ------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.59 $0.15 $1.82 - ------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital (d) $0.00(w) $0.00(w) $0.00(w) - ------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $20.60 $17.01 $16.86 - ------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 21.11 0.89 12.10(n) - ------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.32 1.32 1.32(a) Expenses after expense reductions (f) 1.22 1.22 1.22(a) Net investment loss (0.79) (0.84) (0.67)(a) Portfolio turnover 94 99 112 Net assets at end of period (000 Omitted) $67,212 $59,999 $56 - ------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529A YEARS ENDED 8/31 -------------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $16.79 $16.73 $13.47 $14.53 $11.99 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.21) $(0.24) $(0.20) $(0.21) $(0.16) Net realized and unrealized gain (loss) on investments and foreign currency 3.65 0.30 3.46 (0.85) 2.70 - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.44 $0.06 $3.26 $(1.06) $2.54 - ----------------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital (d) $0.00(w) $0.00(w) $0.00(w) $0.00(w) $-- - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $20.23 $16.79 $16.73 $13.47 $14.53 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 20.49 0.36 24.20 (7.30)(b) 21.18 - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.82 1.83 1.83 1.75 1.84 Expenses after expense reductions (f) 1.72 1.72 1.73 1.75 N/A Net investment loss (1.29) (1.37) (1.27) (1.43) (1.35) Portfolio turnover 94 99 112 122 104 Net assets at end of period (000 Omitted) $1,715 $1,630 $1,637 $390 $180 - ----------------------------------------------------------------------------------------------------------------------------- CLASS 529B YEARS ENDED 8/31 -------------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $16.03 $16.07 $13.02 $14.15 $11.75 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.28) $(0.33) $(0.28) $(0.30) $(0.24) Net realized and unrealized gain (loss) on investments and foreign currency 3.45 0.29 3.33 (0.83) 2.64 - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.17 $(0.04) $3.05 $(1.13) $2.40 - ----------------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital (d) $0.00(w) $0.00(w) $0.00(w) $0.00(w) $-- - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $19.20 $16.03 $16.07 $13.02 $14.15 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 19.78 (0.25) 23.43 (7.99)(b) 20.43 - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 2.47 2.47 2.47 2.40 2.49 Expenses after expense reductions (f) 2.37 2.37 2.37 2.40 N/A Net investment loss (1.94) (2.02) (1.93) (2.07) (1.99) Portfolio turnover 94 99 112 122 104 Net assets at end of period (000 Omitted) $239 $211 $177 $135 $84 - ----------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529C YEARS ENDED 8/31 -------------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $16.04 $16.08 $13.03 $14.16 $11.77 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.28) $(0.34) $(0.28) $(0.31) $(0.24) Net realized and unrealized gain (loss) on investments and foreign currency 3.45 0.30 3.33 (0.82) 2.63 - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.17 $(0.04) $3.05 $(1.13) $2.39 - ----------------------------------------------------------------------------------------------------------------------------- Redemption fees added to paid-in capital (d) $0.00(w) $0.00(w) $0.00(w) $0.00(w) $-- - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $19.21 $16.04 $16.08 $13.03 $14.16 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 19.76 (0.25) 23.41 (7.98)(b) 20.31 - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 2.47 2.48 2.47 2.40 2.50 Expenses after expense reductions (f) 2.37 2.37 2.37 2.40 N/A Net investment loss (1.94) (2.02) (1.93) (2.08) (1.99) Portfolio turnover 94 99 112 122 104 Net assets at end of period (000 Omitted) $323 $332 $333 $240 $147 - ----------------------------------------------------------------------------------------------------------------------------- (a) Annualized. (b) 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. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (i) 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. (n) Not annualized. (r) Certain expenses have been reduced without which performance would have been lower. (s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. (t) Total returns do not include any applicable sales charges. (w) Per share amount was less than $0.01. SEE NOTES TO FINANCIAL STATEMENTS NOTES TO FINANCIAL STATEMENTS (1) BUSINESS AND ORGANIZATION MFS New Discovery Fund (the fund) is a 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 will generally focus on securities of small size companies which may be more volatile than those of larger companies. The fund can invest in foreign securities, including securities of emerging market issuers. 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. The markets of emerging markets countries are generally more volatile than the markets of developed countries with more mature economies. All of the risks of investing in foreign securities previously described are heightened when investing in emerging markets countries. INVESTMENT VALUATIONS - Equity securities, including restricted equity securities, are generally valued at the last sale or official closing price as reported by an independent pricing service on the market or exchange on which they are primarily traded. For securities for which there were no sales reported that day, equity securities are generally valued at the last quoted daily bid quotation as reported by an independent pricing service on the market or exchange on which they are primarily traded. For securities held short for which there were no sales reported for the day, the position is generally valued at the last quoted daily ask quotation as reported by an independent pricing service on the market or exchange on which such securities are primarily traded. Short-term instruments with a maturity at issuance of 60 days or less may be valued at amortized cost, which approximates market value. Open-end investment companies are generally valued at their net asset value per share. Securities and other assets generally valued on the basis of information from an independent pricing service may also be valued at a broker-dealer bid quotation. Values obtained from pricing services can utilize both dealer-supplied valuations and electronic data processing techniques, which take into account factors such as institutional-size trading in similar groups of securities, yield, quality, coupon rate, maturity, type of issue, trading characteristics, and other market data. The values of foreign securities and other assets and liabilities expressed in foreign currencies are converted to U.S. dollars using the mean of bid and asked prices for rates reported by an independent pricing service. The Board of Trustees has delegated primary responsibility for determining or causing to be determined the value of the fund's investments (including any fair valuation) to the adviser pursuant to valuation policies and procedures approved by the Board. If the adviser determines that reliable market quotations are not readily available, investments are valued at fair value as determined in good faith by the adviser in accordance with such procedures under the oversight of the Board of Trustees. Under the fund's valuation policies and procedures, market quotations are not considered to be readily available for many types of debt instruments and certain types of derivatives. These investments are generally valued at fair value based on information from independent pricing services. In addition, investments may be valued at fair value if the adviser determines that an investment's value has been materially affected by events occurring after the close of the exchange or market on which the investment is principally traded (such as foreign exchange or market) and prior to the determination of the fund's net asset value, or after the halting of trading of a specific security where trading does not resume prior to the close of the exchange or market on which the security is principally traded. Events that occur on a frequent basis after foreign markets close (such as developments in foreign markets and significant movements in the U.S. markets) and prior to the determination of the fund's net asset value may be deemed to have a material affect on the value of securities traded in foreign markets. Accordingly, the fund's foreign equity securities may often be valued at fair value. The adviser may rely on independent pricing services or other information (such as the correlation with price movements of similar securities in the same or other markets; the type, cost and investment characteristics of the security; the business and financial condition of the issuer; and trading and other market data) to assist in determining whether to fair value and at what value to fair value an investment. The value of an investment for purposes of calculating the fund's net asset value can differ depending on the source and method used to determine value. When fair valuation is used, the value of investments used to determine the fund's net asset value may differ from quoted or published prices for the same investments. In September 2006, FASB Statement No. 157, Fair Value Measurements (the "Statement") was issued, and is effective for fiscal years beginning after November 15, 2007 and for all interim periods within those fiscal years. This Statement provides a single definition of fair value, a hierarchy for measuring fair value and expanded disclosures about fair value measurements. Management is evaluating the application of the Statement to the fund, and believes the impact will be limited to expanded disclosures resulting from the adoption of this Statement in the fund's financial statements. 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 and other funds managed by 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. INDEMNIFICATIONS - Under the fund's organizational documents, its officers and trustees may be indemnified against certain liabilities and expenses arising out of the performance of their duties to the fund. Additionally, in the normal course of business, the fund enters into agreements with service providers that may contain indemnification clauses. The fund's maximum exposure under these agreements is unknown as this would involve future claims that may be made against the fund that have not yet occurred. SHORT TERM FEES - The fund charged 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. Effective December 1, 2006, the fund no longer charges a redemption fee. 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. Certain dividends from foreign securities will be recorded when the fund is informed of the dividend if such information is obtained subsequent to 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. Any proceeds received from litigation involving portfolio holdings are reflected in the Statement of Operations in realized gain/loss if the security has been disposed of by the fund or in unrealized gain/loss if the security is still held by the fund. Any other proceeds from litigation not related to portfolio holdings are reflected as other income in the Statement of Operations. 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. This amount, for the year ended August 31, 2007, is shown as a reduction of total expenses on the Statement of Operations. TAX MATTERS AND DISTRIBUTIONS - The fund intends to qualify as a regulated investment company, as defined under Subchapter M of the Internal Revenue Code, and to distribute all of its taxable income, including realized capital gains. Accordingly, no provision for federal income tax is required in the financial statements. Foreign taxes, if any, have been accrued by the fund in the accompanying financial statements. Distributions to shareholders are recorded on the ex-dividend date. Income and capital gain distributions are determined in accordance with income tax regulations, which may differ from U.S. generally accepted accounting principles. Certain capital accounts in the financial statements are periodically adjusted for permanent differences in order to reflect their tax character. These adjustments have no impact on net assets or net asset value per share. Temporary differences which arise from recognizing certain items of income, expense, gain or loss in different periods for financial statement and tax purposes will reverse at some time in the future. Distributions in excess of net investment income or net realized gains are temporary overdistributions for financial statement purposes resulting from differences in the recognition or classification of income or distributions for financial statement and tax purposes. Book/tax differences primarily relate to net operating losses, passive foreign investment companies, and wash sale loss deferrals. The fund declared no distributions for the years ended August 31, 2007 and August 31, 2006. The federal tax cost and the tax basis components of distributable earnings were as follows: AS OF 8/31/07 Cost of investments $857,481,336 ---------------------------------------------------------------- Gross appreciation $81,123,954 Gross depreciation (71,319,548) ---------------------------------------------------------------- Net unrealized appreciation (depreciation) $9,804,406 Capital loss carryforwards (14,168,895) Other temporary differences (10,625) As of August 31, 2007, the fund had capital loss carryforwards available to offset future realized gains. Such losses expire as follows: 08/31/11 $(14,168,895) In June 2006, FASB Interpretation No. 48, Accounting for Uncertainty in Income Taxes (the "Interpretation") was issued, and is effective for fiscal years beginning after December 15, 2006 and is to be applied to all open tax years as of the effective date. On December 22, 2006, the SEC delayed the implementation of the Interpretation for regulated investment companies for an additional six months. This Interpretation prescribes a minimum threshold for financial statement recognition of the benefit of a tax position taken or expected to be taken in a tax return, and requires certain expanded disclosures. Management has evaluated the application of the Interpretation to the fund, and has determined that there is no impact resulting from the adoption of this Interpretation on the fund's financial statements. 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 management and related administrative services and facilities to the fund. 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 agreed in writing 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 written agreement may be rescinded only upon consent of the fund's Board of Trustees. This management fee reduction amounted to $798,273, which is shown as a reduction of total expenses in the Statement of Operations. The management fee incurred for the year ended August 31, 2007 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 $31,489 and $552 for the year ended August 31, 2007, 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 MFD and another component of the plan is a service fee paid to MFD. MFD may subsequently pay all, or a portion, of the distribution and/or service fees to financial intermediaries. Distribution Fee Plan Table: TOTAL ANNUAL DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE AND SERVICE FEE RATE FEE RATE PLAN (d) RATE (e) FEE Class A 0.10% 0.25% 0.35% 0.35% $1,491,992 Class B 0.75% 0.25% 1.00% 1.00% 1,204,786 Class C 0.75% 0.25% 1.00% 1.00% 474,959 Class R 0.25% 0.25% 0.50% 0.50% 56,852 Class R1 0.50% 0.25% 0.75% 0.75% 13,430 Class R2 0.25% 0.25% 0.50% 0.50% 4,070 Class R3 0.25% 0.25% 0.50% 0.50% 30,626 Class R4 -- 0.25% 0.25% 0.25% 8,194 Class 529A 0.25% 0.25% 0.50% 0.35% 6,412 Class 529B 0.75% 0.25% 1.00% 1.00% 2,416 Class 529C 0.75% 0.25% 1.00% 1.00% 3,519 - --------------------------------------------------------------------------------------------------------------------- Total Distribution and Service Fees $3,297,256 (d) 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. (e) The annual effective rates represent actual fees incurred under the distribution plan for the year ended August 31, 2007 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 in effect and will be implemented on such date as the fund's Board of Trustees may determine. 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. All contingent deferred sales charges are paid to MFD and during the year ended August 31, 2007, were as follows: AMOUNT Class A $14,488 Class B 122,751 Class C 2,442 Class 529B 126 Class 529C 8 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% of the average daily net assets attributable to each 529 share class. The fee is based on average daily net assets and is currently established at 0.25% annually of average daily 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, 2007, were as follows: AMOUNT Class 529A $4,580 Class 529B 604 Class 529C 880 -------------------------------------------------- Total Program Manager Fees $6,064 SHAREHOLDER SERVICING AGENT - MFS Service Center, Inc. (MFSC), a wholly-owned subsidiary of MFS, receives a fee from the fund for its services as shareholder servicing agent calculated as a percentage of the average daily net assets of the fund as determined periodically under the supervision of the fund's Board of Trustees. For the year ended August 31, 2007, the fee was $499,520, which equated to 0.0626% annually of the fund's average daily net assets. MFSC also receives payment from the fund for out-of-pocket expenses, sub-accounting and other shareholder servicing costs which may be paid to affiliated and unaffiliated service providers. For the year ended August 31, 2007, these out-of-pocket expenses, sub-accounting and other shareholder servicing costs amounted to $1,099,689. The fund may also pay shareholder servicing related costs directly to non-related parties. Effective May 1, 2007, under a Special Servicing Agreement among MFS, each MFS fund which invests in other MFS funds ("MFS fund-of-funds") and each underlying fund in which a MFS fund-of-funds invests ("underlying funds"), each underlying fund may pay a portion of each MFS fund-of-fund's transfer agent-related expenses, including sub-accounting fees payable to financial intermediaries, to the extent such payments do not exceed the benefits realized or expected to be realized by the underlying fund from the investment in the underlying fund by the MFS fund-of-fund. For the year ended August 31, 2007, these costs for the fund amounted to $57,034 and are reflected in the shareholder servicing costs on the Statement of Operations. ADMINISTRATOR - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to the fund. Under an administrative services agreement, the fund partially reimburses MFS the costs incurred to provide these services. The fund is charged a fixed amount plus a fee based on average daily net assets. The fund's annual fixed amount is $17,500. The administrative services fee incurred for the year ended August 31, 2007 was equivalent to an annual effective rate of 0.0184% 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 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. MFS may subsequently pay all, or a portion, of the retirement plan administration and services fee to affiliated or unaffiliated third parties. For the year ended August 31, 2007, the fund paid MFS an annual retirement plan administration and services fee up to the following annual percentage rates of each class' average daily net assets: BEGINNING OF PERIOD ANNUAL THROUGH EFFECTIVE EFFECTIVE TOTAL 3/31/07 4/01/07 RATE (g) AMOUNT Class R1 0.45% 0.35% 0.35% $7,119 Class R2 0.40% 0.25% 0.25% 2,486 Class R3 0.25% 0.15% 0.15% 12,297 Class R4 0.15% 0.15% 0.15% 4,916 Class R5 0.10% 0.10% 0.10% 67,793 - ------------------------------------------------------------------------------- Total Retirement Plan Administration and Services Fees $94,611 (g) Prior to April 1, 2007, MFS had agreed in writing to waive a portion of the retirement plan administration and services fee equal to 0.10% for Class R1, 0.15% for Class R2, and 0.10% for Class R3 shares. This agreement was discontinued on March 31, 2007. On April 1, 2007, the annual retirement plan administration and services fee for Class R1, Class R2, and Class R3 shares was lowered to 0.35%, 0.25%, and 0.15%, respectively. For the year ended August 31, 2007, the waiver amounted to $4,410 and is reflected as a reduction of total expenses in the Statement of Operations. TRUSTEES' AND OFFICERS' 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 or officers of the fund who are also officers of the investment adviser, 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 certain retired independent trustees which resulted in a pension expense of $1,121. This amount is included in independent trustees' compensation for the year ended August 31, 2007. The liability for deferred retirement benefits payable to certain retired independent trustees amounted to $10,704 at August 31, 2007, and is included in payable for independent 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. The funds can terminate the Agreement with Tarantino LLC at any time under the terms of the Agreement. For the year ended August 31, 2007, the fee paid to Tarantino LLC was $5,087. MFS has agreed to reimburse the fund for a portion of the payments made by the funds to Tarantino LLC in the amount of $3,964, 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. (4) PORTFOLIO SECURITIES Purchases and sales of investments, other than U.S. government securities, purchased option transactions, and short-term obligations, aggregated $745,593,069 and $971,027,197, respectively. (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 YEAR ENDED 8/31/07 8/31/06 SHARES AMOUNT SHARES AMOUNT Shares sold Class A 5,563,012 $111,684,942 7,953,074 $139,051,896 Class B 599,714 11,263,960 1,176,971 19,953,581 Class C 243,280 4,592,254 418,367 7,100,792 Class I 1,789,894 38,201,060 1,827,818 33,352,164 Class R 142,739 2,778,955 236,757 4,181,606 Class R1 197,931 3,755,712 61,944 999,073 Class R2 86,299 1,688,610 20,328 341,919 Class R3 548,671 11,019,354 243,261 4,169,079 Class R4 304,819 6,218,173 171,176 3,009,174 Class R5 980,209 19,651,188 4,426,023 77,317,122 Class 529A 9,115 180,050 11,358 199,860 Class 529B 992 18,369 2,886 46,842 Class 529C 4,298 80,869 3,525 58,773 - ---------------------------------------------------------------------------------------------------------- 10,470,973 $211,133,496 16,553,488 $289,781,881 Shares reacquired Class A (10,378,331) $(206,306,927) (19,617,262) $(340,453,738) Class B (4,053,017) (76,486,862) (5,571,782) (93,109,606) Class C (986,396) (18,600,876) (1,106,411) (18,501,073) Class I (3,869,881) (79,984,656) (1,248,388) (22,194,362) Class R (452,494) (9,009,942) (551,980) (9,634,623) Class R1 (116,297) (2,217,569) (21,640) (361,890) Class R2 (27,164) (523,644) (6,398) (104,910) Class R3 (380,943) (7,628,258) (74,071) (1,264,874) Class R4 (219,218) (4,423,996) (49,063) (884,331) Class R5 (1,244,602) (24,800,560) (902,323) (15,966,127) Class 529A (21,408) (421,946) (12,151) (209,557) Class 529B (1,740) (33,317) (747) (12,139) Class 529C (8,189) (151,633) (3,536) (59,168) - ---------------------------------------------------------------------------------------------------------- (21,759,680) $(430,590,186) (29,165,752) $(502,756,398) Net change Class A (4,815,319) $(94,621,985) (11,664,188) $(201,401,842) Class B (3,453,303) (65,222,902) (4,394,811) (73,156,025) Class C (743,116) (14,008,622) (688,044) (11,400,281) Class I (2,079,987) (41,783,596) 579,430 11,157,802 Class R (309,755) (6,230,987) (315,223) (5,453,017) Class R1 81,634 1,538,143 40,304 637,183 Class R2 59,135 1,164,966 13,930 237,009 Class R3 167,728 3,391,096 169,190 2,904,205 Class R4 85,601 1,794,177 122,113 2,124,843 Class R5 (264,393) (5,149,372) 3,523,700 61,350,995 Class 529A (12,293) (241,896) (793) (9,697) Class 529B (748) (14,948) 2,139 34,703 Class 529C (3,891) (70,764) (11) (395) - ---------------------------------------------------------------------------------------------------------- (11,288,707) $(219,456,690) (12,612,264) $(212,974,517) The fund is one of several mutual funds in which the MFS funds-of-funds may invest. The MFS funds-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 9% of the value of outstanding voting shares. In addition, the MFS Lifetime 2020 Fund and the MFS Lifetime 2030 Fund were each the owners of record of less than 1% of the value of outstanding voting shares. (6) LINE OF CREDIT The fund and other funds managed by MFS participate in a $1 billion unsecured committed line of credit provided by a syndication of banks under a credit agreement. In addition, the fund and other funds managed by MFS have established uncommitted borrowing arrangements with certain banks. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its borrowings, generally at a rate equal to the Federal Reserve funds rate plus 0.30%. In addition, a commitment fee, based on the average daily, unused portion of the committed line of credit, is allocated among the participating funds at the end of each calendar quarter. For the year ended August 31, 2007, the fund's commitment fee and interest expense were $4,076 and $17,936, respectively, and are included in miscellaneous expense on the Statement of Operations. 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, 2007, 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, 2007, by correspondence with the Fund's 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, 2007, 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 16, 2007 TRUSTEES AND OFFICERS -- IDENTIFICATION AND BACKGROUND The Trustees and officers of the Trust, as of October 1, 2007, 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(h) OTHER DIRECTORSHIPS(j) - -------------------------------------------------------------------------------------------------------------- INTERESTED TRUSTEES Robert J. Manning(k) Trustee February 2004 Massachusetts Financial Services (born 10/20/63) Company, Chief Executive Officer, President, Chief Investment Officer and Director Robert C. Pozen(k) Trustee February 2004 Massachusetts Financial Services (born 8/08/46) Company, Chairman (since February 2004); MIT Sloan School (education), Senior Lecturer (since 2006); 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 5/01/36) of Trustees Enterprises (diversified services company), Chairman, Trustee and Chief Executive Officer (until November 2000) Robert E. Butler(n) Trustee January 2006 Consultant - regulatory and (born 11/29/41) compliance matters (since July 2002); PricewaterhouseCoopers LLP (professional services firm), Partner (until 2002) Lawrence H. Cohn, M.D. Trustee August 1993 Brigham and Women's Hospital, (born 3/11/37) Chief of Cardiac Surgery (2005); Harvard Medical School, Professor of Cardiac Surgery; Physician Director of Medical Device Technology for Partners HealthCare David H. Gunning Trustee January 2004 Retired; Cleveland-Cliffs Inc. (born 5/30/42) (mining products and service provider), Vice Chairman/Director (until May 2007); Portman Limited (mining), Director (since 2005); 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 9/27/41) consultant; Capitol Entertainment Management Company (video franchise), Vice Chairman; Atlantic Coast Tan (tanning salons), Vice Chairman (since 2002) 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) Lawrence T. Perera Trustee July 1981 Hemenway & Barnes (attorneys), (born 6/23/35) Partner J. Dale Sherratt Trustee August 1993 Insight Resources, Inc. (born 9/23/38) (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 New Profit, Inc. (venture (born 8/05/57) philanthropy), Partner (since 2006); Private investor; Prism Venture Partners (venture capital), Co-founder and General Partner (until June 2004); The Travelers Companies (commercial property liability insurance), Director Robert W. Uek Trustee January 2006 Retired (since 1999); (born 5/18/41) PricewaterhouseCoopers LLP (professional services firm), Partner (until 1999); Consultant to investment company industry (since 2000); TT International Funds (mutual fund complex), Trustee (2000 until 2005); Hillview Investment Trust II Funds (mutual fund complex), Trustee (2000 until 2005) OFFICERS Maria F. Dwyer(k) President November 2005 Massachusetts Financial Services (born 12/01/58) Company, Executive Vice President and Chief Regulatory Officer (since March 2004) Chief Compliance Officer (since December 2006); Fidelity Management & Research Company, Vice President (prior to March 2004); Fidelity Group of Funds, President and Treasurer (prior to March 2004) Tracy Atkinson(k) 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(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 1/18/74) and Assistant Clerk Company, Vice President and Senior Counsel (since April 2003); Kirkpatrick & Lockhart LLP (law firm), Associate (prior to April 2003) Ethan D. Corey(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 11/21/63) and Assistant Clerk Company, Special Counsel (since December 2004); Dechert LLP (law firm), Counsel (prior to December 2004) David L. DiLorenzo(k) Assistant Treasurer July 2005 Massachusetts Financial Services (born 8/10/68) Company, Vice President (since June 2005); JP Morgan Investor Services, Vice President (prior to June 2005) Mark D. Fischer(k) Assistant Treasurer July 2005 Massachusetts Financial Services (born 10/27/70) Company, Vice President (since May 2005); JP Morgan Investment Management Company, Vice President (prior to May 2005) Brian E. Langenfeld(k) Assistant Secretary June 2006 Massachusetts Financial Services (born 3/07/73) and Assistant Clerk Company, Assistant Vice President and Counsel (since May 2006); John Hancock Advisers, LLC, Assistant Vice President and Counsel (May 2005 to April 2006); John Hancock Advisers, LLC, Attorney and Assistant Secretary (prior to May 2005) Ellen Moynihan(k) Assistant Treasurer April 1997 Massachusetts Financial Services (born 11/13/57) Company, Senior Vice President Susan S. Newton(k) Assistant Secretary May 2005 Massachusetts Financial Services (born 3/07/50) and Assistant Clerk Company, Senior Vice President and 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(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 11/05/70) and Assistant Clerk Company, Vice President and Senior Counsel (since June 2004); Bingham McCutchen LLP (law firm), Associate (prior to June 2004) Mark N. Polebaum(k) Secretary and Clerk January 2006 Massachusetts Financial Services (born 5/01/52) Company, Executive Vice President, General Counsel and Secretary (since January 2006); Wilmer Cutler Pickering Hale and Dorr LLP (law firm), Partner (prior to January 2006) Frank L. Tarantino Independent Chief June 2004 Tarantino LLC (provider of (born 3/07/44) Compliance Officer compliance services), Principal (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 (prior to March 2003) James O. Yost(k) Assistant Treasurer September 1990 Massachusetts Financial Services (born 6/12/60) Company, Senior Vice President - ------------ (h) Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served continuously since appointment unless indicated otherwise. (j) Directorships or trusteeships of companies required to report to the Securities and Exchange Commission (i.e., "public companies"). (k) "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. (n) In 2004 and 2005, Mr. Butler provided consulting services to the independent compliance consultant retained by MFS pursuant to its settlement with the SEC concerning market timing and related matters. The terms of that settlement required that compensation and expenses related to the independent compliance consultant be borne exclusively by MFS and, therefore, MFS paid Mr. Butler for the services he rendered to the independent compliance consultant. In 2004 and 2005, MFS paid Mr. Butler a total of $351,119.29. The Trust held a shareholders' meeting in 2005 to elect Trustees, and will hold a shareholders' meeting at least once every five years thereafter, to elect Trustees. Each Trustee (except Mr. Butler and Mr. Uek) 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. Butler, Gutow, Sherratt and Uek and Ms. 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 January 1, 2007, the Trustees served as board members of 97 funds within the MFS Family of Funds. 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 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, 2007 ("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 that included, among other items: (i) information provided by Lipper Inc. on the investment performance of the Fund for various time periods ended December 31, 2006 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 ("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 MFS peer funds, (iii) information provided by MFS on the advisory fees of comparable portfolios of other clients of MFS, including institutional separate accounts 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 in 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, 2006, which the Trustees believed was a long enough period to reflect differing market conditions. The total return performance of the Fund's Class A shares was in the 4th quintile relative to the other funds in the universe for this three-year period (the 1st quintile being the best performers and the 5th quintile being the worst performers). The total return performance of the Fund's Class A shares was in the 2nd quintile for the one-year period and the 5th quintile for the five-year period ended December 31, 2006 relative to the Lipper performance universe. Because of the passage of time, these performance results may differ from the performance results for more recent periods, including those shown elsewhere in this report. The Trustees expressed continued concern to MFS about the substandard investment performance of the Fund. 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 changes to the portfolio management team in 2005 and the Fund's improved performance in the one-year period. In addition, the Trustees requested that they receive a separate update on the Fund's performance at each of their regular meetings. After reviewing these and related factors, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreement, that MFS' responses and efforts and plans to improve investment performance were sufficient to support approval of the continuance of the investment advisory agreement for an additional one year period, but that they would continue to closely monitor the performance of the Fund. 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 daily 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 that MFS has agreed in writing to waive a portion of its advisory fee on average daily net assets up to $1.5 billion and to waive a further portion of its advisory fee on average daily net assets over $1.5 billion, which may not be changed without the Trustees' approval. The Trustees also considered that, according to the Lipper data (which takes into account the advisory fee waiver), 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 the breakpoint described above. 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 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 that 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, which may include 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, if applicable, to pay for investment research and other similar services (excluding third-party research, for which MFS pays directly), 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, 2007. A discussion regarding the Board's most recent review and renewal of the Fund's investment advisory agreement will be available on or before November 1, 2007 by clicking on the fund's name under "Select a fund" on the MFS Web site (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 100 F Street, NE, Room 1580 Washington, D.C. 20549 Information on the operation of the Public Reference Room may be obtained by calling the Commission at 1-202-551-5850. The fund's Form N-Q is available on the EDGAR database on the Commission's Internet Web site 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) The fund will notify shareholders of amounts for use in preparing 2007 income tax forms in January 2008. MFS(R) PRIVACY NOTICE Privacy is a concern for every investor today. At MFS Investment Management(R) and the MFS funds, we take this concern very seriously. We want you to understand our policies about the investment products and services that we offer, and how we protect the nonpublic personal information of investors who have a direct relationship with us and our wholly owned subsidiaries. Throughout our business relationship, you provide us with personal information. We maintain information and records about you, your investments, and the services you use. Examples of the nonpublic personal information we maintain include o data from investment applications and other forms o share balances and transactional history with us, our affiliates, or others o facts from a consumer reporting agency We do not disclose any nonpublic personal information about our customers or former customers to anyone, except as permitted by law. We may share nonpublic personal information with third parties or certain of our affiliates in connection with servicing your account or processing your transactions. We may share information with companies or financial institutions that perform marketing services on our behalf or with other financial institutions with which we have joint marketing arrangements, subject to any legal requirements. Authorization to access your nonpublic personal information is limited to appropriate personnel who provide products, services, or information to you. We maintain physical, electronic, and procedural safeguards to help protect the personal information we collect about you. If you have any questions about the MFS privacy policy, please call 1-800-225-2606 any business day between 8 a.m. and 8 p.m. Eastern time. Note: If you own MFS products or receive MFS services in the name of a third party such as a bank or broker-dealer, their privacy policy may apply to you instead of ours. CONTACT US WEB SITE MAILING ADDRESS mfs.com MFS Service Center, Inc. P.O. Box 55824 MFS TALK Boston, MA 02205-5824 1-800-637-8255 24 hours a day OVERNIGHT MAIL MFS Service Center, Inc. ACCOUNT SERVICE AND 500 Boylston Street LITERATURE Boston, MA 02116-3741 SHAREHOLDERS 1-800-225-2606 8 a.m. to 8 p.m. ET INVESTMENT PROFESSIONALS 1-800-343-2829 8 a.m. to 8 p.m. ET RETIREMENT PLAN SERVICES 1-800-637-1255 8 a.m. to 8 p.m. ET - ------------------------------------------------------------------------------- Go paperless with eDELIVERY: Arrange to have MFS(R) send prospectuses, reports, and proxies directly to your e-mail inbox. You'll get timely information and less clutter in your mailbox (not to mention help your fund save printing and postage costs). SIGN UP: If your account is registered with us, simply go to MFS.COM, log in to your account via MFS(R) Access, and select the eDelivery sign up options. If you own your MFS fund shares through a financial institution or a retirement plan, MFS(R) TALK, MFS Access, and eDelivery may not be available to you. - ------------------------------------------------------------------------------- M F S(R) INVESTMENT MANAGEMENT M F S(R) INVESTMENT MANAGEMENT [graphic omitted] Annual report MFS(R) RESEARCH INTERNATIONAL FUND LETTER FROM THE CEO 1 - -------------------------------------------------------------- PORTFOLIO COMPOSITION 2 - -------------------------------------------------------------- MANAGEMENT REVIEW 3 - -------------------------------------------------------------- PERFORMANCE SUMMARY 6 - -------------------------------------------------------------- EXPENSE TABLE 9 - -------------------------------------------------------------- PORTFOLIO OF INVESTMENTS 11 - -------------------------------------------------------------- STATEMENT OF ASSETS AND LIABILITIES 17 - -------------------------------------------------------------- STATEMENT OF OPERATIONS 20 - -------------------------------------------------------------- STATEMENTS OF CHANGES IN NET ASSETS 21 - -------------------------------------------------------------- FINANCIAL HIGHLIGHTS 23 - -------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS 37 - -------------------------------------------------------------- REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 49 - -------------------------------------------------------------- TRUSTEES AND OFFICERS 50 - -------------------------------------------------------------- BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT 56 - -------------------------------------------------------------- PROXY VOTING POLICIES AND INFORMATION 60 - -------------------------------------------------------------- QUARTERLY PORTFOLIO DISCLOSURE 60 - -------------------------------------------------------------- FEDERAL TAX INFORMATION 60 - -------------------------------------------------------------- MFS(R) PRIVACY NOTICE 61 - -------------------------------------------------------------- CONTACT INFORMATION BACK COVER - -------------------------------------------------------------- THE 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. - ------------------------------------------------------------------------------ NOT FDIC INSURED o MAY LOSE VALUE o NO BANK OR CREDIT UNION GUARANTEE o NOT A DEPOSIT o NOT INSURED BY ANY FEDERAL GOVERNMENT AGENCY OR NCUA/NCUSIF - ------------------------------------------------------------------------------ 8/31/07 RIF-ANN LETTER FROM THE CEO [Photo of Robert J. Manning] Dear Shareholders: The past year has been a great example of why investors should keep their eyes on the long term. In 2006 the Dow Jones Industrial Average returned 19%. But the Dow's upward rise has not been without hiccups. After hitting new records in July 2007, the Dow lost 8% in the following weeks as a crisis swept global credit markets. As we have said before, markets can be volatile, and investors should make sure they have an investment plan that can carry them through the peaks and troughs. If you are focused on a long-term investment strategy, the short-term ups and downs of the markets should not necessarily dictate portfolio action on your part. Both the bond and stock markets are cyclical. In our view, investors who remain committed to a long-term plan are more likely to achieve their financial goals. We believe you should not let the headlines guide you in your investment decisions and should be cautious about overreacting to short-term volatility. In any market environment, we believe individual investors are best served by following a three-pronged investment strategy of allocating their holdings across the major asset classes, diversifying within each class, and regularly rebalancing their portfolios to maintain their desired allocations. Of course, these strategies cannot guarantee a profit or protect against a loss. Investing and planning for the long term require diligence and patience, two traits that in our experience are essential to capitalizing on the many opportunities the financial markets can offer -- through both up and down economic cycles. Respectfully, /s/ Robert J. Manning Robert J. Manning Chief Executive Officer and Chief Investment Officer MFS Investment Management(R) October 15, 2007 The opinions expressed in this letter are subject to change, may not be relied upon for investment advice, and no forecasts can be guaranteed. PORTFOLIO COMPOSITION PORTFOLIO STRUCTURE Common Stocks 97.9% Cash & Other Net Assets 2.1% TOP TEN HOLDINGS BHP Billiton PLC 2.6% ----------------------------------------------- Royal Dutch Shell PLC, "A" 2.6% ----------------------------------------------- Nestle S.A. ` 2.5% ----------------------------------------------- E.ON AG 2.5% ----------------------------------------------- TOTAL S.A. 2.4% ----------------------------------------------- Linde AG 2.2% ----------------------------------------------- HSBC Holdings PLC 1.9% ----------------------------------------------- Credit Agricole S.A. 1.8% ----------------------------------------------- WPP Group PLC 1.8% ----------------------------------------------- Vodafone Group PLC 1.8% ----------------------------------------------- EQUITY SECTORS Financial Services 27.1% ----------------------------------------------- Utilities & Communications 9.5% ----------------------------------------------- Energy 8.8% ----------------------------------------------- Basic Materials 7.9% ----------------------------------------------- Health Care 6.9% ----------------------------------------------- Consumer Staples 6.8% ----------------------------------------------- Technology 6.7% ----------------------------------------------- Industrial Goods & Services 5.7% ----------------------------------------------- Retailing 5.4% ----------------------------------------------- Autos & Housing 4.9% ----------------------------------------------- Special Products & Services 3.9% ----------------------------------------------- Leisure 2.7% ----------------------------------------------- Transportation 1.6% ----------------------------------------------- COUNTRY WEIGHTINGS United Kingdom 19.8% ----------------------------------------------- Japan 13.4% ----------------------------------------------- Germany 13.2% ----------------------------------------------- France 11.9% ----------------------------------------------- Switzerland 10.6% ----------------------------------------------- Italy 4.0% ----------------------------------------------- Netherlands 2.7% ----------------------------------------------- South Korea 2.4% ----------------------------------------------- Australia 2.2% ----------------------------------------------- Other Countries 19.8% ----------------------------------------------- Percentages are based on net assets as of 08/31/07. The portfolio is actively managed and current holdings may be different. MANAGEMENT REVIEW SUMMARY OF RESULTS For the twelve months ended August 31, 2007, Class A shares of the MFS Research International Fund provided a total return of 17.82%, at net asset value. This compares with a return of 19.20% for the fund's benchmark, the MSCI EAFE Index. The fund's other benchmark, the MSCI All Country World (ex- U.S.) Index provided a return of 23.00%. MARKET ENVIRONMENT The U.S. economy continues to decouple from the rest of the world, growing at a slower pace than other major economies. Overall, global economies have seen moderate to strong growth over the last twelve months as domestic demand improves and world trade accelerates. With the stronger growth, however, has come increased concern about rising global inflation, especially as capacity becomes more constrained, wages rise, and energy and food prices advance. Late in the reporting period, continued robust global growth and fears of rising inflationary pressures led global central banks to tighten monetary conditions beyond market expectations, which in turn pushed global bond yields to their highest levels during this economic expansion. However, beginning in late July and August, heightened uncertainty and distress concerning the subprime mortgage market caused several global credit markets to seize up, forcing central banks to inject liquidity and to reassess their tightening biases as sovereign bond yields plummeted and credit spreads widened considerably. Increased market volatility has been exacerbated by U.S. home foreclosures, falling housing prices, and weaker-than-expected jobs growth reported by the U.S. Department of Labor. Despite increased volatility across all asset classes, and the widening in credit spreads, global equity markets have experienced only a mild correction to date. DETRACTORS FROM PERFORMANCE For the MFS Research International Fund, security selection in the financial services sector was the primary detractor to performance relative to the MSCI EAFE Index. In particular, our positions in banking and financial services firms Sumitomo Mitsui Financial (Japan) and Shinsei Bank (Japan)(g), and consumer finance firm Aeon Credit Service (Japan), hurt results. Aeon Credit Service was negatively affected by regulatory changes that limit the interest rate credit card companies can charge customers and changes to reserve requirements. We continue to hold the position given its attractive valuation, strong position in the Japanese market, and its exposure to faster emerging economies through its subsidiaries in Hong Kong, Thailand, Taiwan, and Malaysia. Japanese financial firms have also been affected by the recent sub- prime mortgage and asset-backed security woes. Other holdings in the sector that dampened results included bank Credit Agricole (France) and investment management and banking firm UBS (Switzerland). In the technology sector, the fund's holdings of microchip and electronics manufacturer Samsung Electronics (South Korea)(aa) hurt results as shares suffered from lower demand and pricing pressure on LCD and memory components. Consumer electronics manufacturer Funai Electric (Japan)(aa) also adversely impacted results. Not owning benchmark constituent Nokia (Finland), a mobile phone maker, detracted from results as the stock outperformed the benchmark. Security selection in the autos and housing sector also held back relative performance over the reporting period, although no individual holdings within this sector were among the top detractors. Elsewhere, our holdings of pharmaceutical firm GlaxoSmithKline (U.K.) and telecom company Vodafone (U.K.) hurt relative returns. During the reporting period, our currency exposure was a detractor from the fund's relative performance. All of MFS' investment decisions are driven by the fundamentals of each individual opportunity and, as such, it is common for our funds to have different currency exposure than the benchmark. CONTRIBUTORS TO PERFORMANCE The basic materials and health care sectors were the top contributors to performance relative to the MSCI EAFE Index. In the basic materials sector, the fund's shares of strong-performing steel manufacturers Steel Authority of India (India)(aa) and Posco Ads (South Korea)(aa)(g) benefited from access to cheap raw materials in an environment where demand exceeds supply. Also contributing to relative results was our overweighted position in mining giant BHP Billiton (U.K.). Stock selection in the health care sector helped boost the fund's relative performance over the reporting period. The fund derived solid gains from our investments in biopharmaceutical company Actelion Ltd. (Switzerland)(aa) and healthcare products maker Bayer (Germany). Not owning benchmark constituent AstraZeneca (U.K.), a pharmaceutical firm, also helped as shares of this firm performed poorly relative to the benchmark. Within the utilities & communications sector, our overweighted position of telecommunications company Telenor A.S.A. (Norway) aided results as this benchmark constituent outperformed the index over the period. Elsewhere, our holdings in banking firm Unibanco-Uniao de Banco Brasileiros (Brazil)(aa) contributed to relative results. Not owning financial services firm Mizuho Financial (Japan) and integrated oil company BP (U.K.) also helped. Respectfully, Jose Luis Garcia Thomas Melendez Portfolio Manager Portfolio Manager (aa) Security is not a benchmark constituent. (g) Security was not held in the portfolio at period end. 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 or 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 portfolio. References to specific securities are not recommendations of such securities, and may not be representative of any MFS portfolio's current or future investments. PERFORMANCE SUMMARY THROUGH 8/31/07 The following chart illustrates a representative class of the fund's historical performance 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. The performance of other share classes will be greater than or less than that of the class depicted below. Benchmark comparisons are unmanaged; do not reflect sales charges, commissions or expenses; and cannot be invested in directly. (See Notes to Performance Summary). PERFORMANCE DATA SHOWN REPRESENTS PAST PERFORMANCE AND IS NO GUARANTEE OF FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE FLUCTUATE SO YOUR SHARES, WHEN SOLD, MAY BE WORTH MORE OR LESS THAN THE ORIGINAL COST; CURRENT PERFORMANCE MAY BE LOWER OR HIGHER THAN QUOTED. 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 MFS Research MSCI MSCI AC World International EAFE (ex-U.S.) Fund - Class A Index Index 8/97 $ 9,425 $10,000 $10,000 8/98 9,795 10,013 9,353 8/99 12,100 12,619 12,132 8/00 16,093 13,858 13,567 8/01 12,591 10,521 10,136 8/02 11,080 8,976 8,812 8/03 11,850 9,836 9,889 8/04 14,653 12,106 12,128 8/05 17,974 15,023 15,413 8/06 22,860 18,746 19,334 8/07 26,935 22,345 23,781 TOTAL RETURNS THROUGH 8/31/07 AVERAGE ANNUAL WITHOUT SALES CHARGE Share class Class inception date 1-yr 5-yr 10-yr - ---------------------------------------------------------------------------- A 1/02/97 17.82% 19.44% 11.07% - ---------------------------------------------------------------------------- B 1/02/98 17.08% 18.65% 10.41% - ---------------------------------------------------------------------------- C 1/02/98 17.05% 18.66% 10.40% - ---------------------------------------------------------------------------- I 1/02/97 18.27% 19.85% 11.47% - ---------------------------------------------------------------------------- W 5/01/06 18.15% 19.52% 11.11% - ---------------------------------------------------------------------------- R 12/31/02 17.70% 19.28% 11.00% - ---------------------------------------------------------------------------- R1 4/01/05 17.00% 19.01% 10.87% - ---------------------------------------------------------------------------- R2 4/01/05 17.34% 19.20% 10.96% - ---------------------------------------------------------------------------- R3 10/31/03 17.50% 19.12% 10.92% - ---------------------------------------------------------------------------- R4 4/01/05 17.78% 19.41% 11.06% - ---------------------------------------------------------------------------- R5 4/01/05 18.13% 19.59% 11.14% - ---------------------------------------------------------------------------- 529A 7/31/02 17.51% 19.14% 10.93% - ---------------------------------------------------------------------------- 529B 7/31/02 16.78% 18.36% 10.57% - ---------------------------------------------------------------------------- 529C 7/31/02 16.79% 18.35% 10.57% - ---------------------------------------------------------------------------- AVERAGE ANNUAL Comparative benchmark - ---------------------------------------------------------------------------- MSCI EAFE Index (f) 19.20% 20.01% 8.37% - ---------------------------------------------------------------------------- MSCI AC World (ex-U.S.) Index (f) 23.00% 21.96% 9.05% - ---------------------------------------------------------------------------- AVERAGE ANNUAL WITH SALES CHARGE Share class - ---------------------------------------------------------------------------- A 11.05% 18.04% 10.42% With Initial Sales Charge (5.75%) - ---------------------------------------------------------------------------- B 13.08% 18.45% 10.41% With CDSC (Declining over six years from 4% to 0%) (x) - ---------------------------------------------------------------------------- C 16.05% 18.66% 10.40% With CDSC (1% for 12 months) (x) - ---------------------------------------------------------------------------- 529A 10.76% 17.74% 10.28% With Initial Sales Charge (5.75%) - ---------------------------------------------------------------------------- 529B 12.78% 18.15% 10.57% With CDSC (Declining over six years from 4% to 0%) (x) - ---------------------------------------------------------------------------- 529C 15.79% 18.35% 10.57% With CDSC (1% for 12 months) (x) - ---------------------------------------------------------------------------- Class I, W, R, R1, R2, R3, R4, and R5 shares do not have a sales charge. Please see Notes to Performance Summary for more details. CDSC - Contingent Deferred Sales Charge. (f) Source: FactSet Research Systems Inc. (x) Assuming redemption at the end of the applicable period. INDEX DEFINITIONS Morgan Stanley Capital International (MSCI) All Country World (ex-U.S.) Index - - a market capitalization index that is designed to measure equity market performance in the developed and emerging markets, excluding the U.S. Morgan Stanley Capital International (MSCI) EAFE (Europe, Australasia, Far East) Index - a market capitalization index that is designed to measure equity market performance in the developed markets, excluding the U.S. and Canada. It is not possible to invest directly in an index. NOTES TO PERFORMANCE SUMMARY 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, 2007 through August 31, 2007 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 (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, 2007 through August 31, 2007. ACTUAL EXPENSES The first line for each share class in the following table 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 following table 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). 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(p) Share Expense Account Value Account Value 3/01/07- Class Ratio 3/01/07 8/31/07 8/31/07 - -------------------------------------------------------------------------------- Actual 1.35% $1,000.00 $1,065.80 $7.03 A ----------------------------------------------------------------------- Hypothetical (h) 1.35% $1,000.00 $1,018.40 $6.87 - -------------------------------------------------------------------------------- Actual 2.00% $1,000.00 $1,062.30 $10.40 B ----------------------------------------------------------------------- Hypothetical (h) 2.00% $1,000.00 $1,015.12 $10.16 - -------------------------------------------------------------------------------- Actual 2.00% $1,000.00 $1,062.00 $10.39 C ----------------------------------------------------------------------- Hypothetical (h) 2.00% $1,000.00 $1,015.12 $10.16 - -------------------------------------------------------------------------------- Actual 1.00% $1,000.00 $1,067.70 $5.21 I ----------------------------------------------------------------------- Hypothetical (h) 1.00% $1,000.00 $1,020.16 $5.09 - -------------------------------------------------------------------------------- Actual 1.11% $1,000.00 $1,066.90 $5.78 W ----------------------------------------------------------------------- Hypothetical (h) 1.11% $1,000.00 $1,019.61 $5.65 - -------------------------------------------------------------------------------- Actual 1.50% $1,000.00 $1,065.30 $7.81 R ----------------------------------------------------------------------- Hypothetical (h) 1.50% $1,000.00 $1,017.64 $7.63 - -------------------------------------------------------------------------------- Actual 2.10% $1,000.00 $1,061.90 $10.91 R1 ----------------------------------------------------------------------- Hypothetical (h) 2.10% $1,000.00 $1,014.62 $10.66 - -------------------------------------------------------------------------------- Actual 1.76% $1,000.00 $1,063.30 $9.15 R2 ----------------------------------------------------------------------- Hypothetical (h) 1.76% $1,000.00 $1,016.33 $8.94 - -------------------------------------------------------------------------------- Actual 1.65% $1,000.00 $1,064.50 $8.59 R3 ----------------------------------------------------------------------- Hypothetical (h) 1.65% $1,000.00 $1,016.89 $8.39 - -------------------------------------------------------------------------------- Actual 1.40% $1,000.00 $1,065.60 $7.29 R4 ----------------------------------------------------------------------- Hypothetical (h) 1.40% $1,000.00 $1,018.15 $7.12 - -------------------------------------------------------------------------------- Actual 1.10% $1,000.00 $1,067.40 $5.73 R5 ----------------------------------------------------------------------- Hypothetical (h) 1.10% $1,000.00 $1,019.66 $5.60 - -------------------------------------------------------------------------------- Actual 1.60% $1,000.00 $1,064.40 $8.33 529A ----------------------------------------------------------------------- Hypothetical (h) 1.60% $1,000.00 $1,017.14 $8.13 - -------------------------------------------------------------------------------- Actual 2.25% $1,000.00 $1,061.00 $11.69 529B ----------------------------------------------------------------------- Hypothetical (h) 2.25% $1,000.00 $1,013.86 $11.42 - -------------------------------------------------------------------------------- Actual 2.25% $1,000.00 $1,061.00 $11.69 529C ----------------------------------------------------------------------- Hypothetical (h) 2.25% $1,000.00 $1,013.86 $11.42 - -------------------------------------------------------------------------------- (h) 5% class return per year before expenses. (p) Expenses paid is equal to each class' annualized expense ratio, as shown above, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year. Expenses paid do not include any applicable sales charges (loads). If these transaction costs had been included, your costs would have been higher. PORTFOLIO OF INVESTMENTS 8/31/07 The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Common Stocks - 97.9% - ---------------------------------------------------------------------------------------------------- ISSUER SHARES/PAR VALUE ($) - ---------------------------------------------------------------------------------------------------- Aerospace - 0.9% - ---------------------------------------------------------------------------------------------------- Finmeccanica S.p.A.(l) 1,399,310 $ 41,010,100 - ---------------------------------------------------------------------------------------------------- Alcoholic Beverages - 1.8% - ---------------------------------------------------------------------------------------------------- Heineken N.V. (l) 954,840 $ 60,469,059 Pernod Ricard S.A. (l) 111,628 23,502,953 --------------- $ 83,972,012 - ---------------------------------------------------------------------------------------------------- Apparel Manufacturers - 3.7% - ---------------------------------------------------------------------------------------------------- Adidas AG (l) 1,243,210 $ 73,090,642 Billabong International Ltd. (l) 986,358 12,776,700 Li & Fung Ltd. 7,400,000 27,425,860 LVMH Moet Hennessy Louis Vuitton S.A. (l) 574,120 64,135,731 --------------- $ 177,428,933 - ---------------------------------------------------------------------------------------------------- Automotive - 3.2% - ---------------------------------------------------------------------------------------------------- Bayerische Motoren Werke AG (l) 1,048,760 $ 63,773,387 Bridgestone Corp. 3,460,300 69,316,548 Compagnie Generale des Etablissements Michelin 154,637 19,482,772 --------------- $ 152,572,707 - ---------------------------------------------------------------------------------------------------- Biotechnology - 0.6% - ---------------------------------------------------------------------------------------------------- Actelion Ltd. (a)(l) 486,536 $ 26,982,793 - ---------------------------------------------------------------------------------------------------- Broadcasting - 2.7% - ---------------------------------------------------------------------------------------------------- Antena 3 de Television S.A. (l) 1,007,135 $ 18,826,877 Grupo Televisa S.A., ADR 768,200 20,019,292 WPP Group PLC 6,164,300 87,757,952 --------------- $ 126,604,121 - ---------------------------------------------------------------------------------------------------- Brokerage & Asset Managers - 1.8% - ---------------------------------------------------------------------------------------------------- EFG International 722,440 $ 31,992,832 Nomura Holdings, Inc. (l) 3,044,400 53,887,838 --------------- $ 85,880,670 - ---------------------------------------------------------------------------------------------------- Business Services - 2.0% - ---------------------------------------------------------------------------------------------------- Bunzl PLC 1,681,330 $ 23,359,858 Intertek Group PLC 1,492,540 29,555,307 Mitsubishi Corp. 1,025,500 28,866,123 Mitsui & Co. Ltd. 731,000 15,211,415 --------------- $ 96,992,703 - ---------------------------------------------------------------------------------------------------- Chemicals - 1.6% - ---------------------------------------------------------------------------------------------------- Makhteshim-Agan Industries Ltd. (a) 3,552,900 $ 27,298,662 Syngenta AG 264,244 49,454,158 --------------- $ 76,752,820 - ---------------------------------------------------------------------------------------------------- Computer Software - 1.1% - ---------------------------------------------------------------------------------------------------- SAP AG (l) 1,016,430 $ 54,744,535 - ---------------------------------------------------------------------------------------------------- Computer Software - Systems - 0.2% - ---------------------------------------------------------------------------------------------------- HCL Technologies Ltd. 1,384,750 $ 10,325,916 - ---------------------------------------------------------------------------------------------------- Conglomerates - 1.9% - ---------------------------------------------------------------------------------------------------- Siemens AG (l) 624,090 $ 78,391,238 Smiths Group PLC 734,414 14,616,928 --------------- $ 93,008,166 - ---------------------------------------------------------------------------------------------------- Construction - 1.7% - ---------------------------------------------------------------------------------------------------- CRH PLC 788,340 $ 34,156,799 Geberit AG 224,019 33,006,690 Siam Cement Public Co. Ltd. 1,811,900 13,413,658 --------------- $ 80,577,147 - ---------------------------------------------------------------------------------------------------- Consumer Goods & Services - 2.2% - ---------------------------------------------------------------------------------------------------- Kao Corp. (l) 1,650,000 $ 46,872,167 Kimberly-Clark de Mexico S.A. de C.V., "A" 3,325,230 14,174,919 Reckitt Benckiser PLC 820,880 44,676,647 --------------- $ 105,723,733 - ---------------------------------------------------------------------------------------------------- Electrical Equipment - 2.5% - ---------------------------------------------------------------------------------------------------- LS Industrial Systems Co. Ltd. 223,030 $ 12,764,946 OMRON Corp. 1,641,800 43,520,494 Schneider Electric S.A. (l) 484,830 64,406,631 --------------- $ 120,692,071 - ---------------------------------------------------------------------------------------------------- Electronics - 5.2% - ---------------------------------------------------------------------------------------------------- ARM Holdings PLC 12,856,490 $ 38,174,709 Funai Electric Co. Ltd. (l) 302,100 13,303,199 Konica Minolta Holdings, Inc. 1,572,500 24,684,238 Nippon Electric Glass Co. Ltd. 1,749,000 25,340,604 Royal Philips Electronics N.V 1,122,510 44,246,114 Samsung Electronics Co. Ltd. 92,333 58,160,195 Taiwan Semiconductor Manufacturing Co. Ltd. 10,291,000 19,552,900 Venture Corp. Ltd. 2,317,000 23,683,910 --------------- $ 247,145,869 - ---------------------------------------------------------------------------------------------------- Energy - Independent - 1.2% - ---------------------------------------------------------------------------------------------------- INPEX Holdings, Inc. (l) 2,820 $ 25,810,128 OMV AG 236,200 14,659,014 PTT Public Co. Ltd. 2,185,500 18,600,000 --------------- $ 59,069,142 - ---------------------------------------------------------------------------------------------------- Energy - Integrated - 7.1% - ---------------------------------------------------------------------------------------------------- OAO Gazprom, ADR 735,220 $ 30,548,391 Petroleo Brasileiro S.A., ADR 375,730 23,235,143 Royal Dutch Shell PLC, "A" 3,142,850 121,997,912 Statoil A.S.A. (l) 1,723,490 49,688,756 TOTAL S.A 1,516,090 114,128,405 --------------- $ 339,598,607 - ---------------------------------------------------------------------------------------------------- Food & Beverages - 2.8% - ---------------------------------------------------------------------------------------------------- Nestle S.A 277,781 $ 120,829,332 Nong Shim Co. Ltd. 43,347 11,087,962 --------------- $ 131,917,294 - ---------------------------------------------------------------------------------------------------- Insurance - 2.7% - ---------------------------------------------------------------------------------------------------- AXA 2,052,200 $ 82,233,958 Suncorp-Metway Ltd. 2,732,309 44,882,881 --------------- $ 127,116,839 - ---------------------------------------------------------------------------------------------------- Internet - 0.2% - ---------------------------------------------------------------------------------------------------- Universo Online S.A., IPS (a) 1,668,500 $ 9,127,201 - ---------------------------------------------------------------------------------------------------- Machinery & Tools - 2.3% - ---------------------------------------------------------------------------------------------------- Bucyrus International, Inc. (l) 759,900 $ 47,486,151 GEA Group AG (a) 1,072,450 34,630,749 KOMATSU Ltd. 967,000 29,807,797 --------------- $ 111,924,697 - ---------------------------------------------------------------------------------------------------- Major Banks - 14.3% - ---------------------------------------------------------------------------------------------------- Barclays PLC 5,274,980 $ 65,257,945 BNP Paribas (l) 603,023 63,609,726 BOC Hong Kong Holdings Ltd. 21,125,500 50,715,830 Credit Agricole S.A. (l) 2,337,474 88,219,185 Deutsche Postbank AG (l) 443,050 32,126,550 Erste Bank der Oesterreichischen Sparkassen AG (l) 574,778 41,654,949 Royal Bank of Scotland Group PLC 6,888,955 79,807,074 Standard Bank Group Ltd. 1,672,330 24,482,208 Standard Chartered PLC 1,718,302 53,013,800 Sumitomo Mitsui Financial Group, Inc. 9,301 73,482,839 Unibanco - Uniao de Bancos Brasileiros S.A., GDR 329,640 36,781,231 UniCredito Italiano S.p.A. (l) 8,648,990 73,993,294 --------------- $ 683,144,631 - ---------------------------------------------------------------------------------------------------- Metals & Mining - 3.9% - ---------------------------------------------------------------------------------------------------- BHP Billiton PLC 4,212,500 $ 123,934,784 Steel Authority of India Ltd. 15,001,435 61,804,077 --------------- $ 185,738,861 - ---------------------------------------------------------------------------------------------------- Natural Gas - Distribution - 0.9% - ---------------------------------------------------------------------------------------------------- Gaz de France (l) 437,061 $ 21,914,237 Tokyo Gas Co. Ltd. (l) 4,241,390 21,057,715 --------------- $ 42,971,952 - ---------------------------------------------------------------------------------------------------- Oil Services - 0.5% - ---------------------------------------------------------------------------------------------------- Saipem S.p.A 649,830 $ 24,312,901 - ---------------------------------------------------------------------------------------------------- Other Banks & Diversified Financials - 7.9% - ---------------------------------------------------------------------------------------------------- Aeon Credit Service Co. Ltd. 1,854,700 $ 22,836,439 Anglo Irish Bank Corp. PLC 1,223,800 22,910,452 Bank of Cyprus Public Co. Ltd. 1,168,516 19,519,182 CSU Cardsystem S.A. (a) 1,538,540 6,274,953 Hana Financial Group, Inc. 674,100 31,899,856 HSBC Holdings PLC 5,039,916 91,161,980 Macquarie Bank Ltd. (l) 610,939 36,597,943 Sapporo Hokuyo Holdings, Inc. 1,803 19,304,235 UBS AG 1,508,687 78,675,011 Unione di Banche Italiane Scpa 1,970,775 50,373,991 --------------- $ 379,554,042 - ---------------------------------------------------------------------------------------------------- Pharmaceuticals - 6.3% - ---------------------------------------------------------------------------------------------------- Astellas Pharma, Inc. 758,600 $ 35,174,045 Bayer AG (l) 650,290 51,318,282 GlaxoSmithKline PLC 1,912,640 49,946,034 Novartis AG (l) 1,628,130 85,914,483 Roche Holding AG 451,390 78,463,621 --------------- $ 300,816,465 - ---------------------------------------------------------------------------------------------------- Precious Metals & Minerals - 0.2% - ---------------------------------------------------------------------------------------------------- Paladin Resources Ltd. (a) 2,015,683 $ 9,982,739 - ---------------------------------------------------------------------------------------------------- Railroad & Shipping - 1.1% - ---------------------------------------------------------------------------------------------------- East Japan Railway Co. 6,319 $ 50,359,945 - ---------------------------------------------------------------------------------------------------- Real Estate - 0.4% - ---------------------------------------------------------------------------------------------------- Hypo Real Estate Holding AG (l) 387,500 $ 21,277,139 - ---------------------------------------------------------------------------------------------------- Specialty Chemicals - 2.2% - ---------------------------------------------------------------------------------------------------- Linde AG (l) 896,730 $ 105,257,600 - ---------------------------------------------------------------------------------------------------- Specialty Stores - 1.7% - ---------------------------------------------------------------------------------------------------- Fast Retailing Co. Ltd. (l) 726,000 $ 42,563,917 NEXT PLC 970,740 37,799,252 --------------- $ 80,363,169 - ---------------------------------------------------------------------------------------------------- Telecommunications - Wireless - 3.0% - ---------------------------------------------------------------------------------------------------- America Movil S.A.B. de C.V., "L", ADR 396,030 $ 23,943,974 Philippine Long Distance Telephone Co. 319,550 18,229,593 Rogers Communications, Inc., "B" 341,330 15,523,235 Vodafone Group PLC 26,916,610 86,735,153 --------------- $ 144,431,955 - ---------------------------------------------------------------------------------------------------- Telephone Services - 2.6% - ---------------------------------------------------------------------------------------------------- Hellenic Telecommunications Organization S.A 582,930 $ 19,061,810 Telefonica S.A. (l) 2,590,530 64,309,256 Telenor A.S.A 1,302,840 24,034,751 TELUS Corp. 361,970 19,162,109 --------------- $ 126,567,926 - ---------------------------------------------------------------------------------------------------- Trucking - 0.5% - ---------------------------------------------------------------------------------------------------- TNT N.V. (l) 549,610 $ 23,214,151 - ---------------------------------------------------------------------------------------------------- Utilities - Electric Power - 3.0% - ---------------------------------------------------------------------------------------------------- E.ON AG (l) 709,510 $ 119,050,006 SUEZ S.A. (l) 465,258 26,459,570 --------------- $ 145,509,576 - ---------------------------------------------------------------------------------------------------- TOTAL COMMON STOCKS (IDENTIFIED COST, $4,116,751,341) $ 4,682,671,128 - ---------------------------------------------------------------------------------------------------- Short-Term Obligations - 0.6% (y) - ---------------------------------------------------------------------------------------------------- Abbey National North America LLC, 5.313%, due 9/04/07 $ 2,910,000 $ 2,908,712 American Express Credit Corp., 5.18%, due 9/04/07 23,784,000 23,773,733 Citigroup Funding, Inc., 5.25%, due 9/04/07 3,049,000 3,047,666 - ---------------------------------------------------------------------------------------------------- TOTAL SHORT-TERM OBLIGATIONS, AT AMORTIZED COST AND VALUE $ 29,730,111 - ---------------------------------------------------------------------------------------------------- Repurchase Agreements - 0.1% - ---------------------------------------------------------------------------------------------------- Merrill Lynch, 5.3%, dated 8/31/07, due 9/04/07, total to be received $1,260,742 (secured by U.S. Treasury and Federal Agency obligations and Mortgage Backed securities in a jointly traded account), at Cost $ 1,260,000 $ 1,260,000 - ---------------------------------------------------------------------------------------------------- Collateral for Securities Loaned - 11.6% - ---------------------------------------------------------------------------------------------------- Navigator Securities Lending Prime Portfolio, at Cost and Net Asset Value 554,955,445 $ 554,955,445 - ---------------------------------------------------------------------------------------------------- TOTAL INVESTMENTS (IDENTIFIED COST, $4,702,696,897) (k) $ 5,268,616,684 - ---------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - (10.2)% (486,136,912) - ---------------------------------------------------------------------------------------------------- NET ASSETS - 100.0% $ 4,782,479,772 - ---------------------------------------------------------------------------------------------------- (a) Non-income producing security. (k) As of August 31, 2007, the fund had one security that was fair valued, aggregating $27,298,662 and 0.52% of market value, in accordance with the policies adopted by the Board of Trustees. (l) All or a portion of this security is on loan. (y) The rate shown represents an annualized yield at time of purchase. The following abbreviations are used in this report and are defined: ADR American Depository Receipt GDR Global Depository Receipt IPS International Preference Stock SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENT OF ASSETS AND LIABILITIES At 8/31/07 This statement represents your fund's balance sheet, which details the assets and liabilities comprising the total value of the fund. ASSETS - ------------------------------------------------------------------------------------------------------- Investments, at value, including $532,709,773 of securities on loan (identified cost, $4,702,696,897) $5,268,616,684 Cash 361 Foreign currency, at value (identified cost, $22,599,742) 22,411,042 Receivable for investments sold 61,196,738 Receivable for fund shares sold 20,468,301 Interest and dividends receivable 11,187,024 Other Assets 17,413 - ------------------------------------------------------------------------------------------------------- Total assets $5,383,897,563 - ------------------------------------------------------------------------------------------------------- LIABILITIES - ------------------------------------------------------------------------------------------------------- Payable for investments purchased $38,736,715 Payable for fund shares reacquired 2,189,708 Collateral for securities loaned, at value (c) 554,955,445 Payable to affiliates Management fee 196,623 Shareholder servicing costs 1,488,934 Distribution and service fees 59,346 Administrative services fee 3,077 Program manager fees 49 Retirement plan administration and services fees 1,942 Payable for independent trustees' compensation 35,957 Accrued expenses and other liabilities 3,749,995 - ------------------------------------------------------------------------------------------------------- Total liabilities $601,417,791 - ------------------------------------------------------------------------------------------------------- Net assets $4,782,479,772 - ------------------------------------------------------------------------------------------------------- NET ASSETS CONSIST OF - ------------------------------------------------------------------------------------------------------- Paid-in capital $3,774,698,649 Unrealized appreciation (depreciation) on investments and translation of assets and liabilities in foreign currencies (net of $2,593,963 deferred country tax) 563,041,748 Accumulated net realized gain (loss) on investments and foreign currency transactions 388,477,611 Undistributed net investment income 56,261,764 - ------------------------------------------------------------------------------------------------------- Net assets $4,782,479,772 - ------------------------------------------------------------------------------------------------------- Shares of beneficial interest outstanding 230,716,228 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class A shares: - ------------------------------------------------------------------------------------------------------- Net assets $1,813,832,587 Shares outstanding 88,210,476 - ------------------------------------------------------------------------------------------------------- Net asset value per share $20.56 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25Xnet asset value per share) $21.81 - ------------------------------------------------------------------------------------------------------- Class B shares - ------------------------------------------------------------------------------------------------------- Net assets $185,669,682 Shares outstanding 9,466,770 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $19.61 - ------------------------------------------------------------------------------------------------------- Class C shares: - ------------------------------------------------------------------------------------------------------- Net assets $200,490,960 Shares outstanding 10,270,031 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $19.52 - ------------------------------------------------------------------------------------------------------- Class I shares - ------------------------------------------------------------------------------------------------------- Net assets $2,210,257,207 Shares outstanding 104,565,108 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $21.14 - ------------------------------------------------------------------------------------------------------- Class W shares - ------------------------------------------------------------------------------------------------------- Net assets $10,272,310 Shares outstanding 499,480 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $20.57 - ------------------------------------------------------------------------------------------------------- Class R shares - ------------------------------------------------------------------------------------------------------- Net assets $69,152,087 Shares outstanding 3,392,071 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $20.39 - ------------------------------------------------------------------------------------------------------- Class R1 shares - ------------------------------------------------------------------------------------------------------- Net assets $5,440,766 Shares outstanding 280,741 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $19.38 - ------------------------------------------------------------------------------------------------------- Class R2 shares - ------------------------------------------------------------------------------------------------------- Net assets $5,072,936 Shares outstanding 260,238 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $19.49 - ------------------------------------------------------------------------------------------------------- Class R3 shares - ------------------------------------------------------------------------------------------------------- Net assets $36,143,039 Shares outstanding 1,794,813 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $20.14 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class R4 shares - ------------------------------------------------------------------------------------------------------- Net assets $64,331,647 Shares outstanding 3,143,206 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $20.47 - ------------------------------------------------------------------------------------------------------- Class R5 shares - ------------------------------------------------------------------------------------------------------- Net assets $178,238,229 Shares outstanding 8,653,404 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $20.60 - ------------------------------------------------------------------------------------------------------- Class 529A shares - ------------------------------------------------------------------------------------------------------- Net assets $2,059,634 Shares outstanding 101,247 - ------------------------------------------------------------------------------------------------------- Net asset value per share $20.34 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25Xnet asset value per share) $21.58 - ------------------------------------------------------------------------------------------------------- Class 529B shares - ------------------------------------------------------------------------------------------------------- Net assets $581,070 Shares outstanding 30,092 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $19.31 - ------------------------------------------------------------------------------------------------------- Class 529C shares - ------------------------------------------------------------------------------------------------------- Net assets $937,618 Shares outstanding 48,551 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $19.31 - ------------------------------------------------------------------------------------------------------- On sales of $50,000 or more, the offering prices 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. (c) Non-cash collateral not included. SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENT OF OPERATIONS Year ended 8/31/07 This statement describes how much your fund earned in investment income and accrued in expenses. It also describes any gains and/or losses generated by fund operations. NET INVESTMENT INCOME - ------------------------------------------------------------------------------------------------------ Income Dividends $116,508,340 Interest 5,750,086 Foreign taxes withheld (9,976,587) - ------------------------------------------------------------------------------------------------------ Total investment income $112,281,839 - ------------------------------------------------------------------------------------------------------ Expenses Management fee $32,997,482 Distribution and service fees 10,268,188 Program manager fees 8,155 Shareholder servicing costs 5,613,018 Administrative services fee 597,392 Retirement plan administration and services fees 275,324 Independent trustees' compensation 64,069 Custodian fee 2,373,094 Shareholder communications 203,730 Auditing fees 50,587 Legal fees 64,506 Miscellaneous 483,320 - ------------------------------------------------------------------------------------------------------ Total expenses $52,998,865 - ------------------------------------------------------------------------------------------------------ Fees paid indirectly (137,265) Reduction of expenses by investment adviser (34,554) - ------------------------------------------------------------------------------------------------------ Net expenses $52,827,046 - ------------------------------------------------------------------------------------------------------ Net investment income $59,454,793 - ------------------------------------------------------------------------------------------------------ REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS - ------------------------------------------------------------------------------------------------------ Realized gain (loss) (identified cost basis) Investment transactions (net of $9,030 country tax) $521,480,087 Foreign currency transactions (2,212,799) - ------------------------------------------------------------------------------------------------------ Net realized gain (loss) on investments and foreign currency transactions $519,267,288 - ------------------------------------------------------------------------------------------------------ Change in unrealized appreciation (depreciation) Investments (net of $2,593,963 increase in deferred country tax) $92,107,788 Translation of assets and liabilities in foreign currencies (284,270) - ------------------------------------------------------------------------------------------------------ Net unrealized gain (loss) on investments and foreign currency translation $91,823,518 - ------------------------------------------------------------------------------------------------------ Net realized and unrealized gain (loss) on investments and foreign currency $611,090,806 - ------------------------------------------------------------------------------------------------------ Change in net assets from operations $670,545,599 - ------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENTS OF CHANGES IN NET ASSETS These statements describe the increases and/or decreases in net assets resulting from operations, any distributions, and any shareholder transactions. YEARS ENDED 8/31 ---------------------------------------- 2007 2006 CHANGE IN NET ASSETS FROM OPERATIONS - ------------------------------------------------------------------------------------------------------- Net investment income $59,454,793 $30,991,305 Net realized gain (loss) on investments and foreign currency transactions 519,267,288 379,594,014 Net unrealized gain (loss) on investments and foreign currency translation 91,823,518 209,290,585 - ------------------------------------------------------------------------------------------------------- Change in net assets from operations $670,545,599 $619,875,904 - ------------------------------------------------------------------------------------------------------- DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------- From net investment income Class A $(16,967,603) $(7,372,365) Class B (1,072,793) (226,370) Class C (1,096,339) (254,257) Class I (24,753,020) (9,060,373) Class W (24,752) -- Class R (787,598) (303,000) Class R1 (19,857) (2,858) Class R2 (14,104) (1,155) Class R3 (173,134) (29,271) Class R4 (225,637) (1,034) Class R5 (2,054,416) (523) Class 529A (17,590) (4,962) Class 529B (2,810) (80) Class 529C (3,613) (10) Statements of Changes in Net Assets - continued From net realized gain on investments and foreign currency transactions Class A $(141,613,840) $(80,787,062) Class B (19,000,322) (12,159,865) Class C (17,352,910) (9,704,848) Class I (163,196,758) (70,748,663) Class W (166,668) -- Class R (7,397,422) (3,873,527) Class R1 (244,118) (33,799) Class R2 (125,262) (13,584) Class R3 (1,606,783) (346,752) Class R4 (1,723,640) (9,270) Class R5 (14,271,300) (4,369) Class 529A (171,280) (70,615) Class 529B (44,384) (15,904) Class 529C (75,790) (39,146) - ------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(414,203,743) $(195,063,662) - ------------------------------------------------------------------------------------------------------- Change in net assets from fund share transactions $1,060,147,793 $931,454,179 - ------------------------------------------------------------------------------------------------------- Total change in net assets $1,316,489,649 $1,356,266,421 - ------------------------------------------------------------------------------------------------------- NET ASSETS - ------------------------------------------------------------------------------------------------------- At beginning of period 3,465,990,123 2,109,723,702 At end of period (including undistributed net investment income of $56,261,764 and $44,576,374, respectively) $4,782,479,772 $3,465,990,123 - ------------------------------------------------------------------------------------------------------- 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 life of a particular share class, if shorter). 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 share class (assuming reinvestment of all distributions) held for the entire period. CLASS A YEARS ENDED 8/31 ---------------------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $19.44 $16.65 $14.25 $11.53 $10.78 - --------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.26 $0.19 $0.12 $0.10 $0.04 Net realized and unrealized gain (loss) on investments and foreign currency 3.03 4.08 3.04 2.63 0.71 - --------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.29 $4.27 $3.16 $2.73 $0.75 - --------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.23) $(0.12) $(0.08) $(0.01) $-- From net realized gain on investments and foreign currency transactions (1.94) (1.36) (0.68) -- -- - --------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(2.17) $(1.48) $(0.76) $(0.01) $-- - --------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $20.56 $19.44 $16.65 $14.25 $11.53 - --------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 17.82 27.18 22.67 23.65 6.96 - --------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.34 1.43 1.52 1.61 1.80 Expenses after expense reductions (f) 1.34 1.43 1.55(e) 1.67(e) 1.75 Net investment income 1.28 1.06 0.80 0.75 0.36 Portfolio turnover 66 85 79 102 96 Net assets at end of period (000 Omitted) $1,813,833 $1,344,754 $958,878 $593,574 $387,732 - --------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS B YEARS ENDED 8/31 --------------------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $18.63 $16.02 $13.76 $11.19 $10.54 - ------------------------------------------------------------------------------------------------------------------------------ INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------------ Net investment income (loss) (d) $0.11 $0.07 $0.01 $0.02 $(0.03) Net realized and unrealized gain (loss) on investments and foreign currency 2.92 3.93 2.93 2.55 0.68 - ------------------------------------------------------------------------------------------------------------------------------ Total from investment operations $3.03 $4.00 $2.94 $2.57 $0.65 - ------------------------------------------------------------------------------------------------------------------------------ LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------------ From net investment income $(0.11) $(0.03) $(0.00)(w) $-- $-- From net realized gain on investments and foreign currency transactions (1.94) (1.36) (0.68) -- -- - ------------------------------------------------------------------------------------------------------------------------------ Total distributions declared to shareholders $(2.05) $(1.39) $(0.68) $-- $-- - ------------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $19.61 $18.63 $16.02 $13.76 $11.19 - ------------------------------------------------------------------------------------------------------------------------------ Total return (%) (r)(s)(t) 17.08 26.36 21.77 22.97 6.17 - ------------------------------------------------------------------------------------------------------------------------------ RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------------ Expenses before expense reductions (f) 1.99 2.08 2.17 2.25 2.45 Expenses after expense reductions (f) 1.99 2.08 2.20(e) 2.31(e) 2.40 Net investment income (loss) 0.55 0.40 0.08 0.12 (0.32) Portfolio turnover 66 85 79 102 96 Net assets at end of period (000 Omitted) $185,670 $184,341 $141,515 $116,165 $88,177 - ------------------------------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS C YEARS ENDED 8/31 --------------------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $18.57 $15.98 $13.73 $11.17 $10.52 - ------------------------------------------------------------------------------------------------------------------------------ INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------------ Net investment income (loss) (d) $0.12 $0.07 $0.02 $0.02 $(0.03) Net realized and unrealized gain (loss) on investments and foreign currency 2.89 3.92 2.92 2.54 0.68 - ------------------------------------------------------------------------------------------------------------------------------ Total from investment operations $3.01 $3.99 $2.94 $2.56 $0.65 - ------------------------------------------------------------------------------------------------------------------------------ LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------------ From net investment income $(0.12) $(0.04) $(0.01) $-- $-- From net realized gain on investments and foreign currency transactions (1.94) (1.36) (0.68) -- -- - ------------------------------------------------------------------------------------------------------------------------------ Total distributions declared to shareholders $(2.06) $(1.40) $(0.69) $-- $-- - ------------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $19.52 $18.57 $15.98 $13.73 $11.17 - ------------------------------------------------------------------------------------------------------------------------------ Total return (%) (r)(s)(t) 17.05 26.38 21.84 22.92 6.18 - ------------------------------------------------------------------------------------------------------------------------------ RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------------ Expenses before expense reductions (f) 1.99 2.08 2.17 2.25 2.45 Expenses after expense reductions (f) 1.99 2.08 2.20(e) 2.31(e) 2.40 Net investment income (loss) 0.62 0.41 0.13 0.15 (0.32) Portfolio turnover 66 85 79 102 96 Net assets at end of period (000 Omitted) $200,491 $158,564 $109,347 $75,580 $46,022 - ------------------------------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS I YEARS ENDED 8/31 ------------------------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $19.92 $17.02 $14.54 $11.75 $10.95 - ------------------------------------------------------------------------------------------------------------------------------ INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------------ Net investment income (d) $0.34 $0.26 $0.19 $0.16 $0.10 Net realized and unrealized gain (loss) on investments and foreign currency 3.11 4.17 3.10 2.66 0.70 - ------------------------------------------------------------------------------------------------------------------------------ Total from investment operations $3.45 $4.43 $3.29 $2.82 $0.80 - ------------------------------------------------------------------------------------------------------------------------------ LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------------ From net investment income $(0.29) $(0.17) $(0.13) $(0.03) $-- From net realized gain on investments and foreign currency transactions (1.94) (1.36) (0.68) -- -- - ------------------------------------------------------------------------------------------------------------------------------ Total distributions declared to shareholders $(2.23) $(1.53) $(0.81) $(0.03) $-- - ------------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $21.14 $19.92 $17.02 $14.54 $11.75 - ------------------------------------------------------------------------------------------------------------------------------ Total return (%) (r)(s) 18.27 27.61 23.09 24.05 7.31 - ------------------------------------------------------------------------------------------------------------------------------ RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------------ Expenses before expense reductions (f) 0.99 1.08 1.17 1.26 1.45 Expenses after expense reductions (f) 0.99 1.08 1.20(e) 1.32(e) 1.40 Net investment income 1.64 1.41 1.18 1.18 0.95 Portfolio turnover 66 85 79 102 96 Net assets at end of period (000 Omitted) $2,210,257 $1,565,596 $851,484 $469,181 $232,328 - ------------------------------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS W YEARS ENDED 8/31 ----------------------------- 2007 2006(i) Net asset value, beginning of period $19.45 $19.54 - ----------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------------- Net investment income (d) $0.35 $0.04 Net realized and unrealized gain (loss) on investments and foreign currency 3.00 (1.13)(g) - ----------------------------------------------------------------------------------------------------------- Total from investment operations $3.35 $(0.09) - ----------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------- From net investment income $(0.29) $-- From net realized gain on investments and foreign currency transactions (1.94) -- - ----------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(2.23) $-- - ----------------------------------------------------------------------------------------------------------- Net asset value, end of period $20.57 $19.45 - ----------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 18.15 (0.46)(n) - ----------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.10 1.20(a) Expenses after expense reductions (f) 1.10 1.20(a) Net investment income 1.78 1.02(a) Portfolio turnover 66 85 Net assets at end of period (000 Omitted) $10,272 $1,033 - ----------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R YEARS ENDED 8/31 ---------------------------------------------------------------------------- 2007 2006 2005 2004 2003(i) Net asset value, beginning of period $19.29 $16.54 $14.20 $11.52 $10.32 - ---------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ---------------------------------------------------------------------------------------------------------------------------- Net investment income (loss) (d) $0.22 $0.17 $0.11 $0.09 $(0.01) Net realized and unrealized gain (loss) on investments and foreign currency 3.03 4.05 3.01 2.61 1.21 - ---------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.25 $4.22 $3.12 $2.70 $1.20 - ---------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.21) $(0.11) $(0.10) $(0.02) $-- From net realized gain on investments and foreign currency transactions (1.94) (1.36) (0.68) -- -- - ---------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(2.15) $(1.47) $(0.78) $(0.02) $-- - ---------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $20.39 $19.29 $16.54 $14.20 $11.52 - ---------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 17.70 26.98 22.40 23.50 11.63(n) - ---------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.49 1.58 1.66 1.75 1.95(a) Expenses after expense reductions (f) 1.49 1.58 1.69(e) 1.81(e) 1.90(a) Net investment income (loss) 1.11 0.95 0.73 0.69 (0.09)(a) Portfolio turnover 66 85 79 102 96 Net assets at end of period (000 Omitted) $69,152 $69,507 $44,300 $19,596 $4,810 - ---------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R1 YEARS ENDED 8/31 ----------------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $18.49 $16.02 $15.07 - ----------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.12 $0.11 $0.03 Net realized and unrealized gain (loss) on investments and foreign currency 2.87 3.84 0.92 - ----------------------------------------------------------------------------------------------------------------- Total from investment operations $2.99 $3.95 $0.95 - ----------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------- From net investment income $(0.16) $(0.12) $-- From net realized gain on investments and foreign currency transactions (1.94) (1.36) -- - ----------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(2.10) $(1.48) $-- - ----------------------------------------------------------------------------------------------------------------- Net asset value, end of period $19.38 $18.49 $16.02 - ----------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 17.00 26.12 6.30(n) - ----------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 2.14 2.26 2.36(a) Expenses after expense reductions (f) 2.09 2.16 2.39(a)(e) Net investment income 0.64 0.65 0.46(a) Portfolio turnover 66 85 79 Net assets at end of period (000 Omitted) $5,441 $2,027 $171 - ----------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R2 YEARS ENDED 8/31 ----------------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $18.59 $16.04 $15.07 - ----------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.19 $0.14 $0.06 Net realized and unrealized gain (loss) on investments and foreign currency 2.87 3.89 0.91 - ----------------------------------------------------------------------------------------------------------------- Total from investment operations $3.06 $4.03 $0.97 - ----------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------- From net investment income $(0.22) $(0.12) $-- From net realized gain on investments and foreign currency transactions (1.94) (1.36) -- - ----------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(2.16) $(1.48) $-- - ----------------------------------------------------------------------------------------------------------------- Net asset value, end of period $19.49 $18.59 $16.04 - ----------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 17.34 26.63 6.44(n) - ----------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.80 1.96 2.04(a) Expenses after expense reductions (f) 1.75 1.82 2.07(a)(e) Net investment income 1.03 0.83 1.12(a) Portfolio turnover 66 85 79 Net assets at end of period (000 Omitted) $5,073 $1,021 $178 - ----------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R3 YEARS ENDED 8/31 ----------------------------------------------------------------- 2007 2006 2005 2004(i) Net asset value, beginning of period $19.11 $16.43 $14.16 $12.71 - -------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - -------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.22 $0.15 $0.11 $0.02 Net realized and unrealized gain (loss) on investments and foreign currency 2.96 4.01 2.96 1.46 - -------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.18 $4.16 $3.07 $1.48 - -------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.21) $(0.12) $(0.12) $(0.03) From net realized gain on investments and foreign currency transactions (1.94) (1.36) (0.68) -- - -------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(2.15) $(1.48) $(0.80) $(0.03) - -------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $20.14 $19.11 $16.43 $14.16 - -------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 17.50 26.79 22.13 11.69(n) - -------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.69 1.82 1.92 2.01(a) Expenses after expense reductions (f) 1.64 1.73 1.95(e) 2.07(a)(e) Net investment income 1.13 0.83 0.74 0.18(a) Portfolio turnover 66 85 79 102 Net assets at end of period (000 Omitted) $36,143 $13,799 $2,357 $431 - -------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R4 YEARS ENDED 8/31 ----------------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $19.39 $16.65 $15.62 - ----------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.31 $0.25 $0.12 Net realized and unrealized gain (loss) on investments and foreign currency 2.96 4.00 0.91 - ----------------------------------------------------------------------------------------------------------------- Total from investment operations $3.27 $4.25 $1.03 - ----------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------- From net investment income $(0.25) $(0.15) $-- From net realized gain on investments and foreign currency transactions (1.94) (1.36) -- - ----------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(2.19) $(1.51) $-- - ----------------------------------------------------------------------------------------------------------------- Net asset value, end of period $20.47 $19.39 $16.65 - ----------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 17.78 27.07 6.59(n) - ----------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.39 1.47 1.55(a) Expenses after expense reductions (f) 1.39 1.47 1.58(a)(e) Net investment income 1.54 1.42 1.79(a) Portfolio turnover 66 85 79 Net assets at end of period (000 Omitted) $64,332 $12,796 $53 - ----------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R5 YEARS ENDED 8/31 ------------------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $19.47 $16.67 $15.62 - ----------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.32 $0.33 $0.14 Net realized and unrealized gain (loss) on investments and foreign currency 3.03 3.99 0.91 - ----------------------------------------------------------------------------------------------------------------- Total from investment operations $3.35 $4.32 $1.05 - ----------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------- From net investment income $(0.28) $(0.16) $-- From net realized gain on investments and foreign currency transactions (1.94) (1.36) -- - ----------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(2.22) $(1.52) $-- - ----------------------------------------------------------------------------------------------------------------- Net asset value, end of period $20.60 $19.47 $16.67 - ----------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 18.13 27.50 6.72(n) - ----------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.09 1.17 1.25(a) Expenses after expense reductions (f) 1.09 1.17 1.28(a)(e) Net investment income 1.56 1.82 2.09(a) Portfolio turnover 66 85 79 Net assets at end of period (000 Omitted) $178,238 $109,993 $53 - ----------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529A YEARS ENDED 8/31 ----------------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $19.27 $16.53 $14.18 $11.50 $10.78 - ------------------------------------------------------------------------------------------------------------------------------ INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------------ Net investment income (d) $0.20 $0.16 $0.10 $0.08 $0.03 Net realized and unrealized gain (loss) on investments and foreign currency 3.01 4.04 3.01 2.61 0.69 - ------------------------------------------------------------------------------------------------------------------------------ Total from investment operations $3.21 $4.20 $3.11 $2.69 $0.72 - ------------------------------------------------------------------------------------------------------------------------------ LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------------ From net investment income $(0.20) $(0.10) $(0.08) $(0.01) $-- From net realized gain on investments and foreign currency transactions (1.94) (1.36) (0.68) -- -- - ------------------------------------------------------------------------------------------------------------------------------ Total distributions declared to shareholders $(2.14) $(1.46) $(0.76) $(0.01) $-- - ------------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $20.34 $19.27 $16.53 $14.18 $11.50 - ------------------------------------------------------------------------------------------------------------------------------ Total return (%) (r)(s)(t) 17.51 26.86 22.35 23.39 6.68 - ------------------------------------------------------------------------------------------------------------------------------ RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------------ Expenses before expense reductions (f) 1.59 1.68 1.76 1.85 2.05 Expenses after expense reductions (f) 1.59 1.68 1.79(e) 1.91(e) 2.00 Net investment income 1.01 0.88 0.65 0.62 0.30 Portfolio turnover 66 85 79 102 96 Net assets at end of period (000 Omitted) $2,060 $1,552 $760 $332 $112 - ------------------------------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529B YEARS ENDED 8/31 ------------------------------------------------------------------------------ 2007 2006 2005 2004 2003 Net asset value, beginning of period $18.43 $15.88 $13.68 $11.17 $10.54 - ------------------------------------------------------------------------------------------------------------------------------ INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------------ Net investment income (loss) (d) $0.08 $0.03 $(0.02) $(0.00)(w) $(0.05) Net realized and unrealized gain (loss) on investments and foreign currency 2.86 3.89 2.91 2.51 0.68 - ------------------------------------------------------------------------------------------------------------------------------ Total from investment operations $2.94 $3.92 $2.89 $2.51 $0.63 - ------------------------------------------------------------------------------------------------------------------------------ LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------------ From net investment income $(0.12) $(0.01) $(0.01) $-- $-- From net realized gain on investments and foreign currency transactions (1.94) (1.36) (0.68) -- -- - ------------------------------------------------------------------------------------------------------------------------------ Total distributions declared to shareholders $(2.06) $(1.37) $(0.69) $-- $-- - ------------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $19.31 $18.43 $15.88 $13.68 $11.17 - ------------------------------------------------------------------------------------------------------------------------------ Total return (%) (r)(s)(t) 16.78 26.06 21.54 22.47 5.98 - ------------------------------------------------------------------------------------------------------------------------------ RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------------ Expenses before expense reductions (f) 2.24 2.33 2.42 2.50 2.70 Expenses after expense reductions (f) 2.24 2.33 2.45(e) 2.56(e) 2.65 Net investment income (loss) 0.42 0.15 (0.13) (0.03) (0.43) Portfolio turnover 66 85 79 102 96 Net assets at end of period (000 Omitted) $581 $356 $174 $110 $41 - ------------------------------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529C YEARS ENDED 8/31 ------------------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $18.40 $15.86 $13.66 $11.14 $10.52 - ------------------------------------------------------------------------------------------------------------------------------ INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------------ Net investment income (loss) (d) $0.08 $0.03 $(0.01) $(0.00)(w) $(0.04) Net realized and unrealized gain (loss) on investments and foreign currency 2.86 3.87 2.90 2.52 0.66 - ------------------------------------------------------------------------------------------------------------------------------ Total from investment operations $2.94 $3.90 $2.89 $2.52 $0.62 - ------------------------------------------------------------------------------------------------------------------------------ LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------------ From net investment income $(0.09) $(0.00)(w) $(0.01) $-- $-- From net realized gain on investments and foreign currency transactions (1.94) (1.36) (0.68) -- -- - ------------------------------------------------------------------------------------------------------------------------------ Total distributions declared to shareholders $(2.03) $(1.36) $(0.69) $-- $-- - ------------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $19.31 $18.40 $15.86 $13.66 $11.14 - ------------------------------------------------------------------------------------------------------------------------------ Total return (%) (r)(s)(t) 16.79 25.98 21.53 22.62 5.89 - ------------------------------------------------------------------------------------------------------------------------------ RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------------ Expenses before expense reductions (f) 2.24 2.33 2.42 2.49 2.70 Expenses after expense reductions (f) 2.24 2.33 2.45(e) 2.55(e) 2.65 Net investment income (loss) 0.40 0.16 (0.07) (0.02) (0.36) Portfolio turnover 66 85 79 102 96 Net assets at end of period (000 Omitted) $938 $650 $454 $280 $81 - ------------------------------------------------------------------------------------------------------------------------------ Any redemption fees charged by the fund during the 2004 and 2005 fiscal years resulted in a per share impact of less than $0.01. (a) Annualized. (d) Per share data are based on average shares outstanding. (e) Ratio includes a reimbursement fee for expenses borne by MFS in prior years under the then existing expense reimbursement agreement. (f) Ratios do not reflect reductions from fees paid indirectly. (g) 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. (i) For the period from the class' inception, December 31, 2002 (Class R), October 31, 2003 (Class R3), April 1, 2005 (Classes R1, R2, R4, and R5) and May 1, 2006 (Class W) through the stated period end. (n) Not annualized. (r) Certain expenses have been reduced without which performance would have been lower. (s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. (t) Total returns do not include any applicable sales charges. (w) Per share amount was 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 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, including securities of emerging market issuers. 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. The markets of emerging markets countries are generally more volatile than the markets of developed countries with more mature economies. All of the risks of investing in foreign securities previously described are heightened when investing in emerging markets countries. INVESTMENT VALUATIONS - Equity securities, including restricted equity securities, are generally valued at the last sale or official closing price as reported by an independent pricing service on the market or exchange on which they are primarily traded. For securities for which there were no sales reported that day, equity securities are generally valued at the last quoted daily bid quotation as reported by an independent pricing service on the market or exchange on which they are primarily traded. For securities held short for which there were no sales reported for the day, the position is generally valued at the last quoted daily ask quotation as reported by an independent pricing service on the market or exchange on which such securities are primarily traded. Short-term instruments with a maturity at issuance of 60 days or less may be valued at amortized cost, which approximates market value. Open-end investment companies are generally valued at their net asset value per share. Securities and other assets generally valued on the basis of information from an independent pricing service may also be valued at a broker-dealer bid quotation. Values obtained from pricing services can utilize both dealer-supplied valuations and electronic data processing techniques, which take into account factors such as institutional-size trading in similar groups of securities, yield, quality, coupon rate, maturity, type of issue, trading characteristics, and other market data. The values of foreign securities and other assets and liabilities expressed in foreign currencies are converted to U.S. dollars using the mean of bid and asked prices for rates reported by an independent pricing service. The Board of Trustees has delegated primary responsibility for determining or causing to be determined the value of the fund's investments (including any fair valuation) to the adviser pursuant to valuation policies and procedures approved by the Board. If the adviser determines that reliable market quotations are not readily available, investments are valued at fair value as determined in good faith by the adviser in accordance with such procedures under the oversight of the Board of Trustees. Under the fund's valuation policies and procedures, market quotations are not considered to be readily available for many types of debt instruments and certain types of derivatives. These investments are generally valued at fair value based on information from independent pricing services. In addition, investments may be valued at fair value if the adviser determines that an investment's value has been materially affected by events occurring after the close of the exchange or market on which the investment is principally traded (such as foreign exchange or market) and prior to the determination of the fund's net asset value, or after the halting of trading of a specific security where trading does not resume prior to the close of the exchange or market on which the security is principally traded. Events that occur on a frequent basis after foreign markets close (such as developments in foreign markets and significant movements in the U.S. markets) and prior to the determination of the fund's net asset value may be deemed to have a material affect on the value of securities traded in foreign markets. Accordingly, the fund's foreign equity securities may often be valued at fair value. The adviser may rely on independent pricing services or other information (such as the correlation with price movements of similar securities in the same or other markets; the type, cost and investment characteristics of the security; the business and financial condition of the issuer; and trading and other market data) to assist in determining whether to fair value and at what value to fair value an investment. The value of an investment for purposes of calculating the fund's net asset value can differ depending on the source and method used to determine value. When fair valuation is used, the value of investments used to determine the fund's net asset value may differ from quoted or published prices for the same investments. In September 2006, FASB Statement No. 157, Fair Value Measurements (the "Statement") was issued, and is effective for fiscal years beginning after November 15, 2007 and for all interim periods within those fiscal years. This Statement provides a single definition of fair value, a hierarchy for measuring fair value and expanded disclosures about fair value measurements. Management is evaluating the application of the Statement to the fund, and believes the impact will be limited to expanded disclosures resulting from the adoption of this Statement in the fund's financial statements. 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 and other funds managed by 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. Net 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, 2007, the value of securities loaned was $532,709,773. These loans were collateralized by cash of $554,955,445 and U.S. Treasury obligations of $2,070,662. INDEMNIFICATIONS - Under the fund's organizational documents, its officers and trustees may be indemnified against certain liabilities and expenses arising out of the performance of their duties to the fund. Additionally, in the normal course of business, the fund enters into agreements with service providers that may contain indemnification clauses. The fund's maximum exposure under these agreements is unknown as this would involve future claims that may be made against the fund that have not yet occurred. 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. Certain dividends from foreign securities will be recorded when the fund is informed of the dividend if such information is obtained subsequent to 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. Any proceeds received from litigation involving portfolio holdings are reflected in the Statement of Operations in realized gain/loss if the security has been disposed of by the fund or in unrealized gain/loss if the security is still held by the fund. Any other proceeds from litigation not related to portfolio holdings are reflected as other income in the Statement of Operations. 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. This amount, for the year ended August 31, 2007, is shown as a reduction of total expenses on the Statement of Operations. TAX MATTERS AND DISTRIBUTIONS - The fund intends to qualify as a regulated investment company, as defined under Subchapter M of the Internal Revenue Code, and to distribute all of its taxable income, including realized capital gains. Accordingly, no provision for federal income tax is required in the financial statements. Foreign taxes, if any, have been accrued by the fund in the accompanying financial statements. Distributions to shareholders are recorded on the ex-dividend date. Income and capital gain distributions are determined in accordance with income tax regulations, which may differ from U.S. generally accepted accounting principles. Certain capital accounts in the financial statements are periodically adjusted for permanent differences in order to reflect their tax character. These adjustments have no impact on net assets or net asset value per share. Temporary differences which arise from recognizing certain items of income, expense, gain or loss in different periods for financial statement and tax purposes will reverse at some time in the future. Distributions in excess of net investment income or net realized gains are temporary overdistributions for financial statement purposes resulting from differences in the recognition or classification of income or distributions for financial statement and tax purposes. Book/tax differences primarily relate to passive foreign investment companies, wash sale loss deferrals, foreign currency transactions, treating a portion of the proceeds from redemptions as a distribution for tax purposes, and foreign taxes. The tax character of distributions declared to shareholders is as follows: 8/31/07 8/31/06 Ordinary income (including any short-term capital gains) $214,389,394 $104,557,669 Long-term capital gain 199,814,349 90,505,993 - ------------------------------------------------------------------------- Total distributions $414,203,743 $195,063,662 The federal tax cost and the tax basis components of distributable earnings were as follows: AS OF 8/31/07 Cost of investments $4,706,611,804 --------------------------------------------------------------- Gross appreciation $686,757,855 Gross depreciation (124,752,975) --------------------------------------------------------------- Net unrealized appreciation (depreciation) $562,004,880 Undistributed ordinary income 197,395,067 Undistributed long-term capital gain 251,952,279 Other temporary differences (3,571,103) In June 2006, FASB Interpretation No. 48, Accounting for Uncertainty in Income Taxes (the "Interpretation") was issued, and is effective for fiscal years beginning after December 15, 2006 and is to be applied to all open tax years as of the effective date. On December 22, 2006, the SEC delayed the implementation of the Interpretation for regulated investment companies for an additional six months. This Interpretation prescribes a minimum threshold for financial statement recognition of the benefit of a tax position taken or expected to be taken in a tax return, and requires certain expanded disclosures. Management has evaluated the application of the Interpretation to the fund, and has determined that there is no impact resulting from the adoption of this Interpretation on the fund's financial statements. 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 management and related administrative services and facilities to the fund. 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, 2007 was equivalent to an annual effective rate of 0.77% of the fund's average daily net assets. The investment adviser has agreed in writing to pay 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 operating expenses do not exceed 0.40% annually of the fund's average daily net assets. This written agreement will continue through December 31, 2007 unless changed or rescinded by the fund's Board of Trustees. For the year ended August 31, 2007, the fund's actual operating expenses did not exceed the limit and therefore, the investment adviser did not pay any portion of the fund's expenses. DISTRIBUTOR - MFS Fund Distributors, Inc. (MFD), a wholly-owned subsidiary of MFS, as distributor, received $200,803 and $1,402 for the year ended August 31, 2007, 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 MFD and another component of the plan is a service fee paid to MFD. MFD may subsequently pay all, or a portion, of the distribution and/or service fees to financial intermediaries. Distribution Fee Plan Table: TOTAL ANNUAL DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE AND SERVICE FEE RATE FEE RATE PLAN (d) RATE (e) FEE Class A 0.10% 0.25% 0.35% 0.35% $5,737,906 Class B 0.75% 0.25% 1.00% 1.00% 1,970,268 Class C 0.75% 0.25% 1.00% 1.00% 1,898,198 Class W 0.10% -- 0.10% 0.10% 3,878 Class R 0.25% 0.25% 0.50% 0.50% 398,390 Class R1 0.50% 0.25% 0.75% 0.75% 24,312 Class R2 0.25% 0.25% 0.50% 0.50% 11,318 Class R3 0.25% 0.25% 0.50% 0.50% 118,618 Class R4 -- 0.25% 0.25% 0.25% 85,121 Class 529A 0.25% 0.25% 0.50% 0.35% 6,699 Class 529B 0.75% 0.25% 1.00% 1.00% 5,008 Class 529C 0.75% 0.25% 1.00% 1.00% 8,472 - --------------------------------------------------------------------------------------------------------------------- Total Distribution and Service Fees $10,268,188 (d) 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. (e) The annual effective rates represent actual fees incurred under the distribution plan for the year ended August 31, 2007 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 in effect and will be implemented on such date as the fund's Board of Trustees may determine. 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. All contingent deferred sales charges are paid to MFD and during the year ended August 31, 2007, were as follows: AMOUNT Class A $29,040 Class B 152,127 Class C 21,731 Class 529B 115 Class 529C 46 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% of the average daily net assets attributable to each 529 share class. The fee is based on average daily net assets and is currently established at 0.25% annually of average daily 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, 2007, were as follows: AMOUNT Class 529A $4,785 Class 529B 1,252 Class 529C 2,118 -------------------------------------------------- Total Program Manager Fees $8,155 SHAREHOLDER SERVICING AGENT - MFS Service Center, Inc. (MFSC), a wholly-owned subsidiary of MFS, receives a fee from the fund for its services as shareholder servicing agent calculated as a percentage of the average daily net assets of the fund as determined periodically under the supervision of the fund's Board of Trustees. For the year ended August 31, 2007, the fee was $2,589,679, which equated to 0.0604% annually of the fund's average daily net assets. MFSC also receives payment from the fund for out-of-pocket expenses, sub-accounting and other shareholder servicing costs which may be paid to affiliated and unaffiliated service providers. For the year ended August 31, 2007, these out-of-pocket expenses, sub-accounting and other shareholder servicing costs amounted to $2,546,684. The fund may also pay shareholder servicing related costs directly to non-related parties. Effective May 1, 2007, under a Special Servicing Agreement among MFS, each MFS fund which invests in other MFS funds ("MFS fund-of-funds") and each underlying fund in which a MFS fund-of-funds invests ("underlying funds"), each underlying fund may pay a portion of each MFS fund-of-fund's transfer agent-related expenses, including sub-accounting fees payable to financial intermediaries, to the extent such payments do not exceed the benefits realized or expected to be realized by the underlying fund from the investment in the underlying fund by the MFS fund-of-fund. For the year ended August 31, 2007, these costs for the fund amounted to $372,781 and are reflected in the shareholder servicing costs on the Statement of Operations. ADMINISTRATOR - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to the fund. Under an administrative services agreement, the fund partially reimburses MFS the costs incurred to provide these services. The fund is charged a fixed amount plus a fee based on average daily net assets. The fund's annual fixed amount is $17,500. The administrative services fee incurred for the year ended August 31, 2007 was equivalent to an annual effective rate of 0.0139% 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 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. MFS may subsequently pay all, or a portion, of the retirement plan administration and services fee to affiliated or unaffiliated third parties. For the year ended August 31, 2007, the fund paid MFS an annual retirement plan administration and services fee up to the following annual percentage rates of each class' average daily net assets: BEGINNING OF ANNUAL PERIOD THROUGH EFFECTIVE EFFECTIVE TOTAL 3/31/07 4/01/07 RATE (g) AMOUNT Class R1 0.45% 0.35% 0.35% $12,846 Class R2 0.40% 0.25% 0.25% 6,891 Class R3 0.25% 0.15% 0.15% 46,424 Class R4 0.15% 0.15% 0.15% 51,072 Class R5 0.10% 0.10% 0.10% 158,091 - ----------------------------------------------------------------------------------------------------------------- Total Retirement Plan Administration and Services Fees $275,324 (g) Prior to April 1, 2007, MFS had agreed in writing to waive a portion of the retirement plan administration and services fee equal to 0.10% for Class R1, 0.15% for Class R2, and 0.10% for Class R3 shares. This agreement was discontinued on March 31, 2007. On April 1, 2007, the annual retirement plan administration and services fee for Class R1, Class R2, and Class R3 shares was lowered to 0.35%, 0.25%, and 0.15%, respectively. For the year ended August 31, 2007, the waiver amounted to $13,571 and is reflected as a reduction of total expenses in the Statement of Operations. TRUSTEES' AND OFFICERS' 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 or officers of the fund who are also officers of the investment adviser, 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 certain retired independent trustees which resulted in a pension expense of $543. The fund also has an unfunded retirement benefit deferral plan for certain independent trustees which resulted in an expense of $6,007. Both amounts are included in independent trustees' compensation for the year ended August 31, 2007. The liability for deferred retirement benefits payable to certain independent trustees under both plans amounted to $35,604 at August 31, 2007, and is included in payable for independent 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. The funds can terminate the Agreement with Tarantino LLC at any time under the terms of the Agreement. For the year ended August 31, 2007, the fee paid to Tarantino LLC was $26,670. MFS has agreed to reimburse the fund for a portion of the payments made by the funds to Tarantino LLC in the amount of $20,983, 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. (4) PORTFOLIO SECURITIES Purchases and sales of investments, other than U.S. government securities, purchased option transactions, and short-term obligations, aggregated $3,414,972,380 and $2,778,158,270, respectively. (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 YEAR ENDED 8/31/07 8/31/06(i) SHARES AMOUNT SHARES AMOUNT Shares sold Class A 41,290,726 $828,064,496 30,630,255 $556,734,183 Class B 2,473,005 47,089,337 3,401,167 59,298,455 Class C 3,435,528 65,446,773 3,025,371 52,468,875 Class I 22,548,390 461,671,400 30,755,216 581,780,278 Class W 494,011 10,111,792 53,111 1,031,086 Class R 1,997,921 39,719,864 1,713,782 30,827,673 Class R1 338,647 6,374,881 118,411 2,100,359 Class R2 299,623 5,755,095 46,997 846,131 Class R3 2,178,813 42,475,221 805,222 14,237,540 Class R4 3,750,623 74,887,435 737,220 13,528,900 Class R5 5,937,198 122,889,097 6,785,761 117,544,808 Class 529A 22,711 448,508 35,512 640,671 Class 529B 9,906 186,302 7,849 136,554 Class 529C 17,209 324,653 7,149 123,841 - ------------------------------------------------------------------------------------------------------------- 84,794,311 $1,705,444,854 78,123,023 $1,431,299,354 Shares issued to shareholders in reinvestment of distributions Class A 5,693,646 $108,520,893 3,732,231 $62,253,599 Class B 925,952 16,907,887 649,122 10,424,911 Class C 693,004 12,598,814 441,721 7,067,535 Class I 9,490,387 185,442,163 4,619,694 78,765,784 Class W 9,678 184,179 - - Class R 395,201 7,477,210 234,859 3,891,575 Class R1 14,617 263,975 2,328 36,657 Class R2 7,691 139,366 922 14,739 Class R3 95,132 1,779,917 22,921 376,023 Class R4 102,687 1,948,996 619 10,304 Class R5 856,467 16,324,252 293 4,892 Class 529A 9,998 188,870 4,564 75,577 Class 529B 2,620 47,194 1,005 15,984 Class 529C 4,406 79,403 2,465 39,156 - ------------------------------------------------------------------------------------------------------------ 18,301,486 $351,903,119 9,712,744 $162,976,736 Shares reacquired Class A (27,955,365) $(564,150,425) (22,770,545) $(406,301,939) Class B (3,825,976) (73,747,481) (2,987,955) (52,111,572) Class C (2,398,809) (46,114,718) (1,768,974) (30,633,224) Class I (6,070,791) (124,341,917) (6,808,899) (127,967,564) Class W (57,320) (1,161,073) - - Class R (2,604,111) (52,324,973) (1,023,578) (18,415,220) Class R1 (182,138) (3,391,715) (21,804) (394,455) Class R2 (102,033) (1,918,796) (4,075) (70,219) Class R3 (1,201,203) (23,239,351) (249,484) (4,380,146) Class R4 (1,370,125) (27,115,497) (81,019) (1,516,299) Class R5 (3,790,821) (79,261,374) (1,138,695) (20,875,810) Class 529A (12,022) (238,045) (5,526) (98,083) Class 529B (1,755) (33,696) (463) (8,063) Class 529C (8,388) (161,119) (2,944) (49,317) - ------------------------------------------------------------------------------------------------------------- (49,580,857) $(997,200,180) (36,863,961) $(662,821,911) Net change Class A 19,029,007 $372,434,964 11,591,941 $212,685,843 Class B (427,019) (9,750,257) 1,062,334 17,611,794 Class C 1,729,723 31,930,869 1,698,118 28,903,186 Class I 25,967,986 522,771,646 28,566,011 532,578,498 Class W 446,369 9,134,898 53,111 1,031,086 Class R (210,989) (5,127,899) 925,063 16,304,028 Class R1 171,126 3,247,141 98,935 1,742,561 Class R2 205,281 3,975,665 43,844 790,651 Class R3 1,072,742 21,015,787 578,659 10,233,417 Class R4 2,483,185 49,720,934 656,820 12,022,905 Class R5 3,002,844 59,951,975 5,647,359 96,673,890 Class 529A 20,687 399,333 34,550 618,165 Class 529B 10,771 199,800 8,391 144,475 Class 529C 13,227 242,937 6,670 113,680 - ------------------------------------------------------------------------------------------------------------- 53,514,940 $1,060,147,793 50,971,806 $931,454,179 (i) For the period from the class' inception, May 1, 2006 (Class W) through the stated period end. The fund is one of several mutual funds in which the MFS funds-of-funds may invest. The MFS funds-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 International Diversification Fund, MFS Growth Allocation Fund, and MFS Moderate Allocation fund were the owners of record of approximately 18%, 9%, and 5%, respectively, of the value of outstanding voting shares. In addition, the MFS Lifetime 2010 Fund, MFS Lifetime 2020 Fund, MFS Lifetime 2030 Fund, and MFS Lifetime 2040 Fund were each the owners of record of less than 1% of the value of outstanding voting shares. (6) LINE OF CREDIT The fund and other funds managed by MFS participate in a $1 billion unsecured committed line of credit provided by a syndication of banks under a credit agreement. In addition, the fund and other funds managed by MFS have established uncommitted borrowing arrangements with certain banks. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its borrowings, generally at a rate equal to the Federal Reserve funds rate plus 0.30%. In addition, a commitment fee, based on the average daily, unused portion of the committed line of credit, is allocated among the participating funds at the end of each calendar quarter. For the year ended August 31, 2007, the fund's commitment fee and interest expense were $21,737 and $16,401, respectively, and are included in miscellaneous expense on the Statement of Operations. 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, 2007, 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, 2007, by correspondence with the Fund's 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, 2007, 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 16, 2007 TRUSTEES AND OFFICERS -- IDENTIFICATION AND BACKGROUND The Trustees and officers of the Trust, as of October 1, 2007, 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(h) OTHER DIRECTORSHIPS(j) - ------------------- ---------------- --------------- ---------------------------- INTERESTED TRUSTEES Robert J. Manning(k) Trustee February 2004 Massachusetts Financial Services (born 10/20/63) Company, Chief Executive Officer, President, Chief Investment Officer and Director Robert C. Pozen(k) Trustee February 2004 Massachusetts Financial Services (born 8/08/46) Company, Chairman (since February 2004); MIT Sloan School (education), Senior Lecturer (since 2006); 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 5/01/36) of Trustees Enterprises (diversified services company), Chairman, Trustee and Chief Executive Officer (until November 2000) Robert E. Butler(n) Trustee January 2006 Consultant - regulatory and (born 11/29/41) compliance matters (since July 2002); PricewaterhouseCoopers LLP (professional services firm), Partner (until 2002) Lawrence H. Cohn, M.D. Trustee August 1993 Brigham and Women's Hospital, (born 3/11/37) Chief of Cardiac Surgery (2005); Harvard Medical School, Professor of Cardiac Surgery; Physician Director of Medical Device Technology for Partners HealthCare David H. Gunning Trustee January 2004 Retired; Cleveland-Cliffs Inc. (born 5/30/42) (mining products and service provider), Vice Chairman/Director (until May 2007); Portman Limited (mining), Director (since 2005); 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 9/27/41) consultant; Capitol Entertainment Management Company (video franchise), Vice Chairman; Atlantic Coast Tan (tanning salons), Vice Chairman (since 2002) 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) Lawrence T. Perera Trustee July 1981 Hemenway & Barnes (attorneys), (born 6/23/35) Partner J. Dale Sherratt Trustee August 1993 Insight Resources, Inc. (born 9/23/38) (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 New Profit, Inc. (venture (born 8/05/57) philanthropy), Partner (since 2006); Private investor; Prism Venture Partners (venture capital), Co-founder and General Partner (until June 2004); The Travelers Companies (commercial property liability insurance), Director Robert W. Uek Trustee January 2006 Retired (since 1999); (born 5/18/41) PricewaterhouseCoopers LLP (professional services firm), Partner (until 1999); Consultant to investment company industry (since 2000); TT International Funds (mutual fund complex), Trustee (2000 until 2005); Hillview Investment Trust II Funds (mutual fund complex), Trustee (2000 until 2005) OFFICERS Maria F. Dwyer(k) President November 2005 Massachusetts Financial Services (born 12/01/58) Company, Executive Vice President and Chief Regulatory Officer (since March 2004) Chief Compliance Officer (since December 2006); Fidelity Management & Research Company, Vice President (prior to March 2004); Fidelity Group of Funds, President and Treasurer (prior to March 2004) Tracy Atkinson(k) 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(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 1/18/74) and Assistant Clerk Company, Vice President and Senior Counsel (since April 2003); Kirkpatrick & Lockhart LLP (law firm), Associate (prior to April 2003) Ethan D. Corey(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 11/21/63) and Assistant Clerk Company, Special Counsel (since December 2004); Dechert LLP (law firm), Counsel (prior to December 2004) David L. DiLorenzo(k) Assistant Treasurer July 2005 Massachusetts Financial Services (born 8/10/68) Company, Vice President (since June 2005); JP Morgan Investor Services, Vice President (prior to June 2005) Mark D. Fischer(k) Assistant Treasurer July 2005 Massachusetts Financial Services (born 10/27/70) Company, Vice President (since May 2005); JP Morgan Investment Management Company, Vice President (prior to May 2005) Brian E. Langenfeld(k) Assistant Secretary June 2006 Massachusetts Financial Services (born 3/07/73) and Assistant Clerk Company, Assistant Vice President and Counsel (since May 2006); John Hancock Advisers, LLC, Assistant Vice President and Counsel (May 2005 to April 2006); John Hancock Advisers, LLC, Attorney and Assistant Secretary (prior to May 2005) Ellen Moynihan(k) Assistant Treasurer April 1997 Massachusetts Financial Services (born 11/13/57) Company, Senior Vice President Susan S. Newton(k) Assistant Secretary May 2005 Massachusetts Financial Services (born 3/07/50) and Assistant Clerk Company, Senior Vice President and 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(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 11/05/70) and Assistant Clerk Company, Vice President and Senior Counsel (since June 2004); Bingham McCutchen LLP (law firm), Associate (prior to June 2004) Mark N. Polebaum(k) Secretary and Clerk January 2006 Massachusetts Financial Services (born 5/01/52) Company, Executive Vice President, General Counsel and Secretary (since January 2006); Wilmer Cutler Pickering Hale and Dorr LLP (law firm), Partner (prior to January 2006) Frank L. Tarantino Independent Chief June 2004 Tarantino LLC (provider of (born 3/07/44) Compliance Officer compliance services), Principal (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 (prior to March 2003) James O. Yost(k) Assistant Treasurer September 1990 Massachusetts Financial Services (born 6/12/60) Company, Senior Vice President - ------------ (h) Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served continuously since appointment unless indicated otherwise. (j) Directorships or trusteeships of companies required to report to the Securities and Exchange Commission (i.e., "public companies"). (k) "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. (n) In 2004 and 2005, Mr. Butler provided consulting services to the independent compliance consultant retained by MFS pursuant to its settlement with the SEC concerning market timing and related matters. The terms of that settlement required that compensation and expenses related to the independent compliance consultant be borne exclusively by MFS and, therefore, MFS paid Mr. Butler for the services he rendered to the independent compliance consultant. In 2004 and 2005, MFS paid Mr. Butler a total of $351,119.29. The Trust held a shareholders' meeting in 2005 to elect Trustees, and will hold a shareholders' meeting at least once every five years thereafter, to elect Trustees. Each Trustee (except Mr. Butler and Mr. Uek) has been elected by share- holders 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. Butler, Gutow, Sherratt and Uek and Ms. 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 January 1, 2007, the Trustees served as board members of 97 funds within the MFS Family of Funds. 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 INDEPENDENT REGISTERED PUBLIC DISTRIBUTOR ACCOUNTING FIRM MFS Fund Distributors, Inc. Ernst & Young LLP 500 Boylston Street, Boston, MA 02116-3741 200 Clarendon Street, Boston, MA 02116 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, 2007 ("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 that included, among other items: (i) information provided by Lipper Inc. on the investment performance of the Fund for various time periods ended December 31, 2006 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 ("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 MFS peer funds, (iii) information provided by MFS on the advisory fees of comparable portfolios of other clients of MFS, including institutional separate accounts 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 in 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, 2006, which the Trustees believed was a long enough period to reflect differing market conditions. The total return performance of the Fund's Class A shares was in the 1st quintile relative to the other funds in the universe for this three-year period (the 1st quintile being the best performers and the 5th quintile being the worst performers). The total return performance of the Fund's Class A shares was in the 2nd quintile for each of the one and five-year periods ended December 31, 2006 relative to the Lipper performance universe. Because of the passage of time, these performance results may 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 daily 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 that MFS currently observes an expense limitation for the Fund. The Trustees also considered that, according to the Lipper data (which takes into account the expense limitation and breakpoints described below), 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 subject to contractual breakpoints that reduce the Fund's advisory fee rate on average daily net assets over $1 billion and $2 billion. 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 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 that 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, which may include 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, if applicable, to pay for investment research and other similar services (excluding third-party research, for which MFS pays directly), 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, 2007. A discussion regarding the Board's most recent review and renewal of the Fund's investment advisory agreement will be available on or before November 1, 2007 by clicking on the fund's name under "Select a fund" on the MFS Web site (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 100 F Street, NE, Room 1580 Washington, D.C. 20549 Information on the operation of the Public Reference Room may be obtained by calling the Commission at 1-202-551-5850. The fund's Form N-Q is available on the EDGAR database on the Commission's Internet Web site 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) The fund will notify shareholders of amounts for use in preparing 2007 income tax forms in January 2008. The following information is provided pursuant to provisions of the Internal Revenue Code. The fund designates the maximum amount allowable as qualified dividend income eligible for the 15% tax rate. The fund designates $236,709,768 as capital gain dividends paid during the fiscal year. Income derived from foreign sources was $74,125,660. The fund intends to pass through foreign tax credits of $3,721,353 for the fiscal year. MFS(R) PRIVACY NOTICE Privacy is a concern for every investor today. At MFS Investment Management(R) and the MFS funds, we take this concern very seriously. We want you to understand our policies about the investment products and services that we offer, and how we protect the nonpublic personal information of investors who have a direct relationship with us and our wholly owned subsidiaries. Throughout our business relationship, you provide us with personal information. We maintain information and records about you, your investments, and the services you use. Examples of the nonpublic personal information we maintain include o data from investment applications and other forms o share balances and transactional history with us, our affiliates, or others o facts from a consumer reporting agency We do not disclose any nonpublic personal information about our customers or former customers to anyone, except as permitted by law. We may share nonpublic personal information with third parties or certain of our affiliates in connection with servicing your account or processing your transactions. We may share information with companies or financial institutions that perform marketing services on our behalf or with other financial institutions with which we have joint marketing arrangements, subject to any legal requirements. Authorization to access your nonpublic personal information is limited to appropriate personnel who provide products, services, or information to you. We maintain physical, electronic, and procedural safeguards to help protect the personal information we collect about you. If you have any questions about the MFS privacy policy, please call 1-800-225-2606 any business day between 8 a.m. and 8 p.m. Eastern time. Note: If you own MFS products or receive MFS services in the name of a third party such as a bank or broker-dealer, their privacy policy may apply to you instead of ours. CONTACT US WEB SITE MAILING ADDRESS mfs.com MFS Service Center, Inc. P.O. Box 55824 MFS TALK Boston, MA 1-800-637-8255 02205-5824 24 hours a day OVERNIGHT MAIL ACCOUNT SERVICE AND MFS Service Center, Inc. LITERATURE 500 Boylston Street Boston, MA 02116-3741 SHAREHOLDERS 1-800-225-2606 8 a.m. to 8 p.m. ET INVESTMENT PROFESSIONALS 1-800-343-2829 8 a.m. to 8 p.m. ET RETIREMENT PLAN SERVICES 1-800-637-1255 8 a.m. to 8 p.m. ET - ------------------------------------------------------------------------------- Go paperless with eDELIVERY: Arrange to have MFS send prospectuses, reports, and proxies directly to your e-mail inbox. You'll get timely information and less clutter in your mailbox (not to mention help your fund save printing and postage costs). SIGN UP: If your account is registered with us, simply go to mfs.com, log in to your account via MFS Access, and select the eDelivery sign up options. If you own your MFS fund shares through a financial institution or a retirement plan, MFS TALK, MFS Access, and eDelivery may not be available to you. - ------------------------------------------------------------------------------- M F S(R) INVESTMENT MANAGEMENT M F S(R) INVESTMENT MANAGEMENT [graphic omitted] ANNUAL REPORT MFS(R) TECHNOLOGY FUND LETTER FROM THE CEO 1 - -------------------------------------------------------------- PORTFOLIO COMPOSITION 2 - -------------------------------------------------------------- MANAGEMENT REVIEW 3 - -------------------------------------------------------------- PERFORMANCE SUMMARY 6 - -------------------------------------------------------------- EXPENSE TABLE 9 - -------------------------------------------------------------- PORTFOLIO OF INVESTMENTS 11 - -------------------------------------------------------------- STATEMENT OF ASSETS AND LIABILITIES 14 - -------------------------------------------------------------- STATEMENT OF OPERATIONS 17 - -------------------------------------------------------------- STATEMENTS OF CHANGES IN NET ASSETS 19 - -------------------------------------------------------------- FINANCIAL HIGHLIGHTS 20 - -------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS 26 - -------------------------------------------------------------- REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 37 - -------------------------------------------------------------- TRUSTEES AND OFFICERS 38 - -------------------------------------------------------------- BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT 44 - -------------------------------------------------------------- PROXY VOTING POLICIES AND INFORMATION 49 - -------------------------------------------------------------- QUARTERLY PORTFOLIO DISCLOSURE 49 - -------------------------------------------------------------- FEDERAL TAX INFORMATION 49 - -------------------------------------------------------------- MFS(R) PRIVACY NOTICE 50 - -------------------------------------------------------------- CONTACT INFORMATION BACK COVER - -------------------------------------------------------------- THE 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. - ------------------------------------------------------------------------------- NOT FDIC INSURED o MAY LOSE VALUE o NO BANK OR CREDIT UNION GUARANTEE o NOT A DEPOSIT o NOT INSURED BY ANY FEDERAL GOVERNMENT AGENCY OR NCUA/NCUSIF - ------------------------------------------------------------------------------- 8/31/07 SCT-ANN LETTER FROM THE CEO [Photo of Robert J. Manning] Dear Shareholders: The past year has been a great example of why investors should keep their eyes on the long term. In 2006 the Dow Jones Industrial Average returned 19%. But the Dow's upward rise has not been without hiccups. After hitting new records in July 2007, the Dow lost 8% in the following weeks as a crisis swept global credit markets. As we have said before, markets can be volatile, and investors should make sure they have an investment plan that can carry them through the peaks and troughs. If you are focused on a long-term investment strategy, the short-term ups and downs of the markets should not necessarily dictate portfolio action on your part. Both the bond and stock markets are cyclical. In our view, investors who remain committed to a long-term plan are more likely to achieve their financial goals. We believe you should not let the headlines guide you in your investment decisions and should be cautious about overreacting to short-term volatility. In any market environment, we believe individual investors are best served by following a three-pronged investment strategy of allocating their holdings across the major asset classes, diversifying within each class, and regularly rebalancing their portfolios to maintain their desired allocations. Of course, these strategies cannot guarantee a profit or protect against a loss. Investing and planning for the long term require diligence and patience, two traits that in our experience are essential to capitalizing on the many opportunities the financial markets can offer -- through both up and down economic cycles. Respectfully, /s/ Robert J. Manning Robert J. Manning Chief Executive Officer and Chief Investment Officer MFS Investment Management(R) October 15, 2007 The opinions expressed in this letter are subject to change, may not be relied upon for investment advice, and no forecasts can be guaranteed. PORTFOLIO COMPOSITION PORTFOLIO STRUCTURE (i) Common Stocks 95.3% Options 1.6% Cash & Other Net Assets 3.1% TOP TEN HOLDINGS (i) Intel Corp. 7.3% ------------------------------------------------- International Business Machines Corp. 4.7% ------------------------------------------------- MSC. Software Corp. 4.5% ------------------------------------------------- EMC Corp. 4.3% ------------------------------------------------- salesforce.com, Inc. 4.3% ------------------------------------------------- Network Appliance, Inc. 3.8% ------------------------------------------------- Google, Inc., "A" 3.7% ------------------------------------------------- VeriSign, Inc. 3.7% ------------------------------------------------- Oracle Corp. 3.2% ------------------------------------------------- Flextronics International Ltd. 2.9% ------------------------------------------------- TOP FIVE INDUSTRIES (i) Electronics 26.1% ------------------------------------------------- Computer Software 22.8% ------------------------------------------------- Computer Software - Systems 16.5% ------------------------------------------------- Internet 7.6% ------------------------------------------------- Network & Telecom 7.5% ------------------------------------------------- (i) For purposes of this presentation, the bond component includes both accrued interest amounts and the equivalent exposure from any derivative holdings, if applicable. Percentages are based on net assets as of 08/31/07. The portfolio is actively managed and current holdings may be different. MANAGEMENT REVIEW SUMMARY OF RESULTS For the twelve months ended August 31, 2007, Class A shares of the MFS Technology Fund provided a total return of 31.69%, at net asset value. This compares with a return of 25.66% for the fund's benchmark, the Goldman Sachs Technology Industry Composite Index. MARKET ENVIRONMENT The U.S. economy continues to decouple from the rest of the world, growing at a slower pace than other major economies. Overall, global economies have seen moderate to strong growth over the last twelve months as domestic demand improves and world trade accelerates. With the stronger growth, however, has come increased concern about rising global inflation, especially as capacity becomes more constrained, wages rise, and energy and food prices advance. Late in the reporting period, continued robust global growth and fears of rising inflationary pressures led global central banks to tighten monetary conditions beyond market expectations, which in turn pushed global bond yields to their highest levels during this economic expansion. However, beginning in late July and August, heightened uncertainty and distress concerning the subprime mortgage market caused several global credit markets to seize up, forcing central banks to inject liquidity and to reassess their tightening biases as sovereign bond yields plummeted and credit spreads widened considerably. Increased market volatility has been exacerbated by U.S. home foreclosures, falling housing prices, and weaker-than-expected jobs growth reported by the U.S. Department of Labor. Despite increased volatility across all asset classes, and the widening in credit spreads, global equity markets have experienced only a mild correction to date. CONTRIBUTORS TO PERFORMANCE In the MFS Technology Fund, stock selection in the internet industry was a primary driver of relative performance over the reporting period. Our positioning in Chinese language internet search provider Baidu.com(aa) was the single largest contributor. Other stocks within the industry that contributed to results included holdings in internet software service provider Tencent Holdings(aa) and on-line information services provider NHN Corp.(aa). The fund's minimal exposure to poor-performing on-line information portal Yahoo! also helped. Both Baidu.com and NHN Corp. benefited from rapid earnings growth driven by the emerging and secular shifts to on-line advertising in their home markets. Tencent benefited from very high user growth and monetization of its traffic via fee and advertising revenue. Stock selection in the leisure and toys industry benefited performance. Video game publishing and distribution company Ubisoft Entertainment was a top contributor. Stock selection in the computer software industry added to positive results over the reporting period. Underweighting software giant Microsoft(g) helped results as this stock underperformed the benchmark. Another positive for relative performance included our holdings of Japanese video game console maker Nintendo(g)(aa). Nintendo benefited from the runaway success of their Wii gaming console. Overweighting network equipment manufacturer Juniper Networks(g) also helped. Juniper was one of last year's largest detractors from performance, but we stayed the course. During this reporting period, the stock performed well as growth in its core router markets recovered, driven by rapid growth in bandwidth requirements among its customers. Holdings of managed network services company Equinix(g) and underweighting poor-performing wireless and broadband communications firm Motorola also helped. DETRACTORS FROM PERFORMANCE Stock selection and an underweighted position in the computer systems industry held back relative performance. Underweighting strong-performing computer companies Apple(g) and IBM hindered results over the reporting period. We owned Apple for a significant portion of the period but exited too early as excitement over the iPhone and Mac computers propelled the stock to record highs. Other stocks that detracted from performance included our positioning in network storage company Network Appliance and manufacturer and marketer of high performance computer systems Cray(aa). The fund's allocation to the broadcasting industry, which is not represented in the benchmark, also hurt results. No individual securities within this sector were among the top detractors. Stock selection in the electronics industry was another area of weakness. Overweighting NAND flash memory storage products maker SanDisk and networking chip maker Marvell Technology hampered performance as both stocks underperformed during the period. SanDisk suffered from what we believe was a temporary oversupply of flash memory chips. Our positioning in non-benchmark constituent MSC.Software(aa), an enterprise software company, and telecommunications equipment provider Sonus Networks hurt results as both stocks underperformed the benchmark. MSC experienced delays in its turnaround efforts due to weaker sales of new software releases. Elsewhere, our holdings in Redback Networks(g), a broadband networking systems company, and missing the run-up in the price of internet retailer Amazon.com hurt relative performance. Respectfully, Telis Bertsekas Portfolio Manager (aa) Security is not a benchmark constituent. (g) 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 or 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 portfolio. References to specific securities are not recommendations of such securities, and may not be representative of any MFS portfolio's current or future investments. PERFORMANCE SUMMARY THROUGH 8/31/07 The following chart illustrates a representative class of the fund's historical performance 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. The performance of other share classes will be greater than or less than that of the class depicted below. Benchmark comparisons are unmanaged; do not reflect sales charges, commissions or expenses; and cannot be invested in directly. (See Notes to Performance Summary.) PERFORMANCE DATA SHOWN REPRESENTS PAST PERFORMANCE AND IS NO GUARANTEE OF FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE FLUCTUATE SO YOUR SHARES, WHEN SOLD, MAY BE WORTH MORE OR LESS THAN THE ORIGINAL COST; CURRENT PERFORMANCE MAY BE LOWER OR HIGHER THAN QUOTED. 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 Goldman Sachs MFS Technology Technology Industry Fund -- Class A Composite Index 8/97 $ 9,425 $10,000 8/98 9,368 9,671 8/99 15,481 20,302 8/00 29,092 33,134 8/01 11,342 12,141 8/02 6,631 7,682 8/03 8,806 10,631 8/04 8,169 10,313 8/05 9,379 12,022 8/06 10,747 12,225 8/07 14,153 15,361 TOTAL RETURNS THROUGH 8/31/07 AVERAGE ANNUAL WITHOUT SALES CHARGE Share class Class inception date 1-yr 5-yr 10-yr - ---------------------------------------------------------------------------- A 1/02/97 31.69% 16.37% 4.15% - ---------------------------------------------------------------------------- B 4/14/00 30.94% 15.64% 3.65% - ---------------------------------------------------------------------------- C 4/14/00 30.86% 15.61% 3.64% - ---------------------------------------------------------------------------- I 1/02/97 32.24% 16.77% 4.47% - ---------------------------------------------------------------------------- R 12/31/02 31.51% 16.18% 4.06% - ---------------------------------------------------------------------------- R1 4/01/05 30.66% 15.95% 3.96% - ---------------------------------------------------------------------------- R2 4/01/05 31.22% 16.16% 4.06% - ---------------------------------------------------------------------------- R3 10/31/03 31.40% 16.08% 4.02% - ---------------------------------------------------------------------------- R4 4/01/05 31.72% 16.36% 4.14% - ---------------------------------------------------------------------------- R5 4/01/05 32.06% 16.53% 4.22% - ---------------------------------------------------------------------------- AVERAGE ANNUAL Comparative benchmark - ---------------------------------------------------------------------------- Goldman Sachs Technology Industry Composite Index (f) 25.66% 14.87% 4.39% - ---------------------------------------------------------------------------- AVERAGE ANNUAL WITH SALES CHARGE Share class - ---------------------------------------------------------------------------- A 24.12% 15.00% 3.53% With Initial Sales Charge (5.75%) - ---------------------------------------------------------------------------- B 26.94% 15.42% 3.65% With CDSC (Declining over six years from 4% to 0%) (x) - ---------------------------------------------------------------------------- C 29.86% 15.61% 3.64% With CDSC (1% for 12 months) (x) - ---------------------------------------------------------------------------- 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. CDSC - Contingent Deferred Sales Charge. (f) Source: FactSet Research Systems Inc. (x) Assuming redemption at the end of the applicable period. INDEX DEFINITION Goldman Sachs Technology Industry Composite Index - a modified market capitalization-weighted index of selected technology stocks. It is not possible to invest directly in an index. NOTES TO PERFORMANCE SUMMARY 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, 2007 through August 31, 2007 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 (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, 2007 through August 31, 2007. ACTUAL EXPENSES The first line for each share class in the following table 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 following table 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). 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(p) Share Expense Account Value Account Value 3/01/07- Class Ratio 3/01/07 8/31/07 8/31/07 - -------------------------------------------------------------------------------- Actual 1.50% $1,000.00 $1,120.10 $8.02 A ------------------------------------------------------------------------ Hypothetical (h) 1.50% $1,000.00 $1,017.64 $7.63 - -------------------------------------------------------------------------------- Actual 2.15% $1,000.00 $1,116.60 $11.47 B ------------------------------------------------------------------------ Hypothetical (h) 2.15% $1,000.00 $1,014.37 $10.92 - -------------------------------------------------------------------------------- Actual 2.15% $1,000.00 $1,116.80 $11.47 C ------------------------------------------------------------------------ Hypothetical (h) 2.15% $1,000.00 $1,014.37 $10.92 - -------------------------------------------------------------------------------- Actual 1.15% $1,000.00 $1,122.50 $6.15 I ------------------------------------------------------------------------ Hypothetical (h) 1.15% $1,000.00 $1,019.41 $5.85 - -------------------------------------------------------------------------------- Actual 1.65% $1,000.00 $1,119.30 $8.81 R ------------------------------------------------------------------------ Hypothetical (h) 1.65% $1,000.00 $1,016.89 $8.39 - -------------------------------------------------------------------------------- Actual 2.25% $1,000.00 $1,115.00 $11.99 R1 ------------------------------------------------------------------------ Hypothetical (h) 2.25% $1,000.00 $1,013.86 $11.42 - -------------------------------------------------------------------------------- Actual 1.90% $1,000.00 $1,118.70 $10.15 R2 ------------------------------------------------------------------------ Hypothetical (h) 1.90% $1,000.00 $1,015.63 $9.65 - -------------------------------------------------------------------------------- Actual 1.80% $1,000.00 $1,118.30 $9.61 R3 ------------------------------------------------------------------------ Hypothetical (h) 1.80% $1,000.00 $1,016.13 $9.15 - -------------------------------------------------------------------------------- Actual 1.55% $1,000.00 $1,120.20 $8.28 R4 ------------------------------------------------------------------------ Hypothetical (h) 1.55% $1,000.00 $1,017.39 $7.88 - -------------------------------------------------------------------------------- Actual 1.25% $1,000.00 $1,121.00 $6.68 R5 ------------------------------------------------------------------------ Hypothetical (h) 1.25% $1,000.00 $1,018.90 $6.36 - -------------------------------------------------------------------------------- (h) 5% class return per year before expenses. (p) Expenses paid is equal to each class' annualized expense ratio, as shown above, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year. Expenses paid do not include any applicable sales charges (loads). If these transaction costs had been included, your costs would have been higher. PORTFOLIO OF INVESTMENTS 8/31/07 The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Common Stocks - 95.3% - ---------------------------------------------------------------------------------------------------------------- ISSUER SHARES/PAR VALUE ($) - ---------------------------------------------------------------------------------------------------------------- Broadcasting - 1.9% - ---------------------------------------------------------------------------------------------------------------- XM Satellite Radio Holdings, Inc., "A" (a)(l) 194,053 $ 2,419,841 - ---------------------------------------------------------------------------------------------------------------- Business Services - 3.3% - ---------------------------------------------------------------------------------------------------------------- Amdocs Ltd. (a)(l) 53,320 $ 1,882,196 First Data Corp. 71,034 2,359,749 ------------ $ 4,241,945 - ---------------------------------------------------------------------------------------------------------------- Computer Software - 22.8% - ---------------------------------------------------------------------------------------------------------------- ACI Worldwide, Inc. (a)(l) 55,777 $ 1,449,086 Adobe Systems, Inc. (a) 80,438 3,438,725 Business Objects S.A., ADR (a) 71,404 3,135,350 McAfee, Inc. (a) 24,020 858,715 MSC.Software Corp. (a)(l) 452,796 5,727,869 Oracle Corp. (a) 201,818 4,092,869 salesforce.com, Inc. (a)(l) 136,003 5,498,601 VeriSign, Inc. (a) 145,596 4,688,191 ------------ $ 28,889,406 - ---------------------------------------------------------------------------------------------------------------- Computer Software - Systems - 16.5% - ---------------------------------------------------------------------------------------------------------------- Cray, Inc. (a)(l) 319,440 $ 2,255,246 EMC Corp. (a) 280,083 5,506,432 International Business Machines Corp. (l) 50,960 5,946,522 Network Appliance, Inc. (a) 172,318 4,800,779 Salary.com, Inc. (a) 202,140 2,472,172 ------------ $ 20,981,151 - ---------------------------------------------------------------------------------------------------------------- Electronics - 26.1% - ---------------------------------------------------------------------------------------------------------------- Flextronics International Ltd. (a)(l) 324,270 $ 3,693,435 Intel Corp. 358,866 9,240,800 Marvell Technology Group Ltd. (a) 139,106 2,304,986 National Semiconductor Corp. (l) 137,180 3,610,578 Samsung Electronics Co. Ltd., GDR 11,103 3,525,203 SanDisk Corp. (a)(l) 59,416 3,330,861 Solectron Corp. (a)(l) 940,530 3,649,256 Taiwan Semiconductor Manufacturing Co. Ltd., ADR 371,265 3,682,949 ------------ $ 33,038,068 - ---------------------------------------------------------------------------------------------------------------- Internet - 7.6% - ---------------------------------------------------------------------------------------------------------------- Google, Inc., "A" (a) 9,135 $ 4,706,809 NHN Corp. (a) 8,624 1,663,676 Tencent Holdings Ltd. 624,000 3,240,935 ------------ $ 9,611,420 - ---------------------------------------------------------------------------------------------------------------- Leisure & Toys - 3.8% - ---------------------------------------------------------------------------------------------------------------- Electronic Arts, Inc. (a)(l) 55,300 $ 2,927,582 Ubisoft Entertainment S.A. (a) 29,482 1,830,511 ------------ $ 4,758,093 - ---------------------------------------------------------------------------------------------------------------- Network & Telecom - 7.5% - ---------------------------------------------------------------------------------------------------------------- Motorola, Inc. 92,310 $ 1,564,655 QLogic Corp. (a) 136,700 1,818,110 Research In Motion Ltd. (a) 37,081 3,167,088 Sonus Networks, Inc. (a)(l) 509,980 2,947,684 ------------ $ 9,497,537 - ---------------------------------------------------------------------------------------------------------------- Specialty Stores - 2.0% - ---------------------------------------------------------------------------------------------------------------- GameStop Corp., "A" (a) 50,300 $ 2,522,042 - ---------------------------------------------------------------------------------------------------------------- Telephone Services - 3.8% - ---------------------------------------------------------------------------------------------------------------- AT&T, Inc. 64,100 $ 2,555,667 Qwest Communications International, Inc. (a)(l) 256,250 2,293,439 ------------ $ 4,849,106 - ---------------------------------------------------------------------------------------------------------------- TOTAL COMMON STOCKS (IDENTIFIED COST, $120,197,316) $120,808,609 - ---------------------------------------------------------------------------------------------------------------- NUMBER ISSUER/EXPIRATION DATE/STRIKE PRICE OF CONTRACTS VALUE ($) - ---------------------------------------------------------------------------------------------------------------- Call Options Purchased - 0.2% - ---------------------------------------------------------------------------------------------------------------- Yahoo!, Inc. - April 2008 @ $25 (Premiums Paid, $322,332) (a) 1,490 $ 322,332 - ---------------------------------------------------------------------------------------------------------------- Put Options Purchased - 1.4% - ---------------------------------------------------------------------------------------------------------------- Baidu.com, Inc. - December 2007 @ $220 (a) 108 $ 328,320 Sap Aktiengesellschaft - March 2008 @ $60 871 627,120 Nvidia Corp. - March 2008 @ $60 (a) 760 874,000 - ---------------------------------------------------------------------------------------------------------------- TOTAL PUT OPTIONS PURCHASED (PREMIUMS PAID, $2,386,989) $ 1,829,440 - ---------------------------------------------------------------------------------------------------------------- Short-Term Obligations - 2.1% - ---------------------------------------------------------------------------------------------------------------- ISSUER SHARES/PAR VALUE ($) - ---------------------------------------------------------------------------------------------------------------- Citigroup Funding, Inc., 5.25%, due 9/04/07, at Amortized Cost and Value (y) $ 2,642,000 $ 2,640,844 - ---------------------------------------------------------------------------------------------------------------- Collateral for Securities Loaned - 17.9% - ---------------------------------------------------------------------------------------------------------------- Navigator Securities Lending Prime Portfolio, at Cost and Net Asset Value 22,661,936 $ 22,661,936 - ---------------------------------------------------------------------------------------------------------------- TOTAL INVESTMENTS (IDENTIFIED COST, $148,209,417) $148,263,161 - ---------------------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - (16.9)% (21,447,790) - ---------------------------------------------------------------------------------------------------------------- NET ASSETS - 100.0% $126,815,371 - ---------------------------------------------------------------------------------------------------------------- (a) Non-income producing security. (l) All or a portion of this security is on loan. (y) The rate shown represents an annualized yield at time of purchase. The following abbreviations are used in this report and are defined: ADR American Depository Receipt GDR Global Depository Receipt SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENT OF ASSETS AND LIABILITIES At 8/31/07 This statement represents your fund's balance sheet, which details the assets and liabilities comprising the total value of the fund. ASSETS - ------------------------------------------------------------------------------------------------------- Investments, at value, including $22,678,235 of securities on loan (identified cost, $148,209,417) $148,263,161 Cash 102,463 Foreign currency, at value (identified cost, $33) 30 Receivable for investments sold 2,942,755 Receivable for fund shares sold 619,929 Interest and dividends receivable 61,039 Receivable from investment adviser 11,274 Other assets 707 - ------------------------------------------------------------------------------------------------------- Total assets $152,001,358 - ------------------------------------------------------------------------------------------------------- LIABILITIES - ------------------------------------------------------------------------------------------------------- Payable for investments purchased $2,123,745 Payable for fund shares reacquired 125,243 Collateral for securities loaned, at value (c) 22,661,936 Payable to affiliates Management fee 5,142 Shareholder servicing costs 107,883 Distribution and service fees 4,330 Administrative services fee 160 Retirement plan administration and services fees 95 Payable for independent trustees' compensation 58,668 Accrued expenses and other liabilities 98,785 - ------------------------------------------------------------------------------------------------------- Total liabilities $25,185,987 - ------------------------------------------------------------------------------------------------------- Net assets $126,815,371 - ------------------------------------------------------------------------------------------------------- NET ASSETS CONSIST OF - ------------------------------------------------------------------------------------------------------- Paid-in capital $416,670,698 Unrealized appreciation (depreciation) on investments and translation of assets and liabilities in foreign currencies 53,975 Accumulated net realized gain (loss) on investments and foreign currency transactions (289,909,302) - ------------------------------------------------------------------------------------------------------- Net assets $126,815,371 - ------------------------------------------------------------------------------------------------------- Shares of beneficial interest outstanding 9,707,343 - ------------------------------------------------------------------------------------------------------- (c) Non-cash collateral not included. Statement of Assets and Liabilities - continued Class A shares - ------------------------------------------------------------------------------------------------------- Net assets $56,598,032 Shares outstanding 4,242,059 - ------------------------------------------------------------------------------------------------------- Net asset value per share $13.34 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25Xnet asset value per share) $14.15 - ------------------------------------------------------------------------------------------------------- Class B shares - ------------------------------------------------------------------------------------------------------- Net assets $38,539,668 Shares outstanding 3,025,083 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $12.74 - ------------------------------------------------------------------------------------------------------- Class C shares - ------------------------------------------------------------------------------------------------------- Net assets $16,063,558 Shares outstanding 1,263,001 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $12.72 - ------------------------------------------------------------------------------------------------------- Class I shares - ------------------------------------------------------------------------------------------------------- Net assets $4,179,622 Shares outstanding 304,195 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $13.74 - ------------------------------------------------------------------------------------------------------- Class R shares - ------------------------------------------------------------------------------------------------------- Net assets $2,042,607 Shares outstanding 154,386 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $13.23 - ------------------------------------------------------------------------------------------------------- Class R1 shares - ------------------------------------------------------------------------------------------------------- Net assets $1,234,610 Shares outstanding 97,192 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $12.70 - ------------------------------------------------------------------------------------------------------- Class R2 shares - ------------------------------------------------------------------------------------------------------- Net assets $1,236,655 Shares outstanding 96,494 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $12.82 - ------------------------------------------------------------------------------------------------------- Class R3 shares - ------------------------------------------------------------------------------------------------------- Net assets $5,291,856 Shares outstanding 402,757 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $13.14 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class R4 shares - ------------------------------------------------------------------------------------------------------- Net assets $1,547,467 Shares outstanding 116,123 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $13.33 - ------------------------------------------------------------------------------------------------------- Class R5 shares - ------------------------------------------------------------------------------------------------------- Net assets $81,296 Shares outstanding 6,053 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $13.43 - ------------------------------------------------------------------------------------------------------- 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 Year ended 8/31/07 This statement describes how much your fund earned in investment income and accrued in expenses. It also describes any gains and/or losses generated by fund operations. NET INVESTMENT LOSS - ------------------------------------------------------------------------------------------------------ Income Dividends $674,318 Interest 120,123 Income on securities loaned 77,096 Foreign taxes withheld (45,976) - ------------------------------------------------------------------------------------------------------ Total investment income $825,561 - ------------------------------------------------------------------------------------------------------ Expenses Management fee $910,687 Distribution and service fees 777,081 Shareholder servicing costs 311,236 Administrative services fee 29,876 Retirement plan administration and services fees 10,229 Independent trustees' compensation 21,504 Custodian fee 70,554 Shareholder communications 133,189 Auditing fees 50,067 Legal fees 3,079 Miscellaneous 112,489 - ------------------------------------------------------------------------------------------------------ Total expenses $2,429,991 - ------------------------------------------------------------------------------------------------------ Fees paid indirectly (2,021) Reduction of expenses by investment adviser (245,759) - ------------------------------------------------------------------------------------------------------ Net expenses $2,182,211 - ------------------------------------------------------------------------------------------------------ Net investment loss $(1,356,650) - ------------------------------------------------------------------------------------------------------ Statement of Operations - continued REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS - ------------------------------------------------------------------------------------------------------ Realized gain (loss) (identified cost basis) Investment transactions (s) $31,036,465 Foreign currency transactions (79,306) - ------------------------------------------------------------------------------------------------------ Net realized gain (loss) on investments and foreign currency transactions $30,957,159 - ------------------------------------------------------------------------------------------------------ Change in unrealized appreciation (depreciation) Investments $1,743,168 Translation of assets and liabilities in foreign currencies 51,260 - ------------------------------------------------------------------------------------------------------ Net unrealized gain (loss) on investments and foreign currency translation $1,794,428 - ------------------------------------------------------------------------------------------------------ Net realized and unrealized gain (loss) on investments and foreign currency $32,751,587 - ------------------------------------------------------------------------------------------------------ Change in net assets from operations $31,394,937 - ------------------------------------------------------------------------------------------------------ (s) Includes proceeds received from a non-recurring cash settlement in the amount of $675,148 from a litigation settlement against Global Research Analyst II. SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENTS OF CHANGES IN NET ASSETS These statements describe the increases and/or decreases in net assets resulting from operations, any distributions, and any shareholder transactions. YEARS ENDED 8/31 ------------------------------------ 2007 2006 CHANGE IN NET ASSETS FROM OPERATIONS - ------------------------------------------------------------------------------------------------------- Net investment loss $(1,356,650) $(1,614,441) Net realized gain (loss) on investments and foreign currency transactions 30,957,159 21,168,444 Net unrealized gain (loss) on investments and foreign currency translation 1,794,428 (4,992,797) - ------------------------------------------------------------------------------------------------------- Change in net assets from operations $31,394,937 $14,561,206 - ------------------------------------------------------------------------------------------------------- Change in net assets from fund share transactions $(6,670,719) $(23,708,788) - ------------------------------------------------------------------------------------------------------- Total change in net assets $24,724,218 $(9,147,582) - ------------------------------------------------------------------------------------------------------- NET ASSETS - ------------------------------------------------------------------------------------------------------- At beginning of period 102,091,153 111,238,735 At end of period $126,815,371 $102,091,153 - ------------------------------------------------------------------------------------------------------- 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 life of a particular share class, if shorter). 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 share class (assuming reinvestment of all distributions) held for the entire period. CLASS A YEARS ENDED 8/31 ---------------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $10.13 $8.84 $7.70 $8.30 $6.25 - --------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.10) $(0.11) $(0.05) $(0.10) $(0.07) Net realized and unrealized gain (loss) on investments and foreign currency 3.31 1.40 1.19 (0.50) 2.12 - --------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.21 $1.29 $1.14 $(0.60) $2.05 - --------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $13.34 $10.13 $8.84 $7.70 $8.30 - --------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 31.69 14.59 14.81 (7.23)(b) 32.80 - --------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.70 1.79 1.79 1.60 1.76 Expenses after expense reductions (f) 1.50 1.50 1.51 1.50 1.52 Net investment loss (0.82) (1.13) (0.56) (1.10) (1.05) Portfolio turnover 266 217 163 141 162 Net assets at end of period (000 Omitted) $56,598 $43,313 $48,945 $75,786 $101,059 - --------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS B YEARS ENDED 8/31 ------------------------------------------------------------------------ 2007 2006 2005 2004 2003 Net asset value, beginning of period $9.73 $8.55 $7.50 $8.13 $6.16 - ------------------------------------------------------------------------------------------------------------------------------ INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------------ Net investment loss (d) $(0.17) $(0.17) $(0.10) $(0.15) $(0.11) Net realized and unrealized gain (loss) on investments and foreign currency 3.18 1.35 1.15 (0.48) 2.08 - ------------------------------------------------------------------------------------------------------------------------------ Total from investment operations $3.01 $1.18 $1.05 $(0.63) $1.97 - ------------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $12.74 $9.73 $8.55 $7.50 $8.13 - ------------------------------------------------------------------------------------------------------------------------------ Total return (%) (r)(s)(t) 30.94 13.80 14.00 (7.75)(b) 31.98 - ------------------------------------------------------------------------------------------------------------------------------ RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------------ Expenses before expense reductions (f) 2.36 2.44 2.44 2.25 2.42 Expenses after expense reductions (f) 2.15 2.15 2.16 2.15 2.18 Net investment loss (1.47) (1.79) (1.24) (1.74) (1.71) Portfolio turnover 266 217 163 141 162 Net assets at end of period (000 Omitted) $38,540 $39,025 $43,765 $50,896 $61,353 - ------------------------------------------------------------------------------------------------------------------------------ CLASS C YEARS ENDED 8/31 ---------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $9.72 $8.54 $7.48 $8.12 $6.16 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.17) $(0.17) $(0.10) $(0.15) $(0.11) Net realized and unrealized gain (loss) on investments and foreign currency 3.17 1.35 1.16 (0.49) 2.07 - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.00 $1.18 $1.06 $(0.64) $1.96 - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $12.72 $9.72 $8.54 $7.48 $8.12 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 30.86 13.82 14.17 (7.88)(b) 31.82 - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 2.35 2.44 2.44 2.25 2.42 Expenses after expense reductions (f) 2.15 2.15 2.16 2.15 2.18 Net investment loss (1.46) (1.78) (1.22) (1.74) (1.71) Portfolio turnover 266 217 163 141 162 Net assets at end of period (000 Omitted) $16,064 $11,659 $12,414 $15,367 $20,210 - ----------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS I YEARS ENDED 8/31 ---------------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $10.39 $9.04 $7.85 $8.43 $6.33 - ----------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------------------------------- Net investment income (loss) (d) $(0.06) $(0.08) $0.01 $(0.06) $(0.05) Net realized and unrealized gain (loss) on investments and foreign currency 3.41 1.43 1.18 (0.52) 2.15 - ----------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.35 $1.35 $1.19 $(0.58) $2.10 - ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $13.74 $10.39 $9.04 $7.85 $8.43 - ----------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 32.24 14.93 15.16 (6.88)(b) 33.18 - ----------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.35 1.43 1.44 1.26 1.41 Expenses after expense reductions (f) 1.15 1.15 1.16 1.16 1.17 Net investment income (loss) (0.47) (0.78) 0.17 (0.70) (0.71) Portfolio turnover 266 217 163 141 162 Net assets at end of period (000 Omitted) $4,180 $3,492 $3,384 $13,404 $4,179 - ----------------------------------------------------------------------------------------------------------------------------- CLASS R YEARS ENDED 8/31 ----------------------------------------------------------------------- 2007 2006 2005 2004 2003(i) Net asset value, beginning of period $10.06 $8.80 $7.67 $8.28 $6.16 - --------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.12) $(0.13) $(0.07) $(0.10) $(0.08) Net realized and unrealized gain (loss) on investments and foreign currency 3.29 1.39 1.20 (0.51) 2.20 - --------------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.17 $1.26 $1.13 $(0.61) $2.12 - --------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $13.23 $10.06 $8.80 $7.67 $8.28 - --------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 31.51 14.32 14.73 (7.37)(b) 34.42(n) - --------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.87 1.93 1.94 1.76 1.88(a) Expenses after expense reductions (f) 1.65 1.65 1.66 1.66 1.64(a) Net investment loss (0.99) (1.28) (0.79) (1.21) (1.22)(a) Portfolio turnover 266 217 163 141 162 Net assets at end of period (000 Omitted) $2,043 $3,047 $2,283 $1,266 $173 - --------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R1 YEARS ENDED 8/31 ------------------------------------------ 2007 2006 2005(i) Net asset value, beginning of period $9.72 $8.55 $8.01 - ------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.19) $(0.18) $(0.07) Net realized and unrealized gain (loss) on investments and foreign currency 3.17 1.35 0.61(g) - ------------------------------------------------------------------------------------------------------------------- Total from investment operations $2.98 $1.17 $0.54 - ------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $12.70 $9.72 $8.55 - ------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 30.66 13.68 6.74(n) - ------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 2.48 2.63 2.62(a) Expenses after expense reductions (f) 2.25 2.25 2.34(a) Net investment loss (1.63) (1.88) (1.90)(a) Portfolio turnover 266 217 163 Net assets at end of period (000 Omitted) $1,235 $213 $64 - ------------------------------------------------------------------------------------------------------------------- CLASS R2 YEARS ENDED 8/31 ------------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $9.77 $8.56 $8.01 - ------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.14) $(0.15) $(0.05) Net realized and unrealized gain (loss) on investments and foreign currency 3.19 1.36 0.60(g) - ------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.05 $1.21 $0.55 - ------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $12.82 $9.77 $8.56 - ------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 31.22 14.14 6.87(n) - ------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 2.13 2.33 2.32(a) Expenses after expense reductions (f) 1.90 1.90 2.04(a) Net investment loss (1.16) (1.52) (1.60)(a) Portfolio turnover 266 217 163 Net assets at end of period (000 Omitted) $1,237 $367 $85 - ------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R3 YEARS ENDED 8/31 ------------------------------------------------------------ 2007 2006 2005 2004(i) Net asset value, beginning of period $10.00 $8.76 $7.66 $8.79 - ------------------------------------------------------------------------------------------------------------------------ INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------ Net investment loss (d) $(0.13) $(0.14) $(0.09) $(0.09) Net realized and unrealized gain (loss) on investments and foreign currency 3.27 1.38 1.19 (1.04) - ------------------------------------------------------------------------------------------------------------------------ Total from investment operations $3.14 $1.24 $1.10 $(1.13) - ------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $13.14 $10.00 $8.76 $7.66 - ------------------------------------------------------------------------------------------------------------------------ Total return (%) (r)(s) 31.40 14.16 14.36 (12.86)(b)(n) - ------------------------------------------------------------------------------------------------------------------------ RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------ Expenses before expense reductions (f) 1.98 2.18 2.19 2.01(a) Expenses after expense reductions (f) 1.80 1.80 1.91 1.91(a) Net investment loss (1.07) (1.41) (1.07) (1.47)(a) Portfolio turnover 266 217 163 141 Net assets at end of period (000 Omitted) $5,292 $800 $192 $132 - ------------------------------------------------------------------------------------------------------------------------ CLASS R4 YEARS ENDED 8/31 ------------------------------------------ 2007 2006 2005(i) Net asset value, beginning of period $10.12 $8.85 $8.26 - ------------------------------------------------------------------------------------------------------------------------ INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------ Net investment loss (d) $(0.10) $(0.14) $(0.04) Net realized and unrealized gain (loss) on investments and foreign currency 3.31 1.41 0.63(g) - ------------------------------------------------------------------------------------------------------------------------ Total from investment operations $3.21 $1.27 $0.59 - ------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $13.33 $10.12 $8.85 - ------------------------------------------------------------------------------------------------------------------------ Total return (%) (r)(s) 31.72 14.35 7.14(n) - ------------------------------------------------------------------------------------------------------------------------ RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------ Expenses before expense reductions (f) 1.70 1.84 1.82(a) Expenses after expense reductions (f) 1.55 1.55 1.54(a) Net investment loss (0.76) (1.18) (1.10)(a) Portfolio turnover 266 217 163 Net assets at end of period (000 Omitted) $1,547 $113 $54 - ------------------------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R5 YEARS ENDED 8/31 ------------------------------------------ 2007 2006 2005(i) Net asset value, beginning of period $10.17 $8.86 $8.26 - ------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------- Net investment loss (d) $(0.07) $(0.09) $(0.03) Net realized and unrealized gain (loss) on investments and foreign currency 3.33 1.40 0.63(g) - ------------------------------------------------------------------------------------------------------------------- Total from investment operations $3.26 $1.31 $0.60 - ------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $13.43 $10.17 $8.86 - ------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 32.06 14.79 7.26(n) - ------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.45 1.53 1.52(a) Expenses after expense reductions (f) 1.25 1.25 1.24(a) Net investment loss (0.56) (0.88) (0.79)(a) Portfolio turnover 266 217 163 Net assets at end of period (000 Omitted) $81 $62 $54 - ------------------------------------------------------------------------------------------------------------------- Any redemption fees charged by the fund during the 2004 and 2005 fiscal years resulted in a per share impact of less than $0.01. (a) Annualized. (b) 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. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (g) 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 per share amount of realized and unrealized gains and losses at such time. (i) For the period from the class' inception, December 31, 2002 (Class R), October 31, 2003 (Class R3), April 1, 2005 (Classes R1, R2, R4, and R5) through the stated period end. (n) Not annualized. (r) Certain expenses have been reduced without which performance would have been lower. (s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. Excluding the effect of the proceeds received from a non-recurring litigation against Global Research Analyst II, the Class A, Class B, Class C, Class I, Class R, Class R1, Class R2, Class R3, Class R4, and Class R5 total returns for the year ended August 31, 2007 would have each been lower by approximately 0.56%. (t) Total returns do not include any applicable sales charges. SEE NOTES TO FINANCIAL STATEMENTS NOTES TO FINANCIAL STATEMENTS (1) BUSINESS AND ORGANIZATION MFS Technology Fund (the fund) is a 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, including securities of emerging market issuers. 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. The markets of emerging markets countries are generally more volatile than the markets of developed countries with more mature economies. All of the risks of investing in foreign securities previously described are heightened when investing in emerging markets countries. INVESTMENT VALUATIONS - Equity securities, including restricted equity securities, are generally valued at the last sale or official closing price as reported by an independent pricing service on the market or exchange on which they are primarily traded. For securities for which there were no sales reported that day, equity securities are generally valued at the last quoted daily bid quotation as reported by an independent pricing service on the market or exchange on which they are primarily traded. For securities held short for which there were no sales reported for the day, the position is generally valued at the last quoted daily ask quotation as reported by an independent pricing service on the market or exchange on which such securities are primarily traded. Short-term instruments with a maturity at issuance of 60 days or less may be valued at amortized cost, which approximates market value. Exchange-traded options are generally valued at the last sale or official closing price as reported by an independent pricing service on the exchange on which such options are primarily traded. Exchange-traded options for which there were no sales reported that day are generally valued at the last daily bid quotation as reported by an independent pricing service on the exchange on which such options are primarily traded. Options not traded on an exchange are generally valued at a broker-dealer bid quotation. Foreign currency options are generally valued using an external pricing model that uses market data from an independent source. Open-end investment companies are generally valued at their net asset value per share. Securities and other assets generally valued on the basis of information from an independent pricing service may also be valued at a broker-dealer bid quotation. Values obtained from pricing services can utilize both dealer-supplied valuations and electronic data processing techniques, which take into account factors such as institutional-size trading in similar groups of securities, yield, quality, coupon rate, maturity, type of issue, trading characteristics, and other market data. The values of foreign securities and other assets and liabilities expressed in foreign currencies are converted to U.S. dollars using the mean of bid and asked prices for rates reported by an independent pricing service. The Board of Trustees has delegated primary responsibility for determining or causing to be determined the value of the fund's investments (including any fair valuation) to the adviser pursuant to valuation policies and procedures approved by the Board. If the adviser determines that reliable market quotations are not readily available, investments are valued at fair value as determined in good faith by the adviser in accordance with such procedures under the oversight of the Board of Trustees. Under the fund's valuation policies and procedures, market quotations are not considered to be readily available for many types of debt instruments and certain types of derivatives. These investments are generally valued at fair value based on information from independent pricing services. In addition, investments may be valued at fair value if the adviser determines that an investment's value has been materially affected by events occurring after the close of the exchange or market on which the investment is principally traded (such as foreign exchange or market) and prior to the determination of the fund's net asset value, or after the halting of trading of a specific security where trading does not resume prior to the close of the exchange or market on which the security is principally traded. Events that occur on a frequent basis after foreign markets close (such as developments in foreign markets and significant movements in the U.S. markets) and prior to the determination of the fund's net asset value may be deemed to have a material affect on the value of securities traded in foreign markets. Accordingly, the fund's foreign equity securities may often be valued at fair value. The adviser may rely on independent pricing services or other information (such as the correlation with price movements of similar securities in the same or other markets; the type, cost and investment characteristics of the security; the business and financial condition of the issuer; and trading and other market data) to assist in determining whether to fair value and at what value to fair value an investment. The value of an investment for purposes of calculating the fund's net asset value can differ depending on the source and method used to determine value. When fair valuation is used, the value of investments used to determine the fund's net asset value may differ from quoted or published prices for the same investments. In September 2006, FASB Statement No. 157, Fair Value Measurements (the "Statement") was issued, and is effective for fiscal years beginning after November 15, 2007 and for all interim periods within those fiscal years. This Statement provides a single definition of fair value, a hierarchy for measuring fair value and expanded disclosures about fair value measurements. Management is evaluating the application of the Statement to the fund, and believes the impact will be limited to expanded disclosures resulting from the adoption of this Statement in the fund's financial statements. 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 and other funds managed by 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. DERIVATIVE RISK - The fund may invest in derivatives for hedging or non- hedging purposes. While hedging can reduce or eliminate losses, it can also reduce or eliminate gains. When the fund uses derivatives as an investment to gain market exposure, or for hedging purposes, gains and losses from derivative instruments may be substantially greater than the derivative's original cost. Derivative instruments include purchased options. PURCHASED OPTIONS - The fund may purchase call or put options for a premium. Purchasing call options may be a hedge against an anticipated increase in the dollar cost of securities to be acquired or to increase the fund's exposure to the underlying instrument. Purchasing put options may hedge against a decline in the value of portfolio securities. The premium paid is included as an investment in the Statement of Assets and Liabilities and is subsequently adjusted to the current value of the option. Premiums paid for purchased options which have expired are treated as realized losses on investments in the Statement of Operations. Premiums paid for purchased options which are exercised or closed are added to the amount paid or offset against the proceeds on the underlying security or financial instrument to determine the realized gain or loss. The risk of loss associated with purchased options is limited to the premium paid. 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. At August 31, 2007, the value of securities loaned was $22,678,235. These loans were collateralized by cash of $22,661,936 and U.S. Treasury obligations of $584,692. INDEMNIFICATIONS - Under the fund's organizational documents, its officers and trustees may be indemnified against certain liabilities and expenses arising out of the performance of their duties to the fund. Additionally, in the normal course of business, the fund enters into agreements with service providers that may contain indemnification clauses. The fund's maximum exposure under these agreements is unknown as this would involve future claims that may be made against the fund that have not yet occurred. 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. Certain dividends from foreign securities will be recorded when the fund is informed of the dividend if such information is obtained subsequent to 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. Any proceeds received from litigation involving portfolio holdings are reflected in the Statement of Operations in realized gain/loss if the security has been disposed of by the fund or in unrealized gain/loss if the security is still held by the fund. Any other proceeds from litigation not related to portfolio holdings are reflected as other income in the Statement of Operations. The fund was a participant in litigation against Global Research Analyst II. On May 18, 2007, the fund received a cash settlement in the amount of $675,148. 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. This amount, for the year ended August 31, 2007, is shown as a reduction of total expenses on the Statement of Operations. TAX MATTERS AND DISTRIBUTIONS - The fund intends to qualify as a regulated investment company, as defined under Subchapter M of the Internal Revenue Code, and to distribute all of its taxable income, including realized capital gains. Accordingly, no provision for federal income tax is required in the financial statements. Foreign taxes, if any, have been accrued by the fund in the accompanying financial statements. Distributions to shareholders are recorded on the ex-dividend date. Income and capital gain distributions are determined in accordance with income tax regulations, which may differ from U.S. generally accepted accounting principles. Certain capital accounts in the financial statements are periodically adjusted for permanent differences in order to reflect their tax character. These adjustments have no impact on net assets or net asset value per share. Temporary differences which arise from recognizing certain items of income, expense, gain or loss in different periods for financial statement and tax purposes will reverse at some time in the future. Distributions in excess of net investment income or net realized gains are temporary overdistributions for financial statement purposes resulting from differences in the recognition or classification of income or distributions for financial statement and tax purposes. Book/tax differences primarily relate to net operating losses, wash sale loss deferrals, derivative transactions and foreign currency transactions. The fund declared no distributions for the years ended August 31, 2007 and August 31, 2006. The federal tax cost and the tax basis components of distributable earnings were as follows: AS OF 8/31/07 Cost of investments $148,350,291 -------------------------------------------------------- Gross appreciation $6,762,105 Gross depreciation (6,849,235) -------------------------------------------------------- Net unrealized appreciation (depreciation) $(87,130) Capital loss carryforwards $(290,006,147) Other temporary differences 237,950 As of August 31, 2007, the fund had capital loss carryforwards available to offset future realized gains. Such losses expire as follows: 8/31/08 $(5,483,255) 8/31/09 (113,374,272) 8/31/10 (91,793,756) 8/31/11 (74,891,618) 8/31/12 (4,463,246) ----------------------------------------------- $(290,006,147) The availability of a portion of the capital loss carryforwards, which were acquired on August 22, 2003 in connection with the MFS Global Telecommunications Fund merger, may be limited in a given year. In June 2006, FASB Interpretation No. 48, Accounting for Uncertainty in Income Taxes (the "Interpretation") was issued, and is effective for fiscal years beginning after December 15, 2006 and is to be applied to all open tax years as of the effective date. On December 22, 2006, the SEC delayed the implementation of the Interpretation for regulated investment companies for an additional six months. This Interpretation prescribes a minimum threshold for financial statement recognition of the benefit of a tax position taken or expected to be taken in a tax return, and requires certain expanded disclosures. Management has evaluated the application of the Interpretation to the fund, and has determined that there is no impact resulting from the adoption of this Interpretation on the fund's financial statements. 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 management and related administrative services and facilities to the fund. The management fee is computed daily and paid monthly at an annual rate of 0.75% of the fund's average daily net assets. The investment adviser has agreed in writing to reduce its management fee to 0.70% of average daily net assets in excess of $1 billion. This written agreement may be rescinded only upon consent of the fund's Board of Trustees. For the year ended August 31, 2007, the fund's average daily net assets did not exceed $1 billion and therefore, the management fee was not reduced. The investment adviser has agreed in writing to pay 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 operating expenses do not exceed 0.40% annually of the fund's average daily net assets. This written agreement will continue through December 31, 2007 unless changed or rescinded by the fund's Board of Trustees. For the year ended August 31, 2007, this reduction amounted to $243,688 and is reflected as a reduction of total expenses in the Statement of Operations. DISTRIBUTOR - MFS Fund Distributors, Inc. (MFD), a wholly-owned subsidiary of MFS, as distributor, received $25,913 for the year ended August 31, 2007, 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 MFD and another component of the plan is a service fee paid to MFD. MFD may subsequently pay all, or a portion, of the distribution and/or service fees to financial intermediaries. Distribution Fee Plan Table: TOTAL ANNUAL DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE AND SERVICE FEE RATE FEE RATE PLAN (d) RATE (e) FEE Class A 0.10% 0.25% 0.35% 0.35% $193,230 Class B 0.75% 0.25% 1.00% 1.00% 405,938 Class C 0.75% 0.25% 1.00% 1.00% 141,381 Class R 0.25% 0.25% 0.50% 0.50% 14,930 Class R1 0.50% 0.25% 0.75% 0.75% 4,283 Class R2 0.25% 0.25% 0.50% 0.50% 4,307 Class R3 0.25% 0.25% 0.50% 0.50% 10,932 Class R4 -- 0.25% 0.25% 0.25% 2,080 - --------------------------------------------------------------------------------------------------------------------- Total Distribution and Service Fees $777,081 (d) 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. (e) The annual effective rates represent actual fees incurred under the distribution plan for the year ended August 31, 2007 based on each class' average daily net assets. 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 of purchase. Class B shares are subject to a contingent deferred sales charge in the event of a shareholder redemption within six years of purchase. All contingent deferred sales charges are paid to MFD and during the year ended August 31, 2007, were as follows: AMOUNT Class A $1,469 Class B $53,360 Class C $3,829 SHAREHOLDER SERVICING AGENT - MFS Service Center, Inc. (MFSC), a wholly-owned subsidiary of MFS, receives a fee from the fund for its services as shareholder servicing agent calculated as a percentage of the average daily net assets of the fund as determined periodically under the supervision of the fund's Board of Trustees. For the year ended August 31, 2007, the fee was $74,674, which equated to 0.0614% annually of the fund's average daily net assets. MFSC also receives payment from the fund for out-of-pocket expenses, sub-accounting and other shareholder servicing costs which may be paid to affiliated and unaffiliated service providers. For the year ended August 31, 2007, these out-of-pocket expenses, sub-accounting and other shareholder servicing costs amounted to $200,361. The fund may also pay shareholder servicing related costs directly to non-related parties. ADMINISTRATOR - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to the fund. Under an administrative services agreement, the fund partially reimburses MFS the costs incurred to provide these services. The fund is charged a fixed amount plus a fee based on average daily net assets. The fund's annual fixed amount is $17,500. The administrative services fee incurred for the year ended August 31, 2007 was equivalent to an annual effective rate of 0.0246% 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 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. MFS may subsequently pay all, or a portion, of the retirement plan administration and services fee to affiliated or unaffiliated third parties. For the year ended August 31, 2007, the fund paid MFS an annual retirement plan administration and services fee up to the following annual percentage rates of each class' average daily net assets: BEGINNING OF ANNUAL PERIOD THROUGH EFFECTIVE EFFECTIVE TOTAL 3/31/07 4/01/07 RATE (g) AMOUNT Class R1 0.45% 0.35% 0.35% $2,244 Class R2 0.40% 0.25% 0.25% 2,705 Class R3 0.25% 0.15% 0.15% 3,958 Class R4 0.15% 0.15% 0.15% 1,248 Class R5 0.10% 0.10% 0.10% 74 - ------------------------------------------------------------------------------- Total Retirement Plan Administration and Services Fees $10,229 (g) Prior to April 1, 2007, MFS had agreed in writing to waive a portion of the retirement plan administration and services fee equal to 0.10% for Class R1, 0.15% for Class R2, and 0.10% for Class R3 shares. This agreement was discontinued on March 31, 2007. On April 1, 2007, the annual retirement plan administration and services fee for Class R1, Class R2, and Class R3 shares was lowered to 0.35%, 0.25%, and 0.15%, respectively. For the year ended August 31, 2007, the waiver amounted to $1,474 and is reflected as a reduction of total expenses in the Statement of Operations. TRUSTEES' AND OFFICERS' 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 or officers of the fund who are also officers of the investment adviser, 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 certain retired independent trustees which resulted in a pension expense of $537. The fund also has an unfunded retirement benefit deferral plan for certain independent trustees which resulted in an expense of $15,781. Both amounts are included in independent trustees' compensation for the year ended August 31, 2007. The liability for deferred retirement benefits payable to certain independent trustees under both plans amounted to $58,605 at August 31, 2007, and is included in payable for independent 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. The funds can terminate the Agreement with Tarantino LLC at any time under the terms of the Agreement. For the year ended August 31, 2007, the fee paid to Tarantino LLC was $772. MFS has agreed to reimburse the fund for a portion of the payments made by the funds to Tarantino LLC in the amount of $597, 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. (4) PORTFOLIO SECURITIES Purchases and sales of investments, other than U.S. government securities, purchased option transactions, and short-term obligations, aggregated $311,893,601 and $324,710,450 respectively. (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 YEAR ENDED 8/31/07 8/31/06 SHARES AMOUNT SHARES AMOUNT Shares sold Class A 3,442,780 $41,496,726 936,633 $9,265,824 Class B 421,660 4,813,524 431,689 4,087,393 Class C 437,671 5,063,349 168,042 1,594,448 Class I 165,126 2,024,322 84,307 859,389 Class R 110,132 1,325,272 100,509 991,380 Class R1 117,084 1,353,781 24,284 239,333 Class R2 102,083 1,194,966 31,881 288,973 Class R3 524,754 6,394,355 97,787 947,694 Class R4 154,810 1,893,456 77,723 839,955 Class R5 -- -- 8 78 - ---------------------------------------------------------------------------------------------------------- 5,476,100 $65,559,751 1,952,863 $19,114,467 Shares reacquired Class A (3,477,640) $(42,197,715) (2,193,910) $(21,391,336) Class B (1,406,387) (16,189,416) (1,538,128) (14,435,786) Class C (374,649) (4,293,791) (421,535) (3,939,737) Class I (196,959) (2,409,326) (122,505) (1,226,997) Class R (258,793) (3,124,742) (57,043) (568,460) Class R1 (41,812) (475,041) (9,866) (98,868) Class R2 (43,177) (516,713) (4,276) (38,622) Class R3 (202,048) (2,403,309) (39,636) (372,004) Class R4 (49,880) (620,417) (72,583) (751,370) Class R5 -- -- (8) (75) - ----------------------------------------------------------------------------------------------------------- (6,051,345) $(72,230,470) (4,459,490) $(42,823,255) Net change Class A (34,860) $(700,989) (1,257,277) $(12,125,512) Class B (984,727) (11,375,892) (1,106,439) (10,348,393) Class C 63,022 769,558 (253,493) (2,345,289) Class I (31,833) (385,004) (38,198) (367,608) Class R (148,661) (1,799,470) 43,466 422,920 Class R1 75,272 878,740 14,418 140,465 Class R2 58,906 678,253 27,605 250,351 Class R3 322,706 3,991,046 58,151 575,690 Class R4 104,930 1,273,039 5,140 88,585 Class R5 -- -- -- 3 - ----------------------------------------------------------------------------------------------------------- (575,245) $(6,670,719) (2,506,627) $(23,708,788) (6) LINE OF CREDIT The fund and other funds managed by MFS participate in a $1 billion unsecured committed line of credit provided by a syndication of banks under a credit agreement. In addition, the fund and other funds managed by MFS have established uncommitted borrowing arrangements with certain banks. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its borrowings, generally at a rate equal to the Federal Reserve funds rate plus 0.30%. In addition, a commitment fee, based on the average daily, unused portion of the committed line of credit, is allocated among the participating funds at the end of each calendar quarter. For the year ended August 31, 2007, the fund's commitment fee and interest expense were $598 and $1,774, respectively, and are included in miscellaneous expense on the Statement of Operations. 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, 2007, 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, 2007, by correspondence with the Fund's 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, 2007, 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 16, 2007 TRUSTEES AND OFFICERS -- IDENTIFICATION AND BACKGROUND The Trustees and officers of the Trust, as of October 1, 2007, 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(h) OTHER DIRECTORSHIPS(j) - ------------------- ---------------- --------------- ---------------------------------- INTERESTED TRUSTEES Robert J. Manning(k) Trustee February 2004 Massachusetts Financial Services (born 10/20/63) Company, Chief Executive Officer, President, Chief Investment Officer and Director Robert C. Pozen(k) Trustee February 2004 Massachusetts Financial Services (born 8/08/46) Company, Chairman (since February 2004); MIT Sloan School (education), Senior Lecturer (since 2006); 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 5/01/36) of Trustees Enterprises (diversified services company), Chairman, Trustee and Chief Executive Officer (until November 2000) Robert E. Butler(n) Trustee January 2006 Consultant - regulatory and (born 11/29/41) compliance matters (since July 2002); PricewaterhouseCoopers LLP (professional services firm), Partner (until 2002) Lawrence H. Cohn, M.D. Trustee August 1993 Brigham and Women's Hospital, (born 3/11/37) Chief of Cardiac Surgery (2005); Harvard Medical School, Professor of Cardiac Surgery; Physician Director of Medical Device Technology for Partners HealthCare David H. Gunning Trustee January 2004 Retired; Cleveland-Cliffs Inc. (born 5/30/42) (mining products and service provider), Vice Chairman/Director (until May 2007); Portman Limited (mining), Director (since 2005); 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 9/27/41) consultant; Capitol Entertainment Management Company (video franchise), Vice Chairman; Atlantic Coast Tan (tanning salons), Vice Chairman (since 2002) 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) Lawrence T. Perera Trustee July 1981 Hemenway & Barnes (attorneys), (born 6/23/35) Partner J. Dale Sherratt Trustee August 1993 Insight Resources, Inc. (born 9/23/38) (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 New Profit, Inc. (venture (born 8/05/57) philanthropy), Partner (since 2006); Private investor; Prism Venture Partners (venture capital), Co-founder and General Partner (until June 2004); The Travelers Companies (commercial property liability insurance), Director Robert W. Uek Trustee January 2006 Retired (since 1999); (born 5/18/41) PricewaterhouseCoopers LLP (professional services firm), Partner (until 1999); Consultant to investment company industry (since 2000); TT International Funds (mutual fund complex), Trustee (2000 until 2005); Hillview Investment Trust II Funds (mutual fund complex), Trustee (2000 until 2005) OFFICERS Maria F. Dwyer(k) President November 2005 Massachusetts Financial Services (born 12/01/58) Company, Executive Vice President and Chief Regulatory Officer (since March 2004) Chief Compliance Officer (since December 2006); Fidelity Management & Research Company, Vice President (prior to March 2004); Fidelity Group of Funds, President and Treasurer (prior to March 2004) Tracy Atkinson(k) 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(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 1/18/74) and Assistant Clerk Company, Vice President and Senior Counsel (since April 2003); Kirkpatrick & Lockhart LLP (law firm), Associate (prior to April 2003) Ethan D. Corey(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 11/21/63) and Assistant Clerk Company, Special Counsel (since December 2004); Dechert LLP (law firm), Counsel (prior to December 2004) David L. DiLorenzo(k) Assistant Treasurer July 2005 Massachusetts Financial Services (born 8/10/68) Company, Vice President (since June 2005); JP Morgan Investor Services, Vice President (prior to June 2005) Mark D. Fischer(k) Assistant Treasurer July 2005 Massachusetts Financial Services (born 10/27/70) Company, Vice President (since May 2005); JP Morgan Investment Management Company, Vice President (prior to May 2005) Brian E. Langenfeld(k) Assistant Secretary June 2006 Massachusetts Financial Services (born 3/07/73) and Assistant Clerk Company, Assistant Vice President and Counsel (since May 2006); John Hancock Advisers, LLC, Assistant Vice President and Counsel (May 2005 to April 2006); John Hancock Advisers, LLC, Attorney and Assistant Secretary (prior to May 2005) Ellen Moynihan(k) Assistant Treasurer April 1997 Massachusetts Financial Services (born 11/13/57) Company, Senior Vice President Susan S. Newton(k) Assistant Secretary May 2005 Massachusetts Financial Services (born 3/07/50) and Assistant Clerk Company, Senior Vice President and 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(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 11/05/70) and Assistant Clerk Company, Vice President and Senior Counsel (since June 2004); Bingham McCutchen LLP (law firm), Associate (prior to June 2004) Mark N. Polebaum(k) Secretary and Clerk January 2006 Massachusetts Financial Services (born 5/01/52) Company, Executive Vice President, General Counsel and Secretary (since January 2006); Wilmer Cutler Pickering Hale and Dorr LLP (law firm), Partner (prior to January 2006) Frank L. Tarantino Independent Chief June 2004 Tarantino LLC (provider of (born 3/07/44) Compliance Officer compliance services), Principal (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 (prior to March 2003) James O. Yost(k) Assistant Treasurer September 1990 Massachusetts Financial Services (born 6/12/60) Company, Senior Vice President - ------------ (h) Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served continuously since appointment unless indicated otherwise. (j) Directorships or trusteeships of companies required to report to the Securities and Exchange Commission (i.e., "public companies"). (k) "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. (n) In 2004 and 2005, Mr. Butler provided consulting services to the independent compliance consultant retained by MFS pursuant to its settlement with the SEC concerning market timing and related matters. The terms of that settlement required that compensation and expenses related to the independent compliance consultant be borne exclusively by MFS and, therefore, MFS paid Mr. Butler for the services he rendered to the independent compliance consultant. In 2004 and 2005, MFS paid Mr. Butler a total of $351,119.29. The Trust held a shareholders' meeting in 2005 to elect Trustees, and will hold a shareholders' meeting at least once every five years thereafter, to elect Trustees. Each Trustee (except Mr. Butler and Mr. Uek) 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. Butler, Gutow, Sherratt and Uek and Ms. 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 January 1, 2007, the Trustees served as board members of 97 funds within the MFS Family of Funds. 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 MFS Fund Distributors, Inc. ACCOUNTING FIRM 500 Boylston Street, Boston, MA 02116-3741 Ernst & Young LLP 200 Clarendon Street, Boston, MA 02116 PORTFOLIO MANAGER Telis 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, 2007 ("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 that included, among other items: (i) information provided by Lipper Inc. on the investment performance of the Fund for various time periods ended December 31, 2006 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 ("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 MFS peer funds, (iii) information provided by MFS on the advisory fees of comparable portfolios of other clients of MFS, including institutional separate accounts 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 in 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, 2006, which the Trustees believed was a long enough period to reflect differing market conditions. The total return performance of the Fund's Class A shares was in the 1st quintile relative to the other funds in the universe for this three-year period (the 1st quintile being the best performers and the 5th quintile being the worst performers). The total return performance of the Fund's Class A shares was in the 1st quintile for the one-year period and the 3rd quintile for the five-year period ended December 31, 2006 relative to the Lipper performance universe. Because of the passage of time, these performance results may differ from the performance results for more recent periods, including those shown elsewhere in this report. In addition to considering the performance information provided in connection with the contract review meetings, the independent Trustees noted that, in light of the Fund's substandard relative performance at the time of their contract review meetings in 2006, they had met at each of their regular meetings through January 2007 with MFS' senior investment management personnel to discuss the Fund's performance and MFS' efforts to improve the Fund's performance, as well as met with portfolio management personnel at investment review meetings conducted during the course of the year. The independent Trustees further noted that the Fund's relative performance for the three-year period ended December 31, 2006 had improved in comparison to the prior year. Taking this information into account, 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 daily 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 that MFS has agreed in writing to waive a portion of its advisory fee on average daily net assets over $1 billion, which may not be changed without Trustee approval, and that MFS currently observes an expense limitation for the Fund. The Trustees also considered that, according to the Lipper data (which takes into account the expense limitation), 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 currently subject to the breakpoint described above. The Trustees concluded that the existing breakpoint was sufficient to allow the Fund to benefit from economies of scale as 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 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 that 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, which may include 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, if applicable, to pay for investment research (excluding third-party research, for which MFS pays directly), 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, 2007. A discussion regarding the Board's most recent review and renewal of the Fund's investment advisory agreement will be available on or before November 1, 2007 by clicking on the fund's name under "Select a fund" on the MFS Web site (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 100 F Street, NE, Room 1580 Washington, D.C. 20549 Information on the operation of the Public Reference Room may be obtained by calling the Commission at 1-202-551-5850. The fund's Form N-Q is available on the EDGAR database on the Commission's Internet Web site 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) The fund will notify shareholders of amounts for use in preparing 2007 income tax forms in January 2008. MFS(R) PRIVACY NOTICE Privacy is a concern for every investor today. At MFS Investment Management(R) and the MFS funds, we take this concern very seriously. We want you to understand our policies about the investment products and services that we offer, and how we protect the nonpublic personal information of investors who have a direct relationship with us and our wholly owned subsidiaries. Throughout our business relationship, you provide us with personal information. We maintain information and records about you, your investments, and the services you use. Examples of the nonpublic personal information we maintain include o data from investment applications and other forms o share balances and transactional history with us, our affiliates, or others o facts from a consumer reporting agency We do not disclose any nonpublic personal information about our customers or former customers to anyone, except as permitted by law. We may share nonpublic personal information with third parties or certain of our affiliates in connection with servicing your account or processing your transactions. We may share information with companies or financial institutions that perform marketing services on our behalf or with other financial institutions with which we have joint marketing arrangements, subject to any legal requirements. Authorization to access your nonpublic personal information is limited to appropriate personnel who provide products, services, or information to you. We maintain physical, electronic, and procedural safeguards to help protect the personal information we collect about you. If you have any questions about the MFS privacy policy, please call 1-800-225-2606 any business day between 8 a.m. and 8 p.m. Eastern time. Note: If you own MFS products or receive MFS services in the name of a third party such as a bank or broker-dealer, their privacy policy may apply to you instead of ours. CONTACT US WEB SITE MAILING ADDRESS mfs.com MFS Service Center, Inc. P.O. Box 55824 MFS TALK Boston, MA 02205-5824 1-800-637-8255 24 hours a day OVERNIGHT MAIL MFS Service Center, Inc. ACCOUNT SERVICE AND 500 Boylston Street LITERATURE Boston, MA 02116-3741 SHAREHOLDERS 1-800-225-2606 8 a.m. to 8 p.m. ET INVESTMENT PROFESSIONALS 1-800-343-2829 8 a.m. to 8 p.m. ET RETIREMENT PLAN SERVICES 1-800-637-1255 8 a.m. to 8 p.m. ET - ------------------------------------------------------------------------------- Go paperless with eDELIVERY: Arrange to have MFS(R) send prospectuses, reports, and proxies directly to your e-mail inbox. You'll get timely information and less clutter in your mailbox (not to mention help your fund save printing and postage costs). SIGN UP: If your account is registered with us, simply go to mfs.com, log in to your account via MFS(R) Access, and select the eDelivery sign up options. If you own your MFS fund shares through a financial institution or a retirement plan, MFS(R) TALK, MFS Access, and eDelivery may not be available to you. - ------------------------------------------------------------------------------- M F S(R) INVESTMENT MANAGEMENT M F S(R) INVESTMENT MANAGEMENT [graphic omitted] ANNUAL REPORT MFS(R) VALUE FUND LETTER FROM THE CEO 1 - ------------------------------------------------------------------ PORTFOLIO COMPOSITION 2 - ------------------------------------------------------------------ MANAGEMENT REVIEW 3 - ------------------------------------------------------------------ PERFORMANCE SUMMARY 5 - ------------------------------------------------------------------ EXPENSE TABLE 8 - ------------------------------------------------------------------ PORTFOLIO OF INVESTMENTS 10 - ------------------------------------------------------------------ STATEMENT OF ASSETS AND LIABILITIES 15 - ------------------------------------------------------------------ STATEMENT OF OPERATIONS 18 - ------------------------------------------------------------------ STATEMENTS OF CHANGES IN NET ASSETS 20 - ------------------------------------------------------------------ FINANCIAL HIGHLIGHTS 22 - ------------------------------------------------------------------ NOTES TO FINANCIAL STATEMENTS 36 - ------------------------------------------------------------------ REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 48 - ------------------------------------------------------------------ TRUSTEES AND OFFICERS 49 - ------------------------------------------------------------------ BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT 55 - ------------------------------------------------------------------ PROXY VOTING POLICIES AND INFORMATION 59 - ------------------------------------------------------------------ QUARTERLY PORTFOLIO DISCLOSURE 59 - ------------------------------------------------------------------ FEDERAL TAX INFORMATION 59 - ------------------------------------------------------------------ MFS(R) PRIVACY NOTICE 60 - ------------------------------------------------------------------ CONTACT INFORMATION BACK COVER - ------------------------------------------------------------------ THE 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. - ------------------------------------------------------------------------------ NOT FDIC INSURED o MAY LOSE VALUE o NO BANK OR CREDIT UNION GUARANTEE o NOT A DEPOSIT o NOT INSURED BY ANY FEDERAL GOVERNMENT AGENCY OR NCUA/NCUSIF - ------------------------------------------------------------------------------ 8/31/07 EIF-ANN LETTER FROM THE CEO [Photo of Robert J. Manning] Dear Shareholders: The past year has been a great example of why investors should keep their eyes on the long term. In 2006 the Dow Jones Industrial Average returned 19%. But the Dow's upward rise has not been without hiccups. After hitting new records in July 2007, the Dow lost 8% in the following weeks as a crisis swept global credit markets. As we have said before, markets can be volatile, and investors should make sure they have an investment plan that can carry them through the peaks and troughs. If you are focused on a long-term investment strategy, the short-term ups and downs of the markets should not necessarily dictate portfolio action on your part. Both the bond and stock markets are cyclical. In our view, investors who remain committed to a long-term plan are more likely to achieve their financial goals. We believe you should not let the headlines guide you in your investment decisions and should be cautious about overreacting to short- term volatility. In any market environment, we believe individual investors are best served by following a three-pronged investment strategy of allocating their holdings across the major asset classes, diversifying within each class, and regularly rebalancing their portfolios to maintain their desired allocations. Of course, these strategies cannot guarantee a profit or protect against a loss. Investing and planning for the long term require diligence and patience, two traits that in our experience are essential to capitalizing on the many opportunities the financial markets can offer -- through both up and down economic cycles. Respectfully, /s/ Robert J. Manning Robert J. Manning Chief Executive Officer and Chief Investment Officer MFS Investment Management(R) October 15, 2007 The opinions expressed in this letter are subject to change, may not be relied upon for investment advice, and no forecasts can be guaranteed. PORTFOLIO COMPOSITION PORTFOLIO STRUCTURE Common Stocks 99.0% Cash & Other Net Assets 1.0% TOP TEN HOLDINGS Lockheed Martin Corp. 4.4% ------------------------------------------------ Altria Group, Inc. 3.5% ------------------------------------------------ Bank of America Corp. 3.4% ------------------------------------------------ Allstate Corp. 3.0% ------------------------------------------------ Citigroup, Inc. 2.8% ------------------------------------------------ Exxon Mobil Corp. 2.7% ------------------------------------------------ MetLife, Inc. 2.6% ------------------------------------------------ TOTAL S.A., ADR 2.4% ------------------------------------------------ Johnson & Johnson 2.4% ------------------------------------------------ Goldman Sachs Group, Inc. 2.1% ------------------------------------------------ EQUITY SECTORS Financial Services 29.0% ------------------------------------------------ Energy 12.0% ------------------------------------------------ Industrial Goods & Services 11.2% ------------------------------------------------ Consumer Staples 9.4% ------------------------------------------------ Health Care 8.7% ------------------------------------------------ Utilities & Communications 7.5% ------------------------------------------------ Retailing 4.6% ------------------------------------------------ Basic Materials 4.3% ------------------------------------------------ Technology 4.2% ------------------------------------------------ Autos & Housing 3.2% ------------------------------------------------ Leisure 2.9% ------------------------------------------------ Special Products & Services 1.0% ------------------------------------------------ Transportation 1.0% ------------------------------------------------ Percentages are based on net assets as of 08/31/07. The portfolio is actively managed and current holdings may be different. MANAGEMENT REVIEW SUMMARY OF RESULTS For the twelve months ended August 31, 2007, Class A shares of the MFS Value Fund provided a total return of 16.42%, at net asset value. This compares with a return of 12.85% for the fund's benchmark, the Russell 1000 Value Index. MARKET ENVIRONMENT The U.S. economy continues to decouple from the rest of the world, growing at a slower pace than other major economies. Overall, global economies have seen moderate to strong growth over the last twelve months as domestic demand improves and world trade accelerates. With the stronger growth, however, has come increased concern about rising global inflation, especially as capacity becomes more constrained, wages rise, and energy and food prices advance. Late in the reporting period, continued robust global growth and fears of rising inflationary pressures led global central banks to tighten monetary conditions beyond market expectations, which in turn pushed global bond yields to their highest levels during this economic expansion. However, beginning in late July and August, heightened uncertainty and distress concerning the subprime mortgage market caused several global credit markets to seize up, forcing central banks to inject liquidity and to reassess their tightening biases as sovereign bond yields plummeted and credit spreads widened considerably. Increased market volatility has been exacerbated by U.S. home foreclosures, falling housing prices, and weaker-than-expected jobs growth reported by the U.S. Department of Labor. Despite increased volatility across all asset classes, and the widening in credit spreads, global equity markets have experienced only a mild correction to date. CONTRIBUTORS TO PERFORMANCE For the MFS Value Fund, stock selection in the financial services sector was a principal factor in positive performance relative to the benchmark. Investment banking firm Goldman Sachs was among the top contributors. Goldman Sachs reported strong quarterly earnings and benefited from a robust capital markets environment prior to the turmoil in the subprime mortgage markets. Not owning financial services firm Wachovia, a poor-performing benchmark constituent, was also a positive factor for relative performance. A combination of stock selection and an overweighted position in the strong- performing industrial goods and services sector boosted relative performance. Agricultural equipment manufacturer Deere & Co. and defense contractor Lockheed Martin(aa) were top contributors. Deere & Co. turned in solid quarterly results and raised guidance for the fiscal year 2007. Gains by Lockheed Martin were driven by strong revenue growth, improved margins, and key contract awards during the reporting period. Stock selection in the consumer staples sector aided results. The fund's underweighted positioning in household products maker Procter & Gamble, which underperformed the benchmark, benefited performance. Stock selection in the technology sector also helped generate favorable results. Semiconductor manufacturer Intel(aa) was among the fund's top contributors. Avoiding poor-performing pharmaceutical company Pfizer for most of the reporting period also helped. Elsewhere, communications services provider Vodafone(aa), athletic shoes and apparel manufacturer Nike(aa), and management consulting firm Accenture(aa) posted strong relative returns. DETRACTORS FROM PERFORMANCE Stock selection and, to a lesser extent, an underweighted position in the energy sector dampened relative performance. The fund's underweighting in integrated oil and gas companies, Chevron and Exxon Mobil, particularly hurt. Underweighting the leisure sector also held back results. Not owning fast food chain giant McDonald's detracted from performance as the company's stock outperformed the benchmark over the reporting period. Elsewhere, the fund's underweighted positioning in strong-performing telecommunications company AT&T hurt. Health care products maker Johnson & Johnson, insurance companies Allstate and Genworth Financial, department stores operator Macy's, financial services firm UBS(aa), and home improvement products maker Masco were top detractors. Concerns regarding the deterioration of the U.S. housing market and weaker-than-expected earnings due to rising raw materials prices weighed on Masco's shares during the period. Respectfully, Nevin Chitkara Steven Gorham Portfolio Manager Portfolio Manager (aa) Security is not a benchmark constituent. 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 or 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 portfolio. References to specific securities are not recommendations of such securities, and may not be representative of any MFS portfolio's current or future investments. PERFORMANCE SUMMARY THROUGH 8/31/07 The following chart illustrates a representative class of the fund's historical performance 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. The performance of other share classes will be greater than or less than that of the class depicted below. Benchmark comparisons are unmanaged; do not reflect sales charges, commissions or expenses; and cannot be invested in directly. (See Notes to Performance Summary.) PERFORMANCE DATA SHOWN REPRESENTS PAST PERFORMANCE AND IS NO GUARANTEE OF FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE FLUCTUATE SO YOUR SHARES, WHEN SOLD, MAY BE WORTH MORE OR LESS THAN THE ORIGINAL COST; CURRENT PERFORMANCE MAY BE LOWER OR HIGHER THAN QUOTED. 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 MFS Value Fund -- Russell 1000 Class A Value Index 8/97 $ 9,425 $10,000 8/98 10,321 10,389 8/99 12,826 13,514 8/00 14,872 14,076 8/01 15,345 13,918 8/02 13,866 12,090 8/03 14,729 13,496 8/04 17,252 15,860 8/05 19,901 18,534 8/06 22,362 21,120 8/07 26,035 23,835 TOTAL RETURNS THROUGH 8/31/07 AVERAGE ANNUAL WITHOUT SALES CHARGE Share class Class inception date 1-yr 5-yr 10-yr - ---------------------------------------------------------------------------- A 1/02/96 16.42% 13.43% 10.69% - ---------------------------------------------------------------------------- B 11/04/97 15.64% 12.68% 10.00% - ---------------------------------------------------------------------------- C 11/05/97 15.66% 12.68% 10.00% - ---------------------------------------------------------------------------- I 1/02/97 16.78% 13.81% 11.09% - ---------------------------------------------------------------------------- W 5/01/06 16.73% 13.50% 10.73% - ---------------------------------------------------------------------------- R 12/31/02 16.22% 13.27% 10.62% - ---------------------------------------------------------------------------- R1 4/01/05 15.55% 13.01% 10.49% - ---------------------------------------------------------------------------- R2 4/01/05 15.92% 13.21% 10.59% - ---------------------------------------------------------------------------- R3 10/31/03 16.07% 13.13% 10.55% - ---------------------------------------------------------------------------- R4 4/01/05 16.38% 13.41% 10.69% - ---------------------------------------------------------------------------- R5 4/01/05 16.70% 13.57% 10.76% - ---------------------------------------------------------------------------- 529A 7/31/02 16.09% 13.11% 10.54% - ---------------------------------------------------------------------------- 529B 7/31/02 15.37% 12.41% 10.19% - ---------------------------------------------------------------------------- 529C 7/31/02 15.34% 12.41% 10.19% - ------------------------------------------------------------------------------- AVERAGE ANNUAL Comparative benchmark - ------------------------------------------------------------------------------- Russell 1000 Value Index (f) 12.85% 14.54% 9.07% - ------------------------------------------------------------------------------- AVERAGE ANNUAL WITH SALES CHARGE Share class - ------------------------------------------------------------------------------- A 9.73% 12.09% 10.04% With Initial Sales Charge (5.75%) ------------------------------------------------------------------------- B 11.64% 12.43% 10.00% With CDSC (Declining over six years from 4% to 0%) (x) ------------------------------------------------------------------------- C 14.66% 12.68% 10.00% With CDSC (1% for 12 months) (x) ------------------------------------------------------------------------- 529A 9.41% 11.78% 9.89% With Initial Sales Charge (5.75%) ------------------------------------------------------------------------- 529B 11.37% 12.16% 10.19% With CDSC (Declining over six years from 4% to 0%) (x) ------------------------------------------------------------------------- 529C 14.34% 12.41% 10.19% With CDSC (1% for 12 months) (x) - ------------------------------------------------------------------------------- Class I, W, R, R1, R2, R3, R4, and R5 shares do not have a sales charge. Please see Notes to Performance Summary for more details. CDSC - Contingent Deferred Sales Charge. (f) Source: FactSet Research Systems Inc. (x) Assuming redemption at the end of the applicable period. INDEX DEFINITION Russell 1000 Value Index - 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 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, 2007 through August 31, 2007 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 (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, 2007 through August 31, 2007. ACTUAL EXPENSES The first line for each share class in the following table 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 following table 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). 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 Beginning Ending Paid During Annualized Account Account Period (p) Share Expense Value Value 3/01/07- Class Ratio 3/01/07 8/31/07 8/31/07 - -------------------------------------------------------------------------------- Actual 1.12% $1,000.00 $1,049.40 $5.79 A ----------------------------------------------------------------------- Hypothetical(h) 1.12% $1,000.00 $1,019.56 $5.70 - -------------------------------------------------------------------------------- Actual 1.77% $1,000.00 $1,045.50 $9.13 B ----------------------------------------------------------------------- Hypothetical(h) 1.77% $1,000.00 $1,016.28 $9.00 - -------------------------------------------------------------------------------- Actual 1.77% $1,000.00 $1,045.80 $9.13 C ----------------------------------------------------------------------- Hypothetical(h) 1.77% $1,000.00 $1,016.28 $9.00 - -------------------------------------------------------------------------------- Actual 0.77% $1,000.00 $1,050.90 $3.98 I ----------------------------------------------------------------------- Hypothetical(h) 0.77% $1,000.00 $1,021.32 $3.92 - -------------------------------------------------------------------------------- Actual 0.87% $1,000.00 $1,050.80 $4.50 W ----------------------------------------------------------------------- Hypothetical(h) 0.87% $1,000.00 $1,020.82 $4.43 - -------------------------------------------------------------------------------- Actual 1.27% $1,000.00 $1,048.10 $6.56 R ----------------------------------------------------------------------- Hypothetical(h) 1.27% $1,000.00 $1,018.80 $6.46 - -------------------------------------------------------------------------------- Actual 1.87% $1,000.00 $1,045.20 $9.64 R1 ----------------------------------------------------------------------- Hypothetical(h) 1.87% $1,000.00 $1,015.78 $9.50 - -------------------------------------------------------------------------------- Actual 1.52% $1,000.00 $1,047.00 $7.84 R2 ----------------------------------------------------------------------- Hypothetical(h) 1.52% $1,000.00 $1,017.54 $7.73 - -------------------------------------------------------------------------------- Actual 1.42% $1,000.00 $1,047.40 $7.33 R3 ----------------------------------------------------------------------- Hypothetical(h) 1.42% $1,000.00 $1,018.05 $7.22 - -------------------------------------------------------------------------------- Actual 1.17% $1,000.00 $1,049.00 $6.04 R4 ----------------------------------------------------------------------- Hypothetical(h) 1.17% $1,000.00 $1,019.31 $5.96 - -------------------------------------------------------------------------------- Actual 0.87% $1,000.00 $1,050.30 $4.50 R5 ----------------------------------------------------------------------- Hypothetical(h) 0.87% $1,000.00 $1,020.82 $4.43 - -------------------------------------------------------------------------------- Actual 1.37% $1,000.00 $1,047.90 $7.07 529A ----------------------------------------------------------------------- Hypothetical(h) 1.37% $1,000.00 $1,018.30 $6.97 - -------------------------------------------------------------------------------- Actual 2.02% $1,000.00 $1,044.60 $10.41 529B ----------------------------------------------------------------------- Hypothetical(h) 2.02% $1,000.00 $1,015.02 $10.26 - -------------------------------------------------------------------------------- Actual 2.02% $1,000.00 $1,044.30 $10.41 529C ----------------------------------------------------------------------- Hypothetical(h) 2.02% $1,000.00 $1,015.02 $10.26 - -------------------------------------------------------------------------------- (h) 5% class return per year before expenses. (p) Expenses paid is equal to each class' annualized expense ratio, as shown above, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year. Expenses paid do not include any applicable sales charges (loads). If these transaction costs had been included, your costs would have been higher. PORTFOLIO OF INVESTMENTS 8/31/07 The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Common Stocks - 99.0% - ---------------------------------------------------------------------------------------------------------------------------------- ISSUER SHARES/PAR VALUE ($) - ---------------------------------------------------------------------------------------------------------------------------------- Aerospace - 8.1% - ---------------------------------------------------------------------------------------------------------------------------------- Lockheed Martin Corp. 4,603,500 $ 456,390,990 Northrop Grumman Corp. (l) 2,647,710 208,745,456 United Technologies Corp. 2,443,370 182,348,703 --------------- $ 847,485,149 - ---------------------------------------------------------------------------------------------------------------------------------- Alcoholic Beverages - 1.1% - ---------------------------------------------------------------------------------------------------------------------------------- Diageo PLC 5,337,699 $ 113,985,091 - ---------------------------------------------------------------------------------------------------------------------------------- Apparel Manufacturers - 1.5% - ---------------------------------------------------------------------------------------------------------------------------------- Nike, Inc., "B" 2,697,000 $ 151,948,980 - ---------------------------------------------------------------------------------------------------------------------------------- Automotive - 0.6% - ---------------------------------------------------------------------------------------------------------------------------------- Johnson Controls, Inc. (l) 563,030 $ 63,678,693 - ---------------------------------------------------------------------------------------------------------------------------------- Broadcasting - 1.7% - ---------------------------------------------------------------------------------------------------------------------------------- Citadel Broadcasting Corp. (l) 108,089 $ 439,922 E.W. Scripps Co., "A" (l) 630,790 25,925,469 Viacom, Inc., "B" (a)(l) 1,929,531 76,139,293 Walt Disney Co. 1,415,760 47,569,536 WPP Group PLC 2,162,160 30,781,554 --------------- $ 180,855,774 - ---------------------------------------------------------------------------------------------------------------------------------- Brokerage & Asset Managers - 3.9% - ---------------------------------------------------------------------------------------------------------------------------------- Franklin Resources, Inc. 553,620 $ 72,950,507 Goldman Sachs Group, Inc. 1,264,720 222,603,367 Lehman Brothers Holdings, Inc. (l) 957,840 52,518,367 Merrill Lynch & Co., Inc. 732,850 54,011,045 --------------- $ 402,083,286 - ---------------------------------------------------------------------------------------------------------------------------------- Business Services - 1.0% - ---------------------------------------------------------------------------------------------------------------------------------- Accenture Ltd., "A" 2,631,730 $ 108,453,593 - ---------------------------------------------------------------------------------------------------------------------------------- Chemicals - 2.7% - ---------------------------------------------------------------------------------------------------------------------------------- Dow Chemical Co. 889,920 $ 37,937,290 PPG Industries, Inc. (l) 2,044,850 149,989,748 Syngenta AG 481,460 90,106,867 --------------- $ 278,033,905 - ---------------------------------------------------------------------------------------------------------------------------------- Computer Software - 1.5% - ---------------------------------------------------------------------------------------------------------------------------------- Oracle Corp. (a) 7,862,480 $ 159,451,094 - ---------------------------------------------------------------------------------------------------------------------------------- Computer Software - Systems - 1.2% - ---------------------------------------------------------------------------------------------------------------------------------- Hewlett-Packard Co. 1,855,980 $ 91,592,613 International Business Machines Corp. (l) 291,200 33,980,128 --------------- $ 125,572,741 - ---------------------------------------------------------------------------------------------------------------------------------- Construction - 2.6% - ---------------------------------------------------------------------------------------------------------------------------------- Masco Corp. (l) 5,861,190 $ 152,508,164 Sherwin-Williams Co. (l) 742,980 51,273,050 Toll Brothers, Inc. (a)(l) 3,045,670 65,055,511 --------------- $ 268,836,725 - ---------------------------------------------------------------------------------------------------------------------------------- Consumer Goods & Services - 1.8% - ---------------------------------------------------------------------------------------------------------------------------------- Procter & Gamble Co. 2,919,640 $ 190,681,688 - ---------------------------------------------------------------------------------------------------------------------------------- Containers - 0.2% - ---------------------------------------------------------------------------------------------------------------------------------- Smurfit-Stone Container Corp. (a)(l) 1,547,940 $ 16,346,246 - ---------------------------------------------------------------------------------------------------------------------------------- Electrical Equipment - 1.5% - ---------------------------------------------------------------------------------------------------------------------------------- Rockwell Automation, Inc. (l) 1,002,240 $ 70,617,830 W.W. Grainger, Inc. 919,210 84,208,828 --------------- $ 154,826,658 - ---------------------------------------------------------------------------------------------------------------------------------- Electronics - 1.5% - ---------------------------------------------------------------------------------------------------------------------------------- Intel Corp. 6,163,340 $ 158,706,005 - ---------------------------------------------------------------------------------------------------------------------------------- Energy - Independent - 2.6% - ---------------------------------------------------------------------------------------------------------------------------------- Apache Corp. 1,152,870 $ 89,209,081 Devon Energy Corp. 1,535,280 115,621,937 EOG Resources, Inc. (l) 914,580 61,606,109 --------------- $ 266,437,127 - ---------------------------------------------------------------------------------------------------------------------------------- Energy - Integrated - 9.4% - ---------------------------------------------------------------------------------------------------------------------------------- Chevron Corp. (l) 968,084 $ 84,959,052 ConocoPhillips 1,706,280 139,727,269 Exxon Mobil Corp. 3,283,680 281,509,886 Hess Corp. (l) 2,047,810 125,674,100 Marathon Oil Corp. 711,800 38,358,902 Royal Dutch Shell PLC, ADR 689,640 53,343,654 TOTAL S.A., ADR 3,384,720 254,158,625 --------------- $ 977,731,488 - ---------------------------------------------------------------------------------------------------------------------------------- Food & Beverages - 3.0% - ---------------------------------------------------------------------------------------------------------------------------------- Kellogg Co. (l) 2,094,750 $ 115,064,618 Nestle S.A. 252,910 110,010,930 PepsiCo, Inc. 1,358,466 92,416,442 --------------- $ 317,491,990 - ---------------------------------------------------------------------------------------------------------------------------------- Food & Drug Stores - 0.8% - ---------------------------------------------------------------------------------------------------------------------------------- CVS Caremark Corp. 2,295,407 $ 86,812,293 - ---------------------------------------------------------------------------------------------------------------------------------- Forest & Paper Products - 0.1% - ---------------------------------------------------------------------------------------------------------------------------------- Bowater, Inc. (l) 353,090 $ 5,946,036 - ---------------------------------------------------------------------------------------------------------------------------------- Gaming & Lodging - 1.1% - ---------------------------------------------------------------------------------------------------------------------------------- Royal Caribbean Cruises Ltd. (l) 3,004,280 $ 114,252,768 - ---------------------------------------------------------------------------------------------------------------------------------- General Merchandise - 1.5% - ---------------------------------------------------------------------------------------------------------------------------------- Macy's, Inc. (l) 4,776,870 $ 151,522,316 - ---------------------------------------------------------------------------------------------------------------------------------- Health Maintenance Organizations - 1.8% - ---------------------------------------------------------------------------------------------------------------------------------- UnitedHealth Group, Inc. 943,290 $ 47,173,933 WellPoint, Inc. (a) 1,734,600 139,791,414 --------------- $ 186,965,347 - ---------------------------------------------------------------------------------------------------------------------------------- Insurance - 8.7% - ---------------------------------------------------------------------------------------------------------------------------------- Allstate Corp. 5,759,240 $ 315,318,390 Chubb Corp. 1,150,160 58,807,681 Genworth Financial, Inc., "A" 3,005,420 87,097,072 Hartford Financial Services Group, Inc. 1,146,085 101,898,417 MetLife, Inc. (l) 4,266,770 273,286,619 Prudential Financial, Inc. (l) 764,390 68,626,934 --------------- $ 905,035,113 - ---------------------------------------------------------------------------------------------------------------------------------- Machinery & Tools - 1.6% - ---------------------------------------------------------------------------------------------------------------------------------- Deere & Co. 875,016 $ 119,054,677 Eaton Corp. 258,940 24,397,327 Timken Co. 747,090 26,566,520 --------------- $ 170,018,524 - ---------------------------------------------------------------------------------------------------------------------------------- Major Banks - 8.3% - ---------------------------------------------------------------------------------------------------------------------------------- Bank of America Corp. 7,054,455 $ 357,519,779 Bank of New York Mellon Corp. 4,280,248 173,050,427 PNC Financial Services Group, Inc. (l) 1,594,940 112,235,928 State Street Corp. (l) 1,075,210 65,974,886 SunTrust Banks, Inc. (l) 1,921,540 151,321,275 --------------- $ 860,102,295 - ---------------------------------------------------------------------------------------------------------------------------------- Other Banks & Diversified Financials - 8.1% - ---------------------------------------------------------------------------------------------------------------------------------- American Express Co. 1,937,340 $ 113,566,871 Citigroup, Inc. 6,228,430 291,988,798 Fannie Mae 3,233,830 212,171,586 Freddie Mac 848,820 52,295,800 UBS AG 3,394,971 177,040,951 --------------- $ 847,064,006 - ---------------------------------------------------------------------------------------------------------------------------------- Pharmaceuticals - 6.9% - ---------------------------------------------------------------------------------------------------------------------------------- Abbott Laboratories 726,730 $ 37,724,554 Eli Lilly & Co. 379,300 21,752,855 GlaxoSmithKline PLC 2,110,880 55,122,807 Johnson & Johnson 4,054,320 250,516,433 Merck & Co., Inc. 2,639,830 132,440,271 Pfizer, Inc. 1,905,600 47,335,104 Wyeth 3,862,750 178,845,325 --------------- $ 723,737,349 - ---------------------------------------------------------------------------------------------------------------------------------- Printing & Publishing - 0.1% - ---------------------------------------------------------------------------------------------------------------------------------- New York Times Co., "A" (l) 622,700 $ 13,686,946 - ---------------------------------------------------------------------------------------------------------------------------------- Railroad & Shipping - 1.0% - ---------------------------------------------------------------------------------------------------------------------------------- Burlington Northern Santa Fe Corp. 1,116,210 $ 90,580,442 Norfolk Southern Corp. 253,730 12,993,513 --------------- $ 103,573,955 - ---------------------------------------------------------------------------------------------------------------------------------- Specialty Chemicals - 1.3% - ---------------------------------------------------------------------------------------------------------------------------------- Air Products & Chemicals, Inc. 883,468 $ 79,520,955 Praxair, Inc. 752,820 56,958,361 --------------- $ 136,479,316 - ---------------------------------------------------------------------------------------------------------------------------------- Specialty Stores - 0.8% - ---------------------------------------------------------------------------------------------------------------------------------- Advance Auto Parts, Inc. 575,600 $ 20,468,336 Lowe's Cos., Inc. 658,260 20,445,556 Staples, Inc. 1,768,400 41,999,500 --------------- $ 82,913,392 - ---------------------------------------------------------------------------------------------------------------------------------- Telecommunications - Wireless - 2.0% - ---------------------------------------------------------------------------------------------------------------------------------- Sprint Nextel Corp. 5,349,790 $ 101,218,027 Vodafone Group PLC 32,421,303 104,473,285 --------------- $ 205,691,312 - ---------------------------------------------------------------------------------------------------------------------------------- Telephone Services - 2.0% - ---------------------------------------------------------------------------------------------------------------------------------- AT&T, Inc. 1,583,300 $ 63,126,171 Embarq Corp. 1,144,729 71,453,984 TELUS Corp. (non-voting shares) 409,090 21,214,516 Verizon Communications, Inc. 1,187,300 49,724,124 --------------- $ 205,518,795 - ---------------------------------------------------------------------------------------------------------------------------------- Tobacco - 3.5% - ---------------------------------------------------------------------------------------------------------------------------------- Altria Group, Inc. 5,260,450 $ 365,127,835 - ---------------------------------------------------------------------------------------------------------------------------------- Utilities - Electric Power - 3.5% - ---------------------------------------------------------------------------------------------------------------------------------- Dominion Resources, Inc. 1,395,580 $ 118,875,504 Entergy Corp. 702,160 72,757,819 FPL Group, Inc. 1,727,590 101,651,396 PPL Corp. (l) 660,100 31,856,426 Public Service Enterprise Group, Inc. 413,070 35,106,819 --------------- $ 360,247,964 - ---------------------------------------------------------------------------------------------------------------------------------- TOTAL COMMON STOCKS (IDENTIFIED COST, $7,886,671,451) $10,307,301,795 - ---------------------------------------------------------------------------------------------------------------------------------- Collateral for Securities Loaned - 2.7% - ---------------------------------------------------------------------------------------------------------------------------------- Navigator Securities Lending Prime Portfolio, at Cost and Net Asset Value 286,667,246 $ 286,667,246 - ---------------------------------------------------------------------------------------------------------------------------------- Repurchase Agreements - 0.7% - ---------------------------------------------------------------------------------------------------------------------------------- Merrill Lynch, 5.3%, dated 8/31/07, due 9/04/07, total to be received $73,911,500 (secured by U.S. Treasury and Federal Agency obligations and Mortgage Backed securities in a jointly traded account), at Cost $ 73,868,000 $ 73,868,000 - ---------------------------------------------------------------------------------------------------------------------------------- Short-Term Obligations - 0.2% - ---------------------------------------------------------------------------------------------------------------------------------- Citigroup Funding, Inc., 5.25%, due 9/04/07 (y) $ 18,618,000 $ 18,609,855 - ---------------------------------------------------------------------------------------------------------------------------------- TOTAL INVESTMENTS (IDENTIFIED COST, $8,265,816,552) $10,686,446,896 - ---------------------------------------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - (2.6)% (274,894,036) - ---------------------------------------------------------------------------------------------------------------------------------- NET ASSETS - 100.0% $10,411,552,860 - ---------------------------------------------------------------------------------------------------------------------------------- (a) Non-income producing security. (l) All or a portion of this security is on loan. (y) The rate shown represents an annualized yield at time of purchase. The following abbreviations are used in this report and are defined: ADR American Depository Receipt SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENT OF ASSETS AND LIABILITIES At 8/31/07 This statement represents your fund's balance sheet, which details the assets and liabilities comprising the total value of the fund. ASSETS - ------------------------------------------------------------------------------------------------------- Investments, at value, including $293,829,947 of securities on loan (identified cost, $8,265,816,552) $10,686,446,896 Cash 630 Receivable for investments sold 913,357 Receivable for fund shares sold 38,362,247 Interest and dividends receivable 21,057,899 Receivable from investment adviser 52,439 Other assets 38,125 - ------------------------------------------------------------------------------------------------------- Total assets $10,746,871,593 - ------------------------------------------------------------------------------------------------------- LIABILITIES - ------------------------------------------------------------------------------------------------------- Payable for investments purchased $12,484,460 Payable for fund shares reacquired 31,537,922 Collateral for securities loaned, at value (c) 286,667,246 Payable to affiliates Management fee 331,544 Shareholder servicing costs 3,364,464 Distribution and service fees 241,137 Administrative services fee 3,077 Program manager fees 142 Retirement plan administration and services fees 3,072 Payable for independent trustees' compensation 10,007 Accrued expenses and other liabilities 675,662 - ------------------------------------------------------------------------------------------------------- Total liabilities $335,318,733 - ------------------------------------------------------------------------------------------------------- Net assets $10,411,552,860 - ------------------------------------------------------------------------------------------------------- NET ASSETS CONSIST OF - ------------------------------------------------------------------------------------------------------- Paid-in capital $7,457,392,890 Unrealized appreciation (depreciation) on investments and translation of assets and liabilities in foreign currencies 2,420,626,964 Accumulated net realized gain (loss) on investments and foreign currency transactions 518,532,677 Undistributed net investment income 15,000,329 - ------------------------------------------------------------------------------------------------------- Net assets $10,411,552,860 - ------------------------------------------------------------------------------------------------------- Shares of beneficial interest outstanding 370,743,781 - ------------------------------------------------------------------------------------------------------- (c) Non-cash collateral not included. Statement of Assets and Liabilities - continued Class A shares - ------------------------------------------------------------------------------------------------------- Net assets $6,239,175,973 Shares outstanding 221,967,952 - ------------------------------------------------------------------------------------------------------- Net asset value per share $28.11 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25Xnet asset value per share) $29.82 - ------------------------------------------------------------------------------------------------------- Class B shares - ------------------------------------------------------------------------------------------------------- Net assets $1,049,401,286 Shares outstanding 37,583,780 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $27.92 - ------------------------------------------------------------------------------------------------------- Class C shares - ------------------------------------------------------------------------------------------------------- Net assets $1,052,466,717 Shares outstanding 37,749,749 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $27.88 - ------------------------------------------------------------------------------------------------------- Class I shares - ------------------------------------------------------------------------------------------------------- Net assets $1,529,643,178 Shares outstanding 54,157,708 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $28.24 - ------------------------------------------------------------------------------------------------------- Class W shares - ------------------------------------------------------------------------------------------------------- Net assets $69,115,240 Shares outstanding 2,459,050 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $28.11 - ------------------------------------------------------------------------------------------------------- Class R shares - ------------------------------------------------------------------------------------------------------- Net assets $67,300,136 Shares outstanding 2,399,077 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $28.05 - ------------------------------------------------------------------------------------------------------- Class R1 shares - ------------------------------------------------------------------------------------------------------- Net assets $15,823,359 Shares outstanding 569,973 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $27.76 - ------------------------------------------------------------------------------------------------------- Class R2 shares - ------------------------------------------------------------------------------------------------------- Net assets $12,743,051 Shares outstanding 457,009 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $27.88 - ------------------------------------------------------------------------------------------------------- Statement of Assets and Liabilities - continued Class R3 shares - ------------------------------------------------------------------------------------------------------- Net assets $98,970,496 Shares outstanding 3,541,853 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $27.94 - ------------------------------------------------------------------------------------------------------- Class R4 shares - ------------------------------------------------------------------------------------------------------- Net assets $128,908,771 Shares outstanding 4,592,862 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $28.07 - ------------------------------------------------------------------------------------------------------- Class R5 shares - ------------------------------------------------------------------------------------------------------- Net assets $137,524,361 Shares outstanding 4,888,407 - ------------------------------------------------------------------------------------------------------- Net asset value, offering price, and redemption price per share $28.13 - ------------------------------------------------------------------------------------------------------- Class 529A shares - ------------------------------------------------------------------------------------------------------- Net assets $6,194,000 Shares outstanding 221,501 - ------------------------------------------------------------------------------------------------------- Net asset value per share $27.96 - ------------------------------------------------------------------------------------------------------- Offering price per share (100/94.25Xnet asset value per share) $29.67 - ------------------------------------------------------------------------------------------------------- Class 529B shares - ------------------------------------------------------------------------------------------------------- Net assets $1,822,810 Shares outstanding 65,839 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $27.69 - ------------------------------------------------------------------------------------------------------- Class 529C shares - ------------------------------------------------------------------------------------------------------- Net assets $2,463,482 Shares outstanding 89,021 - ------------------------------------------------------------------------------------------------------- Net asset value and offering price per share $27.67 - ------------------------------------------------------------------------------------------------------- On sales of $50,000 or more, the offering prices 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 Year ended 8/31/07 This statement describes how much your fund earned in investment income and accrued in expenses. It also describes any gains and/or losses generated by fund operations. NET INVESTMENT INCOME - -------------------------------------------------------------------------------------------------- Income Dividends $211,811,318 Interest 6,887,476 Other 4,259 Foreign taxes withheld (2,738,559) - -------------------------------------------------------------------------------------------------- Total investment income $215,964,494 - -------------------------------------------------------------------------------------------------- Expenses Management fee $58,643,696 Distribution and service fees 43,207,617 Program manager fees 21,541 Shareholder servicing costs 14,079,940 Administrative services fee 608,171 Retirement plan administration and services fees 417,805 Independent trustees' compensation 127,519 Custodian fee 945,690 Shareholder communications 536,928 Auditing fees 46,112 Legal fees 135,788 Miscellaneous 782,282 - -------------------------------------------------------------------------------------------------- Total expenses $119,553,089 - -------------------------------------------------------------------------------------------------- Fees paid indirectly (199,928) Reduction of expenses by investment adviser (1,222,554) - -------------------------------------------------------------------------------------------------- Net expenses $118,130,607 - -------------------------------------------------------------------------------------------------- Net investment income $97,833,887 - -------------------------------------------------------------------------------------------------- Statement of Operations - continued REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS - -------------------------------------------------------------------------------------------------- Realized gain (loss) (identified cost basis) Investment transactions $644,506,759 Foreign currency transactions (41,967) - -------------------------------------------------------------------------------------------------- Net realized gain (loss) on investments and foreign currency transactions $644,464,792 - -------------------------------------------------------------------------------------------------- Change in unrealized appreciation (depreciation) Investments $651,126,108 Translation of assets and liabilities in foreign currencies (9,570) - -------------------------------------------------------------------------------------------------- Net unrealized gain (loss) on investments and foreign currency translation $651,116,538 - -------------------------------------------------------------------------------------------------- Net realized and unrealized gain (loss) on investments and foreign currency $1,295,581,330 - -------------------------------------------------------------------------------------------------- Change in net assets from operations $1,393,415,217 - -------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENTS OF CHANGES IN NET ASSETS These statements describe the increases and/or decreases in net assets resulting from operations, any distributions, and any shareholder transactions. YEARS ENDED 8/31 --------------------------------- 2007 2006 CHANGE IN NET ASSETS FROM OPERATIONS - --------------------------------------------------------------------------------------------- Net investment income $97,833,887 $101,398,166 Net realized gain (loss) on investments and foreign currency transactions 644,464,792 303,639,543 Net unrealized gain (loss) on investments and foreign currency translation 651,116,538 521,315,817 - --------------------------------------------------------------------------------------------- Change in net assets from operations $1,393,415,217 $926,353,526 - --------------------------------------------------------------------------------------------- DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------- From net investment income Class A $(74,843,923) $(56,268,368) Class B (7,854,264) (6,779,390) Class C (6,903,771) (4,984,908) Class I (22,163,116) (15,180,640) Class W (379,376) (388) Class R (1,172,262) (1,084,796) Class R1 (55,300) (14,051) Class R2 (73,907) (12,119) Class R3 (607,901) (160,191) Class R4 (984,911) (168,024) Class R5 (1,457,291) (571,771) Class 529A (56,466) (32,149) Class 529B (7,521) (2,874) Class 529C (10,543) (4,307) From net realized gain on investments and foreign currency transactions Class A (161,744,414) (217,446,760) Class B (34,846,208) (58,304,573) Class C (28,334,762) (41,125,028) Class I (37,523,913) (44,433,140) Class W (415,807) -- Class R (3,323,744) (5,057,671) Class R1 (202,116) (65,732) Class R2 (177,924) (32,165) Class R3 (1,332,483) (644,654) Class R4 (1,724,464) (108,618) Class R5 (1,986,525) (2,214,112) Class 529A (129,843) (147,960) Class 529B (31,527) (34,246) Class 529C (45,316) (54,564) - --------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(388,389,598) $(454,933,199) - --------------------------------------------------------------------------------------------- Statements of Changes in Net Assets - continued YEARS ENDED 8/31 ---------------------------------- 2007 2006 Change in net assets from fund share transactions $1,030,845,190 $224,602,050 - ---------------------------------------------------------------------------------------------- Total change in net assets $2,035,870,809 $696,022,377 - ---------------------------------------------------------------------------------------------- NET ASSETS - ---------------------------------------------------------------------------------------------- At beginning of period 8,375,682,051 7,679,659,674 At end of period (including undistributed net investment income of $15,000,329 and $33,778,961, respectively) $10,411,552,860 $8,375,682,051 - ---------------------------------------------------------------------------------------------- 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 life of a particular share class, if shorter). 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 share class (assuming reinvestment of all distributions) held for the entire period. CLASS A YEARS ENDED 8/31 ------------------------------------------------------------------------ 2007 2006 2005 2004 2003 Net asset value, beginning of period $25.20 $23.81 $20.88 $18.03 $17.21 - ------------------------------------------------------------------------------------------------------------------------ INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------ Net investment income (d) $0.30 $0.34 $0.28 $0.23 $0.24 Net realized and unrealized gain (loss) on investments and foreign currency 3.77 2.48 2.91 2.84 0.81 - ------------------------------------------------------------------------------------------------------------------------ Total from investment operations $4.07 $2.82 $3.19 $3.07 $1.05 - ------------------------------------------------------------------------------------------------------------------------ LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------ From net investment income $(0.36) $(0.29) $(0.26) $(0.22) $(0.23) From net realized gain on investments and foreign currency transactions (0.80) (1.14) -- -- -- - ------------------------------------------------------------------------------------------------------------------------ Total distributions declared to shareholders $(1.16) $(1.43) $(0.26) $(0.22) $(0.23) - ------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $28.11 $25.20 $23.81 $20.88 $18.03 - ------------------------------------------------------------------------------------------------------------------------ Total return (%) (r)(s)(t) 16.42 12.36 15.36 17.13(b) 6.22 - ------------------------------------------------------------------------------------------------------------------------ RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------ Expenses before expense reductions (f) 1.13 1.17 1.16 1.18 1.20 Expenses after expense reductions (f) 1.11 1.16 1.16 1.18 N/A Net investment income 1.10 1.40 1.23 1.14 1.41 Portfolio turnover 26 26 24 42 55 Net assets at end of period (000 Omitted) $6,239,176 $4,929,525 $4,554,484 $3,527,854 $3,039,085 - ------------------------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS B YEARS ENDED 8/31 ------------------------------------------------------------------------ 2007 2006 2005 2004 2003 Net asset value, beginning of period $25.04 $23.66 $20.77 $17.94 $17.13 - ------------------------------------------------------------------------------------------------------------------------ INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------ Net investment income (d) $0.12 $0.17 $0.13 $0.10 $0.12 Net realized and unrealized gain (loss) on investments and foreign currency 3.74 2.49 2.90 2.83 0.81 - ------------------------------------------------------------------------------------------------------------------------ Total from investment operations $3.86 $2.66 $3.03 $2.93 $0.93 - ------------------------------------------------------------------------------------------------------------------------ LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------ From net investment income $(0.18) $(0.14) $(0.14) $(0.10) $(0.12) From net realized gain on investments and foreign currency transactions (0.80) (1.14) -- -- -- - ------------------------------------------------------------------------------------------------------------------------ Total distributions declared to shareholders $(0.98) $(1.28) $(0.14) $(0.10) $(0.12) - ------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $27.92 $25.04 $23.66 $20.77 $17.94 - ------------------------------------------------------------------------------------------------------------------------ Total return (%) (r)(s)(t) 15.64 11.66 14.61 16.35(b) 5.50 - ------------------------------------------------------------------------------------------------------------------------ RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------ Expenses before expense reductions (f) 1.78 1.82 1.81 1.82 1.85 Expenses after expense reductions (f) 1.76 1.81 1.81 1.82 N/A Net investment income 0.44 0.72 0.58 0.49 0.76 Portfolio turnover 26 26 24 42 55 Net assets at end of period (000 Omitted) $1,049,401 $1,139,651 $1,262,029 $1,199,074 $1,069,389 - ------------------------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS C YEARS ENDED 8/31 ------------------------------------------------------------------------ 2007 2006 2005 2004 2003 Net asset value, beginning of period $25.01 $23.64 $20.75 $17.93 $17.12 - ------------------------------------------------------------------------------------------------------------------------ INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------ Net investment income (d) $0.12 $0.18 $0.13 $0.10 $0.12 Net realized and unrealized gain (loss) on investments and foreign currency 3.74 2.47 2.90 2.82 0.81 - ------------------------------------------------------------------------------------------------------------------------ Total from investment operations $3.86 $2.65 $3.03 $2.92 $0.93 - ------------------------------------------------------------------------------------------------------------------------ LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------ From net investment income $(0.19) $(0.14) $(0.14) $(0.10) $(0.12) From net realized gain on investments and foreign currency transactions (0.80) (1.14) -- -- -- - ------------------------------------------------------------------------------------------------------------------------ Total distributions declared to shareholders $(0.99) $(1.28) $(0.14) $(0.10) $(0.12) - ------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $27.88 $25.01 $23.64 $20.75 $17.93 - ------------------------------------------------------------------------------------------------------------------------ Total return (%) (r)(s)(t) 15.66 11.65 14.63 16.32(b) 5.52 - ------------------------------------------------------------------------------------------------------------------------ RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------ Expenses before expense reductions (f) 1.78 1.82 1.81 1.82 1.85 Expenses after expense reductions (f) 1.76 1.81 1.81 1.82 N/A Net investment income 0.45 0.74 0.58 0.49 0.76 Portfolio turnover 26 26 24 42 55 Net assets at end of period (000 Omitted) $1,052,467 $881,538 $863,486 $761,669 $648,318 - ------------------------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS I YEARS ENDED 8/31 ------------------------------------------------------------------------ 2007 2006 2005 2004 2003 Net asset value, beginning of period $25.32 $23.91 $20.95 $18.10 $17.27 - ------------------------------------------------------------------------------------------------------------------------ INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------ Net investment income (d) $0.40 $0.43 $0.37 $0.30 $0.30 Net realized and unrealized gain (loss) on investments and foreign currency 3.77 2.49 2.91 2.84 0.82 - ------------------------------------------------------------------------------------------------------------------------ Total from investment operations $4.17 $2.92 $3.28 $3.14 $1.12 - ------------------------------------------------------------------------------------------------------------------------ LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------ From net investment income $(0.45) $(0.37) $(0.32) $(0.29) $(0.29) From net realized gain on investments and foreign currency transactions (0.80) (1.14) -- -- -- - ------------------------------------------------------------------------------------------------------------------------ Total distributions declared to shareholders $(1.25) $(1.51) $(0.32) $(0.29) $(0.29) - ------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $28.24 $25.32 $23.91 $20.95 $18.10 - ------------------------------------------------------------------------------------------------------------------------ Total return (%) (r)(s) 16.78 12.78 15.78 17.47(b) 6.61 - ------------------------------------------------------------------------------------------------------------------------ RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------ Expenses before expense reductions (f) 0.78 0.82 0.81 0.83 0.85 Expenses after expense reductions (f) 0.76 0.81 0.81 0.83 N/A Net investment income 1.45 1.77 1.59 1.50 1.76 Portfolio turnover 26 26 24 42 55 Net assets at end of period (000 Omitted) $1,529,643 $1,162,665 $899,654 $593,364 $296,961 - ------------------------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS W YEARS ENDED 8/31 --------------------------- 2007 2006(i) Net asset value, beginning of period $25.20 $25.04 - ---------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ---------------------------------------------------------------------------------------------------- Net investment income (d) $0.37 $0.24 Net realized and unrealized gain (loss) on investments and foreign currency 3.77 0.02(g) - ---------------------------------------------------------------------------------------------------- Total from investment operations $4.14 $0.26 - ---------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------- From net investment income $(0.43) $(0.10) From net realized gain on investments and foreign currency transactions (0.80) -- - ---------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(1.23) $(0.10) - ---------------------------------------------------------------------------------------------------- Net asset value, end of period $28.11 $25.20 - ---------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 16.73 1.05(n) - ---------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 0.88 0.92(a) Expenses after expense reductions (f) 0.86 0.91(a) Net investment income 1.37 3.32(a) Portfolio turnover 26 26 Net assets at end of period (000 Omitted) $69,115 $8,952 - ---------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R YEARS ENDED 8/31 ---------------------------------------------------------- 2007 2006 2005 2004 2003(i) Net asset value, beginning of period $25.15 $23.76 $20.84 $18.01 $16.53 - ---------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ---------------------------------------------------------------------------------------------------------- Net investment income (d) $0.26 $0.30 $0.25 $0.21 $0.15 Net realized and unrealized gain (loss) on investments and foreign currency 3.75 2.49 2.90 2.82 1.45 - ---------------------------------------------------------------------------------------------------------- Total from investment operations $4.01 $2.79 $3.15 $3.03 $1.60 - ---------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------- From net investment income $(0.31) $(0.26) $(0.23) $(0.20) $(0.12) From net realized gain on investments and foreign currency transactions (0.80) (1.14) -- -- -- - ---------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(1.11) $(1.40) $(0.23) $(0.20) $(0.12) - ---------------------------------------------------------------------------------------------------------- Net asset value, end of period $28.05 $25.15 $23.76 $20.84 $18.01 - ---------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 16.22 12.22 15.21 16.92(b) 9.76(n) - ---------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.28 1.31 1.31 1.33 1.42(a) Expenses after expense reductions (f) 1.26 1.31 1.31 1.33 N/A Net investment income 0.94 1.24 1.10 1.02 1.26(a) Portfolio turnover 26 26 24 42 55 Net assets at end of period (000 Omitted) $67,300 $101,162 $85,302 $47,970 $14,583 - ---------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R1 YEARS ENDED 8/31 ------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $24.93 $23.63 $23.17 - ----------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------- Net investment income (d) $0.10 $0.22 $0.09 Net realized and unrealized gain (loss) on investments and foreign currency 3.72 2.39 0.42(g) - ----------------------------------------------------------------------------------------------------- Total from investment operations $3.82 $2.61 $0.51 - ----------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------- From net investment income $(0.19) $(0.17) $(0.05) From net realized gain on investments and foreign currency transactions (0.80) (1.14) -- - ----------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.99) $(1.31) $(0.05) - ----------------------------------------------------------------------------------------------------- Net asset value, end of period $27.76 $24.93 $23.63 - ----------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 15.55 11.51 2.21(n) - ----------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.92 2.02 2.04(a) Expenses after expense reductions (f) 1.86 1.92 2.04(a) Net investment income 0.36 0.93 0.89(a) Portfolio turnover 26 26 24 Net assets at end of period (000 Omitted) $15,823 $4,639 $574 - ----------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R2 YEARS ENDED 8/31 ------------------------------------ 2007 2006 2005(i) Net asset value, beginning of period $25.03 $23.67 $23.17 - ---------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ---------------------------------------------------------------------------------------------------- Net investment income (d) $0.19 $0.30 $0.11 Net realized and unrealized gain (loss) on investments and foreign currency 3.74 2.42 0.43(g) - ---------------------------------------------------------------------------------------------------- Total from investment operations $3.93 $2.72 $0.54 - ---------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------- From net investment income $(0.28) $(0.22) $(0.04) From net realized gain on investments and foreign currency transactions (0.80) (1.14) -- - ---------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(1.08) $(1.36) $(0.04) - ---------------------------------------------------------------------------------------------------- Net asset value, end of period $27.88 $25.03 $23.67 - ---------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 15.92 11.96 2.34(n) - ---------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.59 1.71 1.73(a) Expenses after expense reductions (f) 1.51 1.57 1.73(a) Net investment income 0.71 1.33 1.49(a) Portfolio turnover 26 26 24 Net assets at end of period (000 Omitted) $12,743 $4,520 $732 - ---------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R3 YEARS ENDED 8/31 ----------------------------------------------------- 2007 2006 2005 2004(i) Net asset value, beginning of period $25.07 $23.71 $20.84 $18.73 - ----------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ----------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.22 $0.31 $0.21 $0.11 Net realized and unrealized gain (loss) on investments and foreign currency 3.75 2.43 2.88 2.12 - ----------------------------------------------------------------------------------------------------------------- Total from investment operations $3.97 $2.74 $3.09 $2.23 - ----------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ----------------------------------------------------------------------------------------------------------------- From net investment income $(0.30) $(0.24) $(0.22) $(0.12) From net realized gain on investments and foreign currency transactions (0.80) (1.14) -- -- - ----------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(1.10) $(1.38) $(0.22) $(0.12) - ----------------------------------------------------------------------------------------------------------------- Net asset value, end of period $27.94 $25.07 $23.71 $20.84 - ----------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 16.07 12.03 14.91 11.93(b)(n) - ----------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ----------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.47 1.56 1.57 1.59(a) Expenses after expense reductions (f) 1.41 1.47 1.57 1.59(a) Net investment income 0.81 1.27 0.93 0.80(a) Portfolio turnover 26 26 24 42 Net assets at end of period (000 Omitted) $98,970 $30,001 $8,316 $414 - ----------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R4 YEARS ENDED 8/31 ----------------------------- 2007 2006 2005(i) Net asset value, beginning of period $25.17 $23.81 $23.29 - ---------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ---------------------------------------------------------------------------------------------------------- Net investment income (d) $0.30 $0.42 $0.15 Net realized and unrealized gain (loss) on investments and foreign currency 3.75 2.39 0.44(g) - ---------------------------------------------------------------------------------------------------------- Total from investment operations $4.05 $2.81 $0.59 - ---------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------- From net investment income $(0.35) $(0.31) $(0.07) From net realized gain on investments and foreign currency transactions (0.80) (1.14) -- - ---------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(1.15) $(1.45) $(0.07) - ---------------------------------------------------------------------------------------------------------- Net asset value, end of period $28.07 $25.17 $23.81 - ---------------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 16.38 12.33 2.53(n) - ---------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.18 1.22 1.23(a) Expenses after expense reductions (f) 1.16 1.22 1.23(a) Net investment income 1.07 1.80 1.94(a) Portfolio turnover 26 26 24 Net assets at end of period (000 Omitted) $128,909 $46,731 $400 - ---------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R5 YEARS ENDED 8/31 ----------------------------- 2007 2006 2005(i) Net asset value, beginning of period $25.22 $23.83 $23.29 - --------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------- Net investment income (d) $0.39 $0.45 $0.15 Net realized and unrealized gain (loss) on investments and foreign currency 3.75 2.43 0.47(g) - --------------------------------------------------------------------------------------------------- Total from investment operations $4.14 $2.88 $0.62 - --------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------- From net investment income $(0.43) $(0.35) $(0.08) From net realized gain on investments and foreign currency transactions (0.80) (1.14) -- - --------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(1.23) $(1.49) $(0.08) - --------------------------------------------------------------------------------------------------- Net asset value, end of period $28.13 $25.22 $23.83 - --------------------------------------------------------------------------------------------------- Total return (%) (r)(s) 16.70 12.64 2.68(n) - --------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 0.88 0.92 0.92(a) Expenses after expense reductions (f) 0.86 0.91 0.92(a) Net investment income 1.39 1.80 1.57(a) Portfolio turnover 26 26 24 Net assets at end of period (000 Omitted) $137,524 $60,124 $51 - --------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529A YEARS ENDED 8/31 ---------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $25.09 $23.71 $20.80 $18.00 $17.21 - ---------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ---------------------------------------------------------------------------------------------------- Net investment income (d) $0.23 $0.28 $0.23 $0.18 $0.20 Net realized and unrealized gain (loss) on investments and foreign currency 3.74 2.48 2.90 2.80 0.81 - ---------------------------------------------------------------------------------------------------- Total from investment operations $3.97 $2.76 $3.13 $2.98 $1.01 - ---------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------- From net investment income $(0.30) $(0.24) $(0.22) $(0.18) $(0.22) From net realized gain on investments and foreign currency transactions (0.80) (1.14) -- -- -- - ---------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(1.10) $(1.38) $(0.22) $(0.18) $(0.22) - ---------------------------------------------------------------------------------------------------- Net asset value, end of period $27.96 $25.09 $23.71 $20.80 $18.00 - ---------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 16.09 12.11 15.09 16.63(b) 5.98 - ---------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.38 1.42 1.41 1.43 1.48 Expenses after expense reductions (f) 1.36 1.41 1.41 1.43 N/A Net investment income 0.85 1.18 0.99 0.91 1.20 Portfolio turnover 26 26 24 42 55 Net assets at end of period (000 Omitted) $6,194 $3,947 $2,914 $1,673 $806 - ---------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529B YEARS ENDED 8/31 ---------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $24.87 $23.52 $20.67 $17.87 $17.12 - ---------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ---------------------------------------------------------------------------------------------------- Net investment income (d) $0.06 $0.13 $0.08 $0.05 $0.09 Net realized and unrealized gain (loss) on investments and foreign currency 3.71 2.45 2.87 2.81 0.80 - ---------------------------------------------------------------------------------------------------- Total from investment operations $3.77 $2.58 $2.95 $2.86 $0.89 - ---------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------- From net investment income $(0.15) $(0.09) $(0.10) $(0.06) $(0.14) From net realized gain on investments and foreign currency transactions (0.80) (1.14) -- -- -- - ---------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.95) $(1.23) $(0.10) $(0.06) $(0.14) - ---------------------------------------------------------------------------------------------------- Net asset value, end of period $27.69 $24.87 $23.52 $20.67 $17.87 - ---------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 15.37 11.39 14.32 16.03(b) 5.29 - ---------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 2.03 2.06 2.06 2.07 2.13 Expenses after expense reductions (f) 2.01 2.06 2.06 2.07 N/A Net investment income 0.20 0.53 0.34 0.27 0.52 Portfolio turnover 26 26 24 42 55 Net assets at end of period (000 Omitted) $1,823 $946 $655 $439 $181 - ---------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529C YEARS ENDED 8/31 ---------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $24.86 $23.51 $20.66 $17.86 $17.11 - ---------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ---------------------------------------------------------------------------------------------------- Net investment income (d) $0.06 $0.12 $0.08 $0.05 $0.09 Net realized and unrealized gain (loss) on investments and foreign currency 3.70 2.46 2.87 2.81 0.80 - ---------------------------------------------------------------------------------------------------- Total from investment operations $3.76 $2.58 $2.95 $2.86 $0.89 - ---------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------- From net investment income $(0.15) $(0.09) $(0.10) $(0.06) $(0.14) From net realized gain on investments and foreign currency transactions (0.80) (1.14) -- -- -- - ---------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.95) $(1.23) $(0.10) $(0.06) $(0.14) - ---------------------------------------------------------------------------------------------------- Net asset value, end of period $27.67 $24.86 $23.51 $20.66 $17.86 - ---------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 15.34 11.39 14.32 16.03(b) 5.31 - ---------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 2.03 2.06 2.06 2.07 2.13 Expenses after expense reductions (f) 2.01 2.06 2.06 2.07 N/A Net investment income 0.20 0.51 0.36 0.26 0.55 Portfolio turnover 26 26 24 42 55 Net assets at end of period (000 Omitted) $2,463 $1,279 $1,062 $643 $352 - ---------------------------------------------------------------------------------------------------- Any redemption fees charged by the fund during the 2004 and 2005 fiscal years resulted in a per share impact of less than $0.01. (a) Annualized. (b) 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. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (g) 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. (i) For the period from the class' inception, December 31, 2002 (Class R), October 31, 2003 (Class R3), April 1, 2005 (Classes R1, R2, R4, and R5) and May 1, 2006 (Class W) through the stated period end. (n) Not annualized. (r) Certain expenses have been reduced without which performance would have been lower. (s) From time to time the fund may receive proceeds from litigation settlements, without which performance would be lower. (t) Total returns do not include any applicable sales charges. SEE NOTES TO FINANCIAL STATEMENTS NOTES TO FINANCIAL STATEMENTS (1) BUSINESS AND ORGANIZATION MFS Value Fund (the fund) is a 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, including restricted equity securities, are generally valued at the last sale or official closing price as reported by an independent pricing service on the market or exchange on which they are primarily traded. For securities for which there were no sales reported that day, equity securities are generally valued at the last quoted daily bid quotation as reported by an independent pricing service on the market or exchange on which they are primarily traded. For securities held short for which there were no sales reported for the day, the position is generally valued at the last quoted daily ask quotation as reported by an independent pricing service on the market or exchange on which such securities are primarily traded. Short-term instruments with a maturity at issuance of 60 days or less may be valued at amortized cost, which approximates market value. Open-end investment companies are generally valued at their net asset value per share. Securities and other assets generally valued on the basis of information from an independent pricing service may also be valued at a broker-dealer bid quotation. The values of foreign securities and other assets and liabilities expressed in foreign currencies are converted to U.S. dollars using the mean of bid and asked prices for rates reported by an independent pricing service. The Board of Trustees has delegated primary responsibility for determining or causing to be determined the value of the fund's investments (including any fair valuation) to the adviser pursuant to valuation policies and procedures approved by the Board. If the adviser determines that reliable market quotations are not readily available, investments are valued at fair value as determined in good faith by the adviser in accordance with such procedures under the oversight of the Board of Trustees. Under the fund's valuation policies and procedures, market quotations are not considered to be readily available for many types of debt instruments and certain types of derivatives. These investments are generally valued at fair value based on information from independent pricing services. In addition, investments may be valued at fair value if the adviser determines that an investment's value has been materially affected by events occurring after the close of the exchange or market on which the investment is principally traded (such as foreign exchange or market) and prior to the determination of the fund's net asset value, or after the halting of trading of a specific security where trading does not resume prior to the close of the exchange or market on which the security is principally traded. Events that occur on a frequent basis after foreign markets close (such as developments in foreign markets and significant movements in the U.S. markets) and prior to the determination of the fund's net asset value may be deemed to have a material affect on the value of securities traded in foreign markets. Accordingly, the fund's foreign equity securities may often be valued at fair value. The adviser may rely on independent pricing services or other information (such as the correlation with price movements of similar securities in the same or other markets; the type, cost and investment characteristics of the security; the business and financial condition of the issuer; and trading and other market data) to assist in determining whether to fair value and at what value to fair value an investment. The value of an investment for purposes of calculating the fund's net asset value can differ depending on the source and method used to determine value. When fair valuation is used, the value of investments used to determine the fund's net asset value may differ from quoted or published prices for the same investments. In September 2006, FASB Statement No. 157, Fair Value Measurements (the "Statement") was issued, and is effective for fiscal years beginning after November 15, 2007 and for all interim periods within those fiscal years. This Statement provides a single definition of fair value, a hierarchy for measuring fair value and expanded disclosures about fair value measurements. Management is evaluating the application of the Statement to the fund, and believes the impact will be limited to expanded disclosures resulting from the adoption of this Statement in the fund's financial statements. 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 and other funds managed by 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. Net 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, 2007 the value of securities loaned was $293,829,947. These loans were collateralized by cash of $286,667,246 and U.S. Treasury obligations of $14,483,455. INDEMNIFICATIONS - Under the fund's organizational documents, its officers and trustees may be indemnified against certain liabilities and expenses arising out of the performance of their duties to the fund. Additionally, in the normal course of business, the fund enters into agreements with service providers that may contain indemnification clauses. The fund's maximum exposure under these agreements is unknown as this would involve future claims that may be made against the fund that have not yet occurred. 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. Certain dividends from foreign securities will be recorded when the fund is informed of the dividend if such information is obtained subsequent to 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. Any proceeds received from litigation involving portfolio holdings are reflected in the Statement of Operations in realized gain/loss if the security has been disposed of by the fund or in unrealized gain/loss if the security is still held by the fund. Any other proceeds from litigation not related to portfolio holdings are reflected as other income in the Statement of Operations. 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. This amount, for the year ended August 31, 2007, is shown as a reduction of total expenses on the Statement of Operations. TAX MATTERS AND DISTRIBUTIONS - The fund intends to qualify as a regulated investment company, as defined under Subchapter M of the Internal Revenue Code, and to distribute all of its taxable income, including realized capital gains. Accordingly, no provision for federal income tax is required in the financial statements. Foreign taxes, if any, have been accrued by the fund in the accompanying financial statements. Distributions to shareholders are recorded on the ex-dividend date. Income and capital gain distributions are determined in accordance with income tax regulations, which may differ from U.S. generally accepted accounting principles. Certain capital accounts in the financial statements are periodically adjusted for permanent differences in order to reflect their tax character. These adjustments have no impact on net assets or net asset value per share. Temporary differences which arise from recognizing certain items of income, expense, gain or loss in different periods for financial statement and tax purposes will reverse at some time in the future. Distributions in excess of net investment income or net realized gains are temporary overdistributions for financial statement purposes resulting from differences in the recognition or classification of income or distributions for financial statement and tax purposes. Book/tax differences primarily relate to wash sale loss deferrals and treating a portion of the proceeds from redemptions as a distribution for tax purposes. The tax character of distributions declared to shareholders is as follows: 8/31/07 8/31/06 Ordinary income (including any short-term capital gains) $125,426,306 $90,625,348 Long-term capital gain 262,963,292 364,307,851 ---------------------------------------------------------------- Total distributions $388,389,598 $454,933,199 The federal tax cost and the tax basis components of distributable earnings were as follows: AS OF 8/31/07 Cost of investments $8,282,609,839 ---------------------------------------------------------------- Gross appreciation $2,541,769,568 Gross depreciation (137,932,511) ---------------------------------------------------------------- Net unrealized appreciation (depreciation) $2,403,837,057 Undistributed ordinary income 70,525,120 Undistributed long-term capital gain 479,810,679 Other temporary differences (12,886) In June 2006, FASB Interpretation No. 48, Accounting for Uncertainty in Income Taxes (the "Interpretation") was issued, and is effective for fiscal years beginning after December 15, 2006 and is to be applied to all open tax years as of the effective date. On December 22, 2006, the SEC delayed the implementation of the Interpretation for regulated investment companies for an additional six months. This Interpretation prescribes a minimum threshold for financial statement recognition of the benefit of a tax position taken or expected to be taken in a tax return, and requires certain expanded disclosures. Management has evaluated the application of the Interpretation to the fund, and has determined that there is no impact resulting from the adoption of this Interpretation on the fund's financial statements. 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 management and related administrative services and facilities to the fund. The management fee is computed daily and paid monthly at an annual rate of 0.60% of the fund's average daily net assets. The investment adviser has agreed in writing to reduce its management fee to 0.55% of average daily net assets in excess of $7.5 billion. This written agreement may be rescinded only upon consent of the fund's Board of Trustees. This management fee reduction amounted to $1,136,975, which is shown as a reduction of total expenses in the Statement of Operations. The management fee incurred for the year ended August 31, 2007 was equivalent to an annual effective rate of 0.59% of the fund's average daily net assets. DISTRIBUTOR - MFS Fund Distributors, Inc. (MFD), a wholly-owned subsidiary of MFS, as distributor, received $561,082 and $3,519 for the year ended August 31, 2007, 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 MFD and another component of the plan is a service fee paid to MFD. MFD may subsequently pay all, or a portion, of the distribution and/or service fees to financial intermediaries. Distribution Fee Plan Table: TOTAL ANNUAL DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE AND SERVICE FEE RATE FEE RATE PLAN (d) RATE (e) FEE Class A 0.10% 0.25% 0.35% 0.35% $20,400,573 Class B 0.75% 0.25% 1.00% 1.00% 11,548,292 Class C 0.75% 0.25% 1.00% 1.00% 10,047,929 Class W 0.10% -- 0.10% 0.10% 28,423 Class R 0.25% 0.25% 0.50% 0.50% 486,428 Class R1 0.50% 0.25% 0.75% 0.75% 69,894 Class R2 0.25% 0.25% 0.50% 0.50% 41,604 Class R3 0.25% 0.25% 0.50% 0.50% 318,920 Class R4 -- 0.25% 0.25% 0.25% 213,481 Class 529A 0.25% 0.25% 0.50% 0.35% 18,358 Class 529B 0.75% 0.25% 1.00% 1.00% 14,120 Class 529C 0.75% 0.25% 1.00% 1.00% 19,595 - ----------------------------------------------------------------------------------------------------------- Total Distribution and Service Fees $43,207,617 (d) 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. (e) The annual effective rates represent actual fees incurred under the distribution plan for the year ended August 31, 2007 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 in effect and will be implemented on such date as the fund's Board of Trustees may determine. 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. All contingent deferred sales charges are paid to MFD and during the year ended August 31, 2007, were as follows: AMOUNT Class A $77,740 Class B $1,002,063 Class C $55,309 Class 529B $662 Class 529C $38 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% of the average daily net assets attributable to each 529 share class. The fee is based on average daily net assets and is currently established at 0.25% annually of average daily 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, 2007, were as follows: AMOUNT Class 529A $13,112 Class 529B 3,530 Class 529C 4,899 -------------------------------------------------- Total Program Manager Fees $21,541 SHAREHOLDER SERVICING AGENT - MFS Service Center, Inc. (MFSC), a wholly-owned subsidiary of MFS, receives a fee from the fund for its services as shareholder servicing agent calculated as a percentage of the average daily net assets of the fund as determined periodically under the supervision of the fund's Board of Trustees. For the year ended August 31, 2007, the fee was $5,964,633, which equated to 0.0610% annually of the fund's average daily net assets. MFSC also receives payment from the fund for out-of-pocket expenses, sub-accounting and other shareholder servicing costs which may be paid to affiliated and unaffiliated service providers. For the year ended August 31, 2007, these out-of-pocket expenses, sub-accounting and other shareholder servicing costs amounted to $7,451,157. The fund may also pay shareholder servicing related costs directly to non-related parties. Effective May 1, 2007, under a Special Servicing Agreement among MFS, each MFS fund which invests in other MFS funds ("MFS fund-of-funds") and each underlying fund in which a MFS fund-of-funds invests ("underlying funds"), each underlying fund may pay a portion of each MFS fund-of-fund's transfer agent-related expenses, including sub-accounting fees payable to financial intermediaries, to the extent such payments do not exceed the benefits realized or expected to be realized by the underlying fund from the investment in the underlying fund by the MFS fund-of-fund. For the year ended August 31, 2007, these costs for the fund amounted to $279,477 and are reflected in the shareholder servicing costs on the Statement of Operations. ADMINISTRATOR - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to the fund. Under an administrative services agreement, the fund partially reimburses MFS the costs incurred to provide these services. The fund is charged a fixed amount plus a fee based on average daily net assets. The fund's annual fixed amount is $17,500. The administrative services fee incurred for the year ended August 31, 2007 was equivalent to an annual effective rate of 0.0062% 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 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. MFS may subsequently pay all, or a portion, of the retirement plan administration and services fee to affiliated or unaffiliated third parties. For the year ended August 31, 2007, the fund paid MFS an annual retirement plan administration and services fee up to the following annual percentage rates of each class' average daily net assets: BEGINNING OF ANNUAL PERIOD THROUGH EFFECTIVE EFFECTIVE TOTAL 3/31/07 4/01/07 RATE (g) AMOUNT Class R1 0.45% 0.35% 0.35% $36,608 Class R2 0.40% 0.25% 0.25% 26,437 Class R3 0.25% 0.15% 0.15% 123,749 Class R4 0.15% 0.15% 0.15% 128,088 Class R5 0.10% 0.10% 0.10% 102,923 - ------------------------------------------------------------------------------- Total Retirement Plan Administration and Services Fees $417,805 (g) Prior to April 1, 2007, MFS had agreed in writing to waive a portion of the retirement plan administration and services fee equal to 0.10% for Class R1, 0.15% for Class R2, and 0.10% for Class R3 shares. This agreement was discontinued on March 31, 2007. On April 1, 2007, the annual retirement plan administration and services fee for Class R1, Class R2, and Class R3 shares was lowered to 0.35%, 0.25%, and 0.15%, respectively. For the year ended August 31, 2007, the waiver amounted to $37,698 and is reflected as a reduction of total expenses in the Statement of Operations. TRUSTEES' AND OFFICERS' 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 or officers of the fund who are also officers of the investment adviser, 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 certain retired independent trustees which resulted in a pension expense of $1,111. This amount is included in independent trustees' compensation for the year ended August 31, 2007. The liability for deferred retirement benefits payable to certain retired independent trustees amounted to $9,504 at August 31, 2007, and is included in payable for independent 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. The funds can terminate the Agreement with Tarantino LLC at any time under the terms of the Agreement. For the year ended August 31, 2007, the fee paid to Tarantino LLC was $61,125. MFS has agreed to reimburse the fund for a portion of the payments made by the funds to Tarantino LLC in the amount of $47,881 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. (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 $41,168,451 $1,533,157 - -------------------------------------------------------------------------------- Investments (non-U.S. government securities) $3,174,107,943 $2,464,396,192 - -------------------------------------------------------------------------------- (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 YEAR ENDED 8/31/07 8/31/06(i) SHARES AMOUNT SHARES AMOUNT Shares sold Class A 82,897,137 $2,284,935,155 60,803,749 $1,470,033,391 Class B 4,097,957 110,802,297 4,311,711 103,369,845 Class C 7,629,570 207,679,463 5,194,373 124,008,983 Class I 12,095,417 335,715,810 9,361,214 225,782,424 Class W 2,226,482 62,441,031 355,829 8,707,026 Class R 1,032,032 28,054,647 2,171,753 51,431,346 Class R1 699,966 19,124,968 219,186 5,288,225 Class R2 576,831 15,856,845 192,249 4,708,059 Class R3 4,004,768 109,306,754 1,329,770 31,972,342 Class R4 5,573,616 153,833,399 2,221,181 53,759,704 Class R5 3,481,769 95,988,445 2,712,139 63,685,240 Class 529A 76,026 2,073,352 36,431 876,014 Class 529B 30,024 813,107 9,630 228,856 Class 529C 46,425 1,253,885 8,588 204,251 - --------------------------------------------------------------------------------------------------------- 124,468,020 $3,427,879,158 88,927,803 $2,144,055,706 Shares issued to shareholders in reinvestment of distributions Class A 7,002,269 $186,811,539 9,462,744 $221,685,921 Class B 1,327,246 35,109,854 2,278,450 53,009,523 Class C 834,009 22,045,467 1,259,073 29,257,616 Class I 2,113,899 56,679,995 2,428,532 57,190,569 Class W 25,338 685,714 16 388 Class R 157,270 4,176,605 246,252 5,756,203 Class R1 9,740 257,416 3,439 79,783 Class R2 9,477 251,790 1,901 44,284 Class R3 72,416 1,930,007 34,444 803,843 Class R4 101,166 2,708,973 11,675 276,619 Class R5 12,968 364,151 138 3,249 Class 529A 7,005 186,245 7,720 180,072 Class 529B 1,484 39,048 1,606 37,120 Class 529C 2,123 55,859 2,549 58,871 - --------------------------------------------------------------------------------------------------------- 11,676,410 $311,302,663 15,738,539 $368,384,061 Shares reacquired Class A (63,526,514) $(1,756,904,603) (65,973,843) $(1,589,756,950) Class B (13,355,675) (365,457,041) (14,415,374) (346,071,665) Class C (5,960,195) (162,740,623) (7,736,571) (185,371,128) Class I (5,977,035) (167,400,144) (3,495,733) (85,149,119) Class W (147,993) (4,084,628) (622) (15,405) Class R (2,812,920) (77,996,184) (1,985,641) (48,501,782) Class R1 (325,820) (8,841,369) (60,823) (1,476,315) Class R2 (309,910) (8,484,016) (44,464) (1,089,173) Class R3 (1,731,828) (47,281,104) (518,447) (12,427,593) Class R4 (2,938,269) (80,696,299) (393,300) (9,578,895) Class R5 (990,264) (27,530,499) (330,497) (8,024,795) Class 529A (18,872) (514,741) (9,716) (232,975) Class 529B (3,710) (102,409) (1,056) (25,650) Class 529C (10,964) (302,971) (4,854) (116,272) - --------------------------------------------------------------------------------------------------------- (98,109,969) $(2,708,336,631) (94,970,941) $(2,287,837,717) Net change Class A 26,372,892 $714,842,091 4,292,650 $101,962,362 Class B (7,930,472) (219,544,890) (7,825,213) (189,692,297) Class C 2,503,384 66,984,307 (1,283,125) (32,104,529) Class I 8,232,281 224,995,661 8,294,013 197,823,874 Class W 2,103,827 59,042,117 355,223 8,692,009 Class R (1,623,618) (45,764,932) 432,364 8,685,767 Class R1 383,886 10,541,015 161,802 3,891,693 Class R2 276,398 7,624,619 149,686 3,663,170 Class R3 2,345,356 63,955,657 845,767 20,348,592 Class R4 2,736,513 75,846,073 1,839,556 44,457,428 Class R5 2,504,473 68,822,097 2,381,780 55,663,694 Class 529A 64,159 1,744,856 34,435 823,111 Class 529B 27,798 749,746 10,180 240,326 Class 529C 37,584 1,006,773 6,283 146,850 - --------------------------------------------------------------------------------------------------------- 38,034,461 $1,030,845,190 9,695,401 $224,602,050 (i) For the period from the class' inception, May 1, 2006 (Class W) through the stated period end. The fund is one of several mutual funds in which the MFS funds-of-funds may invest. The MFS funds-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 Conservative Allocation Fund, MFS Moderate Allocation Fund, MFS Growth Allocation Fund and MFS Aggressive Growth Allocation Fund were the owners of record of approximately 1%, 3%, 4% and 2% respectively, of the value of outstanding voting shares. In addition, the MFS Lifetime Retirement Income Fund, the MFS Lifetime 2010 Fund, the MFS Lifetime 2020 Fund, the MFS Lifetime 2030 Fund and the MFS Lifetime 2040 Fund were each the owners of record of less than 1% of the value of outstanding voting shares. (6) LINE OF CREDIT The fund and other funds managed by MFS participate in a $1 billion unsecured committed line of credit provided by a syndication of banks under a credit agreement. In addition, the fund and other funds managed by MFS have established uncommitted borrowing arrangements with certain banks. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its borrowings, generally at a rate equal to the Federal Reserve funds rate plus 0.30%. In addition, a commitment fee, based on the average daily, unused portion of the committed line of credit, is allocated among the participating funds at the end of each calendar quarter. For the year ended August 31, 2007, the fund's commitment fee and interest expense were $49,205 and $347, respectively, and are included in miscellaneous expense on the Statement of Operations. (7) GAIN CONTINGENCY The fund's investment adviser, MFS, was the subject of an administrative proceeding concerning market timing which resulted in the Securities and Exchange Commission (the "SEC") entering an order approving a settlement with MFS and two of its former officers (the "Settlement Order"). Under the terms of the Settlement Order, MFS transferred $175 million in disgorgement and $50 million in penalty (the "Payments") to a Fair Fund established by the SEC, from which settlement funds will be distributed to current and former shareholders of the fund and certain other affected MFS retail funds. The Payments will be distributed to shareholders in accordance with a plan developed by an independent distribution consultant (the "IDC") in consultation with MFS and the Board of Trustees of the MFS retail funds. The plan was approved in July 2007 by the SEC. Pursuant to the distribution plan, after the distributions to eligible shareholders have been made, residual amounts, if any, may be available for distribution to the fund and certain other affected MFS retail funds. Payments made by third parties into other settlement funds to remediate harm caused by the third party's late or excessive trading in certain MFS funds may also become part of the residual amounts. At this time, the residual amounts, if any, cannot be reasonably estimated and the fund has not accrued an estimate for any amounts to be received. 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, 2007, 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, 2007, by correspondence with the Fund's 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, 2007, 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 16, 2007 TRUSTEES AND OFFICERS -- IDENTIFICATION AND BACKGROUND The Trustees and officers of the Trust, as of October 1, 2007, 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(h) OTHER DIRECTORSHIPS(j) - ------------------- ------------------- --------------- ---------------------------------- INTERESTED TRUSTEES Robert J. Manning(k) Trustee February 2004 Massachusetts Financial Services (born 10/20/63) Company, Chief Executive Officer, President, Chief Investment Officer and Director Robert C. Pozen(k) Trustee February 2004 Massachusetts Financial Services (born 8/08/46) Company, Chairman (since February 2004); MIT Sloan School (education), Senior Lecturer (since 2006); 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 5/01/36) of Trustees Enterprises (diversified services company), Chairman, Trustee and Chief Executive Officer (until November 2000) Robert E. Butler(n) Trustee January 2006 Consultant - regulatory and (born 11/29/41) compliance matters (since July 2002); PricewaterhouseCoopers LLP (professional services firm), Partner (until 2002) Lawrence H. Cohn, M.D. Trustee August 1993 Brigham and Women's Hospital, (born 3/11/37) Chief of Cardiac Surgery (2005); Harvard Medical School, Professor of Cardiac Surgery; Physician Director of Medical Device Technology for Partners HealthCare David H. Gunning Trustee January 2004 Retired; Cleveland-Cliffs Inc. (born 5/30/42) (mining products and service provider), Vice Chairman/Director (until May 2007); Portman Limited (mining), Director (since 2005); 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 9/27/41) consultant; Capitol Entertainment Management Company (video franchise), Vice Chairman; Atlantic Coast Tan (tanning salons), Vice Chairman (since 2002) 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) Lawrence T. Perera Trustee July 1981 Hemenway & Barnes (attorneys), (born 6/23/35) Partner J. Dale Sherratt Trustee August 1993 Insight Resources, Inc. (born 9/23/38) (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 New Profit, Inc. (venture (born 8/05/57) philanthropy), Partner (since 2006); Private investor; Prism Venture Partners (venture capital), Co-founder and General Partner (until June 2004); The Travelers Companies (commercial property liability insurance), Director Robert W. Uek Trustee January 2006 Retired (since 1999); (born 5/18/41) PricewaterhouseCoopers LLP (professional services firm), Partner (until 1999); Consultant to investment company industry (since 2000); TT International Funds (mutual fund complex), Trustee (2000 until 2005); Hillview Investment Trust II Funds (mutual fund complex), Trustee (2000 until 2005) OFFICERS Maria F. Dwyer(k) President November 2005 Massachusetts Financial Services (born 12/01/58) Company, Executive Vice President and Chief Regulatory Officer (since March 2004) Chief Compliance Officer (since December 2006); Fidelity Management & Research Company, Vice President (prior to March 2004); Fidelity Group of Funds, President and Treasurer (prior to March 2004) Tracy Atkinson(k) 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(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 1/18/74) and Assistant Clerk Company, Vice President and Senior Counsel (since April 2003); Kirkpatrick & Lockhart LLP (law firm), Associate (prior to April 2003) Ethan D. Corey(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 11/21/63) and Assistant Clerk Company, Special Counsel (since December 2004); Dechert LLP (law firm), Counsel (prior to December 2004) David L. DiLorenzo(k) Assistant Treasurer July 2005 Massachusetts Financial Services (born 8/10/68) Company, Vice President (since June 2005); JP Morgan Investor Services, Vice President (prior to June 2005) Mark D. Fischer(k) Assistant Treasurer July 2005 Massachusetts Financial Services (born 10/27/70) Company, Vice President (since May 2005); JP Morgan Investment Management Company, Vice President (prior to May 2005) Brian E. Langenfeld(k) Assistant Secretary June 2006 Massachusetts Financial Services (born 3/07/73) and Assistant Clerk Company, Assistant Vice President and Counsel (since May 2006); John Hancock Advisers, LLC, Assistant Vice President and Counsel (May 2005 to April 2006); John Hancock Advisers, LLC, Attorney and Assistant Secretary (prior to May 2005) Ellen Moynihan(k) Assistant Treasurer April 1997 Massachusetts Financial Services (born 11/13/57) Company, Senior Vice President Susan S. Newton(k) Assistant Secretary May 2005 Massachusetts Financial Services (born 3/07/50) and Assistant Clerk Company, Senior Vice President and 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(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 11/05/70) and Assistant Clerk Company, Vice President and Senior Counsel (since June 2004); Bingham McCutchen LLP (law firm), Associate (prior to June 2004) Mark N. Polebaum(k) Secretary and Clerk January 2006 Massachusetts Financial Services (born 5/01/52) Company, Executive Vice President, General Counsel and Secretary (since January 2006); Wilmer Cutler Pickering Hale and Dorr LLP (law firm), Partner (prior to January 2006) Frank L. Tarantino Independent Chief June 2004 Tarantino LLC (provider of (born 3/07/44) Compliance Officer compliance services), Principal (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 (prior to March 2003) James O. Yost(k) Assistant Treasurer September 1990 Massachusetts Financial Services (born 6/12/60) Company, Senior Vice President - ------------ (h) Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served continuously since appointment unless indicated otherwise. (j) Directorships or trusteeships of companies required to report to the Securities and Exchange Commission (i.e., "public companies"). (k) "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. (n) In 2004 and 2005, Mr. Butler provided consulting services to the independent compliance consultant retained by MFS pursuant to its settlement with the SEC concerning market timing and related matters. The terms of that settlement required that compensation and expenses related to the independent compliance consultant be borne exclusively by MFS and, therefore, MFS paid Mr. Butler for the services he rendered to the independent compliance consultant. In 2004 and 2005, MFS paid Mr. Butler a total of $351,119.29. The Trust held a shareholders' meeting in 2005 to elect Trustees, and will hold a shareholders' meeting at least once every five years thereafter, to elect Trustees. Each Trustee (except Mr. Butler and Mr. Uek) has been elected by share- holders 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. Butler, Gutow, Sherratt and Uek and Ms. 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 January 1, 2007, the Trustees served as board members of 97 funds within the MFS Family of Funds. 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 MANAGERS Nevin Chitkara 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, 2007 ("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 that included, among other items: (i) information provided by Lipper Inc. on the investment performance of the Fund for various time periods ended December 31, 2006 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 ("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 MFS peer funds, (iii) information provided by MFS on the advisory fees of comparable portfolios of other clients of MFS, including institutional separate accounts 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 in 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, 2006, which the Trustees believed was a long enough period to reflect differing market conditions. The total return performance of the Fund's Class A shares was in the 1st quintile relative to the other funds in the universe for this three-year period (the 1st quintile being the best performers and the 5th quintile being the worst performers). The total return performance of the Fund's Class A shares was in the 1st quintile for each of the one and five-year periods ended December 31, 2006 relative to the Lipper performance universe. Because of the passage of time, these performance results may 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 daily 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 that MFS has agreed in writing to waive a portion of its advisory fee on average daily net assets over $7.5 billion, which may not be changed without the Trustees' approval. The Trustees also considered that, according to the Lipper data (which takes into account the advisory fee waiver), 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 the breakpoint described above. 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 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 that 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, which may include 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, if applicable, to pay for investment research (excluding third-party research for which MFS pays directly), 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, 2007. A discussion regarding the Board's most recent review and renewal of the Fund's investment advisory agreement will be available on or before November 1, 2007 by clicking on the fund's name under "Select a fund" on the MFS Web site (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 100 F Street, NE, Room 1580 Washington, D.C. 20549 Information on the operation of the Public Reference Room may be obtained by calling the Commission at 1-202-551-5850. The fund's Form N-Q is available on the EDGAR database on the Commission's Internet Web site 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) The fund will notify shareholders of amounts for use in preparing 2007 income tax forms in January 2008. The following information is provided pursuant to provisions of the Internal Revenue Code. The fund designates the maximum amount allowable as qualified dividend income eligible for the 15% tax rate. The fund designates $307,896,308 as capital gain dividends paid during the fiscal year. For corporate shareholders, 100.00% of the ordinary income dividends paid during the fiscal year qualify for the corporate dividends received deduction. MFS(R) PRIVACY NOTICE Privacy is a concern for every investor today. At MFS Investment Management(R) and the MFS funds, we take this concern very seriously. We want you to understand our policies about the investment products and services that we offer, and how we protect the nonpublic personal information of investors who have a direct relationship with us and our wholly owned subsidiaries. Throughout our business relationship, you provide us with personal information. We maintain information and records about you, your investments, and the services you use. Examples of the nonpublic personal information we maintain include o data from investment applications and other forms o share balances and transactional history with us, our affiliates, or others o facts from a consumer reporting agency We do not disclose any nonpublic personal information about our customers or former customers to anyone, except as permitted by law. We may share nonpublic personal information with third parties or certain of our affiliates in connection with servicing your account or processing your transactions. We may share information with companies or financial institutions that perform marketing services on our behalf or with other financial institutions with which we have joint marketing arrangements, subject to any legal requirements. Authorization to access your nonpublic personal information is limited to appropriate personnel who provide products, services, or information to you. We maintain physical, electronic, and procedural safeguards to help protect the personal information we collect about you. If you have any questions about the MFS privacy policy, please call 1-800-225-2606 any business day between 8 a.m. and 8 p.m. Eastern time. Note: If you own MFS products or receive MFS services in the name of a third party such as a bank or broker-dealer, their privacy policy may apply to you instead of ours. CONTACT US WEB SITE MAILING ADDRESS mfs.com MFS Service Center, Inc. P.O. Box 55824 MFS TALK Boston, MA 02205-5824 1-800-637-8255 24 hours a day OVERNIGHT MAIL MFS Service Center, Inc. ACCOUNT SERVICE AND 500 Boylston Street LITERATURE Boston, MA 02116-3741 SHAREHOLDERS 1-800-225-2606 8 a.m. to 8 p.m. ET INVESTMENT PROFESSIONALS 1-800-343-2829 8 a.m. to 8 p.m. ET RETIREMENT PLAN SERVICES 1-800-637-1255 8 a.m. to 8 p.m. ET - ------------------------------------------------------------------------------- Go paperless with eDELIVERY: Arrange to have MFS(R) send prospectuses, reports, and proxies directly to your e-mail inbox. You'll get timely information and less clutter in your mailbox (not to mention help your fund save printing and postage costs). SIGN UP: If your account is registered with us, simply go to MFS.COM, log in to your account via MFS(R) Access, and select the eDelivery sign up options. If you own your MFS fund shares through a financial institution or a retirement plan, MFS(R) TALK, MFS Access, and eDelivery may not be available to you. - ------------------------------------------------------------------------------- M F S(R) INVESTMENT MANAGEMENT M F S(R) INVESTMENT MANAGEMENT [graphic omitted] ANNUAL REPORT MFS(R) CASH RESERVE FUND LETTER FROM THE CEO 1 - ------------------------------------------------------------------ PORTFOLIO COMPOSITION 2 - ------------------------------------------------------------------ PERFORMANCE SUMMARY 3 - ------------------------------------------------------------------ EXPENSE TABLE 5 - ------------------------------------------------------------------ PORTFOLIO OF INVESTMENTS 7 - ------------------------------------------------------------------ STATEMENT OF ASSETS AND LIABILITIES 10 - ------------------------------------------------------------------ STATEMENT OF OPERATIONS 13 - ------------------------------------------------------------------ STATEMENTS OF CHANGES IN NET ASSETS 14 - ------------------------------------------------------------------ FINANCIAL HIGHLIGHTS 15 - ------------------------------------------------------------------ NOTES TO FINANCIAL STATEMENTS 22 - ------------------------------------------------------------------ REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM 31 - ------------------------------------------------------------------ TRUSTEES AND OFFICERS 32 - ------------------------------------------------------------------ BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT 38 - ------------------------------------------------------------------ PROXY VOTING POLICIES AND INFORMATION 42 - ------------------------------------------------------------------ QUARTERLY PORTFOLIO DISCLOSURE 42 - ------------------------------------------------------------------ FEDERAL TAX INFORMATION 42 - ------------------------------------------------------------------ MFS(R) PRIVACY NOTICE 43 - ------------------------------------------------------------------ CONTACT INFORMATION BACK COVER - ------------------------------------------------------------------ THE 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. - ------------------------------------------------------------------------------ NOT FDIC INSURED o MAY LOSE VALUE o NO BANK OR CREDIT UNION GUARANTEE o NOT A DEPOSIT o NOT INSURED BY ANY FEDERAL GOVERNMENT AGENCY OR NCUA/NCUSIF - ------------------------------------------------------------------------------ 8/31/07 LMM-ANN LETTER FROM THE CEO [Photo of Robert J. Manning] Dear Shareholders: The past year has been a great example of why investors should keep their eyes on the long term. In 2006 the Dow Jones Industrial Average returned 19%. But the Dow's upward rise has not been without hiccups. After hitting new records in July 2007, the Dow lost 8% in the following weeks as a crisis swept global credit markets. As we have said before, markets can be volatile, and investors should make sure they have an investment plan that can carry them through the peaks and troughs. If you are focused on a long-term investment strategy, the short-term ups and downs of the markets should not necessarily dictate portfolio action on your part. Both the bond and stock markets are cyclical. In our view, investors who remain committed to a long-term plan are more likely to achieve their financial goals. We believe you should not let the headlines guide you in your investment decisions and should be cautious about overreacting to short- term volatility. In any market environment, we believe individual investors are best served by following a three-pronged investment strategy of allocating their holdings across the major asset classes, diversifying within each class, and regularly rebalancing their portfolios to maintain their desired allocations. Of course, these strategies cannot guarantee a profit or protect against a loss. Investing and planning for the long term require diligence and patience, two traits that in our experience are essential to capitalizing on the many opportunities the financial markets can offer -- through both up and down economic cycles. Respectfully, /s/ Robert J. Manning Robert J. Manning Chief Executive Officer and Chief Investment Officer MFS Investment Management(R) October 15, 2007 The opinions expressed in this letter are subject to change, may not be relied upon for investment advice, and no forecasts can be guaranteed. PORTFOLIO COMPOSITION PORTFOLIO STRUCTURE (u) Commercial Paper 84.4% Repurchase Agreements 9.9% Certificates of Deposit 4.3% U.S. Government Agency Obligations 1.0% Other Assets Less Liabilities 0.4% SHORT TERM CREDIT QUALITY (q) Average Credit Quality Short-Term Bonds (a) A-1 ------------------------------------------------ All holdings are rated "A-1" ------------------------------------------------ MATURITY BREAKDOWN (u) 0-29 days 47.4% ------------------------------------------------ 30-59 days 23.2% ------------------------------------------------ 60-89 days 15.0% ------------------------------------------------ 90-366 days 14.0% ------------------------------------------------ Other Assets Less Liabilities 0.4% ------------------------------------------------ (a) The average credit quality is based upon a market weighted average of portfolio holdings that are rated by public rating agencies. (q) 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. If not rated by any of the three agencies, the security is considered Not Rated. U.S. Treasuries and U.S. Agency securities are included in the "A-1"-rating category. Percentages are based on the total market value of investments as of 08/31/07. (u) For purposes of this presentation, accrued interest, where applicable, is included. Percentages are based on net assets as of 08/31/07, unless otherwise noted. The portfolio is actively managed and current holdings may be different. PERFORMANCE SUMMARY THROUGH 8/31/07 Total returns as well as the current 7-day yield have been provided for the applicable time periods. Performance results reflect the percentage change in net asset value, including the reinvestment of any dividends and capital gains distributions. (See Notes to Performance Summary.) An investment in the portfolio is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the portfolio seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the portfolio. PERFORMANCE DATA SHOWN REPRESENTS PAST PERFORMANCE AND IS NO GUARANTEE OF FUTURE RESULTS. INVESTMENT RETURN AND PRINCIPAL VALUE FLUCTUATE SO YOUR SHARES, WHEN SOLD, MAY BE WORTH MORE OR LESS THAN THE ORIGINAL COST; CURRENT PERFORMANCE MAY BE LOWER OR HIGHER THAN QUOTED. 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 Current Return (without Current 7-day yield Class Inception sales charge) 7-day yield without waiver - -------------------------------------------------------------------------------- A 9/07/93 5.06% 5.02% 4.62% - ---------------------------------------------------------------------------- B 12/29/86 4.02% 4.02% 3.62% - ---------------------------------------------------------------------------- C 4/01/96 4.02% 4.02% 3.62% - ---------------------------------------------------------------------------- R1 4/01/05 3.91% 3.92% 3.44% - ---------------------------------------------------------------------------- R2 4/01/05 4.28% 4.27% 3.74% - ---------------------------------------------------------------------------- R3 4/01/05 4.38% 4.37% 3.89% - ---------------------------------------------------------------------------- R4 4/01/05 4.63% 4.62% 4.22% - ---------------------------------------------------------------------------- R5 4/01/05 4.96% 4.92% 4.52% - ---------------------------------------------------------------------------- 529A 7/31/02 4.80% 4.77% 4.02% - ---------------------------------------------------------------------------- 529B 7/31/02 3.77% 3.77% 3.37% - ---------------------------------------------------------------------------- 529C 7/31/02 3.76% 3.77% 3.37% - -------------------------------------------------------------------------------- Yields quoted are based on the latest seven days ended as of August 31, 2007, with dividends annualized. The yield quotation more closely reflects the current earnings of the fund than the total return quotation. 1 Year Class Total Return - -------------------------------------------------------------------------------- B with CDSC (Declining over six years from 4% to 0%) (x) 0.02% ------------------------------------------------------------------------ C with CDSC (1% for 12 months) (x) 3.02% ------------------------------------------------------------------------ 529B with CDSC (Declining over six years from 4% to 0%) (x) -0.23% ------------------------------------------------------------------------ 529C with CDSC (1% for 12 months) (x) 2.76% - -------------------------------------------------------------------------------- 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. (x) Assuming redemption at the end of the applicable period. NOTES TO PERFORMANCE SUMMARY Performance for Class R4, R5, and 529A shares includes the performance of the fund's Class A shares for periods prior to their offering. Performance for Class R1, R2, R3, and 529B shares includes the performance of the fund's Class B shares for periods prior to their offering. Performance for Class 529C shares includes the performance of the fund's Class C shares for periods prior to their offering. For reporting periods ending prior to March 31, 2004, when quoting performance for the fund's Class 529A shares, the performance of these share classes included the performance of the fund's Class B shares, rather than Class A shares. The blending methodology changed for reporting periods ending on or after March 31, 2004, because Class A shares now has a 10 year performance history, and share class performance is being blended to Class A shares based upon the similarity of share class operating expenses. This change in blending methodology results in better performance for Class 529A shares than it had under the prior blending methodology. For a transitional period lasting until December 31, 2007, performance for Class 529A shares under the prior methodology is available at mfs.com. 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. EXPENSE TABLE Fund Expenses Borne by the Shareholders During the Period, March 1, 2007 through August 31, 2007 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 (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, 2007 through August 31, 2007. ACTUAL EXPENSES The first line for each share class in the following table 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 following table 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). 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 Beginning Ending Paid During Annualized Account Account Period (p) Share Expense Value Value 3/01/07- Class Ratio 3/01/07 8/31/07 8/31/07 - ---------------------------------------------------------------------------- Actual 0.41% $1,000.00 $1,025.20 $2.09 A ------------------------------------------------------------------- Hypothetical (h) 0.41% $1,000.00 $1,023.14 $2.09 - ---------------------------------------------------------------------------- Actual 1.41% $1,000.00 $1,020.10 $7.18 B ------------------------------------------------------------------- Hypothetical (h) 1.41% $1,000.00 $1,018.10 $7.17 - ---------------------------------------------------------------------------- Actual 1.41% $1,000.00 $1,020.10 $7.18 C ------------------------------------------------------------------- Hypothetical (h) 1.41% $1,000.00 $1,018.10 $7.17 - ---------------------------------------------------------------------------- Actual 1.51% $1,000.00 $1,019.50 $7.69 R1 ------------------------------------------------------------------- Hypothetical (h) 1.51% $1,000.00 $1,017.59 $7.68 - ---------------------------------------------------------------------------- Actual 1.16% $1,000.00 $1,021.30 $5.91 R2 ------------------------------------------------------------------- Hypothetical (h) 1.16% $1,000.00 $1,019.36 $5.90 - ---------------------------------------------------------------------------- Actual 1.06% $1,000.00 $1,021.90 $5.40 R3 ------------------------------------------------------------------- Hypothetical(h) 1.06% $1,000.00 $1,019.86 $5.40 - ---------------------------------------------------------------------------- Actual 0.81% $1,000.00 $1,023.10 $4.13 R4 ------------------------------------------------------------------- Hypothetical(h) 0.81% $1,000.00 $1,021.12 $4.13 - ---------------------------------------------------------------------------- Actual 0.49% $1,000.00 $1,024.70 $2.50 R5 ------------------------------------------------------------------- Hypothetical(h) 0.49% $1,000.00 $1,022.74 $2.50 - ---------------------------------------------------------------------------- Actual 0.66% $1,000.00 $1,023.90 $3.37 529A ------------------------------------------------------------------- Hypothetical(h) 0.66% $1,000.00 $1,021.88 $3.36 - ---------------------------------------------------------------------------- Actual 1.66% $1,000.00 $1,018.80 $8.45 529B ------------------------------------------------------------------- Hypothetical(h) 1.66% $1,000.00 $1,016.84 $8.44 - ---------------------------------------------------------------------------- Actual 1.66% $1,000.00 $1,018.80 $8.45 529C ------------------------------------------------------------------- Hypothetical(h) 1.66% $1,000.00 $1,016.84 $8.44 - ---------------------------------------------------------------------------- (h) 5% class return per year before expenses. (p) Expenses paid is equal to each class' annualized expense ratio, as shown above, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year. Expenses paid do not include any applicable sales charges (loads). If these transaction costs had been included, your costs would have been higher. PORTFOLIO OF INVESTMENTS 8/31/07 The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Certificates of Deposit - 4.3% - -------------------------------------------------------------------------------------------------------------------------------- ISSUER SHARES/PAR VALUE ($) - -------------------------------------------------------------------------------------------------------------------------------- Major Banks - 1.1% - -------------------------------------------------------------------------------------------------------------------------------- Wells Fargo Bank N.A., 5.28%, due 9/18/07 $ 5,000,000 $ 5,000,000 - -------------------------------------------------------------------------------------------------------------------------------- Other Banks & Diversified Financials - 3.2% - -------------------------------------------------------------------------------------------------------------------------------- Credit Suisse, NY, 5.31%, due 9/27/07 $14,218,000 $ 14,218,000 - -------------------------------------------------------------------------------------------------------------------------------- TOTAL CERTIFICATES OF DEPOSIT, AT AMORTIZED COST AND VALUE $ 19,218,000 - -------------------------------------------------------------------------------------------------------------------------------- Commercial Paper - 84.4% (y) - -------------------------------------------------------------------------------------------------------------------------------- Asset Backed & Securitized - 0.4% - -------------------------------------------------------------------------------------------------------------------------------- Yorktown Capital LLC, 5.28%, due 9/07/07 (t) $ 1,636,000 $ 1,634,560 - -------------------------------------------------------------------------------------------------------------------------------- Automotive - 4.0% - -------------------------------------------------------------------------------------------------------------------------------- Toyota Motor Credit Corp., 4.75%, due 9/04/07 $17,625,000 $ 17,618,023 - -------------------------------------------------------------------------------------------------------------------------------- Brokerage & Asset Managers - 8.0% - -------------------------------------------------------------------------------------------------------------------------------- Merrill Lynch & Co., Inc., 5.28%, due 9/04/07 $ 9,729,000 $ 9,724,719 Merrill Lynch & Co., Inc., 5.3%, due 9/18/07 7,991,000 7,971,000 Morgan Stanley, Inc., 5.45%, due 12/21/07 18,189,000 17,883,349 ------------ $ 35,579,068 - -------------------------------------------------------------------------------------------------------------------------------- Electrical Equipment - 1.1% - -------------------------------------------------------------------------------------------------------------------------------- General Electric Co., 5.3%, due 11/15/07 $ 4,923,000 $ 4,868,642 - -------------------------------------------------------------------------------------------------------------------------------- Financial Institutions - 20.9% - -------------------------------------------------------------------------------------------------------------------------------- American Express Credit Corp., 5.18%, due 9/04/07 $ 156,000 $ 155,933 American Express Credit Corp., 5.25%, due 9/25/07 15,110,000 15,057,115 American Express Credit Corp., 5.3%, due 10/26/07 2,425,000 2,405,364 American General Finance Corp., 5.28%, due 11/13/07 17,050,000 16,867,451 Cargill, Inc., 5.5%, due 10/15/07 (t) 1,020,000 1,013,143 Cargill, Inc., 5.4%, due 11/15/07 (t) 17,061,000 16,869,064 Edison Asset Securitization LLC, 5.25%, due 10/09/07 (t) 15,970,000 15,881,500 General Electric Capital Corp., 5.15%, due 9/04/07 714,000 713,694 General Electric Capital Corp., 5.17%, due 1/23/08 (t) 11,480,000 11,242,594 Govco LLC, 5.25%, due 10/09/07 (t) 600,000 596,675 Govco LLC, 5.31%, due 11/07/07 (t) 1,100,000 1,089,129 Kitty Hawk Funding Corp., 5.25%, due 9/20/07 (t) 5,777,000 5,760,993 Ranger Funding Co. LLC, 5.25%, due 9/18/07 (t) 5,425,000 5,411,551 ------------ $ 93,064,206 - -------------------------------------------------------------------------------------------------------------------------------- Food & Beverages - 4.7% - -------------------------------------------------------------------------------------------------------------------------------- Archer Daniels Midland Co., 5.3%, due 9/04/07 (t) $ 9,804,000 $ 9,799,670 Coca-Cola Co., 5.24%, due 11/30/07 (t) 11,155,000 11,008,870 ------------ $ 20,808,540 - -------------------------------------------------------------------------------------------------------------------------------- Insurance - 3.9% - -------------------------------------------------------------------------------------------------------------------------------- MetLife Funding, Inc., 5.24%, due 9/04/07 $ 7,140,000 $ 7,136,882 MetLife, Inc., 5.25%, due 9/25/07 (t) 10,380,000 10,343,670 ------------ $ 17,480,552 - -------------------------------------------------------------------------------------------------------------------------------- Major Banks - 19.9% - -------------------------------------------------------------------------------------------------------------------------------- Abbey National North America LLC, 5.313%, due 9/04/07 $ 1,985,000 $ 1,984,121 Abbey National North America LLC, 5.21%, due 12/06/07 15,855,000 15,634,721 Barclays U.S. Funding Corp., 5.255%, due 10/17/07 14,809,000 14,709,562 HBOS Treasury Services PLC, 5.245%, due 10/25/07 10,660,000 10,576,132 Natexis Banques Populaires, 5.5%, due 10/05/07 17,912,000 17,818,957 Societe Generale North America, 5.255%, due 9/27/07 15,316,000 15,257,872 Wells Fargo & Co., 5.33%, due 9/27/07 12,644,000 12,595,328 ------------ $ 88,576,693 - -------------------------------------------------------------------------------------------------------------------------------- Other Banks & Diversified Financials - 21.5% - -------------------------------------------------------------------------------------------------------------------------------- Citigroup Funding, Inc., 5.25%, due 9/04/07 $ 713,000 $ 712,688 Citigroup Funding, Inc., 5.265%, due 9/20/07 15,251,000 15,208,621 Citigroup Funding, Inc., 5.3%, due 11/16/07 1,716,000 1,696,800 DEPFA Bank PLC, 5.425%, due 10/19/07 (t) 11,004,000 10,924,404 DEPFA Bank PLC, 4.98%, due 12/21/07 (t) 7,000,000 6,892,515 Dexia Delaware LLC, 5.46%, due 10/10/07 17,813,000 17,707,636 ING America Insurance Holdings, Inc., 5.35%, due 11/13/07 17,053,000 16,867,999 Svenska Handelsbanken, Inc., 5.24%, due 10/22/07 10,300,000 10,223,540 UBS Finance Delaware LLC, 5.2%, due 9/04/07 5,985,000 5,982,407 UBS Finance Delaware LLC, 5.43%, due 10/22/07 1,300,000 1,290,000 UBS Finance Delaware LLC, 5.225%, due 11/09/07 8,380,000 8,296,076 ------------ $ 95,802,686 - -------------------------------------------------------------------------------------------------------------------------------- TOTAL COMMERCIAL PAPER, AT AMORTIZED COST AND VALUE $375,432,970 - -------------------------------------------------------------------------------------------------------------------------------- U.S. Government Agency Obligations - 1.0% (y) - -------------------------------------------------------------------------------------------------------------------------------- Farmer Mac, 4.2%, due 9/04/07, at Amortized Cost and Value $ 4,400,000 $ 4,398,460 - -------------------------------------------------------------------------------------------------------------------------------- Repurchase Agreements - 9.9% - -------------------------------------------------------------------------------------------------------------------------------- Merrill Lynch, 5.3%, dated 8/31/07, due 9/04/07, total to be received $44,066,935 (secured by various U.S. Treasury and Federal Agency obligations and Mortgage Backed securities in a jointly traded account), at Cost $44,041,000 $ 44,041,000 - -------------------------------------------------------------------------------------------------------------------------------- TOTAL INVESTMENTS, AT AMORTIZED COST AND VALUE $443,090,430 - -------------------------------------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - 0.4% 1,792,920 - -------------------------------------------------------------------------------------------------------------------------------- NET ASSETS - 100.0% $444,883,350 - -------------------------------------------------------------------------------------------------------------------------------- (t) Security exempt from registration with the U.S. Securities and Exchange Commission under Section 4(2) of the Securities Act of 1933. (y) The rate shown represents an annualized yield at time of purchase. SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENT OF ASSETS AND LIABILITIES At 8/31/07 This statement represents your fund's balance sheet, which details the assets and liabilities comprising the total value of the fund. ASSETS - ------------------------------------------------------------------------------------------------------ Investments, at amortized cost and value $443,090,430 Cash 14 Receivable for fund shares sold 4,526,840 Interest receivable 227,083 Other assets 1,751 - ------------------------------------------------------------------------------------------------------ Total assets $447,846,118 - ------------------------------------------------------------------------------------------------------ LIABILITIES - ------------------------------------------------------------------------------------------------------ Distributions payable $46,218 Payable for fund shares reacquired 2,524,653 Payable to affiliates Management fee 3,622 Shareholder servicing costs 261,611 Distribution and service fees 13,793 Administrative services fee 428 Program manager fees 50 Retirement plan administration and services fees 840 Payable for independent trustees' compensation 27,740 Accrued expenses and other liabilities 83,813 - ------------------------------------------------------------------------------------------------------ Total liabilities $2,962,768 - ------------------------------------------------------------------------------------------------------ Net assets $444,883,350 - ------------------------------------------------------------------------------------------------------ NET ASSETS CONSIST OF - ------------------------------------------------------------------------------------------------------ Paid-in capital $444,907,595 Accumulated net realized gain (loss) on investments (24,245) - ------------------------------------------------------------------------------------------------------ Net assets $444,883,350 - ------------------------------------------------------------------------------------------------------ Shares of beneficial interest outstanding 444,907,610 - ------------------------------------------------------------------------------------------------------ Statement of Assets and Liabilities - continued Class A shares - ------------------------------------------------------------------------------------------------------ Net assets $136,204,393 Shares outstanding 136,211,559 - ------------------------------------------------------------------------------------------------------ Net asset value, offering price and redemption price per share $1.00 - ------------------------------------------------------------------------------------------------------ Class B shares - ------------------------------------------------------------------------------------------------------ Net assets $154,175,511 Shares outstanding 154,179,867 - ------------------------------------------------------------------------------------------------------ Net asset value and offering price per share $1.00 - ------------------------------------------------------------------------------------------------------ Class C shares - ------------------------------------------------------------------------------------------------------ Net assets $60,390,451 Shares outstanding 60,393,503 - ------------------------------------------------------------------------------------------------------ Net asset value and offering price per share $1.00 - ------------------------------------------------------------------------------------------------------ Class R1 shares - ------------------------------------------------------------------------------------------------------ Net assets $8,538,161 Shares outstanding 8,539,157 - ------------------------------------------------------------------------------------------------------ Net asset value, offering price, and redemption price per share $1.00 - ------------------------------------------------------------------------------------------------------ Class R2 shares - ------------------------------------------------------------------------------------------------------ Net assets $9,596,070 Shares outstanding 9,596,729 - ------------------------------------------------------------------------------------------------------ Net asset value, offering price, and redemption price per share $1.00 - ------------------------------------------------------------------------------------------------------ Class R3 shares - ------------------------------------------------------------------------------------------------------ Net assets $36,026,584 Shares outstanding 36,030,447 - ------------------------------------------------------------------------------------------------------ Net asset value, offering price, and redemption price per share $1.00 - ------------------------------------------------------------------------------------------------------ Class R4 shares - ------------------------------------------------------------------------------------------------------ Net assets $32,544,809 Shares outstanding 32,548,327 - ------------------------------------------------------------------------------------------------------ Net asset value, offering price, and redemption price per share $1.00 - ------------------------------------------------------------------------------------------------------ Class R5 shares - ------------------------------------------------------------------------------------------------------ Net assets $3,716,913 Shares outstanding 3,717,361 - ------------------------------------------------------------------------------------------------------ Net asset value, offering price, and redemption price per share $1.00 - ------------------------------------------------------------------------------------------------------ Statement of Assets and Liabilities - continued Class 529A shares - ------------------------------------------------------------------------------------------------------ Net assets $2,547,734 Shares outstanding 2,547,876 - ------------------------------------------------------------------------------------------------------ Net asset value, offering price, and redemption price per share $1.00 - ------------------------------------------------------------------------------------------------------ Class 529B shares - ------------------------------------------------------------------------------------------------------ Net assets $328,429 Shares outstanding 328,448 - ------------------------------------------------------------------------------------------------------ Net asset value and offering price price per share $1.00 - ------------------------------------------------------------------------------------------------------ Class 529C shares - ------------------------------------------------------------------------------------------------------ Net assets $814,295 Shares outstanding 814,336 - ------------------------------------------------------------------------------------------------------ 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 Year ended 8/31/07 This statement describes how much your fund earned in investment income and accrued in expenses. It also describes any gains and/or losses generated by fund operations. NET INVESTMENT INCOME - ------------------------------------------------------------------------------------------------------ Interest income $20,199,757 - ------------------------------------------------------------------------------------------------------ Expenses Management fee $2,069,426 Distribution and service fees 2,399,276 Program manager fees 8,281 Shareholder servicing costs 687,692 Administrative services fee 73,956 Retirement plan administration and services fees 78,950 Independent trustees' compensation 14,747 Custodian fee 92,709 Shareholder communications 27,813 Auditing fees 28,962 Legal fees 41,109 Miscellaneous 103,715 - ------------------------------------------------------------------------------------------------------ Total expenses $5,626,636 - ------------------------------------------------------------------------------------------------------ Fees paid indirectly (8,587) Reduction of expenses by investment adviser and distributor (1,524,542) - ------------------------------------------------------------------------------------------------------ Net expenses $4,093,507 - ------------------------------------------------------------------------------------------------------ Net investment income $16,106,250 - ------------------------------------------------------------------------------------------------------ Net realized gain (loss) on investment transactions $(22,989) - ------------------------------------------------------------------------------------------------------ Change in net assets from operations $16,083,261 - ------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENTS OF CHANGES IN NET ASSETS These statements describe the increases and/or decreases in net assets resulting from operations, any distributions, and any shareholder transactions. YEARS ENDED 8/31 ------------------------------- 2007 2006 CHANGE IN NET ASSETS FROM OPERATIONS - --------------------------------------------------------------------------------------------- Net investment income $16,106,250 $13,405,250 Net realized gain (loss) on investments (22,989) (811) - --------------------------------------------------------------------------------------------- Change in net assets from operations $16,083,261 $13,404,439 - --------------------------------------------------------------------------------------------- DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------- From net investment income Class A $(5,611,214) $(4,153,465) Class B (7,009,719) (7,438,988) Class C (1,743,169) (1,500,901) Class R1 (175,656) (22,701) Class R2 (147,919) (30,414) Class R3 (711,011) (102,446) Class R4 (575,671) (9,619) Class R5 (33,784) (2,066) Class 529A (109,027) (70,775) Class 529B (11,220) (9,881) Class 529C (25,406) (16,893) - --------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(16,153,796) $(13,358,149) - --------------------------------------------------------------------------------------------- Change in net assets from fund share transactions $40,254,200 $(18,098,331) - --------------------------------------------------------------------------------------------- Total change in net assets $40,183,665 $(18,052,041) - --------------------------------------------------------------------------------------------- NET ASSETS - --------------------------------------------------------------------------------------------- At beginning of period 404,699,685 422,751,726 At end of period (including undistributed net investment income of $0 and $47,546, respectively) $444,883,350 $404,699,685 - --------------------------------------------------------------------------------------------- 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 life of a particular share class, if shorter). 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 share class (assuming reinvestment of all distributions) held for the entire period. CLASS A YEARS ENDED 8/31 ----------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $1.00 $1.00 $1.00 $1.00 $1.00 - ------------------------------------------------------------------------------------------------------------------ INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------ Net investment income (d) $0.05 $0.04 $0.02 $0.01 $0.01 Net realized and unrealized gain (loss) on investments (0.00)(w) (0.00)(w) -- -- -- - ------------------------------------------------------------------------------------------------------------------ Total from investment operations $0.05 $0.04 $0.02 $0.01 $0.01 - ------------------------------------------------------------------------------------------------------------------ LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------ From net investment income $(0.05) $(0.04) $(0.02) $(0.01) $(0.01) - ------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $1.00 $1.00 $1.00 $1.00 $1.00 - ------------------------------------------------------------------------------------------------------------------ Total return (%) (r) 5.06 4.19 2.11 0.58 0.69 - ------------------------------------------------------------------------------------------------------------------ RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------ Expenses before expense reductions (f) 0.83 0.89 0.90 0.79 0.81 Expenses after expense reductions (f) 0.43 0.49 0.50 0.55 0.71 Net investment income 4.94 4.14 2.10 0.58 0.70 Net assets at end of period (000 Omitted) $136,204 $114,481 $91,165 $101,287 $214,275 - ------------------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS B YEARS ENDED 8/31 -------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $1.00 $1.00 $1.00 $1.00 $1.00 - --------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.04 $0.03 $0.01 $0.00(w) $0.00(w) Net realized and unrealized gain (loss) on investments (0.00)(w) (0.00)(w) -- -- -- - --------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.04 $0.03 $0.01 $0.00(w) $0.00(w) - --------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------- From net investment income $(0.04) $(0.03) $(0.01) $(0.00)(w) $(0.00)(w) - --------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $1.00 $1.00 $1.00 $1.00 $1.00 - --------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(t) 4.02 3.16 1.10 0.06 0.06 - --------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.83 1.89 1.89 1.80 1.81 Expenses after expense reductions (f) 1.43 1.49 1.49 1.07 1.35 Net investment income 3.94 3.09 1.03 0.06 0.06 Net assets at end of period (000 Omitted) $154,176 $222,661 $280,361 $429,844 $647,269 - --------------------------------------------------------------------------------------------------------------------- CLASS C YEARS ENDED 8/31 ------------------------------------------------------------------- 2007 2006 2005 2004 2003 Net asset value, beginning of period $1.00 $1.00 $1.00 $1.00 $1.00 - --------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.04 $0.03 $0.01 $0.00(w) $0.00(w) Net realized and unrealized gain (loss) on investments (0.00)(w) (0.00)(w) -- -- -- - --------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.04 $0.03 $0.01 $0.00(w) $0.00(w) - --------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------- From net investment income $(0.04) $(0.03) $(0.01) $(0.00)(w) $(0.00)(w) - --------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $1.00 $1.00 $1.00 $1.00 $1.00 - --------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(t) 4.02 3.15 1.10 0.06 0.06 - --------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.83 1.89 1.89 1.79 1.81 Expenses after expense reductions (f) 1.43 1.49 1.49 1.07 1.36 Net investment income 3.94 3.14 1.03 0.06 0.06 Net assets at end of period (000 Omitted) $60,390 $56,456 $46,483 $80,482 $159,715 - --------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R1 YEARS ENDED 8/31 -------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $1.00 $1.00 $1.00 - ---------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ---------------------------------------------------------------------------------------- Net investment income (d) $0.04 $0.03 $0.01 Net realized and unrealized gain (loss) on investments (0.00)(w) (0.00)(w) -- - ---------------------------------------------------------------------------------------- Total from investment operations $0.04 $0.03 $0.01 - ---------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------- From net investment income $(0.04) $(0.03) $(0.01) - ---------------------------------------------------------------------------------------- Net asset value, end of period $1.00 $1.00 $1.00 - ---------------------------------------------------------------------------------------- Total return (%) (r) 3.91 3.04 0.59(n) - ---------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.97 2.09 2.24(a) Expenses after expense reductions (f) 1.53 1.59 1.84(a) Net investment income 3.82 3.15 1.52(a) Net assets at end of period (000 Omitted) $8,538 $898 $258 - ---------------------------------------------------------------------------------------- CLASS R2 YEARS ENDED 8/31 ------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $1.00 $1.00 $1.00 - ---------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ---------------------------------------------------------------------------------------- Net investment income (d) $0.04 $0.03 $0.01 Net realized and unrealized gain (loss) on investments (0.00)(w) (0.00)(w) -- - ---------------------------------------------------------------------------------------- Total from investment operations $0.04 $0.03 $0.01 - ---------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------- From net investment income $(0.04) $(0.03) $(0.01) - ---------------------------------------------------------------------------------------- Net asset value, end of period $1.00 $1.00 $1.00 - ---------------------------------------------------------------------------------------- Total return (%) (r) 4.28 3.40 0.72(n) - ---------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.64 1.79 1.93(a) Expenses after expense reductions (f) 1.18 1.25 1.53(a) Net investment income 4.17 3.40 1.97(a) Net assets at end of period (000 Omitted) $9,596 $1,101 $604 - ---------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R3 YEARS ENDED 8/31 -------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $1.00 $1.00 $1.00 - ---------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ---------------------------------------------------------------------------------------- Net investment income (d) $0.04 $0.04 $0.01 Net realized and unrealized gain (loss) on investments (0.00)(w) (0.01) -- - ---------------------------------------------------------------------------------------- Total from investment operations $0.04 $0.03 $0.01 - ---------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------- From net investment income $(0.04) $(0.03) $(0.01) - ---------------------------------------------------------------------------------------- Net asset value, end of period $1.00 $1.00 $1.00 - ---------------------------------------------------------------------------------------- Total return (%) (r) 4.38 3.51 0.78(n) - ---------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.52 1.63 1.83(a) Expenses after expense reductions (f) 1.09 1.13 1.43(a) Net investment income 4.28 3.73 2.10(a) Net assets at end of period (000 Omitted) $36,027 $4,909 $1,179 - ---------------------------------------------------------------------------------------- CLASS R4 YEARS ENDED 8/31 -------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $1.00 $1.00 $1.00 - ---------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ---------------------------------------------------------------------------------------- Net investment income (d) $0.05 $0.04 $0.01 Net realized and unrealized gain (loss) on investments (0.00)(w) (0.00)(w) -- - ---------------------------------------------------------------------------------------- Total from investment operations $0.05 $0.04 $0.01 - ---------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------- From net investment income $(0.05) $(0.04) $(0.01) - ---------------------------------------------------------------------------------------- Net asset value, end of period $1.00 $1.00 $1.00 - ---------------------------------------------------------------------------------------- Total return (%) (r) 4.63 3.77 0.93(n) - ---------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.23 1.28 1.38(a) Expenses after expense reductions (f) 0.83 0.88 0.98(a) Net investment income 4.53 4.06 2.21(a) Net assets at end of period (000 Omitted) $32,545 $1,019 $51 - ---------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS R5 YEARS ENDED 8/31 ------------------------------------- 2007 2006 2005(i) Net asset value, beginning of period $1.00 $1.00 $1.00 - ---------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ---------------------------------------------------------------------------------------- Net investment income (d) $0.05 $0.04 $0.01 Net realized and unrealized gain (loss) on investments (0.00)(w) (0.00)(w) -- - ---------------------------------------------------------------------------------------- Total from investment operations $0.05 $0.04 $0.01 - ---------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------- From net investment income $(0.05) $(0.04) $(0.01) - ---------------------------------------------------------------------------------------- Net asset value, end of period $1.00 $1.00 $1.00 - ---------------------------------------------------------------------------------------- Total return (%) (r) 4.96 4.09 1.06(n) - ---------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------- Expenses before expense reductions (f) 0.93 0.99 1.08(a) Expenses after expense reductions (f) 0.53 0.59 0.68(a) Net investment income 4.80 4.03 2.51(a) Net assets at end of period (000 Omitted) $3,717 $53 $51 - ---------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529A YEARS ENDED 8/31 ------------------------------------------------------------------ 2007 2006 2005 2004 2003 Net asset value, beginning of period $1.00 $1.00 $1.00 $1.00 $1.00 - --------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.05 $0.04 $0.02 $0.00(w) $0.00(w) Net realized and unrealized gain (loss) on investments (0.00)(w) (0.00)(w) -- -- -- - --------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.05 $0.04 $0.02 $0.00(w) $0.00(w) - --------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------- From net investment income $(0.05) $(0.04) $(0.02) $(0.00)(w) $(0.00)(w) - --------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $1.00 $1.00 $1.00 $1.00 $1.00 - --------------------------------------------------------------------------------------------------------------------- Total return (%) (r) 4.80 3.93 1.86 0.33 0.45 - --------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.44 1.49 1.50 1.39 1.41 Expenses after expense reductions (f) 0.68 0.74 0.75 0.80 0.96 Net investment income 4.69 3.92 1.93 0.34 0.33 Net assets at end of period (000 Omitted) $2,548 $2,135 $1,650 $1,140 $1,164 - --------------------------------------------------------------------------------------------------------------------- CLASS 529B YEARS ENDED 8/31 ------------------------------------------------------------------ 2007 2006 2005 2004 2003 Net asset value, beginning of period $1.00 $1.00 $1.00 $1.00 $1.00 - --------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.04 $0.03 $0.01 $0.00(w) $0.00(w) Net realized and unrealized gain (loss) on investments (0.00)(w) (0.00)(w) -- -- -- - --------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.04 $0.03 $0.01 $0.00(w) $0.00(w) - --------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------- From net investment income $(0.04) $(0.03) $(0.01) $(0.00)(w) $(0.00)(w) - --------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $1.00 $1.00 $1.00 $1.00 $1.00 - --------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(t) 3.77 2.90 0.87 0.06 0.07 - --------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 2.09 2.14 2.13 2.03 2.06 Expenses after expense reductions (f) 1.69 1.74 1.73 1.08 1.25 Net investment income 3.69 2.88 0.87 0.07 0.06 Net assets at end of period (000 Omitted) $328 $297 $340 $339 $253 - --------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued CLASS 529C YEARS ENDED 8/31 ------------------------------------------------------------------ 2007 2006 2005 2004 2003 Net asset value, beginning of period $1.00 $1.00 $1.00 $1.00 $1.00 - --------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.04 $0.03 $0.01 $0.00(w) $0.00(w) Net realized and unrealized gain (loss) on investments (0.00)(w) (0.00)(w) -- -- -- - --------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.04 $0.03 $0.01 $0.00(w) $0.00(w) - --------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------- From net investment income $(0.04) $(0.03) $(0.01) $(0.00)(w) $(0.00)(w) - --------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $1.00 $1.00 $1.00 $1.00 $1.00 - --------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(t) 3.76 2.90 0.87 0.06 0.07 - --------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 2.09 2.14 2.13 2.03 2.06 Expenses after expense reductions (f) 1.68 1.74 1.73 1.08 1.22 Net investment income 3.69 2.89 0.85 0.06 0.05 Net assets at end of period (000 Omitted) $814 $688 $611 $640 $512 - --------------------------------------------------------------------------------------------------------------------- (a) Annualized. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (i) For the period from the class' inception, April 1, 2005 (Classes R1, R2, R3, R4, and R5) through the stated period end. (n) Not annualized. (r) Certain expenses have been reduced without which performance would have been lower. (t) Total returns do not include any applicable sales charges. (w) Per share amount was less than $0.01. SEE NOTES TO FINANCIAL STATEMENTS NOTES TO FINANCIAL STATEMENTS (1) BUSINESS AND ORGANIZATION MFS Cash Reserve Fund (the fund) is a 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 approximates market value. Amortized cost involves valuing an instrument at its cost as adjusted for amortization of premium or accretion of discount rather than its current market value. Each money market fund's use of amortized cost is subject to the fund's compliance with Rule 2a-7 under the Investment Company Act of 1940. The amortized cost value of an instrument can be different from the market value of an instrument. In September 2006, FASB Statement No. 157, Fair Value Measurements (the "Statement") was issued, and is effective for fiscal years beginning after November 15, 2007 and for all interim periods within those fiscal years. This Statement provides a single definition of fair value, a hierarchy for measuring fair value and expanded disclosures about fair value measurements. Management is evaluating the application of the Statement to the fund, and believes the impact will be limited to expanded disclosures resulting from the adoption of this Statement in the fund's financial statements. 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 and other funds managed by Massachusetts Financial Services Company (MFS), may utilize a joint trading account for the purpose of entering into one or more repurchase agreements. INDEMNIFICATIONS - Under the fund's organizational documents, its officers and trustees may be indemnified against certain liabilities and expenses arising out of the performance of their duties to the fund. Additionally, in the normal course of business, the fund enters into agreements with service providers that may contain indemnification clauses. The fund's maximum exposure under these agreements is unknown as this would involve future claims that may be made against the fund that have not yet occurred. 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. This amount, for the year ended August 31, 2007, is shown as a reduction of total expenses on the Statement of Operations. TAX MATTERS AND DISTRIBUTIONS - The fund intends to qualify as a regulated investment company, as defined under Subchapter M of the Internal Revenue Code, and to distribute all of its taxable income, including realized capital gains. Accordingly, no provision for federal income tax is required in the financial statements. Foreign taxes, if any, have been accrued by the fund in the accompanying financial statements. Distributions to shareholders are recorded on the ex-dividend date. Income and capital gain distributions are determined in accordance with income tax regulations, which may differ from U.S. generally accepted accounting principles. Certain capital accounts in the financial statements are periodically adjusted for permanent differences in order to reflect their tax character. These adjustments have no impact on net assets or net asset value per share. Temporary differences which arise from recognizing certain items of income, expense, gain or loss in different periods for financial statement and tax purposes will reverse at some time in the future. Distributions in excess of net investment income or net realized gains are temporary overdistributions for financial statement purposes resulting from differences in the recognition or classification of income or distributions for financial statement and tax purposes. During the year ended August 31, 2007, there were no significant adjustments due to differences between book and tax accounting. The tax character of distributions declared to shareholders is as follows: 8/31/07 8/31/06 Ordinary income (including any short-term capital gains) $16,153,796 $13,358,149 The federal tax cost and the tax basis components of distributable earnings were as follows: AS OF 8/31/07 Cost of investments $443,090,430 ------------------------------------------------------------- Undistributed ordinary income $77,688 Capital loss carryforwards (1,256) Post-October capital loss deferral (22,989) Other temporary differences (77,688) As of August 31, 2007, the fund had capital loss carryforwards available to offset future realized gains. Such losses expire as follows: 8/31/12 $(441) 8/31/13 (4) 8/31/15 (811) ------------------------------------------------------------- $(1,256) In June 2006, FASB Interpretation No. 48, Accounting for Uncertainty in Income Taxes (the "Interpretation") was issued, and is effective for fiscal years beginning after December 15, 2006 and is to be applied to all open tax years as of the effective date. On December 22, 2006, the SEC delayed the implementation of the Interpretation for regulated investment companies for an additional six months. This Interpretation prescribes a minimum threshold for financial statement recognition of the benefit of a tax position taken or expected to be taken in a tax return, and requires certain expanded disclosures. Management has evaluated the application of the Interpretation to the fund, and has determined that there is no impact resulting from the adoption of this Interpretation on the fund's financial statements. 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 the value of settled shares outstanding 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 management and related administrative services and facilities to the fund. 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, 2007, this waiver amounted to $1,505,037 and is reflected as a reduction of total expenses in the Statement of Operations. The management fee incurred for the year ended August 31, 2007 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 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 MFD and another component of the plan is a service fee paid to MFD. MFD may subsequently pay all, or a portion, of the distribution and/or service fees to financial intermediaries. Distribution Fee Plan Table: TOTAL ANNUAL DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE AND SERVICE FEE RATE FEE RATE PLAN(d) RATE (e) FEE Class A 0.10% 0.25% 0.35% 0.00% $-- Class B 0.75% 0.25% 1.00% 1.00% 1,773,564 Class C 0.75% 0.25% 1.00% 1.00% 441,253 Class R1 0.50% 0.25% 0.75% 0.75% 34,362 Class R2 0.25% 0.25% 0.50% 0.50% 17,632 Class R3 0.25% 0.25% 0.50% 0.50% 82,750 Class R4 -- 0.25% 0.25% 0.25% 31,685 Class 529A 0.25% 0.25% 0.50% 0.00% 8,127 Class 529B 0.75% 0.25% 1.00% 1.00% 3,031 Class 529C 0.75% 0.25% 1.00% 1.00% 6,872 - -------------------------------------------------------------------------------------------------------- Total Distribution and Service Fees $2,399,276 (d) 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. (e) The annual effective rates represent actual fees incurred under the distribution plan for the year ended August 31, 2007 based on each class' average daily net assets. Payment of the 0.25% annual Class A service fee is not yet in effect and will be implemented 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 in effect and will be implemented 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 written waiver arrangement through December 31, 2007. Payment of 0.15% of the Class 529A distribution fee is not yet in effect and will be implemented on such date as the fund's Board of Trustees may determine. For the year ended August 31, 2007, this waiver amounted to $2,322 and is reflected as a reduction of total expenses in the Statement of Operations. 0.25% of the Class 529A service fee is currently being waived under a written waiver arrangement through December 31, 2007. For the year ended August 31, 2007, this waiver amounted to $5,805 and is reflected as a reduction of total expenses in the Statement of Operations. 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. All contingent deferred sales charges are paid to MFD and during the year ended August 31, 2007, were as follows: AMOUNT Class A $356 Class B $427,210 Class C $15,000 Class 529B $1,099 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% of the average daily net assets attributable to each 529 share class. The fee is based on average daily net assets and is currently established at 0.25% annually of average daily 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, 2007, were as follows: AMOUNT Class 529A $5,805 Class 529B 758 Class 529C 1,718 ------------------------------------------- Total Program Manager Fees $8,281 SHAREHOLDER SERVICING AGENT - MFS Service Center, Inc. (MFSC), a wholly-owned subsidiary of MFS, receives a fee from the fund for its services as shareholder servicing agent calculated as a percentage of the average daily net assets of the fund as determined periodically under the supervision of the fund's Board of Trustees. For the year ended August 31, 2007, the fee was $233,565, which equated to 0.0621% annually of the fund's average daily net assets. MFSC also receives payment from the fund for out-of-pocket expenses, sub-accounting and other shareholder servicing costs which may be paid to affiliated and unaffiliated service providers. For the year ended August 31, 2007, these out-of-pocket expenses, sub-accounting and other shareholder servicing costs amounted to $390,447. The fund may also pay shareholder servicing related costs directly to non-related parties. ADMINISTRATOR - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to the fund. Under an administrative services agreement, the fund partially reimburses MFS the costs incurred to provide these services. The fund is charged a fixed amount plus a fee based on average daily net assets. The fund's annual fixed amount is $17,500. The administrative services fee incurred for the year ended August 31, 2007 was equivalent to an annual effective rate of 0.0197% 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 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. MFS may subsequently pay all, or a portion, of the retirement plan administration and services fee to affiliated or unaffiliated third parties. For the year ended August 31, 2007, the fund paid MFS an annual retirement plan administration and services fee up to the following annual percentage rates of each class' average daily net assets: BEGINNING OF PERIOD ANNUAL THROUGH EFFECTIVE EFFECTIVE TOTAL 3/31/07 4/1/07 RATE(g) AMOUNT Class R1 0.45% 0.35% 0.35% $17,596 Class R2 0.40% 0.25% 0.25% 10,983 Class R3 0.25% 0.15% 0.15% 30,661 Class R4 0.15% 0.15% 0.15% 19,012 Class R5 0.10% 0.10% 0.10% 698 - ------------------------------------------------------------------------------- Total Retirement Plan Administration and Services Fees $78,950 (g) Prior to April 1, 2007, MFS had agreed in writing to waive a portion of the retirement plan administration and services fee equal to 0.10% for Class R1, 0.15% for Class R2, and 0.10% for Class R3 shares. This agreement was discontinued on March 31, 2007. On April 1, 2007, the annual retirement plan administration and services fee for Class R1, Class R2, and Class R3 shares was lowered to 0.35%, 0.25%, and 0.15%, respectively. For the year ended August 31, 2007, the waiver amounted to $9,538 and is reflected as a reduction of total expenses in the Statement of Operations. TRUSTEES' AND OFFICERS' 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 or officers of the fund who are also officers of the investment adviser, 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 certain retired independent trustees which resulted in a pension expense of $2,980. This amount is included in independent trustees' compensation for the year ended August 31, 2007. The liability for deferred retirement benefits payable to certain retired independent trustees amounted to $27,560 at August 31, 2007, and is included in payable for independent 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. The funds can terminate the Agreement with Tarantino LLC at any time under the terms of the Agreement. For the year ended August 31, 2007, the fee paid to Tarantino LLC was $2,345. MFS has agreed to reimburse the fund for a portion of the payments made by the funds to Tarantino LLC in the amount of $1,840, 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. (4) PORTFOLIO SECURITIES Purchases and sales of money market securities, exclusive of securities subject to repurchase agreements, aggregated $6,014,373,244 and $6,017,627,620, respectively. (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 YEAR ENDED 8/31/07 8/31/06 SHARES AMOUNT SHARES AMOUNT Shares sold Class A 109,927,782 $109,927,782 117,033,867 $117,033,876 Class B 112,273,280 112,273,280 172,309,994 172,309,994 Class C 60,361,403 60,361,403 66,947,131 66,947,131 Class R1 61,618,688 61,618,688 1,313,341 1,313,341 Class R2 54,718,434 54,718,434 861,517 861,516 Class R3 151,186,527 151,186,527 6,796,745 6,796,746 Class R4 104,892,406 104,892,406 1,072,464 1,072,464 Class R5 17,149,069 17,149,069 -- -- Class 529A 1,188,482 1,188,482 886,031 886,031 Class 529B 101,520 101,520 243,462 243,463 Class 529C 497,316 497,316 366,108 366,108 - ------------------------------------------------------------------------------------------------------- 673,914,907 $673,914,907 367,830,660 $367,830,670 Shares issued to shareholders in reinvestment of distributions Class A 5,246,094 $5,246,094 3,783,600 $3,783,600 Class B 6,563,810 6,563,810 6,929,081 6,929,081 Class C 1,624,513 1,624,513 1,374,977 1,374,977 Class R1 149,283 149,283 22,173 22,174 Class R2 119,311 119,311 29,955 29,955 Class R3 643,871 643,871 99,631 99,631 Class R4 539,714 539,714 9,521 9,521 Class R5 28,877 28,877 2,066 2,066 Class 529A 108,508 108,508 70,755 70,755 Class 529B 11,154 11,154 9,850 9,850 Class 529C 25,156 25,156 16,827 16,827 - ------------------------------------------------------------------------------------------------------- 15,060,291 $15,060,291 12,348,436 $12,348,437 Shares reacquired Class A (93,431,093) $(93,431,093) (97,513,708) $(97,513,708) Class B (187,291,191) (187,291,191) (236,966,151) (236,966,174) Class C (58,042,860) (58,042,860) (58,354,458) (58,354,459) Class R1 (54,127,011) (54,127,011) (695,487) (695,487) Class R2 (46,341,559) (46,341,559) (394,730) (394,730) Class R3 (120,708,753) (120,708,753) (3,166,655) (3,166,655) Class R4 (73,903,225) (73,903,225) (113,123) (113,123) Class R5 (13,513,179) (13,513,179) -- -- Class 529A (884,377) (884,377) (471,603) (471,603) Class 529B (81,516) (81,516) (296,083) (296,084) Class 529C (396,234) (396,234) (305,414) (305,415) - ------------------------------------------------------------------------------------------------------- (648,720,998) $(648,720,998) (398,277,412) $(398,277,438) Net change Class A 21,742,783 $21,742,783 23,303,759 $23,303,768 Class B (68,454,101) (68,454,101) (57,727,076) (57,727,099) Class C 3,943,056 3,943,056 9,967,650 9,967,649 Class R1 7,640,960 7,640,960 640,027 640,028 Class R2 8,496,186 8,496,186 496,742 496,741 Class R3 31,121,645 31,121,645 3,729,721 3,729,722 Class R4 31,528,895 31,528,895 968,862 968,862 Class R5 3,664,767 3,664,767 2,066 2,066 Class 529A 412,613 412,613 485,183 485,183 Class 529B 31,158 31,158 (42,771) (42,771) Class 529C 126,238 126,238 77,521 77,520 - ------------------------------------------------------------------------------------------------------- 40,254,200 $40,254,200 (18,098,316) $(18,098,331) (6) LINE OF CREDIT The fund and other funds managed by MFS participate in a $1 billion unsecured committed line of credit provided by a syndication of banks under a credit agreement. In addition, the fund and other funds managed by MFS have established uncommitted borrowing arrangements with certain banks. Borrowings may be made for temporary financing needs. Interest is charged to each fund, based on its borrowings, generally at a rate equal to the Federal Reserve funds rate plus 0.30%. In addition, a commitment fee, based on the average daily, unused portion of the committed line of credit, is allocated among the participating funds at the end of each calendar quarter. For the year ended August 31, 2007, the fund's commitment fee and interest expense were $1,844 and $0, respectively, and are included in miscellaneous expense on the Statement of Operations. 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 MFS Cash Reserve Fund (one of the portfolios comprising MFS Series Trust I) (the "Trust") as of August 31, 2007, 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 Trust'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. The Trust is not required to have, nor were we engaged to perform, an audit of its 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 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, 2007, by correspondence with the custodian. We believe that our audits provide a reasonable basis for our opinion. In our opinion, such financial statements and financial highlights present fairly, in all material respects, the financial position of MFS Cash Reserve Fund as of August 31, 2007, 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 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 16, 2007 TRUSTEES AND OFFICERS -- IDENTIFICATION AND BACKGROUND The Trustees and officers of the Trust, as of October 1, 2007, 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(h) OTHER DIRECTORSHIPS(j) - ------------------- ------------------- --------------- ---------------------------------- INTERESTED TRUSTEES Robert J. Manning(k) Trustee February 2004 Massachusetts Financial Services (born 10/20/63) Company, Chief Executive Officer, President, Chief Investment Officer and Director Robert C. Pozen(k) Trustee February 2004 Massachusetts Financial Services (born 8/08/46) Company, Chairman (since February 2004); MIT Sloan School (education), Senior Lecturer (since 2006); 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 5/01/36) of Trustees Enterprises (diversified services company), Chairman, Trustee and Chief Executive Officer (until November 2000) Robert E. Butler(n) Trustee January 2006 Consultant - regulatory and (born 11/29/41) compliance matters (since July 2002); PricewaterhouseCoopers LLP (professional services firm), Partner (until 2002) Lawrence H. Cohn, M.D. Trustee August 1993 Brigham and Women's Hospital, (born 3/11/37) Chief of Cardiac Surgery (2005); Harvard Medical School, Professor of Cardiac Surgery; Physician Director of Medical Device Technology for Partners HealthCare David H. Gunning Trustee January 2004 Retired; Cleveland-Cliffs Inc. (born 5/30/42) (mining products and service provider), Vice Chairman/Director (until May 2007); Portman Limited (mining), Director (since 2005); 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 9/27/41) consultant; Capitol Entertainment Management Company (video franchise), Vice Chairman; Atlantic Coast Tan (tanning salons), Vice Chairman (since 2002) 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) Lawrence T. Perera Trustee July 1981 Hemenway & Barnes (attorneys), (born 6/23/35) Partner J. Dale Sherratt Trustee August 1993 Insight Resources, Inc. (born 9/23/38) (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 New Profit, Inc. (venture (born 8/05/57) philanthropy), Partner (since 2006); Private investor; Prism Venture Partners (venture capital), Co-founder and General Partner (until June 2004); The Travelers Companies (commercial property liability insurance), Director Robert W. Uek Trustee January 2006 Retired (since 1999); (born 5/18/41) PricewaterhouseCoopers LLP (professional services firm), Partner (until 1999); Consultant to investment company industry (since 2000); TT International Funds (mutual fund complex), Trustee (2000 until 2005); Hillview Investment Trust II Funds (mutual fund complex), Trustee (2000 until 2005) OFFICERS Maria F. Dwyer(k) President November 2005 Massachusetts Financial Services (born 12/01/58) Company, Executive Vice President and Chief Regulatory Officer (since March 2004) Chief Compliance Officer (since December 2006); Fidelity Management & Research Company, Vice President (prior to March 2004); Fidelity Group of Funds, President and Treasurer (prior to March 2004) Tracy Atkinson(k) 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(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 1/18/74) and Assistant Clerk Company, Vice President and Senior Counsel (since April 2003); Kirkpatrick & Lockhart LLP (law firm), Associate (prior to April 2003) Ethan D. Corey(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 11/21/63) and Assistant Clerk Company, Special Counsel (since December 2004); Dechert LLP (law firm), Counsel (prior to December 2004) David L. DiLorenzo(k) Assistant Treasurer July 2005 Massachusetts Financial Services (born 8/10/68) Company, Vice President (since June 2005); JP Morgan Investor Services, Vice President (prior to June 2005) Mark D. Fischer(k) Assistant Treasurer July 2005 Massachusetts Financial Services (born 10/27/70) Company, Vice President (since May 2005); JP Morgan Investment Management Company, Vice President (prior to May 2005) Brian E. Langenfeld(k) Assistant Secretary June 2006 Massachusetts Financial Services (born 3/07/73) and Assistant Clerk Company, Assistant Vice President and Counsel (since May 2006); John Hancock Advisers, LLC, Assistant Vice President and Counsel (May 2005 to April 2006); John Hancock Advisers, LLC, Attorney and Assistant Secretary (prior to May 2005) Ellen Moynihan(k) Assistant Treasurer April 1997 Massachusetts Financial Services (born 11/13/57) Company, Senior Vice President Susan S. Newton(k) Assistant Secretary May 2005 Massachusetts Financial Services (born 3/07/50) and Assistant Clerk Company, Senior Vice President and 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(k) Assistant Secretary July 2005 Massachusetts Financial Services (born 11/05/70) and Assistant Clerk Company, Vice President and Senior Counsel (since June 2004); Bingham McCutchen LLP (law firm), Associate (prior to June 2004) Mark N. Polebaum(k) Secretary and Clerk January 2006 Massachusetts Financial Services (born 5/01/52) Company, Executive Vice President, General Counsel and Secretary (since January 2006); Wilmer Cutler Pickering Hale and Dorr LLP (law firm), Partner (prior to January 2006) Frank L. Tarantino Independent Chief June 2004 Tarantino LLC (provider of (born 3/07/44) Compliance Officer compliance services), Principal (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 (prior to March 2003) James O. Yost(k) Assistant Treasurer September 1990 Massachusetts Financial Services (born 6/12/60) Company, Senior Vice President - ------------ (h) Date first appointed to serve as Trustee/officer of an MFS fund. Each Trustee has served continuously since appointment unless indicated otherwise. (j) Directorships or trusteeships of companies required to report to the Securities and Exchange Commission (i.e., "public companies"). (k) "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. (n) In 2004 and 2005, Mr. Butler provided consulting services to the independent compliance consultant retained by MFS pursuant to its settlement with the SEC concerning market timing and related matters. The terms of that settlement required that compensation and expenses related to the independent compliance consultant be borne exclusively by MFS and, therefore, MFS paid Mr. Butler for the services he rendered to the independent compliance consultant. In 2004 and 2005, MFS paid Mr. Butler a total of $351,119.29. The Trust held a shareholders' meeting in 2005 to elect Trustees, and will hold a shareholders' meeting at least once every five years thereafter, to elect Trustees. Each Trustee (except Mr. Butler and Mr. Uek) has been elected by share- holders 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. Butler, Gutow, Sherratt and Uek and Ms. 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 January 1, 2007, the Trustees served as board members of 97 funds within the MFS Family of Funds. 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. Deloitte & Touche 500 Boylston Street, Boston, MA 02116-3741 200 Berkeley Street, Boston, MA 02116 PORTFOLIO MANAGER Edward O'Dette Terri Vittozzi 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, 2007 ("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 that included, among other items: (i) information provided by Lipper Inc. on the investment performance of the Fund for various time periods ended December 31, 2006 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 ("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 MFS peer funds, (iii) information provided by MFS on the advisory fees of comparable portfolios of other clients of MFS, including institutional separate accounts 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 in 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, 2006, which the Trustees believed was a long enough period to reflect differing market conditions. The total return performance of the Fund's Class A shares was in the 1st quintile relative to the other funds in the universe for this three-year period (the 1st quintile being the best performers and the 5th quintile being the worst performers). The total return performance of the Fund's Class A shares was in the 1st quintile for the one-year period and the 2nd quintile for the five-year period ended December 31, 2006 relative to the Lipper performance universe. Because of the passage of time, these performance results may 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 daily 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 that MFS observes an advisory fee reduction that will remain in effect for the Fund through February 28, 2009 as part of MFS' settlement with the New York Attorney General concerning market timing and related matters. The Trustees also considered that, according to the Lipper data (which takes into account the advisory fee reduction), 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. Taking into account the advisory fee reduction noted above, 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 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 that 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, which may include 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, if applicable, to pay for investment research (excluding third-party research, for which MFS pays directly), 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, 2007. A discussion regarding the Board's most recent review and renewal of the Fund's investment advisory agreement will be available on or before November 1, 2007 by clicking on the fund's name under "Select a fund" on the MFS Web site (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 100 F Street, NE, Room 1580 Washington, D.C. 20549 Information on the operation of the Public Reference Room may be obtained by calling the Commission at 1-202-551-5850. The fund's Form N-Q is available on the EDGAR database on the Commission's Internet Web site 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) The fund will notify shareholders of amounts for use in preparing 2007 income tax forms in January 2008. MFS(R) PRIVACY NOTICE Privacy is a concern for every investor today. At MFS Investment Management(R) and the MFS funds, we take this concern very seriously. We want you to understand our policies about the investment products and services that we offer, and how we protect the nonpublic personal information of investors who have a direct relationship with us and our wholly owned subsidiaries. Throughout our business relationship, you provide us with personal information. We maintain information and records about you, your investments, and the services you use. Examples of the nonpublic personal information we maintain include o data from investment applications and other forms o share balances and transactional history with us, our affiliates, or others o facts from a consumer reporting agency We do not disclose any nonpublic personal information about our customers or former customers to anyone, except as permitted by law. We may share nonpublic personal information with third parties or certain of our affiliates in connection with servicing your account or processing your transactions. We may share information with companies or financial institutions that perform marketing services on our behalf or with other financial institutions with which we have joint marketing arrangements, subject to any legal requirements. Authorization to access your nonpublic personal information is limited to appropriate personnel who provide products, services, or information to you. We maintain physical, electronic, and procedural safeguards to help protect the personal information we collect about you. If you have any questions about the MFS privacy policy, please call 1-800-225-2606 any business day between 8 a.m. and 8 p.m. Eastern time. Note: If you own MFS products or receive MFS services in the name of a third party such as a bank or broker-dealer, their privacy policy may apply to you instead of ours. CONTACT US WEB SITE MAILING ADDRESS mfs.com MFS Service Center, Inc. P.O. Box 55824 MFS TALK Boston, MA 02205-5824 1-800-637-8255 24 hours a day OVERNIGHT MAIL MFS Service Center, Inc. ACCOUNT SERVICE AND 500 Boylston Street LITERATURE Boston, MA 02116-3741 SHAREHOLDERS 1-800-225-2606 8 a.m. to 8 p.m. ET INVESTMENT PROFESSIONALS 1-800-343-2829 8 a.m. to 8 p.m. ET RETIREMENT PLAN SERVICES 1-800-637-1255 8 a.m. to 8 p.m. ET - ------------------------------------------------------------------------------- Go paperless with eDELIVERY: Arrange to have MFS(R) send prospectuses, reports, and proxies directly to your e-mail inbox. You'll get timely information and less clutter in your mailbox (not to mention help your fund save printing and postage costs). SIGN UP: If your account is registered with us, simply go to MFS.COM, log in to your account via MFS(R) Access, and select the eDelivery sign up options. If you own your MFS fund shares through a financial institution or a retirement plan, MFS(R) TALK, MFS Access, and eDelivery may not be available to you. - ------------------------------------------------------------------------------- M F S(R) INVESTMENT MANAGEMENT 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 not amended any provision in its Code of Ethics (the "Code") that relates to an element of the Code's definitions enumerated in paragraph (b) of Item 2 of this Form N-CSR. A copy of the Code of Ethics is filed as an exhibit to this Form N-CSR. ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT. Messrs. Robert E. Butler and Robert W. Uek and Ms. 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, Messrs. Butler and Uek and Ms. Thomsen are "independent" members of the Audit Committee (as such term has been defined by the Securities and Exchange Commission in regulations implementing Section 407 of the Sarbanes-Oxley Act of 2002). The Securities and Exchange Commission has stated that the designation of a person as an audit committee financial expert pursuant to this Item 3 on the Form N-CSR does not impose on such a person any duties, obligations or liability that are greater than the duties, obligations or liability imposed on such person as a member of the Audit Committee and the Board of Trustees in the absence of such designation or identification. 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 series of the Registrant (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, 2007 and 2006, audit fees billed to the Funds by Deloitte and E&Y were as follows: Audit Fees FEES BILLED BY DELOITTE: 2007 2006 ---- ---- MFS Cash Reserve Fund 28,640 25,360 AUDIT FEES FEES BILLED BY E&Y: 2007 2006 ---- ---- MFS Core Equity Fund 38,645 35,580 MFS Core Growth Fund 39,185 35,580 MFS New Discovery Fund 38,645 35,580 MFS Research International Fund 41,550 37,780 MFS Strategic Growth Fund+ 0 35,580 MFS Technology Fund 38,645 35,580 MFS Value Fund 39,185 35,580 ------ ------ TOTAL BILLED BY E&Y 235,855 251,260 For the fiscal years ended August 31, 2007 and 2006, 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: 2007 2006 2007 2006 2007 2006 ---- ---- ---- ---- ---- ---- To MFS Cash Reserve 0 0 3,266 5,800 0 558 Fund To MFS and MFS Related 905,470 1,035,850 0 0 543,753 454,481 Entities of MFS Cash Reserve Fund* AGGREGATE FEES FOR NON-AUDIT SERVICES: 2007 2006 ---- ---- To MFS Cash Reserve Fund, 1,600,067 1,614,579 MFS and MFS Related Entities# Audit-Related Fees(2) Tax Fees(2) All Other Fees(4) FEES BILLED BY E&Y: 2007 2006 2007 2006 2007 2006 ---- ---- ---- ---- ---- ---- To MFS Core Equity Fund 0 0 7,940 10,192 0 144 To MFS Core Growth 0 0 7,940 10,192 0 144 Fund To MFS New Discovery 0 0 7,940 10,192 0 144 Fund To MFS Research 0 0 8,317 10,522 0 144 International Fund To MFS Strategic 0 0 0 10,192 0 144 Growth Fund+ To MFS Technology Fund 0 0 7,940 10,192 0 144 To MFS Value Fund 0 0 7,940 10,192 0 144 0 0 48,017 71,674 0 1,008 TOTAL FEES BILLED BY E&Y TO ABOVE FUNDS: To MFS and MFS Related 0 0 0 15,500 0 97,480 Entities of MFS Core Equity Fund* To MFS and MFS Related 0 0 0 15,500 0 97,480 Entities of MFS Core Growth Fund* To MFS and MFS Related 0 0 0 15,500 0 97,480 Entities of MFS New Discovery Fund* To MFS and MFS Related 0 0 0 15,500 0 97,480 Entities of MFS Research International Fund* To MFS and MFS Related 0 0 0 15,500 0 97,480 Entities of MFS Strategic Growth Fund+* To MFS and MFS Related 0 0 0 15,500 0 97,480 Entities of MFS Technology Fund* To MFS and MFS Related 0 0 0 15,500 0 97,480 Entities of MFS Value Fund* AGGREGATE FEES FOR NON-AUDIT SERVICES: 2007 2006 ---- ---- To MFS Core Equity Fund, 181,424 200,333 MFS and MFS Related Entities# To MFS Core Growth 181,424 200,333 Fund, MFS and MFS Related Entities# To MFS New Discovery 181,424 200,333 Fund, MFS and MFS Related Entities# To MFS Research 181,801 200,663 International Fund, MFS and MFS Related Entities# To MFS Strategic Growth 173,484 200,333 Fund, MFS and MFS Related Entities+# To MFS Technology Fund, MFS 181,424 200,333 and MFS Related Entities# To MFS Value Fund, MFS and 181,424 200,333 MFS Related Entities# + The MFS Strategic Growth Fund was reorganized into the MFS Core Growth Fund as of June 22, 2007. See note above. * 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 or E&Y, as the case may be, for non-audit services rendered to the Funds and for non-audit services rendered to MFS and the MFS Related Entities. (3) 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, analysis of certain portfolio holdings versus investment styles, review of internal controls and review of Rule 38a-1 compliance program. (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 the subscription to tax treatise and for services related to analysis of fund administrative expenses, compliance program and records management projects. 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 in each period between 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 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 407(c)(2)(iv) of Regulation S-K (as required by Item 22(b)(15) of Schedule 14A), or this Item. ITEM 11. CONTROLS AND PROCEDURES. (a) Based upon their evaluation of the effectiveness 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 report on 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 of the period covered by the report that have materially affected, or are 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. NOTICE A copy of the Amended and Restated Declaration of Trust, as amended, of the Registrant is on file with the Secretary of State of The Commonwealth of Massachusetts and notice is hereby given that this instrument is executed on behalf of the Registrant by an officer of the Registrant as an officer and not individually and the obligations of or arising out of this instrument are not binding upon any of the Trustees or shareholders individually, but are binding only upon the assets and property of the respective constituent series of the Registrant. 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)* MARIA F. DWYER ----------------------------------------------------- Maria F. Dwyer, President Date: October 16, 2007 ---------------- 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)* MARIA F. DWYER ----------------------------------------------------- Maria F. Dwyer, President (Principal Executive Officer) Date: October 16, 2007 ---------------- By (Signature and Title)* TRACY ATKINSON ----------------------------------------------------- Tracy Atkinson, Treasurer (Principal Financial Officer and Accounting Officer) Date: October 16, 2007 ---------------- * Print name and title of each signing officer under his or her signature.