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 811-4096 - ------------------------------------------------------------------------------- MFS MUNICIPAL SERIES TRUST - ------------------------------------------------------------------------------- (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: March 31 - ------------------------------------------------------------------------------- Date of reporting period: September 30, 2006 - ------------------------------------------------------------------------------- ITEM 1. REPORTS TO STOCKHOLDERS. M F S(R) INVESTMENT MANAGEMENT [graphic omitted] 9/30/06 SEMIANNUAL REPORT MFS(R) MUNICIPAL SERIES TRUST FOR THE STATES OF: ALABAMA, ARKANSAS, CALIFORNIA, FLORIDA, GEORGIA, MARYLAND, AND MASSACHUSETTS MSTA-SEM MFS(R) MUNICIPAL SERIES TRUST ALABAMA, ARKANSAS, CALIFORNIA, FLORIDA, GEORGIA, MARYLAND, AND MASSACHUSETTS LETTER FROM THE CEO 1 - ---------------------------------------------------------------- PORTFOLIO COMPOSITION 2 - ---------------------------------------------------------------- EXPENSE TABLES 5 - ---------------------------------------------------------------- PORTFOLIO OF INVESTMENTS 8 - ---------------------------------------------------------------- STATEMENTS OF ASSETS AND LIABILITIES 38 - ---------------------------------------------------------------- STATEMENTS OF OPERATIONS 42 - ---------------------------------------------------------------- STATEMENTS OF CHANGES IN NET ASSETS 44 - ---------------------------------------------------------------- FINANCIAL HIGHLIGHTS 46 - ---------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS 61 - ---------------------------------------------------------------- BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT 70 - ---------------------------------------------------------------- PROXY VOTING POLICIES AND INFORMATION 74 - ---------------------------------------------------------------- QUARTERLY PORTFOLIO DISCLOSURE 74 - ---------------------------------------------------------------- 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 MAY LOSE VALUE NO BANK OR CREDIT UNION GUARANTEE NOT A DEPOSIT NOT INSURED BY ANY FEDERAL GOVERNMENT AGENCY OR NCUA/NCUSIF - -------------------------------------------------------------------------------------------------- LETTER FROM THE CEO [Photo of Robert J. Manning] Dear Shareholders: What a difference a year can make. By the end of 2005, the Dow Jones Industrial Average had lost value over the course of the year, as stocks were beaten back by a myriad of investor worries, including a spike in oil prices, a rise in interest rates, and political uncertainty in the Middle East. Fast forward to 2006, and we have seen a dramatically different picture. While there were some fluctuations in the global markets in the first half of the year, the second half of 2006 has, so far, been good to many investors. Oil prices retreated, boosting consumer confidence, and interest rates have held steady. U.S. stock markets responded favorably to this news, as the Dow reached a record high in October, passing the 12,000 mark. What does all of this mean for you? If you're focused on a long-term investment strategy, the high points in the road -- and the bumps -- should not necessarily dictate portfolio action on your part. Markets are inherently cyclical, and we firmly believe that investors who remain committed to a long- term investment strategy are more likely to achieve their goals than those who consistently chase short-term performance. At MFS(R), our unique teamwork approach to managing money and our global research platform support an unwavering focus on helping you realize your long-term financial goals. We believe in a three-pronged investment strategy of allocating your holdings across major asset classes, diversifying within each class, and rebalancing regularly. 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 are essential to capitalizing on the many opportunities the financial markets can offer. Respectfully, /s/ Robert J. Manning Robert J. Manning Chief Executive Officer and Chief Investment Officer MFS Investment Management(R) November 15, 2006 The opinions expressed in this letter are those of MFS, and no forecasts can be guaranteed. PORTFOLIO COMPOSITION MFS(R) Alabama Municipal Bond Fund PORTFOLIO STRUCTURE(i) Municipal Bonds 98.4% Cash & Other Net Assets 1.6% TOP FIVE INDUSTRIES (i) Water & Sewer Utility Revenue 16.2% ----------------------------------------------------- Healthcare Revenue - Hospitals 14.4% ----------------------------------------------------- General Obligations - General Purpose 13.6% ----------------------------------------------------- Utilities - Municipal Owned 10.4% ----------------------------------------------------- State & Local Agencies 8.8% ----------------------------------------------------- CREDIT QUALITY OF BONDS (r) AAA 68.5% ----------------------------------------------------- AA 13.7% ----------------------------------------------------- A 4.6% ----------------------------------------------------- BBB 10.2% ----------------------------------------------------- B 0.3% ----------------------------------------------------- Not Rated 2.7% ----------------------------------------------------- PORTFOLIO FACTS Average Duration (d) 5.5 ----------------------------------------------------- Average Life (m) 14.4 yrs. ----------------------------------------------------- Average Maturity (m) 16.4 yrs. ----------------------------------------------------- Average Credit Quality of Rated Securities (long-term) (a) AA ----------------------------------------------------- Average Credit Quality of Rated Securities (short-term) (a) A-1 ----------------------------------------------------- MFS(R) Arkansas Municipal Bond Fund PORTFOLIO STRUCTURE(i) Municipal Bonds 98.3% Cash & Other Net Assets 1.7% TOP FIVE INDUSTRIES (i) Universities - Colleges 16.9% ----------------------------------------------------- Single Family Housing - State 10.0% ----------------------------------------------------- General Obligations - General Purpose 9.9% ----------------------------------------------------- Water & Sewer Utility Revenue 9.7% ----------------------------------------------------- Healthcare Revenue - Hospitals 9.2% ----------------------------------------------------- CREDIT QUALITY OF BONDS (r) AAA 72.4% ----------------------------------------------------- AA 8.6% ----------------------------------------------------- A 7.8% ----------------------------------------------------- BBB 9.9% ----------------------------------------------------- BB 0.3% ----------------------------------------------------- B 0.6% ----------------------------------------------------- Not Rated 0.4% ----------------------------------------------------- PORTFOLIO FACTS Average Duration (d) 7.0 ----------------------------------------------------- Average Life (m) 16.3 yrs. ----------------------------------------------------- Average Maturity (m) 17.0 yrs. ----------------------------------------------------- Average Credit Quality of Rated Securities (long-term) (a) AA ----------------------------------------------------- Average Credit Quality of Rated Securities (short-term) (a) A-1 ----------------------------------------------------- MFS(R) California Municipal Bond Fund PORTFOLIO STRUCTURE(i) Municipal Bonds 98.2% Cash & Other Net Assets 1.8% TOP FIVE INDUSTRIES (i) General Obligations - Schools 17.7% ----------------------------------------------------- State & Local Agencies 14.9% ----------------------------------------------------- Healthcare Revenue - Hospitals 11.0% ----------------------------------------------------- General Obligations - General Purpose 7.7% ----------------------------------------------------- Universities - Colleges 7.4% ----------------------------------------------------- CREDIT QUALITY OF BONDS (r) AAA 52.9% ----------------------------------------------------- AA 4.7% ----------------------------------------------------- A 18.5% ----------------------------------------------------- BBB 15.8% ----------------------------------------------------- BB 0.6% ----------------------------------------------------- B 0.7% ----------------------------------------------------- Not Rated 6.8% ----------------------------------------------------- PORTFOLIO FACTS Average Duration (d) 6.6 ----------------------------------------------------- Average Life (m) 15.8 yrs. ----------------------------------------------------- Average Maturity (m) 18.2 yrs. ----------------------------------------------------- Average Credit Quality of Rated Securities (long-term) (a) AA- ----------------------------------------------------- Average Credit Quality of Rated Securities (short-term) (a) A-1 ----------------------------------------------------- MFS(R) Florida Municipal Bond Fund PORTFOLIO STRUCTURE(i) Municipal Bonds 97.7% Cash & Other Net Assets 2.3% TOP FIVE INDUSTRIES (i) Healthcare Revenue - Hospitals 17.3% ----------------------------------------------------- Water & Sewer Utility Revenue 15.0% ----------------------------------------------------- General Obligations - Schools 8.5% ----------------------------------------------------- General Obligations - General Purpose 7.3% ----------------------------------------------------- Tax Assessment 5.0% ----------------------------------------------------- CREDIT QUALITY OF BONDS (r) AAA 60.4% ----------------------------------------------------- AA 10.3% ----------------------------------------------------- A 8.4% ----------------------------------------------------- BBB 11.2% ----------------------------------------------------- BB 0.7% ----------------------------------------------------- B 0.3% ----------------------------------------------------- Not Rated 8.7% ----------------------------------------------------- PORTFOLIO FACTS Average Duration (d) 6.3 ----------------------------------------------------- Average Life (m) 17.1 yrs. ----------------------------------------------------- Average Maturity (m) 18.1 yrs. ----------------------------------------------------- Average Credit Quality of Rated Securities (long-term) (a) AA ----------------------------------------------------- Average Credit Quality of Rated Securities (short-term) (a) A-1 ----------------------------------------------------- MFS(R) Georgia Municipal Bond Fund PORTFOLIO STRUCTURE(i) Municipal Bonds 98.4% Cash & Other Net Assets 1.6% TOP FIVE INDUSTRIES (i) Water & Sewer Utility Revenue 24.6% ----------------------------------------------------- Healthcare Revenue - Hospitals 9.5% ----------------------------------------------------- Universities - Colleges 9.3% ----------------------------------------------------- General Obligations - Schools 7.7% ----------------------------------------------------- General Obligations - General Purpose 6.1% ----------------------------------------------------- CREDIT QUALITY OF BONDS (r) AAA 45.6% ----------------------------------------------------- AA 29.9% ----------------------------------------------------- A 9.7% ----------------------------------------------------- BBB 10.5% ----------------------------------------------------- BB 0.4% ----------------------------------------------------- B 0.3% ----------------------------------------------------- Not Rated 3.6% ----------------------------------------------------- PORTFOLIO FACTS Average Duration (d) 6.2 ----------------------------------------------------- Average Life (m) 14.2 yrs. ----------------------------------------------------- Average Maturity (m) 16.2 yrs. ----------------------------------------------------- Average Credit Quality of Rated Securities (long-term) (a) AA ----------------------------------------------------- Average Credit Quality of Rated Securities (short-term) (a) A-1 ----------------------------------------------------- MFS(R) Maryland Municipal Bond Fund PORTFOLIO STRUCTURE(i) Municipal Bonds 97.2% Cash & Other Net Assets 2.8% TOP FIVE INDUSTRIES (i) Healthcare Revenue - Hospitals 19.1% ----------------------------------------------------- General Obligations - Improvement 14.4% ----------------------------------------------------- Universities - Colleges 11.4% ----------------------------------------------------- General Obligations - General Purpose 6.4% ----------------------------------------------------- Water & Sewer Utility Revenue 5.6% ----------------------------------------------------- CREDIT QUALITY OF BONDS (r) AAA 41.2% ----------------------------------------------------- AA 16.9% ----------------------------------------------------- A 19.2% ----------------------------------------------------- BBB 15.5% ----------------------------------------------------- BB 1.1% ----------------------------------------------------- B 0.3% ----------------------------------------------------- Not Rated 5.8% ----------------------------------------------------- PORTFOLIO FACTS Average Duration (d) 6.7 ----------------------------------------------------- Average Life (m) 16.8 yrs. ----------------------------------------------------- Average Maturity (m) 17.9 yrs. ----------------------------------------------------- Average Credit Quality of Rated Securities (long-term) (a) AA- ----------------------------------------------------- Average Credit Quality of Rated Securities (short-term) (a) A-1 ----------------------------------------------------- MFS(R) Massachusetts Municipal Bond Fund PORTFOLIO STRUCTURE(i) Municipal Bonds 98.6% Cash & Other Net Assets 1.4% TOP FIVE INDUSTRIES (i) Universities - Colleges 20.2% ----------------------------------------------------- General Obligations - General Purpose 14.2% ----------------------------------------------------- Healthcare Revenue - Hospitals 11.3% ----------------------------------------------------- Water & Sewer Utility Revenue 6.1% ----------------------------------------------------- General Obligations - Improvement 5.5% ----------------------------------------------------- CREDIT QUALITY OF BONDS (r) AAA 49.0% ----------------------------------------------------- AA 25.0% ----------------------------------------------------- A 8.5% ----------------------------------------------------- BBB 15.4% ----------------------------------------------------- BB 0.7% ----------------------------------------------------- Not Rated 1.4% ----------------------------------------------------- PORTFOLIO FACTS Average Duration (d) 6.3 ----------------------------------------------------- Average Life (m) 14.7 yrs. ----------------------------------------------------- Average Maturity (m) 17.6 yrs. ----------------------------------------------------- Average Credit Quality of Rated Securities (long-term) (a) AA ----------------------------------------------------- Average Credit Quality of Rated Securities (short-term) (a) A-1 ----------------------------------------------------- (a) The average credit quality of rated securities is based upon a market weighted average of portfolio holdings that are rated by public rating agencies. (d) Duration is a measure of how much a bond's price is likely to fluctuate with general changes in interest rates, e.g., if rates rise 1.00%, a bond with a 5-year duration is likely to lose about 5.00% of its value. (i) For purposes of this graphical presentation, the bond component includes both accrued interest amounts and the equivalent expo sure from any derivative holdings, if applicable. (m) The average maturity shown is calculated using the final stated maturity on the portfolio's holdings without taking into accou nt any holdings which have been pre-refunded or pre-paid to an earlier date or which have a mandatory put date prior to the stated ma turity. The average life shown takes into account these earlier dates. (r) Each security is assigned a rating from Moody's Investors Service. If not rated by Moody's, the rating will be that assigned b y Standard & Poor's. Likewise, if not assigned a rating by Standard & Poor's, it will be based on the rating assigned by Fitch, Inc. For th ose portfolios that hold a security which is not rated by any of the three agencies, the security is considered Not Rated. Holding s in U.S. Treasuries and government agency mortgage-backed securities, if any, are included in the "AAA"-rating category. Percentages ar e based on the total market value of investments as of 09/30/06. Percentages are based on net assets as of 09/30/06, unless otherwise noted. The portfolios are actively managed and current holdings may be different. EXPENSE TABLES FUND EXPENSES BORNE BY THE SHAREHOLDERS DURING THE PERIOD, APRIL 1, 2006, THROUGH SEPTEMBER 30, 2006. As a shareholder of the funds, you incur two types of costs: (1) transaction costs, including sales charges (loads) on certain purchase or redemption payments and redemption fees on certain exchanges and redemptions, and (2) ongoing costs, including management fees; distribution and service (12b-1) fees; and other fund expenses. These examples are intended to help you understand your ongoing costs (in dollars) of investing in the funds and to compare these costs with the ongoing costs of investing in other mutual funds. These examples are based on an investment of $1,000 invested at the beginning of the period and held for the entire period April 1, 2006 through September 30, 2006. ACTUAL EXPENSES The first line for each share class in the following tables 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 tables provides information about hypothetical account values and hypothetical expenses based on each fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not each 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 each 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 tables are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as sales charges (loads) or redemption fees. Therefore, the second line for each share class in the tables 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. MFS(R) ALABAMA MUNICIPAL BOND FUND - ------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period(p) Share Expense Account Value Account Value 4/01/06- Class Ratio 4/01/06 9/30/06 9/30/06 - -------------------------------------------------------------------------------- Actual 0.87% $1,000.00 $1,029.80 $4.43 A ------------------------------------------------------------------------ Hypothetical (h) 0.87% $1,000.00 $1,020.71 $4.41 - -------------------------------------------------------------------------------- Actual 1.62% $1,000.00 $1,026.00 $8.23 B ------------------------------------------------------------------------- Hypothetical (h) 1.62% $1,000.00 $1,016.95 $8.19 - -------------------------------------------------------------------------------- MFS(R) ARKANSAS MUNICIPAL BOND FUND - ------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period(p) Share Expense Account Value Account Value 4/01/06- Class Ratio 4/01/06 9/30/06 9/30/06 - -------------------------------------------------------------------------------- Actual 0.67% $1,000.00 $1,031.90 $3.41 A ------------------------------------------------------------------------ Hypothetical (h) 0.67% $1,000.00 $1,021.71 $3.40 - -------------------------------------------------------------------------------- Actual 1.43% $1,000.00 $1,028.00 $7.27 B ------------------------------------------------------------------------- Hypothetical (h) 1.43% $1,000.00 $1,017.90 $7.23 - -------------------------------------------------------------------------------- MFS(R) CALIFORNIA MUNICIPAL BOND FUND - ------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period(p) Share Expense Account Value Account Value 4/01/06- Class Ratio 4/01/06 9/30/06 9/30/06 - -------------------------------------------------------------------------------- Actual 0.62% $1,000.00 $1,031.90 $3.16 A ------------------------------------------------------------------------ Hypothetical (h) 0.62% $1,000.00 $1,021.96 $3.14 - -------------------------------------------------------------------------------- Actual 1.38% $1,000.00 $1,029.80 $7.02 B ------------------------------------------------------------------------- Hypothetical (h) 1.38% $1,000.00 $1,018.15 $6.98 - -------------------------------------------------------------------------------- Actual 1.52% $1,000.00 $1,027.30 $7.72 C ------------------------------------------------------------------------ Hypothetical (h) 1.52% $1,000.00 $1,017.45 $7.69 - -------------------------------------------------------------------------------- MFS(R) FLORIDA MUNICIPAL BOND FUND - ------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period(p) Share Expense Account Value Account Value 4/01/06- Class Ratio 4/01/06 9/30/06 9/30/06 - -------------------------------------------------------------------------------- Actual 0.64% $1,000.00 $1,031.60 $3.26 A ------------------------------------------------------------------------ Hypothetical (h) 0.64% $1,000.00 $1,021.86 $3.24 - -------------------------------------------------------------------------------- Actual 1.40% $1,000.00 $1,027.70 $7.12 B ------------------------------------------------------------------------- Hypothetical (h) 1.40% $1,000.00 $1,018.05 $7.08 - -------------------------------------------------------------------------------- MFS(R) GEORGIA MUNICIPAL BOND FUND - ------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period(p) Share Expense Account Value Account Value 4/01/06- Class Ratio 4/01/06 9/30/06 9/30/06 - -------------------------------------------------------------------------------- Actual 0.94% $1,000.00 $1,032.70 $4.79 A ------------------------------------------------------------------------ Hypothetical (h) 0.94% $1,000.00 $1,020.36 $4.76 - -------------------------------------------------------------------------------- Actual 1.69% $1,000.00 $1,028.80 $8.60 B ------------------------------------------------------------------------- Hypothetical (h) 1.69% $1,000.00 $1,016.60 $8.54 - -------------------------------------------------------------------------------- MFS(R) MARYLAND MUNICIPAL BOND FUND - ------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period(p) Share Expense Account Value Account Value 4/01/06- Class Ratio 4/01/06 9/30/06 9/30/06 - -------------------------------------------------------------------------------- Actual 0.93% $1,000.00 $1,030.90 $4.73 A ------------------------------------------------------------------------ Hypothetical (h) 0.93% $1,000.00 $1,020.41 $4.71 - -------------------------------------------------------------------------------- Actual 1.58% $1,000.00 $1,028.50 $8.03 B ------------------------------------------------------------------------- Hypothetical (h) 1.58% $1,000.00 $1,017.15 $7.99 - -------------------------------------------------------------------------------- MFS(R) MASSACHUSETTS MUNICIPAL BOND FUND - ------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period(p) Share Expense Account Value Account Value 4/01/06- Class Ratio 4/01/06 9/30/06 9/30/06 - -------------------------------------------------------------------------------- Actual 0.89% $1,000.00 $1,031.30 $4.53 A ------------------------------------------------------------------------ Hypothetical (h) 0.89% $1,000.00 $1,020.61 $4.51 - -------------------------------------------------------------------------------- Actual 1.54% $1,000.00 $1,028.00 $7.83 B ------------------------------------------------------------------------- Hypothetical (h) 1.54% $1,000.00 $1,017.35 $7.79 - -------------------------------------------------------------------------------- (h) 5% class return per year before expenses. (p) Expenses paid is equal to each class' annualized expense ratio, as shown above, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year. Expenses paid do not include any applicable sales charges (loads) or redemption fees. If these transaction costs had been included, your costs would have been higher. PORTFOLIO OF INVESTMENTS 9/30/06 (unaudited) MFS(R) ALABAMA MUNICIPAL BOND FUND The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Municipal Bonds - 97.2% - --------------------------------------------------------------------------------------------------------------------------------- ISSUER SHARES/PAR VALUE ($) - --------------------------------------------------------------------------------------------------------------------------------- Airport & Port Revenue - 2.5% - --------------------------------------------------------------------------------------------------------------------------------- Alabama Docks Department Facilities Rev., MBIA, 5.5%, 2022 $1,000,000 $ 1,049,880 Alabama Port Authority Docks Facility, MBIA, 5.25%, 2026 1,000,000 1,046,840 - --------------------------------------------------------------------------------------------------------------------------------- $ 2,096,720 - --------------------------------------------------------------------------------------------------------------------------------- General Obligations - General Purpose - 13.5% - --------------------------------------------------------------------------------------------------------------------------------- Boaz, AL, School Warrants, "A", XLCA, 5%, 2025 $1,000,000 $ 1,050,990 Boaz, AL, School Warrants, "A", XLCA, 5%, 2029 650,000 680,089 Fairfield, AL, Refunding Warrants, AMBAC, 5.25%, 2025 1,030,000 1,102,213 Gadsden, AL, Warrants, "B", AMBAC, 5.125%, 2028 1,500,000 1,603,860 Hoover, AL, "B", 6%, 2010 (c) 500,000 541,790 Houston County, AL, AMBAC, 6.25%, 2009 (c) 750,000 821,850 Jefferson County, AL, School Warrants, FSA, 5.5%, 2020 1,750,000 1,846,985 Mobile County, AL, 6%, 2009 (c) 1,345,000 1,432,008 Morgan County, AL, Warrants, AMBAC, 5%, 2028 1,380,000 1,448,517 Puerto Rico Commonwealth, Public Improvement, "A", 5.25%, 2030 1,000,000 1,067,500 - --------------------------------------------------------------------------------------------------------------------------------- $ 11,595,802 - --------------------------------------------------------------------------------------------------------------------------------- General Obligations - Improvement - 5.6% - --------------------------------------------------------------------------------------------------------------------------------- Birmingham, AL, "A", 5.75%, 2017 $1,000,000 $ 1,080,010 Birmingham, AL, "B", 5.75%, 2009 (c) 1,820,000 1,936,243 Birmingham, AL, "B", 5.75%, 2019 180,000 190,836 Montgomery, AL, Warrants, MBIA, 5.1%, 2021 1,005,000 1,060,838 Puerto Rico Municipal Finance Agency, RITES, FSA, 7.099%, 2017 (v)(z) 500,000 563,200 - --------------------------------------------------------------------------------------------------------------------------------- $ 4,831,127 - --------------------------------------------------------------------------------------------------------------------------------- General Obligations - Schools - 5.7% - --------------------------------------------------------------------------------------------------------------------------------- Bessemer, AL, School Warrants, AMBAC, 5.5%, 2020 $2,015,000 $ 2,161,087 Phenix City, AL, AMBAC, 5.65%, 2010 (c) 1,500,000 1,635,615 Tuscaloosa, AL, Warrants, 5.7%, 2010 (c) 1,000,000 1,074,470 - --------------------------------------------------------------------------------------------------------------------------------- $ 4,871,172 - --------------------------------------------------------------------------------------------------------------------------------- Healthcare Revenue - Hospitals - 14.2% - --------------------------------------------------------------------------------------------------------------------------------- Alabama Special Care Facilities Financing Authority (Daughters of Charity), AMBAC, ETM, 5%, 2025 (c) $1,500,000 $ 1,508,565 Alexander City, AL, Special Care Facilities Financing Authority Medical Facilities Rev. (Russell Hospital Corp.), "A", 5.75%, 2036 500,000 524,635 Birmingham Medical Center, East Alabama, Special Health Care Facilities, Eastern Health Systems, "B", 5%, 2018 500,000 504,520 Birmingham, AL, Baptist Health Systems, "A" (Baptist Medical Center), 5.625%, 2015 300,000 319,620 Birmingham, AL, Baptist Medical Center, Special Care Facilities Rev. (Baptist Health Systems, Inc.), "A", 5%, 2030 200,000 204,546 Health Care Authority For Baptist Health, "D", 5%, 2021 400,000 417,840 Houston County, AL, Health Care Authority, AMBAC, 6.125%, 2009 (c) 1,000,000 1,082,360 Huntsville, AL, Health Care Authority Rev., 5.625%, 2026 950,000 999,258 Huntsville, AL, Health Care Authority Rev., "A", MBIA, 5%, 2023 1,000,000 1,026,390 Lauderdale County & Florence, AL, Health Care Authority Rev. (Eliza Coffee Memorial Hospital), MBIA, 5.75%, 2008 (c) 1,000,000 1,037,810 Lauderdale County & Florence, AL, Health Care Authority Rev., "A" (Coffee Health Group), MBIA, 5.75%, 2014 1,000,000 1,060,620 Marshall County, AL, Health Care Authority Rev., "A", 5.75%, 2032 1,065,000 1,128,240 Montgomery, AL, Medical Clinic Board Rev. (Jackson Hospital & Clinic), AMBAC, 5.875%, 2016 1,000,000 1,018,730 Montgomery, AL, Special Care Facilities, Financing Authority Rev. (Baptist Health), "A-2", MBIA, 0% to 2007, 5% to 2014 (c) 1,135,000 1,161,480 Valley, AL, Special Care Facilities Financing Authority, "A" (Lanier Memorial Hospital), 5.65%, 2022 225,000 226,906 - --------------------------------------------------------------------------------------------------------------------------------- $ 12,221,520 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Metals - 0.6% - --------------------------------------------------------------------------------------------------------------------------------- Mobile County, AL, Industrial Development Authority Rev. (Ipsco, Inc.), 6.875%, 2030 $ 500,000 $ 532,170 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Other - 0.5% - --------------------------------------------------------------------------------------------------------------------------------- Fairfield, AL, Environment Improvement Rev. (USX Corp.), 5.4%, 2016 $ 400,000 $ 431,152 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Paper - 3.7% - --------------------------------------------------------------------------------------------------------------------------------- Butler, AL, Industrial Development Board, Solid Waste Disposal Rev. (Georgia Pacific Corp.), 5.75%, 2028 $ 200,000 $ 204,722 Camden, AL, Industrial Development Board Exempt Rev., "B" (Weyerhaeuser), 6.375%, 2024 500,000 549,415 Mobile, AL, Industrial Development Board Improvement Rev., "A" (International Paper Co.), 6.35%, 2016 650,000 690,781 Mobile, AL, Industrial Development Board Improvement Rev., "B" (International Paper Co.), 6.45%, 2019 350,000 371,812 Phenix City, AL, Environmental Improvement Rev., "A" (MeadWestvaco), 6.35%, 2035 750,000 819,667 Selma, AL, Industrial Development Board, "A" (International Paper Co.), 6.7%, 2018 500,000 537,250 - --------------------------------------------------------------------------------------------------------------------------------- $ 3,173,647 - --------------------------------------------------------------------------------------------------------------------------------- Miscellaneous Revenue - Other - 1.8% - --------------------------------------------------------------------------------------------------------------------------------- Birmingham, AL, Downtown Redevelopment Authority Rev. (Social Security Administrative Building), ETM, 12.5%, 2010 (c) $1,290,000 $ 1,516,227 - --------------------------------------------------------------------------------------------------------------------------------- Multi-Family Housing Revenue - 2.5% - --------------------------------------------------------------------------------------------------------------------------------- Alabama Housing Finance Authority, Multi-Family Residential Development Rev., "K" (South Bay Apartments), FNMA, 5.875%, 2021 $ 960,000 $ 1,012,973 Alabama Housing Finance Authority, Multi-Family Residential Development Rev., FHA, 7.25%, 2023 1,080,000 1,088,716 Birmingham, AL, Multi-Family Housing Rev., "C" (Beaconview Apartments), 8%, 2030 (d) 395,000 19,750 - --------------------------------------------------------------------------------------------------------------------------------- $ 2,121,439 - --------------------------------------------------------------------------------------------------------------------------------- Single Family Housing - State - 1.3% - --------------------------------------------------------------------------------------------------------------------------------- Alabama Housing Finance Authority, Collateral Home Mortgage Bond Program II, "B", 5.15%, 2019 $ 55,000 $ 56,337 Alabama Housing Finance Authority, Single Family Mortgage Rev., Collateral Home Mortgage Bond Program I, "B-1", 5.7%, 2015 375,000 383,809 Alabama Housing Finance Authority, Single Family Mortgage Rev., Collateral Home Mortgage Bond Program II, "A-2", GNMA, 5.4%, 2022 605,000 618,044 Alabama Housing Finance Authority, Single Family Mortgage Rev., Collateral Home Mortgage Bond Program II, "B", 5.15%, 2019 60,000 61,459 - --------------------------------------------------------------------------------------------------------------------------------- $ 1,119,649 - --------------------------------------------------------------------------------------------------------------------------------- State & Local Agencies - 8.7% - --------------------------------------------------------------------------------------------------------------------------------- Alabama Building Renovation Authority, AMBAC, 6%, 2014 $1,515,000 $ 1,640,487 Alabama Building Renovation Finance Authority, FSA, 4.5%, 2031 500,000 500,760 Alabama Public School & College, Capital Improvement, "A", 5%, 2019 500,000 523,085 Alabama Public School & College, Capital Improvement, "C", 5.75%, 2017 1,000,000 1,066,210 Alabama Public School & College, Capital Improvement, "C", 5.75%, 2018 1,035,000 1,103,527 Jefferson County, AL, Board of Education, "A", FSA, 5.8%, 2007 (c) 865,000 889,246 Montgomery County, AL, Public Building Authority Rev., MBIA, 5%, 2031 500,000 525,645 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2013 (v)(z) 500,000 604,830 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2016 (v)(z) 500,000 631,470 - --------------------------------------------------------------------------------------------------------------------------------- $ 7,485,260 - --------------------------------------------------------------------------------------------------------------------------------- Tax - Other - 1.2% - --------------------------------------------------------------------------------------------------------------------------------- Virgin Islands Public Finance Authority, "A", 5.5%, 2018 $1,000,000 $ 1,036,320 - --------------------------------------------------------------------------------------------------------------------------------- Tobacco - 0.5% - --------------------------------------------------------------------------------------------------------------------------------- Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, 5.375%, 2033 $ 450,000 $ 464,247 - --------------------------------------------------------------------------------------------------------------------------------- Universities - Colleges - 7.2% - --------------------------------------------------------------------------------------------------------------------------------- Alabama Board of Education Rev., Refunding & Improvement (Southern Union State Community College), MBIA, 5%, 2022 $1,000,000 $ 1,049,620 Alabama Private Colleges & Universities, Facilities Authority Rev. (Tuskegee University), ASST GTY, 4.75%, 2026 1,000,000 1,023,590 Auburn University, General Fee Rev., AMBAC, 5%, 2029 1,000,000 1,049,200 Mobile, AL, Spring Hill College, Educational Building Authority Rev., "A", 5.25%, 2034 1,360,000 1,448,604 University of Alabama, General Rev., "A", MBIA, 5%, 2029 1,000,000 1,050,990 University of Alabama, University Rev., General Fee, FGIC, 5%, 2021 525,000 555,697 - --------------------------------------------------------------------------------------------------------------------------------- $ 6,177,701 - --------------------------------------------------------------------------------------------------------------------------------- Utilities - Municipal Owned - 10.4% - --------------------------------------------------------------------------------------------------------------------------------- Alabama Municipal Electric Power Authority, "A", MBIA, 5%, 2023 $1,000,000 $ 1,058,150 Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2013 (v)(z) 500,000 561,530 Guam Power Authority Rev., RITES, AMBAC, 6.065%, 2018 (v)(z) 4,500,000 4,883,040 Puerto Rico Electric Power Authority Rev., "II", 5.25%, 2031 875,000 922,617 Southeastern Alabama Gas District Systems Rev., "A", AMBAC, 5.5%, 2020 1,000,000 1,077,420 Tuskegee, AL, Utilities Board, AMBAC, 5.5%, 2022 400,000 409,944 - --------------------------------------------------------------------------------------------------------------------------------- $ 8,912,701 - --------------------------------------------------------------------------------------------------------------------------------- Utilities - Other - 1.2% - --------------------------------------------------------------------------------------------------------------------------------- Foley, AL, Utilities Board Utilities Rev., FSA, 5%, 2025 $1,000,000 $ 1,058,270 - --------------------------------------------------------------------------------------------------------------------------------- Water & Sewer Utility Revenue - 16.1% - --------------------------------------------------------------------------------------------------------------------------------- Alabama Drinking Water Finance Authority, Revolving Fund Loan, "A", AMBAC, 6%, 2021 $ 725,000 $ 783,674 Alabama Drinking Water Finance Authority, Revolving Fund Loan, "C", AMBAC, 5.75%, 2018 1,000,000 1,075,600 Alabama Water Pollution Control Authority, Revolving Fund Loan, "B", AMBAC, 5.5%, 2016 1,000,000 1,006,800 Alabama Water Pollution Control Authority, Revolving Fund Loan, "B", AMBAC, 5.5%, 2020 1,380,000 1,389,384 Alabama Water Pollution Control Authority, Revolving Fund Loan, AMBAC, 5.75%, 2019 1,000,000 1,056,560 Alabaster, AL, Sewer Rev., AMBAC, 5%, 2029 750,000 786,255 Bessemer, AL, Water Rev., Warrants, "A", AMBAC, 5.75%, 2026 1,000,000 1,021,300 Birmingham, AL, Waterworks & Sewer Board Rev., "A", FGIC, 5%, 2034 1,365,000 1,432,117 Birmingham, AL, Waterworks & Sewer Board Rev., "B", MBIA, 5%, 2043 525,000 540,839 Jasper, AL, Waterworks & Sewer Board, "A", AMBAC, 5.2%, 2020 750,000 796,073 Limestone County, AL, Water Authority, FGIC, 5.5%, 2009 (c) 2,650,000 2,769,568 Madison, AL, Water & Wastewater Board, MBIA, 5.5%, 2019 1,000,000 1,022,850 Ozark, AL, Utilities Board Water & Sewer Rev., AMBAC, 5%, 2031 100,000 104,783 - --------------------------------------------------------------------------------------------------------------------------------- $ 13,785,803 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $78,844,401) $ 83,430,927 - --------------------------------------------------------------------------------------------------------------------------------- Floating Rate Demand Notes - 1.1% - --------------------------------------------------------------------------------------------------------------------------------- Jefferson County, AL, Sewer Rev., Capital Improvement Warrants, "A", 3.78%, due 10/05/06 $ 100,000 $ 100,000 Jefferson County, AL, Sewer Rev., Warrants, "B-4", 3.78%, due 10/05/06 900,000 900,000 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL FLOATING RATE DEMAND NOTES (IDENTIFIED COST, $1,000,000) $ 1,000,000 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL INVESTMENTS (IDENTIFIED COST, $79,844,401) (k) $ 84,430,927 - --------------------------------------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - 1.7% 1,426,742 - --------------------------------------------------------------------------------------------------------------------------------- NET ASSETS - 100.0% $ 85,857,669 - --------------------------------------------------------------------------------------------------------------------------------- SWAP AGREEMENTS AT 9/30/06 UNREALIZED NOTIONAL CASH FLOWS CASH FLOWS APPRECIATION EXPIRATION AMOUNT COUNTERPARTY TO RECEIVE TO PAY (DEPRECIATION) - -------------------------------------------------------------------------------------------------------------------------------- INTEREST RATE SWAPS 12/01/07 USD 2,000,000 Merrill Lynch 7-Day BMA 2.795% (fixed rate) $ 17,215 1/11/22 USD 1,000,000 Merrill Lynch 5.7628% (fixed rate) 3-Month LIBOR 52,106 11/09/26 USD 750,000 Goldman Sachs 5.787% (fixed rate) 3-Month LIBOR 46,093 11/16/26 USD 1,000,000 Merrill Lynch 5.856% (fixed rate) 3-Month LIBOR 69,467 - -------------------------------------------------------------------------------------------------------------------------------- $184,881 - -------------------------------------------------------------------------------------------------------------------------------- At September 30, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts. SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS PORTFOLIO OF INVESTMENTS 9/30/06 (unaudited) MFS(R) ARKANSAS MUNICIPAL BOND FUND The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Municipal Bonds - 97.1% - -------------------------------------------------------------------------------------------------------------------------------- ISSUER SHARES/PAR VALUE ($) - -------------------------------------------------------------------------------------------------------------------------------- Airport and Port Revenue - 0.6% - --------------------------------------------------------------------------------------------------------------------------------- Little Rock, AR, Airport Rev., "A", FSA, 5.25%, 2019 $ 800,000 $ 834,520 - --------------------------------------------------------------------------------------------------------------------------------- General Obligations - General Purpose - 9.8% - --------------------------------------------------------------------------------------------------------------------------------- Arkansas College Savings, "A", 0%, 2017 $1,840,000 $ 1,183,930 Commonwealth of Puerto Rico, Infrastructure, RITES, ETM, 7.094%, 2019 (v)(z)(c) 1,250,000 1,436,200 Commonwealth of Puerto Rico, Public Improvement, "A", CIFG, 5%, 2034 1,000,000 1,046,960 Commonwealth of Puerto Rico, Public Improvement, "A", 5.25%, 2027 2,000,000 2,146,480 Commonwealth of Puerto Rico, RITES, MBIA, 7.594%, 2020 (z)(v) 3,000,000 3,449,640 Puerto Rico Public Buildings Authority Rev. (State Office Building), "F", XLCA, 5.25%, 2025 2,000,000 2,295,820 Sebastian County, AR, Community Refunding & Improvement, AMBAC, 5.6%, 2007 (c) 1,500,000 1,530,180 - --------------------------------------------------------------------------------------------------------------------------------- $ 13,089,210 - --------------------------------------------------------------------------------------------------------------------------------- General Obligations - Improvement - 3.4% - --------------------------------------------------------------------------------------------------------------------------------- Puerto Rico Municipal Finance Agency, RITES, FSA, 7.099%, 2017 (z)(v) $ 735,000 $ 827,903 Puerto Rico Municipal Finance Agency, RITES, FSA, 7.099%, 2018 (z)(v) 3,250,000 3,660,800 - --------------------------------------------------------------------------------------------------------------------------------- $ 4,488,703 - --------------------------------------------------------------------------------------------------------------------------------- General Obligations - Schools - 6.3% - --------------------------------------------------------------------------------------------------------------------------------- Arkansas, Capital Appreciation, College Savings, "B", 0%, 2012 $1,200,000 $ 958,548 Arkansas, Capital Appreciation, College Savings, "B", 0%, 2013 1,000,000 765,700 Arkansas, Capital Appreciation, College Savings, "B", 0%, 2014 1,150,000 843,410 Arkansas, Capital Appreciation, College Savings, "B", 0%, 2015 1,100,000 774,730 Little Rock, AR, School District Construction, "C", FSA, 5%, 2017 1,000,000 1,046,990 Little Rock, AR, School District, "A", FSA, 5.4%, 2017 1,000,000 1,053,950 Northwest Arkansas Community College District, Capital Improvement, AMBAC, 5%, 2028 1,380,000 1,461,089 Pine Bluff, AR, School District Construction, MBIA, 4.75%, 2033 1,500,000 1,515,675 - --------------------------------------------------------------------------------------------------------------------------------- $ 8,420,092 - --------------------------------------------------------------------------------------------------------------------------------- Healthcare Revenue - Hospitals - 9.1% - --------------------------------------------------------------------------------------------------------------------------------- Arkansas Development Finance Authority Rev. (Washington Regional Medical Center), 7.25%, 2010 (c) $ 500,000 $ 556,010 Arkansas Development Finance Authority, Health Refunding Rev. (Sister of Mercy), "A", MBIA, 5%, 2013 4,200,000 4,355,862 Batesville, AR, Medical District Rev. (White River Medical Center), 5.5%, 2024 750,000 784,672 Baxter County, AR, Hospital Rev., Refunding & Improvement, "B", 5.6%, 2021 1,500,000 1,552,290 Crittenden County, AR, Hospital Rev., Refunding & Improvement, 7.15%, 2025 750,000 759,712 Jefferson County, AR, Hospital Rev., Refunding & Improvement (Regional Medical Center), 5.8%, 2021 1,000,000 1,070,050 Little Rock, AR, Health Facilities Hospital Board Rev. (Baptist Medical Center), 6.9%, 2009 400,000 431,792 North Little Rock, AR, Health Facilities Board Rev. (Baptist Health Facilities), 5.7%, 2022 500,000 520,490 Sebastian County, AR, Health Facilities Improvement Rev. (Sparks Regional Medical Center), "A", 5.25%, 2021 1,000,000 1,039,980 Washington County, AR, Hospital Rev. (Regional Medical Center), "A", 5%, 2035 1,000,000 1,021,100 - --------------------------------------------------------------------------------------------------------------------------------- $ 12,091,958 - --------------------------------------------------------------------------------------------------------------------------------- Healthcare Revenue - Long Term Care - 1.0% - --------------------------------------------------------------------------------------------------------------------------------- Arkansas Development Finance Authority Rev. (Evangelical Lutheran Project), "B", AMBAC, 5.375%, 2009 (c) $1,315,000 $ 1,402,053 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Other - 0.3% - --------------------------------------------------------------------------------------------------------------------------------- Virgin Islands Public Finance Authority, Refinery Facilities Rev. (Hovensa Refinery), 5.875%, 2022 $ 335,000 $ 365,110 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Paper - 1.2% - --------------------------------------------------------------------------------------------------------------------------------- Arkansas Development Finance Authority, Industrial Facilities Rev. (Potlatch Corp.), "A", 7.75%, 2025 $ 250,000 $ 284,090 Camden, AR, Environmental Improvement Rev. (International Paper Co.), "A", 5%, 2018 750,000 765,960 Pine Bluff, AR, Environmental Improvement (International Paper Co.), "A", 5.55%, 2022 250,000 256,348 Pine Bluff, AR, Environmental Refunding (International Paper Co.), "A", 6.7%, 2020 300,000 324,474 - --------------------------------------------------------------------------------------------------------------------------------- $ 1,630,872 - --------------------------------------------------------------------------------------------------------------------------------- Multi-Family Housing Revenue - 0.8% - --------------------------------------------------------------------------------------------------------------------------------- Fort Smith, AR, Residential Housing Facilities Board Rev. (Gorman Towers), "A", GNMA, 5.45%, 2037 $1,000,000 $ 1,034,070 - --------------------------------------------------------------------------------------------------------------------------------- Single Family Housing - Local - 7.5% - --------------------------------------------------------------------------------------------------------------------------------- Harrison, AR, Residential Housing Facilities Board, Single Family Mortgage Rev., FGIC, ETM, 7.4%, 2011 (c) $4,000,000 $ 4,646,840 Lonoke County, AR, Residential Housing Facilities Rev., "A-2", "FNMA, 7.9%, 2011 76,793 78,342 Pulaski County, AR, Public Facilities Board Rev., "A", GNMA, 5.75%, 2034 1,850,000 1,898,600 Pulaski County, AR, Public Facilities Board Rev., "C", FNMA, 0%, 2014 2,750,000 1,899,975 Sherwood, AR, Residential Housing Facilities Board, Single Family Rev., MBIA, 7.5%, 2010 (c) 1,250,000 1,427,250 - --------------------------------------------------------------------------------------------------------------------------------- $ 9,951,007 - --------------------------------------------------------------------------------------------------------------------------------- Single Family Housing - State - 9.8% - --------------------------------------------------------------------------------------------------------------------------------- Arkansas Development Finance Authority Rev., "1", 0%, 2011 $ 175,000 $ 120,111 Arkansas Development Finance Authority Rev., Mortgage Backed Securities Program, "B", GNMA, 5%, 2029 215,000 220,779 Arkansas Development Finance Authority Rev., Mortgage Backed Securities Program, "B", GNMA, 4.45%, 2034 1,105,000 1,105,210 Arkansas Development Finance Authority Rev., Mortgage Backed Securities Program, "C", GNMA, 5.35%, 2027 1,560,000 1,596,317 Arkansas Development Finance Authority Rev., Mortgage Backed Securities Program, "E", GNMA, 5.4%, 2034 790,000 816,678 Arkansas Development Finance Authority Rev., Single Family Rev., Mortgage Backed Securities Program, "D", GNMA, 5.85%, 2024 925,000 931,780 Arkansas Development Finance Authority, Mortgage Backed Securities Program, "C", 5.625%, 2035 1,740,000 1,851,064 Arkansas Development Finance Authority, Single Family Mortgage Rev., "B", GNMA, 5.125%, 2024 445,000 458,377 Arkansas Development Finance Authority, Single Family Mortgage Rev., "B", GNMA, 4.85%, 2031 1,000,000 1,009,150 Arkansas Development Finance Authority, Single Family Mortgage Rev., "B", GNMA, 5.25%, 2035 2,675,000 2,765,201 Arkansas Development Finance Authority, Single Family Rev., Mortgage Backed Securities Program, "C", 5.3%, 2023 440,000 443,243 Arkansas Development Finance Authority, Single Family Rev., Mortgage Backed Securities Program, "I", GNMA, 5.3%, 2033 430,000 437,701 Arkansas Housing Development Agency, Single Family Rev., Mortgage Program, ETM, 8.375%, 2011 (c) 1,000,000 1,205,870 Puerto Rico Housing Finance Authority Rev., Mortgage Backed Securities, "A", 4.375%, 2017 165,000 166,186 - --------------------------------------------------------------------------------------------------------------------------------- $ 13,127,667 - --------------------------------------------------------------------------------------------------------------------------------- State & Local Agencies - 2.5% - --------------------------------------------------------------------------------------------------------------------------------- Arkansas Development Finance Authority Rev., Environmental State Agency Facilities, "A", AMBAC, 5%, 2040 $2,500,000 $ 2,621,525 Arkansas Development Finance Authority, Economic Development Rev. (Agritecsorbents LLC) "B", 5%, 2018 175,000 181,270 Arkansas Development Finance Authority, Economic Development Rev. (Madison Industrial), "B", AMBAC, 5.8%, 2020 500,000 515,465 - --------------------------------------------------------------------------------------------------------------------------------- $ 3,318,260 - --------------------------------------------------------------------------------------------------------------------------------- Tax - Other - 3.2% - --------------------------------------------------------------------------------------------------------------------------------- Little Rock, AR, Hotel & Restaurant Gross Receipts Tax Rev., 7.375%, 2015 $2,790,000 $ 3,299,510 Virgin Islands Public Finance Authority Rev., "A", 5.5%, 2022 1,000,000 1,035,150 - --------------------------------------------------------------------------------------------------------------------------------- $ 4,334,660 - --------------------------------------------------------------------------------------------------------------------------------- Tobacco - 1.8% - --------------------------------------------------------------------------------------------------------------------------------- Arkansas Development Finance Authority, Tobacco Settlement Rev. (Cancer Research Center Project), AMBAC, 0%, 2026 $2,000,000 $ 815,560 Arkansas Development Finance Authority, Tobacco Settlement Rev. (Cancer Research Center Project), AMBAC, 0%, 2036 1,200,000 294,672 Arkansas Development Finance Authority, Tobacco Settlement Rev. (Cancer Research Center Project), AMBAC, 0%, 2027 1,940,000 748,316 Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, 5.375%, 2033 230,000 237,282 Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, 5.5%, 2039 290,000 300,228 - --------------------------------------------------------------------------------------------------------------------------------- $ 2,396,058 - --------------------------------------------------------------------------------------------------------------------------------- Transportation - Special Tax - 2.6% - --------------------------------------------------------------------------------------------------------------------------------- Commonwealth of Puerto Rico Highway & Transportation Authority, "B", MBIA, 5.875%, 2010 (c) $2,000,000 $ 2,183,400 Commonwealth of Puerto Rico Highway & Transportation Authority, "G", 5%, 2023 750,000 779,505 Commonwealth of Puerto Rico Highway & Transportation Authority, "G", FGIC, 5%, 2022 500,000 531,690 - --------------------------------------------------------------------------------------------------------------------------------- $ 3,494,595 - --------------------------------------------------------------------------------------------------------------------------------- Universities - Colleges - 16.6% - --------------------------------------------------------------------------------------------------------------------------------- Arkansas State University, Student Fee-ASU (Newport Campus), AMBAC, 5%, 2028 $ 700,000 $ 713,244 Conway, AR, Public Facilities Board, Capital Improvement Rev. (Hendrix College), "B", 5%, 2035 1,000,000 1,021,790 Pulaski, AR, Student Tuition & Fee Rev. (Technical College), FGIC, 5%, 2029 1,820,000 1,895,421 Siloam Springs, AR, Public Education Facilities, Capital Improvement Rev. (John Brown University), AMBAC, 5.35%, 2020 500,000 528,340 University of Arkansas, University Construction Rev. (Monticello), AMBAC, 5%, 2025 1,525,000 1,606,420 University of Arkansas, University Construction Rev. (UAMS Campus), "B", MBIA, 5%, 2026 1,405,000 1,486,181 University of Arkansas, University Construction Rev. (UAMS Campus), "B", MBIA, 5%, 2027 1,000,000 1,057,080 University of Arkansas, University Construction Rev. (UAMS Campus), "B", MBIA, 5%, 2034 3,290,000 3,447,887 University of Arkansas, University Facilities Rev. (Fayetteville Campus), FGIC, 5%, 2027 3,155,000 3,297,511 University of Arkansas, University Facilities Rev. (Fayetteville Campus), FGIC, 5%, 2032 2,500,000 2,597,775 University of Arkansas, University Facilities Rev. (Pine Bluff Campus), "A", AMBAC, 5%, 2030 1,000,000 1,058,690 University of Arkansas, University Facilities Rev. (UAMS Campus), FGIC, 5%, 2028 2,000,000 2,118,440 University of Central Arkansas Rev., "A", AMBAC, 5%, 2023 1,100,000 1,116,544 University of Central Arkansas, Student Housing Rev., "C", FGIC, 5%, 2034 250,000 255,777 - --------------------------------------------------------------------------------------------------------------------------------- $ 22,201,100 - --------------------------------------------------------------------------------------------------------------------------------- Universities - Dormitories - 2.6% - --------------------------------------------------------------------------------------------------------------------------------- Arkansas State University, Housing Systems Rev., AMBAC, 5.15%, 2021 $1,240,000 $ 1,301,157 Arkansas Technical University, Housing Systems Rev., AMBAC, 5.2%, 2026 1,000,000 1,081,140 Pope County, AR, Residential Housing, Facilities Board Rev. (Arkansas Technical University Project), "A", 6%, 2027 500,000 506,680 University of Central Arkansas, Student Housing Rev., "C", FGIC, 5.25%, 2029 500,000 518,045 - --------------------------------------------------------------------------------------------------------------------------------- $ 3,407,022 - --------------------------------------------------------------------------------------------------------------------------------- Utilities - Investor Owned - 0.6% - --------------------------------------------------------------------------------------------------------------------------------- Jefferson County, AR, Pollution Control Rev. (Entergy Arkansas, Inc., Project), 4.6%, 2017 $ 750,000 $ 759,428 - --------------------------------------------------------------------------------------------------------------------------------- Utilities - Municipal Owned - 7.7% - --------------------------------------------------------------------------------------------------------------------------------- Benton, AR, Utilities Rev., AMBAC, 5%, 2030 $ 470,000 $ 488,979 North Little Rock, AR, Electric Rev., "A", MBIA, 6.5%, 2010 1,650,000 1,743,390 North Little Rock, AR, Electric Rev., "A", MBIA, 6.5%, 2015 6,000,000 6,955,320 Puerto Rico Electric Power Authority Rev., "NN", 5.125%, 2024 1,000,000 1,056,160 - --------------------------------------------------------------------------------------------------------------------------------- $ 10,243,849 - --------------------------------------------------------------------------------------------------------------------------------- Water & Sewer Utility Revenue - 9.7% - --------------------------------------------------------------------------------------------------------------------------------- Arkansas Development Finance Authority, Economic Development Rev., "I", AMBAC, 5.65%, 2014 $ 375,000 $ 379,208 Fort Smith, AR, Water & Sewer Rev., "C", FSA, 5.25%, 2020 1,315,000 1,408,312 Fort Smith, AR, Water & Sewer Rev., AMBAC, 5.65%, 2009 (c) 1,000,000 1,059,980 Fort Smith, AR, Water & Sewer Rev., Refunding & Construction, "A", FSA, 5%, 2019 2,125,000 2,230,081 Fort Smith, AR, Water & Sewer Rev., Refunding & Construction, "A", FSA, 5%, 2021 2,750,000 2,870,780 Little Rock, AR, Sewer Rev., Refunding & Construction, 5%, 2022 1,750,000 1,823,658 Paragould, AR, Water Sewer & Electric Rev., AMBAC, 5.6%, 2010 (c) 765,000 825,397 South Sebastian County, AR, Water Refunding Rev., MBIA, 5%, 2038 1,000,000 1,018,580 Virgin Islands Water & Power Authority Rev., ASST GTY, 5.3%, 2018 1,250,000 1,300,688 - --------------------------------------------------------------------------------------------------------------------------------- $ 12,916,684 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $121,423,961) $129,506,918 - --------------------------------------------------------------------------------------------------------------------------------- Floating Rate Demand Notes - 0.8% - --------------------------------------------------------------------------------------------------------------------------------- Chicago, IL, Midway Airport Rev., Second Lien, "B", 3.95%, due 10/12/06 $ 700,000 $ 700,000 Georgia Municipal Electric Authority Rev., 3.76%, due 10/11/06 300,000 300,000 State of Oregon, "73G", 3.8%, due 10/11/06 100,000 100,000 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL FLOATING RATE DEMAND NOTES (IDENTIFIED COST, $1,100,000) $ 1,100,000 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL INVESTMENTS (IDENTIFIED COST, $122,523,961) (k) $130,606,918 - --------------------------------------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - 2.1% 2,780,022 - --------------------------------------------------------------------------------------------------------------------------------- NET ASSETS - 100.0% $133,386,940 - -------------------------------------------------------------------------------------------------------------------------------- SWAP AGREEMENTS AT 9/30/06 UNREALIZED NOTIONAL CASH FLOWS CASH FLOWS APPRECIATION EXPIRATION AMOUNT COUNTERPARTY TO RECEIVE TO PAY (DEPRECIATION) - --------------------------------------------------------------------------------------------------------------------------------- INTEREST RATE SWAPS 12/01/07 USD 3,000,000 Merrill Lynch 7-Day LIBOR 2.795% (fixed rate) $ 25,825 11/09/26 USD 1,500,000 Goldman Sachs 5.787% (fixed rate) 3-Month LIBOR 92,186 11/16/26 USD 1,500,000 Merrill Lynch 5.856% (fixed rate) 3-Month LIBOR 104,200 - --------------------------------------------------------------------------------------------------------------------------------- $222,211 - --------------------------------------------------------------------------------------------------------------------------------- At September 30, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts. SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS PORTFOLIO OF INVESTMENTS 9/30/06 (unaudited) MFS(R) CALIFORNIA MUNICIPAL BOND FUND The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Municipal Bonds - 97.3% - --------------------------------------------------------------------------------------------------------------------------------- ISSUER SHARES/PAR VALUE ($) - --------------------------------------------------------------------------------------------------------------------------------- Airport & Port Revenue - 4.0% - --------------------------------------------------------------------------------------------------------------------------------- Long Beach, CA, Harbor Rev., "A" FGIC, 5.25%, 2018 $3,500,000 $ 3,695,400 Los Angeles, CA, Department of Airports Rev. (Ontario International Airport), "A", FGIC, 6%, 2017 4,100,000 4,150,389 Los Angeles, CA, Harbor Department Rev., "B", 5.375%, 2023 3,000,000 3,034,080 Palm Springs, CA, Palm Springs International Airport, 5.55%, 2028 530,000 542,667 Port Oakland, CA, "K", FGIC, 5.75%, 2020 4,000,000 4,259,680 - --------------------------------------------------------------------------------------------------------------------------------- $ 15,682,216 - --------------------------------------------------------------------------------------------------------------------------------- General Obligations - General Purpose - 7.7% - --------------------------------------------------------------------------------------------------------------------------------- Commonwealth of Puerto Rico, ROLS, Series II R 124B, XLCA, 7.483%, 2017 (z)(v) $1,500,000 $ 1,934,790 Commonwealth of Puerto Rico, ROLS, Series II R 184C, FGIC, 7.553%, 2016 (z)(v) 3,300,000 4,240,698 Los Angeles, CA, RITES, 6.535%, 2014 (v)(z) 5,405,000 6,622,747 State of California, 10%, 2007 1,055,000 1,118,279 State of California, 5.125%, 2025 2,000,000 2,109,040 State of California, 5.25%, 2029 2,000,000 2,110,920 State of California, AMBAC, 7.2%, 2008 1,600,000 1,688,896 State of California, AMBAC, 6.3%, 2010 3,000,000 3,303,090 State of California, AMBAC, 7%, 2010 2,000,000 2,257,860 State of California, RITES, "B", 7.525%, 2017 (z)(v) 1,250,000 1,441,425 State of California, Various Purposes, "91", AMBAC, 5%, 2028 3,000,000 3,158,610 - --------------------------------------------------------------------------------------------------------------------------------- $ 29,986,355 - --------------------------------------------------------------------------------------------------------------------------------- General Obligations - Schools - 17.5% - --------------------------------------------------------------------------------------------------------------------------------- Antelope Valley, CA (Union High School), "A", MBIA, 5%, 2027 $1,500,000 $ 1,575,930 Butte Glenn Community College District, "A", MBIA, 5%, 2026 1,885,000 1,982,718 Campbell, CA, Union High School District, Election of 2002, "B", FGIC, 5.5%, 2033 2,270,000 2,493,754 Campbell, CA, Union High School District, FSA, 5%, 2021 1,280,000 1,342,669 Capistrano, CA, Union High School District, "A", FGIC, 5.875%, 2020 1,185,000 1,295,691 Chaffey, CA, Union High School District, "C", FSA, 5%, 2027 1,000,000 1,051,970 Coast Community College District CA, Capital Appreciation, Election of 2002, "C", FSA, 0%, 2033 5,000,000 1,232,100 Colton, CA, Joint Union School District, "A", FGIC, 5.375%, 2026 1,200,000 1,312,512 Colton, CA, Joint Union School District, Election of 2001, "C", FGIC, 0%, 2032 1,000,000 273,950 Colton, CA, Joint Union School District, Election of 2001, "C", FGIC, 0%, 2033 3,000,000 777,750 Coronad, CA, Union School District, "A", 5.7%, 2020 1,285,000 1,397,527 Escondido, CA, Union School District, "A", FSA, 5%, 2026 1,000,000 1,047,740 Folsom Cordova, CA, Union School District, Facilities Improvement, "A", MBIA, 0%, 2025 1,505,000 645,178 Gilroy Cauni School District, Election of 2002, "N", FGIC, 5%, 2027 1,190,000 1,264,851 Glendale, CA, Union School District, "B", FSA, 5.5%, 2018 4,275,000 4,474,600 Hillsborough, CA, School District, Capital Appreciation, Election of 2002, "B", 0%, 2023 2,285,000 1,083,867 Hillsborough, CA, School District, Capital Appreciation, Election of 2002, "B", 0%, 2024 2,640,000 1,191,934 Inglewood, CA, Union School District, "A", FGIC, 6%, 2019 1,695,000 1,828,634 Little Lake, CA, City School District, "A", FSA, 6.125%, 2010 (c) 1,035,000 1,140,829 Live Oak, CA, School District, Santa Cruz County, Election of 2004, "A", MBIA, 5%, 2033 1,410,000 1,487,057 Los Angeles, CA, Union School District, Election of 1997, "E", MBIA, 5.125%, 2027 5,000,000 5,275,200 Los Angeles, CA, Union School District, RITES, FSA, 6.535%, 2011 (v)(z) 5,000,000 5,829,900 Moreland, CA, School District, Election of 2002, "B", FGIC, 0%, 2028 1,440,000 537,120 Moreno Valley, CA, Union School District, Election of 2004, "A", FSA, 5%, 2025 1,075,000 1,139,145 Moreno Valley, CA, Union School District, Election of 2004, "A", FSA, 5%, 2026 1,715,000 1,814,985 Morgan Hill, CA, Union School District, FGIC, 5.5%, 2010 (c) 2,545,000 2,753,614 Mount Diablo, CA, Unified School District, Election of 2002, "N", MBIA, 5%, 2028 2,000,000 2,119,800 Natomas Unified School District CA, Election of 2006, FGIC, 4.5%, 2029 2,065,000 2,074,148 Natomas Union School District, Election of 2002 "B", FGIC, 5%, 2028 1,430,000 1,509,308 Oceanside, CA, Union School District, Election of 2000, "C", MBIA, 5.25%, 2032 1,940,000 2,054,887 Palos Verdes Peninsula, CA, Capital Appreciation, "N", FSA, 0%, 2029 4,405,000 1,554,084 Perris, CA, Union School District, "A", FGIC, 0%, 2027 3,100,000 1,210,147 San Gabriel, CA, Union School District, "A", FSA, 5%, 2024 2,000,000 2,099,720 San Ysidro, CA, School District, AMBAC, 6.125%, 2021 960,000 1,109,184 Santa Clara, CA, Union School District, FGIC, 5.5%, 2019 2,210,000 2,374,159 Santa Maria, CA, Joint Union High School District, "A", FSA, 5.375%, 2015 (c) 1,120,000 1,285,458 Santa Maria, CA, Joint Union High School District, "A", FSA, 5.375%, 2015 (c) 1,210,000 1,388,753 Sausalito Marin City, CA, School District, Capital Appreciation, Election of 2004, "B", MBIA, 0%, 2039 1,315,000 248,233 Sausalito Marin City, CA, School District, Capital Appreciation, Election of 2004, "B", MBIA, 0%, 2040 1,400,000 250,278 Tehachapi, CA, Union School District, "A", FGIC, 5.625%, 2009 (c) 1,100,000 1,174,723 Walnut Valley, CA, Union School District, Election of 2000, "E", FSA, 0%, 2028 1,535,000 572,555 Washington, CA, Union School District, Election of 1999, "A", FGIC, 5.625%, 2021 1,000,000 1,101,530 - --------------------------------------------------------------------------------------------------------------------------------- $ 68,378,192 - --------------------------------------------------------------------------------------------------------------------------------- Healthcare Revenue - Hospitals - 10.9% - --------------------------------------------------------------------------------------------------------------------------------- Abag Finance Authority Rev. (San Diego Hospital), "C", 5.375%, 2020 $2,000,000 $ 2,097,580 California Health Facilities Financing Authority Rev., Catholic Healthcare West, "G", 5.25%, 2023 2,000,000 2,110,380 California Health Facilities Financing Authority Rev., Cedars Sinai Medical Center, 5%, 2027 1,000,000 1,043,080 California Health Facilities Financing Authority Rev., Health Facilities (Adventist Health Systems), "A", 5%, 2033 1,750,000 1,792,298 California Statewide Communities Development Authority Rev. (Henry Mayo Newhall Memorial Hospital), "A", CHFC, 5%, 2018 2,000,000 2,079,200 California Statewide Communities Development Authority Rev. (Kaiser Permanente), "A", 5.5%, 2032 2,000,000 2,121,560 California Statewide Communities Development Authority Rev. (Los Angeles Children's Hospital), 5.125%, 2019 4,000,000 4,144,040 California Statewide Communities Development Authority Rev., CHFC, ETM, 0%, 2007 (c) 3,645,000 3,540,133 California Statewide Communities Development Authority Rev., CHFC, ETM, 0%, 2008 (c) 6,345,000 5,928,007 California Statewide Communities Development Authority Rev., Health Facilities (Memorial Health Services), "A", 6%, 2023 1,500,000 1,659,195 California Statewide Communities Development, "B", 5.625%, 2042 4,000,000 4,269,760 California Valley Health Systems, COP, 6.875%, 2023 470,000 470,738 Central California Joint Powers Health Financing (Community Hospitals of Central California), 5.625%, 2021 1,000,000 1,040,670 Kaweah Delta Health Care District Rev., 6%, 2034 2,000,000 2,179,720 Rancho Mirage, CA, Joint Powers (Eisenhower Medical Center), 5.625%, 2029 3,000,000 3,290,220 Tahoe Forest California Hospital District, "A", 5.85%, 2009 (c) 795,000 857,408 Tahoe Forest California Hospital District, "A", 5.85%, 2022 205,000 215,840 Turlock, CA, Health Facilities Rev. (Emanuel Medical Center), 5%, 2024 500,000 509,260 Washington Township, CA, Health Care Rev., 5% to 2018 1,000,000 1,028,060 West Contra Costa California Healthcare District, AMBAC, 5.5%, 2029 2,000,000 2,171,560 - --------------------------------------------------------------------------------------------------------------------------------- $ 42,548,709 - --------------------------------------------------------------------------------------------------------------------------------- Healthcare Revenue - Long Term Care - 0.7% - --------------------------------------------------------------------------------------------------------------------------------- California Health Facilities Financing Authority Rev. (Paradise Valley Estates), 5.125%, 2022 $1,000,000 $ 1,049,140 La Verne, CA, COP (Brethren Hillcrest Homes), "B", 6.625%, 2025 1,000,000 1,082,020 Millbrae, CA, Residential Facilities Rev. (Magnolia of Millbrae), "A", 7.375%, 2027 460,000 478,759 - --------------------------------------------------------------------------------------------------------------------------------- $ 2,609,919 - --------------------------------------------------------------------------------------------------------------------------------- Human Services - 0.5% - --------------------------------------------------------------------------------------------------------------------------------- California Statewide Communities Development Authority (Prides Industries), 7.125%, 2009 (c) $1,640,000 $ 1,794,193 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Environmental Services - 1.4% - --------------------------------------------------------------------------------------------------------------------------------- California Pollution Control Financing Authority, Solid Waste Disposal Rev. (Browning Ferris, Inc.), "A", 5.8%, 2016 $2,000,000 $ 2,003,020 California Pollution Control Financing Authority, Solid Waste Disposal Rev. (Waste Management, Inc.), "A", 5.125%, 2031 2,250,000 2,348,145 California Pollution Control Financing Authority, Solid Waste Disposal Rev. (Waste Management, Inc.), "A-2", 5.4%, 2025 1,000,000 1,063,340 - --------------------------------------------------------------------------------------------------------------------------------- $ 5,414,505 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Other - 0.3% - --------------------------------------------------------------------------------------------------------------------------------- Virgin Islands Public Finance Authority, Refinery Facilities Rev. (Hovensa Refinery), 5.875%, 2022 $ 960,000 $ 1,046,285 - --------------------------------------------------------------------------------------------------------------------------------- Miscellaneous Revenue - Other - 0.9% - --------------------------------------------------------------------------------------------------------------------------------- San Diego County, CA, COP (Burnham Institute for Medical Research), 5%, 2034 $1,000,000 $ 1,014,540 San Diego County, CA, COP (Burnham Institute), 6.25%, 2009 (c) 2,300,000 2,492,832 - --------------------------------------------------------------------------------------------------------------------------------- $ 3,507,372 - --------------------------------------------------------------------------------------------------------------------------------- Multi-Family Housing Revenue - 2.4% - --------------------------------------------------------------------------------------------------------------------------------- California Statewide Communities Development Authority Rev. (Irvine Apartments), 5.25%, 2025 $6,000,000 $ 6,156,060 San Bernardino County, CA (Equity Residential/Redlands), "A", 5.2%, 2029 3,000,000 3,067,860 - --------------------------------------------------------------------------------------------------------------------------------- $ 9,223,920 - --------------------------------------------------------------------------------------------------------------------------------- Parking - 0.3% - --------------------------------------------------------------------------------------------------------------------------------- San Francisco, CA, Union Square, MBIA, 6%, 2020 $1,000,000 $ 1,097,090 - --------------------------------------------------------------------------------------------------------------------------------- Sales & Excise Tax Revenue - 0.1% - --------------------------------------------------------------------------------------------------------------------------------- Contra Costa, CA, Transportation & Sales Tax Rev., "A", ETM, 6.875%, 2007 (c) $ 480,000 $ 486,734 - --------------------------------------------------------------------------------------------------------------------------------- Single Family Housing - Local - 1.3% - --------------------------------------------------------------------------------------------------------------------------------- California Housing Finance Agency Rev., "A", 4.95%, 2036 $1,000,000 $ 1,012,920 California Rural Home Mortgage Finance Authority Rev., GNMA, 7.3%, 2031 30,000 30,379 California Rural Home Mortgage Finance Authority Rev., Mortgage Backed Securities Program, "B4", GNMA, 6.35%, 2029 35,000 35,093 Pomona, CA, Single Family Mortgage Rev., GNMA, ETM, 7.375%, 2010 (c) 1,145,000 1,230,520 Pomona, CA, Single Family Mortgage Rev., GNMA, ETM, 7.5%, 2023 (c) 2,000,000 2,641,760 - --------------------------------------------------------------------------------------------------------------------------------- $ 4,950,672 - --------------------------------------------------------------------------------------------------------------------------------- Single Family Housing - State - 2.1% - --------------------------------------------------------------------------------------------------------------------------------- California Housing Finance Agency Rev., Home Mortgage, "I", 4.75%, 2031 $3,000,000 $ 3,020,940 California Housing Finance Agency Rev., Home Mortgage, "N", FGIC, 5.05%, 2026 2,500,000 2,582,450 California Housing Finance Agency Rev., Home Mortgage, FSA, 0%, 2019 2,505,000 1,149,570 California Housing Finance Agency Rev., Home Mortgage, MBIA, 0%, 2028 5,020,000 1,646,309 - --------------------------------------------------------------------------------------------------------------------------------- $ 8,399,269 - --------------------------------------------------------------------------------------------------------------------------------- Solid Waste Revenue - 0.8% - --------------------------------------------------------------------------------------------------------------------------------- California Pollution Control Financing Authority, Solid Waste Disposal Rev. (West County Resource Recovery), "A", 5.125%, 2014 $1,000,000 $ 1,016,100 South Bayside Waste Management Authority, California Solid Waste System Rev., AMBAC, 5.75%, 2020 2,100,000 2,245,761 - --------------------------------------------------------------------------------------------------------------------------------- $ 3,261,861 - --------------------------------------------------------------------------------------------------------------------------------- State & Agency - Other - 2.8% - --------------------------------------------------------------------------------------------------------------------------------- Grossmont, CA, Union High School District, MBIA, ETM, 0%, 2006 (c) $6,000,000 $ 5,976,840 Pasadena CA, COP, Old Pasadena Parking Facilities Project, 6.25%, 2018 2,995,000 3,356,616 Sacramento County, CA, COP, Capital Projects, AMBAC, 5.75%, 2018 1,500,000 1,622,385 - --------------------------------------------------------------------------------------------------------------------------------- $ 10,955,841 - --------------------------------------------------------------------------------------------------------------------------------- State & Local Agencies - 14.7% - --------------------------------------------------------------------------------------------------------------------------------- Banning, CA, COP, Water Systems Improvement Project, AMBAC, ETM, 8%, 2019 (c) $ 925,000 $ 1,150,904 California Department of Water Resources Power Supply Rev., "C", 5.25%, 2028 2,500,000 2,643,275 California Public Works Board Lease Rev., Department of Corrections State Prison, "A", 7.4%, 2010 5,000,000 5,675,000 California Public Works Board, Department of Justice, "D", 5.25%, 2020 1,565,000 1,655,394 Fortuna & Susanville, CA, COP, "B", 7.375%, 2017 625,000 634,256 Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., "A", FSA, 0% to 2010, 4.55% to 2022 3,000,000 2,549,940 Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Enhanced, "A", 5%, 2045 5,500,000 5,644,485 Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Enhanced, "A", FGIC, 5%, 2035 3,000,000 3,139,260 Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Enhanced, "B", 5.5%, 2013 (c) 7,000,000 7,772,100 Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Enhanced, "B", 5.625%, 2013 (c) 5,000,000 5,588,200 Los Angeles, CA, COP, Antelope Valley Courthouse, "A", AMBAC, 5.25%, 2027 3,000,000 3,158,070 Los Angeles, CA, COP, Real Property Program, AMBAC, 5.3%, 2027 3,000,000 3,215,010 Pomona, CA, Public Financing Authority Rev., "P", 6.25%, 2010 4,020,000 4,281,943 Sacramento, CA, City Financing Authority Rev., Capital Improvement, 5.5%, 2010 (c) 1,635,000 1,764,198 Sacramento, CA, City Financing Authority Rev., City Hall & Redevelopment Projects, "A", FSA, 5%, 2032 2,000,000 2,085,920 Salinas, CA, COP, Capital Improvement Projects, "A", 5.7%, 2007 (c) 2,200,000 2,291,036 San Francisco, CA, City & County, COP (San Bruno Jail No 3), AMBAC, 5.25%, 2033 3,930,000 4,115,103 - --------------------------------------------------------------------------------------------------------------------------------- $ 57,364,094 - --------------------------------------------------------------------------------------------------------------------------------- Tax - Other - 2.3% - --------------------------------------------------------------------------------------------------------------------------------- Irvine, CA, School District Special Tax Rev., Community Facilities District No. 86-1, AMBAC, 5.8%, 2020 $3,500,000 $ 3,654,210 Santa Cruz County, CA, Redevelopment Agency Tax Allocation (Oak/Soquel Community), 5.6%, 2017 1,455,000 1,509,301 Virgin Islands Public Finance Authority Rev., "A", 5.5%, 2022 2,000,000 2,070,300 Virgin Islands Public Finance Authority Rev., "E", 5.875%, 2018 1,600,000 1,677,632 - --------------------------------------------------------------------------------------------------------------------------------- $ 8,911,443 - --------------------------------------------------------------------------------------------------------------------------------- Tax Assessment - 5.6% - --------------------------------------------------------------------------------------------------------------------------------- Duarte, CA, Redevelopment Agency Tax Allocation, Davis Addition Project Area, 6.7%, 2014 $ 555,000 $ 579,581 Fontana, CA, Redevelopment Agency Tax Allocation, Jurupa Hills Redevelopment Project, "A", 5.5%, 2027 3,350,000 3,449,864 Huntington Park, CA, Public Financing Rev. Wastewater Systems Project, "A", 6.2%, 2025 2,000,000 2,053,080 La Mirada, CA, Redevelopment Agency, Special Tax Rev., Community Facilities District No. 89-1, 5.7%, 2020 1,500,000 1,537,560 Modesto, CA, Irrigation District, COP, Refunding & Capital Improvements, "B", 5.3%, 2022 1,655,000 1,656,010 Modesto, CA, Public Financing Authority (John Thurman Field Renovation), 6.125%, 2016 1,255,000 1,282,259 Norco, CA, Special Tax Community Facilities (District No. 2001), "N", AMBAC, 4.75%, 2026 1,700,000 1,747,311 Orange County, CA, Community Facilities District, Special Tax (Rancho Santa Margarita), "A", 5.55%, 2017 1,000,000 1,035,870 Poway, CA, Community Facilities District, Special Tax (Parkway Business Center), 6.5%, 2010 715,000 758,572 Poway, CA, Community Facilities District, Special Tax (Parkway Business Center), 6.75%, 2015 775,000 824,957 Riverside County, CA, Public Financing Authority, Tax Allocation Rev., "A", 5.25%, 2016 572,500 584,626 Riverside County, CA, Public Financing Authority, Tax Allocation Rev., XLCA, 5%, 2037 3,000,000 3,118,110 Riverside County, CA, Redevelopment Agency, Tax Allocation, "A", XLCA, 5%, 2037 2,000,000 2,078,740 San Diego, CA, Redevelopment Agency, Tax Allocation (Centre City), "B", AMBAC, 5.3%, 2020 1,250,000 1,343,350 - --------------------------------------------------------------------------------------------------------------------------------- $ 22,049,890 - --------------------------------------------------------------------------------------------------------------------------------- Tobacco - 2.4% - --------------------------------------------------------------------------------------------------------------------------------- California County, CA, Tobacco Securitization Agency, Capital Appreciation Asset Backed (Gold Country), 0%, 2033 $4,000,000 $ 872,680 California County, CA, Tobacco Securitization Corp., Tobacco Settlement, L.A. County, "A", 0%, 2041 2,500,000 2,073,950 Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, "A", 0%, 2050 2,000,000 133,340 Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, "B", 0%, 2055 2,000,000 70,340 Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement, "A-1", 6.25%, 2033 2,935,000 3,229,116 Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement, "A-1", 6.75%, 2039 2,645,000 2,985,491 - --------------------------------------------------------------------------------------------------------------------------------- $ 9,364,917 - --------------------------------------------------------------------------------------------------------------------------------- Toll Roads - 0.7% - --------------------------------------------------------------------------------------------------------------------------------- Foothill/Eastern Corridor Agency, California Toll Road Rev., Capital Appreciation, "A", 7.1%, 2010 (c) $2,500,000 $ 2,823,000 - --------------------------------------------------------------------------------------------------------------------------------- Transportation - Special Tax - 0.7% - --------------------------------------------------------------------------------------------------------------------------------- Alameda Corridor Transportation Authority, California Rev., Capital Appreciation, "A", AMBAC, 0%, 2030 $8,000,000 $ 2,674,160 - --------------------------------------------------------------------------------------------------------------------------------- Universities - Colleges - 7.3% - --------------------------------------------------------------------------------------------------------------------------------- Cabrillo, CA, Community College District Capital Appreciation, "A", MBIA, 0%, 2028 $1,000,000 $ 373,000 California Educational Facilities Authority Rev. (Dominican University), 5%, 2036 1,150,000 1,181,280 California Educational Facilities Authority Rev. (Fresno Pacific University), "A", 6.75%, 2019 2,000,000 2,182,320 California Educational Facilities Authority Rev. (L.A. College of Chiropractic), 5.6%, 2017 2,100,000 2,069,949 California Educational Facilities Authority Rev. (Lutheran University), "C", 5%, 2029 2,500,000 2,559,525 California Educational Facilities Authority Rev. (Pomona College), "B", 5.875%, 2009 (c) 2,000,000 2,145,560 California Educational Facilities Authority Rev. (Santa Clara University), "A", MBIA, 5%, 2027 1,340,000 1,394,484 California Educational Facilities Authority Rev. (University of La Verne), "A", 5%, 2029 1,500,000 1,538,055 California Educational Facilities Authority Rev., Pooled College & University Projects, "B", 6.3%, 2007 (c) 1,000,000 1,033,340 California Educational Facilities Authority Rev., Pooled College & University Projects, "B", 6.625%, 2020 1,000,000 1,109,390 California Statewide Communities, Notre Dame De Namur University, 6.625%, 2033 1,000,000 1,058,500 Foothill-De Anza, CA, Community College District, Election of 1999, "B", FGIC, 0%, 2025 1,500,000 647,835 Long Beach, CA, Industrial Development Rev. (CSU Foundation), "A", 5.25%, 2023 1,450,000 1,476,419 San Mateo County, CA (Community College District, 2005 Election), "A", MBIA, 0%, 2026 3,000,000 1,229,760 Santa Monica, CA (Community College District, 2002 Election), "C", MBIA, 0%, 2027 2,000,000 730,420 University of California Rev., RITES, MBIA, 6.285%, 2016 (v)(z) 5,705,000 5,988,881 University of California, COP, San Diego Campus Projects, "A", 5.25%, 2032 1,840,000 1,925,339 - --------------------------------------------------------------------------------------------------------------------------------- $ 28,644,057 - --------------------------------------------------------------------------------------------------------------------------------- Universities - Secondary Schools - 1.1% - --------------------------------------------------------------------------------------------------------------------------------- California Statewide Communities Development Authority Rev., Aspire Public Schools (Oakland Project), "A", 7.25%, 2031 $ 960,000 $ 990,144 California Statewide Communities, Development Authority Rev. (Escondido Charter High School), 7.5%, 2011 (c) 1,000,000 1,190,060 Los Angeles, CA, COP, 5.7%, 2018 1,900,000 1,983,771 - --------------------------------------------------------------------------------------------------------------------------------- $ 4,163,975 - --------------------------------------------------------------------------------------------------------------------------------- Utilities - Investor Owned - 1.6% - --------------------------------------------------------------------------------------------------------------------------------- California Pollution Control Financing Authority, Pollution Control Rev. (Pacific Gas & Electric Co.), MBIA, 5.35%, 2016 $3,500,000 $ 3,772,125 Chula Vista, CA, Industrial Development Rev. (San Diego Gas), "B", 5%, 2027 2,500,000 2,606,325 - --------------------------------------------------------------------------------------------------------------------------------- $ 6,378,450 - --------------------------------------------------------------------------------------------------------------------------------- Utilities - Municipal Owned - 1.5% - --------------------------------------------------------------------------------------------------------------------------------- Glendale, CA, Electric Works Rev., MBIA, 5.75%, 2010 (c) $1,420,000 $ 1,534,835 Glendale, CA, Electric Works Rev., MBIA, 5.75%, 2010 (c) 1,160,000 1,253,809 Northern California Power Agency Public Power Rev., 5.85%, 2010 880,000 932,853 Virgin Islands Water & Power Authority Rev., 5.5%, 2017 800,000 819,184 Virgin Islands Water & Power Authority Rev., 5.3%, 2018 250,000 251,410 Virgin Islands Water & Power Authority Rev., "A", 5.125%, 2013 1,000,000 1,007,190 - --------------------------------------------------------------------------------------------------------------------------------- $ 5,799,281 - --------------------------------------------------------------------------------------------------------------------------------- Water & Sewer Utility Revenue - 5.7% - --------------------------------------------------------------------------------------------------------------------------------- California Department of Water Resources, Central Valley Project Rev., "X", FGIC, 5%, 2029 $2,000,000 $ 2,087,020 California Department of Water Resources, Water Systems Rev., 7%, 2012 1,090,000 1,289,699 California Department of Water Resources, Water Systems Rev., ETM, 7%, 2012 (c) 405,000 481,905 Castaic Lake Water Agency, California Rev., Water Systems Improvement Project, AMBAC, 5.125%, 2030 1,725,000 1,802,504 Culver City, CA, Wastewater Facilities Rev., "A", FGIC, 5.6%, 2019 1,000,000 1,075,060 El Monte, CA, Water Authority Rev., Water Systems Project, AMBAC, 6%, 2010 (c) 1,065,000 1,182,512 Livermore Amador Valley Water Management Rev., "A", AMBAC, 5%, 2031 4,875,000 5,026,271 Southern California Metropolitan Water District Rev., RITES, 7.545%, 2013 (v)(z) 5,000,000 6,534,700 West Sacramento, CA, Financing Authority Rev., Water Systems Improvement Project, FGIC, 5%, 2032 2,750,000 2,867,315 - --------------------------------------------------------------------------------------------------------------------------------- $ 22,346,986 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $356,908,594) $379,863,386 - --------------------------------------------------------------------------------------------------------------------------------- Floating Rate Demand Notes - 1.0% - --------------------------------------------------------------------------------------------------------------------------------- Bay Area Toll Authority, California Toll Bridge Rev., "A", 3.58%, due 10/05/06 $1,000,000 $ 1,000,000 California Department of Water Resources, Power Supply Rev., "C-2", 3.73%, due 10/05/06 800,000 800,000 California Department of Water Resources, Power Supply Rev., "C-3", 3.73%, due 10/05/06 1,100,000 1,100,000 California Health Facilities Financing Authority Rev., "A", 3.79%, due 10/02/06 900,000 900,000 Triborough Bridge & Tunnel Authority, NY, Rev., "F", 3.74%, due 10/05/06 300,000 300,000 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL FLOATING RATE DEMAND NOTES (IDENTIFIED COST, $4,100,000) $ 4,100,000 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL INVESTMENTS (IDENTIFIED COST, $361,008,594) (k) $383,963,386 - --------------------------------------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - 1.7% 6,586,198 - --------------------------------------------------------------------------------------------------------------------------------- NET ASSETS - 100.0% $390,549,584 - --------------------------------------------------------------------------------------------------------------------------------- SWAP AGREEMENTS AT 9/30/06 UNREALIZED NOTIONAL CASH FLOWS CASH FLOWS APPRECIATION EXPIRATION AMOUNT COUNTERPARTY TO RECEIVE TO PAY (DEPRECIATION) - --------------------------------------------------------------------------------------------------------------------------------- INTEREST RATE SWAPS 12/01/07 USD 9,000,000 Merrill Lynch 7-Day BMA 2.795% (fixed rate) $ 77,468 1/04/19 USD 3,000,000 Citigroup 7-Day BMA 4.307% (fixed rate) (130,269) 11/09/26 USD 3,750,000 Goldman Sachs 5.787% (fixed rate) 3-Month LIBOR 230,463 - --------------------------------------------------------------------------------------------------------------------------------- $ 177,662 - --------------------------------------------------------------------------------------------------------------------------------- At September 30, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts. SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS PORTFOLIO OF INVESTMENTS 9/30/06 (unaudited) MFS(R) FLORIDA MUNICIPAL BOND FUND The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Municipal Bonds - 96.7% - --------------------------------------------------------------------------------------------------------------------------------- ISSUER SHARES/PAR VALUE ($) - --------------------------------------------------------------------------------------------------------------------------------- Airport & Port Revenue - 4.5% - --------------------------------------------------------------------------------------------------------------------------------- Greater Orlando Aviation Authority Rev., "A", FGIC, 5.25%, 2018 $1,000,000 $ 1,044,370 Lee County, FL, Airport Rev., "A", FSA, 5.875%, 2018 1,000,000 1,084,010 Miami-Dade County, FL, Aviation Rev., "A", CIFG, 5%, 2038 500,000 520,945 Miami-Dade County, FL, Aviation Rev., "C", MBIA, 5.25%, 2018 500,000 517,250 Pensacola, FL, Airport Rev., "B", MBIA, 5.625%, 2014 500,000 517,585 - --------------------------------------------------------------------------------------------------------------------------------- $ 3,684,160 - --------------------------------------------------------------------------------------------------------------------------------- General Obligations - General Purpose - 7.2% - --------------------------------------------------------------------------------------------------------------------------------- Commonwealth of Puerto Rico, RITES, MBIA, 7.594%, 2019 (z)(v) $1,000,000 $ 1,149,880 Miami-Dade County, FL, Educational Facilities Authority Rev. (University of Miami), "A", AMBAC, 5.5%, 2018 1,400,000 1,492,722 State of Florida, RITES, 6.025%, 2017 (z)(v) 3,000,000 3,261,900 - --------------------------------------------------------------------------------------------------------------------------------- $ 5,904,502 - --------------------------------------------------------------------------------------------------------------------------------- General Obligations - Schools - 8.3% - --------------------------------------------------------------------------------------------------------------------------------- Florida Board of Education, Capital Outlay, 9.125%, 2014 $2,600,000 $ 3,153,800 Florida Board of Education, Capital Outlay, ETM, 9.125%, 2014 (c) 400,000 533,628 Florida Board of Education, Public Education, "J", 5%, 2032 1,000,000 1,049,200 Osceola County, FL, School Board Certificate, "A", AMBAC, 5.25%, 2027 1,950,000 2,090,888 - --------------------------------------------------------------------------------------------------------------------------------- $ 6,827,516 - --------------------------------------------------------------------------------------------------------------------------------- Healthcare Revenue - Hospitals - 17.1% - --------------------------------------------------------------------------------------------------------------------------------- Birmingham, AL, Baptist Medical Center, Special Care Facilities Rev. (Baptist Health Systems, Inc.), "A", 5%, 2030 $ 500,000 $ 511,365 Brevard County, FL, Health Facilities Rev. (Health First Inc.), 5%, 2034 500,000 518,355 Citrus County, FL, Hospital Development Authority Rev. (Citrus Memorial Hospital), 6.25%, 2023 465,000 503,204 Coral Gables, FL, Health Facilities Authority, Hospital Rev. (Baptist Health South Florida), FSA, 5%, 2029 535,000 561,921 Denver, CO, Health & Hospital Authority Rev., "A", 6%, 2023 250,000 266,955 Highlands County, FL, Health Facilities Authority Rev. (Adventist Health Systems), 5.25%, 2013 500,000 516,715 Hillsborough County, FL, Industrial Development Authority Rev. (University Community Hospital), MBIA, 6.5%, 2019 1,000,000 1,219,240 Indiana Health Facilities Financing Authority, Hospital Rev. (Munster Medical Research Foundation, Inc.), 6.375%, 2031 500,000 533,570 Jacksonville, FL, Health Facilities Rev. (Ascencion Health), "A", 5.25%, 2032 1,000,000 1,056,390 Lakeland, FL, Hospital Systems Rev. (Lakeland Regional Health Systems), 5.5%, 2032 1,000,000 1,070,460 Leesburg, FL, Hospital Rev. (Leesburg Regional Medical Center), 5.5%, 2032 750,000 782,130 Marion County, FL, Hospital District Rev., Refunding & Improvement, Health Systems (Munroe Regional Health System), 5.5%, 2014 500,000 523,945 Marshall County, AL, Health Care Authority Rev., "A", 6.25%, 2022 500,000 552,005 Martin County, FL, Health Facilities Authority Rev. (Martin Memorial Medical Center), "A", 5.75%, 202 500,000 536,310 Miami Beach, FL, Health Facilities Authority Rev. (Mount Sinai Medical Center), "A", 6.7%, 2019 250,000 276,228 New Hampshire Health & Educational Facilities Authority Rev. (Exeter Hospital), 6%, 2024 500,000 549,900 Orange County, FL, Health Facilities Authority Hospital Rev. (Orlando Regional Healthcare), 5.75%, 2012(c) 1,000,000 1,115,420 Rhode Island Health & Education Building Rev., Hospital Financing (Lifespan Obligated Group), 6.5%, 2012(c) 500,000 574,870 South Dakota Health & Education Facilities Authority Rev. (Prairie Lakes Health Care System), 5.625%, 2032 500,000 523,055 Tallahassee, FL, Health Facilities Rev. (Tallahassee Memorial Healthcare), 6.25%, 2020 300,000 318,402 Tallahassee, FL, Health Facilities Rev. (Tallahassee Memorial Regional Medical Center), MBIA, 6.625%, 2013 1,000,000 1,004,550 Wisconsin Health & Educational Facilities Authority Rev. (Marshfield Clinic), "A", 5.375%, 2034 500,000 527,235 - --------------------------------------------------------------------------------------------------------------------------------- $ 14,042,225 - --------------------------------------------------------------------------------------------------------------------------------- Healthcare Revenue - Long Term Care - 0.3% - --------------------------------------------------------------------------------------------------------------------------------- Orange County, FL, Health Facilities Authority Rev. (Orlando Lutheran Towers), 5.7%, 2026 $ 250,000 $ 253,843 - --------------------------------------------------------------------------------------------------------------------------------- Human Services - 0.4% - --------------------------------------------------------------------------------------------------------------------------------- Orange County, FL, Health Facilities Authority Rev. (GF/Orlando Healthcare Facilities), 8.875%, 2021 $ 300,000 $ 333,762 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Chemicals - 1.0% - --------------------------------------------------------------------------------------------------------------------------------- Brazos River, TX, Brazoria County Environmental Rev. (Dow Chemical, Co.), "A-7", 6.625%, 2033 $ 500,000 $ 561,080 Red River Authority, TX, Pollution Control Rev. (Celanese Project), "B", 6.7%, 2030 200,000 219,524 - --------------------------------------------------------------------------------------------------------------------------------- $ 780,604 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Environmental Services - 1.0% - --------------------------------------------------------------------------------------------------------------------------------- California Pollution Control Financing Authority, Solid Waste Disposal Rev. (Waste Management, Inc.), "B", 5%, 2027 $ 500,000 $ 515,925 Nevada Department of Business & Industry Rev. (Republic Services, Inc.), 5.625%, 2026 300,000 328,056 - --------------------------------------------------------------------------------------------------------------------------------- $ 843,981 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Other - 1.0% - --------------------------------------------------------------------------------------------------------------------------------- Madison County, FL, Rev. (Twin Oaks Project), "A", 6%, 2025 $ 140,000 $ 145,191 Park Creek Metropolitan District, CO. (Custodial Receipts), "CR-2", 7.875%, 2032 (n) 160,000 177,984 Tooele County, UT, Hazardous Waste Treatment Rev. (Union Pacific Corp.), 5.7%, 2026 500,000 522,870 - --------------------------------------------------------------------------------------------------------------------------------- $ 846,045 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Paper - 0.7% - --------------------------------------------------------------------------------------------------------------------------------- Delta County, MI, Economic Development Corp., Environmental Improvements Rev. (Mead Westvaco Escanaba), "A", 6.25%, 2012(c) $ 500,000 $ 566,170 - --------------------------------------------------------------------------------------------------------------------------------- Miscellaneous Revenue - Entertainment & Tourism - 1.3% - --------------------------------------------------------------------------------------------------------------------------------- Palm Beach County, FL, Industrial Development Rev. (South Florida Fair Project), MBIA, 5.5%, 2020 $1,000,000 $ 1,059,250 - --------------------------------------------------------------------------------------------------------------------------------- Miscellaneous Revenue - Other - 0.9% - --------------------------------------------------------------------------------------------------------------------------------- Summit County, OH, Port Authority Building Rev. (Seville Project), "A", 5.1%, 2025 $ 200,000 $ 206,318 Tamarac, FL, Capital Improvement Rev., MBIA, 5%, 2030 500,000 525,870 - --------------------------------------------------------------------------------------------------------------------------------- $ 732,188 - --------------------------------------------------------------------------------------------------------------------------------- Multi-Family Housing Revenue - 3.7% - --------------------------------------------------------------------------------------------------------------------------------- Bay County, FL, Housing Finance Authority, Multi-Family Rev. (Andrews Place II Apartments), FSA, 5%, 2035 $ 500,000 $ 511,345 Collier County, FL, Housing Finance Authority Rev. (Goodlette Arms Housing Project), "A", FNMA, 4 9%, 2032 500,000 522,245 Florida Housing Finance Corp., Housing Rev. (Augustine Club Apartments), "D-1", MBIA, 5.5%, 2020 500,000 526,270 Florida Housing Finance Corp., Housing Rev. (Crossing at University Apartments), "Q-1" AMBAC, 5.1%, 2018 1,085,000 1,110,205 Palm Beach County, FL, Housing Finance Authority Rev. (Westlake Apartments Project, Phase II), FSA, 4.3%, 2012 130,000 132,847 Tampa, FL, Housing Finance Authority, Multi-Family Rev. (Meridian River Development Corp.), 4.75%, 2026 200,000 203,422 - --------------------------------------------------------------------------------------------------------------------------------- $ 3,006,334 - --------------------------------------------------------------------------------------------------------------------------------- Sales & Excise Tax Revenue - 4.8% - --------------------------------------------------------------------------------------------------------------------------------- Escambia County, FL, Sales Tax Rev., AMBAC, 5%, 2022 $1,160,000 $ 1,230,134 Miami-Dade County, FL, Special Obligations, Capital Appreciation, "A", MBIA, 0%, 2032 2,000,000 545,980 Pasco County, FL, Sales Tax Rev. (Half Central), AMBAC, 5%, 2023 1,000,000 1,058,470 Volusia County, FL, Tourist Development Tax Rev., FSA, 5%, 2034 815,000 855,579 Wyandotte County-Kansas City, KS, Unified Government Rev. (Sales Tax Second Lien Area B), 5%, 2020 250,000 259,383 - --------------------------------------------------------------------------------------------------------------------------------- $ 3,949,546 - --------------------------------------------------------------------------------------------------------------------------------- Single Family Housing - Local - 3.3% - --------------------------------------------------------------------------------------------------------------------------------- Brevard County, FL, Housing Finance Authority Rev., "B", GNMA, 6.5%, 2022 $ 34,000 $ 34,149 Lee County, FL, Housing Finance Authority Rev. (Multi-County Program), "A-1", GNMA, 7.2%, 2033 30,000 30,308 Lee County, FL, Housing Finance Authority Rev. (Multi-County Program), "A-4", GNMA, 7%, 2031 55,000 55,276 Manatee County, FL, Housing Finance Authority Rev. (Single Family, Subordinated), "3", GNMA, 5.3%, 2028 65,000 65,380 Miami-Dade County, FL, Housing Finance Authority Rev. (Home Ownership Mortgage), "A-1", GNMA, 5.2%, 2031 450,000 457,745 Palm Beach County, FL, Housing Finance Authority Rev., "B", GNMA, 5.5%, 2022 170,000 171,071 Pinellas County, FL, Housing Finance Authority Rev. (Multi-County Program), "A-1", GNMA, 5.5%, 2035 595,000 624,667 Pinellas County, FL, Housing Finance Authority Rev. (Multi-County Program), "B-1", GNMA, 6.2%, 2031 270,000 273,040 Pinellas County, FL, Housing Finance Authority Rev., "A-1", GNMA, 4.85%, 2037 1,000,000 1,010,280 - --------------------------------------------------------------------------------------------------------------------------------- $ 2,721,916 - --------------------------------------------------------------------------------------------------------------------------------- Single Family Housing - State - 1.6% - --------------------------------------------------------------------------------------------------------------------------------- Florida Housing Finance Corp. Rev. (Homeowner Mortgage), "1", GNMA, 4.8%, 2031 $1,000,000 $ 1,006,320 Florida Housing Finance Corp. Rev. (Homeowner Mortgage), "4", FSA, 5.85%, 2031 275,000 278,319 - --------------------------------------------------------------------------------------------------------------------------------- $ 1,284,639 - --------------------------------------------------------------------------------------------------------------------------------- Solid Waste Revenue - 0.3% - --------------------------------------------------------------------------------------------------------------------------------- Delaware County, PA, Industrial Development Authority, Resource Recovery Facilities Rev. (American Ref-Fuel Co.), "A", 6.2%, 2019 $ 200,000 $ 208,574 - --------------------------------------------------------------------------------------------------------------------------------- State & Local Agencies - 3.9% - --------------------------------------------------------------------------------------------------------------------------------- Florida Municipal Loan Council Rev., "B", MBIA, 5.625%, 2009 (c) $1,000,000 $ 1,069,790 Florida Municipal Loan Council Rev., "C", MBIA, 5.25%, 2022 1,000,000 1,079,710 St. Augustine, FL, Capital Improvement Rev., AMBAC, 5%, 2029 1,000,000 1,058,010 - --------------------------------------------------------------------------------------------------------------------------------- $ 3,207,510 - --------------------------------------------------------------------------------------------------------------------------------- Tax - Other - 2.1% - --------------------------------------------------------------------------------------------------------------------------------- Orange County, FL, Tourist Development Tax Rev., Subordinated, AMBAC, 5.25%, 2027 $1,500,000 $ 1,601,520 Virgin Islands Public Finance Authority Rev., "A", 5.25%, 2024 130,000 137,019 - --------------------------------------------------------------------------------------------------------------------------------- $ 1,738,539 - --------------------------------------------------------------------------------------------------------------------------------- Tax Assessment - 4.9% - --------------------------------------------------------------------------------------------------------------------------------- Amelia Walk Community Development District, FL, Special Assessment, "B", 5.2%, 2014 $ 200,000 $ 204,140 Arborwood Community Development District, FL, Special Assessment (Master Infrastructure Projects), "B", 5.1%, 2014 200,000 203,508 Concord Station Community Development District, FL, Special Assessment, 5%, 2015 185,000 186,471 Concorde Estates Community Development District, FL, Special Assessment, "B", 5%, 2011 205,000 206,222 Durbin Crossing Community Development District, FL, Special Assessment, "B-1", 4.875%, 2010 250,000 249,833 Fishawk Community Development District II, FL, Tax Allocation, "B", 5%, 2007 45,000 45,104 Greyhawk Landing Community Development, FL, Special Assessment, "B", 6.25%, 2009 100,000 101,318 Heritage Harbour South Community Development District, FL, Special Assessment, "B", 5.4%, 2008 25,000 25,139 Killarney, FL, Community Development District, Special Assessment, "B", 5.125%, 2009 165,000 165,272 Lakes by the Bay South Community Development District, FL, Rev., "B", 5.3%, 2009 180,000 180,464 Middle Village Community Development District, FL, Special Assessment, "A", 5.8%, 2022 95,000 98,595 Middle Village Community Development District, FL, Special Assessment, "B", 5%, 2009 95,000 95,308 New Port Tampa Bay Community Development District, FL, Special Assessment, "B", 5.3%, 2012 200,000 202,090 North Springs Improvement District, FL, Special Assessment (Parkland Golf Country Club), "B-2", 5 125%, 2015 250,000 252,723 Old Palm Community Development District, FL, Special Assessment (Palm Beach Gardens), "B", 5.375%, 2014 145,000 148,319 Palm Glades Community Development District, FL, Special Assessment, "A", 5.3%, 2036 200,000 203,250 Panther Trace II, Community Development District, FL, Special Assessment, "B", 5%, 2010 200,000 200,018 Parkway Center, Community Development District, FL, Special Assessment, "B", 5.625%, 2014 100,000 102,121 Renaissance Community Development District, FL, Special Assessment, "B", 6.25%, 2008 100,000 100,737 Sterling Hill Community Development District, FL, Special Assessment, 5.5%, 2010 200,000 202,144 Tuscany Reserve Community Development District, FL, Special Assessment, "B", 5.25%, 2016 250,000 255,913 Villa Portofino West Community Development District, FL, Special Assessment, "A", 5.35%, 2036 200,000 204,828 Watergrass Community Development District, FL, Special Assessment, "B", 4.875%, 2010 200,000 201,072 Wentworth Estates Community Development District, FL, Special Assessment, "B", 5.125%, 2012 200,000 202,420 - --------------------------------------------------------------------------------------------------------------------------------- $ 4,037,009 - --------------------------------------------------------------------------------------------------------------------------------- Tobacco - 0.7% - --------------------------------------------------------------------------------------------------------------------------------- Louisiana Tobacco Settlement Authority Rev., "2001B", 5.875%, 2039 $ 250,000 $ 263,855 South Carolina Tobacco Settlement Authority Rev., "B", 6.375%, 2030 250,000 286,743 - --------------------------------------------------------------------------------------------------------------------------------- $ 550,598 - --------------------------------------------------------------------------------------------------------------------------------- Toll Roads - 1.3% - --------------------------------------------------------------------------------------------------------------------------------- Lee County, FL, Transportation Facilities Rev., "A", AMBAC, 5%, 2027 $1,000,000 $ 1,060,800 - --------------------------------------------------------------------------------------------------------------------------------- Transportation - Special Tax - 4.6% - --------------------------------------------------------------------------------------------------------------------------------- Commonwealth of Puerto Rico, Highway & Transportation, ROLS (Railroad II R 227-1), MBIA, 7.553%, 2020 (z)(v) $2,500,000 $ 3,292,400 St. Johns County, FL, Transportation Improvement Rev., AMBAC, 5%, 2027 500,000 527,730 - --------------------------------------------------------------------------------------------------------------------------------- $ 3,820,130 - --------------------------------------------------------------------------------------------------------------------------------- Universities - Dormitories - 3.6% - --------------------------------------------------------------------------------------------------------------------------------- Florida Board Regents, Housing Rev. (University of Central Florida), FGIC, 5.25%, 2020 $1,185,000 $ 1,260,093 Florida Board Regents, Housing Rev., MBIA, 5.3%, 2020 610,000 647,771 Florida Finance Authority, Capital Loan Projects Rev., "F", MBIA, 5.125%, 2021 1,000,000 1,039,890 - --------------------------------------------------------------------------------------------------------------------------------- $ 2,947,754 - --------------------------------------------------------------------------------------------------------------------------------- Universities - Secondary Schools - 0.2% - --------------------------------------------------------------------------------------------------------------------------------- Deerfield, IL, Educational Facilities Authority Rev. (Chicagoland Jewish High School Project), 6%, 2041 $ 200,000 $ 204,820 - --------------------------------------------------------------------------------------------------------------------------------- Utilities - Investor Owned - 0.5% - --------------------------------------------------------------------------------------------------------------------------------- Brazos River Authority, TX, Pollution Control Rev. (Texas Utility Co.), "C", 6.75%, 2038 $ 215,000 $ 240,114 Port Morrow, OR, Pollution Control Rev. (Portland General Electric), 5.2%, 2033 200,000 206,156 - --------------------------------------------------------------------------------------------------------------------------------- $ 446,270 - --------------------------------------------------------------------------------------------------------------------------------- Utilities - Municipal Owned - 2.6% - --------------------------------------------------------------------------------------------------------------------------------- Palm Coast, FL, Utility Systems Rev., MBIA, 5%, 2024 $ 250,000 $ 264,490 Port St. Lucie, FL, Utility Rev., MBIA, 5%, 2022 1,000,000 1,056,710 St. Lucie West, FL, Utility Rev., MBIA, 5.25%, 2034 720,000 781,142 - --------------------------------------------------------------------------------------------------------------------------------- $ 2,102,342 - --------------------------------------------------------------------------------------------------------------------------------- Water & Sewer Utility Revenue - 14.9% - --------------------------------------------------------------------------------------------------------------------------------- Florida Community Services Corp., Utility Rev., AMBAC, 5.5%, 2018 $1,125,000 $ 1,211,940 Lee County, FL, Industrial Development Authority Rev. (Bonita Springs Utilities Project), MBIA, 6 05% 2015 1,000,000 1,011,780 Miami Beach, FL, Stormwater Rev., FGIC, 5.25%, 2020 1,000,000 1,063,050 Miami-Dade County, FL, Stormwater Utility Rev., MBIA, 5%, 2028 2,000,000 2,119,140 Orlando, FL, Utilities Commission, Water & Electric Rev. "C", 5%, 2027 1,000,000 1,049,550 Pinellas County, FL, Sewer Rev., FSA, 5%, 2032 1,500,000 1,572,045 Polk County, FL, Utility Systems Rev., "A", FGIC, 5%, 2030 1,000,000 1,056,610 Polk County, FL, Utility Systems Rev., FGIC, 5%, 2023 1,000,000 1,057,340 Seminole County, FL, Water & Sewer Rev., Unrefunded Balance, MBIA, 6%, 2019 940,000 1,085,822 Tohopekaliga Water Authority, Florida Utility System Rev., "A", FSA, 5%, 2024 1,000,000 1,057,960 - --------------------------------------------------------------------------------------------------------------------------------- $ 12,285,237 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $75,204,847) $79,446,264 - --------------------------------------------------------------------------------------------------------------------------------- Floating Rate Demand Notes - 0.8% - --------------------------------------------------------------------------------------------------------------------------------- Pinellas County, FL, Health Facilities Authority Rev. (Pooled Hospital Loan Program), 3.85%, due 10/02/06. at Identified Cost $ 650,000 $ 650,000 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL INVESTMENTS (IDENTIFIED COST, $75,854,847) (k) $ 80,096,264 - --------------------------------------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - 2.5% 2,091,927 - --------------------------------------------------------------------------------------------------------------------------------- NET ASSETS - 100.0% $ 82,188,191 - --------------------------------------------------------------------------------------------------------------------------------- SWAP AGREEMENTS AT 9/30/06 UNREALIZED NOTIONAL CASH FLOWS CASH FLOWS APPRECIATION EXPIRATION AMOUNT COUNTERPARTY TO RECEIVE TO PAY (DEPRECIATION) - -------------------------------------------------------------------------------------------------------------------------------- INTEREST RATE SWAPS 12/01/07 USD 2,000,000 Merrill Lynch 7-Day BMA 2.795% (fixed rate) $ 17,216 12/13/16 USD 1,000,000 Merrill Lynch 7-Day BMA 3.848% (fixed rate) (9,063) 12/15/16 USD 1,000,000 Merrill Lynch 7-Day BMA 4.108% (fixed rate) (28,968) 3/26/17 USD 1,000,000 Goldman Sachs 7-Day BMA 3.710% (fixed rate) 2,993 1/04/19 USD 1,000,000 Citigroup 7-Day BMA 4.307% (fixed rate) (43,423) 3/01/19 USD 1,500,000 Merrill Lynch 7-Day BMA 3.976% (fixed rate) (20,911) - -------------------------------------------------------------------------------------------------------------------------------- $(82,156) - -------------------------------------------------------------------------------------------------------------------------------- At September 30, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts. SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS PORTFOLIO OF INVESTMENTS 9/30/06 (unaudited) MFS(R) GEORGIA MUNICIPAL BOND FUND The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Municipal Bonds - 97.2% - --------------------------------------------------------------------------------------------------------------------------------- ISSUER SHARES/PAR VALUE ($) - --------------------------------------------------------------------------------------------------------------------------------- Airport & Port Revenue - 4.9% - --------------------------------------------------------------------------------------------------------------------------------- Atlanta, GA, Airport Passenger Facilities Rev., "J", FSA, 5%, 2029 $ 750,000 $ 787,658 Atlanta, GA, Airport Passenger Facilities Rev., "J", FSA, 5%, 2034 750,000 784,470 Atlanta, GA, Airport Rev., "B", FSA, 5.25%, 2033 1,000,000 1,070,770 Augusta, GA, Airport Rev., "B", 5.35%, 2028 350,000 361,505 - --------------------------------------------------------------------------------------------------------------------------------- $ 3,004,403 - --------------------------------------------------------------------------------------------------------------------------------- General Obligations - General Purpose - 6.1% - --------------------------------------------------------------------------------------------------------------------------------- Atlanta & Fulton County, GA, Park Improvement, "A", MBIA, 5%, 2030 $ 500,000 $ 527,010 Columbia County, GA (Courthouse Detention Center), 5.625%, 2020 1,490,000 1,556,245 Gilmer County, GA, Building Authority Rev., Courthouse Project, "A", XLCA, 5%, 2029 500,000 527,955 Macon Bibb County, GA, Urban Development Rev. (Bibb County Public Facilities Project), 5.5%, 2022 1,000,000 1,078,850 - --------------------------------------------------------------------------------------------------------------------------------- $ 3,690,060 - --------------------------------------------------------------------------------------------------------------------------------- General Obligations - Improvement - 2.2% - --------------------------------------------------------------------------------------------------------------------------------- Puerto Rico Municipal Finance Agency, RITES, FSA, 8.107%, 2016 (v)(z) $ 500,000 $ 576,540 Suwanee, GA, MBIA, 5.25%, 2032 750,000 792,435 - --------------------------------------------------------------------------------------------------------------------------------- $ 1,368,975 - --------------------------------------------------------------------------------------------------------------------------------- General Obligations - Schools - 7.6% - --------------------------------------------------------------------------------------------------------------------------------- Fayette County, GA, School District Rev., FSA, 0% to 2010, 4.9% to 2024 $ 575,000 $ 488,733 Forsyth County, GA, School District, 6%, 2010 (c) 750,000 819,458 Fulton County, GA, School District, 6.375%, 2010 2,000,000 2,111,520 Wilkes County, GA, School District, 5%, 2024 1,115,000 1,182,614 - --------------------------------------------------------------------------------------------------------------------------------- $ 4,602,325 - --------------------------------------------------------------------------------------------------------------------------------- Healthcare Revenue - Hospitals - 9.3% - --------------------------------------------------------------------------------------------------------------------------------- Athens Clarke County, GA (United Catholic Health East Issue), 5.5%, 2032 $ 500,000 $ 530,830 Chatham County, GA, Hospital Authority Rev. (Memorial Health Medical Center), "A", 6%, 2017 350,000 377,955 Chatham County, GA, Hospital Authority Rev., Hospital Improvement (Memorial Health University), "A", 5.375%, 2026 200,000 212,476 Cobb County, GA, Hospital Authority Revolving, Refunding & Improvement Rev., Anticipation Certificates, AMBAC, 5.25%, 2023 750,000 809,550 Coffee County, GA, Hospital Authority Rev. (Coffee Regional Medical Center, Inc.), 5%, 2026 350,000 355,604 Gainesville & Hall County, GA, Hospital Authority Rev. (Northeast Georgia Health System, Inc.), 5.5%, 2031 500,000 521,865 Royston, GA, Hospital Authority Rev. (Ty Cobb Healthcare System, Inc.), 6.125%, 2009 220,000 222,660 Tift County, GA, Hospital Authority Rev., Anticipation Certificates, AMBAC, 5%, 2022 2,000,000 2,110,580 Valdosta & Lowndes County, GA, Hospital Authority Rev. (Southern Georgia Medical Center Project), AMBAC, 5.25%, 2027 500,000 533,370 - --------------------------------------------------------------------------------------------------------------------------------- $ 5,674,890 - --------------------------------------------------------------------------------------------------------------------------------- Healthcare Revenue - Long Term Care - 0.3% - --------------------------------------------------------------------------------------------------------------------------------- Fulton County, GA, Residential Care Facilities (Canterbury Court), "A", 6.125%, 2034 $ 150,000 $ 157,887 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Environmental Services - 0.9% - --------------------------------------------------------------------------------------------------------------------------------- Savannah, GA, Economic Development Authority, Solid Waste Disposal Rev. (Georgia Waste Management Project), "A", 5.5%, 2016 $ 500,000 $ 538,640 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Other - 1.6% - --------------------------------------------------------------------------------------------------------------------------------- Cartersville, GA, Development Authority Waste (Anheuser Busch Project), 5.95%, 2032 $ 750,000 $ 821,730 Virgin Islands Public Finance Authority, Refinery Facilities Rev. (Hovensa Refinery), 5.875%, 2022 160,000 174,381 - --------------------------------------------------------------------------------------------------------------------------------- $ 996,111 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Paper - 2.1% - --------------------------------------------------------------------------------------------------------------------------------- Effingham County, GA, Development Authority, Solid Waste Disposal Rev. (Fort James), 5.625%, 2018 $ 150,000 $ 150,411 Savannah, GA, Economic Development Pollution (Union Camp Corp.), 6.15%, 2017 1,000,000 1,133,210 - --------------------------------------------------------------------------------------------------------------------------------- $ 1,283,621 - --------------------------------------------------------------------------------------------------------------------------------- Multi-Family Housing Revenue - 3.8% - --------------------------------------------------------------------------------------------------------------------------------- De Kalb County, GA, Housing Authority Multi-Family Housing Rev. (Castaways Apartments), "A", GNMA, 5.4%, 2029 $ 595,000 $ 625,684 Hinesville, GA, Leased Housing Corp., "A", FHA, 6.7%, 2017 900,000 903,519 Savannah, GA, Housing Authority (Chatham Gardens Project), FNMA, 5.625%, 2031 750,000 808,935 - --------------------------------------------------------------------------------------------------------------------------------- $ 2,338,138 - --------------------------------------------------------------------------------------------------------------------------------- Single Family Housing - State - 5.3% - --------------------------------------------------------------------------------------------------------------------------------- Georgia Housing & Finance Authority Rev., 5.5%, 2032 $1,000,000 $ 1,008,850 Georgia Housing & Finance Authority Rev., Single Family Mortgage, "A", 5.6%, 2032 665,000 685,941 Georgia Housing & Finance Authority Rev., Single Family Mortgage, "A-2", 4.85%, 2037 500,000 503,150 Georgia Housing & Finance Authority Rev., Single Family Mortgage, "B", 5%, 2026 250,000 254,768 Georgia Housing & Finance Authority Rev., Single Family Mortgage, "C-2", 5.1%, 2022 750,000 766,635 - --------------------------------------------------------------------------------------------------------------------------------- $ 3,219,344 - --------------------------------------------------------------------------------------------------------------------------------- State & Agency - Other - 2.7% - --------------------------------------------------------------------------------------------------------------------------------- County Commissioners of Georgia Assn., Leasing Program, Rockdale County, GA (Public Purpose Project), AMBAC, 5.625%, 2010 (c) $ 335,000 $ 362,195 County Commissioners of Georgia Assn., Leasing Program, Rockdale County, GA (Public Purpose Project), AMBAC, 5.625%, 2020 165,000 177,731 Fulton County, GA, Facilities Corp. (Fulton County, GA Public Purpose Project), AMBAC, 5.9%, 2019 1,000,000 1,092,220 - --------------------------------------------------------------------------------------------------------------------------------- $ 1,632,146 - --------------------------------------------------------------------------------------------------------------------------------- State & Local Agencies - 3.9% - --------------------------------------------------------------------------------------------------------------------------------- Clayton County, GA, Development Authority Rev., "A", 6.25%, 2009 (c) $ 500,000 $ 545,430 College Park, GA, Bus & Industrial Development Civic Center Project, "N", AMBAC, 5.25%, 2025 500,000 545,990 De Kalb County, GA, Public Safety & Judicial Facilities Authority Rev., 5%, 2029 400,000 421,324 Fayette County, GA, Public Facilities Authority (Criminal Justice Center Project), 6.25%, 2010 (c) 755,000 831,225 - --------------------------------------------------------------------------------------------------------------------------------- $ 2,343,969 - --------------------------------------------------------------------------------------------------------------------------------- Tax - Other - 3.0% - --------------------------------------------------------------------------------------------------------------------------------- Puerto Rico Convention Center, District Authority Hotel Occupancy Tax Rev., "A", CIFG, 4.5%, 2036 $ 750,000 $ 757,620 Virgin Islands Public Finance Authority Rev., ASST GTY, 5.5%, 2018 1,000,000 1,048,670 - --------------------------------------------------------------------------------------------------------------------------------- $ 1,806,290 - --------------------------------------------------------------------------------------------------------------------------------- Tax Assessment - 0.5% - --------------------------------------------------------------------------------------------------------------------------------- Atlanta, GA, Tax Allocation (Eastside Project), "B", 5.6%, 2030 $ 150,000 $ 155,600 Atlanta, GA, Tax Allocation (Princeton Lakes Project), 5.5%, 2031 150,000 152,991 - --------------------------------------------------------------------------------------------------------------------------------- $ 308,591 - --------------------------------------------------------------------------------------------------------------------------------- Tobacco - 0.6% - --------------------------------------------------------------------------------------------------------------------------------- Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, 5.375%, 2033 $ 360,000 $ 371,398 - --------------------------------------------------------------------------------------------------------------------------------- Transportation - Special Tax - 1.1% - --------------------------------------------------------------------------------------------------------------------------------- Commonwealth of Puerto Rico Highway & Transportation Authority, "Y", 5.5%, 2036 $ 610,000 $ 665,687 - --------------------------------------------------------------------------------------------------------------------------------- Universities - Colleges - 9.4% - --------------------------------------------------------------------------------------------------------------------------------- Fulton County, GA (Morehouse College), AMBAC, 6.25%, 2021 $ 980,000 $ 1,085,027 Fulton County, GA, Development Authority Rev. (Georgia Tech Foundation Funding), "A", 5%, 2031 265,000 275,298 Fulton County, GA, Development Authority Rev. (Georgia Tech Foundation), "A", 5.75%, 2017 1,000,000 1,091,130 Private Colleges & University Authority (Emory University), "A", 5.75%, 2009 (c) 1,000,000 1,071,890 Private Colleges & University Authority (Emory University), "A", 5.75%, 2010 (c) 1,000,000 1,089,830 Private Colleges & University Authority (Mercer University), 5.75%, 2011 (c) 500,000 555,625 Savannah, GA, Economic Development Authority Rev. (College of Art & Design, Inc.), ETM, 6.2%, 2009 (c) 500,000 516,040 - --------------------------------------------------------------------------------------------------------------------------------- $ 5,684,840 - --------------------------------------------------------------------------------------------------------------------------------- Universities - Dormitories - 2.6% - --------------------------------------------------------------------------------------------------------------------------------- Georgia Private College & University Authority Rev. (Mercer Housing Corp.), "A", 6%, 2021 $ 500,000 $ 532,895 Marietta, GA, Development Authority Rev., Student Housing (Southern Polytech University), "A", 6.25%, 2007 (c) 1,000,000 1,047,240 - --------------------------------------------------------------------------------------------------------------------------------- $ 1,580,135 - --------------------------------------------------------------------------------------------------------------------------------- Utilities - Municipal Owned - 5.1% - --------------------------------------------------------------------------------------------------------------------------------- Georgia Municipal Electric Authority Power Rev., "A", MBIA, 6.5%, 2020 $1,250,000 $ 1,573,163 Monroe County, GA, Pollution Control Rev. (Oglethorpe Power Corp.), "A", 6.8%, 2012 1,000,000 1,137,220 Summerville, GA, Public Utility Rev., Refunding & Improvement, 5.75%, 2026 350,000 376,366 - --------------------------------------------------------------------------------------------------------------------------------- $ 3,086,749 - --------------------------------------------------------------------------------------------------------------------------------- Water & Sewer Utility Revenue - 24.2% - --------------------------------------------------------------------------------------------------------------------------------- Atlanta, GA, Water & Wastewater Rev., "A", MBIA, 5%, 2033 $ 500,000 $ 519,180 Atlanta, GA, Water & Wastewater Rev., RITES, FGIC, 7.025%, 2016 (v)(z) 4,000,000 5,050,640 Augusta, GA, Water & Sewer Rev., FSA, 5.25%, 2034 1,000,000 1,082,650 Clayton County, GA, Water Authority, Water & Sewer Rev., 6.25%, 2010 (c) 1,000,000 1,097,270 Columbia County, GA, Water & Sewer Rev., FGIC, 6.25%, 2010 (c) 470,000 513,320 Fairburn, GA, Utility Rev., 5.75%, 2020 500,000 530,740 Forsyth County, GA, Water & Sewer Authority, 6.25%, 2010 (c) 1,105,000 1,210,406 Fulton County, GA, Water & Sewer Rev., FGIC, 6.375%, 2014 100,000 112,104 Fulton County, GA, Water & Sewer Rev., FGIC, ETM, 6.375%, 2014 (c) 2,150,000 2,412,451 Gainesville, GA, Water & Sew Rev., FGIC, 5.625%, 2009 (c) 1,000,000 1,070,500 Jackson County, GA, Water & Sewer Authority, "A", AMBAC, 5.75%, 2017 1,000,000 1,094,704 - --------------------------------------------------------------------------------------------------------------------------------- $ 14,693,965 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $55,084,892) $ 59,048,164 - --------------------------------------------------------------------------------------------------------------------------------- Floating Rate Demand Notes - 1.0% - --------------------------------------------------------------------------------------------------------------------------------- Atlanta, GA, Water & Wastewater Rev., "C", 3.85%, due 10/02/06 $ 100,000 $ 100,000 Georgia Municipal Electric Authority, 3.76%, due 10/04/06 500,000 500,000 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL FLOATING RATE DEMAND NOTES (IDENTIFIED COST, $600,000) $ 600,000 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL INVESTMENTS (IDENTIFIED COST, $55,684,892) (k) $ 59,648,164 - --------------------------------------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - 1.8% 1,093,560 - --------------------------------------------------------------------------------------------------------------------------------- NET ASSETS - 100.0% $ 60,741,724 - --------------------------------------------------------------------------------------------------------------------------------- SWAP AGREEMENTS AT 9/30/06 UNREALIZED NOTIONAL CASH FLOWS CASH FLOWS APPRECIATION EXPIRATION AMOUNT COUNTERPARTY TO RECEIVE TO PAY (DEPRECIATION) - -------------------------------------------------------------------------------------------------------------------------------- INTEREST RATE SWAPS 12/01/07 USD 1,000,000 Merrill Lynch 7-Day BMA 2.795% (fixed rate) $ 8,608 12/13/16 USD 500,000 Merrill Lynch 7-Day BMA 3.848% (fixed rate) (4,532) 12/15/16 USD 500,000 Merrill Lynch 7-Day BMA 4.108% (fixed rate) (14,484) 3/26/17 USD 1,000,000 Goldman Sachs 7-Day BMA 3.710% (fixed rate) 2,993 1/04/19 USD 1,000,000 Citigroup 7-Day BMA 4.307% (fixed rate) (43,423) 3/01/19 USD 500,000 Merrill Lynch 7-Day BMA 3.976% (fixed rate) (6,970) 11/09/26 USD 600,000 Goldman Sachs 5.787% (fixed rate) 3-Month LIBOR 36,874 - -------------------------------------------------------------------------------------------------------------------------------- $(20,934) - -------------------------------------------------------------------------------------------------------------------------------- At September 30, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts. SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS PORTFOLIO OF INVESTMENTS 9/30/06 (unaudited) MFS(R) MARYLAND MUNICIPAL BOND FUND The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Municipal Bonds - 96.2% - --------------------------------------------------------------------------------------------------------------------------------- ISSUER SHARES/PAR VALUE ($) - --------------------------------------------------------------------------------------------------------------------------------- Airport and Port Revenue - 0.8% - --------------------------------------------------------------------------------------------------------------------------------- Maryland Transportation Authority Rev. (Baltimore/Washington International Airport), "A", AMBAC, 5%, 2027 $1,000,000 $ 1,048,770 - --------------------------------------------------------------------------------------------------------------------------------- General Obligations - General Purpose - 6.3% - --------------------------------------------------------------------------------------------------------------------------------- Anne Arundel County, MD, General Improvement, 4.2%, 2025 $ 520,000 $ 513,417 Baltimore, MD, "B", 7.15%, 2009 2,120,000 2,329,096 Baltimore, MD, UT, Public Improvement, "A", MBIA, 7%, 2009 1,000,000 1,101,000 Frederick County, MD, Public Facilities, 5.25%, 2009 (c) 2,000,000 2,109,360 Puerto Rico Commonwealth Public Improvement, "A", 5.25%, 2026 2,330,000 2,504,494 - --------------------------------------------------------------------------------------------------------------------------------- $ 8,557,367 - --------------------------------------------------------------------------------------------------------------------------------- General Obligations - Improvement - 14.3% - --------------------------------------------------------------------------------------------------------------------------------- Howard County, MD, "B", 0%, 2008 $1,000,000 $ 936,520 Howard County, MD, Consolidated Public Improvement, "A", 5.5%, 2008 (c) 1,000,000 1,036,450 Howard County, MD, Consolidated Public Improvement, "A", 5.5%, 2008 (c) 2,000,000 2,072,900 Prince George's County, MD, 0%, 2007 5,110,000 4,977,651 Prince George's County, MD, Consolidated Public Improvement, "A", 5%, 2023 2,000,000 2,132,240 Prince George's County, MD, Unrefunded Balance, Public Improvement, FSA, 5.375%, 2015 80,000 84,666 Puerto Rico Municipal Finance Agency, RITES, FSA, 7.099%, 2018 (v)(z) 1,000,000 1,126,400 Washington Suburban Sanitation District, General Construction Rev., 5%, 2027 930,000 993,231 Washington Suburban Sanitation District, General Construction Rev., 5%, 2028 980,000 1,045,160 Washington Suburban Sanitation District, General Construction Rev., 5%, 2029 1,025,000 1,091,615 Worcester County, MD, Public Improvement, 5.625%, 2010 (c) 1,620,000 1,743,493 Worcester County, MD, Public Improvement, 5.625%, 2010 (c) 2,030,000 2,184,747 - --------------------------------------------------------------------------------------------------------------------------------- $ 19,425,073 - --------------------------------------------------------------------------------------------------------------------------------- Healthcare Revenue - Hospitals - 18.9% - --------------------------------------------------------------------------------------------------------------------------------- Maryland Health & Higher Education (Peninsula Regional Medical Center), 5%, 2036 $1,000,000 $ 1,039,820 Maryland Health & Higher Educational Facilities Authority Rev. (Adventist Healthcare), "A", 5.75%, 2025 1,000,000 1,068,110 Maryland Health & Higher Educational Facilities Authority Rev. (Anne Arundel Health Systems), "A", FSA, 5%, 2023 1,000,000 1,059,120 Maryland Health & Higher Educational Facilities Authority Rev. (Calvert Health Systems), 5.5%, 2039 1,000,000 1,069,410 Maryland Health & Higher Educational Facilities Authority Rev. (Carroll County General Hospital), 6%, 2037 1,000,000 1,072,460 Maryland Health & Higher Educational Facilities Authority Rev. (Catholic Health), "A", 6%, 2020 245,000 267,388 Maryland Health & Higher Educational Facilities Authority Rev. (Catholic Health), "A", ETM, 6%, 2020 (c) 755,000 817,499 Maryland Health & Higher Educational Facilities Authority Rev. (Doctors Community Hospital), 5.5%, 2024 1,000,000 1,002,550 Maryland Health & Higher Educational Facilities Authority Rev. (Frederick Memorial Hospital), 5.125%, 2035 1,000,000 1,024,640 Maryland Health & Higher Educational Facilities Authority Rev. (Good Samaritan Hospital), ETM, 5.7%, 2009(c) 1,085,000 1,129,322 Maryland Health & Higher Educational Facilities Authority Rev. (Johns Hopkins Hospital), 5%, 2021 750,000 778,718 Maryland Health & Higher Educational Facilities Authority Rev. (Johns Hopkins Medical Institutions), "A", 5%, 2037 750,000 788,528 Maryland Health & Higher Educational Facilities Authority Rev. (Lifebridge Health), "A", 5.125%, 2034 1,000,000 1,034,460 Maryland Health & Higher Educational Facilities Authority Rev. (Medlantic/Helix Issue), "B", AMBAC, 5.25%, 2038 1,500,000 1,748,775 Maryland Health & Higher Educational Facilities Authority Rev. (Medstar Health), 5.5%, 2033 800,000 848,096 Maryland Health & Higher Educational Facilities Authority Rev. (North Arundel Hospital), 6.5%, 2010 (c) 500,000 555,420 Maryland Health & Higher Educational Facilities Authority Rev. (Suburban Hospital), "A", 5.5%, 2016 1,000,000 1,092,000 Maryland Health & Higher Educational Facilities Authority Rev. (Union Hospital of Cecil County Issue), 5.625%, 2032 1,000,000 1,060,440 Maryland Health & Higher Educational Facilities Authority Rev. (Union Hospital of Cecil County Issue), 5%, 2035 500,000 519,335 Maryland Health & Higher Educational Facilities Authority Rev. (University of Maryland Medical Systems), 6.625%, 2010 (c) 1,000,000 1,100,030 Maryland Health & Higher Educational Facilities Authority Rev. (University of Maryland Medical Systems), "B", AMBAC, 5%, 2024 1,000,000 1,060,950 Maryland Health & Higher Educational Facilities Authority Rev. (Upper Chesapeake Hospital), "A", FSA, 5.5%, 2020 2,000,000 2,066,480 Maryland Health & Higher Educational Facilities Rev. (Helix Health Issue), AMBAC, ETM, 5%, 2027 (c) 1,000,000 1,100,970 Maryland Industrial Development Authority, Economic Development Rev., RIBS, FSA, 8.177%, 2022 (v) 1,400,000 1,827,728 Montgomery County, MD, Economic Development (Trinity Healthcare Group), 5.125%, 2022 500,000 523,110 - --------------------------------------------------------------------------------------------------------------------------------- $ 25,655,359 - --------------------------------------------------------------------------------------------------------------------------------- Healthcare Revenue - Long Term Care - 1.3% - --------------------------------------------------------------------------------------------------------------------------------- Maryland Health & Higher & Higher Educational Facilities Authority Rev. (Edenwald), "A", 5.4%, 2037 $ 200,000 $ 204,724 Maryland Health & Higher Educational Facilities Authority Rev. (Bradford Oaks Nursing & Rehabilitation Center), 6.375%, 2027 1,000,000 1,009,720 Maryland Health & Higher Educational Facilities Authority Rev. (Mercy Ridge), "A", 6%, 2035 150,000 159,456 Westminster, MD, Economic Development Rev. (Carroll Lutheran Village), "A", 6.25%, 2034 400,000 420,904 - --------------------------------------------------------------------------------------------------------------------------------- $ 1,794,804 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Chemicals - 1.1% - --------------------------------------------------------------------------------------------------------------------------------- Baltimore, MD, Port Facilities Rev., Consolidated Coal Sales, "B", 6.5%, 2011 $1,500,000 $ 1,564,260 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Environmental Services - 0.7% - --------------------------------------------------------------------------------------------------------------------------------- Maryland Economic Development Corp., "A", 5%, 2031 $ 300,000 $ 295,842 Northeast Maryland Waste Disposal Authority Resources Recovery Rev. (Baltimore Resco Retrofit Project), 5%, 2012 690,000 702,123 - --------------------------------------------------------------------------------------------------------------------------------- $ 997,965 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Other - 0.3% - --------------------------------------------------------------------------------------------------------------------------------- Virgin Islands Public Finance Authority, Refinery Facilities Rev. (Hovensa Refinery), 5.875%, 2022 $ 375,000 $ 408,705 - --------------------------------------------------------------------------------------------------------------------------------- Miscellaneous Revenue - Entertainment & Tourism - 0.8% - --------------------------------------------------------------------------------------------------------------------------------- Maryland Industrial Development Authority Economic Development (Baltimore Aquarium Project), 5.2%, 2026 $1,000,000 $ 1,055,840 - --------------------------------------------------------------------------------------------------------------------------------- Miscellaneous Revenue - Other - 3.0% - --------------------------------------------------------------------------------------------------------------------------------- Baltimore, MD, Convention Center Hotel Rev., "B", 5.875%, 2039 $ 300,000 $ 319,212 Harford County MD, Economic Development Rev. (Battelle Memorial Institute Project), 5.25%, 2034 1,600,000 1,693,312 Puerto Rico Commonwealth Infrastructure Financing Authority, Special Tax Rev., "B", 5%, 2031 2,000,000 2,076,440 - --------------------------------------------------------------------------------------------------------------------------------- $ 4,088,964 - --------------------------------------------------------------------------------------------------------------------------------- Multi-Family Housing Revenue - 4.7% - --------------------------------------------------------------------------------------------------------------------------------- Baltimore, MD, City Housing Corp. Rev., FHA, 7.75%, 2009 $ 320,000 $ 320,045 Maryland Community Development Administration (Waters Landing II Apartments), "A", GNMA, 5.875%, 2033 1,500,000 1,580,715 Maryland Community Development Administration, "A", 5%, 2034 910,000 925,971 Maryland Community Development Administration, "A", 5.1%, 2044 970,000 986,956 Maryland Community Development Administration, "A", 5.05%, 2047 1,000,000 1,019,160 Maryland Community Development Administration, "B", 5%, 2039 500,000 509,900 Maryland Community Development Administration, "D", 5%, 2032 1,000,000 1,013,630 - --------------------------------------------------------------------------------------------------------------------------------- $ 6,356,377 - --------------------------------------------------------------------------------------------------------------------------------- Parking - 1.2% - --------------------------------------------------------------------------------------------------------------------------------- Maryland Health & Higher Educational Facilities Authority Rev. (Johns Hopkins Medical Institutions), AMBAC, 5%, 2034 $1,500,000 $ 1,577,505 - --------------------------------------------------------------------------------------------------------------------------------- Single Family Housing - Local - 0.1% - --------------------------------------------------------------------------------------------------------------------------------- Prince George's County, MD, Housing Single Family Collateral, "A", 7.4%, 2032 $ 30,000 $ 30,584 Prince George's County, MD, Housing Single Family Collateral, "A", GNMA, 5.6%, 2034 60,000 60,130 - --------------------------------------------------------------------------------------------------------------------------------- $ 90,714 - --------------------------------------------------------------------------------------------------------------------------------- Single Family Housing - State - 4.4% - --------------------------------------------------------------------------------------------------------------------------------- Maryland Community Development Administration Housing, "A", 5.875%, 2016 $1,155,000 $ 1,181,230 Maryland Community Development Administration Residential, "B", 4.75%, 2019 680,000 692,002 Maryland Community Development Administration, "I", 6%, 2041 1,000,000 1,082,100 Maryland Community Development Administration, Department of Housing & Community Development, "L", 4.95%, 2038 1,000,000 1,009,320 Montgomery County, MD, Housing Opportunities Commission (Single Family Mortgage Rev.), "B", 4.55%, 2026 1,505,000 1,499,070 Puerto Rico Housing Finance Authority Home Mortgage Rev., Mortgage Backed Securities, "A", 4.75%, 2023 180,000 180,031 Puerto Rico Housing Finance Authority Mortgage Backed Securities, "A", 4.375%, 2017 300,000 302,157 - --------------------------------------------------------------------------------------------------------------------------------- $ 5,945,910 - --------------------------------------------------------------------------------------------------------------------------------- State & Agency - Other - 2.4% - --------------------------------------------------------------------------------------------------------------------------------- Howard County, MD, COP, 8%, 2019 $ 805,000 $ 1,135,308 Howard County, MD, COP, 8%, 2019 385,000 542,973 Howard County, MD, COP, 8%, 2019 680,000 959,018 Howard County, MD, COP, 8.15%, 2021 450,000 653,139 - --------------------------------------------------------------------------------------------------------------------------------- $ 3,290,438 - --------------------------------------------------------------------------------------------------------------------------------- State & Local Agencies - 4.6% - --------------------------------------------------------------------------------------------------------------------------------- Maryland Stadium Authority, Lease Rev. (Convention Center Expansion), AMBAC, 5.875%, 2012 $1,000,000 $ 1,004,230 Prince George's County, MD, Lease Development Authority Rev., MBIA, 0%, 2009 1,500,000 1,351,230 Puerto Rico Public Finance Corp., Commonwealth Appropriation, "E", 5.7%, 2010 (c) 1,235,000 1,317,918 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2013 (v)(z) 500,000 604,830 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2016 (v)(z) 1,520,000 1,919,669 - --------------------------------------------------------------------------------------------------------------------------------- $ 6,197,877 - --------------------------------------------------------------------------------------------------------------------------------- Tax - Other - 1.5% - --------------------------------------------------------------------------------------------------------------------------------- Virgin Islands Public Finance Authority Rev., "A", 5.5%, 2022 $1,000,000 $ 1,035,150 Virgin Islands Public Finance Authority Rev., "E", 5.875%, 2018 1,000,000 1,048,520 - --------------------------------------------------------------------------------------------------------------------------------- $ 2,083,670 - --------------------------------------------------------------------------------------------------------------------------------- Tax Assessment - 1.8% - --------------------------------------------------------------------------------------------------------------------------------- Anne Arundel County, MD, Special Obligations (Arundel Mills Project), 5.125%, 2029 $1,555,000 $ 1,668,251 Brunswick, MD, Special Obligation (Brunswick Crossing Special Taxing), 5.5%, 2036 250,000 254,243 Prince George's County, MD, Special Obligations (National Harbor Project), 5.2%, 2034 500,000 509,985 - --------------------------------------------------------------------------------------------------------------------------------- $ 2,432,479 - --------------------------------------------------------------------------------------------------------------------------------- Tobacco - 0.6% - --------------------------------------------------------------------------------------------------------------------------------- Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, 5.375%, 2033 $ 230,000 $ 237,282 Guam Economic Development Authority Tobacco Settlement, "B", 5.5%, 2041 400,000 410,276 Virgin Islands Tobacco Settlement Financing Corp., 5%, 2021 225,000 227,367 - --------------------------------------------------------------------------------------------------------------------------------- $ 874,925 - --------------------------------------------------------------------------------------------------------------------------------- Transportation - Special Tax - 1.4% - --------------------------------------------------------------------------------------------------------------------------------- Maryland Department of Transportation, Port Administration Facilities Project, AMBAC, 5.25%, 2020 $1,690,000 $ 1,837,064 - --------------------------------------------------------------------------------------------------------------------------------- Universities - Colleges - 11.3% - --------------------------------------------------------------------------------------------------------------------------------- Annapolis, MD, Economic Development Rev. (St. John's College), 5.5%, 2018 $ 750,000 $ 771,908 Anne Arundel County, MD, Economic Development (Community College Project), 5.25%, 2028 1,600,000 1,717,296 Frederick County, MD, Educational Facilities Rev. (Mount St. Mary's College), "A", 5.7%, 2020 850,000 886,695 Maryland Health & Higher Education (College Of Art), 5%, 2030 750,000 774,908 Maryland Health & Higher Education (Loyola College), "A", 5%, 2040 1,000,000 1,029,920 Maryland Health & Higher Educational Facilities Authority Rev. (Goucher College), 5.375%, 2025 500,000 537,770 Maryland Health & Higher Educational Facilities Authority Rev. (Johns Hopkins University), 5.625%, 2027 1,400,000 1,439,592 Maryland Health & Higher Educational Facilities Authority Rev. (Johns Hopkins University), "A", 5%, 2032 2,000,000 2,069,400 Montgomery County, MD, Rev. Authority (College Arts Center Project), "A", 5%, 2027 1,950,000 2,067,059 Morgan State University, MD, Academic, "A", MBIA, ETM, 0%, 2008 (c) 1,400,000 1,316,546 Morgan State University, MD, Academic, MBIA, 6.05%, 2015 1,500,000 1,691,730 Westminster, MD, Educational Facilities Rev. (McDaniel College), 5.5%, 2032 1,000,000 1,050,930 - --------------------------------------------------------------------------------------------------------------------------------- $ 15,353,754 - --------------------------------------------------------------------------------------------------------------------------------- Universities - Dormitories - 5.3% - --------------------------------------------------------------------------------------------------------------------------------- Maryland Economic Development Corp. (Morgan State University Project), "A", 6%, 2034 $1,000,000 $ 1,020,480 Maryland Economic Development Corp. (University of Maryland College Park Project), AMBAC, 5%, 2019 1,850,000 1,945,386 Maryland Economic Development Corp., Collegiate Housing (Salisbury), "A", 6%, 2019 1,000,000 1,048,960 Maryland Economic Development Corp., Collegiate Housing Rev. (Towson University), "A", 5.75%, 2029 1,000,000 1,018,670 Maryland Economic Development Corp., Student Housing Rev. (University of Maryland College Park Projects), CIFG, 5%, 2033 2,120,000 2,237,872 - --------------------------------------------------------------------------------------------------------------------------------- $ 7,271,368 - --------------------------------------------------------------------------------------------------------------------------------- Universities - Secondary Schools - 0.3% - --------------------------------------------------------------------------------------------------------------------------------- Maryland Industrial Development Financing Authority, Economic Development Authority Rev. (Our Lady of Good Council), "A", 6%, 2035 $ 400,000 $ 429,200 - --------------------------------------------------------------------------------------------------------------------------------- Utilities - Municipal Owned - 3.6% - --------------------------------------------------------------------------------------------------------------------------------- Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2015 (v)(z) $1,680,000 $ 1,886,741 Puerto Rico Electric Power Authority Rev., "NN", 5.125%, 2024 1,500,000 1,584,240 Puerto Rico Electric Power Authority Rev., RITES, FSA, 6.558%, 2015 (v)(z) 1,400,000 1,478,008 - --------------------------------------------------------------------------------------------------------------------------------- $ 4,948,989 - --------------------------------------------------------------------------------------------------------------------------------- Water & Sewer Utility Revenue - 5.5% - --------------------------------------------------------------------------------------------------------------------------------- Baltimore, MD, Project Rev., Refunding Water Projects, "A", FGIC, 5.125%, 2032 $1,000,000 $ 1,055,570 Baltimore, MD, Rev., LEVRRS, MBIA, 7.72%, 2020 (v) 3,000,000 3,874,140 Baltimore, MD, Wastewater Rev. Project, "A", MBIA, 5.65%, 2020 2,000,000 2,291,372 Puerto Rico Aqueduct & Sewer Authority Rev., ETM, 10.25%, 2009 (c) 230,000 251,268 - --------------------------------------------------------------------------------------------------------------------------------- $ 7,472,350 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $122,576,913) $130,759,727 - --------------------------------------------------------------------------------------------------------------------------------- Floating Rate Demand Notes - 1.8% - --------------------------------------------------------------------------------------------------------------------------------- Bell County, TX, Health Facility Development Corp. Rev. (Scott & White Memorial Hospital), 3.89%, due 10/02/06 $ 300,000 $ 300,000 Jefferson County, AL, Sewer Rev., Warrants, "B-4", 3.78%, due 10/05/06 300,000 300,000 Lincoln County, WY, Pollution Control Rev. (Exxon Mobil Corp.), 3.75%, due 10/02/06 500,000 500,000 Lincoln County, WY, Pollution Control Rev. (Exxon Mobil Corp.), 3.81%, due 10/02/06 800,000 800,000 Lincoln County, WY, Pollution Control Rev. (Exxon Mobil Corp.), "B", 3.81%, due 10/02/06 200,000 200,000 Triborough Bridge & Tunnel Authority, NY, Rev., "F", 3.74%, due 10/05/06 400,000 400,000 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL FLOATING RATE DEMAND NOTES (IDENTIFIED COST, $2,500,000) $ 2,500,000 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL INVESTMENTS (IDENTIFIED COST, $125,076,913) (k) $133,259,727 - --------------------------------------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - 2.0% 2,724,945 - --------------------------------------------------------------------------------------------------------------------------------- NET ASSETS - 100.0% $135,984,672 - --------------------------------------------------------------------------------------------------------------------------------- SWAP AGREEMENTS AT 9/30/06 UNREALIZED NOTIONAL CASH FLOWS CASH FLOWS APPRECIATION EXPIRATION AMOUNT COUNTERPARTY TO RECEIVE TO PAY (DEPRECIATION) - -------------------------------------------------------------------------------------------------------------------------------- INTEREST RATE SWAPS 12/01/07 USD 3,000,000 Merrill Lynch 7-Day BMA 2.795% (fixed rate) $ 25,824 12/13/16 USD 2,000,000 Merrill Lynch 7-Day BMA 3.848% (fixed rate) (18,126) 3/26/17 USD 2,000,000 Goldman Sachs 7-Day BMA 3.710% (fixed rate) 5,986 3/01/19 USD 1,500,000 Merrill Lynch 7-Day BMA 3.976% (fixed rate) (20,911) 11/09/26 USD 1,250,000 Goldman Sachs 5.787% (fixed rate) 3-Month LIBOR 76,821 - -------------------------------------------------------------------------------------------------------------------------------- $ 69,594 - -------------------------------------------------------------------------------------------------------------------------------- At September 30, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts. SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS PORTFOLIO OF INVESTMENTS 9/30/06 (unaudited) MFS(R) MASSACHUSETTS MUNICIPAL BOND FUND The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Municipal Bonds - 97.4% - --------------------------------------------------------------------------------------------------------------------------------- ISSUER SHARES/PAR VALUE ($) - --------------------------------------------------------------------------------------------------------------------------------- Airport & Port Revenue - 4.3% - --------------------------------------------------------------------------------------------------------------------------------- Massachusetts Port Authority Rev., "A", AMBAC, 5%, 2035 $2,000,000 $ 2,102,480 Massachusetts Port Authority Rev., "A", FSA, 5.125%, 2017 1,275,000 1,339,209 Massachusetts Port Authority Rev., "A", MBIA, 5%, 2033 3,000,000 3,135,870 Massachusetts Port Authority Rev., "C", 6%, 2010 (c) 1,000,000 1,081,980 Massachusetts Port Authority Rev., "C", 6.125%, 2010 (c) 1,460,000 1,585,224 Massachusetts Port Authority Rev., ETM, 13%, 2013 (c) 610,000 820,871 - --------------------------------------------------------------------------------------------------------------------------------- $ 10,065,634 - --------------------------------------------------------------------------------------------------------------------------------- General Obligations - General Purpose - 14.1% - --------------------------------------------------------------------------------------------------------------------------------- Boston, MA, "A", 5.75%, 2010 (c) $3,645,000 $ 3,895,375 Brookline, MA, 5.375%, 2019 1,800,000 1,922,292 Commonwealth of Massachusetts, "B", 5.25%, 2028 2,500,000 2,872,550 Commonwealth of Massachusetts, "B", FGIC, ETM, 7%, 2009 (c) 1,150,000 1,213,158 Greater Lawrence, MA, Sanitation District, MBIA, 5.625%, 2010 (c) 1,640,000 1,771,840 Lynn, MA, AMBAC, 5.125%, 2018 3,690,000 3,859,076 Massachusetts Consolidated Loan, "A", 6%, 2010 (c) 3,000,000 3,246,270 Massachusetts Consolidated Loan, "B", 5.75%, 2010 (c) 1,000,000 1,075,160 Massachusetts Consolidated Loan, "C", 5.875%, 2009 (c) 1,000,000 1,070,690 Massachusetts Consolidated Loan, "C", 5.75%, 2010 (c) 1,500,000 1,619,490 Middleborough, MA, FGIC, 5.6%, 2010 (c) 75,000 80,410 Puerto Rico Commonwealth, Public Improvement, "A", 5.25%, 2030 1,000,000 1,067,500 Salisbury, MA, MBIA, 5.25%, 2031 2,790,000 3,004,328 Sutton, MA, MBIA, 5.5%, 2017 1,000,000 1,066,910 Sutton, MA, MBIA, 5.5%, 2019 1,000,000 1,064,200 Westford, MA, FGIC, 5.25%, 2020 2,250,000 2,401,358 Weymouth, MA, MBIA, 5.375%, 2020 1,250,000 1,337,025 - --------------------------------------------------------------------------------------------------------------------------------- $ 32,567,632 - --------------------------------------------------------------------------------------------------------------------------------- General Obligations - Improvement - 5.5% - --------------------------------------------------------------------------------------------------------------------------------- Massachusetts Bay Transportation Authority, RITES, 8.389%, 2016 (z)(v) $4,835,000 $ 6,285,113 Massachusetts Bay Transportation Authority, Unrefunded Balance, "A", 5.75%, 2018 320,000 342,938 Maynard, MA, MBIA, 5.5%, 2021 1,000,000 1,102,010 Springfield, MA, FSA, 6.25%, 2009 (c) 1,600,000 1,737,408 Worcester, MA, "A", FSA, 6%, 2010 2,955,000 3,217,936 - --------------------------------------------------------------------------------------------------------------------------------- $ 12,685,405 - --------------------------------------------------------------------------------------------------------------------------------- General Obligations - Schools - 5.0% - --------------------------------------------------------------------------------------------------------------------------------- Belmont, MA, 5%, 2015 $2,165,000 $ 2,184,442 Dudley-Charlton, MA, Regional School District, RITES, FGIC, 6.545%, 2011 (z)(v) 1,365,000 1,674,937 Dudley-Charlton, MA, Regional School District, RITES, FGIC, 6.545%, 2012 (z)(v) 1,430,000 1,773,457 Dudley-Charlton, MA, Regional School District, RITES, FGIC, 6.545%, 2014 (z)(v) 1,565,000 1,964,951 Narragansett, MA, Regional School District, AMBAC, 6%, 2019 1,720,000 1,870,380 Tantasquama, MA, Regional School District, FSA, 5.375%, 2010 (c) 2,000,000 2,148,820 - --------------------------------------------------------------------------------------------------------------------------------- $ 11,616,987 - --------------------------------------------------------------------------------------------------------------------------------- Healthcare Revenue - Hospitals - 11.2% - --------------------------------------------------------------------------------------------------------------------------------- Massachusetts Development Finance Agency Rev. (Massachusetts Biomedical Research), "C", 6.375%, 2016 $ 50,000 $ 54,562 Massachusetts Health & Educational Facilities Authority Rev. (Baystate Medical Center), "F", 5.75%, 2033 2,000,000 2,131,360 Massachusetts Health & Educational Facilities Authority Rev. (Berkshire Health Systems), "E", 6.25%, 2031 1,350,000 1,447,861 Massachusetts Health & Educational Facilities Authority Rev. (Caritas Christi), "B", 6.5%, 2012 500,000 543,695 Massachusetts Health & Educational Facilities Authority Rev. (Caritas Christi), "B", 6.25%, 2022 20,000 21,696 Massachusetts Health & Educational Facilities Authority Rev. (Catholic Health East Issue), 5.5%, 2032 1,575,000 1,672,114 Massachusetts Health & Educational Facilities Authority Rev. (Covenant Health Systems, Inc.), 6.5%, 2017 75,000 83,750 Massachusetts Health & Educational Facilities Authority Rev. (Covenant Health Systems, Inc.), 6%, 2031 1,000,000 1,092,360 Massachusetts Health & Educational Facilities Authority Rev. (Jordan Hospital), "D", 5.25%, 2018 1,330,000 1,345,960 Massachusetts Health & Educational Facilities Authority Rev. (Milford-Whitinsville Hospital), "D", 6.35%, 2032 50,000 53,697 Massachusetts Health & Educational Facilities Authority Rev. (Milford-Whitinsville Regional Hospital), "C", 5.25%, 2018 1,500,000 1,516,770 Massachusetts Health & Educational Facilities Authority Rev. (Milton Hospital), "C", 5.5%, 2016 800,000 826,232 Massachusetts Health & Educational Facilities Authority Rev. (New England Medical Center Hospital), "H", FGIC, 5.375%, 2018 1,000,000 1,082,590 Massachusetts Health & Educational Facilities Authority Rev. (New England Medical Center Hospital), "H", FGIC, 5.375%, 2019 815,000 881,447 Massachusetts Health & Educational Facilities Authority Rev. (New England Medical Center Hospital), "H", FGIC, 5%, 2025 1,135,000 1,187,448 Massachusetts Health & Educational Facilities Authority Rev. (Newton Wellesley Hospital), "G", MBIA, 6.125%, 2015 1,000,000 1,037,120 Massachusetts Health & Educational Facilities Authority Rev. (North Adams Regional Hospital), "C", 6.625%, 2018 475,000 486,462 Massachusetts Health & Educational Facilities Authority Rev. (Partners Healthcare Systems), "A", MBIA, 5.375%, 2018 2,000,000 2,043,180 Massachusetts Health & Educational Facilities Authority Rev. (Partners Healthcare Systems), "C", 5.75%, 2021 100,000 108,719 Massachusetts Health & Educational Facilities Authority Rev. (South Shore Hospital), "F", 5.625%, 2019 2,000,000 2,110,480 Massachusetts Health & Educational Facilities Authority Rev. (University of Massachusetts Memorial Hospital), "C", 6.5%, 2021 1,000,000 1,098,780 Massachusetts Health & Educational Facilities Authority Rev. (University of Massachusetts Memorial Hospital), "D", 5%, 2033 500,000 507,035 Massachusetts Industrial Finance Agency Rev., Capital Appreciation (Massachusetts Biomedical Research), "A", 0%, 2010 5,300,000 4,531,129 - --------------------------------------------------------------------------------------------------------------------------------- $ 25,864,447 - --------------------------------------------------------------------------------------------------------------------------------- Healthcare Revenue - Long Term Care - 0.3% - --------------------------------------------------------------------------------------------------------------------------------- Boston, MA, Industrial Development Finance Authority Rev. (Alzheimer's Center Project), FHA, 5.5%, 2012 $ 85,000 $ 85,114 Massachusetts Development Finance Agency Rev., First Mortgage (Loomis Communities Project), "A", 6.9%, 2032 530,000 582,905 - --------------------------------------------------------------------------------------------------------------------------------- $ 668,019 - --------------------------------------------------------------------------------------------------------------------------------- Human Services - 0.4% - --------------------------------------------------------------------------------------------------------------------------------- Massachusetts Health & Educational Facilities Authority Rev. (Learning Center for Deaf Children), "C", 6.1%, 2019 $1,000,000 $ 1,023,850 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Airlines - 1.4% - --------------------------------------------------------------------------------------------------------------------------------- Massachusetts Port Authority Rev. (U.S. Airways Project), MBIA, 5.875%, 2016 $1,900,000 $ 2,006,229 Massachusetts Port Authority Rev., Special Facilities (U.S. Airways Project), "A", MBIA, 5.625%, 2011 1,140,000 1,164,316 - --------------------------------------------------------------------------------------------------------------------------------- $ 3,170,545 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Environmental Services - 0.8% - --------------------------------------------------------------------------------------------------------------------------------- Massachusetts Development Finance Agency Rev. (Waste Management, Inc. Project), 5.5%, 2027 $ 750,000 $ 800,640 Massachusetts Development Finance Agency Rev. (Waste Management, Inc.), "B", 6.9%, 2029 1,000,000 1,080,550 - --------------------------------------------------------------------------------------------------------------------------------- $ 1,881,190 - --------------------------------------------------------------------------------------------------------------------------------- Industrial Revenue - Other - 2.0% - --------------------------------------------------------------------------------------------------------------------------------- Massachusetts Development Finance Agency Rev., Resource Recovery (Fluor Corp.), 5.625%, 2019 $1,675,000 $ 1,755,249 Massachusetts Industrial Finance Agency Rev. (Welch Foods, Inc.), 5.6%, 2017 2,100,000 2,175,474 Virgin Islands Public Finance Authority, Refinery Facilities Rev. (Hovensa Refinery), 5.875%, 2022 595,000 648,479 - --------------------------------------------------------------------------------------------------------------------------------- $ 4,579,202 - --------------------------------------------------------------------------------------------------------------------------------- Miscellaneous Revenue - Other - 2.4% - --------------------------------------------------------------------------------------------------------------------------------- Martha's Vineyard, MA, Land Bank Rev., AMBAC, 5%, 2029 $ 785,000 $ 826,927 Martha's Vineyard, MA, Land Bank Rev., AMBAC, 5%, 2034 1,365,000 1,430,670 Massachusetts Development Finance Agency Rev. (WGBH Educational Foundation), "A", AMBAC, 5.375%, 2012 (c) 3,000,000 3,278,520 - --------------------------------------------------------------------------------------------------------------------------------- $ 5,536,117 - --------------------------------------------------------------------------------------------------------------------------------- Multi-Family Housing Revenue - 5.4% - --------------------------------------------------------------------------------------------------------------------------------- Massachusetts Development Finance Agency Rev. (Credit Housing-Chelsea Homes), "I-A", LOC, 5%, 2024 $1,185,000 $ 1,200,026 Massachusetts Development Finance Agency Rev. (Morville House Apartments), "A", LOC, 4.95%, 2023 2,500,000 2,527,875 Massachusetts Housing Finance Agency Rev., "A", 5%, 2028 1,000,000 1,022,150 Massachusetts Housing Finance Agency Rev., "E", 5%, 2028 1,000,000 1,026,960 Massachusetts Housing Finance Agency Rev., "F", 5.125%, 2034 720,000 740,844 Massachusetts Housing Finance Agency Rev., "P", 5%, 2023 1,240,000 1,274,534 Massachusetts Housing Finance Agency Rev., "P", 5.1%, 2033 1,565,000 1,600,791 Massachusetts Housing Finance Agency Rev., "P", 5.2%, 2045 1,445,000 1,476,689 Massachusetts Housing Finance Agency Rev., Rental Mortgage, "A", AMBAC, 5.7%, 2020 1,475,000 1,514,456 - --------------------------------------------------------------------------------------------------------------------------------- $ 12,384,325 - --------------------------------------------------------------------------------------------------------------------------------- Parking - 0.6% - --------------------------------------------------------------------------------------------------------------------------------- Rail Connections, Inc., Massachusetts Rev. (Route 128 Parking Garage), "A", 6%, 2009 (c) $ 450,000 $ 487,075 Rail Connections, Inc., Massachusetts Rev. (Route 128 Parking Garage), "A", 6%, 2009 (c) 500,000 541,195 Rail Connections, Inc., Massachusetts Rev. (Route 128 Parking Garage), "A", 6%, 2009 (c) 250,000 270,597 - --------------------------------------------------------------------------------------------------------------------------------- $ 1,298,867 - --------------------------------------------------------------------------------------------------------------------------------- Sales & Excise Tax Revenue - 0.7% - --------------------------------------------------------------------------------------------------------------------------------- Route 3 North Transit Improvement Associates Rev., MBIA, 5.625%, 2010 (c) $1,500,000 $ 1,607,400 - --------------------------------------------------------------------------------------------------------------------------------- Single Family Housing - State - 2.4% - --------------------------------------------------------------------------------------------------------------------------------- Massachusetts Housing Finance Agency, Single Family Housing Rev., "102", 5%, 2029 $1,500,000 $ 1,524,525 Massachusetts Housing Finance Agency, Single Family Housing Rev., "118", 4.75%, 2030 1,500,000 1,508,985 Massachusetts Housing Finance Agency, Single Family Housing Rev., "122", 4.85%, 2031 2,000,000 2,035,840 Massachusetts Housing Finance Agency, Single Family Housing Rev., "91", 5.5%, 2031 565,000 566,458 - --------------------------------------------------------------------------------------------------------------------------------- $ 5,635,808 - --------------------------------------------------------------------------------------------------------------------------------- Solid Waste Revenue - 1.2% - --------------------------------------------------------------------------------------------------------------------------------- Massachusetts Development Finance Agency Rev. (Ogden Haverhill Associates), "A", 6.7%, 2014 $ 600,000 $ 654,978 Massachusetts Industrial Finance Agency, Resource Recovery Rev. (Ogden Haverhill Associates), "A", 5.5%, 2013 25,000 26,136 Massachusetts Industrial Finance Agency, Resource Recovery Rev. (Ogden Haverhill Associates), "A", 5.6%, 2019 1,925,000 2,003,752 - --------------------------------------------------------------------------------------------------------------------------------- $ 2,684,866 - --------------------------------------------------------------------------------------------------------------------------------- State & Agency - Other - 0.6% - --------------------------------------------------------------------------------------------------------------------------------- Massachusetts Development Finance Agency Rev. (Visual & Performing Arts Project), 6%, 2015 $1,235,000 $ 1,428,994 - --------------------------------------------------------------------------------------------------------------------------------- State & Local Agencies - 2.0% - --------------------------------------------------------------------------------------------------------------------------------- Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2016 (z)(v) $2,500,000 $ 3,157,350 University of Massachusetts, Building Authority Project Rev., "2", AMBAC, 5.5%, 2010 1,400,000 1,503,236 - --------------------------------------------------------------------------------------------------------------------------------- $ 4,660,586 - --------------------------------------------------------------------------------------------------------------------------------- Student Loan Revenue - 0.7% - --------------------------------------------------------------------------------------------------------------------------------- Massachusetts Educational Financing Authority, Education Loan Rev., "E", AMBAC, 5%, 2015 $ 90,000 $ 92,370 Massachusetts Educational Financing Authority, Education Loan Rev., "Issue E", AMBAC, 5.3%, 2016 1,490,000 1,523,823 Massachusetts Educational Financing Authority, Education Loan Rev., "Issue G", "A", MBIA, 6.05%, 2017 50,000 51,365 - --------------------------------------------------------------------------------------------------------------------------------- $ 1,667,558 - --------------------------------------------------------------------------------------------------------------------------------- Tax - Other - 2.0% - --------------------------------------------------------------------------------------------------------------------------------- Virgin Islands Public Finance Authority Rev., "A", 5.5%, 2022 $2,950,000 $ 3,053,693 Virgin Islands Public Finance Authority Rev., "E", 5.875%, 2018 1,420,000 1,488,898 - --------------------------------------------------------------------------------------------------------------------------------- $ 4,542,591 - --------------------------------------------------------------------------------------------------------------------------------- Tax Assessment - 1.9% - --------------------------------------------------------------------------------------------------------------------------------- Massachusetts Bay Transportation Authority Rev., "A", 5%, 2014 (c) $3,500,000 $ 3,813,495 Massachusetts Bay Transportation Authority, Unfunded Balance, "A", 5.25%, 2030 615,000 645,356 - --------------------------------------------------------------------------------------------------------------------------------- $ 4,458,851 - --------------------------------------------------------------------------------------------------------------------------------- Tobacco - 0.5% - --------------------------------------------------------------------------------------------------------------------------------- Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, 5.375%, 2033 $ 665,000 $ 686,054 Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, 5.5%, 2039 400,000 414,108 Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, "A", 0%, 2050 2,000,000 133,340 - --------------------------------------------------------------------------------------------------------------------------------- $ 1,233,502 - --------------------------------------------------------------------------------------------------------------------------------- Universities - Colleges - 20.1% - --------------------------------------------------------------------------------------------------------------------------------- Massachusetts College Building Authority Project Rev., "A", XLCA, 5.25%, 2023 $1,000,000 $ 1,069,820 Massachusetts College Building Authority Project Rev., "A", XLCA, 5%, 2043 2,110,000 2,183,977 Massachusetts Development Finance Agency Rev. (Boston University), XLCA, 6%, 2059 1,500,000 1,847,025 Massachusetts Development Finance Agency Rev. (Clark University), XLCA, 5.125%, 2025 1,500,000 1,605,330 Massachusetts Development Finance Agency Rev. (Curry College), "A", ACA, 5%, 2036 1,000,000 1,024,850 Massachusetts Development Finance Agency Rev. (Hampshire College), 5.7%, 2034 1,000,000 1,063,930 Massachusetts Development Finance Agency Rev. (Massachusetts College of Pharmacy), "B", 6.625%, 2010 (c) 50,000 55,127 Massachusetts Development Finance Agency Rev. (Massachusetts College of Pharmacy), "C", 5.75%, 2033 1,000,000 1,070,290 Massachusetts Development Finance Agency Rev. (Mount Holyoke College), 5.125%, 2021 1,000,000 1,052,950 Massachusetts Development Finance Agency Rev. (Olin College), "B", XLCA, 5.25%, 2033 3,000,000 3,197,580 Massachusetts Development Finance Agency Rev. (Suffolk University), 5.75%, 2009 (c) 1,000,000 1,064,120 Massachusetts Development Finance Agency Rev. (Suffolk University), 5.85%, 2009 (c) 1,000,000 1,066,710 Massachusetts Development Finance Agency Rev. (Western New England College), 6.125%, 2012 (c) 1,115,000 1,272,182 Massachusetts Development Finance Agency Rev. Higher Education (Smith College), 5.5%, 2010 (c) 1,210,000 1,302,964 Massachusetts Health & Educational Facilities Authority Rev. (Boston College), "K", 5.25%, 2023 4,350,000 4,352,305 Massachusetts Health & Educational Facilities Authority Rev. (Simmons College), "D", AMBAC, 6.05%, 2010 (c) 1,745,000 1,921,873 Massachusetts Health & Educational Facilities Authority Rev. (Simmons College), "F", FGIC, 5%, 2023 500,000 529,920 Massachusetts Health & Educational Facilities Authority Rev.(University of Massachusetts Worcester Campus), "B", FGIC, 5.125%, 2019 1,780,000 1,893,813 Massachusetts Health & Educational Facilities Authority Rev. (University of Massachusetts), "A", FGIC, 5.75%, 2010 (c) 2,395,000 2,611,245 Massachusetts Health & Educational Facilities Authority Rev. (University of Massachusetts), "A", FGIC, 5.85%, 2010 (c) 1,200,000 1,312,776 Massachusetts Health & Educational Facilities Authority Rev. (University of Massachusetts), "C", MBIA, 5.25%, 2031 3,000,000 3,211,230 Massachusetts Health & Educational Facilities Authority Rev. (University of Massachusetts), "D", FGIC, 5%, 2029 1,500,000 1,581,795 Massachusetts Health & Educational Facilities Authority Rev. (Wellesley College), 5%, 2033 1,000,000 1,045,290 Massachusetts Health & Educational Facilities Authority Rev. (Wheelock College), "B", MBIA, 5.5%, 2021 3,275,000 3,486,892 Massachusetts Health & Educational Facilities Authority Rev. (Williams College), "H", 5%, 2028 1,000,000 1,052,480 Massachusetts Health & Educational Facilitites Authority Rev. (University of Massachusetts), "A", FGIC, 5.625%, 2010 (c) 2,170,000 2,355,904 Massachusetts Industrial Finance Agency Rev. (Brandeis University), "C", MBIA, 0%, 2009 1,000,000 890,870 Massachusetts Industrial Finance Agency Rev. (Brandeis University), "C", MBIA, 0%, 2010 1,000,000 855,110 Massachusetts Industrial Finance Agency Rev. (Brandeis University), "C", MBIA, 0%, 2011 500,000 410,710 - --------------------------------------------------------------------------------------------------------------------------------- $ 46,389,068 - --------------------------------------------------------------------------------------------------------------------------------- Universities - Secondary Schools - 4.7% - --------------------------------------------------------------------------------------------------------------------------------- Massachusetts Development Finance Agency Rev. (Deerfield Academy), "A", 5%, 2028 $1,000,000 $ 1,050,840 Massachusetts Development Finance Agency Rev. (Williston Northampton School), 6.5%, 2008 (c) 1,300,000 1,396,304 Massachusetts Development Finance Agency Rev. (Xaverian Brothers High School), 5.55%, 2019 1,000,000 1,047,180 Massachusetts Development Finance Agency Rev. (Xaverian Brothers High School), 5.65%, 2029 1,000,000 1,039,700 Massachusetts Development Finance Agency Rev. (Middlesex School), 5.125%, 2023 500,000 533,955 Massachusetts Industrial Finance Agency Rev. (Belmont Hill School), 5.625%, 2020 1,150,000 1,202,624 Massachusetts Industrial Finance Agency Rev. (Concord Academy), 5.5%, 2027 2,000,000 2,070,300 Massachusetts Industrial Finance Agency Rev. (Dana Hall School), 5.9%, 2007 (c) 1,340,000 1,388,669 Massachusetts Industrial Finance Agency Rev. (Tabor Academy), 5.4%, 2018 1,000,000 1,052,950 - --------------------------------------------------------------------------------------------------------------------------------- $ 10,782,522 - --------------------------------------------------------------------------------------------------------------------------------- Utilities - Investor Owned - 0.9% - --------------------------------------------------------------------------------------------------------------------------------- Massachusetts Development Finance Agency Rev. (Dominion Energy Brayton Point), 5%, 2036 $2,000,000 $ 2,072,260 - --------------------------------------------------------------------------------------------------------------------------------- Utilities - Municipal Owned - 0.3% - --------------------------------------------------------------------------------------------------------------------------------- Massachusetts Development Finance Agency Rev. (Devens Electric Systems), 5.625%, 2016 $ 725,000 $ 773,640 - --------------------------------------------------------------------------------------------------------------------------------- Water & Sewer Utility Revenue - 6.0% - --------------------------------------------------------------------------------------------------------------------------------- Massachusetts Water Pollution Abatement Trust Rev. (MWRA Program), "A", 5%, 2032 $1,510,000 $ 1,575,730 Massachusetts Water Pollution Abatement Trust Rev. (Pool Program Bonds), "10", 5%, 2029 1,000,000 1,052,830 Massachusetts Water Pollution Abatement Trust Rev. (Pool Program Bonds), "10", 5%, 2034 1,000,000 1,046,711 Massachusetts Water Pollution Abatement Trust Rev., Series "5", 5.75%, 2009 (c) 975,000 1,041,758 Massachusetts Water Pollution Abatement Trust Rev., Unrefunded Balance, "5", 5.75%, 2017 25,000 26,649 Massachusetts Water Resources Authority, General, Rev., "A", MBIA, 5%, 2028 800,000 858,768 Massachusetts Water Resources Authority, General, Rev., "A", FGIC, 6%, 2010 (c) 1,000,000 1,094,090 Massachusetts Water Resources Authority, General, Rev., "J", FSA, 5%, 2023 500,000 524,665 Massachusetts Water Resources Authority, RITES, FGIC, 8.939%, 2019 (z)(v) 4,010,000 5,653,298 Springfield, MA, Water & Sewer Commission, General, Rev., "A", AMBAC, 5%, 2021 1,000,000 1,059,340 - --------------------------------------------------------------------------------------------------------------------------------- $ 13,933,839 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $210,134,064) $225,213,705 - --------------------------------------------------------------------------------------------------------------------------------- Floating Rate Demand Notes - 1.1% - --------------------------------------------------------------------------------------------------------------------------------- Bell County, TX, Health Facility Development Corp. Rev. (Scott & White Memorial Hospital), 3.55%, due 10/11/06 $ 200,000 $ 200,000 Jefferson County, AL, Sewer Rev., Capital Improvement Warrants Rev., "A", 3.38%, due 10/05/06 100,000 100,000 Jefferson County, AL, Sewer Rev., Warrants Rev., "B-4", 3.38%, due 10/05/06 100,000 100,000 Philadelphia, PA, Hospitals & Higher Educational Facilities Authority Rev. (Children's Hospital Project), "C", 3.54%, due 10/11/06 1,000,000 1,000,000 Pinellas County, FL, Health Facilities Authority Rev. (Pooled Hospital Loan Program), 3.5%, due 10/11/06 800,000 800,000 Triborough Bridge & Tunnel Authority, NY, Rev., "F", 3.32%, due 10/05/06 300,000 300,000 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL FLOATING RATE DEMAND NOTES (IDENTIFIED COST, $2,500,000) $ 2,500,000 - --------------------------------------------------------------------------------------------------------------------------------- TOTAL INVESTMENTS (IDENTIFIED COST, $212,634,064) (k) $227,713,705 - --------------------------------------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - 1.5% 3,391,606 - --------------------------------------------------------------------------------------------------------------------------------- NET ASSETS - 100.0% $231,105,311 - --------------------------------------------------------------------------------------------------------------------------------- SWAP AGREEMENTS AT 9/30/06 UNREALIZED NOTIONAL CASH FLOWS CASH FLOWS APPRECIATION EXPIRATION AMOUNT COUNTERPARTY TO RECEIVE TO PAY (DEPRECIATION) - -------------------------------------------------------------------------------------------------------------------------------- INTEREST RATE SWAPS 12/01/07 USD 5,000,000 Merrill Lynch 7-Day BMA 2.795% (fixed rate) $ 43,041 12/15/16 USD 2,500,000 Merrill Lynch 7-Day BMA 4.108% (fixed rate) (72,420) 11/09/26 USD 2,250,000 Goldman Sachs 5.787% (fixed rate) 3-Month LIBOR 138,278 11/16/26 USD 2,500,000 Merrill Lynch 5.856% (fixed rate) 3-Month LIBOR 173,667 - -------------------------------------------------------------------------------------------------------------------------------- $282,566 - -------------------------------------------------------------------------------------------------------------------------------- At September 30, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts. The following abbreviations are used in this report and are defined: BMA Bond Market Assn. COP Certificate of Participation ETM Escrowed to Maturity LIBOR London Interbank Offered Rate LOC Letter of Credit Insurers Inverse Floaters ---------------------------------------------------------------------------------------------------------------------------- ACA ACA Financial Guaranty Corp. LEVRRS Leveraged Reverse Rate Security AMBAC AMBAC Indemnity Corp. RIBS Residual Interest Bonds ASST GTY Assured Guaranty Insurance Co. RITES Residual Interest Tax-Exempt Security CHFC California Health Facilities Construction Program ROLS Reset Option Longs CIFG CIFG IXIS Financial Guaranty FGIC Financial Guaranty Insurance Co. FHA Federal Housing Administration FNMA Federal National Mortgage Assn. FSA Financial Security Assurance, Inc. GNMA Government National Mortgage Assn. MBIA MBIA Insurance Corp. XLCA XL Capital Insurance Co. Portfolio Footnotes: (c) Refunded bond. (d) Non-income producing security - in default. (k) As of September 30, 2006, the following funds held securities fair valued in accordance with the policies adopted by the Board of Trustees. All of these security values were provided by an independent pricing service using an evaluated bid. FUND MARKET VALUE % OF MARKET VALUE --------------------------------------------------------------------------- Alabama Fund $ 83,430,927 98.82% Arkansas Fund 129,506,918 99.16% California Fund 379,863,386 98.93% Florida Fund 79,446,264 99.19% Georgia Fund 59,048,164 98.99% Maryland Fund 130,759,727 98.12% Massachusetts Fund 225,213,705 98.90% (n) Securities exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be sold in the ordinary course of business in transactions exempt from registration, normally to qualified institutional buyers. At period end, the aggregate value of these securities was $177,984, representing 0.2%, of net assets for the Florida Fund. (v) Inverse floating rate security. (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 funds h old the following restricted securities: ACQUISITION ACQUISITION CURRENT TOTAL % FUND DESCRIPTION DATE COST MARKET VALUE OF NET ASSETS - ------------------------------------------------------------------------------------------------------------------------------------ Alabama Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2013 5/20/1999 $ 536,360 $ 561,530 Fund Guam Power Authority Rev., RITES, AMBAC, 6.065%, 2018 5/20/1999 4,376,790 4,883,040 Puerto Rico Municipal Finance Agency, RITES, FSA, 7.099%, 2017 1/6/2000 469,080 563,200 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2013 9/30/1999 509,110 604,830 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2016 3/31/1999 569,030 631,470 - ------------------------------------------------------------------------------------------------------------------------------- Total Restricted Securities $ 7,244,070 8.4% =========== ==== Arkansas Commonwealth of Puerto Rico, Infrastructure, RITES, ETM, Fund 7.094%, 2019 10/5/2000 $1,282,225 $ 1,436,200 Commonwealth of Puerto Rico, RITES, MBIA, 7.594%, 2020 3/30/2000 3,067,320 3,449,640 Puerto Rico Municipal Finance Agency, RITES, FSA, 7.099%, 2017 1/6/2000 689,548 827,903 Puerto Rico Municipal Finance Agency, RITES, FSA, 7.099%, 2018 1/6/2000 3,006,835 3,660,800 - ------------------------------------------------------------------------------------------------------------------------------- Total Restricted Securities $ 9,374,543 7.0% =========== ==== California Commonwealth of Puerto Rico, ROLS, Series II R 124B, XLCA, Fund 7.483%, 2017 10/22/2001 $1,816,140 $ 1,934,790 Commonwealth of Puerto Rico, ROLS, Series II R 184C, FGIC, 7.553%, 2016 8/5/2002 4,269,738 4,240,698 Los Angeles, CA, RITES, 6.535%, 2014 7/20/1999 5,672,548 6,622,747 Los Angeles, CA, Union School District, RITES, FSA, 6.535%, 2011 3/4/2003 5,808,100 5,829,900 Southern California Metropolitan Water District Rev., RITES, 7.545%, 2013 5/7/2001 5,819,300 6,534,700 State of California, RITES, "B", 7.525%, 2017 1/3/2000 1,230,275 1,441,425 University of California Rev., RITES, MBIA, 6.285%, 2016 5/21/1999 5,783,273 5,988,881 - ------------------------------------------------------------------------------------------------------------------------------- Total Restricted Securities $32,593,141 8.3% =========== ==== Florida Commonwealth of Puerto Rico, Highway & Transportation, ROLS Fund (Railroad II R 227-1), MBIA, 7.553%, 2020 4/25/2003 $3,282,600 $ 3,292,400 Commonwealth of Puerto Rico, RITES, MBIA, 7.594%, 2019 3/30/2000 1,030,240 1,149,880 State of Florida, RITES, 6.025%, 2017 4/9/1999 3,042,840 3,261,900 - ------------------------------------------------------------------------------------------------------------------------------- Total Restricted Securities $ 7,704,180 9.4% =========== ==== Georgia Atlanta, GA, Water & Wastewater Rev., RITES, FGIC, 7.025%, 2016 4/20/1999 $4,668,400 $ 5,050,640 Fund Puerto Rico Municipal Finance Agency, RITES, FSA, 8.107%, 2016 1/6/2000 519,760 576,540 - ------------------------------------------------------------------------------------------------------------------------------- Total Restricted Securities $ 5,627,180 9.3% =========== ==== Maryland Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2015 5/20/1999 $1,760,909 $ 1,886,741 Fund Puerto Rico Electric Power Authority Rev., RITES, FSA, 6.558%, 2015 9/16/1999 1,367,100 1,478,008 Puerto Rico Municipal Finance Agency, RITES, FSA, 7.099%, 2018 1/6/2000 905,080 1,126,400 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2013 9/30/1999 509,110 604,830 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2016 3/31/1999 1,729,851 1,919,669 - ------------------------------------------------------------------------------------------------------------------------------- Total Restricted Securities $ 7,015,648 5.2% =========== ==== Massachusetts Dudley-Charlton, MA, Regional School District, RITES, FGIC, Fund 6.545%, 2011 5/5/1999 $1,501,582 $ 1,674,937 Dudley-Charlton, MA, Regional School District, RITES, FGIC, 6.545%, 2012 5/5/1999 1,558,414 1,773,457 Dudley-Charlton, MA, Regional School District, RITES, FGIC, 6.545%, 2014 5/5/1999 1,687,884 1,964,951 Massachusetts Bay Transportation Authority, RITES, 8.389%, 2016 4/19/2000 5,484,534 6,285,113 Massachusetts Water Resources Authority, RITES, FGIC, 8.939%, 2019 3/16/2000 4,742,707 5,653,298 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2016 3/31/1999 2,845,150 3,157,350 - ------------------------------------------------------------------------------------------------------------------------------- Total Restricted Securities $20,509,106 8.9% =========== ==== SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENTS OF ASSETS AND LIABILITIES At 9/30/06 (unaudited) These statements represent each fund's balance sheet, which details the assets and liabilities comprising the total value of each fund. ALABAMA ARKANSAS CALIFORNIA FLORIDA FUND FUND FUND FUND ASSETS - ------------------------------------------------------------------------------------------------------------------------------ Investments - Identified cost $79,844,401 $122,523,961 $361,008,594 $75,854,847 Unrealized appreciation (depreciation) 4,586,526 8,082,957 22,954,792 4,241,417 - ------------------------------------------------------------------------------------------------------------------------------ Total investments, at value $84,430,927 $130,606,918 $383,963,386 $80,096,264 Cash 96,016 68,572 80,188 15,427 Receivable for investments sold 120,000 1,001,927 2,598,450 935,233 Receivable for fund shares sold 24,147 5,143 329,464 5,942 Interest receivable 1,228,960 1,825,698 4,901,173 1,514,149 Unrealized appreciation on interest rate swaps 184,881 222,211 307,931 20,209 Other assets 354 482 1,082 322 - ------------------------------------------------------------------------------------------------------------------------------ Total assets $86,085,285 $133,730,951 $392,181,674 $82,587,546 - ------------------------------------------------------------------------------------------------------------------------------ LIABILITIES - ------------------------------------------------------------------------------------------------------------------------------ Distributions payable $126,115 $213,547 $627,048 $144,565 Payable for fund shares reacquired 44,660 64,949 741,046 90,552 Unrealized depreciation on interest rate swaps -- -- 130,269 102,365 Payable to affiliates - Management fee 2,115 3,286 9,635 2,026 Shareholder servicing costs 1,895 4,260 8,954 3,224 Distribution and service fees 2,508 4,694 6,874 1,183 Administrative services fee 195 264 634 190 Payable for independent trustees' compensation 11,082 10,660 21,590 10,456 Accrued expenses and other liabilities 39,046 42,351 86,040 44,794 - ------------------------------------------------------------------------------------------------------------------------------ Total liabilities $227,616 $344,011 $1,632,090 $399,355 - ------------------------------------------------------------------------------------------------------------------------------ Net assets $85,857,669 $133,386,940 $390,549,584 $82,188,191 - ------------------------------------------------------------------------------------------------------------------------------ NET ASSETS CONSIST OF - ------------------------------------------------------------------------------------------------------------------------------ Paid-in capital $80,881,936 $125,415,940 $368,942,948 $78,275,882 Unrealized appreciation (depreciation) on investments 4,771,407 8,305,168 23,132,454 4,159,261 Accumulated net realized gain (loss) on investments 351,648 (410,565) (1,072,683) (150,555) Accumulated undistributed (distributions in excess of) net investment income (147,322) 76,397 (453,135) (96,397) - ------------------------------------------------------------------------------------------------------------------------------ Net assets $85,857,669 $133,386,940 $390,549,584 $82,188,191 - ------------------------------------------------------------------------------------------------------------------------------ Statements of Assets and Liabilities (unaudited) - continued ALABAMA ARKANSAS CALIFORNIA FLORIDA FUND FUND FUND FUND Net assets Class A $73,745,069 $123,330,196 $308,469,408 $69,627,374 Class B 12,112,600 10,056,744 52,891,594 12,560,817 Class C -- -- 29,188,582 -- - ------------------------------------------------------------------------------------------------------------------------------ Total net assets $85,857,669 $133,386,940 $390,549,584 $82,188,191 - ------------------------------------------------------------------------------------------------------------------------------ Shares of beneficial interest outstanding Class A 6,986,765 12,175,327 52,330,012 6,865,724 Class B 1,147,783 991,770 8,968,783 1,238,567 Class C -- -- 4,934,712 -- - ------------------------------------------------------------------------------------------------------------------------------ Total shares of beneficial interest outstanding 8,134,548 13,167,097 66,233,507 8,104,291 - ------------------------------------------------------------------------------------------------------------------------------ Class A shares Net asset value per share (net assets/shares of beneficial interest outstanding) $10.55 $10.13 $5.89 $10.14 - ------------------------------------------------------------------------------------------------------------------------------ Offering price per share (100/95.25Xnet asset value per share) $11.08 $10.64 $6.18 $10.65 - ------------------------------------------------------------------------------------------------------------------------------ Class B shares Net asset value and offering price per share (net assets/shares of beneficial interest outstanding) $10.55 $10.14 $5.90 $10.14 - ------------------------------------------------------------------------------------------------------------------------------ Class C shares Net asset value and offering price per share (net assets/shares of beneficial interest outstanding) $-- $-- $5.91 $-- - ------------------------------------------------------------------------------------------------------------------------------ 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 Statements of Assets and Liabilities (unaudited) - continued GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND ASSETS - -------------------------------------------------------------------------------------------------------------------------------- Investments - Identified cost $55,684,892 $125,076,913 $212,634,064 Unrealized appreciation (depreciation) 3,963,272 8,182,814 15,079,641 - -------------------------------------------------------------------------------------------------------------------------------- Total investments, at value $59,648,164 $133,259,727 $227,713,705 Cash 40,071 21,859 59,505 Receivable for investments sold -- 1,365,425 -- Receivable for fund shares sold 209,880 17,106 267,109 Interest receivable 1,013,752 1,769,931 3,446,616 Unrealized appreciation on interest rate swaps 48,475 108,631 354,986 Other assets 260 502 763 - -------------------------------------------------------------------------------------------------------------------------------- Total assets $60,960,602 $136,543,181 $231,842,684 - -------------------------------------------------------------------------------------------------------------------------------- LIABILITIES - -------------------------------------------------------------------------------------------------------------------------------- Distributions payable $67,996 $185,306 $376,879 Payable for fund shares reacquired 19,828 252,409 187,030 Unrealized depreciation on interest rate swaps 69,409 39,037 72,420 Payable to affiliates - Management fee 1,491 3,354 5,692 Shareholder servicing costs 1,422 2,584 17,740 Distribution and service fees 1,797 4,963 8,486 Administrative services fee 159 268 404 Payable for independent trustees' compensation 12,564 15,408 16,040 Accrued expenses and other liabilities 44,212 55,180 52,682 - -------------------------------------------------------------------------------------------------------------------------------- Total liabilities $218,878 $558,509 $737,373 - -------------------------------------------------------------------------------------------------------------------------------- Net assets $60,741,724 $135,984,672 $231,105,311 - -------------------------------------------------------------------------------------------------------------------------------- NET ASSETS CONSIST OF - -------------------------------------------------------------------------------------------------------------------------------- Paid-in capital $56,916,495 $127,554,834 $215,079,369 Unrealized appreciation (depreciation) on investments 3,942,338 8,252,408 15,362,207 Accumulated net realized gain (loss) on investments 15,328 400,377 948,522 Accumulated distributions in excess of net investment income (132,437) (222,947) (284,787) - -------------------------------------------------------------------------------------------------------------------------------- Net assets $60,741,724 $135,984,672 $231,105,311 - -------------------------------------------------------------------------------------------------------------------------------- Statements of Assets and Liabilities (unaudited) - continued GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND ASSETS - -------------------------------------------------------------------------------------------------------------------------------- Net assets Class A $51,723,083 $116,351,280 $196,529,812 Class B 9,018,641 19,633,392 34,575,499 - -------------------------------------------------------------------------------------------------------------------------------- Total net assets $60,741,724 $135,984,672 $231,105,311 - -------------------------------------------------------------------------------------------------------------------------------- Shares of beneficial interest outstanding Class A 4,735,036 10,229,926 17,339,429 Class B 822,645 1,727,153 3,045,673 - -------------------------------------------------------------------------------------------------------------------------------- Total shares of beneficial interest outstanding 5,557,681 11,957,079 20,385,102 - -------------------------------------------------------------------------------------------------------------------------------- Class A shares Net asset value per share (net assets/shares of beneficial interest outstanding) $10.92 $11.37 $11.33 - -------------------------------------------------------------------------------------------------------------------------------- Offering price per share (100/95.25Xnet asset value per share) $11.46 $11.94 $11.90 - -------------------------------------------------------------------------------------------------------------------------------- Class B shares Net asset value and offering price per share (net assets/shares of beneficial interest outstanding) $10.96 $11.37 $11.35 - -------------------------------------------------------------------------------------------------------------------------------- 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 and Class B shares. SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENTS OF OPERATIONS Six months ended 9/30/06 (unaudited) These statements describe how much each fund earned in investment income and accrued in expenses. They also describe any gains or losses generated by each fund's operations. ALABAMA ARKANSAS CALIFORNIA FLORIDA FUND FUND FUND FUND NET INVESTMENT INCOME - ------------------------------------------------------------------------------------------------------------------------------ Interest $2,245,288 $3,419,476 $10,072,786 $2,110,677 - ------------------------------------------------------------------------------------------------------------------------------ Expenses - Management fee $235,874 $364,091 $1,052,255 $228,398 Distribution and service fees 155,224 106,654 532,805 51,845 Shareholder servicing costs 57,572 82,882 235,222 53,564 Administrative services fee 12,071 16,383 39,456 11,821 Independent trustees' compensation 1,998 3,188 6,440 2,077 Custodian fee 17,106 20,724 51,815 20,976 Shareholder communications 3,911 6,809 19,420 4,482 Auditing fees 20,883 20,883 21,085 20,883 Legal fees 1,883 2,473 4,538 1,997 Miscellaneous 20,754 23,230 37,230 25,396 - ------------------------------------------------------------------------------------------------------------------------------ Total expenses $527,276 $647,317 $2,000,266 $421,439 - ------------------------------------------------------------------------------------------------------------------------------ Fees paid indirectly (3,964) (5,925) (14,309) (4,409) Reduction of expenses by investment adviser (107,435) (165,834) (479,274) (104,030) - ------------------------------------------------------------------------------------------------------------------------------ Net expenses $415,877 $475,558 $1,506,683 $313,000 - ------------------------------------------------------------------------------------------------------------------------------ Net investment income $1,829,411 $2,943,918 $8,566,103 $1,797,677 - ------------------------------------------------------------------------------------------------------------------------------ REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS - ------------------------------------------------------------------------------------------------------------------------------ Realized gain (loss) (identified cost basis) - Investment transactions $191,546 $(103,176) $359,647 $60,712 Swap transactions 676 151,156 (92,032) 53,468 - ------------------------------------------------------------------------------------------------------------------------------ Net realized gain (loss) on investments $192,222 $47,980 $267,615 $114,180 - ------------------------------------------------------------------------------------------------------------------------------ Change in unrealized appreciation (depreciation) - Investments $345,507 $1,033,268 $3,276,003 $747,021 Swap transactions 139,909 129,805 178,709 (162,037) - ------------------------------------------------------------------------------------------------------------------------------ Net unrealized gain (loss) on investments $485,416 $1,163,073 $3,454,712 $584,984 - ------------------------------------------------------------------------------------------------------------------------------ Net realized and unrealized gain (loss) on investments $677,638 $1,211,053 $3,722,327 $699,164 - ------------------------------------------------------------------------------------------------------------------------------ Change in net assets from operations $2,507,049 $4,154,971 $12,288,430 $2,496,841 - ------------------------------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS Statements of Operations (unaudited) - continued GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND NET INVESTMENT INCOME - ------------------------------------------------------------------------------------------------------------------------------ Interest $1,605,102 $3,596,311 $6,079,492 - ------------------------------------------------------------------------------------------------------------------------------ Expenses - Management fee $166,864 $371,814 $635,569 Distribution and service fees 110,905 303,215 520,782 Shareholder servicing costs 39,880 89,025 141,618 Administrative services fee 9,751 16,643 25,517 Independent trustees' compensation 1,960 3,456 6,127 Custodian fee 16,088 24,670 35,147 Shareholder communications 3,805 9,296 13,172 Auditing fees 20,918 20,883 21,085 Legal fees 1,645 2,368 3,347 Miscellaneous 22,980 24,702 29,092 - ------------------------------------------------------------------------------------------------------------------------------ Total expenses $394,796 $866,072 $1,431,456 - ------------------------------------------------------------------------------------------------------------------------------ Fees paid indirectly (3,297) (4,911) (8,472) Reduction of expenses by investment adviser (76,002) (169,352) (289,487) - ------------------------------------------------------------------------------------------------------------------------------ Net expenses $315,497 $691,809 $1,133,497 - ------------------------------------------------------------------------------------------------------------------------------ Net investment income $1,289,605 $2,904,502 $4,945,995 - ------------------------------------------------------------------------------------------------------------------------------ REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS - ------------------------------------------------------------------------------------------------------------------------------ Realized gain (loss) (identified cost basis) - Investment transactions $47,599 $201,841 $440,811 Swap transactions 35,225 123,128 61,644 - ------------------------------------------------------------------------------------------------------------------------------ Net realized gain (loss) on investments $82,824 $324,969 $502,455 - ------------------------------------------------------------------------------------------------------------------------------ Change in unrealized appreciation (depreciation) - Investments $617,388 $896,397 $1,425,886 Swap transactions (87,415) (42,686) 151,130 - ------------------------------------------------------------------------------------------------------------------------------ Net unrealized gain (loss) on investments $529,973 $853,711 $1,577,016 - ------------------------------------------------------------------------------------------------------------------------------ Net realized and unrealized gain (loss) on investments $612,797 $1,178,680 $2,079,471 - ------------------------------------------------------------------------------------------------------------------------------ Change in net assets from operations $1,902,402 $4,083,182 $7,025,466 - ------------------------------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENTS OF CHANGES IN NET ASSETS (unaudited) These statements describe the increases and/or decreases in net assets resulting from operations, any distributions, and any shareholder transactions. ALABAMA ARKANSAS CALIFORNIA FLORIDA FUND FUND FUND FUND SIX MONTHS ENDED 9/30/06 CHANGE IN NET ASSETS OPERATIONS - ------------------------------------------------------------------------------------------------------------------------------ Net investment income $1,829,411 $2,943,918 $8,566,103 $1,797,677 Net realized gain (loss) on investments 192,222 47,980 267,615 114,180 Net unrealized gain (loss) on investments 485,416 1,163,073 3,454,712 584,984 - ------------------------------------------------------------------------------------------------------------------------------ Change in net assets from operations $2,507,049 $4,154,971 $12,288,430 $2,496,841 - ------------------------------------------------------------------------------------------------------------------------------ DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------------ From net investment income Class A $(1,587,622) $(2,742,674) $(6,818,133) $(1,542,182) Class B (230,929) (196,790) (1,060,605) (250,427) Class C -- -- (538,760) -- - ------------------------------------------------------------------------------------------------------------------------------ Total distributions declared to shareholders $(1,818,551) $(2,939,464) $(8,417,498) $(1,792,609) - ------------------------------------------------------------------------------------------------------------------------------ Change in net assets from fund share transactions $(2,477,711) $(544,014) $6,804,363 $(3,888,160) - ------------------------------------------------------------------------------------------------------------------------------ Total change in net assets $(1,789,213) $671,493 $10,675,295 $(3,183,928) - ------------------------------------------------------------------------------------------------------------------------------ NET ASSETS - ------------------------------------------------------------------------------------------------------------------------------ At beginning of period 87,646,882 132,715,447 379,874,289 85,372,119 At end of period $85,857,669 $133,386,940 $390,549,584 $82,188,191 - ------------------------------------------------------------------------------------------------------------------------------ Accumulated undistributed (distributions in excess of) net investment income $(147,322) $76,397 $(453,135) $(96,397) - ------------------------------------------------------------------------------------------------------------------------------ GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND SIX MONTHS ENDED 9/30/06 CHANGE IN NET ASSETS OPERATIONS - ------------------------------------------------------------------------------------------------------------------------------ Net investment income $1,289,605 $2,904,502 $4,945,995 Net realized gain (loss) on investments 82,824 324,969 502,455 Net unrealized gain (loss) on investments 529,973 853,711 1,577,016 - ------------------------------------------------------------------------------------------------------------------------------ Change in net assets from operations $1,902,402 $4,083,182 $7,025,466 - ------------------------------------------------------------------------------------------------------------------------------ DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------------ From net investment income Class A $(1,085,057) $(2,480,447) $(4,115,425) Class B (162,780) (376,653) (638,098) - ------------------------------------------------------------------------------------------------------------------------------ Total distributions declared to shareholders $(1,247,837) $(2,857,100) $(4,753,523) - ------------------------------------------------------------------------------------------------------------------------------ Change in net assets from fund share transactions $(1,409,254) $(1,558,670) $(5,082,261) - ------------------------------------------------------------------------------------------------------------------------------ Total change in net assets $(754,689) $(332,588) $(2,810,318) - ------------------------------------------------------------------------------------------------------------------------------ NET ASSETS - ------------------------------------------------------------------------------------------------------------------------------ At beginning of period 61,496,413 136,317,260 233,915,629 At end of period $60,741,724 $135,984,672 $231,105,311 - ------------------------------------------------------------------------------------------------------------------------------ Accumulated distributions in excess of net investment income $(132,437) $(222,947) $(284,787) - ------------------------------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS Statements of Changes in Net Assets - continued ALABAMA ARKANSAS CALIFORNIA FLORIDA FUND FUND FUND FUND YEAR ENDED 3/31/06 CHANGE IN NET ASSETS OPERATIONS - ------------------------------------------------------------------------------------------------------------------------------ Net investment income $3,884,000 $6,060,009 $17,491,686 $3,752,067 Net realized gain (loss) on investments 232,548 517,963 (1,179,180) 799,247 Net unrealized gain (loss) on investments (1,578,587) (2,311,453) (1,069,351) (1,123,082) - ------------------------------------------------------------------------------------------------------------------------------ Change in net assets from operations $2,537,961 $4,266,519 $15,243,155 $3,428,232 - ------------------------------------------------------------------------------------------------------------------------------ DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------------ From net investment income Class A $(3,354,087) $(5,605,194) $(13,643,612) $(3,110,488) Class B (517,644) (401,413) (2,512,572) (644,130) Class C -- -- (1,210,439) -- From net realized gain on investments Class A -- -- (498,302) -- Class B -- -- (106,987) -- Class C -- -- (52,867) -- - ------------------------------------------------------------------------------------------------------------------------------ Total distributions declared to shareholders $(3,871,731) $(6,006,607) $(18,024,779) $(3,754,618) - ------------------------------------------------------------------------------------------------------------------------------ Change in net assets from fund share transactions $(3,636,892) $(3,878,943) $(14,978,975) $(1,765,570) - ------------------------------------------------------------------------------------------------------------------------------ Total change in net assets $(4,970,662) $(5,619,031) $(17,760,599) $(2,091,956) - ------------------------------------------------------------------------------------------------------------------------------ NET ASSETS - ------------------------------------------------------------------------------------------------------------------------------ At beginning of period 92,617,544 138,334,478 397,634,888 87,464,075 At end of period $87,646,882 $132,715,447 $379,874,289 $85,372,119 - ------------------------------------------------------------------------------------------------------------------------------ Accumulated undistributed (distributions in excess of) net investment income $(158,182) $71,943 $(601,740) $(101,465) - ------------------------------------------------------------------------------------------------------------------------------ GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND YEAR ENDED 3/31/06 CHANGE IN NET ASSETS OPERATIONS - ------------------------------------------------------------------------------------------------------------------------------ Net investment income $2,710,686 $6,200,729 $10,103,339 Net realized gain (loss) on investments 104,934 639,411 1,768,389 Net unrealized gain (loss) on investments (1,168,516) (2,628,342) (2,752,976) - ------------------------------------------------------------------------------------------------------------------------------ Change in net assets from operations $1,647,104 $4,211,798 $9,118,752 - ------------------------------------------------------------------------------------------------------------------------------ DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------------ From net investment income Class A $(2,297,243) $(5,277,930) $(8,657,757) Class B (404,404) (856,271) (1,391,165) From net realized gain on investments Class A -- (725,708) (709,997) Class B -- (137,622) (137,074) - ------------------------------------------------------------------------------------------------------------------------------ Total distributions declared to shareholders $(2,701,647) $(6,997,531) $(10,895,993) - ------------------------------------------------------------------------------------------------------------------------------ Change in net assets from fund share transactions $(3,918,543) $(10,873,307) $(15,175,916) - ------------------------------------------------------------------------------------------------------------------------------ Total change in net assets $(4,973,086) $(13,659,040) $(16,953,157) - ------------------------------------------------------------------------------------------------------------------------------ NET ASSETS - ------------------------------------------------------------------------------------------------------------------------------ At beginning of period 66,469,499 149,976,300 250,868,786 At end of period $61,496,413 $136,317,260 $233,915,629 - ------------------------------------------------------------------------------------------------------------------------------ Accumulated distributions in excess of net investment income $(174,205) $(270,349) $(477,259) - ------------------------------------------------------------------------------------------------------------------------------ SEE NOTES TO FINANCIAL STATEMENTS Financial Statements FINANCIAL HIGHLIGHTS MFS(R) ALABAMA MUNICIPAL BOND FUND The financial highlights table is intended to help you understand the fund's financial performance for the semiannual period and the past 5 fiscal years. Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of all distributions) held for the entire period. SIX MONTHS YEARS ENDED 3/31 ENDED ----------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS A (UNAUDITED) Net asset value, beginning of period $10.47 $10.62 $10.88 $10.82 $10.31 $10.53 - --------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.23 $0.46 $0.48 $0.48 $0.48 $0.51 Net realized and unrealized gain (loss) on investments 0.08 (0.15) (0.22) 0.06 0.54 (0.19) - --------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.31 $0.31 $0.26 $0.54 $1.02 $0.32 - --------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.23) $(0.46) $(0.48) $(0.48) $(0.50) $(0.54) From net realized gain on investments -- -- (0.04) -- (0.01) -- - --------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.23) $(0.46) $(0.52) $(0.48) $(0.51) $(0.54) - --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $10.55 $10.47 $10.62 $10.88 $10.82 $10.31 - --------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.98(n) 2.97 2.40 5.11 10.06 3.05 - --------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.12(a) 1.12 1.09 1.09 1.08 1.08 Expenses after expense reductions (f) 0.87(a) 0.87 0.84 0.88 0.88 0.88 Net investment income 4.38(a) 4.37 4.46 4.38 4.49 4.87 Portfolio turnover 5 9 17 10 21 20 Net assets at end of period (000 Omitted) $73,745 $74,204 $77,499 $80,704 $84,474 $83,146 - --------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) ALABAMA MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED ------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS B (UNAUDITED) Net asset value, beginning of period $10.47 $10.62 $10.88 $10.82 $10.31 $10.53 - --------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.19 $0.38 $0.40 $0.39 $0.40 $0.43 Net realized and unrealized gain (loss) on investments 0.08 (0.15) (0.23) 0.07 0.54 (0.19) - --------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.27 $0.23 $0.17 $0.46 $0.94 $0.24 - --------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.19) $(0.38) $(0.39) $(0.40) $(0.42) $(0.46) From net realized gain on investments -- -- (0.04) -- (0.01) -- - --------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.19) $(0.38) $(0.43) $(0.40) $(0.43) $(0.46) - --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $10.55 $10.47 $10.62 $10.88 $10.82 $10.31 - --------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.60(n) 2.20 1.63 4.32 9.14 2.38 - --------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.87(a) 1.87 1.84 1.83 1.83 1.83 Expenses after expense reductions (f) 1.62(a) 1.62 1.59 1.63 1.63 1.63 Net investment income 3.63(a) 3.61 3.71 3.63 3.74 4.09 Portfolio turnover 5 9 17 10 21 20 Net assets at end of period (000 Omitted) $12,113 $13,443 $15,118 $17,339 $16,163 $13,579 - --------------------------------------------------------------------------------------------------------------------------------- (a) Annualized. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (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 Financial Highlights - continued MFS(R) ARKANSAS MUNICIPAL BOND FUND The financial highlights table is intended to help you understand the fund's financial performance for the semiannual period and the past 5 fiscal years. Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of all distributions) held for the entire period. SIX MONTHS YEARS ENDED 3/31 ENDED ------------------------------------------------------------ 9/30/06 2006 2005 2004 2003 2002 CLASS A (UNAUDITED) Net asset value, beginning of period $10.04 $10.17 $10.41 $10.40 $9.97 $10.08 - --------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.23 $0.45 $0.45 $0.45 $0.47 $0.51 Net realized and unrealized gain (loss) on investments 0.09 (0.13) (0.23) 0.01 0.46 (0.11) - --------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.32 $0.32 $0.22 $0.46 $0.93 $0.40 - --------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.23) $(0.45) $(0.46) $(0.45) $(0.50) $(0.51) - --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $10.13 $10.04 $10.17 $10.41 $10.40 $9.97 - --------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 3.19(n) 3.17 2.14 4.53 9.51 4.06 - --------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 0.92(a) 0.92 0.90 0.92 0.93 0.92 Expenses after expense reductions (f) 0.67(a) 0.67 0.65 0.72 0.73 0.72 Net investment income 4.51(a) 4.45 4.47 4.31 4.59 5.05 Portfolio turnover 7 10 13 19 15 15 Net assets at end of period (000 Omitted) $123,330 $122,067 $127,075 $139,333 $134,521 $119,328 - --------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) ARKANSAS MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED ----------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS B (UNAUDITED) Net asset value, beginning of period $10.05 $10.18 $10.42 $10.41 $9.98 $10.09 - --------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.19 $0.38 $0.38 $0.37 $0.39 $0.43 Net realized and unrealized gain (loss) on investments 0.09 (0.14) (0.24) 0.01 0.46 (0.11) - --------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.28 $0.24 $0.14 $0.38 $0.85 $0.32 - --------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.19) $(0.37) $(0.38) $(0.37) $(0.42) $(0.43) - --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $10.14 $10.05 $10.18 $10.42 $10.41 $9.98 - --------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.80(n) 2.39 1.37 3.68 8.62 3.24 - --------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.69(a) 1.69 1.66 1.73 1.74 1.70 Expenses after expense reductions (f) 1.43(a) 1.44 1.41 1.53 1.54 1.50 Net investment income 3.74(a) 3.68 3.71 3.50 3.77 4.26 Portfolio turnover 7 10 13 19 15 15 Net assets at end of period (000 Omitted) $10,057 $10,648 $11,259 $12,554 $12,049 $8,700 - --------------------------------------------------------------------------------------------------------------------------------- Any redemption fees charged by the fund during the 2005 fiscal year resulted in a per share impact of less than $0.01. (a) Annualized. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (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 Financial Highlights - continued MFS(R) CALIFORNIA MUNICIPAL BOND FUND The financial highlights table is intended to help you understand the fund's financial performance for the semiannual period and the past 5 fiscal years. Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of all distributions) held for the entire period. SIX MONTHS YEARS ENDED 3/31 ENDED ------------------------------------------------------------ 9/30/06 2006 2005 2004 2003 2002 CLASS A (UNAUDITED) Net asset value, beginning of period $5.84 $5.88 $5.98 $5.96 $5.70 $5.81 - --------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.14 $0.28 $0.29 $0.28 $0.28 $0.28 Net realized and unrealized gain (loss) on investments 0.04 (0.03) (0.11) 0.02 0.27 (0.10) - --------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.18 $0.25 $0.18 $0.30 $0.55 $0.18 - --------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.13) $(0.28) $(0.28) $(0.28) $(0.29) $(0.29) From net realized gain on investments -- (0.01) -- -- -- -- - --------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.13) $(0.29) $(0.28) $(0.28) $(0.29) $(0.29) - --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $5.89 $5.84 $5.88 $5.98 $5.96 $5.70 - --------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 3.19(n) 4.22 3.14 5.22 9.79 3.11 - --------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 0.87(a) 0.88 0.86 0.87 0.87 0.87 Expenses after expense reductions (f) 0.62(a) 0.63 0.61 0.67 0.67 0.67 Net investment income 4.65(a) 4.69 4.91 4.71 4.73 4.87 Portfolio turnover 8 9 12 8 22 12 Net assets at end of period (000 Omitted) $308,469 $291,656 $295,332 $314,108 $333,350 $305,699 - --------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) CALIFORNIA MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED ----------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS B (UNAUDITED) Net asset value, beginning of period $5.84 $5.88 $5.98 $5.96 $5.70 $5.81 - --------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.11 $0.23 $0.25 $0.23 $0.23 $0.24 Net realized and unrealized gain (loss) on investments 0.06 (0.03) (0.11) 0.03 0.27 (0.11) - --------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.17 $0.20 $0.14 $0.26 $0.50 $0.13 - --------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.11) $(0.23) $(0.24) $(0.24) $(0.24) $(0.24) From net realized gain on investments -- (0.01) -- -- -- -- - --------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.11) $(0.24) $(0.24) $(0.24) $(0.24) $(0.24) - --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $5.90 $5.84 $5.88 $5.98 $5.96 $5.70 - --------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.98(n) 3.44 2.38 4.38 8.93 2.30 - --------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.63(a) 1.64 1.59 1.67 1.66 1.65 Expenses after expense reductions (f) 1.38(a) 1.39 1.34 1.47 1.46 1.45 Net investment income 3.91(a) 3.94 4.17 3.91 3.94 4.09 Portfolio turnover 8 9 12 8 22 12 Net assets at end of period (000 Omitted) $52,892 $58,338 $69,142 $85,106 $98,888 $84,123 - --------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) CALIFORNIA MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED ----------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS C (UNAUDITED) Net asset value, beginning of period $5.86 $5.90 $6.00 $5.98 $5.72 $5.83 - --------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.11 $0.23 $0.24 $0.23 $0.23 $0.23 Net realized and unrealized gain (loss) on investments 0.05 (0.04) (0.11) 0.02 0.27 (0.10) - --------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.16 $0.19 $0.13 $0.25 $0.50 $0.13 - --------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.11) $(0.22) $(0.23) $(0.23) $(0.24) $(0.24) From net realized gain on investments -- (0.01) -- -- -- -- - --------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.11) $(0.23) $(0.23) $(0.23) $(0.24) $(0.24) - --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $5.91 $5.86 $5.90 $6.00 $5.98 $5.72 - --------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.73(n) 3.29 2.22 4.27 8.78 2.17 - --------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.77(a) 1.78 1.76 1.77 1.77 1.77 Expenses after expense reductions (f) 1.52(a) 1.53 1.51 1.56 1.57 1.57 Net investment income 3.76(a) 3.79 4.01 3.81 3.83 3.97 Portfolio turnover 8 9 12 8 22 12 Net assets at end of period (000 Omitted) $29,189 $29,880 $33,162 $36,363 $40,804 $35,022 - --------------------------------------------------------------------------------------------------------------------------------- Any redemption fees charged by the fund during the 2005 fiscal year resulted in a per share impact of less than $0.01. (a) Annualized. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (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 Financial Highlights - continued MFS(R) FLORIDA MUNICIPAL BOND FUND The financial highlights table is intended to help you understand the fund's financial performance for the semiannual period and the past 5 fiscal years. Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of all distributions) held for the entire period. SIX MONTHS YEARS ENDED 3/31 ENDED ----------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS A (UNAUDITED) Net asset value, beginning of period $10.05 $10.09 $10.24 $10.19 $9.78 $9.95 - --------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.22 $0.45 $0.47 $0.47 $0.48 $0.50 Net realized and unrealized gain (loss) on investments 0.09 (0.04) (0.15) 0.05 0.44 (0.16) - --------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.31 $0.41 $0.32 $0.52 $0.92 $0.34 - --------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.22) $(0.45) $(0.47) $(0.47) $(0.51) $(0.51) - --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $10.14 $10.05 $10.09 $10.24 $10.19 $9.78 - --------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 3.16(n) 4.14 3.25 5.20 9.40 3.52 - --------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 0.89(a) 0.89 0.82 0.85 0.82 0.83 Expenses after expense reductions (f) 0.64(a) 0.64 0.57 0.64 0.62 0.63 Net investment income 4.45(a) 4.46 4.68 4.58 4.78 5.09 Portfolio turnover 4 17 18 31 27 16 Net assets at end of period (000 Omitted) $69,627 $70,402 $69,082 $79,155 $86,045 $69,959 - --------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) FLORIDA MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED ----------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS B (UNAUDITED) Net asset value, beginning of period $10.05 $10.09 $10.24 $10.19 $9.78 $9.95 - --------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.19 $0.38 $0.40 $0.39 $0.40 $0.43 Net realized and unrealized gain (loss) on investments 0.09 (0.04) (0.16) 0.05 0.43 (0.17) - --------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.28 $0.34 $0.24 $0.44 $0.83 $0.26 - --------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.19) $(0.38) $(0.39) $(0.39) $(0.42) $(0.43) - --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $10.14 $10.05 $10.09 $10.24 $10.19 $9.78 - --------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.77(n) 3.35 2.45 4.36 8.64 2.58 - --------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.65(a) 1.65 1.59 1.64 1.62 1.63 Expenses after expense reductions (f) 1.40(a) 1.40 1.34 1.44 1.42 1.43 Net investment income 3.70(a) 3.70 3.92 3.78 3.97 4.29 Portfolio turnover 4 17 18 31 27 16 Net assets at end of period (000 Omitted) $12,561 $14,970 $18,382 $22,312 $25,175 $22,151 - --------------------------------------------------------------------------------------------------------------------------------- (a) Annualized. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (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 Financial Highlights - continued MFS(R) GEORGIA MUNICIPAL BOND FUND The financial highlights table is intended to help you understand the fund's financial performance for the semiannual period and the past 5 fiscal years. Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of all distributions) held for the entire period. SIX MONTHS YEARS ENDED 3/31 ENDED ----------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS A (UNAUDITED) Net asset value, beginning of period $10.80 $10.99 $11.22 $11.17 $10.63 $10.82 - --------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.24 $0.46 $0.48 $0.49 $0.49 $0.50 Net realized and unrealized gain (loss) on investments 0.11 (0.18) (0.23) 0.05 0.55 (0.17) - --------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.35 $0.28 $0.25 $0.54 $1.04 $0.33 - --------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.23) $(0.47) $(0.48) $(0.49) $(0.50) $(0.52) - --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $10.92 $10.80 $10.99 $11.22 $11.17 $10.63 - --------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 3.27(n) 2.53 2.27 4.93 9.97 3.03 - --------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.19(a) 1.18 1.13 1.12 1.12 1.13 Expenses after expense reductions (f) 0.94(a) 0.93 0.88 0.91 0.92 0.93 Net investment income 4.37(a) 4.22 4.35 4.35 4.43 4.67 Portfolio turnover 2 5 18 12 25 19 Net assets at end of period (000 Omitted) $51,723 $51,681 $53,190 $55,659 $57,636 $54,179 - --------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) GEORGIA MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED ----------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS B (UNAUDITED) Net asset value, beginning of period $10.84 $11.00 $11.23 $11.18 $10.64 $10.83 - --------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.20 $0.41 $0.40 $0.40 $0.40 $0.42 Net realized and unrealized gain (loss) on investments 0.11 (0.18) (0.24) 0.06 0.56 (0.18) - --------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.31 $0.23 $0.16 $0.46 $0.96 $0.24 - --------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.19) $(0.39) $(0.39) $(0.41) $(0.42) $(0.43) - --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $10.96 $10.84 $11.00 $11.23 $11.18 $10.64 - --------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.88(n) 2.05 1.51 4.15 9.15 2.26 - --------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.94(a) 1.93 1.88 1.86 1.87 1.88 Expenses after expense reductions (f) 1.69(a) 1.68 1.63 1.66 1.67 1.68 Net investment income 3.62(a) 3.72 3.60 3.60 3.68 3.91 Portfolio turnover 2 5 18 12 25 19 Net assets at end of period (000 Omitted) $9,019 $9,816 $13,280 $16,759 $18,077 $16,031 - --------------------------------------------------------------------------------------------------------------------------------- Any redemption fees charged by the fund during the 2005 fiscal year resulted in a per share impact of less than $0.01. (a) Annualized. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (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 Financial Highlights - continued MFS(R) MARYLAND MUNICIPAL BOND FUND The financial highlights table is intended to help you understand the fund's financial performance for the semiannual period and the past 5 fiscal years. Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of all distributions) held for the entire period. SIX MONTHS YEARS ENDED 3/31 ENDED ------------------------------------------------------------ 9/30/06 2006 2005 2004 2003 2002 CLASS A (UNAUDITED) Net asset value, beginning of period $11.27 $11.49 $11.74 $11.69 $11.21 $11.35 - --------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.25 $0.50 $0.52 $0.51 $0.52 $0.54 Net realized and unrealized gain (loss) on investments 0.09 (0.15) (0.25) 0.06 0.50 (0.14) - --------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.34 $0.35 $0.27 $0.57 $1.02 $0.40 - --------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.24) $(0.50) $(0.51) $(0.52) $(0.54) $(0.54) From net realized gain on investments -- (0.07) (0.01) -- -- -- - --------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.24) $(0.57) $(0.52) $(0.52) $(0.54) $(0.54) - --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $11.37 $11.27 $11.49 $11.74 $11.69 $11.21 - --------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 3.09(n) 3.06 2.36 4.96 9.21 3.59 - --------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.18(a) 1.19 1.14 1.17 1.15 1.15 Expenses after expense reductions (f) 0.93(a) 0.94 0.89 0.96 0.95 0.95 Net investment income 4.39(a) 4.38 4.48 4.35 4.51 4.73 Portfolio turnover 11 9 12 21 12 8 Net assets at end of period (000 Omitted) $116,351 $115,307 $124,261 $138,201 $138,666 $128,750 - --------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) MARYLAND MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED ----------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS B (UNAUDITED) Net asset value, beginning of period $11.26 $11.49 $11.74 $11.68 $11.20 $11.34 - --------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.21 $0.43 $0.44 $0.43 $0.45 $0.46 Net realized and unrealized gain (loss) on investments 0.11 (0.17) (0.25) 0.07 0.49 (0.13) - --------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.32 $0.26 $0.19 $0.50 $0.94 $0.33 - --------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.21) $(0.42) $(0.44) $(0.44) $(0.46) $(0.47) From net realized gain on investments -- (0.07) (0.00)(w) -- -- -- - --------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.21) $(0.49) $(0.44) $(0.44) $(0.46) $(0.47) - --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $11.37 $11.26 $11.49 $11.74 $11.68 $11.20 - --------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.85(n) 2.30 1.69 4.37 8.52 2.92 - --------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.83(a) 1.84 1.79 1.81 1.80 1.80 Expenses after expense reductions (f) 1.58(a) 1.59 1.54 1.61 1.60 1.60 Net investment income 3.75(a) 3.72 3.83 3.70 3.86 4.08 Portfolio turnover 11 9 12 21 12 8 Net assets at end of period (000 Omitted) $19,633 $21,011 $25,716 $31,697 $34,033 $31,542 - --------------------------------------------------------------------------------------------------------------------------------- (a) Annualized. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (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 Financial Highlights - continued MFS(R) MASSACHUSETTS MUNICIPAL BOND FUND The financial highlights table is intended to help you understand the fund's financial performance for the semiannual period and the past 5 fiscal years. Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of all distributions) held for the entire period. SIX MONTHS YEARS ENDED 3/31 ENDED ------------------------------------------------------------ 9/30/06 2006 2005 2004 2003 2002 CLASS A (UNAUDITED) Net asset value, beginning of period $11.22 $11.31 $11.52 $11.49 $10.90 $11.11 - --------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.25 $0.48 $0.51 $0.51 $0.52 $0.53 Net realized and unrealized gain (loss) on investments 0.10 (0.05) (0.22) 0.03 0.60 (0.21) - --------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.35 $0.43 $0.29 $0.54 $1.12 $0.32 - --------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.24) $(0.48) $(0.50) $(0.51) $(0.53) $(0.53) From net realized gain on investments -- (0.04) -- -- -- -- - --------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.24) $(0.52) $(0.50) $(0.51) $(0.53) $(0.53) - --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $11.33 $11.22 $11.31 $11.52 $11.49 $10.90 - --------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 3.13(n) 3.83 2.63 4.82 10.42 2.93 - --------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.14(a) 1.15 1.09 1.16 1.12 1.12 Expenses after expense reductions (f) 0.89(a) 0.90 0.84 0.95 0.92 0.92 Net investment income 4.38(a) 4.23 4.48 4.39 4.56 4.73 Portfolio turnover 2 10 11 14 15 13 Net assets at end of period (000 Omitted) $196,530 $196,992 $210,103 $224,923 $233,500 $210,269 - --------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) MASSACHUSETTS MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED ------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS B (UNAUDITED) Net asset value, beginning of period $11.24 $11.33 $11.54 $11.51 $10.92 $11.12 - --------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - --------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.21 $0.41 $0.43 $0.43 $0.44 $0.46 Net realized and unrealized gain (loss) on investments 0.10 (0.05) (0.21) 0.04 0.60 (0.20) - --------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.31 $0.36 $0.22 $0.47 $1.04 $0.26 - --------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - --------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.20) $(0.41) $(0.43) $(0.44) $(0.45) $(0.46) From net realized gain on investments -- (0.04) -- -- -- -- - --------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.20) $(0.45) $(0.43) $(0.44) $(0.45) $(0.46) - --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $11.35 $11.24 $11.33 $11.54 $11.51 $10.92 - --------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.80(n) 3.16 1.97 4.14 9.69 2.35 - --------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - --------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.79(a) 1.80 1.74 1.80 1.77 1.77 Expenses after expense reductions (f) 1.54(a) 1.55 1.49 1.60 1.57 1.57 Net investment income 3.73(a) 3.58 3.83 3.74 3.91 4.13 Portfolio turnover 2 10 11 14 15 13 Net assets at end of period (000 Omitted) $34,575 $36,924 $40,766 $46,253 $47,612 $37,487 - --------------------------------------------------------------------------------------------------------------------------------- Any redemption fees charged by the fund during the 2005 fiscal year resulted in a per share impact of less than $0.01. (a) Annualized. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (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 (unaudited) (1) BUSINESS AND ORGANIZATION MFS Alabama Municipal Bond Fund (Alabama Fund), MFS Arkansas Municipal Bond Fund (Arkansas Fund), MFS California Municipal Bond Fund (California Fund), MFS Florida Municipal Bond Fund (Florida Fund), MFS Georgia Municipal Bond Fund (Georgia Fund), MFS Maryland Municipal Bond Fund (Maryland Fund), and MFS Massachusetts Municipal Bond Fund (Massachusetts Fund) are each a series of MFS Municipal Series Trust (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. Because each fund invests primarily in the securities of a single state and its political subdivisions, each fund is vulnerable to the effects of changes in the legal and economic environment of the particular state. Municipal securities backed by current or anticipated revenues from a specific project or specific assets can be negatively affected by the discontinuance of the taxation supporting the projects or assets or the inability to collect revenues for the project or from the assets. If the Internal Revenue Service determines an issuer of a municipal security has not complied with applicable tax requirements, the security could decline in value, interest from the security could become taxable and the fund may be required to issue Forms 1099-DIV. INVESTMENT VALUATIONS - Debt instruments (other than short-term instruments), including restricted debt instruments, are generally valued at an evaluated or composite bid as reported by an independent pricing service. Values of debt instruments 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. Short-term instruments with a maturity at issuance of 60 days or less may be valued at amortized cost, which approximates market value. Swaps are generally valued at a broker-dealer bid quotation. 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 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 each fund's valuation policies and procedures, market quotations are not considered to be readily available for many types of debt instruments. These investments are generally valued at fair value based on information from independent pricing services. 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 each 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 each 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 each fund, and believes the impact will be limited to expanded disclosures resulting from the adoption of this Statement on each fund's financial statements. DERIVATIVE RISK - Each 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 funds use 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 swap agreements. SWAP AGREEMENTS - Each fund may enter into swap agreements. A swap is an exchange of cash payments between the fund and another party. Net cash payments are exchanged at specified intervals and are recorded as a realized gain or loss in the Statement of Operations. The value of the swap is adjusted daily and the change in value, including accruals of periodic amounts of interest to be paid or received, is recorded as unrealized appreciation or depreciation in the Statement of Operations. A liquidation payment received or made upon early termination is recorded as a realized gain or loss in the Statement of Operations. Collateral, in the form of cash or securities, may be required to be held in segregated accounts with the fund's custodian in connection with these agreements. Risk of loss may exceed amounts recognized on the Statement of Assets and Liabilities. These risks include the possible lack of a liquid market, failure of the counterparty to perform under the terms of the agreements, and unfavorable market movement of the underlying instrument. All swap agreements entered into by each fund with the same counterparty are generally governed by a single master agreement, which provides for the netting of all amounts owed by the parties under the agreement upon the occurrence of an event of default, thereby reducing the credit risk to which such party is exposed. INTEREST RATE SWAP AGREEMENTS - Interest rate swap agreements involve the periodic exchange of cash flows, such as the exchange of fixed rate interest payments for floating rate interest payments based on a notional principal amount. The interest rates may be based on a specific financial index or the exchange of two distinct floating rate payments. Each fund may enter into an interest rate swap in order to manage its exposure to interest fluctuations. INDEMNIFICATIONS - Under each 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 each fund. Additionally, in the normal course of business, each fund enters into agreements with service providers that may contain indemnification clauses. Each fund's maximum exposure under these agreements is unknown as this would involve future claims that may be made against each 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 in accordance with U.S. generally accepted accounting principles. All premium and original issue discount is amortized or accreted for tax reporting purposes as required by federal income tax regulations. Each fund may receive proceeds from litigation settlements involving its portfolio holdings. Any proceeds received are reflected in realized gain/loss in the Statement of Operations, or in unrealized gain/loss if the security is still held by the fund. Legal fees and other related expenses incurred to preserve and protect the value of a security owned are added to the cost of the security; other legal fees are expensed. Capital infusions made directly to the security issuer, which are generally non-recurring, incurred to protect or enhance the value of high-yield debt securities, are reported as additions to the cost basis of the security. Costs that are incurred to negotiate the terms or conditions of capital infusions or that are expected to result in a plan of reorganization are reported as realized losses. Ongoing costs incurred to protect or enhance an investment, or costs incurred to pursue other claims or legal actions, are expensed. FEES PAID INDIRECTLY - Each fund's custody fee is reduced according to an arrangement that measures the value of cash deposited with the custodian by each fund. This amount, for the six months ended September 30, 2006, is shown as a reduction of total expenses on the Statement of Operations. TAX MATTERS AND DISTRIBUTIONS - Each 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 and tax-exempt income, including realized capital gains. Accordingly, no provision for federal income tax is required in the 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 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 expiration of capital loss carryforwards, amortization and accretion of debt securities, defaulted bonds, and treating a portion of the proceeds from redemptions as a distribution for tax purposes. The tax character of distributions made during the current period will be determined at fiscal year end. The tax character of distributions declared to shareholders is as follows: ALABAMA ARKANSAS CALIFORNIA FLORIDA GEORGIA MARYLAND MASSACHUSETTS YEAR ENDED 3/31/06 FUND FUND FUND FUND FUND FUND FUND Ordinary income (including any short-term capital gains) $-- $-- $-- $49,709 $-- $-- $-- Tax-exempt income 3,871,731 6,006,607 17,366,623 3,704,909 2,701,647 6,134,201 10,048,922 Long-term capital gain -- -- 658,156 -- -- 863,330 847,071 - ------------------------------------------------------------------------------------------------------------------------------------ Total distributions $3,871,731 $6,006,607 $18,024,779 $3,754,618 $2,701,647 $6,997,531 $10,895,993 YEAR ENDED 3/31/05 Ordinary income (including any short-term capital gains) $63,872 $214,789 $55,853 $-- $-- $70,072 $252,507 Tax-exempt income 4,028,102 5,977,001 18,783,159 4,058,369 2,840,491 6,753,147 10,888,037 Long-term capital gain 326,164 -- -- -- -- 60,248 -- - ------------------------------------------------------------------------------------------------------------------------------------ Total distributions $4,418,138 $6,191,790 $18,839,012 $4,058,369 $2,840,491 $6,883,467 $11,140,544 The federal tax cost and the tax basis components of distributable earnings were as follows: ALABAMA ARKANSAS CALIFORNIA FLORIDA GEORGIA MARYLAND MASSACHUSETTS AS OF 9/30/06 FUND FUND FUND FUND FUND FUND FUND Cost of investments $79,819,746 $122,473,557 $360,916,083 $75,857,137 $55,652,424 $124,986,211 $212,450,907 - ----------------------------------------------------------------------------------------------------------------------------------- Gross appreciation $4,986,431 $8,135,792 $23,076,117 $4,356,117 $3,995,740 $8,287,532 $15,335,218 Gross depreciation (375,250) (2,431) (28,814) (116,990) -- (14,016) (72,420) - ----------------------------------------------------------------------------------------------------------------------------------- Net unrealized appreciation (depreciation) $4,611,181 $8,133,361 $23,047,303 $4,239,127 $3,995,740 $8,273,516 $15,262,798 AS OF 3/31/06 Undistributed ordinary income -- -- -- -- -- -- 372,024 Undistributed tax-exempt income 282,450 570,738 818,897 214,900 53,805 227,456 339,371 Undistributed long-term capital gain 140,902 -- -- -- -- -- -- Capital loss carryforwards -- (501,285) (1,402,103) (264,149) (66,666) -- -- Post-October capital loss deferral -- -- -- -- -- -- (18,421) Other temporary differences (396,268) (407,289) (1,424,420) (237,092) (161,833) (386,437) (686,714) Net unrealized appreciation (depreciation) 4,260,151 7,093,329 19,743,330 3,494,418 3,345,358 7,362,737 13,747,739 The aggregate cost above includes prior fiscal year end tax adjustments. As of March 31, 2006, certain funds had capital loss carryforwards available to offset future realized gains. Such losses expire as follows: ARKANSAS CALIFORNIA FLORIDA GEORGIA EXPIRATION DATE FUND FUND FUND FUND 3/31/08 $-- $(229,685) $-- $-- 3/31/09 -- -- -- (66,666) 3/31/10 -- -- (142,514) -- 3/31/11 -- -- (121,635) -- 3/31/12 (501,285) -- -- -- 3/31/14 -- (1,172,418) -- -- - ------------------------------------------------------------------------------- Total $(501,285) $(1,402,103) $(264,149) $(66,666) 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. 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 is evaluating the application of the Interpretation to each fund, and has not at this time determined the impact, if any, resulting from the adoption of this Interpretation on each fund's financial statements. MULTIPLE CLASSES OF SHARES OF BENEFICIAL INTEREST - Each 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 shares will convert to Class A shares approximately eight years after purchase. (3) TRANSACTIONS WITH AFFILIATES INVESTMENT ADVISER - The trust has an investment advisory agreement with Massachusetts Financial Services Company (MFS) to provide overall investment management and related administrative services and facilities to each fund. The management fee is computed daily and paid monthly at an annual rate of 0.55% of each 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 0.30% of each fund's average daily net assets for the period March 1, 2004 through February 28, 2009. For the six months ended September 30, 2006, this waiver amounted to the following for each fund and is reflected as a reduction of total expenses in the Statement of Operations. ALABAMA ARKANSAS CALIFORNIA FLORIDA GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND FUND FUND FUND FUND $107,215 $165,496 $478,298 $103,817 $75,847 $169,006 $288,895 The management fee incurred for the six months ended September 30, 2006 was equivalent to an annual effective rate of 0.30% of each fund's average daily net assets. DISTRIBUTOR - MFS Fund Distributors, Inc. (MFD), a wholly-owned subsidiary of MFS, as distributor, received the following amounts for the six months ended September 30, 2006, as its portion of the initial sales charge on sales of Class A shares of the funds. ALABAMA ARKANSAS CALIFORNIA FLORIDA GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND FUND FUND FUND FUND $9,825 $31,373 $44,191 $8,071 $5,604 $14,288 $18,651 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. Each 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: CLASS A ------------------------------------------------------------------------------------ TOTAL ANNUAL DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE AND SERVICE FEE RATE FEE RATE PLAN(d) RATE(e) FEE Alabama Fund 0.10% 0.25% 0.35% 0.25% $91,213 Arkansas Fund 0.10% 0.25% 0.35% 0.10% 60,930 California Fund 0.10% 0.25% 0.35% 0.10% 148,985 Florida Fund 0.10% 0.25% 0.35% 0.00% -- Georgia Fund 0.10% 0.25% 0.35% 0.25% 64,162 Maryland Fund 0.10% 0.25% 0.35% 0.35% 200,744 Massachusetts Fund 0.10% 0.25% 0.35% 0.35% 341,814 CLASS B ------------------------------------------------------------------------------------ TOTAL ANNUAL DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE AND SERVICE FEE RATE FEE RATE PLAN(d) RATE(e) FEE Alabama Fund 0.75% 0.25% 1.00% 1.00% $64,011 Arkansas Fund 0.75% 0.25% 1.00% 0.87% 45,724 California Fund 0.75% 0.25% 1.00% 0.86% 237,504 Florida Fund 0.75% 0.25% 1.00% 0.76% 51,845 Georgia Fund 0.75% 0.25% 1.00% 1.00% 46,743 Maryland Fund 0.75% 0.25% 1.00% 1.00% 102,471 Massachusetts Fund 0.75% 0.25% 1.00% 1.00% 178,968 CLASS C ------------------------------------------------------------------------------------ TOTAL ANNUAL DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE AND SERVICE FEE RATE FEE RATE PLAN(d) RATE(e) FEE California Fund 0.75% 0.25% 1.00% 1.00% $146,316 ALABAMA ARKANSAS CALIFORNIA FLORIDA GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND FUND FUND FUND FUND Total Distribution and Service Fees $155,224 $106,654 $532,805 $51,845 $110,905 $303,215 $520,782 (d) In accordance with the distribution plan for certain classes, each 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 six months ended September 30, 2006 based on each class' average daily net assets. Payment of Florida Fund's 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 Arkansas Fund's and California Fund's 0.10% of the Class A service fee is currently being paid by each fund. Payment of the remaining 0.15% of the Class A service fee is not yet in effect and will be implemented on such date as the Trustees of the Trust may determine. For one year from the date of sale of Florida Fund's Class B shares, assets attributable to such Class B shares are subject to the 0.25% annual Class B service fee. On assets attributable to all other Class B shares, the service fee is not currently in effect, but may be implemented on such date as the fund's Board of Trustees may determine. For one year from the date of sale of Arkansas Fund's and California Fund's Class B shares, assets attributable to such Class B shares are subject to the 0.25% annual Class B service fee. On assets attributable to all other Class B shares, 0.10% of the Class B service fee is currently in effect and the remaining portion of the Class B service fee is not in effect but may be implemented on such date as the fund's Board of Trustees may determine. Payment of the Alabama Fund's, Arkansas Fund's, California Fund's, Florida Fund's, and Georgia Fund's 0.10% annual Class A distribution fee is not yet in effect and will be implemented on such date as the Trustees of the Trust may determine. 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 six months ended September 30, 2006, were as follows: ALABAMA ARKANSAS CALIFORNIA FLORIDA GEORGIA MARYLAND MASSACHUSETTS CDSC IMPOSED FUND FUND FUND FUND FUND FUND FUND Class A $-- $-- $20,000 $-- $-- $-- $42 Class B 16,919 10,876 51,328 21,702 8,430 9,542 35,248 Class C N/A N/A 1,748 N/A N/A N/A N/A SHAREHOLDER SERVICING AGENT - MFS Service Center, Inc. (MFSC), a wholly-owned subsidiary of MFS, receives a fee from the funds, for its services as shareholder servicing agent calculated as a percentage of the average net assets of each fund as determined periodically under the supervision of the funds' Board of Trustees. For the six months ended September 30, 2006, the fees were as follows, which equated to the following annual percentage of each fund's average daily net assets. ALABAMA ARKANSAS CALIFORNIA FLORIDA GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND FUND FUND FUND FUND Expenses paid $41,342 $63,815 $184,432 $40,032 $29,247 $65,169 $111,398 Percentage of average daily net assets 0.0964% 0.0964% 0.0964% 0.0964% 0.0964% 0.0964% 0.0964% MFSC also receives payment from the funds for out-of-pocket and sub-accounting expenses paid by MFSC on behalf of the funds. For the six months ended September 30, 2006, these costs amounted to the following: ALABAMA ARKANSAS CALIFORNIA FLORIDA GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND FUND FUND FUND FUND $1,871 $4,678 $9,826 $3,476 $1,539 $3,691 $19,102 The fund may also pay shareholder servicing related costs to non-related parties. ADMINISTRATOR - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to the funds. Under an administrative services agreement, the funds partially reimburse MFS the costs incurred to provide these services. Each fund is charged a fixed amount plus a fee based on calendar year average net assets. Each fund's annual fixed amount is $17,500. The administrative services fee incurred for the six months ended September 30, 2006 was equivalent to the following annual effective rates of each fund's average daily net assets: ALABAMA ARKANSAS CALIFORNIA FLORIDA GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND FUND FUND FUND FUND Percentage of average daily net assets 0.0282% 0.0247% 0.0206% 0.0285% 0.0321% 0.0246% 0.0221% TRUSTEES' AND OFFICERS' COMPENSATION - Each fund pays compensation to Independent Trustees in the form of a retainer, attendance fees, and additional compensation to Board and Committee chairpersons. The funds do 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. Each fund has an unfunded, defined benefit plan for certain retired Independent Trustees which resulted in the following pension expense for the funds. These amounts are included in Independent trustees' compensation for the six months ended September 30, 2006. ALABAMA ARKANSAS CALIFORNIA FLORIDA GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND FUND FUND FUND FUND $399 $388 $899 $386 $388 $789 $802 The deferred liability for retirement benefits payable to certain retired Trustees amounted to the following for each fund at September 30, 2006, and is included in payable for independent trustees' compensation. ALABAMA ARKANSAS CALIFORNIA FLORIDA GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND FUND FUND FUND FUND $10,609 $10,177 $20,173 $10,163 $12,076 $14,656 $14,585 OTHER - These funds 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 six months ended September 30, 2006, the fee paid to Tarantino LLC amounted to the following: ALABAMA ARKANSAS CALIFORNIA FLORIDA GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND FUND FUND FUND FUND $220 $338 $976 $213 $155 $346 $592 MFS has agreed to reimburse the funds for a portion of the payments made by each fund to Tarantino LLC in the following amounts, which are 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. ALABAMA ARKANSAS CALIFORNIA FLORIDA GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND FUND FUND FUND FUND $220 $338 $976 $213 $155 $346 $592 (4) PORTFOLIO SECURITIES Purchases and sales of investments, other than U.S. government securities, purchased option transactions, and short-term obligations were as follows: ALABAMA ARKANSAS CALIFORNIA FLORIDA GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND FUND FUND FUND FUND Purchases $4,167,303 $8,866,318 $32,794,356 $3,218,605 $1,247,529 $14,767,816 $4,456,821 - ------------------------------------------------------------------------------------------------------------------------- Sales $6,753,348 $10,110,438 $28,664,516 $7,444,675 $3,231,781 $17,129,859 $10,491,250 - ------------------------------------------------------------------------------------------------------------------------- (5) SHARES OF BENEFICIAL INTEREST The Trust's Declaration permits the Trustees to issue an unlimited number of full and fractional shares of beneficial interest. Transactions in each funds' shares were as follows: ALABAMA FUND ARKANSAS FUND ------------------------------------------------------- --------------------------------------------------- SIX MONTHS ENDED YEAR ENDED SIX MONTHS ENDED YEAR ENDED 9/30/06 3/31/06 9/30/06 3/31/06 ------------------------- -------------------------- ------------------------ ------------------------- SHARES AMOUNT SHARES AMOUNT SHARES AMOUNT SHARES AMOUNT Shares sold Class A 313,951 $3,284,820 453,164 $4,807,670 621,818 $6,232,096 1,098,066 $11,184,396 Class B 20,141 210,372 47,894 508,335 38,286 382,846 127,141 1,292,625 - ----------------------------------------------------------------------------------------------------------------------------------- 334,092 $3,495,192 501,058 $5,316,005 660,104 $6,614,942 1,225,207 $12,477,021 Shares issued to shareholders in reinvestment of distributions Class A 87,029 $909,508 183,725 $1,948,887 153,862 $1,541,296 306,870 $3,122,224 Class B 12,535 130,952 27,249 289,073 11,612 116,468 24,788 252,510 - ----------------------------------------------------------------------------------------------------------------------------------- 99,564 $1,040,460 210,974 $2,237,960 165,474 $1,657,764 331,658 $3,374,734 Shares reacquired Class A (502,533) $(5,247,901) (842,942) $(8,923,169) (762,426) $(7,632,526) (1,743,455) $(17,710,230) Class B (169,279) (1,765,462) (213,823) (2,267,688) (117,948) (1,184,194) (198,441) (2,020,468) - ----------------------------------------------------------------------------------------------------------------------------------- (671,812) $(7,013,363) (1,056,765) $(11,190,857) (880,374) $(8,816,720) (1,941,896) $(19,730,698) Net change Class A (101,553) $(1,053,573) (206,053) $(2,166,612) 13,254 $140,866 (338,519) $(3,403,610) Class B (136,603) (1,424,138) (138,680) (1,470,280) (68,050) (684,880) (46,512) (475,333) - ----------------------------------------------------------------------------------------------------------------------------------- (238,156) $(2,477,711) (344,733) $(3,636,892) (54,796) $(544,014) (385,031) $(3,878,943) CALIFORNIA FUND FLORIDA FUND ------------------------------------------------------- --------------------------------------------------- SIX MONTHS ENDED YEAR ENDED SIX MONTHS ENDED YEAR ENDED 9/30/06 3/31/06 9/30/06 3/31/06 ------------------------- -------------------------- ---------------------- ------------------------- SHARES AMOUNT SHARES AMOUNT SHARES AMOUNT SHARES AMOUNT Shares sold Class A 5,348,536 $31,179,249 5,540,422 $32,768,817 429,511 $4,302,453 1,343,743 $13,639,634 Class B 208,805 1,217,297 341,572 2,022,416 35,097 351,654 116,876 1,188,551 Class C 197,488 1,155,780 501,717 2,981,705 -- -- -- -- - ----------------------------------------------------------------------------------------------------------------------------------- 5,754,829 $33,552,326 6,383,711 $37,772,938 464,608 $4,654,107 1,460,619 $14,828,185 Shares issued to shareholders in reinvestment of distributions Class A 613,604 $3,575,164 1,269,372 $7,511,470 76,448 $767,536 142,752 $1,450,063 Class B 111,251 648,539 262,673 1,555,229 11,452 114,949 27,817 282,641 Class C 55,175 322,503 129,873 771,330 -- -- -- -- - ----------------------------------------------------------------------------------------------------------------------------------- 780,030 $4,546,206 1,661,918 $9,838,029 87,900 $882,485 170,569 $1,732,704 Shares reacquired Class A (3,604,464) $(21,019,461) (7,053,114) $(41,766,637) (642,782) $(6,448,118) (1,327,818) $(13,490,043) Class B (1,342,401) (7,819,295) (2,363,896) (14,014,351) (296,996) (2,976,634) (476,733) (4,836,416) Class C (420,022) (2,455,413) (1,149,084) (6,808,954) -- -- -- -- - ----------------------------------------------------------------------------------------------------------------------------------- (5,366,887) $(31,294,169) (10,566,094) $(62,589,942) (939,778) $(9,424,752) (1,804,551) $(18,326,459) Net change Class A 2,357,676 $13,734,952 (243,320) $(1,486,350) (136,823) $(1,378,129) 158,677 $1,599,654 Class B (1,022,345) (5,953,459) (1,759,651) (10,436,706) (250,447) (2,510,031) (332,040) (3,365,224) Class C (167,359) (977,130) (517,494) (3,055,919) -- -- -- -- - ----------------------------------------------------------------------------------------------------------------------------------- 1,167,972 $6,804,363 (2,520,465) $(14,978,975) (387,270) $(3,888,160) (173,363) $(1,765,570) GEORGIA FUND MARYLAND FUND ------------------------------------------------------- --------------------------------------------------- SIX MONTHS ENDED YEAR ENDED SIX MONTHS ENDED YEAR ENDED 9/30/06 3/31/06 9/30/06 3/31/06 ------------------------- -------------------------- ---------------------- ------------------------- SHARES AMOUNT SHARES AMOUNT SHARES AMOUNT SHARES AMOUNT Shares sold Class A 170,269 $1,844,244 460,892 $5,066,357 397,097 $4,470,960 730,679 $8,394,007 Class B 12,305 133,540 28,232 312,944 43,482 487,684 83,527 958,062 - ----------------------------------------------------------------------------------------------------------------------------------- 182,574 $1,977,784 489,124 $5,379,301 440,579 $4,958,644 814,206 $9,352,069 Shares issued to shareholders in reinvestment of distributions Class A 66,922 $723,083 137,577 $1,511,329 131,868 $1,483,563 299,543 $3,427,995 Class B 8,530 92,471 20,316 223,644 18,748 210,805 48,765 557,986 - ----------------------------------------------------------------------------------------------------------------------------------- 75,452 $815,554 157,893 $1,734,973 150,616 $1,694,368 348,308 $3,985,981 Shares reacquired Class A (285,738) $(3,083,819) (655,008) $(7,177,983) (529,852) $(5,958,339) (1,610,274) $(18,401,179) Class B (103,495) (1,118,773) (350,537) (3,854,834) (200,296) (2,253,343) (505,608) (5,810,178) - ----------------------------------------------------------------------------------------------------------------------------------- (389,233) $(4,202,592) (1,005,545) $(11,032,817) (730,148) $(8,211,682) (2,115,882) $(24,211,357) Net change Class A (48,547) $(516,492) (56,539) $(600,297) (887) $(3,816) (580,052) $(6,579,177) Class B (82,660) (892,762) (301,989) (3,318,246) (138,066) (1,554,854) (373,316) (4,294,130) - ----------------------------------------------------------------------------------------------------------------------------------- (131,207) $(1,409,254) (358,528) $(3,918,543) (138,953) $(1,558,670) (953,368) $(10,873,307) MASSACHUSETTS FUND ------------------------------------------------------- SIX MONTHS ENDED YEAR ENDED 9/30/06 3/31/06 ------------------------- -------------------------- SHARES AMOUNT SHARES AMOUNT Shares sold Class A 693,000 $7,773,612 1,762,892 $20,057,220 Class B 51,764 580,672 181,196 2,072,498 - ---------------------------------------------------------------------------- 744,764 $8,354,284 1,944,088 $22,129,718 Shares issued to shareholders in reinvestment of distributions Class A 184,338 $2,067,220 405,376 $4,607,951 Class B 33,135 372,232 81,697 930,076 - ------------------------------------------------------------------------------- 217,473 $2,439,452 487,073 $5,538,027 Shares reacquired Class A (1,092,691) $(12,236,563) (3,187,918) $(36,274,707) Class B (324,427) (3,639,434) (575,954) (6,568,954) - ------------------------------------------------------------------------------- (1,417,118) $(15,875,997) (3,763,872) $(42,843,661) Net change Class A (215,353) $(2,395,731) (1,019,650) $(11,609,536) Class B (239,528) (2,686,530) (313,061) (3,566,380) - ------------------------------------------------------------------------------- (454,881) $(5,082,261) (1,332,711) $(15,175,916) (6) LINE OF CREDIT Each fund and other affiliated funds participate in a $1 billion unsecured committed line of credit provided by a syndication of banks under a credit agreement. In addition, these funds and other affiliated funds have established uncommitted borrowing arrangements with certain brokers. 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 0.35%. 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. The interest expense incurred and commitment fee allocated to each fund for the six months ended September 30, 2006 is included in miscellaneous expense on the Statement of Operations as follows: ALABAMA ARKANSAS CALIFORNIA FLORIDA GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND FUND FUND FUND FUND Commitment Fee $263 $404 $1,162 $254 $186 $413 $707 Interest Expense -- -- -- -- -- -- -- (7) CONCENTRATION OF CREDIT RISK Since each fund invests a substantial portion of its assets in issuers located in one state, it will be more susceptible to factors adversely affecting issuers of that state than would be a comparable tax-exempt mutual fund that invests nationally. The risk associated with such factors is mitigated by the fact that a percentage of securities in a portfolio of investments are backed by letters of credit or bond insurance of various financial institutions and financial guaranty assurance agencies. At September 30, 2006, the percentage of holdings that carried such enhancements were as follows: ALABAMA ARKANSAS CALIFORNIA FLORIDA GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND FUND FUND FUND FUND Total: 69.93% 74.18% 49.28% 61.51% 50.04% 30.21% 47.10% For each fund, the greatest exposure to any one institution or agency did not exceed the following percentages of total investments as of September 30, 2006: ALABAMA ARKANSAS CALIFORNIA FLORIDA GEORGIA MARYLAND MASSACHUSETTS FUND FUND FUND FUND FUND FUND FUND Single Insurer: 37.03% 21.93% 13.21% 25.61% 15.36% 11.81% 13.22% 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 each Fund's investment advisory agreement with MFS. The Trustees consider matters bearing on the Funds and their 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, 2006 ("contract review meetings") for the specific purpose of considering whether to approve the continuation of the investment advisory agreements for the Funds and the other investment companies that the Board oversees (the "MFS Funds"). The independent Trustees were assisted in their evaluation of the Funds' investment advisory agreements 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 agreements, 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 each 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 agreements and other arrangements with the Funds. In connection with their contract review meetings, the Trustees received and relied upon materials which included, among other items: (i) information provided by Lipper Inc. on the investment performance of the Funds for various time periods ended December 31, 2005 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 Funds' 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 Funds, (v) information regarding MFS' financial results and financial condition, including MFS' and certain of its affiliates' estimated profitability from services performed for the Funds 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 Funds and 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 agreements with the Funds 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 Funds and other MFS Funds are the result of years of review and discussion between the independent Trustees and MFS, that certain aspects of such arrangements may receive greater scrutiny in some years than others, and that the Trustees' conclusions may be based, in part, on their consideration of these same arrangements during the course of the year and in prior years. Based on information provided by Lipper Inc. and MFS, the Trustees reviewed each 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 each 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, 2005, which the Trustees believed was a long enough period to reflect differing market conditions. 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 Funds' performance. After reviewing these and related factors, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreements, that they were satisfied with MFS' responses and efforts relating to investment performance. In assessing the reasonableness of each Fund's advisory fee, the Trustees considered, among other information, each Fund's advisory fee and the total expense ratio of each Fund's Class A shares as a percentage of average net assets and the advisory fee and total expense ratios of peer groups of funds based on information provided by Lipper Inc. and MFS. The Trustees considered whether the Funds were subject to any fee waivers or reductions or expense limitations. The Trustees considered that MFS observes an advisory fee reduction that will remain in effect for each Fund through February 28, 2009 as part of MFS's settlement with the New York Attorney General concerning market timing and related matters. 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 Funds 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 Funds, and the impact on MFS and expenses associated with the more extensive regulatory regime to which the Funds are subject in comparison to institutional accounts. The Trustees also considered whether each 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 each 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 Funds at this time. The Trustees also considered information prepared by MFS relating to MFS' costs and profits with respect to each 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 Funds 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 agreements, that the advisory fees charged to each Fund represent reasonable compensation in light of the services being provided by MFS to the Funds. In addition, the Trustees considered MFS' resources and related efforts to continue to retain, attract and motivate capable personnel to serve the Funds. 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 Funds of having an adviser which also serves other investment companies as well as other accounts. The Trustees also considered the nature, quality, cost, and extent of administrative, transfer agency, and distribution services provided to the Funds by MFS and its affiliates under agreements and plans other than the investment advisory agreements, including any 12b-1 fees the Funds pay 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 Funds' 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 Funds' 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 Funds. 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 each Fund's investment advisory agreement with MFS should be continued for an additional one-year period, commencing August 1, 2006. MFS ALABAMA MUNICIPAL BOND FUND The Fund's Class A performance was in the 3rd quintile relative to the other funds in the universe for the three-year period ended December 31, 2005 (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 the one-year period and the 2nd quintile for the five- year period ended December 31, 2005 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 assessing the reasonableness of the Fund's advisory fee, the Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate (taking into account the advisory fee reduction) was lower than the Lipper expense group median, and the Fund's total expense ratio was approximately at the Lipper expense group median. MFS ARKANSAS MUNICIPAL BOND FUND The Fund's Class A performance was in the 2nd quintile relative to the other funds in the universe for the three-year period ended December 31, 2005 (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 1st quintile for the five- year period ended December 31, 2005 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 assessing the reasonableness of the Fund's advisory fee, the Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate (taking into account the advisory fee reduction) and total expense ratio were each lower than the Lipper expense group median. MFS CALIFORNIA MUNICIPAL BOND FUND The Fund's Class A performance was in the 2nd quintile relative to the other funds in the universe for the three-year period ended December 31, 2005 (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 1st quintile for the five- year period ended December 31, 2005 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 assessing the reasonableness of the Fund's advisory fee, the Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate (taking into account the advisory fee reduction) and total expense ratio were each lower than the Lipper expense group median. MFS FLORIDA MUNICIPAL BOND FUND The Fund's Class A performance was in the 2nd quintile relative to the other funds in the universe for the three-year period ended December 31, 2005 (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 1st quintile for the five- year period ended December 31, 2005 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 assessing the reasonableness of the Fund's advisory fee, the Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate (taking into account the advisory fee reduction) and total expense ratio were each lower than the Lipper expense group median. MFS GEORGIA MUNICIPAL BOND FUND The Fund's Class A performance was in the 2nd quintile relative to the other funds in the universe for the three-year period ended December 31, 2005 (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 the one-year period and the 2nd quintile for the five- year period ended December 31, 2005 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 assessing the reasonableness of the Fund's advisory fee, the Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate (taking into account the advisory fee reduction) was lower than the Lipper expense group median, and the Fund's total expense ratio was approximately at the Lipper expense group median. MFS MARYLAND MUNICIPAL BOND FUND The Fund's Class A performance was in the 2nd quintile relative to the other funds in the universe for the three-year period ended December 31, 2005 (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 1st quintile for the five- year period ended December 31, 2005 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 assessing the reasonableness of the Fund's advisory fee, the Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate (taking into account the advisory fee reduction) was lower than the Lipper expense group median, and the Fund's total expense ratio was approximately at the Lipper expense group median. MFS MASSACHUSETTS MUNICIPAL BOND FUND The Fund's Class A performance was in the 2nd quintile relative to the other funds in the universe for the three-year period ended December 31, 2005 (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, 2005 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 assessing the reasonableness of the Fund's advisory fee, the Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate (taking into account the advisory fee reduction) was lower than the Lipper expense group median, and the Fund's total expense ratio was approximately at the Lipper expense group median. ACCESS TO DISCLOSURES ON MFS WEBSITE A discussion regarding the Board's most recent review and renewal of each Fund's investment advisory agreement will be available on or before November 1, 2006, by clicking on each 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 each 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 trust 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 trust'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 trust'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. CONTACT US WEB SITE mfs.com MFS TALK 1-800-637-8255 24 hours a day ACCOUNT SERVICE AND LITERATURE 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 MAILING ADDRESS MFS Service Center, Inc. P.O. Box 55824 Boston, MA 02205-5824 OVERNIGHT MAIL MFS Service Center, Inc. 500 Boylston Street Boston, MA 02116-3741 - ------------------------------------------------------------------------------- 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 500 Boylston Street Boston, MA 02116 M F S(R) INVESTMENT MANAGEMENT [graphic omitted] 9/30/06 Semiannual Report MFS(R) MUNICIPAL SERIES TRUST For the states of: Mississippi, New York, North Carolina, Pennsylvania, South Carolina, Tennessee, Virginia, and West Virginia MSTB-SEM MFS(R) Municipal Series Trust Mississippi, New York, North Carolina, Pennsylvania, South Carolina, Tennessee, Virginia, and West Virginia LETTER FROM THE CEO 1 - ------------------------------------ PORTFOLIO COMPOSITION 2 - ------------------------------------ EXPENSE TABLES 5 - ------------------------------------ PORTFOLIO OF INVESTMENTS 8 - ------------------------------------ STATEMENTS OF ASSETS AND LIABILITIES 41 - ------------------------------------ STATEMENTS OF OPERATIONS 45 - ------------------------------------ STATEMENTS OF CHANGES IN NET ASSETS 47 - ------------------------------------ FINANCIAL HIGHLIGHTS 50 - ------------------------------------ NOTES TO FINANCIAL STATEMENTS 69 - ------------------------------------ BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT 79 - ------------------------------------ PROXY VOTING POLICIES AND INFORMATION 83 - ------------------------------------ QUARTERLY PORTFOLIO DISCLOSURE 83 - ------------------------------------ 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 - ------------------------------------------------------------------------------- [Photo of Robert J. Manning] LETTER FROM THE CEO Dear Shareholders: What a difference a year can make. By the end of 2005, the Dow Jones Industrial Average had lost value over the course of the year, as stocks were beaten back by a myriad of investor worries, including a spike in oil prices, a rise in interest rates, and political uncertainty in the Middle East. Fast forward to 2006, and we have seen a dramatically different picture. While there were some fluctuations in the global markets in the first half of the year, the second half of 2006 has, so far, been good to many investors. Oil prices retreated, boosting consumer confidence, and interest rates have held steady. U.S. stock markets responded favorably to this news, as the Dow reached a record high in October, passing the 12,000 mark. What does all of this mean for you? If you're focused on a long-term investment strategy, the high points in the road -- and the bumps -- should not necessarily dictate portfolio action on your part. Markets are inherently cyclical, and we firmly believe that investors who remain committed to a long- term investment strategy are more likely to achieve their goals than those who consistently chase short-term performance. At MFS(R), our unique teamwork approach to managing money and our global research platform support an unwavering focus on helping you realize your long-term financial goals. We believe in a three-pronged investment strategy of allocating your holdings across major asset classes, diversifying within each class, and rebalancing regularly. 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 are essential to capitalizing on the many opportunities the financial markets can offer. Respectfully, /s/ Robert J. Manning Robert J. Manning Chief Executive Officer and Chief Investment Officer MFS Investment Management(R) November 15, 2006 The opinions expressed in this letter are those of MFS, and no forecasts can be guaranteed. PORTFOLIO COMPOSITION MFS(R) Mississippi Municipal Bond Fund PORTFOLIO STRUCTURE(i) Municipal Bonds 99.1% Cash & Other Net Assets 0.9% TOP FIVE INDUSTRIES (i) Healthcare Revenue - Hospitals 17.8% ---------------------------------------------- State & Local Agencies 14.6% ---------------------------------------------- Water & Sewer Utility Revenue 12.7% ---------------------------------------------- General Obligations - General Purpose 12.3% ---------------------------------------------- Universities - Colleges 11.4% ---------------------------------------------- CREDIT QUALITY OF BONDS (r) AAA 78.5% ---------------------------------------------- AA 2.4% ---------------------------------------------- A 7.0% ---------------------------------------------- BBB 9.9% ---------------------------------------------- Not Rated 2.2% ---------------------------------------------- PORTFOLIO FACTS Average Duration (d) 6.5 ---------------------------------------------- Average Life (m) 14.7 yrs. ---------------------------------------------- Average Maturity (m) 16.2 yrs. ---------------------------------------------- Average Credit Quality of Rated Securities (long-term) (a) AA+ ---------------------------------------------- Average Credit Quality of Rated Securities (short-term) (a) A-1 ---------------------------------------------- MFS(R) New York Municipal Bond Fund PORTFOLIO STRUCTURE(i) Municipal Bonds 98.6% Cash & Other Net Assets 1.4% TOP FIVE INDUSTRIES (i) State & Local Agencies 12.7% ------------------------------------------------ Water & Sewer Utility Revenue 10.3% ------------------------------------------------ Toll Roads 8.9% ------------------------------------------------ Transportation - Special Tax 8.6% ------------------------------------------------ General Obligations - General Purpose 7.5% ------------------------------------------------ CREDIT QUALITY OF BONDS (r) AAA 43.4% ------------------------------------------------ AA 19.7% ------------------------------------------------ A 19.3% ------------------------------------------------ BBB 10.4% ------------------------------------------------ BB 1.4% ------------------------------------------------ B 1.0% ------------------------------------------------ Not Rated 4.8% ------------------------------------------------ PORTFOLIO FACTS Average Duration (d) 6.6 ------------------------------------------------ Average Life (m) 15.1 yrs. ------------------------------------------------ Average Maturity (m) 16.6 yrs. ------------------------------------------------ Average Credit Quality of Rated Securities (long-term) (a) AA ------------------------------------------------ Average Credit Quality of Rated Securities (short-term) (a) A-1 ------------------------------------------------ MFS(R) North Carolina Municipal Bond Fund PORTFOLIO STRUCTURE(i) Municipal Bonds 99.0% Cash & Other Net Assets 1.0% TOP FIVE INDUSTRIES (i) Healthcare Reveunue - Hospitals 21.7% ------------------------------------------------ Utilities - Municipal Owned 13.9% ------------------------------------------------ Universities - Colleges 10.5% ------------------------------------------------ Water & Sewer Utility Revenue 8.7% ------------------------------------------------ State & Agency - Other 8.3% ------------------------------------------------ CREDIT QUALITY OF BONDS (r) AAA 41.5% ------------------------------------------------ AA 32.6% ------------------------------------------------ A 8.0% ------------------------------------------------ BBB 16.7% ------------------------------------------------ Not Rated 1.2% ------------------------------------------------ PORTFOLIO FACTS Average Duration (d) 5.8 ------------------------------------------------ Average Life (m) 14.0 yrs. ------------------------------------------------ Average Maturity (m) 15.3 yrs. ------------------------------------------------ Average Credit Quality of Rated Securities (long-term) (a) AA ------------------------------------------------ Average Credit Quality of Rated Securities (short-term) (a) A-1 ------------------------------------------------ MFS(R) Pennsylvania Municipal Bond Fund PORTFOLIO STRUCTURE(i) Municipal Bonds 97.4% Cash & Other Net Assets 2.6% TOP FIVE INDUSTRIES (i) General Obligations - Schools 21.1% ------------------------------------------------ Universities - Colleges 12.4% ------------------------------------------------ Healthcare Revenue - Hospitals 11.4% ------------------------------------------------ Water & Sewer Utility Revenue 9.6% ------------------------------------------------ General Obligations - General Purpose 6.7% ------------------------------------------------ CREDIT QUALITY OF BONDS (r) AAA 66.2% ------------------------------------------------ AA 15.1% ------------------------------------------------ A 6.2% ------------------------------------------------ BBB 9.2% ------------------------------------------------ BB 0.6% ------------------------------------------------ B 0.7% ------------------------------------------------ Not Rated 2.0% ------------------------------------------------ PORTFOLIO FACTS Average Duration (d) 6.5 ------------------------------------------------ Average Life (m) 16.8 yrs. ------------------------------------------------ Average Maturity (m) 17.8 yrs. ------------------------------------------------ Average Credit Quality of Rated Securities (long-term) (a) AA ------------------------------------------------ Average Credit Quality of Rated Securities (short-term) (a) A-1 ------------------------------------------------ MFS(R) South Carolina Municipal Bond Fund PORTFOLIO STRUCTURE(i) Municipal Bonds 99.1% Cash & Other Net Assets 0.9% TOP FIVE INDUSTRIES (i) Healthcare Revenue - Hospitals 21.4% ------------------------------------------------ Water & Sewer Utility Revenue 12.0% ------------------------------------------------ Universities - Colleges 11.9% ------------------------------------------------ Utilities - Municipal Owned 10.5% ------------------------------------------------ General Obligations - Schools 10.3% ------------------------------------------------ CREDIT QUALITY OF BONDS (r) AAA 73.9% ------------------------------------------------ AA 12.7% ------------------------------------------------ A 5.9% ------------------------------------------------ BBB 4.8% ------------------------------------------------ B 0.6% ------------------------------------------------ Not Rated 2.1% ------------------------------------------------ PORTFOLIO FACTS Average Duration (d) 6.6 ------------------------------------------------ Average Life (m) 17.9 yrs. ------------------------------------------------ Average Maturity (m) 18.8 yrs. ------------------------------------------------ Average Credit Quality of Rated Securities (long-term) (a) AA+ ------------------------------------------------ Average Credit Quality of Rated Securities (short-term) (a) A-1 ------------------------------------------------ MFS(R) Tennessee Municipal Bond Fund PORTFOLIO STRUCTURE(i) Municipal Bonds 98.1% Cash & Other Net Assets 1.9% TOP FIVE INDUSTRIES (i) Water & Sewer Utility Revenue 19.0% ------------------------------------------------ Healthcare Revenue - Hospitals 14.4% ------------------------------------------------ Single Family Housing - State 13.3% ------------------------------------------------ General Obligations - Schools 13.2% ------------------------------------------------ Utilities - Municipal Owned 7.2% ------------------------------------------------ CREDIT QUALITY OF BONDS (r) AAA 58.2% ------------------------------------------------ AA 29.8% ------------------------------------------------ A 4.4% ------------------------------------------------ BBB 4.6% ------------------------------------------------ B 0.9% ------------------------------------------------ Not Rated 2.1% ------------------------------------------------ PORTFOLIO FACTS Average Duration (d) 5.6 ------------------------------------------------ Average Life (m) 12.6 yrs. ------------------------------------------------ Average Maturity (m) 15.6 yrs. ------------------------------------------------ Average Credit Quality of Rated Securities (long-term) (a) AA+ ------------------------------------------------ Average Credit Quality of Rated Securities (short-term) (a) A-1 ------------------------------------------------ MFS(R) Virginia Municipal Bond Fund PORTFOLIO STRUCTURE(i) Municipal Bonds 97.9% Cash & Other Net Assets 2.1% TOP FIVE INDUSTRIES (i) State & Local Agencies 20.7% ------------------------------------------------- General Obligations - Improvement 13.2% ------------------------------------------------- Healthcare Revenue - Hospitals 12.7% ------------------------------------------------- Water & Sewer Utility Revenue 9.4% ------------------------------------------------- Airport & Port Revenue 8.7% ------------------------------------------------- CREDIT QUALITY OF BONDS (r) AAA 49.4% ------------------------------------------------- AA 25.2% ------------------------------------------------- A 12.5% ------------------------------------------------- BBB 6.0% ------------------------------------------------- BB 1.2% ------------------------------------------------- B 1.6% ------------------------------------------------- Not Rated 4.1% ------------------------------------------------- PORTFOLIO FACTS Average Duration (d) 5.7 ------------------------------------------------- Average Life (m) 14.0 yrs. ------------------------------------------------- Average Maturity (m) 16.0 yrs. ------------------------------------------------- Average Credit Quality of Rated Securities (long-term) (a) AA ------------------------------------------------- Average Credit Quality of Rated Securities (short-term) (a) A-1 ------------------------------------------------- MFS(R) West Virginia Municipal Bond Fund PORTFOLIO STRUCTURE(i) Municipal Bonds 98.8% Cash & Other Net Assets 1.2% TOP FIVE INDUSTRIES (i) General Obligations - General Purpose 22.9% ------------------------------------------------ State & Local Agencies 21.5% ------------------------------------------------ Universities - Colleges 21.1% ------------------------------------------------ Water & Sewer Utility Revenue 9.5% ------------------------------------------------ Healthcare Revenue - Hospitals 5.5% ------------------------------------------------ CREDIT QUALITY OF BONDS (r) AAA 78.1% ------------------------------------------------ AA 6.5% ------------------------------------------------ A 9.6% ------------------------------------------------ BBB 4.0% ------------------------------------------------ BB 0.2% ------------------------------------------------ B 0.6% ------------------------------------------------ Not Rated 1.0% ------------------------------------------------ PORTFOLIO FACTS Average Duration (d) 6.1 ------------------------------------------------ Average Life (m) 15.2 yrs. ------------------------------------------------ Average Maturity (m) 16.3 yrs. ------------------------------------------------ Average Credit Quality of Rated Securities (long-term) (a) AA+ ------------------------------------------------ Average Credit Quality of Rated Securities (short-term) (a) A-1 ------------------------------------------------ (a) The average credit quality of rated securities is based upon a market weighted average of portfolio holdings that are rated by public rating agencies. (d) Duration is a measure of how much a bond's price is likely to fluctuate with general changes in interest rates, e.g., if rates rise 1.00%, a bond with a 5-year duration is likely to lose about 5.00% of its value. (i) For purposes of this graphical presentation, the bond component includes both accrued interest amounts and the equivalent expo sure from any derivative holdings, if applicable. (m) The average maturity shown is calculated using the final stated maturity on the portfolio's holdings without taking into account any holdings which have been pre-refunded or pre-paid to an earlier date or which have a mandatory put date prior to the stated maturity. The average life shown takes into account these earlier dates. (r) Each security is assigned a rating from Moody's Investors Service. If not rated by Moody's, the rating will be that assigned by Standard & Poor's. Likewise, if not assigned a rating by Standard & Poor's, it will be based on the rating assigned by Fitch, Inc. For those portfolios that hold a security which is not rated by any of the three agencies, the security is considered Not Rated. Holdings in U.S. Treasuries and government agency mortgage-backed securities, if any, are included in the "AAA"-rating category. Percentages are based on the total market value of investments as of 09/30/06. Percentages are based on net assets as of 09/30/06, unless otherwise noted. The portfolios are actively managed and current holdings may be different. EXPENSE TABLES FUND EXPENSES BORNE BY THE SHAREHOLDERS DURING THE PERIOD, APRIL 1, 2006, THROUGH SEPTEMBER 30, 2006. As a shareholder of the funds, you incur two types of costs: (1) transaction costs, including sales charges (loads) on certain purchase or redemption payments and redemption fees on certain exchanges and redemptions, and (2) ongoing costs, including management fees; distribution and service (12b-1) fees; and other fund expenses. These examples are intended to help you understand your ongoing costs (in dollars) of investing in the funds and to compare these costs with the ongoing costs of investing in other mutual funds. These examples are based on an investment of $1,000 invested at the beginning of the period and held for the entire period April 1, 2006 through September 30, 2006. ACTUAL EXPENSES The first line for each share class in the following tables 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 tables provides information about hypothetical account values and hypothetical expenses based on each fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not each 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 each 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 tables are meant to highlight your ongoing costs only and do not reflect any transactional costs, such as sales charges (loads) or redemption fees. Therefore, the second line for each share class in the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher. MFS(R) MISSISSIPPI MUNICIPAL BOND FUND - -------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period (p) Expense Account Value Account Value 4/01/06- Share Class Ratio 4/01/06 9/30/06 9/30/06 - -------------------------------------------------------------------------------- Actual 0.62% $1,000.00 $1,033.80 $3.16 A ------------------------------------------------------------------------ Hypothetical (h) 0.62% $1,000.00 $1,021.96 $3.14 - -------------------------------------------------------------------------------- Actual 1.38% $1,000.00 $1,029.90 $7.02 B ------------------------------------------------------------------------ Hypothetical (h) 1.38% $1,000.00 $1,018.15 $6.98 - -------------------------------------------------------------------------------- MFS(R) NEW YORK MUNICIPAL BOND FUND - ------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period (p) Expense Account Value Account Value 4/01/06- Share Class Ratio 4/01/06 9/30/06 9/30/06 - -------------------------------------------------------------------------------- Actual 0.82% $1,000.00 $1,033.00 $4.18 A ------------------------------------------------------------------------ Hypothetical (h) 0.82% $1,000.00 $1,020.96 $4.15 - -------------------------------------------------------------------------------- Actual 1.57% $1,000.00 $1,029.20 $7.99 B ------------------------------------------------------------------------ Hypothetical (h) 1.57% $1,000.00 $1,017.20 $7.94 - -------------------------------------------------------------------------------- Actual 1.58% $1,000.00 $1,029.10 $8.04 C ------------------------------------------------------------------------ Hypothetical (h) 1.58% $1,000.00 $1,017.15 $7.99 - -------------------------------------------------------------------------------- MFS(R) NORTH CAROLINA MUNICIPAL BOND FUND - -------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period (p) Expense Account Value Account Value 4/01/06- Share Class Ratio 4/01/06 9/30/06 9/30/06 - -------------------------------------------------------------------------------- Actual 0.87% $1,000.00 $1,030.10 $4.43 A ------------------------------------------------------------------------ Hypothetical (h) 0.87% $1,000.00 $1,020.71 $4.41 - -------------------------------------------------------------------------------- Actual 1.53% $1,000.00 $1,027.60 $7.78 B ------------------------------------------------------------------------ Hypothetical (h) 1.53% $1,000.00 $1,017.40 $7.74 - -------------------------------------------------------------------------------- Actual 1.52% $1,000.00 $1,027.60 $7.73 C ------------------------------------------------------------------------ Hypothetical (h) 1.52% $1,000.00 $1,017.45 $7.69 - -------------------------------------------------------------------------------- MFS(R) PENNSYLVANIA MUNICIPAL BOND FUND - -------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period (p) Expense Account Value Account Value 4/01/06- Share Class Ratio 4/01/06 9/30/06 9/30/06 - -------------------------------------------------------------------------------- Actual 0.60% $1,000.00 $1,032.20 $3.06 A ------------------------------------------------------------------------ Hypothetical (h) 0.60% $1,000.00 $1,022.06 $3.04 - -------------------------------------------------------------------------------- Actual 1.36% $1,000.00 $1,028.30 $6.92 B ------------------------------------------------------------------------ Hypothetical (h) 1.36% $1,000.00 $1,018.25 $6.88 - -------------------------------------------------------------------------------- MFS(R) SOUTH CAROLINA MUNICIPAL BOND FUND - -------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period (p) Expense Account Value Account Value 4/01/06- Share Class Ratio 4/01/06 9/30/06 9/30/06 - -------------------------------------------------------------------------------- Actual 0.90% $1,000.00 $1,029.30 $4.58 A ------------------------------------------------------------------------ Hypothetical (h) 0.90% $1,000.00 $1,020.56 $4.56 - -------------------------------------------------------------------------------- Actual 1.56% $1,000.00 $1,026.00 $7.92 B ------------------------------------------------------------------------ Hypothetical (h) 1.56% $1,000.00 $1,017.25 $7.89 - -------------------------------------------------------------------------------- MFS(R) TENNESSEE MUNICIPAL BOND FUND - -------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period (p) Expense Account Value Account Value 4/01/06- Share Class Ratio 4/01/06 9/30/06 9/30/06 - -------------------------------------------------------------------------------- Actual 0.93% $1,000.00 $1,028.80 $4.73 A ------------------------------------------------------------------------ Hypothetical (h) 0.93% $1,000.00 $1,020.41 $4.71 - -------------------------------------------------------------------------------- Actual 1.58% $1,000.00 $1,024.50 $8.02 B ------------------------------------------------------------------------ Hypothetical (h) 1.58% $1,000.00 $1,017.15 $7.99 - -------------------------------------------------------------------------------- MFS(R) VIRGINIA MUNICIPAL BOND FUND - -------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period (p) Expense Account Value Account Value 4/01/06- Share Class Ratio 4/01/06 9/30/06 9/30/06 - -------------------------------------------------------------------------------- Actual 0.88% $1,000.00 $1,028.90 $4.48 A ------------------------------------------------------------------------ Hypothetical (h) 0.88% $1,000.00 $1,020.66 $4.46 - -------------------------------------------------------------------------------- Actual 1.54% $1,000.00 $1,025.60 $7.82 B ------------------------------------------------------------------------ Hypothetical (h) 1.54% $1,000.00 $1,017.35 $7.79 - -------------------------------------------------------------------------------- Actual 1.53% $1,000.00 $1,025.60 $7.77 C ------------------------------------------------------------------------ Hypothetical (h) 1.53% $1,000.00 $1,017.40 $7.74 - -------------------------------------------------------------------------------- MFS(R) WEST VIRGINIA MUNICIPAL BOND FUND - -------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period (p) Expense Account Value Account Value 4/01/06- Share Class Ratio 4/01/06 9/30/06 9/30/06 - -------------------------------------------------------------------------------- Actual 0.91% $1,000.00 $1,029.70 $4.63 A ------------------------------------------------------------------------ Hypothetical (h) 0.91% $1,000.00 $1,020.51 $4.61 - -------------------------------------------------------------------------------- Actual 1.56% $1,000.00 $1,027.20 $7.93 B ------------------------------------------------------------------------ Hypothetical (h) 1.56% $1,000.00 $1,017.25 $7.89 - -------------------------------------------------------------------------------- (h) 5% class return per year before expenses. (p) Expenses paid is equal to each class' annualized expense ratio, as shown above, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year. Expenses paid do not include any applicable sales charges (loads) or redemption fees. If these transaction costs had been included, your costs would have been higher. PORTFOLIO OF INVESTMENTS 9/30/06 (unaudited) MFS(R) MISSISSIPPI MUNICIPAL BOND FUND The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Municipal Bonds - 98.0% - ------------------------------------------------------------------------------------------------------------ ISSUER SHARES/PAR VALUE ($) - ------------------------------------------------------------------------------------------------------------ Airport and Port Revenue - 1.9% - ------------------------------------------------------------------------------------------------------------ Jackson, MS, Municipal Airport Authority, Airport Rev., "A", AMBAC, 5%, 2031 $ 1,510,000 $ 1,589,290 - ------------------------------------------------------------------------------------------------------------ General Obligations - General Purpose - 12.2% - ------------------------------------------------------------------------------------------------------------ Commonwealth of Puerto Rico, Public Improvement, "A", 5.25%, 2027 $ 800,000 $ 858,592 Commonwealth of Puerto Rico, ROLS, FGIC, 7.553%, 2016 (v)(z) 3,110,000 3,996,537 Hinds County, MS, MBIA, 6.25%, 2010 1,660,000 1,798,743 Hinds County, MS, MBIA, 6.25%, 2011 1,285,000 1,418,203 Mississippi Development Bank Special Obligations (Jackson, Mississippi) FSA, 5.25%, 2020 620,000 696,372 Mississippi Development Bank Special Obligations, Harrison County Mississippi Highway Construction, "N", FGIC, 5%, 2026 1,000,000 1,053,640 Puerto Rico Commonwealth Public Improvement, "A", CIFG, 5%, 2025 500,000 532,290 - ------------------------------------------------------------------------------------------------------------ $ 10,354,377 - ------------------------------------------------------------------------------------------------------------ General Obligations - Improvement - 2.3% - ------------------------------------------------------------------------------------------------------------ Mississippi Capital Improvement, "I", 6%, 2009 (c) $ 1,000,000 $ 1,070,140 Puerto Rico Municipal Finance Agency, RITES, FSA, 7.099%, 2017 (v)(z) 750,000 844,800 - ------------------------------------------------------------------------------------------------------------ $ 1,914,940 - ------------------------------------------------------------------------------------------------------------ General Obligations - Schools - 5.9% - ------------------------------------------------------------------------------------------------------------ Biloxi, MS, Public School District, MBIA, 5%, 2021 $ 1,000,000 $ 1,036,580 Jackson, MS, Public School District, "B", AMBAC, 5.75%, 2010 (c) 1,000,000 1,081,590 Jackson, MS, Public School District, "B", AMBAC, 0%, 2022 2,000,000 886,580 Jackson, MS, Public School District, "B", AMBAC, 0%, 2023 1,000,000 415,170 Madison County, MS, School District, "A", MBIA, 5.875%, 2009 (c) 1,500,000 1,596,795 - ------------------------------------------------------------------------------------------------------------ $ 5,016,715 - ------------------------------------------------------------------------------------------------------------ Healthcare Revenue - Hospitals - 17.6% - ------------------------------------------------------------------------------------------------------------ Alcorn County, MS, Corinth Hospital Rev. (Magnolia Regional Health Center), AMBAC, 5.75%, 2013 $ 885,000 $ 894,717 Corinth & Alcorn County, MS, Hospital Rev. (Magnolia Regional Health Center), 5.5%, 2021 400,000 405,184 Gulfport, MS, Hospital Facilities Rev. (Memorial Hospital), 5.75%, 2031 500,000 518,383 Gulfport, MS, Hospital Facilities Rev. (Memorial Hospital) MBIA, 6.125%, 2015 2,250,000 2,252,205 Gulfport, MS, Hospital Facilities Rev. (Memorial Hospital) MBIA, 6.2%, 2018 1,000,000 1,001,020 Hinds County, MS, Rev. (Methodist Hospital & Rehabilitation) AMBAC, 5.6%, 2012 2,055,000 2,146,612 Jones County, MS, Hospital Rev. (South Central Regional Medical Center), 5.5%, 2007 (c) 1,000,000 1,021,660 Mississippi Development Bank Special Obligations (Adams County Hospital) FSA, 5.75%, 2016 1,000,000 1,011,450 Mississippi Development Bank Special Obligations (Covington Hospital Nursing Home), "A", AMBAC, 5%, 2031 500,000 522,720 Mississippi Hospital Equipment & Facilities Authority Rev. (Baptist Medical Center) MBIA, 6.5%, 2010 1,190,000 1,198,378 Mississippi Hospital Equipment & Facilities Authority Rev. (Baptist Medical Center) MBIA, 6%, 2013 750,000 755,003 Mississippi Hospital Equipment & Facilities Authority Rev. (Baptist Memorial Healthcare), "B-1", 5%, 2024 1,000,000 1,030,910 Mississippi Hospital Equipment & Facilities Authority Rev. (Forrest County General Hospital) FSA, 5.625%, 2020 1,000,000 1,078,110 Mississippi Hospital Equipment & Facilities Authority Rev. Refunding & Improvement, Hospital South Central, 5.25%, 2031 500,000 522,390 Mississippi Hospital Equipment & Facilities Authority Rev., Refunding & Improvement, Southwest Regional Medical Center, 5.5%, 2019 250,000 263,798 Mississippi Hospital Equipment & Facilities Authority, Refunding & Improvement, Southwest Regional Medical Center, 5.75%, 2023 250,000 265,120 - ------------------------------------------------------------------------------------------------------------ $ 14,887,660 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Environmental Services - 0.3% - ------------------------------------------------------------------------------------------------------------ Mississippi Business Finance Corp. (Solid Waste Management, Inc.), 4.4%, 2027 $ 250,000 $ 250,885 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Other - 0.3% - ------------------------------------------------------------------------------------------------------------ Virgin Islands Public Finance Authority, Refinery Facilities Rev. (Hovensa Refinery), 5.875%, 2022 $ 210,000 $ 228,875 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Paper - 3.3% - ------------------------------------------------------------------------------------------------------------ Jones County, MS, Solid Waste Disposal Rev. (International Paper Co.) "A", 5.8%, 2021 $ 500,000 $ 514,200 Lowndes County, MS, Solid Waste Disposal & Pollution Control Rev. (Weyerhaeuser Co.), 6.8%, 2022 1,250,000 1,525,675 Warren County, MS, Environmental Improvement Rev. (International Paper Co.), "A", 4.4%, 2015 750,000 737,558 - ------------------------------------------------------------------------------------------------------------ $ 2,777,433 - ------------------------------------------------------------------------------------------------------------ Miscellaneous Revenue - Entertainment & Tourism - 1.4% - ------------------------------------------------------------------------------------------------------------ Mississippi Development Bank, Special Obligation (Diamond Lakes Utilities), 6.25%, 2017 $ 1,150,000 $ 1,180,280 - ------------------------------------------------------------------------------------------------------------ Single Family Housing - State - 6.3% - ------------------------------------------------------------------------------------------------------------ Mississippi Home Corp. Rev., Single Family Rev., "A", GNMA, 6.3%, 2031 $ 195,000 $ 206,774 Mississippi Home Corp. Rev., Single Family Rev., "A-2", GNMA, 5.3%, 2023 690,000 705,594 Mississippi Home Corp. Rev., Single Family Rev., "A-2", GNMA, 6.95%, 2031 275,000 279,285 Mississippi Home Corp. Rev., Single Family Rev., "A-2", GNMA, 6.5%, 2032 290,000 297,836 Mississippi Home Corp. Rev., Single Family Rev., "B", GNMA, 6.625%, 2027 215,000 216,170 Mississippi Home Corp. Rev., Single Family Rev., "B", GNMA, 5.3%, 2035 785,000 803,455 Mississippi Home Corp. Rev., Single Family Rev., "B-2", GNMA, 6.375%, 2032 485,000 502,649 Mississippi Home Corp. Rev., Single Family Rev., "B-2", GNMA, 6.45%, 2033 520,000 541,029 Mississippi Home Corp. Rev., Single Family Rev., "C", GNMA, 4.95%, 2025 825,000 842,391 Mississippi Home Corp. Rev., Single Family Rev., "F", GNMA, 7.55%, 2027 154,000 162,293 Mississippi Home Corp. Rev., Single Family Rev., GNMA, 6.5%, 2024 825,000 826,427 - ------------------------------------------------------------------------------------------------------------ $ 5,383,903 - ------------------------------------------------------------------------------------------------------------ State & Local Agencies - 14.4% - ------------------------------------------------------------------------------------------------------------ Lamar County, MS, (Jail Project) MBIA, 5.1%, 2021 $ 430,000 $ 450,545 Mississippi Development Bank Special Obligations (Correctional Facilities), "A", AMBAC, 5.125%, 2025 1,000,000 1,056,090 Mississippi Development Bank Special Obligations (DeSoto County Regional Utility Authority), 5.25%, 2031 905,000 951,427 Mississippi Development Bank Special Obligations (Hinds County Public Improvements), FSA, 5.25%, 2030 1,110,000 1,190,519 Mississippi Development Bank Special Obligations (Mississippi, Ltd. Tax Hospital Rev.), 5.1%, 2020 1,000,000 1,046,920 Mississippi Development Bank Special Obligations (Natchez Mississippi Convention Center) AMBAC, 6%, 2013 (c) 750,000 861,773 Mississippi Development Bank Special Obligations (Public Improvement Board), 5%, 2023 750,000 754,365 Mississippi Development Bank Special Obligations (Southaven, MS, Recreation Facilities), 5.875%, 2014 375,000 394,500 Mississippi Development Bank Special Obligations (Southaven, MS, Recreation Facilities), 6.2%, 2020 400,000 423,392 Mississippi Development Bank Special Obligations (Tunica County Building Project), AMBAC, 5%, 2026 1,695,000 1,789,886 Mississippi Development Bank Special Obligations (Tupelo Fairgrounds), "A", AMBAC, 5%, 2017 785,000 819,587 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2013 (v)(z) 500,000 604,830 Walnut Grove, MS, Correctional Authority, AMBAC, 6%, 2009 (c) 1,750,000 1,904,140 - ------------------------------------------------------------------------------------------------------------ $ 12,247,974 - ------------------------------------------------------------------------------------------------------------ Tax - Other - 1.1% - ------------------------------------------------------------------------------------------------------------ Puerto Rico Convention Center, District Authority Hotel Occupancy Tax Rev., "A", CIFG, 4.5%, 2036 $ 750,000 $ 757,620 Virgin Islands Public Finance Authority Rev., "A", 5.25%, 2024 135,000 142,289 - ------------------------------------------------------------------------------------------------------------ $ 899,909 - ------------------------------------------------------------------------------------------------------------ Tobacco - 0.7% - ------------------------------------------------------------------------------------------------------------ Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, 5.375%, 2033 $ 230,000 $ 237,282 Guam Economic Development Authority Tobacco Settlement, "B", 5.5%, 2041 350,000 358,992 - ------------------------------------------------------------------------------------------------------------ $ 596,274 - ------------------------------------------------------------------------------------------------------------ Transportation - Special Tax - 1.5% - ------------------------------------------------------------------------------------------------------------ Mississippi Development Bank Special Obligations, Madison County (Road & Bridge) AMBAC, 5.1%, 2013 (c) $ 1,175,000 $ 1,277,014 - ------------------------------------------------------------------------------------------------------------ Universities - Colleges - 11.3% - ------------------------------------------------------------------------------------------------------------ Jackson State University, Educational Building Corp. Rev., (Campus Facilities), "A", FGIC, 5%, 2029 $ 3,100,000 $ 3,230,882 Jackson State University, Educational Building Corp. Rev., (Student Recreation Center), AMBAC, 5.125%, 2027 750,000 787,943 Medical Center, Educational Building Corp. Rev. (University of Mississippi Medical Center), "B", AMBAC, 5.5%, 2023 1,000,000 1,159,110 Mississippi State University Educational Building Corp. Rev., AMBAC, 5.5%, 2016 1,000,000 1,076,530 Mississippi State University Educational Building Corp. Rev., AMBAC, 5%, 2021 250,000 260,300 Mississippi Valley State University, Educational Building Corp., MBIA, 5.5%, 2021 890,000 954,231 University of Mississippi, Educational Building Corp. (Performing Arts Center), AMBAC, 5.25%, 2009 (c) 1,000,000 1,046,080 University of Southern Mississippi, Educational Building Corp. Rev., "B", FSA, 5%, 2032 1,000,000 1,055,240 - ------------------------------------------------------------------------------------------------------------ $ 9,570,316 - ------------------------------------------------------------------------------------------------------------ Utilities - Municipal Owned - 4.9% - ------------------------------------------------------------------------------------------------------------ Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2013 (v)(z) $ 1,000,000 $ 1,123,060 Mississippi Development Bank Special Obligations (Municipal Energy Agency Power Supply Project), "A", XLCA, 5%, 2026 1,000,000 1,054,450 Mississippi Development Bank Special Obligations (Okolona Electric System), 5.2%, 2011 (c) 1,010,000 1,079,357 Puerto Rico Electric Power Authority Rev., "II", 5.25%, 2031 875,000 922,618 - ------------------------------------------------------------------------------------------------------------ $ 4,179,485 - ------------------------------------------------------------------------------------------------------------ Water & Sewer Utility Revenue - 12.6% ----------------------------------------------------------------------------------------------------------- Harrison County, MS, Wastewater & Solid Waste Management, FGIC, 4.75%, 2027 $ 1,000,000 $ 1,014,370 Jackson, MS, Water & Sewer Systems Rev., FGIC, 5.25%, 2009 (c) 420,000 439,904 Mississippi Development Bank Special Obligations (Combined Water Sewer & Solid Waste Management) FSA, 5.25%, 2021 1,270,000 1,384,110 Mississippi Development Bank Special Obligations (Combined Water Sewer & Solid Waste Management) FSA, 5.05%, 2027 1,610,000 1,716,614 Mississippi Development Bank Special Obligations (Gulfport Water & Sewer Project) FSA, 5.625%, 2012 (c) 500,000 560,495 Mississippi Development Bank Special Obligations (Gulfport Water & Sewer Project), "A", FGIC, 5.25%, 2012 (c) 2,000,000 2,170,760 Mississippi Development Bank Special Obligations (Jackson Water & Sewer System Project) FSA, 5%, 2029 2,000,000 2,091,580 Mississippi Development Bank Special Obligations (Jackson Water & Sewer System Project), FGIC, 5%, 2032 250,000 259,565 Mississippi Development Bank Special Obligations, Grenada, MS, Water & Sewer Systems Project, "N", FSA, 5%, 2030 1,000,000 1,052,830 - ------------------------------------------------------------------------------------------------------------ $ 10,690,228 - ------------------------------------------------------------------------------------------------------------ TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $78,984,502) $ 83,045,558 - ------------------------------------------------------------------------------------------------------------ Floating Rate Demand Notes - 0.6% - ------------------------------------------------------------------------------------------------------------ Jackson County, MS, Pollution Control Rev. (Chevron USA, Inc.), 3.85%, due 10/02/06 $ 300,000 $ 300,000 Jackson County, MS, Pollution Control Rev. (Chevron USA, Inc.), 3.85%, due 10/02/06 200,000 200,000 - ------------------------------------------------------------------------------------------------------------ TOTAL FLOATING RATE DEMAND NOTES (IDENTIFIED COST, $500,000) $ 500,000 - ------------------------------------------------------------------------------------------------------------ TOTAL INVESTMENTS (IDENTIFIED COST, $79,484,502) (k) $ 83,545,558 - ------------------------------------------------------------------------------------------------------------ Other Assets, Less Liabilities - 1.4% 1,219,007 - ------------------------------------------------------------------------------------------------------------ NET ASSETS - 100.0% $ 84,764,565 - ------------------------------------------------------------------------------------------------------------ SWAP AGREEMENTS AT 9/30/06 UNREALIZED NOTIONAL CASH FLOWS CASH FLOWS APPRECIATION EXPIRATION AMOUNT COUNTERPARTY TO RECEIVE TO PAY (DEPRECIATION) - -------------------------------------------------------------------------------------------------------------------------------- INTEREST RATE SWAPS 12/01/07 USD 2,000,000 Merrill Lynch 7-Day BMA 2.795% (fixed rate) $ 17,217 1/04/19 USD 1,000,000 Citigroup 7-Day BMA 4.307% (fixed rate) (43,423) 11/09/26 USD 850,000 Goldman Sachs 5.787% (fixed rate) 3-Month LIBOR 52,238 - -------------------------------------------------------------------------------------------------------------------------------- $ 26,032 - -------------------------------------------------------------------------------------------------------------------------------- At September 30, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts. SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS PORTFOLIO OF INVESTMENTS 9/30/06 (unaudited) MFS(R) NEW YORK MUNICIPAL BOND FUND The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Municipal Bonds - 97.5% ISSUER SHARES/PAR VALUE ($) - ------------------------------------------------------------------------------------------------------------ Airport & Port Revenue - 3.6% - ------------------------------------------------------------------------------------------------------------ New York, NY, City Industrial Development Agency, Special Facilities Rev. (Terminal One Group), 5.5%, 2024 $ 1,000,000 $ 1,079,560 Port Authority NY & NJ, (120th Series) MBIA, 5.5%, 2018 1,500,000 1,538,565 Port Authority NY & NJ, (132nd Series), 5%, 2033 2,000,000 2,095,300 Port Authority NY & NJ, Special Obligation Rev. (JFK International), MBIA, 6.25%, 2015 1,000,000 1,175,250 - ------------------------------------------------------------------------------------------------------------ $ 5,888,675 - ------------------------------------------------------------------------------------------------------------ General Obligations - General Purpose - 7.5% - ------------------------------------------------------------------------------------------------------------ Commonwealth of Puerto Rico, ROLS, XLCA, 7.483%, 2017 (v)(z) $ 1,350,000 $ 1,741,311 Nassau County, NY, Health Systems Rev. (Nassau County), FSA, 6%, 2009 (c) 1,000,000 1,084,200 New York NY, "N", 5%, 2026 1,500,000 1,578,600 New York, NY, "D", 5%, 2028 2,000,000 2,091,820 New York, NY, "A", 6%, 2010 (c) 990,000 1,080,615 New York, NY, "B", 5.375%, 2017 1,250,000 1,335,762 New York, NY, "C-1", 5.25%, 2025 1,000,000 1,072,420 New York, NY, "G", 5%, 2028 2,000,000 2,092,560 New York, NY, "J", FGIC, 5.5%, 2026 200,000 202,790 New York, NY, Unrefunded, "A", 6%, 2019 10,000 10,795 - ------------------------------------------------------------------------------------------------------------ $ 12,290,873 - ------------------------------------------------------------------------------------------------------------ General Obligations - Improvement - 0.1% - ------------------------------------------------------------------------------------------------------------ Erie County, NY, Public Improvement, "A", FGIC, 5%, 2019 $ 140,000 $ 147,703 - ------------------------------------------------------------------------------------------------------------ General Obligations - Schools - 5.6% - ------------------------------------------------------------------------------------------------------------ Genesee Valley, NY, Central School District (Angelica Belmont), FGIC, 5.25%, 2028 $ 1,720,000 $ 1,862,296 North Babylon, NY, Union Free School District, "A", FGIC, 5.5%, 2018 2,415,000 2,565,455 Port Byron, NY, Central School District, AMBAC, ETM, 7.4%, 2012 (c) 500,000 598,750 Port Byron, NY, Central School District, AMBAC, ETM, 7.4%, 2013 (c) 500,000 613,140 Port Byron, NY, Central School District, AMBAC, ETM, 7.4%, 2014 (c) 500,000 626,325 Port Byron, NY, Central School District, AMBAC, ETM, 7.4%, 2015 (c) 500,000 638,610 Rome, NY, City School District, FSA, 5.5%, 2009 (c) 1,000,000 1,060,900 Washingtonville, NY, Central School Central District, FGIC, 7.35%, 2008 550,000 585,118 Washingtonville, NY, Central School Central District, FGIC, 7.35%, 2009 550,000 604,010 - ------------------------------------------------------------------------------------------------------------ $ 9,154,604 - ------------------------------------------------------------------------------------------------------------ Healthcare Revenue - Hospitals - 6.8% - ------------------------------------------------------------------------------------------------------------ Chautauqua County, NY, Industrial Development Agency, Civic Facilities Rev (Women's Christian Assn.), "A", 6.35%, 2017 $ 155,000 $ 159,016 Chautauqua County, NY, Industrial Development Agency, Civic Facilities Rev. (Women's Christian Assn.), "A", 6.4%, 2029 490,000 499,197 Fulton County, NY, Industrial Development Agency, Civic Facilities Rev. (Nathan Littauer Hospital), "A", 5.75%, 2009 615,000 624,822 Monroe County, NY, Industrial Development Agency, Civic Facilities Rev. (Highland Hospital of Rochester), 5%, 2025 1,000,000 1,028,680 Nassau County, NY, Industrial Development Agency, Civic Facilities Rev. (North Shore Health Systems), "D", 5.625%, 2010 500,000 528,140 New York Dormitory Authority Rev (Montefiore Medical Center), AMBAC, 5.25%, 2019 785,000 825,687 New York Dormitory Authority Rev. (North Shore Long Island Jewish Group), 5.5%, 2033 250,000 267,457 New York Dormitory Authority Rev. (White Plains Hospital), FHA, 5.375%, 2043 1,500,000 1,611,105 New York Dormitory Authority Rev., Non State Supported Debt (Kaleida Health), FHA, 4.6%, 2027 1,000,000 1,015,020 New York Dormitory Authority Rev., Non State Supported Debt (Mt. Sinai NYU Health), 5.5%, 2026 250,000 254,250 New York Dormitory Authority Rev., Non State Supported Debt (Mt. Sinai NYU Health), "C", 5.5%, 2026 500,000 508,500 New York Dormitory Authority Rev., Non State Supported Debt (NYU Hospitals Center), "A", 5%, 2026 800,000 820,944 New York, NY, Industrial Development Agency, Civic Facilities Rev. (Staten Island University Hospital), "B", 6.375%, 2031 495,000 517,018 New York, NY, Health & Hospital Corp. Rev., "A", 5.25%, 2017 760,000 790,552 Suffolk County, NY, Industrial Development Agency, Civic Facilities Rev. (Huntington Hospital), "C", 5.875%, 2032 1,000,000 1,061,970 Yonkers, NY, Industrial Development Agency, Civic Facilities Rev. (St. John's Riverside Hospital), "A", 7.125%, 2031 500,000 538,255 - ------------------------------------------------------------------------------------------------------------ $ 11,050,613 - ------------------------------------------------------------------------------------------------------------ Healthcare Revenue - Long Term Care - 0.7% - ------------------------------------------------------------------------------------------------------------ East Rochester, NY, Housing Authority Rev. (Woodland Village Project), 5.5%, 2033 $ 400,000 $ 405,580 Suffolk County, NY, Industrial Development Agency, Civic Facilities Rev. (Gurwin Jewish Phase II), 6.7%, 2039 385,000 418,430 Westchester County, NY, Industrial Development Agency, Civic Facilities Rev., Continuing Care Retirement (Kendal On Hudson), "A", 6.5%, 2034 300,000 318,615 - ------------------------------------------------------------------------------------------------------------ $ 1,142,625 - ------------------------------------------------------------------------------------------------------------ Human Services - 0.9% - ------------------------------------------------------------------------------------------------------------ Nassau County, NY, Industrial Development Agency, Civic Facility Rev. (Special Needs Facility), "B-1", 6.5%, 2017 $ 205,000 $ 215,426 New York Dormitory Authority Rev. (Jewish Board of Families & Children), AMBAC, 5%, 2023 695,000 732,732 New York, NY, Industrial Development Agency (PSCH, Inc.), 6.375%, 2033 500,000 534,110 - ------------------------------------------------------------------------------------------------------------ $ 1,482,268 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Airlines - 0.3% - ------------------------------------------------------------------------------------------------------------ New York, NY, Industrial Development Agency Rev. (American Airlines, Inc.), 7.625%, 2025 $ 350,000 $ 411,110 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Other - 1.0% - ------------------------------------------------------------------------------------------------------------ Onondaga County, NY, Industrial Development Agency, Sewer Facilities Rev. (Bristol-Meyers Squibb Co.), 5.75%, 2024 $ 1,000,000 $ 1,157,630 Virgin Islands Public Finance Authority, Refinery Facilities Rev. (Hovensa Refinery), 5.875%, 2022 430,000 468,648 - ------------------------------------------------------------------------------------------------------------ $ 1,626,278 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Paper - 1.6% - ------------------------------------------------------------------------------------------------------------ Essex County, NY, Industrial Development Agency, Pollution Control Rev. (International Paper Corp.), 5.55%, 2014 $ 750,000 $ 808,725 Essex County, NY, Industrial Development Agency, Pollution Control Rev. (International Paper Corp.), 6.15%, 2021 1,000,000 1,026,700 Essex County, NY, Industrial Development Agency, Pollution Control Rev. (International Paper Corp.), 6.45%, 2023 700,000 748,671 - ------------------------------------------------------------------------------------------------------------ $ 2,584,096 - ------------------------------------------------------------------------------------------------------------ Miscellaneous Revenue - Entertainment & Tourism - 0.6% - ------------------------------------------------------------------------------------------------------------ New York Liberty Development Corp. Rev. (National Sports Museum), 6.125%, 2019 $ 500,000 $ 517,385 New York, NY, City Industrial Development Agency Rev., Liberty Bonds (IAC/InterActiveCorp), 5%, 2035 500,000 504,100 - ------------------------------------------------------------------------------------------------------------ $ 1,021,485 - ------------------------------------------------------------------------------------------------------------ Miscellaneous Revenue - Other - 0.6% - ------------------------------------------------------------------------------------------------------------ New York, NY, Industrial Development Agency, Civic Facilities Rev. (United Jewish Appeal), "A", 5%, 2027 $ 1,000,000 $ 1,052,340 - ------------------------------------------------------------------------------------------------------------ Multi-Family Housing Revenue - 3.0% - ------------------------------------------------------------------------------------------------------------ New York Housing Finance Agency Rev. Multi-Family Housing, "A", 5.1%, 2041 $ 840,000 $ 861,260 New York, NY, City Housing Development Corp., "C", 5%, 2026 500,000 518,065 New York, NY, City Housing Development Corp., "E", 4.65%, 2025 1,000,000 1,021,810 New York, NY, Housing Development Corp., Multi-Family Housing Rev., 5.5%, 2034 2,000,000 2,067,680 New York, NY, Housing Development Corp., Multi-Family Housing Rev., "C", 5.6%, 2019 400,000 421,636 - ------------------------------------------------------------------------------------------------------------ $ 4,890,451 - ------------------------------------------------------------------------------------------------------------ Sales & Excise Tax Revenue - 0.3% - ------------------------------------------------------------------------------------------------------------ Schenectady, NY, Metroplex Development Authority Rev., "A", MBIA, 5.375%, 2021 $ 475,000 $ 516,757 - ------------------------------------------------------------------------------------------------------------ Single Family Housing - State - 3.9% - ------------------------------------------------------------------------------------------------------------ New York Mortgage Agency Rev., 4.6%, 2015 $ 2,000,000 $ 2,032,980 New York Mortgage Agency Rev., 5.1%, 2024 2,000,000 2,055,100 New York Mortgage Agency Rev., "130", 4.75%, 2030 1,500,000 1,509,375 New York Mortgage Agency Rev., "B", 5.85%, 2018 690,000 719,263 - ------------------------------------------------------------------------------------------------------------ $ 6,316,718 - ------------------------------------------------------------------------------------------------------------ Solid Waste Revenue - 0.6% - ------------------------------------------------------------------------------------------------------------ Niagara County, NY, Industrial Development Agency, Solid Waste Disposal Rev., (American Ref-fuel), "C", 5.625%, 2024 $ 850,000 $ 912,365 - ------------------------------------------------------------------------------------------------------------ State & Agency - Other - 5.8% - ------------------------------------------------------------------------------------------------------------ New York Dormitory Authority (City University), AMBAC, 5.75%, 2018 $ 800,000 $ 921,840 New York Dormitory Authority (Pace University), MBIA, 6%, 2010 (c) 1,700,000 1,863,285 New York Dormitory Authority (School Program), 6.25%, 2020 1,690,000 1,850,803 New York Dormitory Authority (State University), 5.375%, 2010 (c) 1,500,000 1,608,405 New York Dormitory Authority (State University), 5.875%, 2017 1,130,000 1,315,987 New York Dormitory Authority (Upstate Community Colleges), "A", FSA, 6%, 2010(c) 1,010,000 1,107,010 New York Municipal Bond Bank Agency, Special Program Rev., "A", AMBAC, 5.25%, 2015 715,000 762,834 - ------------------------------------------------------------------------------------------------------------ $ 9,430,164 - ------------------------------------------------------------------------------------------------------------ State & Local Agencies - 12.7% - ------------------------------------------------------------------------------------------------------------ New York City Industrial Development Agency (Yankee Stadium), FGIC, 5%, 2031 $ 1,000,000 $ 1,059,270 New York Dormitory Authority (City University), "A", 5.625%, 2016 2,450,000 2,776,903 New York Dormitory Authority (Judicial Institute at Pace), AMBAC, 5.5%, 2020 2,500,000 2,669,400 New York Dormitory Authority Rev., Mental Health Services, "A", MBIA, 5.75%, 2010 (c) 5,000 5,355 New York Dormitory Authority Rev., Mental Health Services, "B", MBIA, 5.25%, 2011 (c) 385,000 414,699 New York Dormitory Authority Rev., Mental Health Services, "D", FSA, 5.25%, 2010 (c) 35,000 37,207 New York Dormitory Authority Rev., Mental Health Services, Unrefunded, "B", MBIA, 5.25%, 2031 830,000 873,160 New York Dormitory Authority Rev., Mental Health Services, Unrefunded, "D", FSA, 5.25%, 2030 70,000 73,638 New York Dormitory Authority, Mental Health Services Facilities Improvement, "B", MBIA, 5.25%, 2011 (c) 785,000 845,555 New York Dormitory Authority, Mental Health Services Facilities Improvement, "D", FSA, 5.25%, 2010 (c) 895,000 951,439 New York Municipal Bond Bank Agency, Special School Purpose Rev., 5.25%, 2022 1,000,000 1,069,370 New York Urban Development Corp. (Correctional Facilities), AMBAC, 0%, 2009 5,000,000 4,600,450 New York Urban Development Corp. (State Facilities), AMBAC, 5.6%, 2015 2,750,000 3,058,440 Tobacco Settlement Financing Corp., NY, "A-1", 5.5%, 2018 2,000,000 2,165,180 - ------------------------------------------------------------------------------------------------------------ $ 20,600,066 - ------------------------------------------------------------------------------------------------------------ Tax - Other - 2.4% - ------------------------------------------------------------------------------------------------------------ New York, NY, Transitional Finance Authority Rev., "A", 5.75%, 2009 (c) $ 2,730,000 $ 2,922,902 New York, NY, Transitional Finance Authority Rev., "A", 5%, 2026 1,000,000 1,051,230 - ------------------------------------------------------------------------------------------------------------ $ 3,974,132 - ------------------------------------------------------------------------------------------------------------ Tobacco - 2.0% - ------------------------------------------------------------------------------------------------------------ Erie County, NY, Tobacco Asset Securitization Corp., 0%, 2047 $ 8,000,000 $ 726,000 Guam Economic Development Authority Tobacco Settlement, "B", 5.5%, 2041 400,000 410,276 New York County Tobacco Trust II, 5.625%, 2035 800,000 827,704 Rockland Tobacco Asset Securitization Corp., NY, Tobacco Asset Backed, "C", 0%, 2060 5,000,000 91,400 TSASC, Inc., NY, "1", 5%, 2034 750,000 759,345 Westchester, NY, Tobacco Asset Securitization Corp., 5.125%, 2045 500,000 505,440 - ------------------------------------------------------------------------------------------------------------ $ 3,320,165 - ------------------------------------------------------------------------------------------------------------ Toll Roads - 8.8% - ------------------------------------------------------------------------------------------------------------ New York Thruway Authority, General Rev., "E", 5.25%, 2008 (c) $ 200,000 $ 206,270 New York Thruway Authority, General Rev., "E", 5.25%, 2015 1,300,000 1,339,299 Niagara Falls, NY, Bridge Commission Toll Rev., RITES, FGIC, 6.565%, 2015 (v)(z) 3,500,000 4,095,490 Triborough Bridge & Tunnel Authority Rev., NY, "B", 5%, 2032 1,000,000 1,036,690 Triborough Bridge & Tunnel Authority Rev., NY, ETM, 6%, 2012 (c) 1,000,000 1,084,020 Triborough Bridge & Tunnel Authority Rev., NY, RITES, ETM, 7.035%, 2017 (v)(z) 5,000,000 6,202,300 Triborough Bridge & Tunnel Authority Rev., NY, Unrefunded "A", MBIA, 5%, 2032 310,000 322,722 - ------------------------------------------------------------------------------------------------------------ $ 14,286,791 - ------------------------------------------------------------------------------------------------------------ Transportation - Special Tax - 8.5% - ------------------------------------------------------------------------------------------------------------ Metropolitan Transportation Authority Rev., NY, "A", 5%, 2026 $ 1,500,000 $ 1,591,635 Metropolitan Transportation Authority Rev., NY, AMBAC, ETM, 5.75%, 2013 (c) 825,000 894,151 Metropolitan Transportation Authority Rev., NY, Dedicated Tax Fund Rev., 5.5%, 2015 (c) 750,000 853,005 Metropolitan Transportation Authority Rev., NY, ETM, 7.375%, 2008 (c) 755,000 787,699 Metropolitan Transportation Authority Rev., NY, FGIC, 5.875%, 2010 (c) 2,000,000 2,155,520 Metropolitan Transportation Authority Rev., NY, FGIC, 5%, 2025 2,500,000 2,621,750 Metropolitan Transportation Authority, NY, Commuter Facilities Rev., FGIC, 5.25%, 2011 (c) 1,000,000 1,075,340 New York Thruway Authority, General Rev., Highway & Bridges, "A", FSA, 5.8%, 2010 (c) 20,000 21,684 New York Thruway Authority, General Rev., Highway & Bridges, "B-1", FGIC, 5.4%, 2010 (c) 2,000,000 2,142,280 Puerto Rico Highway & Transportation Authority Rev., "Y", 5%, 2036 1,700,000 1,760,894 - ------------------------------------------------------------------------------------------------------------ $ 13,903,958 - ------------------------------------------------------------------------------------------------------------ Universities - Colleges - 4.7% - ------------------------------------------------------------------------------------------------------------ Amherst, NY, Industrial Development Agency Rev. (Daemen College), "A", 6%, 2011 (c) $ 1,000,000 $ 1,120,120 Cattaraugus County, NY, Industrial Development Agency Rev. (Jamestown Community College), "A", 6.4%, 2010 (c) 500,000 557,505 Hempstead Town, NY, Industrial Development Agency, Civic Facilities Rev. (Hofstra University), MBIA, 5.8%, 2015 1,500,000 1,532,010 New York Dormitory Authority Rev. (Fordham University), AMBAC, 7.2%, 2015 20,000 20,028 New York Dormitory Authority Rev. (St. John's University), "A", MBIA, 5%, 2017 300,000 317,844 New York Dormitory Authority Rev. (Yeshiva University), AMBAC, 5.125%, 2034 1,000,000 1,065,290 Onondaga County, NY, Industrial Development Agency Rev. (Le Moyne College), 5.625%, 2021 750,000 808,733 Schenectady, NY, Industrial Development Agency, Civic Facilities Rev. (Union College), "A", AMBAC, 5%, 2032 2,000,000 2,085,800 Utica, NY, Industrial Development Agency, Civic Facilities Rev. (Utica College), "A", 5.3%, 2008 75,000 75,813 - ------------------------------------------------------------------------------------------------------------ $ 7,583,143 - ------------------------------------------------------------------------------------------------------------ Universities - Dormitories - 0.7% - ------------------------------------------------------------------------------------------------------------ New York Dormitory Authority Rev. (New York University), "A", FGIC, 5%, 2029 $ 1,000,000 $ 1,056,400 - ------------------------------------------------------------------------------------------------------------ Utilities - Investor Owned - 1.4% - ------------------------------------------------------------------------------------------------------------ New York Environmental Facilities, Water Facilities Rev. (NY American Water Co.), 8.85%, 2015 $ 2,250,000 $ 2,257,515 - ------------------------------------------------------------------------------------------------------------ Utilities - Municipal Owned - 3.3% - ------------------------------------------------------------------------------------------------------------ Guam Power Authority Rev., "B-1", RITES, AMBAC, 6.565%, 2014 (v)(z) $ 500,000 $ 560,950 Long Island Power Authority, Electrical Systems Rev., "C", 5.5%, 2021 400,000 435,888 New York Power Authority Rev., 5.25%, 2040 3,000,000 3,140,820 New York Power Authority Rev., "A", 5%, 2021 1,000,000 1,059,280 Virgin Islands Water & Power Authority Rev., 5.5%, 2017 200,000 204,796 - ------------------------------------------------------------------------------------------------------------ $ 5,401,734 - ------------------------------------------------------------------------------------------------------------ Water & Sewer Utility Revenue - 10.1% - ------------------------------------------------------------------------------------------------------------ New York Environmental Facilities Corp., Clean Water & Drinking Rev., 5%, 2024 $ 1,005,000 $ 1,056,758 New York Environmental Facilities Corp., Clean Water & Drinking Rev., 5%, 2025 1,500,000 1,583,670 New York Environmental Facilities Corp., Clean Water & Drinking Rev., 5%, 2029 2,000,000 2,117,680 New York Environmental Facilities Corp., Pollution Control Rev., 5.75%, 2010 175,000 188,723 New York Environmental Facilities Corp., Pollution Control Rev., 6.875%, 2010 165,000 165,185 New York Environmental Facilities Corp., Pollution Control Rev., 7.25%, 2010 70,000 70,088 New York Environmental Facilities Corp., Pollution Control Rev., ETM, 5.75%, 2010 (c) 945,000 1,018,426 New York Environmental Facilities Corp., Pollution Control Rev., ETM, 5.75%, 2010(c) 1,115,000 1,201,635 New York Environmental Facilities Corp., Water Facilities Rev., 6%, 2031 1,005,000 1,078,606 New York Environmental Facilities Corp., Water Facilities Rev. (Spring Valley Water Co.), "B", AMBAC, 6.15%, 2024 1,500,000 1,501,485 New York, NY, Municipal Water & Sewer Finance Authority Rev., "A", 5%, 2027 1,500,000 1,569,330 New York, NY, Municipal Water & Sewer Finance Authority Rev., "A", ETM, 6%, 2010 (c) 620,000 673,506 New York, NY, Municipal Water & Sewer Finance Authority Rev., AMBAC, ETM, 6.75%, 2014 (c) 1,000,000 1,152,280 New York, NY, Municipal Water & Sewer Finance Authority Rev., FGIC, 5.25%, 2033 2,000,000 2,109,480 Suffolk County, NY, Water Authority Rev., MBIA, 5.1%, 2012 660,000 710,239 Suffolk County, NY, Water Authority Rev., MBIA, ETM, 5.1%, 2012 (c) 235,000 253,638 - ------------------------------------------------------------------------------------------------------------ $ 16,450,729 - ------------------------------------------------------------------------------------------------------------ TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $147,642,832) $158,753,758 - ------------------------------------------------------------------------------------------------------------ Floating Rate Demand Notes - 1.5% - ------------------------------------------------------------------------------------------------------------ New York, NY, Job Development Authority Rev., 3.8%, due 10/02/06 $ 800,000 $ 800,000 New York, NY, Municipal Water & Sewer Finance Authority Rev., 3.8%, due 10/02/06 1,600,000 1,600,000 - ------------------------------------------------------------------------------------------------------------ TOTAL FLOATING RATE DEMAND NOTES (IDENTIFIED COST, $2,400,000) $ 2,400,000 - ------------------------------------------------------------------------------------------------------------ TOTAL INVESTMENTS (IDENTIFIED COST, $150,042,832) (k) $161,153,758 - ------------------------------------------------------------------------------------------------------------ Other Assets, Less Liabilities - 1.0% 1,694,659 - ------------------------------------------------------------------------------------------------------------ NET ASSETS - 100.0% $162,848,417 - ------------------------------------------------------------------------------------------------------------ SWAP AGREEMENTS AT 9/30/06 UNREALIZED NOTIONAL CASH FLOWS CASH FLOWS APPRECIATION EXPIRATION AMOUNT COUNTERPARTY TO RECEIVE TO PAY (DEPRECIATION) - -------------------------------------------------------------------------------------------------------------------------------- INTEREST RATE SWAPS 12/01/07 USD 3,000,000 Merrill Lynch 7-Day BMA 2.795% (fixed rate) $ 25,823 3/01/19 USD 1,500,000 Merrill Lynch 7-Day BMA 3.976% (fixed rate) (20,911) 11/09/26 USD 1,650,000 Goldman Sachs 5.787% (fixed rate) 3-Month LIBOR 101,402 - -------------------------------------------------------------------------------------------------------------------------------- $106,314 - -------------------------------------------------------------------------------------------------------------------------------- At September 30, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts. SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS PORTFOLIO OF INVESTMENTS 9/30/06 (unaudited) MFS(R) NORTH CAROLINA MUNICIPAL BOND FUND The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Municipal Bonds - 97.7% - ------------------------------------------------------------------------------------------------------------- ISSUER SHARES/PAR VALUE ($) - ------------------------------------------------------------------------------------------------------------- Airport & Port Revenue - 5.4% ----------------------------------------------------------------------------------------------------------- Charlotte, NC, Airport Rev., "A", MBIA, 5%, 2029 $ 2,000,000 $ 2,108,735 Charlotte, NC, Airport Rev., "A", MBIA, 5%, 2034 4,485,000 4,710,679 Charlotte, NC, Airport Rev., "B", MBIA, 5.875%, 2019 1,000,000 1,067,350 Charlotte, NC, Airport Rev., "B", MBIA, 5.875%, 2020 3,775,000 4,026,189 Raleigh Durham, NC, Airport Authority Rev., "A", AMBAC, 5%, 2030 3,000,000 3,175,650 Raleigh Durham, NC, Airport Authority Rev., "A", FGIC, 5.25%, 2018 2,700,000 2,889,162 - ------------------------------------------------------------------------------------------------------------ $ 17,977,765 - ------------------------------------------------------------------------------------------------------------ General Obligations - General Purpose - 1.6% - ------------------------------------------------------------------------------------------------------------ Charlotte, NC, 5.5%, 2010 (c) $ 3,100,000 $ 3,361,144 Puerto Rico Commonwealth, Public Improvement, "A", 5.25%, 2030 2,000,000 2,135,000 - ------------------------------------------------------------------------------------------------------------ $ 5,496,144 - ------------------------------------------------------------------------------------------------------------ General Obligations - Improvement - 1.4% - ------------------------------------------------------------------------------------------------------------ New Hanover County, NC, Public Improvement, 5.8%, 2010 (c) $ 4,200,000 $ 4,629,954 - ------------------------------------------------------------------------------------------------------------ General Obligations - Schools - 3.8% - ------------------------------------------------------------------------------------------------------------ Brunswick County, NC, FGIC, 5%, 2020 $ 2,800,000 $ 2,980,852 Cumberland County, NC, 5.8%, 2010 (c) 4,400,000 4,787,112 Johnston County, NC, FGIC, 5.6%, 2010 (c) 2,000,000 2,166,620 New Hanover County, NC, Public Improvement, 5%, 2021 1,435,000 1,515,877 New Hanover County, NC, School Improvement, 5%, 2019 1,255,000 1,339,185 - ------------------------------------------------------------------------------------------------------------ $ 12,789,646 - ------------------------------------------------------------------------------------------------------------ Healthcare Revenue - Hospitals - 21.5% - ------------------------------------------------------------------------------------------------------------ Catawba County, NC, Hospital Rev. (Catawba Memorial Hospital), AMBAC, 5%, 2017 $ 1,200,000 $ 1,248,312 Charlotte-Mecklenburg, NC, Healthcare Systems Rev. (Carolinas Healthcare), "A", 5.125%, 2022 1,000,000 1,023,750 Charlotte-Mecklenburg, NC, Healthcare Systems Rev. (Carolinas Healthcare), "A", 5%, 2031 3,500,000 3,626,140 Cumberland County, NC, Hospital Facilities Rev. (Cumberland Hospital), MBIA, ETM, 0%, 2009 (c) 1,800,000 1,614,438 New Hanover County, NC, Hospital Rev. (New Hanover Regional Medical Center), MBIA, 5%, 2019 6,225,000 6,439,887 North Carolina Medical Care Commission (Cleveland County Healthcare), "A", AMBAC, 5%, 2035 1,305,000 1,360,162 North Carolina Medical Care Commission (Morehead Memorial Hospital), FHA, 5%, 2026 2,000,000 2,108,260 North Carolina Medical Care Commission (Northeast Medical Center), ' 5.25%, 2029 2,000,000 2,118,600 North Carolina Medical Care Commission (Novant Health), "A", MBIA, 5%, 2018 1,975,000 2,040,294 North Carolina Medical Care Commission, Health Care Facilities Rev. (Wakemed), AMBAC, 5%, 2021 3,500,000 3,695,440 North Carolina Medical Care Commission, Hospital Rev. (Betsy Johnson Health Care System), FSA, 5.125%, 2032 1,500,000 1,585,170 North Carolina Medical Care Commission, Hospital Rev. (Gaston Memorial Hospital), 5.5%, 2015 5,790,000 5,933,592 North Carolina Medical Care Commission, Hospital Rev. (Gaston Memorial Hospital), 5.5%, 2019 6,500,000 6,661,200 North Carolina Medical Care Commission, Hospital Rev. (Mission-St. Joseph Health Systems), 5.5%, 2021 2,825,000 3,023,626 North Carolina Medical Care Commission, Hospital Rev. (Mission-St. Joseph Health Systems), MBIA, 5.1%, 2018 1,500,000 1,551,270 North Carolina Medical Care Commission, Hospital Rev. (Pitt County Memorial Hospital), "B", 5%, 2008 (c) 3,000,000 3,117,930 North Carolina Medical Care Commission, Hospital Rev. (Rex Healthcare), AMBAC, 5%, 2017 5,000,000 5,152,050 North Carolina Medical Care Commission, Hospital Rev. (Southeastern Regional Medical Center), 5.375%, 2032 3,330,000 3,497,799 North Carolina Medical Care Commission, Hospital Rev. (Wilson Memorial Hospital), AMBAC, 0%, 2013 1,000,000 747,810 North Carolina Medical Care Commission, Hospital Rev. (Wilson Memorial Hospital), AMBAC, 0%, 2015 1,140,000 776,249 Northern Hospital District, Surry County, NC, Health Care Facilities Rev., ASST GTY, 5.5%, 2019 1,190,000 1,251,321 Northern Hospital District, Surry County, NC, Health Care Facilities Rev., ASST GTY, 5.1%, 2021 1,000,000 1,047,780 Onslow County, NC, Hospital Authority (Onslow Memorial Hospital Project), FHA, MBIA, 5%, 2026 1,315,000 1,401,225 Pitt County, NC, Rev., Pitt County Memorial Hospital, ETM, 5.25%, 2021 (c) 10,135,000 10,892,490 - ------------------------------------------------------------------------------------------------------------ $ 71,914,795 - ------------------------------------------------------------------------------------------------------------ Healthcare Revenue - Long Term Care - 1.3% - ------------------------------------------------------------------------------------------------------------ North Carolina Medical Care Commission, Health Care Facilities Rev. (Arbor Acres Community), 6.375%, 2032 $ 1,000,000 $ 1,051,320 North Carolina Medical Care Commission, Health Care Facilities Rev. (Deerfield), "A", 5%, 2023 1,000,000 1,041,750 North Carolina Medical Care Commission, Health Care Facilities Rev. (First Mortgage-Presbyterian Homes), 5.5%, 2031 750,000 779,130 North Carolina Medical Care Commission, Health Care Facilities Rev. (Givens Estates), 6.5%, 2032 800,000 859,720 North Carolina Medical Care Commission, Health Care Facilities Rev., "A", 6.125%, 2035 750,000 787,763 - ------------------------------------------------------------------------------------------------------------ $ 4,519,683 - ------------------------------------------------------------------------------------------------------------ Human Services - 0.7% - ------------------------------------------------------------------------------------------------------------ Cumberland County, NC, Finance Corp., Installment Payment Rev. (Detention Center & Mental Health), AMBAC, 5.625%, 2019 $ 2,125,000 $ 2,247,931 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Other - 0.3% - ------------------------------------------------------------------------------------------------------------ Virgin Islands Public Finance Authority, Refinery Facilities Rev. (Hovensa Refinery), 5.875%, 2022 $ 860,000 $ 937,297 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Paper - 2.2% - ------------------------------------------------------------------------------------------------------------ Columbus County, NC, Industrial Facilities & Pollution Control Financing Authority Rev. (International Paper Co.), "A", 5.8%, 2016 $ 2,000,000 $ 2,069,640 Haywood County, NC, Industrial Facilities & Pollution Control Financing Authority Rev. (Champion International Corp.), "A", 5.75%, 2025 5,400,000 5,451,894 - ------------------------------------------------------------------------------------------------------------ $ 7,521,534 - ------------------------------------------------------------------------------------------------------------ Multi-Family Housing Revenue - 2.3% - ------------------------------------------------------------------------------------------------------------ Charlotte, NC, Housing Authority Rev., Mortgage Rocky Branch II, GNMA, 4.65%, 2035 $ 2,000,000 $ 2,009,280 Mecklenburg County, NC (Little Rock Apartments), FNMA, 5.15%, 2022 1,000,000 1,049,400 North Carolina Housing Finance Agency, "H", FHA, 6.05%, 2028 3,500,000 3,554,110 North Carolina Medical Care Commission, Health Care Facilities Rev., "A", 5.8%, 2034 1,000,000 1,093,460 - ------------------------------------------------------------------------------------------------------------ $ 7,706,250 - ------------------------------------------------------------------------------------------------------------ Single Family Housing - State - 6.1% - ------------------------------------------------------------------------------------------------------------ North Carolina Housing Finance Agency Rev., "15-A", FSA, 4.95%, 2032 $ 435,000 $ 441,917 North Carolina Housing Finance Agency Rev., "19-A", 5.1%, 2030 2,430,000 2,491,892 North Carolina Housing Finance Agency Rev., "22-A", 4.8%, 2026 2,000,000 2,042,660 North Carolina Housing Finance Agency Rev., "23-A", 4.8%, 2037 3,000,000 3,031,380 North Carolina Housing Finance Agency Rev., "24-A", 4.75%, 2026 2,000,000 2,036,280 North Carolina Housing Finance Agency Rev., "25-A", 5.75%, 2037 2,000,000 2,146,900 North Carolina Housing Finance Agency Rev., "5-A", 5.55%, 2019 2,650,000 2,712,567 North Carolina Housing Finance Agency Rev., "7-A", 6.15%, 2020 625,000 645,569 North Carolina Housing Finance Agency Rev., "A", 5.25%, 2020 1,310,000 1,328,969 North Carolina Housing Finance Agency Rev., "A", 5.375%, 2023 245,000 252,115 North Carolina Housing Finance Agency Rev., "PP", FHA, 6.15%, 2017 1,100,000 1,126,862 North Carolina Housing Finance Agency Rev., "RR", 5.85%, 2028 2,040,000 2,074,150 - ------------------------------------------------------------------------------------------------------------ $ 20,331,261 - ------------------------------------------------------------------------------------------------------------ State & Agency - Other - 8.2% - ------------------------------------------------------------------------------------------------------------ Brunswick County, NC, Certificates of Participation, FSA, 5.5%, 2010 (c) $ 1,000,000 $ 1,075,450 Cabarrus County, NC, Installment Financing Contract, 5%, 2021 5,500,000 5,821,365 Carteret County, NC, AMBAC, 5.625%, 2020 1,010,000 1,080,791 Charlotte, NC, Certificates of Participation (Convention Facilities), AMBAC, 0%, 2006 1,075,000 1,068,862 Charlotte, NC, Certificates of Participation (Convention Facilities), AMBAC, 0%, 2008 3,000,000 2,777,640 Charlotte, NC, Certificates of Participation (Public Safety Facilities), "D", 5.5%, 2010 (c) 3,000,000 3,220,980 Charlotte, NC, Certificates of Participation (Transit Projects), "E", 5%, 2035 1,990,000 2,080,923 Harnett County, NC, Certificates of Participation, FSA, 5.25%, 2015 1,020,000 1,127,498 Harnett County, NC, Certificates of Participation, FSA, 5.5%, 2016 1,225,000 1,318,247 Pitt County, NC, Certificates of Participation (School Facilities Improvement), "A", FSA, 5.5%, 2020 1,250,000 1,329,413 Pitt County, NC, Certificates of Participation (School Facilities Improvement), "B", FSA, 5.75%, 2018 1,390,000 1,496,182 Pitt County, NC, Certificates of Participation (School Facilities Improvement), "B", FSA, 5.75%, 2019 1,390,000 1,495,237 Randolph County, NC, Certificates of Participation, FSA, 5.6%, 2009 (c) 3,000,000 3,184,230 Rockingham, NC, Certificates of Participation, AMBAC, 5.125%, 2024 350,000 374,021 - ------------------------------------------------------------------------------------------------------------ $ 27,450,839 - ------------------------------------------------------------------------------------------------------------ State & Local Agencies - 5.7% - ------------------------------------------------------------------------------------------------------------ Cabarrus County, NC, Development Corp., AMBAC, 5.3%, 2019 $ 1,250,000 $ 1,321,575 Forsyth County, NC, Certificates of Participation (Public Facilities & Equipment), 5.25%, 2013 (c) 1,230,000 1,350,872 Iredell County, NC, Public Facilities (School Projects), AMBAC, 5.5%, 2010 (c) 1,000,000 1,075,450 New Hanover County, NC, Certificates of Participation (New Hanover County Projects), AMBAC, 5.25%, 2011 (c) 1,635,000 1,777,719 Puerto Rico Housing Bank & Finance Agency (Kidder), 7.5%, 2006 7,000,000 7,026,670 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2016 (v)(z) 1,500,000 1,894,410 Rutherford County, NC, Certificates of Participation (Rutherford County School), AMBAC, 5%, 2023 840,000 887,846 Winston Salem, NC, Certificates of Participation, "A", 4.75%, 2031 1,000,000 1,019,350 Winston Salem, NC, Certificates of Participation, "C", 5%, 2011 (c) 2,575,000 2,732,745 - ------------------------------------------------------------------------------------------------------------ $ 19,086,637 - ------------------------------------------------------------------------------------------------------------ Tax - Other - 0.8% - ------------------------------------------------------------------------------------------------------------ Virgin Islands Public Finance Authority Rev., "A", 5.5%, 2022 $ 1,650,000 $ 1,707,998 Virgin Islands Public Finance Authority Rev., ASST GTY, 5.5%, 2018 1,000,000 1,048,670 - ------------------------------------------------------------------------------------------------------------ $ 2,756,668 - ------------------------------------------------------------------------------------------------------------ Tobacco - 0.6% - ------------------------------------------------------------------------------------------------------------ Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, 5.375%, 2033 $ 1,795,000 $ 1,851,830 Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, "A", 0%, 2050 2,000,000 133,340 - ------------------------------------------------------------------------------------------------------------ $ 1,985,170 - ------------------------------------------------------------------------------------------------------------ Transportation - Special Tax - 2.3% - ------------------------------------------------------------------------------------------------------------ Commonwealth of Puerto Rico, Highway & Transportation Authority Rev., RITES, FSA, 8.075%, 2018 (v)(z) $ 5,425,000 $ 7,611,167 - ------------------------------------------------------------------------------------------------------------ Universities - Colleges - 10.4% - ------------------------------------------------------------------------------------------------------------ University of North Carolina, Wilmington, Certificates of Participation (Student Housing Project), FGIC, 5%, 2028 $ 1,825,000 $ 1,935,376 Appalachian State University, NC, "A", FGIC, 5.125%, 2022 1,260,000 1,350,985 Appalachian State University, NC, Rev., "C", MBIA, 5%, 2030 1,000,000 1,058,930 Appalachian State University, NC, Rev., FSA, 5.6%, 2010 (c) 2,285,000 2,470,062 East Carolina University, NC, Rev., "A", AMBAC, 5.25%, 2021 1,375,000 1,479,143 North Carolina Capital Facilities, Finance Agency Rev. (Duke University), "A", 5%, 2041 2,000,000 2,092,860 North Carolina Capital Facilities, Finance Agency Rev. (Duke University), "A", 5.125%, 2041 5,000,000 5,201,750 North Carolina Capital Facilities, Finance Agency Rev. (Duke University), "A", 5.25%, 2042 2,000,000 2,108,060 North Carolina Capital Facilities, Finance Agency Rev. (High Point University), 5.125%, 2018 510,000 533,480 North Carolina Capital Facilities, Finance Agency Rev. (High Point University), 5.125%, 2021 300,000 311,649 North Carolina Capital Facilities, Finance Agency Rev. (Johnson & Wales University), "A", XLCA, 5.25%, 2022 1,870,000 2,015,767 North Carolina Capital Facilities, Finance Agency Rev. (Johnson & Wales University), "A", XLCA, 5%, 2033 3,385,000 3,517,963 Puerto Rico Industrial Tourist Authority (University Plaza), "A", MBIA, 5%, 2020 2,180,000 2,281,937 University of North Carolina, Greensboro Rev., "A", FSA, 5%, 2020 2,835,000 2,990,982 University of North Carolina, Systems Pool Rev., "C", AMBAC, 5%, 2029 2,000,000 2,101,920 University of North Carolina, University Rev., 5%, 2028 2,000,000 2,104,240 University of North Carolina, Wilmington Rev., "A", AMBAC, 5%, 2019 1,375,000 1,455,878 - ------------------------------------------------------------------------------------------------------------ $ 35,010,982 - ------------------------------------------------------------------------------------------------------------ Utilities - Investor Owned - 0.8% - ------------------------------------------------------------------------------------------------------------ Wake County, NC, Industrial Facilities & Pollution Control Rev. (Carolina Power & Light Co.), 5.375%, 2017 $ 2,500,000 $ 2,658,750 - ------------------------------------------------------------------------------------------------------------ Utilities - Municipal Owned - 13.7% - ------------------------------------------------------------------------------------------------------------ North Carolina Eastern Municipal Power Agency, "A", ETM, 7.5%, 2010 (c) $ 2,595,000 $ 2,906,893 North Carolina Eastern Municipal Power Agency, "A", ETM, 5%, 2017 (c) 3,120,000 3,410,098 North Carolina Eastern Municipal Power Agency, "A", MBIA, 7.5%, 2010 3,005,000 3,358,358 North Carolina Eastern Municipal Power Agency, "B", MBIA, 7.25%, 2007 5,000,000 5,044,000 North Carolina Eastern Municipal Power Agency, AMBAC, 6%, 2018 1,245,000 1,472,312 North Carolina Eastern Municipal Power Agency, RITES, AMBAC, 8.045%, 2018 (v)(z) 6,500,000 8,873,540 North Carolina Municipal Power Agency, Catawba Electric Rev., 6.375%, 2013 1,000,000 1,087,260 North Carolina Municipal Power Agency, Catawba Electric Rev., MBIA, 7%, 2007 5,000,000 5,041,050 North Carolina Municipal Power Agency, Catawba Electric Rev., MBIA, 6%, 2011 5,000,000 5,461,650 North Carolina Municipal Power Agency, Catawba Electric Rev., ROLS, MBIA, 7.026%, 2019 (v)(z) 5,000,000 5,752,400 North Carolina Municipal Power Agency, Catawba Electric Rev., ROLS, MBIA, 7.026%, 2020 (v)(z) 3,000,000 3,441,120 - ------------------------------------------------------------------------------------------------------------ $ 45,848,681 - ------------------------------------------------------------------------------------------------------------ Water & Sewer Utility Revenue - 8.6% - ------------------------------------------------------------------------------------------------------------ Broad River, NC, Water Authority Rev., MBIA, 5.75%, 2010 (c) $ 1,490,000 $ 1,615,086 Cary, NC, Combined Enterprise Systems Rev., 5%, 2026 1,000,000 1,043,770 Charlotte, NC, Storm Water Fee Rev., 6%, 2010 (c) 3,180,000 3,474,023 Charlotte, NC, Storm Water Fee Rev., 5%, 2034 3,675,000 3,853,348 Charlotte, NC, Water & Sewer Systems Rev., 5.75%, 2009 (c) 2,000,000 2,130,360 Charlotte, NC, Water & Sewer Systems Rev., 5.75%, 2010 (c) 3,075,000 3,333,146 Charlotte, NC, Water & Sewer Systems Rev., 5.5%, 2017 1,650,000 1,786,884 Durham County, NC, Enterprise Systems Rev., MBIA, 5%, 2023 1,675,000 1,771,983 Greensboro, NC, Enterprise Systems Rev., "A", 5.125%, 2018 1,490,000 1,588,623 Greensboro, NC, Enterprise Systems Rev., "A", 5.125%, 2019 1,750,000 1,862,735 Greenville, NC, Combined Enterprise Systems Rev., FSA, 5%, 2016 1,005,000 1,070,576 Greenville, NC, Combined Enterprise Systems Rev., FSA, 5.25%, 2019 1,170,000 1,263,729 Harnett County, NC, Water & Sewer Systems Rev., AMBAC, 5%, 2028 700,000 738,185 Kannapolis, NC, Water & Sewer Rev., "B", FSA, 5.25%, 2021 1,000,000 1,061,030 Raleigh, NC, Combined Enterprise Systems Rev., 5%, 2014 (c) 385,000 418,199 Winston Salem, NC, Water & Sewer Systems Rev., 5%, 2033 1,600,000 1,687,264 - ------------------------------------------------------------------------------------------------------------ $ 28,698,941 - ------------------------------------------------------------------------------------------------------------ TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $306,632,423) $327,180,095 - ------------------------------------------------------------------------------------------------------------ Floating Rate Demand Notes - 0.7% - ------------------------------------------------------------------------------------------------------------ Allegheny County, PA, Hospital Development Authority Rev. (Presbyterian University Hospital), "A", 3.8%, due 10/05/06 $ 400,000 $ 400,000 Bell County, TX, Health Facility Development Corp. Rev. (Scott & White Memorial Hospital), 3.89%, due 10/02/06 200,000 200,000 Lincoln County, WY, Pollution Control Rev. (Exxon Mobil Corp.), 3.75%, due 10/02/06 900,000 900,000 Lincoln County, WY, Pollution Control Rev. (Exxon Mobil Corp.), 3.81%, due 10/02/06 100,000 100,000 Lincoln County, WY, Pollution Control Rev. (Exxon Mobil Corp.), "B", 3.81%, due 10/02/06 200,000 200,000 Missouri Development Finance, Board of Cultural Facilities Rev. (Nelson Gallery), "B", 3.89%, due 10/02/06 100,000 100,000 Sevier County, TN, Public Building Authority, Government Public Improvement II, "B", 3.76%, due 10/05/06 200,000 200,000 State of Oregon, "73G", 3.8%, due 10/04/06 100,000 100,000 - ------------------------------------------------------------------------------------------------------------ TOTAL FLOATING RATE DEMAND NOTES (IDENTIFIED COST, $2,200,000) $ 2,200,000 - ------------------------------------------------------------------------------------------------------------ TOTAL INVESTMENTS (IDENTIFIED COST, $308,832,423) (k) $329,380,095 - ------------------------------------------------------------------------------------------------------------ Other Assets, Less Liabilities - 1.6% 5,310,334 - ------------------------------------------------------------------------------------------------------------ NET ASSETS - 100.0% $334,690,429 - ------------------------------------------------------------------------------------------------------------ SWAP AGREEMENTS AT 9/30/06 UNREALIZED NOTIONAL CASH FLOWS CASH FLOWS APPRECIATION EXPIRATION AMOUNT COUNTERPARTY TO RECEIVE TO PAY (DEPRECIATION) - -------------------------------------------------------------------------------------------------------------------------------- INTEREST RATE SWAPS 12/01/07 USD 7,000,000 Merrill Lynch 7-Day BMA 2.795% (fixed rate) $ 60,259 1/04/19 USD 2,500,000 Citigroup 7-Day BMA 4.307% (fixed rate) (108,558) 11/09/26 USD 3,300,000 Goldman Sachs 5.787% (fixed rate) 3-Month LIBOR 202,807 - -------------------------------------------------------------------------------------------------------------------------------- $ 154,508 - -------------------------------------------------------------------------------------------------------------------------------- At September 30, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts. SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS PORTFOLIO OF INVESTMENTS 9/30/06 (unaudited) MFS(R) PENNSYLVANIA MUNICIPAL BOND FUND The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Municipal Bonds - 96.3% - ------------------------------------------------------------------------------------------------------------ ISSUER SHARES/PAR VALUE ($) - ------------------------------------------------------------------------------------------------------------ Airport & Port Revenue - 2.0% - ------------------------------------------------------------------------------------------------------------ Allegheny County, PA, Airport Rev. (Pittsburgh International Airport), FGIC, 6.125%, 2017 $ 500,000 $ 535,255 Allegheny County, PA, Airport Rev. (Pittsburgh International Airport), MBIA, 5.75%, 2014 1,000,000 1,101,745 Susquehanna Area Regional Airport, AMBAC, 5.375%, 2023 500,000 531,645 - ------------------------------------------------------------------------------------------------------------ $ 2,168,645 - ------------------------------------------------------------------------------------------------------------ General Obligations - General Purpose - 6.6% - ------------------------------------------------------------------------------------------------------------ Allegheny County, PA, Unrefunded Balance, "C53", FGIC, 5.3%, 2018 $ 285,000 $ 302,927 Allegheny County, PA, Unrefunded Balance, "C53", FGIC, 5.4%, 2019 290,000 308,946 Commonwealth of Puerto Rico, ROLS, FGIC, 7.553%, 2015 (v)(z) 1,000,000 1,268,260 Commonwealth of Puerto Rico, ROLS, XLCA, 7.483%, 2017 (v)(z) 1,000,000 1,289,860 Erie County, PA, Convention Center, FGIC, 5%, 2025 500,000 528,775 Erie County, PA, Convention Center, FGIC, 5%, 2026 500,000 528,060 Luzerne County, PA, MBIA, 5.25%, 2025 500,000 533,300 North Huntingdon Township, PA, AMBAC, 5.25%, 2019 500,000 536,935 Pennsylvania Finance Authority Rev. (Penn Hills), "A", FGIC, 5.45%, 2010 (c) 85,000 91,222 Pennsylvania Finance Authority Rev. (Penn Hills), "A", FGIC, 5.45%, 2019 415,000 441,884 State of Pennsylvania, 6%, 2010 (c) 1,000,000 1,084,410 State of Pennsylvania, 6.25%, 2010 300,000 328,128 - ------------------------------------------------------------------------------------------------------------ $ 7,242,707 - ------------------------------------------------------------------------------------------------------------ General Obligations - Improvement - 0.5% - ------------------------------------------------------------------------------------------------------------ Pittsburgh, PA, FGIC, 5.75%, 2009 (c) $ 500,000 $ 530,550 - ------------------------------------------------------------------------------------------------------------ General Obligations - Schools - 20.8% - ------------------------------------------------------------------------------------------------------------ Allegheny Valley, PA, School District, "A", MBIA, 5%, 2028 $ 1,000,000 $ 1,056,380 Ambridge, PA, Area School District, MBIA, 5%, 2034 750,000 788,085 Butler, PA, School District, FGIC, 5.375%, 2018 500,000 516,715 Chambersburg, PA, School District, FSA, 5%, 2011 (c) 500,000 530,865 Chester County, PA, School Authority (School Intermediate Unit Project), "N", AMBAC, 5%, 2025 750,000 796,275 Downingtown, PA, School District, AMBAC, 5.65%, 2008 (c) 500,000 519,285 Exeter Township, PA, School District, FGIC, 5%, 2025 1,000,000 1,053,740 Garnet Valley, PA, School District, FGIC, 5.5%, 2015 750,000 820,043 Gateway, PA, Allegheny School District, FGIC, 5.2%, 2023 1,000,000 1,074,170 Gateway, PA, Allegheny School District, FGIC, 5%, 2032 1,890,000 1,977,677 North Allegheny, PA, School District, FGIC, 5.05%, 2022 590,000 615,978 North Schuylkill, PA, School District, FGIC, 5%, 2028 650,000 676,728 Palmyra, PA, School District, FGIC, 5.375%, 2016 820,000 890,315 Pennridge, PA, School District, MBIA, 5%, 2020 500,000 528,690 Pennridge, PA, School District, MBIA, 5%, 2021 500,000 528,110 Pennsylvania Public School Building (Garnet Valley School District), AMBAC, 5.5%, 2011 (c) 1,005,000 1,082,465 Perkiomen Valley, PA, School District, "A", FSA, 5.25%, 2028 1,000,000 1,070,820 Perkiomen Valley, PA, School District, FSA, 5%, 2011 (c) 280,000 296,307 Perkiomen Valley, PA, School District, FSA, 5%, 2019 220,000 230,432 Perkiomen Valley, PA, School District, FSA, 5%, 2025 1,260,000 1,322,597 Philadelphia, PA, School District, AMBAC, 5.375%, 2007 (c) 500,000 504,600 Philadelphia, PA, School District, FSA, 5.75%, 2011 (c) 500,000 543,505 Philadelphia, PA, School District, MBIA, 6%, 2010 (c) 500,000 538,315 South Park, PA, School District, FGIC, 5%, 2019 750,000 784,583 Southeastern Area, PA, Special Schools Authority Rev., 0%, 2007 360,000 347,213 State Public School Building Authority, PA School (Colonial Intermediate Unit 20), FGIC, 5%, 2030 500,000 526,790 State Public School Building Authority, PA School (Lease Philadelphia School District), FSA, 5.25%, 2024 1,000,000 1,072,990 State Public School Building Authority, PA School (Tuscarora School District), FSA, 5%, 2013 (c) 1,000,000 1,079,200 State Public School Building Authority, PA, School Rev., (Haverford Township Project), XLCA, 5%, 2027 1,000,000 1,056,240 - ------------------------------------------------------------------------------------------------------------ $ 22,829,113 - ------------------------------------------------------------------------------------------------------------ Healthcare Revenue - Hospitals - 11.3% - ------------------------------------------------------------------------------------------------------------ Allegheny County, PA, Hospital Development Authority Rev. (South Hills Health Systems), "B", 6.75%, 2025 $ 555,000 $ 599,211 Allegheny County, PA, Hospital Development Authority Rev. (UPMC Health Systems), MBIA, 5%, 2018 500,000 517,285 Allegheny County, PA, Hospital Development Authority Rev. (West Penn Allegheny Health), 9.25%, 2030 150,000 178,373 Allegheny County, PA, Hospital Development Authority Rev. (West Penn Allegheny Health), "B", 9.25%, 2022 50,000 59,416 Blair County, PA, Hospital Authority Rev. (Altoona), AMBAC, 5.5%, 2008 470,000 484,838 Erie County, PA, Hospital Authority Rev. (Hamot Health Foundation), AMBAC, 5.25%, 2017 675,000 727,630 Lancaster County, PA, Hospital Authority Rev., 5.5%, 2026 500,000 534,765 Lebanon County, PA, Health Facilities Authority Rev. (Good Samaritan Hospital), 5%, 2018 200,000 205,408 Lebanon County, PA, Health Facilities Authority Rev. (Good Samaritan Hospital), 6%, 2035 350,000 379,071 Lehigh County, PA, General Purpose Authority (Good Shepherd Group), "A", 5.625%, 2034 350,000 376,401 Lehigh County, PA, General Purpose Authority (Lehigh Valley Hospital), 5.25%, 2032 600,000 629,250 Lehigh County, PA, General Purpose Authority (Lehigh Valley Hospital), MBIA, 7%, 2016 250,000 294,295 Lehigh County, PA, General Purpose Authority (St. Luke's Bethlehem Hospital), 5.375%, 2033 600,000 630,312 Lehigh County, PA, Hospital Rev. (Lehigh Valley Hospital), FSA, 5.25%, 2019 500,000 533,995 Lycoming County, PA, Authority Hospital Rev. (Williamsport Hospital Obligation Group), CONNIE LEE, 5.375%, 2010 750,000 758,873 Monroe County, PA, Hospital Authority Rev. (Pocono Medical Center), 6%, 2043 750,000 804,443 Mount Lebanon, PA, Hospital Authority Rev. (St. Clair Memorial Hospital), 5.625%, 2032 400,000 422,516 Pennsylvania Higher Educational Facilities Authority Rev. (UPMC Health), 6.25%, 2018 100,000 110,774 Pennsylvania Higher Educational Facilities Authority Rev. (UPMC Health), 6%, 2031 650,000 710,951 Philadelphia, PA, Health & Educational Facilities Rev. (Jeane Health), ETM, 6.6%, 2010 (c) 115,000 121,709 Philadelphia, PA, Health & Educational Facilities Rev. (Temple University), 6.625%, 2023 250,000 253,668 Sayre, PA, Health Care Facilities Authority Rev. (Guthrie Health), 5.875%, 2031 500,000 543,455 Sayre, PA, Health Care Facilities Authority Rev. (Latrobe Hospital), AMBAC, 5.25%, 2012 (c) 585,000 634,947 South Central, PA, General Authority Rev., 5.625%, 2011 (c) 490,000 535,751 South Central, PA, General Authority Rev., Wellspan Health, ETM, 5.625%, 2026 (c) 110,000 118,962 St. Mary's Hospital Authority, PA, Health Systems Rev. (Catholic Health East), "B", 5.375%, 2034 750,000 798,353 West Shore, PA, Hospital Authority (Holy Spirit Hospital), 6.25%, 2032 350,000 376,429 - ------------------------------------------------------------------------------------------------------------ $ 12,341,081 - ------------------------------------------------------------------------------------------------------------ Healthcare Revenue - Long Term Care - 1.5% - ------------------------------------------------------------------------------------------------------------ Bucks County, PA, Industrial Development Authority Rev. (Ann's Choice, Inc.), 6.125%, 2025 $ 250,000 $ 265,418 Chartiers Valley, PA, Industrial & Commercial Development Authority (Asbury Health Center Project), 5.75%, 2022 250,000 258,523 Clarion, PA, Industrial Development Authority Rev. (Beverly Enterprises, Inc.), 7.5%, 2012 150,000 152,385 Cumberland County, PA, Municipal Authority Rev. (Wesley), "A", 7.25%, 2013 (c) 110,000 132,317 Cumberland County, PA, Municipal Authority Rev. (Wesley), "A", 7.25%, 2035 40,000 43,198 Lancaster County, PA, Hospital Authority Rev. (Willow Valley Retirement Project), 5.875%, 2031 500,000 527,535 Montgomery County, PA, Industrial Development Authority Rev. (Whitemarsh Continuing Care), 6.25%, 2035 250,000 265,000 - ------------------------------------------------------------------------------------------------------------ $ 1,644,376 - ------------------------------------------------------------------------------------------------------------ Human Services - 0.1% - ------------------------------------------------------------------------------------------------------------ Montgomery County, PA, Industrial Development Authority (Wordsworth Academy), 8%, 2024 $ 150,000 $ 150,782 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Environmental Services - 1.0% - ------------------------------------------------------------------------------------------------------------ New Morgan, PA, Industrial Development Authority, Solid Waste Disposal Rev. (New Morgan Landfill Co., Inc./Browning Ferris, Inc.), 6.5%, 2019 $ 530,000 $ 532,936 Westmoreland County, PA, Industrial Development Corp. (Waste Management), LOC, 5.1%, 2018 500,000 511,470 - ------------------------------------------------------------------------------------------------------------ $ 1,044,406 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Other - 1.8% - ------------------------------------------------------------------------------------------------------------ Bucks County, PA, Industrial Development Authority Rev. (USX Corp.), 5.4%, 2017 $ 300,000 $ 323,364 Pennsylvania Economic Development Financing Authority Rev. (Amtrak), 6.125%, 2021 150,000 161,711 Pennsylvania Economic Development Financing Authority, Solid Waste Disposal Rev. (Procter & Gamble), 5.375%, 2031 1,000,000 1,143,320 Virgin Islands Public Finance Authority, Refinery Facilities Rev. (Hovensa Refinery), 5.875%, 2022 270,000 294,268 - ------------------------------------------------------------------------------------------------------------ $ 1,922,663 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Paper - 0.6% - ------------------------------------------------------------------------------------------------------------ Erie County, PA, Industrial Development Authority, Pollution Control (International Paper Co.), "A", 5.3%, 2012 $ 650,000 $ 686,043 - ------------------------------------------------------------------------------------------------------------ Miscellaneous Revenue - Other - 0.1% - ------------------------------------------------------------------------------------------------------------ Gallery Certificate Trust, PA, Parking Rev., 4.5%, 2013 (n) $ 150,000 $ 149,996 - ------------------------------------------------------------------------------------------------------------ Parking - 1.9% - ------------------------------------------------------------------------------------------------------------ Philadelphia, PA, Public Parking Authority Rev., FSA, 5.625%, 2015 $ 1,000,000 $ 1,063,280 Pittsburgh, PA, Public Parking Authority Rev., "A", FGIC, 5%, 2025 500,000 528,565 Pittsburgh, PA, Public Parking Authority Rev., AMBAC, 6%, 2010 (c) 500,000 541,830 - ------------------------------------------------------------------------------------------------------------ $ 2,133,675 - ------------------------------------------------------------------------------------------------------------ Sales & Excise Tax Revenue - 0.5% - ------------------------------------------------------------------------------------------------------------ Pittsburgh & Allegheny County, PA, Sales Tax Rev. (Public Auditorium Hotel Room), AMBAC, 5.25%, 2017 $ 500,000 $ 526,465 - ------------------------------------------------------------------------------------------------------------ Single Family Housing Revenue - Local - 0.3% - ------------------------------------------------------------------------------------------------------------ Allegheny County, PA, Residential Financing Authority, Single Family Mortgage Rev., "RR", 4.75%, 2025 $ 375,000 $ 377,351 - ------------------------------------------------------------------------------------------------------------ Single Family Housing - State - 5.8% - ------------------------------------------------------------------------------------------------------------ Pennsylvania Housing Finance Agency, Single Family Mortgage Rev., 5.1%, 2020 $ 1,405,000 $ 1,436,332 Pennsylvania Housing Finance Agency, Single Family Mortgage Rev., 5.25%, 2021 750,000 760,763 Pennsylvania Housing Finance Agency, Single Family Mortgage Rev., 5.25%, 2033 515,000 522,267 Pennsylvania Housing Finance Agency, Single Family Mortgage Rev., 5%, 2034 755,000 767,299 Pennsylvania Housing Finance Agency, Single Family Mortgage Rev., "93-A", 5.75%, 2037 745,000 796,517 Pennsylvania Housing Finance Agency, Single Family Mortgage Rev., "94-A", 5.1%, 2031 500,000 513,605 Pennsylvania Housing Finance Agency, Single Family Mortgage Rev., "95-A", 4.875%, 2031 1,000,000 1,008,980 Pennsylvania Housing Finance Agency, Single Family Mortgage Rev., "A", 4.875%, 2026 500,000 510,880 - ------------------------------------------------------------------------------------------------------------ $ 6,316,643 - ------------------------------------------------------------------------------------------------------------ Solid Waste Revenue - 0.3% - ------------------------------------------------------------------------------------------------------------ Delaware County, PA, Industrial Development Authority, Resource Recovery Facilities Rev. (American Ref-Fuel Co.), "A", 6.2%, 2019 $ 300,000 $ 312,861 - ------------------------------------------------------------------------------------------------------------ State & Local Agencies - 3.8% - ------------------------------------------------------------------------------------------------------------ Delaware Valley, PA, Regional Finance Authority, RITES, AMBAC, 7.025%, 2018 (v) $ 500,000 $ 613,210 Northumberland County, PA (Country Careers & Arts Center), 6.65%, 2020 235,000 241,465 Pennsylvania Industrial Development Authority, Economic Development, AMBAC, 7%, 2007 300,000 302,448 Philadelphia, PA, Industrial Development Authority, FSA, 5.125%, 2026 1,000,000 1,055,400 Philadelphia, PA, Industrial Development Authority, FSA, 5.25%, 2030 750,000 787,688 Philadelphia, PA, Industrial Development Authority, MBIA, 5.35%, 2012 500,000 513,095 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2013 (v)(z) 500,000 604,830 - ------------------------------------------------------------------------------------------------------------ $ 4,118,136 - ------------------------------------------------------------------------------------------------------------ Student Loan Revenue - 1.4% - ------------------------------------------------------------------------------------------------------------ Pennsylvania Higher Education, Capital Acquisition Rev., MBIA, 5%, 2026 $ 1,500,000 $ 1,558,455 - ------------------------------------------------------------------------------------------------------------ Tax - Other - 0.6% - ------------------------------------------------------------------------------------------------------------ Pittsburgh & Allegheny County, PA, Sales Tax Rev. (Public Auditorium Hotel Room), AMBAC, 5.25%, 2013 $ 500,000 $ 526,745 Virgin Islands Public Finance Authority Rev., "A", 5.25%, 2024 135,000 142,289 - ------------------------------------------------------------------------------------------------------------ $ 669,034 - ------------------------------------------------------------------------------------------------------------ Tax Assessment - 0.3% - ------------------------------------------------------------------------------------------------------------ Allegheny County, PA, Redevelopment Authority Rev. (Pittsburgh Mills), 5.6%, 2023 $ 350,000 $ 369,842 - ------------------------------------------------------------------------------------------------------------ Tobacco - 0.4% - ------------------------------------------------------------------------------------------------------------ Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, 5.375%, 2033 $ 315,000 $ 324,973 Virgin Islands Tobacco Settlement Financing Corp., 5%, 2021 140,000 141,473 - ------------------------------------------------------------------------------------------------------------ $ 466,446 - ------------------------------------------------------------------------------------------------------------ Toll Roads - 0.2% - ------------------------------------------------------------------------------------------------------------ Pennsylvania Turnpike Commission, 5.5%, 2015 $ 250,000 $ 269,963 - ------------------------------------------------------------------------------------------------------------ Transportation - Special Tax - 6.0% - ------------------------------------------------------------------------------------------------------------ Allegheny County, PA, Port Authority Special Rev., MBIA, 6.25%, 2009 (c) $ 500,000 $ 535,835 Commonwealth of Puerto Rico Highway & Transportation Authority, "Y", 5.5%, 2036 1,020,000 1,113,116 Commonwealth of Puerto Rico Highway & Transportation Authority, ROLS, MBIA, 7.553%, 2020 (v)(z) 1,500,000 1,975,440 Pennsylvania Turnpike Commission, MBIA, 5%, 2024 1,775,000 1,872,022 Southeastern Pennsylvania Transportation Authority, Special Rev., FGIC, 5.25%, 2013 500,000 523,795 Southeastern Pennsylvania Transportation Authority, Special Rev., FGIC, 5.375%, 2017 500,000 513,535 - ------------------------------------------------------------------------------------------------------------ $ 6,533,743 - ------------------------------------------------------------------------------------------------------------ Universities - Colleges - 12.2% - ------------------------------------------------------------------------------------------------------------ Allegheny County, PA, (Chatham College), 5.95%, 2032 $ 335,000 $ 357,247 Allegheny County, PA, Higher Education Building Authority Rev. (Duquesne University), "A", XLCA, 5%, 2024 1,000,000 1,064,810 Cumberland County, PA, Municipal Authority (Dickinson College), AMBAC, 5.55%, 2010 (c) 535,000 575,457 Lycoming County, PA, (College of Technology), AMBAC, 5.25%, 2032 750,000 787,995 Pennsylvania Higher Educational Facilities (Allegheny College), 4.75%, 2031 500,000 506,510 Pennsylvania Higher Educational Facilities (Philadelphia University), 5.5%, 2020 500,000 530,335 Pennsylvania Higher Educational Facilities Authority Rev. (Clarion University Foundation), XLCA, 5%, 2023 1,000,000 1,050,080 Pennsylvania Higher Educational Facilities Authority Rev. (Drexel University), 5.2%, 2032 500,000 526,550 Pennsylvania Higher Educational Facilities Authority Rev. (Drexel University), MBIA, 5%, 2028 750,000 794,468 Pennsylvania Higher Educational Facilities Authority Rev. (Marywood University), MBIA, 5.5%, 2010 (c) 300,000 319,995 Pennsylvania Higher Educational Facilities Authority Rev. (Mercyhurst College), "B", 5%, 2023 500,000 512,480 Pennsylvania Higher Educational Facilities Authority Rev. (Widener University), 5.375%, 2029 300,000 318,048 Pennsylvania Higher Educational Facilities Authority Rev. (Widener University), 5%, 2031 300,000 307,914 Pennsylvania Public School Building Authority (Delaware County College), MBIA, 5.75%, 2010 (c) 500,000 538,290 Pennsylvania Public School Building Authority, Montgomery County Community College, AMBAC, 5%, 2025 500,000 531,500 Pennsylvania State University, 5%, 2029 1,400,000 1,483,538 Pennsylvania State University, "A", 5%, 2029 1,000,000 1,054,010 State Public School Building Authority, PA, Jefferson County (Dubois Technical School), FGIC, 5%, 2026 1,000,000 1,055,560 Union County, PA, Higher Educational Facilities Financing Authority, University Rev. (Bucknell University), 5.25%, 2021 1,000,000 1,077,360 - ------------------------------------------------------------------------------------------------------------ $ 13,392,147 - ------------------------------------------------------------------------------------------------------------ Universities - Dormitories - 0.6% - ------------------------------------------------------------------------------------------------------------ Pennsylvania Economic Development Financing Authority (Germantown Friends School Project), 5.35%, 2031 $ 600,000 $ 633,276 - ------------------------------------------------------------------------------------------------------------ Utilities - Cogeneration - 0.3% - ------------------------------------------------------------------------------------------------------------ Carbon County, PA, Industrial Development Authority Rev. (Panther Creek Partners), 6.65%, 2010 $ 110,000 $ 115,006 Pennsylvania Economic Development Financing Authority Rev., Resources Recovery Rev. (Colver), "G", 5.125%, 2015 100,000 99,707 Pennsylvania Economic Development Financing Authority Rev., Resources Recovery Rev. (Northampton Generating), 6.4%, 2009 150,000 150,032 - ------------------------------------------------------------------------------------------------------------ $ 364,745 - ------------------------------------------------------------------------------------------------------------ Utilities - Investor Owned - 1.2% - ------------------------------------------------------------------------------------------------------------ Lehigh County, PA, Industrial Development Authority Pollution Control Rev. (PPL Electric Utilities Corp.), "A", FGIC, 4.7%, 2029 $ 500,000 $ 512,905 Lehigh County, PA, Industrial Development Authority Rev. (PPL Electric Utilities Corp.), FGIC, 4.75%, 2027 750,000 772,403 - ------------------------------------------------------------------------------------------------------------ $ 1,285,308 - ------------------------------------------------------------------------------------------------------------ Utilities - Municipal Owned - 4.7% - ------------------------------------------------------------------------------------------------------------ Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2014 (v)(z) $ 2,170,000 $ 2,434,523 Philadelphia, PA, Gas Works Rev. (1998 General Ordinance), FSA, 5.25%, 2020 1,000,000 1,070,870 Philadelphia, PA, Gas Works Rev., FSA, 5.5%, 2009 (c) 1,000,000 1,060,350 Philadelphia, PA, Gas Works Rev., FSA, 5.5%, 2011 (c) 500,000 542,630 - ------------------------------------------------------------------------------------------------------------ $ 5,108,373 - ------------------------------------------------------------------------------------------------------------ Water & Sewer Utility Revenue - 9.5% - ------------------------------------------------------------------------------------------------------------ Allegheny County, PA, Sewer Rev., MBIA, 5.75%, 2010 (c) $ 750,000 $ 816,975 Bucks County, PA, (Suburban Water Co.), FGIC, 5.55%, 2032 1,000,000 1,062,180 Delaware County, PA, Water Quality Control Authority, Sewer Rev., FGIC, 5%, 2018 750,000 785,168 Fairview Township, PA, Sewer Rev., FGIC, 5.05%, 2018 750,000 788,640 Johnstown, PA, Redevelopment Authority, Sewer Rev., "A", FSA, 5%, 2034 1,500,000 1,574,460 Lancaster County, PA, Water & Sewer Authority Rev., MBIA, 5%, 2028 440,000 463,289 Unity Township, PA, Municipal Authority Sewer Rev., FSA, 5%, 2034 1,660,000 1,744,992 University Area Joint Authority, Sewer Rev., MBIA, 5%, 2023 1,500,000 1,561,935 Virgin Islands Water & Power Authority Rev., ASST GTY, 5.3%, 2018 500,000 520,275 Westmoreland County, PA, Municipal Authority Services Rev., FSA, 5.25%, 2026 1,000,000 1,086,240 - ------------------------------------------------------------------------------------------------------------ $ 10,404,154 - ------------------------------------------------------------------------------------------------------------ TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $100,602,449) $105,550,979 - ------------------------------------------------------------------------------------------------------------ Floating Rate Demand Notes - 2.1% Allegheny County, PA, Hospital Development Authority Rev. (Presbyterian University Hospital), "A", 3.8%, due 10/05/06 $ 800,000 $ 800,000 Allegheny County, PA, Hospital Development Authority Rev. (Presbyterian University Hospital), "B", 3.8%, due 10/05/06 1,240,000 1,240,000 Allegheny County, PA, Hospital Development Authority Rev. (Presbyterian University Hospital), "D", 3.8%, due 10/05/06 200,000 200,000 - ------------------------------------------------------------------------------------------------------------ TOTAL FLOATING RATE DEMAND NOTES (IDENTIFIED COST, $2,240,000) $ 2,240,000 - ------------------------------------------------------------------------------------------------------------ TOTAL INVESTMENTS (IDENTIFIED COST, $102,842,449) (k) $107,790,979 - ------------------------------------------------------------------------------------------------------------ Other Assets, Less Liabilities - 1.6% 1,803,553 - ------------------------------------------------------------------------------------------------------------ NET ASSETS - 100.0% $109,594,532 - ------------------------------------------------------------------------------------------------------------ SWAP AGREEMENTS AT 9/30/06 UNREALIZED NOTIONAL CASH FLOWS CASH FLOWS APPRECIATION EXPIRATION AMOUNT COUNTERPARTY TO RECEIVE TO PAY (DEPRECIATION) - -------------------------------------------------------------------------------------------------------------------------------- INTEREST RATE SWAPS 12/01/07 USD 2,000,000 Merrill Lynch 7-Day BMA 2.795% (fixed rate) $ 17,217 12/06/16 USD 1,000,000 Merrill Lynch 3-Month LIBOR 5.569% (fixed rate) (30,673) 12/13/16 USD 1,500,000 Merrill Lynch 7-Day BMA 3.848% (fixed rate) (13,594) 3/26/17 USD 2,000,000 Goldman Sachs 7-Day BMA 3.710% (fixed rate) 5,985 3/01/19 USD 2,000,000 Merrill Lynch 7-Day BMA 3.976% (fixed rate) (27,882) - -------------------------------------------------------------------------------------------------------------------------------- $(48,947) - -------------------------------------------------------------------------------------------------------------------------------- At September 30, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts. SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS PORTFOLIO OF INVESTMENTS 9/30/06 (unaudited) MFS(R) SOUTH CAROLINA MUNICIPAL BOND FUND The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Municipal Bonds - 98.0% - ------------------------------------------------------------------------------------------------------------ ISSUER SHARES/PAR VALUE ($) - ------------------------------------------------------------------------------------------------------------ Airport & Port Revenue - 3.2% - ------------------------------------------------------------------------------------------------------------ Horry County, SC, "A", FSA, 5.7%, 2027 $ 2,250,000 $ 2,291,419 Richland Lexington, SC, Airport Rev. (Columbia Airport), "A", FSA, 5%, 2026 1,000,000 1,038,180 Richland Lexington, SC, Airport Rev. (Columbia Airport), FSA, 5.125%, 2025 1,500,000 1,578,630 - ------------------------------------------------------------------------------------------------------------ $ 4,908,229 - ------------------------------------------------------------------------------------------------------------ General Obligations - General Purpose - 7.0% - ------------------------------------------------------------------------------------------------------------ Commonwealth of Puerto Rico, RITES, ETM, 7.094%, 2018 (c)(v)(z) $ 2,000,000 $ 2,301,000 Commonwealth of Puerto Rico, RITES, ETM, 7.094%, 2019 (c)(v)(z) 1,750,000 2,010,680 Commonwealth of Puerto Rico, RITES, MBIA, 7.594%, 2020 (v)(z) 2,000,000 2,299,760 Hilton Head Island, SC, Rev., MBIA, 5.125%, 2022 1,000,000 1,068,700 Horry County, SC, Hospital Fee Special Obligation, 6%, 2015 915,000 995,785 Puerto Rico Commonwealth, Public Improvement, "A", 5.25%, 2030 1,000,000 1,067,500 Richland Lexington Riverbanks, SC, Parks District, FGIC, 5.8%, 2018 1,000,000 1,060,170 - ------------------------------------------------------------------------------------------------------------ $ 10,803,595 - ------------------------------------------------------------------------------------------------------------ General Obligations - Improvement - 1.3% - ------------------------------------------------------------------------------------------------------------ Beaufort County, SC, FGIC, 5.25%, 2018 $ 1,000,000 $ 1,047,470 Commonwealth of Puerto Rico, RITES, FSA, 8.107%, 2016 (v)(z) 850,000 980,118 - ------------------------------------------------------------------------------------------------------------ $ 2,027,588 - ------------------------------------------------------------------------------------------------------------ General Obligations - Schools - 10.3% - ------------------------------------------------------------------------------------------------------------ Anderson County, SC, School District, "B", 5.5%, 2018 $ 1,465,000 $ 1,557,720 Berkeley County, SC, School District, 5%, 2008 (c) 2,000,000 2,080,020 Chesterfield County, SC, School District, FSA, 5%, 2023 3,000,000 3,145,980 Darlington County, SC, School District, FSA, 5%, 2027 2,770,000 2,953,817 Lexington County, SC, School District, "A", 4.75%, 2028 1,000,000 1,037,330 Orangeburg County, SC, Consolidated School District, FSA, 5.25%, 2020 1,065,000 1,140,892 Orangeburg County, SC, Consolidated School District, FSA, 5.375%, 2022 2,050,000 2,222,344 Richland County, SC, School District, 5.1%, 2021 1,750,000 1,856,435 - ------------------------------------------------------------------------------------------------------------ $ 15,994,538 - ------------------------------------------------------------------------------------------------------------ Healthcare Revenue - Hospitals - 21.1% - ------------------------------------------------------------------------------------------------------------ Charleston County, SC, Hospital Facilities Rev. (Medical Society Health), MBIA, ETM, 5%, 2022 (c) $ 2,450,000 $ 2,469,061 Florence County, SC, Hospital Rev. (McLeod Regional Medical Center), "A", FSA, 5%, 2031 2,000,000 2,098,760 Florence County, SC, Hospital Rev. (McLeod Regional Medical Center), "A", FSA, 5.25%, 2034 2,000,000 2,132,620 Greenville, SC, Hospital Systems, Hospital Facilities Rev., 6%, 2020 3,400,000 3,990,614 Greenwood County, SC, Hospital Facilities Rev. (Self Memorial Hospital), 5.5%, 2021 1,000,000 1,057,990 Lexington County, SC, Health Services District, Inc., 5.5%, 2032 250,000 268,710 Lexington County, SC, Health Services District, Inc., 5.5%, 2037 250,000 267,875 Lexington County, SC, Health Services District, Inc., Hospital Rev., Refunding & Improvement, 5.5%, 2032 1,000,000 1,070,610 Lexington County, SC, Health Services District, Inc., Hospital Rev., Refunding & Improvement, FSA, 5.125%, 2021 1,500,000 1,564,545 South Carolina Jobs & Economic Development Authority Rev. (Bon Secours Health Systems, Inc.), "A", 5.625%, 2030 1,250,000 1,326,425 South Carolina Jobs & Economic Development Authority, Hospital Facilities Rev. (Anderson Area Medical Center, Inc.), MBIA, 5.25%, 2015 1,750,000 1,776,093 South Carolina Jobs & Economic Development Authority, Hospital Facilities Rev. (Georgetown Memorial Hospital), AMBAC, 6%, 2014 1,000,000 1,076,680 South Carolina Jobs & Economic Development Authority, Hospital Facilities Rev. (Georgetown Memorial Hospital), AMBAC, 5%, 2023 1,000,000 1,022,170 South Carolina Jobs & Economic Development Authority, Hospital Facilities Rev. (Georgetown Memorial Hospital), ASST GTY, 5.25%, 2021 1,500,000 1,574,070 South Carolina Jobs & Economic Development Authority, Hospital Facilities Rev. (Palmetto Health Alliance), 6.25%, 2031 750,000 820,808 South Carolina Jobs & Economic Development Authority, Hospital Facilities Rev. (Tuomey), CIFG, 5%, 2030 1,000,000 1,050,430 South Carolina Medical University, Hospital Facilities Rev., "A", MBIA, 5%, 2031 3,100,000 3,228,619 Spartanburg County, SC, Health Service Rev., AMBAC, 5.3%, 2020 2,500,000 2,521,450 Spartanburg County, SC, Health Service Rev., AMBAC, 5.3%, 2025 1,000,000 1,008,580 Spartanburg County, SC, Health Service Rev., FSA, 5.25%, 2032 2,250,000 2,364,345 - ------------------------------------------------------------------------------------------------------------ $ 32,690,455 - ------------------------------------------------------------------------------------------------------------ Healthcare Revenue - Long Term Care - 1.4% - ------------------------------------------------------------------------------------------------------------ Greenville County, SC, Hospital Rev. (Chestnut Hill), "A", 8%, 2015 $ 1,375,000 $ 1,377,791 South Carolina Jobs & Economic Development Authority, First Mortgage (Wesley Commons), 5.125%, 2026 400,000 396,772 South Carolina Jobs & Economic Development Authority, Residential Care Facilities Rev. (Episcopal Home), "A", 6.375%, 2032 400,000 415,160 - ------------------------------------------------------------------------------------------------------------ $ 2,189,723 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Chemicals - 0.5% - ------------------------------------------------------------------------------------------------------------ York County, SC, Industrial Rev., Exempt Facilities Hoechst Celanese, 5.7%, 2024 $ 850,000 $ 850,459 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Other - 1.1% - ------------------------------------------------------------------------------------------------------------ Calhoun County, SC, Solid Waste Disposal Facilities Rev. (Carolina Eastman Co.), ETM, 6.75%, 2017 (c) $ 1,000,000 $ 1,216,860 Virgin Islands Public Finance Authority, Refinery Facilities Rev. (Hovensa Refinery), 5.875%, 2022 385,000 419,604 - ------------------------------------------------------------------------------------------------------------ $ 1,636,464 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Paper - 2.1% - ------------------------------------------------------------------------------------------------------------ Darlington County, SC, Industrial Development Rev. (Sonoco Products Co.), 6.125%, 2025 $ 1,500,000 $ 1,515,975 Florence County, SC, Industrial Development Rev. (Stone Container Co.), 7.375%, 2007 225,000 226,656 Georgetown County, SC, Environmental Improvement Rev., International Paper, "A", 5.3%, 2028 500,000 511,340 Richland County, SC, Environmental Improvement Rev., International Paper, "A", 6.1%, 2023 1,000,000 1,083,770 - ------------------------------------------------------------------------------------------------------------ $ 3,337,741 - ------------------------------------------------------------------------------------------------------------ Miscellaneous Revenue - Entertainment & Tourism - 1.6% - ------------------------------------------------------------------------------------------------------------ Myrtle Beach, SC, Hospitality Fee Rev., "A", FGIC, 5%, 2036 $ 510,000 $ 534,414 South Carolina Jobs & Economic Development Authority Rev. (Myrtle Beach Convention), "B", MBIA, 5.125%, 2018 570,000 597,314 South Carolina Jobs & Economic Development Authority Rev. (Myrtle Beach Convention), "B", MBIA, 5.125%, 2019 595,000 627,773 South Carolina Jobs & Economic Development Authority Rev. (Myrtle Beach Convention), "B", MBIA, 5.125%, 2020 630,000 663,636 - ------------------------------------------------------------------------------------------------------------ $ 2,423,137 - ------------------------------------------------------------------------------------------------------------ Multi-Family Housing Revenue - 1.4% - ------------------------------------------------------------------------------------------------------------ North Charleston SC, Housing Authority Rev. (Horizon Village), "A", FHA, 5%, 2038 $ 1,000,000 $ 1,008,140 North Charleston SC, Housing Authority Rev. (Horizon Village), "A", FHA, 5.1%, 2041 1,210,000 1,219,801 - ------------------------------------------------------------------------------------------------------------ $ 2,227,941 - ------------------------------------------------------------------------------------------------------------ Single Family Housing - State - 3.4% - ------------------------------------------------------------------------------------------------------------ South Carolina Housing, Finance & Development Authority Mortgage Rev., "A-2", AMBAC, 5.05%, 2027 $ 1,000,000 $ 1,028,390 South Carolina Housing, Finance & Development Authority Mortgage Rev., "A-2", FSA, 5.5%, 2034 1,045,000 1,082,756 South Carolina Housing, Finance & Development Authority Mortgage Rev., "A-2", FSA, 5.2%, 2035 990,000 1,014,800 South Carolina Housing, Finance & Development Authority Rev., "A-2", FSA, 6%, 2020 375,000 380,996 South Carolina Housing, Finance & Development Authority Rev., "A-2", FSA, 5.35%, 2024 1,715,000 1,769,640 - ------------------------------------------------------------------------------------------------------------ $ 5,276,582 - ------------------------------------------------------------------------------------------------------------ State & Agency - Other - 1.0% - ------------------------------------------------------------------------------------------------------------ Greenville County, SC (University Center), "A", AMBAC, 5.25%, 2009 (c) $ 1,000,000 $ 1,050,090 South Carolina Water Resources Authority Rev. (Local Government Program), "A", 7.25%, 2020 575,000 575,759 - ------------------------------------------------------------------------------------------------------------ $ 1,625,849 - ------------------------------------------------------------------------------------------------------------ State & Local Agencies - 3.9% - ------------------------------------------------------------------------------------------------------------ North Charleston, SC, Municipal Golf Course Mortgage Rev., 5.5%, 2009 (c) $ 1,000,000 $ 1,057,450 Puerto Rico Public Finance Corp., 5.75%, 2007 (c) 1,000,000 1,007,380 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2013 (v)(z) 1,375,000 1,663,283 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2019 (v)(z) 1,300,000 1,680,120 Spartanburg, SC, Public Facilities Corp. (Renaissance Park), AMBAC, 5.125%, 2025 685,000 722,312 - ------------------------------------------------------------------------------------------------------------ $ 6,130,545 - ------------------------------------------------------------------------------------------------------------ Tax - Other - 0.1% - ------------------------------------------------------------------------------------------------------------ Virgin Islands Public Finance Authority Rev., "A", 5.25%, 2024 $ 180,000 $ 189,718 - ------------------------------------------------------------------------------------------------------------ Tax Assessment - 0.3% - ------------------------------------------------------------------------------------------------------------ Lancaster County, SC, Assessment Rev. (Sun City Carolina Lakes), 5.45%, 2037 $ 500,000 $ 507,730 - ------------------------------------------------------------------------------------------------------------ Tobacco - 0.7% - ------------------------------------------------------------------------------------------------------------ South Carolina Tobacco Settlement Authority, 6.375%, 2028 $ 1,000,000 $ 1,073,360 - ------------------------------------------------------------------------------------------------------------ Transportation - Special Tax - 3.5% - ------------------------------------------------------------------------------------------------------------ South Carolina Transportation Infrastructure Rev., "A", AMBAC, 5%, 2023 $ 500,000 $ 521,730 South Carolina Transportation Infrastructure Rev., "A", AMBAC, 5%, 2027 2,000,000 2,103,480 South Carolina Transportation Infrastructure Rev., "A", AMBAC, 5%, 2033 1,645,000 1,728,994 South Carolina Transportation Infrastructure Rev., "A", MBIA, 5.375%, 2009 (c) 1,000,000 1,061,240 - ------------------------------------------------------------------------------------------------------------ $ 5,415,444 - ------------------------------------------------------------------------------------------------------------ Universities - Colleges - 11.8% - ------------------------------------------------------------------------------------------------------------ Clemson University, University Rev., AMBAC, 6.25%, 2009 (c) $ 1,250,000 $ 1,344,688 College of Charleston, SC, Academic & Administrative Facilities Rev., "B", XLCA, 5%, 2024 800,000 842,344 College of Charleston, SC, Academic & Administrative Facilities Rev., "B", XLCA, 5.125%, 2034 1,510,000 1,598,984 College of Charleston, SC, Higher Education Facility Rev., "A", FGIC, 5.25%, 2028 2,435,000 2,581,270 South Carolina Educational Facilities Authority (Furman University), 5%, 2038 1,000,000 1,043,970 South Carolina Educational Facilities Authority (Furman University), AMBAC, 5.375%, 2020 1,245,000 1,335,835 South Carolina Educational Facilities Authority (Furman University), AMBAC, 5.5%, 2030 2,000,000 2,134,360 South Carolina Jobs & Economic Development Authority, Student Housing Rev. (Francis Marion University), "A", MBIA, 5%, 2034 1,945,000 2,033,225 University of South Carolina, University Rev., "A", AMBAC, 5%, 2034 3,665,000 3,810,464 University of South Carolina, University Rev., "A", FGIC, 5.625%, 2010 (c) 1,555,000 1,665,250 - ------------------------------------------------------------------------------------------------------------ $ 18,390,390 - ------------------------------------------------------------------------------------------------------------ Utilities - Municipal Owned - 10.4% - ------------------------------------------------------------------------------------------------------------ Camden, SC, Public Utilities Rev., MBIA, 5.5%, 2007 (c) $ 1,425,000 $ 1,464,644 Camden, SC, Public Utilities Rev., MBIA, 5.5%, 2017 75,000 77,099 Easley, SC, Utility Rev., FSA, 5%, 2027 1,000,000 1,050,710 Easley, SC, Utility Rev., Refunding & Improvement, FSA, 5%, 2034 2,000,000 2,112,700 Greenwood, SC, Combined Public Utility, Refunding & Improvement Systems, MBIA, 5%, 2021 175,000 185,344 Orangeburg County, SC, Solid Waste Disposal Facilities Rev., Electric & Gas, AMBAC, 5.7%, 2024 2,000,000 2,002,040 Piedmont, SC, Municipal Power Agency, FGIC, 6.25%, 2021 2,600,000 3,207,854 Puerto Rico Electric Power Authority, RITES, FSA, 6.558%, 2015 (v)(z) 1,000,000 1,055,720 South Carolina Public Service Authority, "A", AMBAC, 5%, 2034 2,000,000 2,086,200 South Carolina Public Service Authority, "A", MBIA, 5.5%, 2018 200,000 212,288 South Carolina Public Service Authority, "A", MBIA, 5%, 2030 1,000,000 1,056,760 South Carolina Public Service Authority, "B", FSA, 5.125%, 2037 1,500,000 1,564,575 - ------------------------------------------------------------------------------------------------------------ $ 16,075,934 - ------------------------------------------------------------------------------------------------------------ Water & Sewer Utility Revenue - 11.9% - ------------------------------------------------------------------------------------------------------------ Anderson County, SC, Joint Municipal Water, FSA, 5%, 2032 $ 1,000,000 $ 1,040,100 Anderson County, SC, Water & Sewer Systems Rev., FGIC, 5.125%, 2032 2,000,000 2,115,940 Berkeley County, SC, Water & Sewer Systems Rev., "A", FSA, 4.75%, 2029 1,000,000 1,033,650 Charleston, SC, Waterworks & Sewer Rev., Capital Improvement, "B", 5%, 2028 1,000,000 1,042,350 Columbia, SC, Waterworks & Sewer Systems Rev., 6%, 2010 (c) 2,000,000 2,149,680 Columbia, SC, Waterworks & Sewer Systems Rev., FSA, 5%, 2029 1,020,000 1,076,773 Greenville, SC, Stormwater Systems, FSA, 5%, 2022 595,000 626,731 Greenville, SC, Waterworks Rev., 5.5%, 2007 (c) 1,000,000 1,026,190 Greenville, SC, Waterworks Rev., 5.25%, 2020 860,000 928,981 Rock Hill, SC, Utility Systems Rev., Refunding & Improvement, "A", FSA, 5.375%, 2023 500,000 540,480 Spartanburg, SC, Water & Sewer Authority Rev., "B", MBIA, 5.25%, 2030 1,250,000 1,342,650 Western Carolina Regional Sewer Authority Rev., AMBAC, 0%, 2007 4,000,000 3,942,520 York County, SC, Water & Sewer Rev., Refunding & Capital Improvement, MBIA, 5%, 2027 1,490,000 1,566,631 - ------------------------------------------------------------------------------------------------------------ $ 18,432,676 - ------------------------------------------------------------------------------------------------------------ TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $142,755,177) $152,208,098 - ------------------------------------------------------------------------------------------------------------ Floating Rate Demand Notes - 0.9% - ------------------------------------------------------------------------------------------------------------ Blount County, TN, Public Building Authority (Local Government Public Improvement), "A-2C", 3.8%, due 10/02/06 $ 100,000 $ 100,000 Chicago, IL, Midway Airport Rev., Second Lien, "B", 3.95%, due 10/02/06 700,000 700,000 Lincoln County, WY, Pollution Control Rev. (Exxon Mobil Corp.), 3.81%, due 10/02/06 200,000 200,000 Lincoln County, WY, Pollution Control Rev. (Exxon Mobil Corp.), 3.81%, due 10/02/06 200,000 200,000 State of Oregon, "73G", 3.8%, due 10/04/06 100,000 100,000 - ------------------------------------------------------------------------------------------------------------ TOTAL FLOATING RATE DEMAND NOTES (IDENTIFIED COST, $1,300,000) $ 1,300,000 - ------------------------------------------------------------------------------------------------------------ TOTAL INVESTMENTS (IDENTIFIED COST, $144,055,177) (k) $153,508,098 - ------------------------------------------------------------------------------------------------------------ Other Assets, Less Liabilities - 1.1% 1,782,136 - ------------------------------------------------------------------------------------------------------------ NET ASSETS - 100.0% $155,290,234 - ------------------------------------------------------------------------------------------------------------ SWAP AGREEMENTS AT 9/30/06 UNREALIZED NOTIONAL CASH FLOWS CASH FLOWS APPRECIATION EXPIRATION AMOUNT COUNTERPARTY TO RECEIVE TO PAY (DEPRECIATION) - ------------------------------------------------------------------------------------------------------------------------------- INTEREST RATE SWAPS 12/01/07 USD 3,000,000 Merrill Lynch 7-Day BMA 2.795% (fixed rate) $ 25,825 1/04/19 USD 2,000,000 Citigroup 7-Day BMA 4.307% (fixed rate) (86,846) 11/09/26 USD 1,500,000 Goldman Sachs 5.787% (fixed rate) 3-Month LIBOR 92,185 - ------------------------------------------------------------------------------------------------------------------------------- $ 31,164 - ------------------------------------------------------------------------------------------------------------------------------- At September 30, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts. SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS PORTFOLIO OF INVESTMENTS 9/30/06 (unaudited) MFS(R) TENNESSEE MUNICIPAL BOND FUND The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Municipal Bonds - 96.7% - ------------------------------------------------------------------------------------------------------------ ISSUER SHARES/PAR VALUE ($) - ------------------------------------------------------------------------------------------------------------ Airport and Port Revenue - 1.4% - ------------------------------------------------------------------------------------------------------------ Memphis-Shelby County, TN, Airport Authority Facilities Rev., FSA, 5.125%, 2021 $ 1,500,000 $ 1,550,982 - ------------------------------------------------------------------------------------------------------------ General Obligations - General Purpose - 5.8% - ------------------------------------------------------------------------------------------------------------ Chattanooga, TN, Public Improvement, 5%, 2021 $ 2,570,000 $ 2,660,721 Commonwealth of Puerto Rico, Unrefunded, Public Improvement, FSA, 5%, 2024 770,000 808,338 Lincoln County, TN, School Improvement, FGIC, 5.8%, 2007 (c) 1,000,000 1,021,090 Lincoln County, TN, School Improvement, FGIC, 5.8%, 2007 (c) 1,000,000 1,021,090 Puerto Rico Public Building Authority, 5.5%, 2021 1,000,000 1,121,020 - ------------------------------------------------------------------------------------------------------------ $ 6,632,259 - ------------------------------------------------------------------------------------------------------------ General Obligations - Improvement - 0.6% - ------------------------------------------------------------------------------------------------------------ Knoxville, TN, Recreational Facilities Improvement, 5.5%, 2008 (c) $ 645,000 $ 670,787 - ------------------------------------------------------------------------------------------------------------ General Obligations - Schools - 13.1% - ------------------------------------------------------------------------------------------------------------ Fayette County, TN, School District, MBIA, 5.6%, 2008 (c) $ 1,215,000 $ 1,247,854 Gibson County, TN, School District, MBIA, 5.75%, 2009 (c) 455,000 479,001 Gibson County, TN, School District, MBIA, 5.75%, 2016 190,000 200,999 Giles County, TN, School Improvement, FGIC, 5.75%, 2010 (c) 1,980,000 2,116,006 Greene County, TN, Rural School, FGIC, 5%, 2011 (c) 1,240,000 1,315,962 Roane County, TN, Rural School, FGIC, 5.6%, 2008 (c) 915,000 940,803 Roane County, TN, Rural School, FGIC, 5.6%, 2008 (c) 975,000 1,002,495 Rutherford County, TN, School & Public Improvement, 5%, 2022 1,510,000 1,585,515 Rutherford County, TN, School District, 5.875%, 2010 (c) 1,100,000 1,183,666 Rutherford County, TN, School Improvement, 0%, 2007 (c) 1,500,000 932,475 Rutherford County, TN, School Improvement, 5.875%, 2010 (c) 2,000,000 2,152,120 Williamson County, TN, Rural School, 6.125%, 2010 (c) 1,575,000 1,701,961 - ------------------------------------------------------------------------------------------------------------ $ 14,858,857 - ------------------------------------------------------------------------------------------------------------ Healthcare Revenue - Hospitals - 14.3% - ------------------------------------------------------------------------------------------------------------ Jackson, TN, Hospital Rev. (Jackson-Madison County General Hospital), AMBAC, 5%, 2008 (c) $ 1,000,000 $ 1,038,140 Johnson City, TN, Health & Education Financing Authority Rev. (Johnson City Medical Center Hospital), MBIA, 5.25%, 2016 1,375,000 1,375,825 Johnson City, TN, Health & Education Financing Authority Rev. (Johnson City Medical Center Hospital), MBIA, ETM, 5%, 2018 (c) 1,500,000 1,553,010 Johnson City, TN, Health & Educational Facilities, Hospital Rev. (Mountain States Health), "A", 5.5%, 2036 600,000 641,484 Knox County, TN, Health Educational Housing Facilities Board, Hospital Facilities Rev. (Baptist Health Systems), 6.5%, 2031 300,000 321,399 Knox County, TN, Health, Education & Housing Facilities Board Rev. (Catholic Healthcare Partners), 5.25%, 2030 1,000,000 1,049,710 Knox County, TN, Health, Education & Housing Facilities Board Rev. (Covenent Health), FSA, 5%, 2022 1,000,000 1,046,820 Knox County, TN, Health, Education & Housing Facilities Board Rev. (East Tennessee Children's Hospital), 5.75%, 2033 450,000 477,797 Knox County, TN, Health, Education & Housing Facilities Board Rev. (Fort Sanders), MBIA, 5.75%, 2014 3,250,000 3,652,090 Metropolitan Government Nashville, TN, Davidson Town Prerefunded, 5.25%, 2008 (c) 540,000 563,641 Metropolitian Government Nashville, TN, Davidson Town Unrefunded Hospital, 5.25%, 2020 460,000 472,641 Shelby County, TN, Health Educational & Housing Facilities Board Rev. (St. Judes Children's Research), 5.5%, 2020 1,750,000 1,848,333 Shelby County, TN, Health Educational & Housing Facilities Hospital Rev. (Methodist Healthcare), 6.5%, 2012 (c) 375,000 431,539 Shelby County, TN, Health Educational & Housing Facilities Hospital Rev. (Methodist Healthcare), 6.5%, 2012 (c) 625,000 719,231 Springfield, TN, Health & Higher Educational Facilities Hospital Rev. (Northcrest Medical Center), 5.25%, 2013 1,000,000 1,019,690 - ------------------------------------------------------------------------------------------------------------ $ 16,211,350 - ------------------------------------------------------------------------------------------------------------ Healthcare Revenue - Long Term Care - 0.5% - ------------------------------------------------------------------------------------------------------------ Shelby County, TN, Health Educational Rev. (Germantown Village), 7.25%, 2034 $ 250,000 $ 269,125 Shelby County, TN, Nursing Home Rev. (Beverly Enterprises, Inc.), 7.4%, 2006(c) 250,000 256,233 - ------------------------------------------------------------------------------------------------------------ $ 525,358 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Other - 1.2% - ------------------------------------------------------------------------------------------------------------ Hardeman County, TN, Correctional Facilities Rev., 7.75%, 2017 $ 945,000 $ 974,068 Virgin Islands Public Finance Authority, Refinery Facilities Rev. (Hovensa Refinery), 5.875%, 2022 320,000 348,762 - ------------------------------------------------------------------------------------------------------------ $ 1,322,830 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Paper - 0.9% - ------------------------------------------------------------------------------------------------------------ McMinn County, TN, Industrial Development Board, Pollution Control Rev. (Bowater, Inc.), 7.625%, 2016 $ 1,000,000 $ 1,007,770 - ------------------------------------------------------------------------------------------------------------ Miscellaneous Revenue - Entertainment & Tourism - 3.4% - ------------------------------------------------------------------------------------------------------------ Memphis-Shelby County, TN (Memphis Sports Arena), AMBAC, 5.125%, 2028 $ 2,000,000 $ 2,109,180 Memphis-Shelby County, TN (Memphis Sports Arena), AMBAC, 5.35%, 2029 1,665,000 1,791,623 - ------------------------------------------------------------------------------------------------------------ $ 3,900,803 - ------------------------------------------------------------------------------------------------------------ Multi-Family Housing Revenue - 4.0% - ------------------------------------------------------------------------------------------------------------ Chattanooga, TN, Health, Educational & Housing Facilities (Rainbow Creek), GNMA, 6.125%, 2019 $ 420,000 $ 443,701 Knoxville, TN, Community Development Corp., 5%, 2024 1,000,000 1,057,760 Memphis, TN, Health & Educational Facilities Board Rev. (Hickory Point Apartments), MBIA, 5.85%, 2020 1,000,000 1,046,300 Memphis, TN, Health, Educational & Housing Facilities Board Rev. (Prescott Place Apartments Project), FNMA, 5.125%, 2038 1,000,000 1,030,390 Metropolitan Government of Nashville & Davidson County, TN, Health, Educational & Housing Facilities Board Rev. (Berkshire Place), GNMA, 6%, 2023 500,000 526,250 Metropolitan Government of Nashville & Davidson County, TN, Health, Educational & Housing Facilities Board Rev. (Herman Street), FHA, 7.25%, 2032 485,000 486,940 - ------------------------------------------------------------------------------------------------------------ $ 4,591,341 - ------------------------------------------------------------------------------------------------------------ Single Family Housing - State - 13.1% - ------------------------------------------------------------------------------------------------------------ Tennessee Housing Development Agency Mortgage Finance, 5.2%, 2023 $ 1,500,000 $ 1,572,360 Tennessee Housing Development Agency Mortgage Finance, 5.35%, 2034 845,000 874,381 Tennessee Housing Development Agency Rev., Homeownership Program, 5.45%, 2014 2,535,000 2,636,704 Tennessee Housing Development Agency Rev., Homeownership Program, 4.45%, 2017 645,000 648,322 Tennessee Housing Development Agency Rev., Homeownership Program, 4.45%, 2017 660,000 663,399 Tennessee Housing Development Agency Rev., Homeownership Program, 4.55%, 2018 575,000 578,283 Tennessee Housing Development Agency Rev., Homeownership Program, 4.55%, 2018 690,000 693,940 Tennessee Housing Development Agency Rev., Homeownership Program, 6%, 2020 1,100,000 1,130,063 Tennessee Housing Development Agency Rev., Homeownership Program, 5%, 2026 2,000,000 2,044,420 Tennessee Housing Development Agency Rev., Homeownership Program, 5.05%, 2027 820,000 834,235 Tennessee Housing Development Agency Rev., Homeownership Program, 5.125%, 2034 1,055,000 1,088,939 Tennessee Housing Development Agency Rev., Homeownership Program, 5.25%, 2034 1,345,000 1,385,619 Tennessee Housing Development Agency Rev., Homeownership Program, FSA, 5.4%, 2032 745,000 768,795 Tennessee Housing Development Agency Rev., Homeownership Program, MBIA, 6.125%, 2020 25,000 25,109 - ------------------------------------------------------------------------------------------------------------ $ 14,944,569 - ------------------------------------------------------------------------------------------------------------ State & Local Agencies - 5.5% - ------------------------------------------------------------------------------------------------------------ Chattanooga, TN, Industrial Development Board, AMBAC, 5.75%, 2018 $ 1,000,000 $ 1,075,420 Puerto Rico Public Finance Corp., 5.75%, 2007 (c) 2,000,000 2,014,760 Tennessee School Bond Authority (Higher Education Facilities), FSA, 5.25%, 2029 3,000,000 3,177,960 - ------------------------------------------------------------------------------------------------------------ $ 6,268,140 - ------------------------------------------------------------------------------------------------------------ Tax - Other - 0.7% - ------------------------------------------------------------------------------------------------------------ Virgin Islands Public Finance Authority Rev., "E", 5.875%, 2018 $ 730,000 $ 765,420 - ------------------------------------------------------------------------------------------------------------ Tobacco - 1.0% - ------------------------------------------------------------------------------------------------------------ Guam Economic Development Authority Tobacco Settlement, "B", 5.5%, 2041 $ 350,000 $ 358,992 Tobacco Settlement Financing Corp., 5%, 2031 750,000 757,643 - ------------------------------------------------------------------------------------------------------------ $ 1,116,635 - ------------------------------------------------------------------------------------------------------------ Universities - Colleges - 4.3% - ------------------------------------------------------------------------------------------------------------ Metropolitan Government of Nashville & Davidson County, TN, Health, Educational & Housing Facilities Board Rev. (McKendree Village, Inc.), 5.125%, 2020 $ 1,000,000 $ 1,013,330 Metropolitan Government of Nashville & Davidson County, TN, Health, Educational & Housing Facilities Board Rev. (Meharry Medical College), AMBAC, 5%, 2024 3,750,000 3,861,600 - ------------------------------------------------------------------------------------------------------------ $ 4,874,930 - ------------------------------------------------------------------------------------------------------------ Utilities - Municipal Owned - 7.1% - ------------------------------------------------------------------------------------------------------------ Jackson, TN, Electrical Systems Rev., MBIA, 5%, 2018 $ 1,000,000 $ 1,012,130 Lawrenceburg, TN, Electrical Rev., MBIA, 5.5%, 2009 (c) 1,255,000 1,319,331 Metropolitan Government of Nashville & Davidson County, TN, Electrical Rev., 5.125%, 2021 1,500,000 1,581,375 Metropolitan Government of Nashville & Davidson County, TN, Electrical Rev., "A", AMBAC, 5%, 2029 1,500,000 1,578,435 Metropolitan Government of Nashville & Davidson County, TN, Electrical Rev., MBIA, 0%, 2012 3,305,000 2,644,661 - ------------------------------------------------------------------------------------------------------------ $ 8,135,932 - ------------------------------------------------------------------------------------------------------------ Utilities - Other - 1.0% - ------------------------------------------------------------------------------------------------------------ Tennessee Energy Acquisition, "A", 5.25%, 2026 $ 1,000,000 $ 1,121,870 - ------------------------------------------------------------------------------------------------------------ Water & Sewer Utility Revenue - 18.8% - ------------------------------------------------------------------------------------------------------------ Hallsdale-Powell Utility District, TN, Water & Sewer Rev., "A", FGIC, 5%, 2024 $ 1,500,000 $ 1,575,390 Hallsdale-Powell Utility District, TN, Water & Sewer Rev., "N", FGIC, 5%, 2036 1,000,000 1,062,950 Hallsdale-Powell Utility District, TN, Water & Sewer Rev., FGIC, 5%, 2027 3,000,000 3,149,040 Madison, TN, Utility Waterworks Rev., MBIA, 5%, 2019 2,750,000 2,804,258 Memphis, TN, Sewage Systems Rev., 5.75%, 2008 (c) 625,000 651,875 Memphis, TN, Sewage Systems Rev., 5.75%, 2008 (c) 1,145,000 1,194,235 Memphis, TN, Sewage Systems Rev., 5.75%, 2008 (c) 750,000 782,250 Rutherford County, TN, Water Rev., MBIA, 5%, 2027 770,000 821,983 West Knox Utility District, TN, Water & Sewer Rev., MBIA, ETM, 0%, 2006 (c) 1,920,000 1,909,421 West Knox Utility District, TN, Water & Sewer Rev., MBIA, ETM, 0%, 2007 (c) 1,920,000 1,842,893 West Wilson Utility District, TN, Waterworks Rev., MBIA, 5.25%, 2030 2,000,000 2,144,320 White House Utility District, TN, Water & Sewer Rev. (Robertson & Sumner Counties Waterworks), FSA, 6%, 2010 (c) 1,000,000 1,074,650 White House Utility District, TN, Water & Sewer Rev. (Robertson & Sumner Counties Waterworks), FSA, 5%, 2021 800,000 832,464 White House Utility District, TN, Water & Sewer Rev. (Robertson & Sumner Counties Waterworks), FSA, 5%, 2032 1,500,000 1,552,980 - ------------------------------------------------------------------------------------------------------------ $ 21,398,709 - ------------------------------------------------------------------------------------------------------------ TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $104,037,274) $109,898,542 - ------------------------------------------------------------------------------------------------------------ Floating Rate Demand Notes - 1.0% - ------------------------------------------------------------------------------------------------------------ Sevier County, TN, Public Building Authority, 3.76%, due 10/05/06 $ 1,000,000 $ 1,000,000 Sevier County, TN, Public Building Authority, 3.76%, due 10/05/06 70,000 70,000 - ------------------------------------------------------------------------------------------------------------ TOTAL FLOATING RATE DEMAND NOTES (IDENTIFIED COST, $1,070,000) $ 1,070,000 - ------------------------------------------------------------------------------------------------------------ TOTAL INVESTMENTS (IDENTIFIED COST, $105,107,274) (k) $110,968,542 - ------------------------------------------------------------------------------------------------------------ Other Assets, Less Liabilities - 2.3% 2,669,753 - ------------------------------------------------------------------------------------------------------------ NET ASSETS - 100.0% $113,638,295 - ------------------------------------------------------------------------------------------------------------ SWAP AGREEMENTS AT 9/30/06 UNREALIZED NOTIONAL CASH FLOWS CASH FLOWS APPRECIATION EXPIRATION AMOUNT COUNTERPARTY TO RECEIVE TO PAY (DEPRECIATION) - ------------------------------------------------------------------------------------------------------------------------------- INTEREST RATE SWAPS 1/11/22 USD 3,000,000 Merrill Lynch 5.763% (fixed rate) 3-Month LIBOR $156,319 11/09/26 USD 2,150,000 Goldman Sachs 5.787% (fixed rate) 3-Month LIBOR 132,132 11/16/26 USD 2,200,000 Merrill Lynch 5.856% (fixed rate) 3-Month LIBOR 152,827 - ------------------------------------------------------------------------------------------------------------------------------- $441,278 - ------------------------------------------------------------------------------------------------------------------------------- At September 30, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts. SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS PORTFOLIO OF INVESTMENTS 9/30/06 (unaudited) MFS(R) VIRGINIA MUNICIPAL BOND FUND The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Municipal Bonds - 96.7% - ------------------------------------------------------------------------------------------------------------ ISSUER SHARES/PAR VALUE ($) - ------------------------------------------------------------------------------------------------------------ Airport & Port Revenue - 8.6% - ------------------------------------------------------------------------------------------------------------ Metropolitan Washington, DC, Airport Authority Rev., "A", FGIC, 5.125%, 2024 $ 1,000,000 $ 1,053,060 Metropolitan Washington, DC, Airport Authority Rev., "A", FGIC, 5%, 2025 705,000 735,393 Metropolitan Washington, DC, Airport Authority Rev., "A", FSA, 5%, 2032 1,455,000 1,523,763 Metropolitan Washington, DC, Airport Authority Rev., "A", MBIA, 5%, 2035 3,000,000 3,127,950 Metropolitan Washington, DC, Airport Authority Rev., "B", 5.5%, 2016 2,465,000 2,533,527 Metropolitan Washington, DC, Airport Authority Rev., "B", 5.75%, 2020 11,000,000 11,332,310 Norfolk, VA, Airport Authority Rev., "A", FGIC, 5.375%, 2017 1,755,000 1,886,414 Norfolk, VA, Airport Authority Rev., "A", FGIC, 5%, 2022 3,000,000 3,124,290 Virginia Resources Authority, Airport Rev., "B", 5.125%, 2027 720,000 746,302 - ------------------------------------------------------------------------------------------------------------ $ 26,063,009 - ------------------------------------------------------------------------------------------------------------ General Obligations - General Purpose - 2.9% - ------------------------------------------------------------------------------------------------------------ Lebanon, VA, 6.375%, 2006 (c) $ 1,625,000 $ 1,664,504 Newport News, VA, Economic Development, "A", 5%, 2031 1,595,000 1,692,135 Puerto Rico Commonwealth, Public Improvement, "A", 5.25%, 2030 2,000,000 2,135,000 Stafford County, VA, Industrial Development Authority Rev., "B", MBIA, 5%, 2034 3,060,000 3,219,579 - ------------------------------------------------------------------------------------------------------------ $ 8,711,218 - ------------------------------------------------------------------------------------------------------------ General Obligations - Improvement - 13.1% - ------------------------------------------------------------------------------------------------------------ Chesterfield County, VA, 6%, 2010 (c) $ 1,900,000 $ 2,043,450 Chesterfield County, VA, 5%, 2020 2,015,000 2,120,163 Hampton, VA, Public Improvement, 6%, 2010 (c) 3,280,000 3,583,761 Hampton, VA, Public Improvement, 6%, 2010 (c) 3,480,000 3,802,283 Lynchburg, VA, Public Improvement, 5.6%, 2010 (c) 1,765,000 1,904,170 Puerto Rico Municipal Finance Agency, RITES, FSA, 8.107%, 2016 (v)(z) 1,105,000 1,274,153 Puerto Rico Municipal Finance Agency, RITES, FSA, 7.099%, 2017 (v)(z) 615,000 692,736 Richmond, VA, 0%, 2008 2,000,000 1,911,160 Richmond, VA, "A", FSA, 5.125%, 2010 (c) 5,000,000 5,287,700 Richmond, VA, "B", 0%, 2007 5,280,000 5,227,200 Richmond, VA, "B", 0%, 2008 5,270,000 5,035,907 Richmond, VA, "B", 0%, 2009 5,175,000 4,730,209 Suffolk, VA, Public Improvement, 5.5%, 2010 (c) 1,880,000 2,016,657 - ------------------------------------------------------------------------------------------------------------ $ 39,629,549 - ------------------------------------------------------------------------------------------------------------ General Obligations - Schools - 0.4% - ------------------------------------------------------------------------------------------------------------ Harrisonburg, VA, Public Recreation Facilities, FSA, 5.75%, 2029 $ 1,000,000 $ 1,086,950 - ------------------------------------------------------------------------------------------------------------ Healthcare Revenue - Hospitals - 12.5% - ------------------------------------------------------------------------------------------------------------ Albemarle County, VA, Industrial Development Authority, Hospital Rev. (Martha Jefferson Hospital), 5.25%, 2035 $ 3,000,000 $ 3,133,020 Arlington County, VA, Industrial Development Authority Rev. (Virginia Hospital Center Arlington Health Systems), 5.25%, 2011 (c) 2,600,000 2,806,102 Fredericksburg, VA, Industrial Development Rev. (Medicorp Health Systems), "B", 5.125%, 2033 750,000 772,140 Fredericksburg, VA, Industrial Development Rev. (Medicorp Health Systems), AMBAC, 5.25%, 2023 11,000,000 11,320,870 Henrico County, VA, Economic Development Authority Rev. (Bon Secours Health Systems, Inc.), "A", 5.6%, 2030 2,000,000 2,125,120 Henrico County, VA, Industrial Development Authority Rev. (Bon Secours Health Systems, Inc.), MBIA, 6.25%, 2020 1,500,000 1,795,305 Loudoun County, VA, Industrial Development Authority, Hospital Rev. (Loudoun Hospital Center), "A", 6.1%, 2012 (c) 1,000,000 1,130,130 Lynchburg, VA, Industrial Development Authority, Healthcare Facilities Rev. (Central Health), 5.2%, 2008 (c) 855,000 880,231 Lynchburg, VA, Industrial Development Authority, Healthcare Facilities Rev., Unrefunded Balance (Central Health), 5.2%, 2018 145,000 149,691 Medical College of Virginia, Hospital Authority Rev., MBIA, 5.125%, 2018 3,000,000 3,116,190 Peninsula Ports Authority, VA, Health System Rev. (Riverside Health System), 5%, 2018 3,580,000 3,687,006 Peninsula Ports Authority, VA, Hospital Facility Rev. (Whittaker Memorial), FHA, 8.7%, 2023 2,015,000 2,333,854 Prince William County, VA, Industrial Development Authority, Hospital Rev. (Potomac Hospital Corp.), 5.2%, 2026 1,000,000 1,055,840 Roanoke, VA, Industrial Development Authority, Hospital Rev. (Roanoke Memorial Hospital), "B", MBIA, ETM, 6.125%, 2017(c) 3,000,000 3,536,310 - ------------------------------------------------------------------------------------------------------------ $ 37,841,809 - ------------------------------------------------------------------------------------------------------------ Healthcare Revenue - Long Term Care - 0.8% - ------------------------------------------------------------------------------------------------------------ Henrico County, VA, Economic Development Authority, Residential Care Facilities (United Methodist Homes), "A", 6.7%, 2027 $ 750,000 $ 801,075 Norfolk, VA, Redevelopment & Housing Authority Rev. (Fort Norfolk Retirement Community), "A", 6.125%, 2035 750,000 775,162 Suffolk VA, Industrial Development Authority Retirement, 5.3%, 2031 750,000 762,975 - ------------------------------------------------------------------------------------------------------------ $ 2,339,212 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Environmental Services - 1.1% - ------------------------------------------------------------------------------------------------------------ Charles City County, VA, Industrial Development Authority, Solid Waste Disposal Facility Rev. (Waste Management, Inc.), 6.25%, 2027 $ 1,500,000 $ 1,633,305 Henrico County, VA, Industrial Development Authority Rev. (Browning Ferris, Inc.), 5.45%, 2014 1,750,000 1,727,145 - ------------------------------------------------------------------------------------------------------------ $ 3,360,450 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Other - 1.3% - ------------------------------------------------------------------------------------------------------------ Loudoun County, VA, Industrial Development Authority Rev. (Dulles Airport Marriot Hotel), 7.125%, 2015 $ 2,000,000 $ 2,037,840 Peninsula Ports Authority, Virginia Coal (Dominion Terminal Associates), 6%, 2033 1,000,000 1,100,010 Virgin Islands Public Finance Authority, Refinery Facilities Rev. (Hovensa Refinery), 5.875%, 2022 750,000 817,410 - ------------------------------------------------------------------------------------------------------------ $ 3,955,260 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Paper - 1.9% - ------------------------------------------------------------------------------------------------------------ Bedford County, VA, Industrial Development Authority Rev. (Nekooska Packaging Corp.), 5.6%, 2025 $ 1,000,000 $ 1,012,900 Isle Wight County, VA, Industrial Development Authority, Solid Waste Disposal Facilities Rev. (Union Camp Corp.), 6.1%, 2027 2,750,000 2,822,792 West Point, VA, Industrial Development Authority, Solid Waste Disposal Rev. (Chesapeake Corp.), "A", 6.375%, 2019 1,750,000 1,753,360 - ------------------------------------------------------------------------------------------------------------ $ 5,589,052 - ------------------------------------------------------------------------------------------------------------ Multi-Family Housing Revenue - 4.4% - ------------------------------------------------------------------------------------------------------------ Alexandria, VA, Redevelopment & Housing Finance Authority Rev. (Jefferson Village Apartments), "B", 9%, 2018 $ 3,610,000 $ 3,609,531 Arlington County, VA, Industrial Development Authority Rev. (Colonial Village), FNMA, 5.15%, 2031 3,000,000 3,118,770 Virginia Housing Development Authority Rev., "B", 5.95%, 2016 1,345,000 1,359,230 Virginia Housing Development Authority Rev., "G", 5.625%, 2020 2,000,000 2,073,240 Virginia Housing Development Authority Rev., "I", 5.15%, 2017 3,000,000 3,072,600 - ------------------------------------------------------------------------------------------------------------ $ 13,233,371 - ------------------------------------------------------------------------------------------------------------ Parking - 0.6% - ------------------------------------------------------------------------------------------------------------ Norfolk, VA, Parking Systems Rev., MBIA, 5%, 2020 $ 1,630,000 $ 1,690,196 - ------------------------------------------------------------------------------------------------------------ Single Family Housing - State - 2.1% - ------------------------------------------------------------------------------------------------------------ Virginia Housing Development Authority Commonwealth, "C", 4.4%, 2022 $ 1,270,000 $ 1,256,055 Virginia Housing Development Authority Commonwealth, "C", 4.75%, 2032 1,795,000 1,809,504 Virginia Housing Development Authority, "A", 5%, 2031 2,000,000 2,044,940 Virginia Housing Development Authority, "C", 4.66%, 2027 1,285,000 1,286,658 - ------------------------------------------------------------------------------------------------------------ $ 6,397,157 - ------------------------------------------------------------------------------------------------------------ State & Agency - Other - 1.7% - ------------------------------------------------------------------------------------------------------------ Fairfax County, VA, COP, 6.1%, 2017 $ 3,090,000 $ 3,476,775 Virginia Biotechnology Research Park Lease Rev. (Consolidated Laboratories), 5%, 2021 1,500,000 1,575,750 - ------------------------------------------------------------------------------------------------------------ $ 5,052,525 - ------------------------------------------------------------------------------------------------------------ State & Local Agencies - 20.5% - ------------------------------------------------------------------------------------------------------------ Blue Ridge, VA, Regional Jail Authority, MBIA, 5.2%, 2021 $ 1,830,000 $ 1,898,387 Caroline County, VA, Industrial Development Authority, Lease Rev., AMBAC, 5.125%, 2034 1,000,000 1,059,560 Chesapeake, VA, Industrial Development Authority (Chesapeake Court House), MBIA, 6.25%, 2011 3,985,000 4,132,565 Chesapeake, VA, Industrial Development Authority (Chesapeake Court House), MBIA, 5.25%, 2017 2,000,000 2,060,520 Chesterfield County, VA, Industrial Development Authority, Public Facilities Lease Rev., 7.5%, 2008 830,000 831,577 Dinwiddie County, VA, Industrial Development Authority Lease Rev., "B", MBIA, 5%, 2030 2,500,000 2,623,825 Fairfax County, VA, Economic Development Authority, 4.5%, 2026 2,325,000 2,353,900 Fairfax County, VA, Economic Development Authority Rev. (U.S. Route 28), MBIA, 5%, 2029 1,000,000 1,055,570 Fairfax County, VA, Economic Development Authority, Parking Rev. (Vienna II Metrorail), 6%, 2009 (c) 1,750,000 1,900,535 Fairfax County, VA, Economic Development Authority, Parking Rev. (Vienna II Metrorail), 6%, 2009 (c) 1,650,000 1,791,933 Fairfax County, VA, Redevelopment & Housing Authority Rev. (Mott & Gum Springs Community Centers), 5.5%, 2017 2,225,000 2,273,483 Fairfax, VA, Economic Development Authority Fairfax Public Improvement Project, 5%, 2030 1,000,000 1,049,690 Front Royal & Warren County, VA, Industrial Development Authority Lease Rev., School & Capital Improvement, "B", FSA, 5%, 2035 2,875,000 3,019,641 King George County, VA, Industrial Development Authority Lease Rev., FSA, 5%, 2036 2,000,000 2,093,100 Middlesex County, VA, Industrial Development Authority Rev., AMBAC, 5.125%, 2027 1,000,000 1,067,980 Middlesex County, VA, Industrial Development Authority Rev., AMBAC, 5.25%, 2032 2,000,000 2,131,640 Montgomery County, VA, Industrial Development, "B", AMBAC, 6%, 2011 (c) 1,000,000 1,104,620 Montgomery County, VA, Industrial Development, "C", AMBAC, 6%, 2011 (c) 1,120,000 1,237,174 New River Valley, VA, Regional Jail Authority, MBIA, 5.125%, 2019 3,405,000 3,521,894 Orange County, VA, Industrial Development Authority (Orange County Project), AMBAC, 5%, 2034 1,000,000 1,045,290 Powhatan County, VA, Economic Development Authority Lease Rev. (Virginia Capital Projects), AMBAC, 5.25%, 2033 1,000,000 1,064,900 Prince William County, VA, Lease Partnerships, 5%, 2021 1,500,000 1,582,200 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2013 (v)(z) 2,000,000 2,419,320 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2016 (v)(z) 500,000 631,470 Richmond, VA, Public Facilities, COP (Megahertz Project), "A", AMBAC, 5%, 2022 1,600,000 1,670,208 Southwest Virginia Regional Jail Authority Rev., MBIA, 5%, 2035 1,720,000 1,800,651 Virginia College Building Authority (21st Century College Program), 6%, 2009 (c) 2,000,000 2,125,820 Virginia Public Building Authority Rev., "B", MBIA, 0%, 2007 3,750,000 3,641,813 Virginia Resources Authority Rev., "B", FSA, 5.5%, 2019 1,070,000 1,142,557 Virginia Resources Authority Rev., ROLS, 6.519%, 2021 (v)(z) 1,390,000 1,575,621 Virginia Resources Authority Rev., ROLS, 6.519%, 2023 (v)(z) 1,520,000 1,701,792 Virginia Resources Authority Rev., ROLS, 6.519%, 2033 (v)(z) 2,510,000 2,759,695 Virginia Resources Authority, Infrastructure Rev., "A", 5%, 2017 1,360,000 1,425,919 - ------------------------------------------------------------------------------------------------------------ $ 61,794,850 - ------------------------------------------------------------------------------------------------------------ Tax - Other - 1.6% - ------------------------------------------------------------------------------------------------------------ Greater Richmond Convention Center Authority, Hotel Tax Rev. (Convention Center Expansion), 6.125%, 2010 (c) $ 3,500,000 $ 3,841,495 Virgin Islands, Public Finance Authority Rev., "A", 5.625%, 2025 1,000,000 1,035,960 - ------------------------------------------------------------------------------------------------------------ $ 4,877,455 - ------------------------------------------------------------------------------------------------------------ Tobacco - 1.0% - ------------------------------------------------------------------------------------------------------------ Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, 5.375%, 2033 $ 450,000 $ 464,247 Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, 5.5%, 2039 965,000 999,036 Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, "B", 0%, 2055 2,000,000 70,340 Tobacco Settlement Financing Corp., VA, 5.625%, 2037 1,000,000 1,047,900 Virgin Islands Tobacco Settlement Financing Corp., 5%, 2021 540,000 545,681 - ------------------------------------------------------------------------------------------------------------ $ 3,127,204 - ------------------------------------------------------------------------------------------------------------ Toll Roads - 0.4% - ------------------------------------------------------------------------------------------------------------ Pocahontas Parkway Assn., VA, Toll Road Rev., 0%, 2008 (c) $ 1,500,000 $ 1,088,955 - ------------------------------------------------------------------------------------------------------------ Transportation - Special Tax - 0.9% - ------------------------------------------------------------------------------------------------------------ Commonwealth of Puerto Rico, Highway & Transportation Authority Rev., "J", MBIA, 5%, 2029 $ 1,210,000 $ 1,282,358 Virginia Commonwealth Board Program (Oak Grove Connector), "A", 5.25%, 2007 (c) 1,500,000 1,530,705 - ------------------------------------------------------------------------------------------------------------ $ 2,813,063 - ------------------------------------------------------------------------------------------------------------ Universities - Colleges - 3.7% - ------------------------------------------------------------------------------------------------------------ Amherst, VA, Industrial Development Authority Rev. (Educational Facilities Sweet Briar), 5%, 2026 $ 1,770,000 $ 1,827,189 Danville, VA, Industrial Development Authority, Educational Facilities Rev. (Averett University), 6%, 2022 500,000 521,800 Loudoun County, VA, Industrial Development Authority, University Facilities Rev. (George Washington University), 6.25%, 2012 2,710,000 2,713,225 University of Virginia, (University Revenue), "B", 5%, 2027 2,690,000 2,836,094 Virginia College Building Authority, Educational Facilities Rev. (Washington & Lee University), MBIA, 5.25%, 2031 1,000,000 1,164,300 Virginia College Building Authority, Educational Facilities Rev. (Hampton University), 6%, 2010 (c) 1,000,000 1,087,260 Virginia College Building Authority, Educational Facilities Rev. (Regent University), MBIA, 5.125%, 2011 (c) 1,000,000 1,070,990 - ------------------------------------------------------------------------------------------------------------ $ 11,220,858 - ------------------------------------------------------------------------------------------------------------ Utilities - Investor Owned - 2.3% - ------------------------------------------------------------------------------------------------------------ Chesapeake, VA, Industrial Development Authority Rev. (Virginia Electric & Power Co.), 5.25%, 2008 $ 750,000 $ 754,065 Halifax County, VA, Industrial Development Authority (Old Dominion Electric Cooperative), AMBAC, 5.625%, 2028 3,000,000 3,245,010 Mecklenburg County, VA, Industrial Development Authority Rev. (UAE Mecklenburg LP), 6.5%, 2017 700,000 772,821 Pittsylvania County, VA, Industrial Development Authority Rev., 7.5%, 2014 2,000,000 2,017,720 - ------------------------------------------------------------------------------------------------------------ $ 6,789,616 - ------------------------------------------------------------------------------------------------------------ Utilities - Municipal Owned - 5.5% - ------------------------------------------------------------------------------------------------------------ Bristol, VA, Utility Systems Rev., FSA, ETM, 5.75%, 2016 (c) $ 240,000 $ 279,197 Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2015 (v)(z) 1,010,000 1,134,291 Puerto Rico Electric Power Authority Rev., RITES, FSA, 7.594%, 2017 (v)(z) 2,500,000 2,936,800 Puerto Rico Electric Power Authority Rev., RITES, FSA, 7.344%, 2019 (v)(z) 1,270,000 1,480,845 Puerto Rico Electric Power Authority Rev., RITES, FSA, 6.694%, 2020 (v)(z) 1,250,000 1,432,900 Richmond, VA, Public Utilities Rev., FSA, 5%, 2033 6,950,000 7,210,416 Richmond, VA, Public Utilities Rev., FSA, 5%, 2035 1,000,000 1,054,690 Richmond, VA, Public Utilities Rev., FSA, "N", 5%, 2027 1,000,000 1,060,430 - ------------------------------------------------------------------------------------------------------------ $ 16,589,569 - ------------------------------------------------------------------------------------------------------------ Water & Sewer Utility Revenue - 9.4% - ------------------------------------------------------------------------------------------------------------ Fairfax County, VA, Water Authority Rev., 5%, 2026 $ 1,000,000 $ 1,061,520 Fairfax County, VA, Water Authority Rev., 5%, 2027 3,155,000 3,344,899 Fairfax County, VA, Water Authority Rev., 5%, 2032 2,000,000 2,080,720 Fairfax County, VA, Water Authority Rev., "A", 5%, 2030 2,000,000 2,123,560 Fairfax County, VA, Water Authority Rev., Unrefunded, 5%, 2027 3,210,000 3,365,236 Prince William County, VA, Water & Sewer Rev., FGIC, 5.5%, 2009 (c) 2,000,000 2,120,700 Puerto Rico Aqueduct & Sewer Authority Rev., ETM, 10.25%, 2009 (c) 175,000 191,182 Spotsylvania County, VA, Water & Sewer Rev., FSA, 5%, 2022 1,450,000 1,513,495 Virginia Beach, VA, Storm Water Utilities Rev., 6%, 2020 1,000,000 1,093,900 Virginia Resources Authority Sewer Systems Rev. (Hopewell Regional Wastewater), 5.75%, 2021 1,335,000 1,446,699 Virginia Resources Authority, Clean Water Rev., 5.4%, 2010 (c) 1,135,000 1,212,940 Virginia Resources Authority, Clean Water Rev., 6%, 2010 (c) 2,750,000 2,999,755 Virginia Resources Authority, Infrastructure Rev., "A", MBIA, 5.5%, 2019 1,600,000 1,727,360 Virginia Resources Authority, Infrastructure Rev., "A", MBIA, 5.5%, 2020 1,690,000 1,822,310 Virginia Resources Authority, Water & Sewer Systems Rev. (Tuckahoe Creek Project), 5%, 2035 2,015,000 2,110,712 - ------------------------------------------------------------------------------------------------------------ $ 28,214,988 - ------------------------------------------------------------------------------------------------------------ TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $276,474,976) $291,466,316 - ------------------------------------------------------------------------------------------------------------ Floating Rate Demand Notes - 0.9% - ------------------------------------------------------------------------------------------------------------ Allegheny County, PA, Hospital Development Authority Rev. (Presbyterian University Hospital), "A", 3.8%, due 10/05/06 $ 100,000 $ 100,000 Allegheny County, PA, Hospital Development Authority Rev. (Presbyterian University Hospital), "C", 3.8%, due 10/05/06 500,000 500,000 Burke County, GA, Development Authority Pollution Control Rev. (Oglethorpe Power Corp.), "A", 3.78%, due 10/04/06 100,000 100,000 Chicago, IL, Midway Airport Rev., Second Lien, "B", 3.95%, due 10/02/06 900,000 900,000 Georgia Municipal Electric Authority Rev., 3.76%, due 10/04/06 200,000 200,000 Jefferson County, AL, Sewer Rev., Warrants Rev., "B-4", 3.78%, due 10/05/06 200,000 200,000 Massachusetts Water Resources Authority, 3.75%, due 10/04/06 100,000 100,000 Sevier County, TN, Public Building Authority, 3.76%, due 10/05/06 190,000 190,000 Sevier County, TN, Public Building Authority, 3.76%, due 10/05/06 400,000 400,000 - ------------------------------------------------------------------------------------------------------------ TOTAL FLOATING RATE DEMAND NOTES (IDENTIFIED COST, $2,690,000) $ 2,690,000 - ------------------------------------------------------------------------------------------------------------ TOTAL INVESTMENTS (IDENTIFIED COST, $279,164,976) (k) $294,156,316 - ------------------------------------------------------------------------------------------------------------ Other Assets, Less Liabilities - 2.4% 7,369,677 - ------------------------------------------------------------------------------------------------------------ NET ASSETS - 100.0% $301,525,993 - ------------------------------------------------------------------------------------------------------------ SWAP AGREEMENTS AT 9/30/06 UNREALIZED NOTIONAL CASH FLOWS CASH FLOWS APPRECIATION EXPIRATION AMOUNT COUNTERPARTY TO RECEIVE TO PAY (DEPRECIATION) - ------------------------------------------------------------------------------------------------------------------------------- INTEREST RATE SWAPS 12/01/07 USD 6,000,000 Merrill Lynch 7-Day BMA 2.795% (fixed rate) $ 51,650 1/11/22 USD 3,000,000 Merrill Lynch 5.763% (fixed rate) 3-Month LIBOR 156,319 11/09/26 USD 3,000,000 Goldman Sachs 5.787% (fixed rate) 3-Month LIBOR 184,370 11/16/26 USD 3,000,000 Merrill Lynch 5.856% (fixed rate) 3-Month LIBOR 208,401 - ------------------------------------------------------------------------------------------------------------------------------- $600,740 - ------------------------------------------------------------------------------------------------------------------------------- At September 30, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts. SEE PORTFOLIO FOOTNOTES AND NOTES TO FINANCIAL STATEMENTS PORTFOLIO OF INVESTMENTS 9/30/06 (unaudited) MFS(R) WEST VIRGINIA MUNICIPAL BOND FUND The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Municipal Bonds - 97.4% - ------------------------------------------------------------------------------------------------------------ ISSUER SHARES/PAR VALUE ($) - ------------------------------------------------------------------------------------------------------------ General Obligations - General Purpose - 22.5% - ------------------------------------------------------------------------------------------------------------ Charleston, WV, Public Improvements, 7.2%, 2009 $ 1,140,000 $ 1,244,584 Commonwealth of Puerto Rico, Public Improvement, 5.25%, 2023 1,500,000 1,589,730 Commonwealth of Puerto Rico, Public Improvement, "A", CIFG, 5%, 2034 2,000,000 2,093,920 Commonwealth of Puerto Rico, Public Improvement, RITES, MBIA, 7.594%, 2019 (v)(z) 3,000,000 3,449,640 Puerto Rico Commonwealth Public Improvement, "A", CIFG, 5%, 2025 1,000,000 1,064,580 Puerto Rico Public Buildings Authority Rev. (State Office Building), "F", XLCA, 5.25%, 2025 2,000,000 2,295,820 Puerto Rico Public Buildings Authority Rev., "B", 5.25%, 2007 (c) 3,115,000 3,201,784 West Virginia Highway Improvements, FGIC, 5.625%, 2010 (c) 2,000,000 2,159,400 West Virginia Public Improvements, FGIC, 5%, 2021 4,000,000 4,083,400 West Virginia Sewer Improvements, FGIC, 5.5%, 2017 2,565,000 2,713,411 West Virginia Water Utility Improvements, FGIC, 5.25%, 2026 8,000,000 8,168,640 - ------------------------------------------------------------------------------------------------------------ $ 32,064,909 - ------------------------------------------------------------------------------------------------------------ General Obligations - Improvement - 1.7% - ------------------------------------------------------------------------------------------------------------ Brooke County, WV, Board of Education, FGIC, 5%, 2016 $ 1,390,000 $ 1,458,207 Puerto Rico, Municipal Finance Agency, RITES, FSA, 7.099%, 2017 (v)(z) 900,000 1,013,760 - ------------------------------------------------------------------------------------------------------------ $ 2,471,967 - ------------------------------------------------------------------------------------------------------------ General Obligations - Schools - 5.2% - ------------------------------------------------------------------------------------------------------------ Jefferson County, WV, Board of Education, FGIC, ETM, 6.85%, 2009 (c) $ 1,680,000 $ 1,824,866 Monongalia County, WV, Board of Education, MBIA, 5%, 2027 2,350,000 2,489,331 Monongalia County, WV, Board of Education, MBIA, 5%, 2033 3,000,000 3,151,380 - ------------------------------------------------------------------------------------------------------------ $ 7,465,577 - ------------------------------------------------------------------------------------------------------------ Healthcare Revenue - Hospitals - 5.5% - ------------------------------------------------------------------------------------------------------------ Kanawha County, WV, Building Commission Rev. (St. Francis Hospital), ETM, 7.5%, 2007 (c) $ 60,000 $ 61,587 Monongalia County, WV, Building Community Hospital Rev. (Monongalia General Hospital), "A", 5.25%, 2035 1,000,000 1,044,810 Ohio County, WV, County Commission Health System Rev. (Ohio Valley Medical Center), 5.75%, 2013 750,000 725,520 Randolph County, WV, Community Health Systems Rev. (Davis Health Systems, Inc.), FSA, 5.2%, 2021 1,000,000 1,071,370 Weirton, WV, Municipal Hospital Building, Commission Rev. (Weirton Hospital Medical Center), 6.375%, 2031 600,000 626,256 West Virginia Hospital Finance Authority, Hospital Rev. (Charleston Area Medical Center), ETM, 6.5%, 2023 (c) 2,000,000 2,450,760 West Virginia Hospital Finance Authority, Hospital Rev. (Fairmont General Hospital), 6.625%, 2019 300,000 300,630 West Virginia Hospital Finance Authority, Hospital Rev. (General Division Medical Office Building), 7.25%, 2014 1,510,000 1,512,069 - ------------------------------------------------------------------------------------------------------------ $ 7,793,002 - ------------------------------------------------------------------------------------------------------------ Healthcare Revenue - Long Term Care - 2.1% - ------------------------------------------------------------------------------------------------------------ Harrison County, WV, Building Commission Rev. (Maplewood Retirement), AMBAC, 5.25%, 2008 (c) $ 2,625,000 $ 2,741,445 West Virginia Economic Development (Edgewood Summit), 5.5%, 2029 300,000 305,517 - ------------------------------------------------------------------------------------------------------------ $ 3,046,962 - ------------------------------------------------------------------------------------------------------------ Industrial Revenue - Other - 0.3% - ------------------------------------------------------------------------------------------------------------ Virgin Islands Public Finance Authority, Refinery Facilities Rev. (Hovensa Refinery), 5.875%, 2022 $ 350,000 $ 381,458 - ------------------------------------------------------------------------------------------------------------ Parking - 0.9% - ------------------------------------------------------------------------------------------------------------ West Virginia Economic Development Authority, Auto Lease Rev. (Capitol Parking Garage), AMBAC, 5.8%, 2020 $ 1,260,000 $ 1,350,859 - ------------------------------------------------------------------------------------------------------------ Single Family Housing - Local - 1.0% - ------------------------------------------------------------------------------------------------------------ Charlestown, WV, Residential Mortgage Rev., 6.2%, 2011 $ 75,000 $ 75,310 Kanawha County, WV, 0%, 2014 (c) 1,920,000 1,289,702 - ------------------------------------------------------------------------------------------------------------ $ 1,365,012 - ------------------------------------------------------------------------------------------------------------ Single Family Housing - State - 1.9% - ------------------------------------------------------------------------------------------------------------ Puerto Rico Housing Finance Authority Home Mortgage Rev., Mortgage Backed Securities, "A", 4.75%, 2023 $ 680,000 $ 680,116 West Virginia Housing Development Fund Rev., 5.25%, 2018 1,000,000 1,029,250 West Virginia Housing Development Fund Rev., 5.3%, 2023 920,000 940,976 - ------------------------------------------------------------------------------------------------------------ $ 2,650,342 - ------------------------------------------------------------------------------------------------------------ State & Local Agencies - 21.2% - ------------------------------------------------------------------------------------------------------------ Huntington, WV, Municipal Development Authority, Rev., MBIA, 5.1%, 2018 $ 1,740,000 $ 1,803,232 West Virginia Building Commission, "A", RITES, AMBAC, 6.765%, 2018 (v)(z) 4,520,000 5,656,961 West Virginia Building Commission, "B", RITES, AMBAC, 6.765%, 2018 (v)(z) 1,250,000 1,564,425 West Virginia Building Commission, Lease Rev., MBIA, ETM, 0%, 2007 (c) 3,150,000 3,068,415 West Virginia Building Commission, Lease Rev., MBIA, ETM, 0%, 2008 (c) 3,050,000 2,866,725 West Virginia Building Commission, Lease Rev., MBIA, ETM, 0%, 2009 (c) 1,000,000 905,100 West Virginia Economic Development Authority (Correctional Juvenile & Public), 5%, 2020 1,000,000 1,049,010 West Virginia Economic Development Authority (Correctional Juvenile & Public), MBIA, 5.5%, 2013 1,000,000 1,098,670 West Virginia Economic Development Authority (Correctional Juvenile & Public), MBIA, 5%, 2026 2,100,000 2,197,818 West Virginia Economic Development Authority State Office Building, "B", MBIA, 5.25%, 2030 1,355,000 1,443,834 West Virginia Economic Development Authority, Auto Lease Rev., 5.2%, 2033 1,000,000 1,051,550 West Virginia Economic Development Authority, Department of Environmental Protection, 5.5%, 2022 2,000,000 2,177,020 West Virginia Economic Development Authority, Lease Rev. (State Office Building), "B", MBIA, 5.25%, 2025 645,000 690,608 West Virginia Hospital Finance Authority, Hospital Rev. (Veterans Nursing Home), 5.5%, 2034 1,000,000 1,027,470 West Virginia Hospital Finance Authority, Hospital Rev. (West Virginia University Hospital), AMBAC, 5%, 2018 1,000,000 1,021,880 West Virginia School Building Authority, Miscellaneous Tax Rev., FSA, 5.25%, 2021 2,550,000 2,629,458 - ------------------------------------------------------------------------------------------------------------ $ 30,252,176 - ------------------------------------------------------------------------------------------------------------ Tax - Other - 0.4% - ------------------------------------------------------------------------------------------------------------ Virgin Islands, Public Finance Authority Rev., "A", 5.625%, 2025 $ 500,000 $ 517,980 - ------------------------------------------------------------------------------------------------------------ Tobacco - 0.5% - ------------------------------------------------------------------------------------------------------------ Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, 5.375%, 2033 $ 665,000 $ 686,054 - ------------------------------------------------------------------------------------------------------------ Toll Roads - 1.8% - ------------------------------------------------------------------------------------------------------------ West Virginia Parkways, Economic Development & Tourism Authority, Rev., FGIC, ETM, 0%, 2007 (c) $ 2,000,000 $ 1,948,200 West Virginia Parkways, Economic Development & Tourism Authority, Rev., FGIC, ETM, 0%, 2008 (c) 610,000 573,345 - ------------------------------------------------------------------------------------------------------------ $ 2,521,545 - ------------------------------------------------------------------------------------------------------------ Transportation - Special Tax - 1.3% - ------------------------------------------------------------------------------------------------------------ Commonwealth of Puerto Rico, Highway & Transportation Authority Rev., "J", MBIA, 5%, 2029 $ 1,820,000 $ 1,928,836 - ------------------------------------------------------------------------------------------------------------ Universities - Colleges - 20.9% - ------------------------------------------------------------------------------------------------------------ Commonwealth of Puerto Rico, Industrial Tourist Education (University Plaza), MBIA, 5%, 2021 $ 1,270,000 $ 1,326,223 Fairmont State College, West Virginia, College Rev., "A", FGIC, 5%, 2032 3,210,000 3,351,946 Fairmont State College, West Virginia, College Rev., "A", FGIC, 5.375%, 2027 1,500,000 1,619,370 Fairmont State College, West Virginia, College Rev., "A", FGIC, 5%, 2032 2,250,000 2,342,880 Fairmont State College, West Virginia, College Rev., "B", FGIC, 5.25%, 2022 5,130,000 5,495,102 Shepherd University Board of Governors, West Virginia Rev. (Residence Facilities Projects), MBIA, 5%, 2035 1,675,000 1,758,917 West Virginia Department of Higher Education (Marshall University), FGIC, 5.25%, 2019 1,680,000 1,778,465 West Virginia Department of Higher Education (Student Union James C. Wilson College), 5.125%, 2022 1,500,000 1,594,245 West Virginia Department of Higher Education, "B", FGIC, 5%, 2029 1,000,000 1,050,311 West Virginia Department of Higher Education, "A", MBIA, 5%, 2010 1,345,000 1,407,610 West Virginia University, Dormitory Rev., AMBAC, 5%, 2007 (c) 2,000,000 2,051,240 West Virginia University, University Systems Rev. (Marshall University), FGIC, 6%, 2020 2,705,000 2,935,466 West Virginia University, University Systems Rev. (West Virginia University), MBIA, 5.5%, 2020 1,700,000 1,954,286 West Virginia, West Virginia University Improvement Rev., "C", FGIC, 5%, 2028 1,000,000 1,048,990 - ------------------------------------------------------------------------------------------------------------ $ 29,715,051 - ------------------------------------------------------------------------------------------------------------ Universities - Dormitories - 0.4% - ------------------------------------------------------------------------------------------------------------ West Liberty State College, Capital Improvement, 6%, 2028 $ 500,000 $ 535,870 - ------------------------------------------------------------------------------------------------------------ Utilities - Investor Owned - 0.5% - ------------------------------------------------------------------------------------------------------------ Mason County, WV, Pollution Control Rev. (Appalachian Power Co.), 5.5%, 2022 $ 750,000 $ 777,427 - ------------------------------------------------------------------------------------------------------------ Water & Sewer Utility Revenue - 9.3% - ------------------------------------------------------------------------------------------------------------ Fairmont, WV, Waterworks Rev., AMBAC, 5.25%, 2022 $ 200,000 $ 226,970 West Virginia Water Development Authority Loan Program, "B", AMBAC, 4.75%, 2035 500,000 511,085 West Virginia Water Development Authority Loan Program, "B", AMBAC, 5.125%, 2024 2,140,000 2,294,701 West Virginia Water Development Authority Rev., AMBAC, 6.25%, 2020 1,000,000 1,086,750 West Virginia Water Development Authority Rev., AMBAC, 5.25%, 2023 1,000,000 1,076,320 West Virginia Water Development Authority Rev., AMBAC, 5%, 2026 2,850,000 3,006,693 West Virginia Water Development Authority Rev., ETM, 7.1%, 2009 (c) 80,000 84,232 West Virginia Water Development Authority, "A", FGIC, 5%, 2033 1,500,000 1,579,305 West Virginia Water Development Authority, Infrastructure Rev., "A", AMBAC, 5%, 2033 1,950,000 2,042,840 West Virginia Water Development Authority, Infrastructure Rev., FSA, 5.5%, 2010 (c) 390,000 418,220 West Virginia Water Development Authority, Infrastructure Rev., FSA, 5.5%, 2010 (c) 895,000 959,762 - ------------------------------------------------------------------------------------------------------------ $ 13,286,878 - ------------------------------------------------------------------------------------------------------------ TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $130,891,143) $138,811,905 - ------------------------------------------------------------------------------------------------------------ Floating Rate Demand Notes - 0.9% - ------------------------------------------------------------------------------------------------------------ Bell County, TX, Health Facility Development Corp. Rev. (Scott & White Memorial Hospital), 3.89%, due 10/02/06 $ 100,000 $ 100,000 Illinois Development Finance Authority Rev. (Jewish Federation of Metropolitan Chicago), 3.89%, due 10/02/06 200,000 200,000 Lincoln County, WY, Pollution Control Rev. (Exxon Mobil Corp.), 3.81%, due 10/02/06 200,000 200,000 New York, NY, Municipal Water & Sewer Finance Authority Rev., 3.78%, due 10/02/06 100,000 100,000 Sevier County, TN, Public Building Authority, 3.76%, due 10/05/06 500,000 500,000 State of Oregon, "73G", 3.8%, due 10/04/06 100,000 100,000 - ------------------------------------------------------------------------------------------------------------ TOTAL FLOATING RATE DEMAND NOTES (IDENTIFIED COST, $1,200,000) $ 1,200,000 - ------------------------------------------------------------------------------------------------------------ TOTAL INVESTMENTS (IDENTIFIED COST, $132,091,143) (k) $140,011,905 - ------------------------------------------------------------------------------------------------------------ Other Assets, Less Liabilities - 1.7% 2,454,726 - ------------------------------------------------------------------------------------------------------------ NET ASSETS - 100.0% $142,466,631 - ------------------------------------------------------------------------------------------------------------ SWAP AGREEMENTS AT 9/30/06 UNREALIZED NOTIONAL CASH FLOWS CASH FLOWS APPRECIATION EXPIRATION AMOUNT COUNTERPARTY TO RECEIVE TO PAY (DEPRECIATION) - ------------------------------------------------------------------------------------------------------------------------------- INTEREST RATE SWAPS 12/01/07 USD 3,000,000 Merrill Lynch 7-Day BMA 2.795% (fixed rate) $ 25,825 11/09/26 USD 1,500,000 Goldman Sachs 5.787% (fixed rate) 3-Month LIBOR 92,185 - ------------------------------------------------------------------------------------------------------------------------------- $118,010 - ------------------------------------------------------------------------------------------------------------------------------- At September 30, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts. Portfolio Footnotes: (c) Refunded bond. (k) As of September 30, 2006, the following funds held securities fair valued in accordance with the policies adopted by the Board of Trustees. All of these security values were provided by an independent pricing service using an evaluated bid. FUND MARKET VALUE % OF MARKET VALUE - ------------------------------------------------------------------------------------------------------- Mississippi Fund $ 83,045,558 99.40% New York Fund 158,753,758 98.51% North Carolina Fund 327,180,095 99.33% Pennsylvania Fund 105,550,979 97.92% South Carolina Fund 152,208,098 99.15% Tennessee Fund 109,898,542 99.04% Virginia Fund 291,466,316 99.09% West Virginia Fund 138,811,905 99.14% (n) Securities exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be sold in the ordinary course of business in transactions exempt from registration, normally to qualified institutional buyers. At period end, the aggregate value of these securities was $149,996, representing 1.4% of net assets for the Pennsylvania Fund. (v) Inverse floating rate security. (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 funds hold the following restricted securities: TOTAL % ACQUISITION ACQUISITION CURRENT OF NET FUND DESCRIPTION DATE COST MARKET VALUE ASSETS - -------------------------------------------------------------------------------------------------------------------------------- Mississippi Commonwealth of Puerto Rico, ROLS, FGIC, 7.553%, 2016 8/05/02 $4,023,905 $ 3,996,537 Fund Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2013 5/20/99 1,072,720 1,123,060 Puerto Rico Municipal Finance Agency, RITES, FSA, 7.099%, 2017 1/06/00 703,620 844,800 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2013 9/30/99 509,110 604,830 - -------------------------------------------------------------------------------------------------------------------------------- Total Restricted Securities $ 6,569,227 7.7% =========== === New York Commonwealth of Puerto Rico, ROLS, XLCA, 7.483%, 2017 10/22/01 $1,634,526 $ 1,741,311 Fund Guam Power Authority Rev., "B-1", RITES, AMBAC, 6.565%, 2014 5/20/99 531,950 560,950 Niagara Falls, NY, Bridge Commission Toll Rev., RITES, FGIC, 6.565%, 2015 5/21/99 3,755,920 4,095,490 Triborough Bridge & Tunnel Authority Rev., NY, RITES, ETM, 7.035%, 2017 4/18/00 5,018,300 6,202,300 - -------------------------------------------------------------------------------------------------------------------------------- Total Restricted Securities $12,600,051 7.7% =========== === North Carolina Commonwealth of Puerto Rico, Highway & Transportation 2/26/99 $7,037,419 $ 7,611,167 Fund Authority Rev., RITES, FSA, 8.075%, 2018 North Carolina Eastern Municipal Power Agency, RITES, AMBAC, 8.045%, 2018 5/26/00 6,552,130 8,873,540 North Carolina Municipal Power Agency, Catawba Electric Rev., ROLS, MBIA, 7.026%, 2019 3/03/03 5,726,600 5,752,400 North Carolina Municipal Power Agency, Catawba Electric Rev., ROLS, MBIA, 7.026%, 2020 3/03/03 3,376,680 3,441,120 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2016 9/30/99 1,471,890 1,894,410 - -------------------------------------------------------------------------------------------------------------------------------- Total Restricted Securities $27,572,637 8.2% =========== === Pennsylvania Commonwealth of Puerto Rico Highway & Transportation 4/25/03 $1,969,560 $ 1,975,440 Fund Authority, ROLS, MBIA, 7.553%, 2020 Commonwealth of Puerto Rico, ROLS, FGIC, 7.553%, 2015 8/05/02 1,292,920 1,268,260 Commonwealth of Puerto Rico, ROLS, XLCA, 7.483%, 2017 10/22/01 1,210,760 1,289,860 Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2014 5/20/99 2,308,663 2,434,523 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2013 9/30/99 509,110 604,830 - -------------------------------------------------------------------------------------------------------------------------------- Total Restricted Securities $ 7,572,913 6.9% =========== === South Carolina Commonwealth of Puerto Rico, RITES, ETM, 7.094%, 2018 10/05/00 $2,068,200 $ 2,301,000 Fund Commonwealth of Puerto Rico, RITES, ETM, 7.094%, 2019 10/05/00 1,795,115 2,010,680 Commonwealth of Puerto Rico, RITES, MBIA, 7.594%, 2020 3/30/00 2,044,880 2,299,760 Commonwealth of Puerto Rico, RITES, FSA, 8.107%, 2016 1/06/00 883,592 980,118 Puerto Rico Electric Power Authority, RITES, FSA, 6.558%, 2015 9/16/99 976,500 1,055,720 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2013 9/30/99 1,400,053 1,663,283 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2019 3/31/99 1,470,326 1,680,120 - -------------------------------------------------------------------------------------------------------------------------------- Total Restricted Securities $11,990,681 7.7% =========== === Virginia Guam Power Authority Rev., RITES, AMBAC, 6.565%, 2015 5/20/99 $1,058,642 $ 1,134,291 Fund Puerto Rico Electric Power Authority Rev., RITES, FSA, 8/28/00 2,770,600 2,936,800 7.594%, 2017 Puerto Rico Electric Power Authority Rev., RITES, FSA, 7.334%, 2019 8/28/00 1,345,006 1,480,845 Puerto Rico Electric Power Authority Rev., RITES, FSA, 6.694%, 2020 8/28/00 1,240,075 1,432,900 Puerto Rico Municipal Finance Agency, RITES, FSA, 8.107%, 2016 1/06/00 1,148,670 1,274,153 Puerto Rico Municipal Finance Agency, RITES, FSA, 7.099%, 2017 1/06/00 576,968 692,736 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2013 9/30/99 2,036,440 2,419,320 Puerto Rico Public Finance Corp., RITES, AMBAC, 6.825%, 2016 3/31/99 569,030 631,470 Virginia Resources Authority Rev., ROLS, 6.519%, 2021 12/01/03 1,508,372 1,575,621 Virginia Resources Authority Rev., ROLS, 6.519%, 2023 12/01/03 1,612,568 1,701,792 Virginia Resources Authority Rev., ROLS, 6.519%, 2033 12/01/03 2,586,957 2,759,695 - -------------------------------------------------------------------------------------------------------------------------------- Total Restricted Securities $18,039,623 6.0% =========== === West Virginia Commonwealth of Puerto Rico, Public Improvement, RITES, MBIA, 3/30/00 $3,090,720 $ 3,449,640 Fund 7.594%, 2019 Puerto Rico, Municipal Finance Agency, RITES, FSA, 7.099%, 2017 1/06/00 844,344 1,013,760 West Virginia Building Commission, "A", RITES, AMBAC, 6.765%, 2018 5/05/99 4,888,561 5,656,961 West Virginia Building Commission, "B", RITES, AMBAC, 6.765%, 2018 5/05/99 1,351,925 1,564,425 - -------------------------------------------------------------------------------------------------------------------------------- Total Restricted Securities $11,684,786 8.2% =========== === The following abbreviations are used in this report and are defined: BMA Bond Market Assn. COP Certificate of Participation ETM Escrowed to Maturity LIBOR London Interbank Offered Rate LOC Letter of Credit Insurers Inverse Floaters - ----------------------------------------------------------------------------------------------------------------- AMBAC AMBAC Indemnity Corp. RITES Residual Interest Tax-Exempt Security ASST GTY Assured Guaranty Insurance Co. ROLS Reset Option Longs CIFG CIFG IXIS Financial Guaranty CONNIE LEE Connie Lee Insurance Co. FGIC Financial Guaranty Insurance Co. FHA Federal Housing Administration FNMA Federal National Mortgage Assn. FSA Financial Security Assurance Inc. GNMA Government National Mortgage Assn. MBIA MBIA Insurance Corp. XLCA XL Capital Insurance Co. SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENTS OF ASSETS AND LIABILITIES At 9/30/06 (unaudited) These statements represent each fund's balance sheet, which details the assets and liabilities comprising the total value of each fund. MISSISSIPPI NEW YORK NORTH CAROLINA PENNSYLVANIA FUND FUND FUND FUND ASSETS - -------------------------------------------------------------------------------------------------------------------------------- Investments - Identified cost $79,484,502 $150,042,832 $308,832,423 $102,842,449 Unrealized appreciation (depreciation) 4,061,056 11,110,926 20,547,672 4,948,530 - -------------------------------------------------------------------------------------------------------------------------------- Total investments, at value $83,545,558 $161,153,758 $329,380,095 $107,790,979 Cash 3,901 59,155 62,732 80,721 Receivable for investments sold 170,732 455,000 60,000 275,000 Receivable for fund shares sold 66,287 79,181 593,924 113,250 Interest receivable 1,165,379 2,415,884 5,260,461 1,617,494 Receivable from investment adviser -- -- -- 8,331 Unrealized appreciation on interest rate swaps 69,455 127,225 263,066 23,202 Other assets 319 556 985 398 - -------------------------------------------------------------------------------------------------------------------------------- Total assets $85,021,631 $164,290,759 $335,621,263 $109,909,375 - -------------------------------------------------------------------------------------------------------------------------------- LIABILITIES - -------------------------------------------------------------------------------------------------------------------------------- Distributions payable $125,987 $215,516 $386,565 $133,041 Payable for investments purchased -- 968,528 -- -- Payable for fund shares reacquired 34,798 157,645 309,958 33,204 Unrealized depreciation on interest rate swaps 43,423 20,911 108,558 72,149 Payable to affiliates - Management fee 2,087 4,012 8,231 2,700 Shareholder servicing costs 1,801 3,322 8,831 6,881 Distribution and service fees 879 5,989 12,984 13,168 Administrative services fee 194 306 552 229 Payable for independent trustees' compensation 9,807 12,793 16,095 9,771 Accrued expenses and other liabilities 38,090 53,320 79,060 43,700 - -------------------------------------------------------------------------------------------------------------------------------- Total liabilities $257,066 $1,442,342 $930,834 $314,843 - -------------------------------------------------------------------------------------------------------------------------------- Net assets $84,764,565 $162,848,417 $334,690,429 $109,594,532 - -------------------------------------------------------------------------------------------------------------------------------- NET ASSETS CONSIST OF - -------------------------------------------------------------------------------------------------------------------------------- Paid-in capital $80,985,222 $151,080,727 $313,634,342 $104,808,869 Unrealized appreciation (depreciation) on investments 4,087,088 11,217,240 20,702,180 4,899,583 Accumulated net realized gain (loss) on investments (247,213) 999,367 902,980 36,986 Accumulated distributions in excess of net investment income (60,532) (448,917) (549,073) (150,906) - -------------------------------------------------------------------------------------------------------------------------------- Net assets $84,764,565 $162,848,417 $334,690,429 $109,594,532 - -------------------------------------------------------------------------------------------------------------------------------- Statements of Assets and Liabilities (unaudited) - continued MISSISSIPPI NEW YORK NORTH CAROLINA PENNSYLVANIA FUND FUND FUND FUND Net Assets Class A $74,635,218 $119,896,982 $271,422,024 $72,574,677 Class B 10,129,347 27,761,080 30,690,242 37,019,855 Class C -- 15,190,355 32,578,163 -- - -------------------------------------------------------------------------------------------------------------------------------- Total net assets $84,764,565 $162,848,417 $334,690,429 $109,594,532 - -------------------------------------------------------------------------------------------------------------------------------- Shares of beneficial interest outstanding Class A 7,586,331 10,658,512 22,705,039 7,074,139 Class B 1,028,261 2,475,829 2,570,916 3,599,267 Class C -- 1,352,339 2,727,018 -- - -------------------------------------------------------------------------------------------------------------------------------- Total shares of beneficial interest outstanding 8,614,592 14,486,680 28,002,973 10,673,406 - -------------------------------------------------------------------------------------------------------------------------------- Class A shares Net asset value per share (net assets/shares of beneficial interest outstanding) $9.84 $11.25 $11.95 $10.26 - -------------------------------------------------------------------------------------------------------------------------------- Offering price per share (100/95.25Xnet asset value per share) $10.33 $11.81 $12.55 $10.77 - -------------------------------------------------------------------------------------------------------------------------------- Class B shares Net asset value and offering price per share (net assets/shares of beneficial interest outstanding) $9.85 $11.21 $11.94 $10.29 - -------------------------------------------------------------------------------------------------------------------------------- Class C shares Net asset value and offering price per share (net assets/shares of beneficial interest outstanding) $-- $11.23 $11.95 $-- - -------------------------------------------------------------------------------------------------------------------------------- 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 Statements of Assets and Liabilities (unaudited) - continued SOUTH WEST CAROLINA TENNESSEE VIRGINIA VIRGINIA FUND FUND FUND FUND ASSETS - --------------------------------------------------------------------------------------------------------------------------------- Investments - Identified cost $144,055,177 $105,107,274 $279,164,976 $132,091,143 Unrealized appreciation (depreciation) 9,452,921 5,861,268 14,991,340 7,920,762 - --------------------------------------------------------------------------------------------------------------------------------- Total investments, at value $153,508,098 $110,968,542 $294,156,316 $140,011,905 Cash 65,114 24,530 75,212 61,683 Receivable for investments sold -- 1,020,000 2,889,912 160,000 Receivable for fund shares sold 243,573 17,046 267,790 102,122 Interest receivable 2,426,769 1,603,215 4,598,196 2,335,354 Unrealized appreciation on interest rate swaps 118,010 441,278 600,740 118,010 Other assets 525 424 912 500 - --------------------------------------------------------------------------------------------------------------------------------- Total assets $156,362,089 $114,075,035 $302,589,078 $142,789,574 - --------------------------------------------------------------------------------------------------------------------------------- LIABILITIES - --------------------------------------------------------------------------------------------------------------------------------- Distributions payable $156,533 $171,181 $423,765 $159,087 Payable for investments purchased 397,447 -- -- -- Payable for fund shares reacquired 355,491 196,777 516,903 90,063 Unrealized depreciation on interest rate swaps 86,846 -- -- -- Payable to affiliates - Management fee 3,830 2,807 7,427 3,508 Shareholder servicing costs 3,450 4,352 8,943 5,050 Distribution and service fees 5,718 4,069 10,142 4,709 Administrative services fee 295 236 505 277 Payable for independent trustees' compensation 15,410 12,615 16,222 15,183 Accrued expenses and other liabilities 46,835 44,703 79,178 45,066 - --------------------------------------------------------------------------------------------------------------------------------- Total liabilities $1,071,855 $436,740 $1,063,085 $322,943 - --------------------------------------------------------------------------------------------------------------------------------- Net assets $155,290,234 $113,638,295 $301,525,993 $142,466,631 - --------------------------------------------------------------------------------------------------------------------------------- NET ASSETS CONSIST OF - --------------------------------------------------------------------------------------------------------------------------------- Paid-in capital $146,132,172 $107,517,794 $286,466,325 $134,629,052 Unrealized appreciation (depreciation) on investments 9,484,085 6,302,546 15,592,080 8,038,772 Accumulated net realized gain (loss) on investments (306,114) 27,228 150,999 9,845 Accumulated distributions in excess of net investment income (19,909) (209,273) (683,411) (211,038 - --------------------------------------------------------------------------------------------------------------------------------- Net assets $155,290,234 $113,638,295 $301,525,993 $142,466,631 - --------------------------------------------------------------------------------------------------------------------------------- Statements of Assets and Liabilities (unaudited) - continued SOUTH WEST CAROLINA TENNESSEE VIRGINIA VIRGINIA FUND FUND FUND FUND Net Assets Class A $131,892,601 $98,886,750 $273,842,334 $130,919,547 Class B 23,397,633 14,751,545 14,683,969 11,547,084 Class C -- -- 12,999,690 -- - --------------------------------------------------------------------------------------------------------------------------------- Total net assets $155,290,234 $113,638,295 $301,525,993 $142,466,631 - --------------------------------------------------------------------------------------------------------------------------------- Shares of beneficial interest outstanding Class A 10,683,291 9,296,694 23,835,042 11,312,503 Class B 1,896,384 1,387,887 1,279,054 998,257 Class C -- -- 1,131,741 -- - --------------------------------------------------------------------------------------------------------------------------------- Total shares of beneficial interest outstanding 12,579,675 10,684,581 26,245,837 12,310,760 - --------------------------------------------------------------------------------------------------------------------------------- Class A shares Net asset value per share (net assets/shares of beneficial interest outstanding) $12.35 $10.64 $11.49 $11.57 - --------------------------------------------------------------------------------------------------------------------------------- Offering price per share (100/95.25Xnet asset value per share) $12.97 $11.17 $12.06 $12.15 - --------------------------------------------------------------------------------------------------------------------------------- Class B shares Net asset value and offering price per share (net assets/shares of beneficial interest outstanding) $12.34 $10.63 $11.48 $11.57 - --------------------------------------------------------------------------------------------------------------------------------- Class C shares Net asset value and offering price per share (net assets/shares of beneficial interest outstanding) $-- $-- $11.49 $-- - --------------------------------------------------------------------------------------------------------------------------------- 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 STATEMENTS OF OPERATIONS Six months ended 9/30/06 (unaudited) These statements describe how much each fund earned in investment income and accrued in expenses. They also describe any gains or losses generated by each fund's operations. MISSISSIPPI NEW YORK NORTH CAROLINA PENNSYLVANIA FUND FUND FUND FUND NET INVESTMENT INCOME - -------------------------------------------------------------------------------------------------------------------------------- Interest $2,199,035 $4,286,368 $8,481,564 $2,674,907 - -------------------------------------------------------------------------------------------------------------------------------- Expenses - Management fee $233,926 $450,649 $909,136 $300,832 Distribution and service fees 38,700 374,606 784,376 197,750 Shareholder servicing costs 55,074 107,201 202,864 71,934 Administrative services fee 12,006 19,295 34,713 14,257 Independent trustees' compensation 1,940 3,100 6,267 3,117 Custodian fee 18,687 31,142 50,367 25,633 Shareholder communications 4,463 10,601 17,423 8,484 Auditing fees 20,883 20,883 20,883 21,085 Legal fees 1,841 2,626 4,228 2,213 Miscellaneous 22,077 29,897 35,485 24,093 - -------------------------------------------------------------------------------------------------------------------------------- Total expenses $409,597 $1,050,000 $2,065,742 $669,398 - -------------------------------------------------------------------------------------------------------------------------------- Fees paid indirectly (3,885) (6,918) (12,822) (4,992) Reduction of expenses by investment adviser (106,548) (205,261) (414,091) (198,238) - -------------------------------------------------------------------------------------------------------------------------------- Net expenses $299,164 $837,821 $1,638,829 $466,168 - -------------------------------------------------------------------------------------------------------------------------------- Net investment income $1,899,871 $3,448,547 $6,842,735 $2,208,739 - -------------------------------------------------------------------------------------------------------------------------------- REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS - -------------------------------------------------------------------------------------------------------------------------------- Realized gain (loss) (identified cost basis) - Investment transactions $51,641 $260,016 $517,979 $193,632 Swap transactions 30,279 48,036 279,967 18,587 - -------------------------------------------------------------------------------------------------------------------------------- Net realized gain (loss) on investments $81,920 $308,052 $797,946 $212,219 - -------------------------------------------------------------------------------------------------------------------------------- Change in unrealized appreciation (depreciation) - Investments $832,681 $1,396,069 $2,125,711 $1,012,708 Swap transactions (11,937) (10,371) (54,496) (160,504) - -------------------------------------------------------------------------------------------------------------------------------- Net unrealized gain (loss) on investments $820,744 $1,385,698 $2,071,215 $852,204 - -------------------------------------------------------------------------------------------------------------------------------- Net realized and unrealized gain (loss) on investments $902,664 $1,693,750 $2,869,161 $1,064,423 - -------------------------------------------------------------------------------------------------------------------------------- Change in net assets from operations $2,802,535 $5,142,297 $9,711,896 $3,273,162 - -------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Statements of Operations (unaudited) - continued SOUTH CAROLINA TENNESSEE VIRGINIA WEST VIRGINIA FUND FUND FUND FUND NET INVESTMENT INCOME - -------------------------------------------------------------------------------------------------------------------------------- Interest $4,001,003 $2,966,024 $7,952,763 $3,729,952 - -------------------------------------------------------------------------------------------------------------------------------- Expenses - Management fee $427,537 $315,763 $830,294 $401,284 Distribution and service fees 352,486 253,925 621,432 294,322 Shareholder servicing costs 96,461 70,729 187,509 89,050 Administrative services fee 18,518 14,761 32,068 17,637 Independent trustees' compensation 3,482 3,118 6,245 3,580 Custodian fee 24,567 19,281 53,735 23,456 Shareholder communications 7,540 6,910 16,880 7,260 Auditing fees 20,883 20,883 20,883 20,883 Legal fees 2,508 2,612 3,944 2,567 Miscellaneous 24,172 22,462 33,396 22,536 - -------------------------------------------------------------------------------------------------------------------------------- Total expenses $978,154 $730,444 $1,806,386 $882,575 - -------------------------------------------------------------------------------------------------------------------------------- Fees paid indirectly (7,514) (5,012) (11,888) (5,212) Reduction of expenses by investment adviser (194,733) (143,823) (378,180) (182,776) - -------------------------------------------------------------------------------------------------------------------------------- Net expenses $775,907 $581,609 $1,416,318 $694,587 - -------------------------------------------------------------------------------------------------------------------------------- Net investment income $3,225,096 $2,384,415 $6,536,445 $3,035,365 - -------------------------------------------------------------------------------------------------------------------------------- REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS - -------------------------------------------------------------------------------------------------------------------------------- Realized gain (loss) (identified cost basis) - Investment transactions $(1,337) $204,792 $272,328 $48,101 Swap transactions 109,457 (311,473) (200,021) 130,827 - -------------------------------------------------------------------------------------------------------------------------------- Net realized gain (loss) on investments $108,120 $(106,681) $72,307 $178,928 - -------------------------------------------------------------------------------------------------------------------------------- Change in unrealized appreciation (depreciation) - Investments $1,118,233 $239,037 $1,157,357 $1,008,446 Swap transactions (117,895) 592,962 613,711 19,443 - -------------------------------------------------------------------------------------------------------------------------------- Net unrealized gain (loss) on investments $1,000,338 $831,999 $1,771,068 $1,027,889 - -------------------------------------------------------------------------------------------------------------------------------- Net realized and unrealized gain (loss) on investments $1,108,458 $725,318 $1,843,375 $1,206,817 - -------------------------------------------------------------------------------------------------------------------------------- Change in net assets from operations $4,333,554 $3,109,733 $8,379,820 $4,242,182 - -------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENTS OF CHANGES IN NET ASSETS (unaudited) These statements describe the increases and/or decreases in net assets resulting from operations, any distributions, and any shareholder transactions. NORTH MISSISSIPPI NEW YORK CAROLINA PENNSYLVANIA FUND FUND FUND FUND SIX MONTHS ENDED 9/30/06 CHANGE IN NET ASSETS OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income $1,899,871 $3,448,547 $6,842,735 $2,208,739 Net realized gain (loss) on investments 81,920 308,052 797,946 212,219 Net unrealized gain (loss) on investments 820,744 1,385,698 2,071,215 852,204 - -------------------------------------------------------------------------------------------------------------------------------- Change in net assets from operations $2,802,535 $5,142,297 $9,711,896 $3,273,162 - -------------------------------------------------------------------------------------------------------------------------------- DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income Class A $(1,651,979) $(2,576,694) $(5,668,740) $(1,504,568) Class B (185,892) (521,666) (561,831) (644,688) Class C -- (292,717) (575,848) -- - -------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(1,837,871) $(3,391,077) $(6,806,419) $(2,149,256) - -------------------------------------------------------------------------------------------------------------------------------- Change in net assets from fund share transactions $(2,261,619) $(4,488,094) $(3,171,747) $(2,600,926) - -------------------------------------------------------------------------------------------------------------------------------- Total change in net assets $(1,296,955) $(2,736,874) $(266,270) $(1,477,020) - -------------------------------------------------------------------------------------------------------------------------------- NET ASSETS - -------------------------------------------------------------------------------------------------------------------------------- At beginning of period 86,061,520 165,585,291 334,956,699 111,071,552 At end of period $84,764,565 $162,848,417 $334,690,429 $109,594,532 - -------------------------------------------------------------------------------------------------------------------------------- Accumulated distributions in excess of net investment income $(60,532) $(448,917) $(549,073) $(150,906) - -------------------------------------------------------------------------------------------------------------------------------- Statement of Changes in Net Assets - continued SOUTH CAROLINA TENNESSEE VIRGINIA WEST VIRGINIA FUND FUND FUND FUND SIX MONTHS ENDED 9/30/06 CHANGE IN NET ASSETS OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income $3,225,096 $2,384,415 $6,536,445 $3,035,365 Net realized gain (loss) on investments 108,120 (106,681) 72,307 178,928 Net unrealized gain (loss) on investments 1,000,338 831,999 1,771,068 1,027,889 - -------------------------------------------------------------------------------------------------------------------------------- Change in net assets from operations $4,333,554 $3,109,733 $8,379,820 $4,242,182 - -------------------------------------------------------------------------------------------------------------------------------- DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income Class A $(2,717,800) $(2,050,898) $(5,872,798) $(2,754,634) Class B (434,014) (286,802) (285,678) (207,761) Class C -- -- (236,808) -- - -------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(3,151,814) $(2,337,700) $(6,395,284) $(2,962,395) - -------------------------------------------------------------------------------------------------------------------------------- Change in net assets from fund share transactions $(3,272,842) $(3,176,726) $(7,971,263) $(5,616,917) - -------------------------------------------------------------------------------------------------------------------------------- Total change in net assets $(2,091,102) $(2,404,693) $(5,986,727) $(4,337,130) - -------------------------------------------------------------------------------------------------------------------------------- NET ASSETS - -------------------------------------------------------------------------------------------------------------------------------- At beginning of period 157,381,336 116,042,988 307,512,720 146,803,761 At end of period $155,290,234 $113,638,295 $301,525,993 $142,466,631 - -------------------------------------------------------------------------------------------------------------------------------- Accumulated distributions in excess of net investment income $(19,909) $(209,273) $(683,411) $(211,038) - -------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Statements of Changes in Net Assets - continued NORTH MISSISSIPPI NEW YORK CAROLINA PENNSYLVANIA FUND FUND FUND FUND YEAR ENDED 3/31/06 CHANGE IN NET ASSETS OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income $3,838,529 $7,198,028 $14,258,999 $4,423,018 Net realized gain (loss) on investments 286,632 809,461 1,019,442 343,891 Net unrealized gain (loss) on investments (1,103,224) (2,621,239) (3,747,594) (599,785) - -------------------------------------------------------------------------------------------------------------------------------- Change in net assets from operations $3,021,937 $5,386,250 $11,530,847 $4,167,124 - -------------------------------------------------------------------------------------------------------------------------------- DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income Class A $(3,413,002) $(5,263,309) $(11,694,658) $(2,989,205) Class B (412,712) (1,168,804) (1,306,917) (1,394,784) Class C -- (642,938) (1,170,926) -- From net realized gain on investments Class A -- (564,709) (1,065,305) -- Class B -- (152,917) (135,859) -- Class C -- (82,521) (127,766) -- - -------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(3,825,714) $(7,875,198) $(15,501,431) $(4,383,989) - -------------------------------------------------------------------------------------------------------------------------------- Change in net assets from fund share transactions $(4,252,560) $(12,844,892) $(14,095,028) $1,890,721 - -------------------------------------------------------------------------------------------------------------------------------- Total change in net assets $(5,056,337) $(15,333,840) $(18,065,612) $1,673,856 - -------------------------------------------------------------------------------------------------------------------------------- NET ASSETS - -------------------------------------------------------------------------------------------------------------------------------- At beginning of period 91,117,857 180,919,131 353,022,311 109,397,696 At end of period $86,061,520 $165,585,291 $334,956,699 $111,071,552 - -------------------------------------------------------------------------------------------------------------------------------- Accumulated distributions in excess of net investment income $(122,532) $(506,387) $(585,389) $(210,389) - -------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Statements of Changes in Net Assets - continued SOUTH CAROLINA TENNESSEE VIRGINIA WEST VIRGINIA FUND FUND FUND FUND YEAR ENDED 3/31/06 CHANGE IN NET ASSETS OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income $6,758,875 $4,974,219 $13,515,722 $6,088,091 Net realized gain (loss) on investments 690,541 481,186 1,195,139 401,417 Net unrealized gain (loss) on investments (2,164,942) (1,720,907) (4,166,118) (1,928,663) - -------------------------------------------------------------------------------------------------------------------------------- Change in net assets from operations $5,284,474 $3,734,498 $10,544,743 $4,560,845 - -------------------------------------------------------------------------------------------------------------------------------- DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income Class A $(5,659,836) $(4,261,947) $(12,295,006) $(5,562,081) Class B (1,056,777) (664,458) (688,908) (467,115) Class C -- -- (466,544) -- From net realized gain on investments Class A -- (373,368) -- -- Class B -- (67,191) -- -- - -------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(6,716,613) $(5,366,964) $(13,450,458) $(6,029,196) - -------------------------------------------------------------------------------------------------------------------------------- Change in net assets from fund share transactions $(2,560,303) $(7,850,463) $(6,612,020) $(521,038) - -------------------------------------------------------------------------------------------------------------------------------- Total change in net assets $(3,992,442) $(9,482,929) $(9,517,735) $(1,989,389) - -------------------------------------------------------------------------------------------------------------------------------- NET ASSETS - -------------------------------------------------------------------------------------------------------------------------------- At beginning of period 161,373,778 125,525,917 317,030,455 148,793,150 At end of period $157,381,336 $116,042,988 $307,512,720 $146,803,761 - -------------------------------------------------------------------------------------------------------------------------------- Accumulated distributions in excess of net investment income $(93,191) $(255,988) $(824,572) $(284,008) - -------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Statements FINANCIAL HIGHLIGHTS MFS(R) MISSISSIPPI MUNICIPAL BOND FUND The financial highlights table is intended to help you understand the fund's financial performance for the semiannual period and the past 5 fiscal years. Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of all distributions) held for the entire period. SIX MONTHS YEARS ENDED 3/31 ENDED ---------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS A (UNAUDITED) Net asset value, beginning of period $9.73 $9.82 $10.02 $10.02 $9.61 $9.78 - -------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.22 $0.44 $0.46 $0.46 $0.46 $0.49 Net realized and unrealized gain (loss) on investments 0.10 (0.09) (0.19) 0.01 0.44 (0.16) - -------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.32 $0.35 $0.27 $0.47 $0.90 $0.33 - -------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.21) $(0.44) $(0.47) $(0.47) $(0.49) $(0.50) - -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $9.84 $9.73 $9.82 $10.02 $10.02 $9.61 - -------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 3.38(n) 3.59 2.76 4.77 9.48 3.45 - -------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 0.87(a) 0.89 0.83 0.82 0.84 0.85 Expenses after expense reductions (f) 0.62(a) 0.64 0.58 0.62 0.64 0.65 Net investment income 4.56(a) 4.48 4.70 4.61 4.70 5.05 Portfolio turnover 9 9 19 12 22 6 Net assets at end of period (000 Omitted) $74,635 $75,597 $79,574 $82,507 $87,724 $76,004 - -------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) MISSISSIPPI MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED -------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS B (UNAUDITED) Net asset value, beginning of period $9.74 $9.84 $10.03 $10.04 $9.62 $9.79 - -------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.19 $0.37 $0.39 $0.38 $0.38 $0.42 Net realized and unrealized gain (loss) on investments 0.10 (0.10) (0.19) (0.01)(g) 0.44 (0.17) - -------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.29 $0.27 $0.20 $0.37 $0.82 $0.25 - -------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.18) $(0.37) $(0.39) $(0.38) $(0.40) $(0.42) - -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $9.85 $9.74 $9.84 $10.03 $10.04 $9.62 - -------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.99(n) 2.71 2.08 3.80 8.67 2.62 - -------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.63(a) 1.65 1.60 1.64 1.67 1.65 Expenses after expense reductions (f) 1.38(a) 1.40 1.35 1.44 1.47 1.45 Net investment income 3.80(a) 3.72 3.93 3.79 3.86 4.23 Portfolio turnover 9 9 19 12 22 6 Net assets at end of period (000 Omitted) $10,129 $10,465 $11,544 $13,177 $12,900 $10,177 - -------------------------------------------------------------------------------------------------------------------------------- Any redemption fees charged by the fund during the 2005 fiscal year resulted in a per share impact of less than $0.01. (a) Annualized. (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. (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 Financial Highlights - continued MFS(R) NEW YORK MUNICIPAL BOND FUND The financial highlights table is intended to help you understand the fund's financial performance for the semiannual period and the past 5 fiscal years. Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of all distributions) held for the entire period. SIX MONTHS YEARS ENDED 3/31 ENDED -------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS A (UNAUDITED) Net asset value, beginning of period $11.13 $11.30 $11.53 $11.49 $10.94 $11.14 - -------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.25 $0.49 $0.51 $0.51 $0.52 $0.53 Net realized and unrealized gain (loss) on investments 0.11 (0.12) (0.24) 0.04 0.56 (0.18) - -------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.36 $0.37 $0.27 $0.55 $1.08 $0.35 - -------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.24) $(0.49) $(0.50) $(0.51) $(0.53) $(0.55) From net realized gain on investments -- (0.05) -- -- -- -- - -------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.24) $(0.54) $(0.50) $(0.51) $(0.53) $(0.55) - -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $11.25 $11.13 $11.30 $11.53 $11.49 $10.94 - -------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 3.30(n) 3.30 2.45 4.90 10.05 3.16 - -------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.07(a) 1.10 1.04 1.06 1.07 1.08 Expenses after expense reductions (f) 0.82(a) 0.85 0.79 0.86 0.87 0.88 Net investment income 4.41(a) 4.36 4.47 4.39 4.56 4.80 Portfolio turnover 5 12 20 13 17 18 Net assets at end of period (000 Omitted) $119,897 $118,476 $125,861 $131,642 $132,843 $121,717 - -------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) NEW YORK MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED ------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS B (UNAUDITED) Net asset value, beginning of period $11.09 $11.27 $11.49 $11.45 $10.93 $11.13 - ---------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ---------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.20 $0.41 $0.42 $0.42 $0.43 $0.45 Net realized and unrealized gain (loss) on investments 0.12 (0.14) (0.22) 0.04 0.54 (0.19) - ---------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.32 $0.27 $0.20 $0.46 $0.97 $0.26 - ---------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.20) $(0.40) $(0.42) $(0.42) $(0.45) $(0.46) From net realized gain on investments -- (0.05) -- -- -- -- - ---------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.20) $(0.45) $(0.42) $(0.42) $(0.45) $(0.46) - ---------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $11.21 $11.09 $11.27 $11.49 $11.45 $10.93 - ---------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.92(n) 2.43 1.77 4.12 8.96 2.39 - ---------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.83(a) 1.85 1.79 1.80 1.82 1.83 Expenses after expense reductions (f) 1.57(a) 1.60 1.54 1.60 1.62 1.63 Net investment income 3.67(a) 3.61 3.70 3.62 3.80 4.05 Portfolio turnover 5 12 20 13 17 18 Net assets at end of period (000 Omitted) $27,761 $30,046 $35,328 $41,509 $40,867 $29,903 - ---------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) NEW YORK MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED ----------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS C (UNAUDITED) Net asset value, beginning of period $11.11 $11.29 $11.51 $11.47 $10.93 $11.13 - ---------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ---------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.20 $0.41 $0.42 $0.42 $0.43 $0.45 Net realized and unrealized gain (loss) on investments 0.12 (0.14) (0.22) 0.04 0.56 (0.18) - ---------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.32 $0.27 $0.20 $0.46 $0.99 $0.27 - ---------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ---------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.20) $(0.40) $(0.42) $(0.42) $(0.45) $(0.47) From net realized gain on investments -- (0.05) -- -- -- -- - ---------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.20) $(0.45) $(0.42) $(0.42) $(0.45) $(0.47) - ---------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $11.23 $11.11 $11.29 $11.51 $11.47 $10.93 - ---------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.91(n) 2.43 1.78 4.12 9.14 2.39 - ---------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ---------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.83(a) 1.85 1.79 1.80 1.82 1.83 Expenses after expense reductions (f) 1.58(a) 1.60 1.54 1.60 1.62 1.63 Net investment income 3.68(a) 3.61 3.72 3.63 3.81 4.05 Portfolio turnover 5 12 20 13 17 18 Net assets at end of period (000 Omitted) $15,190 $17,064 $19,730 $21,907 $14,005 $10,178 - ---------------------------------------------------------------------------------------------------------------------------------- Any redemption fees charged by the fund during the 2005 fiscal year resulted in a per share impact of less than $0.01. (a) Annualized. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (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 Financial Highlights - continued MFS(R) NORTH CAROLINA MUNICIPAL BOND FUND The financial highlights table is intended to help you understand the fund's financial performance for the semiannual period and the past 5 fiscal years. Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of all distributions) held for the entire period. SIX MONTHS YEARS ENDED 3/31 ENDED -------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS A (UNAUDITED) Net asset value, beginning of period $11.85 $11.99 $12.30 $12.24 $11.68 $11.89 - -------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.25 $0.51 $0.53 $0.53 $0.54 $0.57 Net realized and unrealized gain (loss) on investments 0.10 (0.09) (0.27) 0.07 0.58 (0.21) - -------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.35 $0.42 $0.26 $0.60 $1.12 $0.36 - -------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.25) $(0.51) $(0.53) $(0.53) $(0.56) $(0.57) From net realized gain on investments -- (0.05) (0.04) (0.01) -- -- - -------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.25) $(0.56) $(0.57) $(0.54) $(0.56) $(0.57) - -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $11.95 $11.85 $11.99 $12.30 $12.24 $11.68 - -------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 3.01(n) 3.49 2.15 5.01 9.71 3.08 - -------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.13(a) 1.14 1.10 1.12 1.11 1.12 Expenses after expense reductions (f) 0.87(a) 0.89 0.85 0.92 0.91 0.92 Net investment income 4.26(a) 4.24 4.38 4.30 4.50 4.78 Portfolio turnover 3 8 9 9 20 13 Net assets at end of period (000 Omitted) $271,422 $270,124 $279,875 $305,185 $316,687 $303,250 - -------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) NORTH CAROLINA MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED -------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS B (UNAUDITED) Net asset value, beginning of period $11.83 $11.98 $12.29 $12.23 $11.67 $11.89 - -------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.21 $0.43 $0.45 $0.45 $0.47 $0.48 Net realized and unrealized gain (loss) on investments 0.11 (0.10) (0.27) 0.07 0.57 (0.20) - -------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.32 $0.33 $0.18 $0.52 $1.04 $0.28 - -------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.21) $(0.43) $(0.45) $(0.45) $(0.48) $(0.50) From net realized gain on investments -- (0.05) (0.04) (0.01) -- -- - -------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.21) $(0.48) $(0.49) $(0.46) $(0.48) $(0.50) - -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $11.94 $11.83 $11.98 $12.29 $12.23 $11.67 - -------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.76(n) 2.73 1.49 4.33 9.01 2.33 - -------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.78(a) 1.79 1.75 1.76 1.76 1.77 Expenses after expense reductions (f) 1.53(a) 1.54 1.50 1.56 1.56 1.57 Net investment income 3.62(a) 3.59 3.72 3.64 3.85 4.07 Portfolio turnover 3 8 9 9 20 13 Net assets at end of period (000 Omitted) $30,690 $32,610 $40,251 $50,363 $59,116 $57,534 - -------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) NORTH CAROLINA MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED -------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS C (UNAUDITED) Net asset value, beginning of period $11.84 $11.98 $12.29 $12.23 $11.67 $11.89 - -------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.21 $0.43 $0.45 $0.45 $0.46 $0.48 Net realized and unrealized gain (loss) on investments 0.11 (0.09) (0.27) 0.07 0.58 (0.20) - -------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.32 $0.34 $0.18 $0.52 $1.04 $0.28 - -------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.21) $(0.43) $(0.45) $(0.45) $(0.48) $(0.50) From net realized gain on investments -- (0.05) (0.04) (0.01) -- -- - -------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.21) $(0.48) $(0.49) $(0.46) $(0.48) $(0.50) - -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $11.95 $11.84 $11.98 $12.29 $12.23 $11.67 - -------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.76(n) 2.82 1.49 4.33 9.01 2.33 - -------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.77(a) 1.79 1.76 1.77 1.76 1.77 Expenses after expense reductions (f) 1.52(a) 1.54 1.51 1.57 1.56 1.57 Net investment income 3.61(a) 3.61 3.76 3.67 3.84 4.07 Portfolio turnover 3 8 9 9 20 13 Net assets at end of period (000 Omitted) $32,578 $32,223 $32,897 $35,256 $31,836 $23,741 - -------------------------------------------------------------------------------------------------------------------------------- Any redemption fees charged by the fund during the 2005 fiscal year resulted in a per share impact of less than $0.01. (a) Annualized. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (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 Financial Highlights - continued MFS(R) PENNSYLVANIA MUNICIPAL BOND FUND The financial highlights table is intended to help you understand the fund's financial performance for the semiannual period and the past 5 fiscal years. Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of all distributions) held for the entire period. SIX MONTHS YEARS ENDED 3/31 ENDED ---------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS A (UNAUDITED) Net asset value, beginning of period $10.15 $10.17 $10.31 $10.21 $9.73 $9.85 - -------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.22 $0.43 $0.44 $0.42 $0.45 $0.48 Net realized and unrealized gain (loss) on investments 0.10 (0.02) (0.14) 0.10 0.51 (0.11) - -------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.32 $0.41 $0.30 $0.52 $0.96 $0.37 - -------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.21) $(0.43) $(0.44) $(0.42) $(0.48) $(0.49) - -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $10.26 $10.15 $10.17 $10.31 $10.21 $9.73 - -------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 3.22(n) 4.08 2.97 5.12 10.12 3.85 - -------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 0.96(a) 0.96 0.94 0.94 0.96 0.89 Expenses after expense reductions (f) 0.60(a) 0.60 0.60 0.64 0.48 0.36 Net investment income 4.30(a) 4.24 4.33 4.12 4.47 4.90 Portfolio turnover 3 9 20 24 19 19 Net assets at end of period (000 Omitted) $72,575 $72,429 $67,942 $75,083 $68,705 $47,661 - -------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) PENNSYLVANIA MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED -------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS B (UNAUDITED) Net asset value, beginning of period $10.18 $10.20 $10.34 $10.24 $9.75 $9.88 - -------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.18 $0.36 $0.36 $0.34 $0.36 $0.40 Net realized and unrealized gain (loss) on investments 0.10 (0.03) (0.14) 0.10 0.53 (0.12) - -------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.28 $0.33 $0.22 $0.44 $0.89 $0.28 - -------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.17) $(0.35) $(0.36) $(0.34) $(0.40) $(0.41) - -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $10.29 $10.18 $10.20 $10.34 $10.24 $9.75 - -------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.83(n) 3.30 2.19 4.38 9.21 2.86 - -------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.72(a) 1.72 1.71 1.74 1.78 1.73 Expenses after expense reductions (f) 1.36(a) 1.36 1.37 1.44 1.30 1.20 Net investment income 3.54(a) 3.49 3.56 3.32 3.62 4.06 Portfolio turnover 3 9 20 24 19 19 Net assets at end of period (000 Omitted) $37,020 $38,642 $41,455 $48,480 $46,941 $28,286 - -------------------------------------------------------------------------------------------------------------------------------- Any redemption fees charged by the fund during the 2005 fiscal year resulted in a per share impact of less than $0.01. (a) Annualized. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (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 Financial Highlights - continued MFS(R) SOUTH CAROLINA MUNICIPAL BOND FUND The financial highlights table is intended to help you understand the fund's financial performance for the semiannual period and the past 5 fiscal years. Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of all distributions) held for the entire period. SIX MONTHS YEARS ENDED 3/31 ENDED -------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS A (UNAUDITED) Net asset value, beginning of period $12.25 $12.36 $12.61 $12.53 $12.00 $12.15 - -------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.26 $0.54 $0.56 $0.55 $0.58 $0.60 Net realized and unrealized gain (loss) on investments 0.09 (0.11) (0.25) 0.10 0.54 (0.16) - -------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.35 $0.43 $0.31 $0.65 $1.12 $0.44 - -------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.25) $(0.54) $(0.56) $(0.57) $(0.59) $(0.59) - -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $12.35 $12.25 $12.36 $12.61 $12.53 $12.00 - -------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.93(n) 3.48 2.52 5.30 9.51 3.68 - -------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.15(a) 1.17 1.14 1.14 1.15 1.14 Expenses after expense reductions (f) 0.90(a) 0.92 0.89 0.94 0.95 0.94 Net investment income 4.25(a) 4.35 4.50 4.39 4.68 4.91 Portfolio turnover 5 13 15 16 21 10 Net assets at end of period (000 Omitted) $131,893 $131,167 $130,342 $137,911 $129,844 $121,438 - -------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) SOUTH CAROLINA MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED ---------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS B (UNAUDITED) Net asset value, beginning of period $12.24 $12.36 $12.60 $12.52 $11.99 $12.14 - -------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.22 $0.46 $0.48 $0.47 $0.50 $0.52 Net realized and unrealized gain (loss) on investments 0.09 (0.12) (0.24) 0.10 0.54 (0.16) - -------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.31 $0.34 $0.24 $0.57 $1.04 $0.36 - -------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.21) $(0.46) $(0.48) $(0.49) $(0.51) $(0.51) - -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $12.34 $12.24 $12.36 $12.60 $12.52 $11.99 - -------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.60(n) 2.73 1.94 4.62 8.81 3.01 - -------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.81(a) 1.82 1.79 1.79 1.80 1.79 Expenses after expense reductions (f) 1.56(a) 1.57 1.54 1.59 1.60 1.59 Net investment income 3.61(a) 3.70 3.85 3.74 4.03 4.25 Portfolio turnover 5 13 15 16 21 10 Net assets at end of period (000 Omitted) $23,398 $26,214 $31,032 $36,817 $37,603 $34,139 - -------------------------------------------------------------------------------------------------------------------------------- (a) Annualized. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (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 Financial Highlights - continued MFS(R) TENNESSEE MUNICIPAL BOND FUND The financial highlights table is intended to help you understand the fund's financial performance for the semiannual period and the past 5 fiscal years. Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of all distributions) held for the entire period. SIX MONTHS YEARS ENDED 3/31 ENDED ---------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS A (UNAUDITED) Net asset value, beginning of period $10.56 $10.71 $10.96 $10.90 $10.43 $10.58 - -------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.22 $0.45 $0.45 $0.45 $0.47 $0.49 Net realized and unrealized gain (loss) on investments 0.08 (0.12) (0.18) 0.06 0.49 (0.14) - -------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.30 $0.33 $0.27 $0.51 $0.96 $0.35 - -------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.22) $(0.44) $(0.44) $(0.45) $(0.49) $(0.50) From net realized gain on investments -- (0.04) (0.08) -- -- -- - -------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.22) $(0.48) $(0.52) $(0.45) $(0.49) $(0.50) - -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $10.64 $10.56 $10.71 $10.96 $10.90 $10.43 - -------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.88(n) 3.13 2.53 4.80 9.34 3.36 - -------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.18(a) 1.19 1.16 1.14 1.17 1.14 Expenses after expense reductions (f) 0.93(a) 0.94 0.91 0.94 0.97 0.94 Net investment income 4.24(a) 4.17 4.16 4.08 4.35 4.66 Portfolio turnover 5 5 11 19 16 12 Net assets at end of period (000 Omitted) $98,887 $98,825 $104,837 $118,990 $115,819 $101,294 - -------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) TENNESSEE MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED ---------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS B (UNAUDITED) Net asset value, beginning of period $10.56 $10.70 $10.95 $10.89 $10.42 $10.57 - -------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.19 $0.38 $0.38 $0.38 $0.40 $0.42 Net realized and unrealized gain (loss) on investments 0.07 (0.11) (0.18) 0.06 0.49 (0.14) - -------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.26 $0.27 $0.20 $0.44 $0.89 $0.28 - -------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.19) $(0.37) $(0.37) $(0.38) $(0.42) $(0.43) From net realized gain on investments -- (0.04) (0.08) -- -- -- - -------------------------------------------------------------------------------------------------------------------------------- Total distributions declared to shareholders $(0.19) $(0.41) $(0.45) $(0.38) $(0.42) $(0.43) - -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $10.63 $10.56 $10.70 $10.95 $10.89 $10.42 - -------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.45(n) 2.56 1.87 4.12 8.64 2.69 - -------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.83(a) 1.84 1.81 1.79 1.82 1.79 Expenses after expense reductions (f) 1.58(a) 1.59 1.56 1.59 1.62 1.59 Net investment income 3.60(a) 3.52 3.51 3.43 3.70 4.00 Portfolio turnover 5 5 11 19 16 12 Net assets at end of period (000 Omitted) $14,752 $17,217 $20,689 $24,306 $27,546 $26,183 - -------------------------------------------------------------------------------------------------------------------------------- (a) Annualized. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (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 Financial Highlights - continued MFS(R) VIRGINIA MUNICIPAL BOND FUND The financial highlights table is intended to help you understand the fund's financial performance for the semiannual period and the past 5 fiscal years. Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of all distributions) held for the entire period. SIX MONTHS YEARS ENDED 3/31 ENDED -------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS A (UNAUDITED) Net asset value, beginning of period $11.41 $11.52 $11.73 $11.61 $11.14 $11.36 - -------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.25 $0.51 $0.53 $0.53 $0.53 $0.54 Net realized and unrealized gain (loss) on investments 0.08 (0.12) (0.21) 0.12 0.47 (0.22) - -------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.33 $0.39 $0.32 $0.65 $1.00 $0.32 - -------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.25) $(0.50) $(0.53) $(0.53) $(0.53) $(0.54) - -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $11.49 $11.41 $11.52 $11.73 $11.61 $11.14 - -------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.89(n) 3.45 2.83 5.70 9.10 2.87 - -------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.14(a) 1.15 1.10 1.13 1.13 1.12 Expenses after expense reductions (f) 0.88(a) 0.90 0.85 0.93 0.93 0.92 Net investment income 4.39(a) 4.38 4.63 4.53 4.62 4.77 Portfolio turnover 3 13 11 11 13 14 Net assets at end of period (000 Omitted) $273,842 $277,633 $285,185 $301,218 $308,164 $299,088 - -------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) VIRGINIA MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED -------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS B (UNAUDITED) Net asset value, beginning of period $11.40 $11.51 $11.72 $11.60 $11.13 $11.35 - -------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.21 $0.43 $0.46 $0.45 $0.46 $0.47 Net realized and unrealized gain (loss) on investments 0.08 (0.11) (0.21) 0.12 0.46 (0.22) - -------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.29 $0.32 $0.25 $0.57 $0.92 $0.25 - -------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.21) $(0.43) $(0.46) $(0.45) $(0.45) $(0.47) - -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $11.48 $11.40 $11.51 $11.72 $11.60 $11.13 - -------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.56(n) 2.78 2.16 5.02 8.40 2.20 - -------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.79(a) 1.80 1.75 1.77 1.78 1.78 Expenses after expense reductions (f) 1.54(a) 1.55 1.50 1.57 1.58 1.58 Net investment income 3.75(a) 3.73 3.98 3.88 3.97 4.12 Portfolio turnover 3 13 11 11 13 14 Net assets at end of period (000 Omitted) $14,684 $16,885 $19,637 $23,564 $25,470 $26,970 - -------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) VIRGINIA MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED -------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS C (UNAUDITED) Net asset value, beginning of period $11.41 $11.52 $11.72 $11.61 $11.13 $11.36 - -------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.21 $0.43 $0.46 $0.45 $0.45 $0.47 Net realized and unrealized gain (loss) on investments 0.08 (0.11) (0.20) 0.11 0.48 (0.23) - -------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.29 $0.32 $0.26 $0.56 $0.93 $0.24 - -------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.21) $(0.43) $(0.46) $(0.45) $(0.45) $(0.47) - -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $11.49 $11.41 $11.52 $11.72 $11.61 $11.13 - -------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.56(n) 2.78 2.25 4.93 8.49 2.10 - -------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.78(a) 1.80 1.75 1.77 1.78 1.77 Expenses after expense reductions (f) 1.53(a) 1.55 1.50 1.57 1.58 1.57 Net investment income 3.74(a) 3.72 3.98 3.88 3.97 4.10 Portfolio turnover 3 13 11 11 13 14 Net assets at end of period (000 Omitted) $13,000 $12,995 $12,208 $13,338 $12,758 $10,619 - -------------------------------------------------------------------------------------------------------------------------------- Any redemption fees charged by the fund during the 2005 fiscal year resulted in a per share impact of less than $0.01. (a) Annualized. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (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 Financial Highlights - continued MFS(R) WEST VIRGINIA MUNICIPAL BOND FUND The financial highlights table is intended to help you understand the fund's financial performance for the semiannual period and the past 5 fiscal years. Certain information reflects financial results for a single fund share. The total returns in the table represent the rate by which an investor would have earned (or lost) on an investment in the fund share class (assuming reinvestment of all distributions) held for the entire period. SIX MONTHS YEARS ENDED 3/31 ENDED ---------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS A (UNAUDITED) Net asset value, beginning of period $11.47 $11.58 $11.82 $11.77 $11.32 $11.45 - -------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.24 $0.48 $0.51 $0.51 $0.55 $0.57 Net realized and unrealized gain (loss) on investments 0.10 (0.11) (0.25) 0.05 0.46 (0.14) - -------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.34 $0.37 $0.26 $0.56 $1.01 $0.43 - -------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.24) $(0.48) $(0.50) $(0.51) $(0.56) $(0.56) - -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $11.57 $11.47 $11.58 $11.82 $11.77 $11.32 - -------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.97(n) 3.21 2.28 4.84 9.04 3.79 - -------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.16(a) 1.17 1.14 1.13 1.16 1.13 Expenses after expense reductions (f) 0.91(a) 0.92 0.89 0.93 0.96 0.93 Net investment income 4.21(a) 4.16 4.35 4.33 4.71 4.97 Portfolio turnover 2 7 14 17 13 2 Net assets at end of period (000 Omitted) $130,920 $134,416 $134,459 $140,599 $139,564 $121,860 - -------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued MFS(R) WEST VIRGINIA MUNICIPAL BOND FUND - CONTINUED SIX MONTHS YEARS ENDED 3/31 ENDED -------------------------------------------------------------- 9/30/06 2006 2005 2004 2003 2002 CLASS B (UNAUDITED) Net asset value, beginning of period $11.46 $11.58 $11.82 $11.76 $11.31 $11.44 - -------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - -------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.20 $0.41 $0.43 $0.43 $0.47 $0.50 Net realized and unrealized gain (loss) on investments 0.11 (0.13) (0.24) 0.06 0.46 (0.15) - -------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.31 $0.28 $0.19 $0.49 $0.93 $0.35 - -------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - -------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.20) $(0.40) $(0.43) $(0.43) $(0.48) $(0.48) - -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $11.57 $11.46 $11.58 $11.82 $11.76 $11.31 - -------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.72(n) 2.45 1.62 4.25 8.34 3.12 - -------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - -------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.81(a) 1.82 1.79 1.78 1.81 1.79 Expenses after expense reductions (f) 1.56(a) 1.57 1.54 1.58 1.61 1.59 Net investment income 3.57(a) 3.51 3.71 3.68 4.06 4.31 Portfolio turnover 2 7 14 17 13 2 Net assets at end of period (000 Omitted) $11,547 $12,388 $14,334 $17,744 $19,443 $16,248 - -------------------------------------------------------------------------------------------------------------------------------- Any redemption fees charged by the fund during the 2005 fiscal year resulted in a per share impact of less than $0.01. (a) Annualized. (d) Per share data are based on average shares outstanding. (f) Ratios do not reflect reductions from fees paid indirectly. (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 (unaudited) (1) BUSINESS AND ORGANIZATION MFS Mississippi Municipal Bond Fund (Mississippi Fund), MFS New York Municipal Bond Fund (New York Fund), MFS North Carolina Municipal Bond Fund (North Carolina Fund), MFS Pennsylvania Municipal Bond Fund (Pennsylvania Fund), MFS South Carolina Municipal Bond Fund (South Carolina Fund), MFS Tennessee Municipal Bond Fund (Tennessee Fund), MFS Virginia Municipal Bond Fund (Virginia Fund), and MFS West Virginia Municipal Bond Fund (West Virginia Fund) are each a series of MFS Municipal Series Trust (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. Because each fund invests primarily in the securities of a single state and its political subdivisions, each fund is vulnerable to the effects of changes in the legal and economic environment of the particular state. Municipal securities backed by current or anticipated revenues from a specific project or specific assets can be negatively affected by the discontinuance of the taxation supporting the projects or assets or the inability to collect revenues for the project or from the assets. If the Internal Revenue Service determines an issuer of a municipal security has not complied with applicable tax requirements, the security could decline in value, interest from the security could become taxable and the fund may be required to issue Forms 1099-DIV. INVESTMENT VALUATIONS - Debt instruments (other than short-term instruments), including restricted debt instruments, are generally valued at an evaluated or composite bid as reported by an independent pricing service. Values of debt instruments 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. Short-term instruments with a maturity at issuance of 60 days or less may be valued at amortized cost, which approximates market value. Swaps are generally valued at a broker-dealer bid quotation. 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 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 each fund's valuation policies and procedures, market quotations are not considered to be readily available for many types of debt instruments. These investments are generally valued at fair value based on information from independent pricing services. 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 each 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 each 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 each fund, and believes the impact will be limited to expanded disclosures resulting from the adoption of this Statement on each fund's financial statements. DERIVATIVE RISK - Each 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 funds use 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 swap agreements. SWAP AGREEMENTS - Each fund may enter into swap agreements. A swap is an exchange of cash payments between the fund and another party. Net cash payments are exchanged at specified intervals and are recorded as a realized gain or loss in the Statement of Operations. The value of the swap is adjusted daily and the change in value, including accruals of periodic amounts of interest to be paid or received, is recorded as unrealized appreciation or depreciation in the Statement of Operations. A liquidation payment received or made upon early termination is recorded as a realized gain or loss in the Statement of Operations. Collateral, in the form of cash or securities, may be required to be held in segregated accounts with the fund's custodian in connection with these agreements. Risk of loss may exceed amounts recognized on the Statement of Assets and Liabilities. These risks include the possible lack of a liquid market, failure of the counterparty to perform under the terms of the agreements, and unfavorable market movement of the underlying instrument. All swap agreements entered into by the fund with the same counterparty are generally governed by a single master agreement, which provides for the netting of all amounts owed by the parties under the agreement upon the occurrence of an event of default, thereby reducing the credit risk to which such party is exposed. INTEREST RATE SWAP AGREEMENTS - Interest rate swap agreements involve the periodic exchange of cash flows, such as the exchange of fixed rate interest payments for floating rate interest payments based on a notional principal amount. The interest rates may be based on a specific financial index or the exchange of two distinct floating rate payments. Each fund may enter into an interest rate swap in order to manage its exposure to interest fluctuations. INDEMNIFICATIONS - Under each 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, each fund enters into agreements with service providers that may contain indemnification clauses. Each 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 premium and original issue discount is amortized or accreted for tax reporting purposes as required by federal income tax regulations. Each fund may receive proceeds from litigation settlements involving its portfolio holdings. Any proceeds received are reflected in realized gain/loss in the Statement of Operations, or in unrealized gain/loss if the security is still held by the fund. Legal fees and other related expenses incurred to preserve and protect the value of a security owned are added to the cost of the security; other legal fees are expensed. Capital infusions made directly to the security issuer, which are generally non-recurring, incurred to protect or enhance the value of high-yield debt securities, are reported as additions to the cost basis of the security. Costs that are incurred to negotiate the terms or conditions of capital infusions or that are expected to result in a plan of reorganization are reported as realized losses. Ongoing costs incurred to protect or enhance an investment, or costs incurred to pursue other claims or legal actions, are expensed. FEES PAID INDIRECTLY - Each fund's custody fee is reduced according to an arrangement that measures the value of cash deposited with the custodian by each fund. This amount, for the six months ended September 30, 2006, is shown as a reduction of total expenses on the Statement of Operations. TAX MATTERS AND DISTRIBUTIONS - Each 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 and tax-exempt income, including realized capital gains. Accordingly, no provision for federal income tax is required in the 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 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 amortization and accretion of debt securities, wash sale loss deferrals, and treating a portion of the proceeds from redemptions as a distribution for tax purposes. The tax character of distributions made during the current period will be determined at fiscal year end. The tax character of distributions declared to shareholders is as follows: NORTH MISSISSIPPI NEW YORK CAROLINA PENNSYLVANIA YEAR ENDED 3/31/06 FUND FUND FUND FUND Ordinary income (including any short-term capital gains) $-- $-- $398,095 $-- Tax-exempt income 3,825,714 7,075,051 14,172,501 4,383,989 Long-term capital gain -- 800,147 930,835 -- - ------------------------------------------------------------------------------------------------ Total distributions $3,825,714 $7,875,198 $15,501,431 $4,383,989 YEAR ENDED 3/31/05 Ordinary income (including any short-term capital gains) $-- $-- $338,971 $-- Tax-exempt income 4,288,716 7,823,631 15,104,858 4,481,113 Long-term capital gain -- -- 1,184,575 -- - ------------------------------------------------------------------------------------------------ Total distributions $4,288,716 $7,823,631 $16,628,404 $4,481,113 SOUTH WEST CAROLINA TENNESSEE VIRGINIA VIRGINIA YEAR ENDED 3/31/06 FUND FUND FUND FUND Ordinary income (including any short-term capital gains) $-- $178,774 $-- $-- Tax-exempt income 6,716,613 4,915,444 13,450,458 6,029,196 Long-term capital gain -- 272,746 -- -- - ------------------------------------------------------------------------------------------------ Total distributions $6,716,613 $5,366,964 $13,450,458 $6,029,196 YEAR ENDED 3/31/05 Ordinary income (including any short-term capital gains) $36,036 $194,393 $-- $35,541 Tax-exempt income 7,152,028 5,259,087 14,692,962 6,402,713 Long-term capital gain -- 713,987 -- -- - ------------------------------------------------------------------------------------------------ Total distributions $7,188,064 $6,167,467 $14,692,962 $6,438,254 The federal tax cost and the tax basis components of distributable earnings were as follows: MISSISSIPPI NEW YORK CAROLINA PENNSYLVANIA AS OF 9/30/06 FUND FUND FUND FUND Cost of investments $79,477,890 $149,902,862 $308,686,177 $102,824,602 - ------------------------------------------------------------------------------------------------ Gross appreciation 4,121,653 11,285,284 20,701,220 4,994,274 Gross depreciation (53,985) (34,388) (7,302) (27,897) - ------------------------------------------------------------------------------------------------ Net unrealized appreciation (depreciation) $4,067,668 $11,250,896 $20,693,918 $4,966,377 AS OF 3/31/06 Undistributed ordinary income $-- $42,588 $-- $-- Undistributed tax-exempt income 198,486 76,149 586,480 162,694 Undistributed long-term capital gain -- 528,821 -- -- Capital loss carryforwards (317,125) -- -- (190,380) Post-October capital loss deferral (21,979) -- -- -- Other temporary differences (283,657) (466,763) (964,966) (262,134) Net unrealized appreciation (depreciation) 3,238,954 9,835,675 18,529,096 3,951,577 SOUTH WEST CAROLINA TENNESSEE VIRGINIA VIRGINIA AS OF 9/30/06 FUND FUND FUND FUND Cost of investments $143,829,132 $104,964,251 $279,013,417 $132,009,747 - ------------------------------------------------------------------------------------------------ Gross appreciation 9,682,308 6,021,601 15,160,041 8,023,295 Gross depreciation (3,342) (17,310) (17,142) (21,137) - ------------------------------------------------------------------------------------------------ Net unrealized appreciation (depreciation) $9,678,966 $6,004,291 $15,142,899 $8,002,158 AS OF 3/31/06 Undistributed ordinary income $-- $-- $-- $-- Undistributed tax-exempt income 445,131 154,994 276,734 228,967 Undistributed long-term capital gain -- -- -- -- Capital loss carryforwards (615,121) -- -- (221,741) Post-October capital loss deferral -- -- (69,610) -- Other temporary differences (390,175) (562,666) (1,116,101) (415,320) Net unrealized appreciation (depreciation) 8,536,487 5,756,140 13,984,109 6,965,886 The aggregate cost above includes prior fiscal year end tax adjustments. As of March 31, 2006, certain funds had capital loss carryforwards available to offset future realized gains. Such losses expire as follows: MISSISSIPPI PENNSYLVANIA SOUTH CAROLINA WEST VIRGINIA EXPIRATION DATE FUND FUND FUND FUND 3/31/09 $-- $-- $(615,121) $(75,960) 3/31/10 -- -- -- (83,347) 3/31/12 -- (190,380) -- -- 3/31/13 (287,448) -- -- (62,434) 3/31/14 (29,677) -- -- -- - ----------------------------------------------------------------------------------------------------------------- Total $(317,125) $(190,380) $(615,121) $(221,741) 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. 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 is evaluating the application of the Interpretation to each fund, and has not at this time determined the impact, if any, resulting from the adoption of this Interpretation on each fund's financial statements. MULTIPLE CLASSES OF SHARES OF BENEFICIAL INTEREST - Each 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 shares will convert to Class A shares approximately eight years after purchase. (3) TRANSACTIONS WITH AFFILIATES INVESTMENT ADVISER - The trust has an investment advisory agreement with Massachusetts Financial Services Company (MFS) to provide overall investment management and related administrative services and facilities to each fund. The management fee is computed daily and paid monthly at an annual rate of 0.55% of each 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 0.30% of each fund's average daily net assets for the period March 1, 2004 through February 28, 2009. For the six months ended September 30, 2006, this waiver amounted to the following for each fund and is reflected as a reduction of total expenses in the Statement of Operations. MISSISSIPPI NEW YORK NORTH CAROLINA PENNSYLVANIA SOUTH CAROLINA TENNESSEE VIRGINIA WEST VIRGINIA FUND FUND FUND FUND FUND FUND FUND FUND $106,330 $204,841 $413,244 $136,742 $194,335 $143,529 $377,406 $182,402 The management fee incurred for the six months ended September 30, 2006 was equivalent to an annual effective rate of 0.30% of each fund's average daily net assets. For the Pennsylvania Fund, the investment adviser has agreed in writing to pay a portion of the fund's operating expenses, exclusive of management, distribution and service, and certain other fees and expenses, such that operating expenses do not exceed 0.20% annually of the fund's average daily net assets. This written agreement will continue through July 31, 2007 unless changed or rescinded by the fund's Board of Trustees. For the six months ended September 30, 2006, this reduction amounted to $61,216 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 the following amounts for the six months ended September 30, 2006, as its portion of the initial sales charge on sales of Class A shares of the funds. MISSISSIPPI NEW YORK NORTH CAROLINA PENNSYLVANIA SOUTH CAROLINA TENNESSEE VIRGINIA WEST VIRGINIA FUND FUND FUND FUND FUND FUND FUND FUND $15,321 $10,009 $25,759 $13,594 $15,714 $5,904 $18,575 $16,480 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. Each 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: CLASS A -------------------------------------------------------------------------------------------- TOTAL ANNUAL DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE AND SERVICE FEE RATE FEE RATE PLAN(d) RATE(e) FEE Mississippi Fund 0.10% 0.25% 0.35% -- $-- New York Fund 0.10% 0.25% 0.35% 0.25% 148,253 North Carolina Fund 0.10% 0.25% 0.35% 0.35% 467,708 Pennsylvania Fund 0.10% 0.25% 0.35% 0.10% 35,909 South Carolina Fund 0.10% 0.25% 0.35% 0.35% 228,769 Tennessee Fund 0.10% 0.25% 0.35% 0.35% 172,410 Virginia Fund 0.10% 0.25% 0.35% 0.35% 478,259 West Virginia Fund 0.10% 0.25% 0.35% 0.35% 234,385 CLASS B -------------------------------------------------------------------------------------------- TOTAL ANNUAL DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE AND SERVICE FEE RATE FEE RATE PLAN(d) RATE(e) FEE Mississippi Fund 0.75% 0.25% 1.00% 0.76% $38,700 New York Fund 0.75% 0.25% 1.00% 1.00% 145,053 North Carolina Fund 0.75% 0.25% 1.00% 1.00% 156,335 Pennsylvania Fund 0.75% 0.25% 1.00% 0.86% 161,841 South Carolina Fund 0.75% 0.25% 1.00% 1.00% 123,717 Tennessee Fund 0.75% 0.25% 1.00% 1.00% 81,515 Virginia Fund 0.75% 0.25% 1.00% 1.00% 78,252 West Virginia Fund 0.75% 0.25% 1.00% 1.00% 59,937 CLASS C -------------------------------------------------------------------------------------------- TOTAL ANNUAL DISTRIBUTION DISTRIBUTION SERVICE DISTRIBUTION EFFECTIVE AND SERVICE FEE RATE FEE RATE PLAN(d) RATE(e) FEE New York Fund 0.75% 0.25% 1.00% 1.00% $81,300 North Carolina Fund 0.75% 0.25% 1.00% 1.00% 160,333 Virginia Fund 0.75% 0.25% 1.00% 1.00% 64,921 NORTH SOUTH WEST MISSISSIPPI NEW YORK CAROLINA PENNSYLVANIA CAROLINA TENNESSEE VIRGINIA VIRGINIA FUND FUND FUND FUND FUND FUND FUND FUND Total Distribution and Service Fees $38,700 $374,606 $784,376 $197,750 $352,486 $253,925 $621,432 $294,322 (d) In accordance with the distribution plan for certain classes, each 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 six months ended September 30, 2006 based on each class' average daily net assets. Payment of the Mississippi Fund's 0.25% annual Class A service fee and 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. For one year from the date of sale of Class B shares of the Mississippi Fund, assets attributable to such Class B shares are subject to the 0.25% annual Class B service fee. On assets attributable to all other Class B shares of the Mississippi Fund, the service fee is not currently in effect, but may be implemented on such date as the fund's Board of Trustees may determine. Payment of the New York Fund's 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. Payment of the Pennsylvania Fund's 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 A service fee is currently being paid by the Pennsylvania Fund. Payment of the remaining 0.15% of the Pennsylvania Fund's 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. For one year from the date of sale of Class B shares of the Pennsylvania Fund, assets attributable to such Class B shares are subject to the 0.25% annual Class B service fee. On assets attributable to all other Class B shares of the Pennsylvania Fund, 0.10% of the Class B service fee is currently in effect and the remaining portion of the Class B service fee is not in effect but may be implemented on such date as the fund's Board of Trustees may determine. 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 six months ended September 30, 2006, were as follows: NORTH SOUTH WEST MISSISSIPPI NEW YORK CAROLINA PENNSYLVANIA CAROLINA TENNESSEE VIRGINIA VIRGINIA CDSC IMPOSED FUND FUND FUND FUND FUND FUND FUND FUND Class A $-- $975 $-- $-- $27 $-- $-- $-- Class B 6,900 30,463 19,406 39,233 21,147 10,040 21,140 10,864 Class C N/A 113 1,122 N/A N/A N/A 21 N/A SHAREHOLDER SERVICING AGENT - MFS Service Center, Inc. (MFSC), a wholly-owned subsidiary of MFS, receives a fee from the funds' for its services as shareholder servicing agent calculated as a percentage of the average net assets of each fund as determined periodically under the supervision of the fund's Board of Trustees. For the six months ended September 30, 2006, each fund paid the following fees, which equated to the following annual percentage of each fund's average daily net assets for shareholder services: NORTH SOUTH WEST MISSISSIPPI NEW YORK CAROLINA PENNSYLVANIA CAROLINA TENNESSEE VIRGINIA VIRGINIA FUND FUND FUND FUND FUND FUND FUND FUND Expenses paid $41,001 $78,987 $159,347 $52,728 $74,936 $55,345 $145,528 $70,334 Percentage of average daily net assets 0.0964% 0.0964% 0.0964% 0.0964% 0.0964% 0.0964% 0.0964% 0.0964% MFSC also receives payment from each fund for out-of-pocket and sub-accounting expenses paid by MFSC on behalf of the funds. For the six months ended September 30, 2006, these costs amounted to following. Each fund may also pay shareholder servicing related costs to non-related parties. MISSISSIPPI NEW YORK NORTH CAROLINA PENNSYLVANIA SOUTH CAROLINA TENNESSEE VIRGINIA WEST VIRGINIA FUND FUND FUND FUND FUND FUND FUND FUND $2,372 $4,683 $9,396 $8,012 $3,887 $4,748 $10,229 $5,268 ADMINISTRATOR - MFS provides certain financial, legal, shareholder communications, compliance, and other administrative services to certain funds. Under an administrative services agreement, the funds may partially reimburse MFS the costs incurred to provide these services. Each fund is charged a fixed amount plus a fee based on calendar year average net assets. Each fund's annual fixed amount is $17,500. The administrative services fee incurred for the six months ended September 30, 2006 was equivalent to the following annual effective rates of each fund's average daily net assets: NORTH SOUTH WEST MISSISSIPPI NEW YORK CAROLINA PENNSYLVANIA CAROLINA TENNESSEE VIRGINIA VIRGINIA FUND FUND FUND FUND FUND FUND FUND FUND Percentage of average daily net assets 0.0282% 0.0236% 0.0210% 0.0261% 0.0238% 0.0257% 0.0212% 0.0242% TRUSTEES' AND OFFICERS' COMPENSATION - Each fund pays compensation to Independent Trustees in the form of a retainer, attendance fees, and additional compensation to Board and Committee chairpersons. The funds do not pay compensation directly to Trustees or officers of each 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. Each fund has an unfunded, defined benefit plan for certain retired Independent Trustees which resulted in the following pension expense for the funds. These amounts are included in Independent trustees' compensation for the six months ended September 30, 2006. MISSISSIPPI NEW YORK NORTH CAROLINA PENNSYLVANIA SOUTH CAROLINA TENNESSEE VIRGINIA WEST VIRGINIA FUND FUND FUND FUND FUND FUND FUND FUND $346 $393 $805 $351 $791 $366 $802 $789 The deferred liability for retirement benefits payable to retired Trustees amounted to the following for each fund at September 30, 2006, and is included in payable for independent trustees' compensation. MISSISSIPPI NEW YORK NORTH CAROLINA PENNSYLVANIA SOUTH CAROLINA TENNESSEE VIRGINIA WEST VIRGINIA FUND FUND FUND FUND FUND FUND FUND FUND $9,400 $12,104 $14,700 $9,288 $14,658 $12,085 $14,723 $14,655 OTHER - These funds 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 six months ended September 30, 2006, the fees paid to Tarantino LLC amounted to the following: MISSISSIPPI NEW YORK NORTH CAROLINA PENNSYLVANIA SOUTH CAROLINA TENNESSEE VIRGINIA WEST VIRGINIA FUND FUND FUND FUND FUND FUND FUND FUND $218 $420 $848 $280 $398 $294 $774 $374 MFS has agreed to reimburse the funds for a portion of the payments made by the funds to Tarantino LLC in the following amounts, 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. MISSISSIPPI NEW YORK NORTH CAROLINA PENNSYLVANIA SOUTH CAROLINA TENNESSEE VIRGINIA WEST VIRGINIA FUND FUND FUND FUND FUND FUND FUND FUND $218 $420 $847 $280 $398 $294 $774 $374 (4) PORTFOLIO SECURITIES Purchases and sales of investments, other than U.S. government securities, purchased option transactions, and short-term obligations, were as follows: NORTH SOUTH WEST MISSISSIPPI NEW YORK CAROLINA PENNSYLVANIA CAROLINA TENNESSEE VIRGINIA VIRGINIA FUND FUND FUND FUND FUND FUND FUND FUND Purchases $7,591,614 $8,384,893 $11,167,032 $3,573,680 $6,836,356 $6,106,165 $8,061,056 $2,537,622 - ----------------------------------------------------------------------------------------------------------------------------- Sales $9,432,114 $12,740,254 $15,167,019 $7,341,301 $9,565,265 $10,654,894 $18,048,530 $8,455,703 - ----------------------------------------------------------------------------------------------------------------------------- (5) SHARES OF BENEFICIAL INTEREST The Trust's Declaration permits the Trustees to issue an unlimited number of full and fractional shares of beneficial interest. Transactions in each fund's shares were as follows: MISSISSIPPI FUND ------------------------------------------------------ SIX MONTHS ENDED YEAR ENDED 9/30/06 3/31/06 ---------------------- ----------------------- SHARES AMOUNT SHARES AMOUNT ------- ---------- ------- ---------- Shares sold Class A 281,142 $2,724,451 866,381 $8,546,452 Class B 20,407 198,403 24,252 239,436 Class C -- -- -- -- - ------------------------------------------------------------------------------------------------- 301,549 $2,922,854 890,633 $8,785,888 Shares issued to shareholders in reinvestment of distributions Class A 96,252 $935,502 185,126 $1,824,861 Class B 9,908 96,378 21,153 208,716 Class C -- -- -- -- - ------------------------------------------------------------------------------------------------- 106,160 $1,031,880 206,279 $2,033,577 Shares reacquired Class A (563,700) $(5,471,994) (1,380,138) $(13,645,231) Class B (76,588) (744,359) (144,591) (1,426,794) Class C -- -- -- -- - ------------------------------------------------------------------------------------------------- (640,288) $(6,216,353) (1,524,729) $(15,072,025) Net change Class A (186,306) $(1,812,041) (328,631) $(3,273,918) Class B (46,273) (449,578) (99,186) (978,642) Class C -- -- -- -- - ------------------------------------------------------------------------------------------------- (232,579) $(2,261,619) (427,817) $(4,252,560) NEW YORK FUND ------------------------------------------------------ SIX MONTHS ENDED YEAR ENDED 9/30/06 3/31/06 ---------------------- ---------------------- SHARES AMOUNT SHARES AMOUNT ------- ---------- ------- --------- Shares sold Class A 715,625 $7,915,015 653,127 $7,390,698 Class B 44,081 486,768 138,910 1,569,384 Class C 29,569 327,755 134,687 1,526,215 - ------------------------------------------------------------------------------------------------ 789,275 $8,729,538 926,724 $10,486,297 Shares issued to shareholders in reinvestment of distributions Class A 137,902 $1,533,961 324,484 $3,670,111 Class B 29,578 327,745 74,060 834,700 Class C 15,927 176,771 39,815 449,550 - ------------------------------------------------------------------------------------------------ 183,407 $2,038,477 438,359 $4,954,361 Shares reacquired Class A (839,413) $(9,326,920) (1,469,796) $(16,663,402) Class B (305,966) (3,391,695) (640,793) (7,238,245) Class C (228,469) (2,537,494) (387,465) (4,383,903) - ------------------------------------------------------------------------------------------------ 1,373,848) $(15,256,109) (2,498,054) $(28,285,550) Net change Class A 14,114 $122,056 (492,185) $(5,602,593) Class B (232,307) (2,577,182) (427,823) (4,834,161) Class C (182,973) (2,032,968) (212,963) (2,408,138) - ------------------------------------------------------------------------------------------------ (401,166) $(4,488,094) (1,132,971) $(12,844,892) NORTH CAROLINA FUND ------------------------------------------------------ SIX MONTHS ENDED YEAR ENDED 9/30/06 3/31/06 ---------------------- ----------------------- SHARES AMOUNT SHARES AMOUNT ------- ---------- ------- ---------- Shares sold Class A 997,329 $11,810,832 1,314,537 $15,818,825 Class B 42,955 508,177 132,671 1,590,635 Class C 138,266 1,630,450 271,600 3,270,481 - ------------------------------------------------------------------------------------------------ 1,178,550 $13,949,459 1,718,808 $20,679,941 Shares issued to shareholders in reinvestment of distributions Class A 312,240 $3,692,942 698,501 $8,393,304 Class B 26,728 315,597 69,832 838,029 Class C 36,075 426,389 79,561 954,980 - ------------------------------------------------------------------------------------------------ 375,043 $4,434,928 847,894 $10,186,313 Shares reacquired Class A (1,401,362) $(16,563,402) (2,554,557) $(30,727,514) Class B (254,745) (3,003,316) (807,609) (9,719,958) Class C (168,513) (1,989,416) (375,266) (4,513,810) - ------------------------------------------------------------------------------------------------ (1,824,620) $(21,556,134) (3,737,432) $(44,961,282) Net change Class A (91,793) $(1,059,628) (541,519) $(6,515,385) Class B (185,062) (2,179,542) (605,106) (7,291,294) Class C 5,828 67,423 (24,105) (288,349) - ------------------------------------------------------------------------------------------------ (271,027) $(3,171,747) (1,170,730) $(14,095,028) PENNSYLVANIA FUND ------------------------------------------------------ SIX MONTHS ENDED YEAR ENDED 9/30/06 3/31/06 ---------------------- ---------------------- SHARES AMOUNT SHARES AMOUNT ------- ---------- ------- --------- Shares sold Class A 477,884 $4,837,893 1,258,762 $12,897,989 Class B 73,185 744,044 275,025 2,820,655 Class C -- -- -- -- - ------------------------------------------------------------------------------------------------ 551,069 $5,581,937 1,533,787 $15,718,644 Shares issued to shareholders in reinvestment of distributions Class A 91,045 $922,780 185,707 $1,901,237 Class B 39,928 405,814 87,173 894,888 Class C -- -- -- -- - ------------------------------------------------------------------------------------------------ 130,973 $1,328,594 272,880 $2,796,125 Shares reacquired Class A (629,373) $(6,362,173) (990,703) $(10,143,698) Class B (310,624) (3,149,284) (631,297) (6,480,350) Class C -- -- -- -- - ------------------------------------------------------------------------------------------------ (939,997) $(9,511,457) (1,622,000) $(16,624,048) Net change Class A (60,444) $(601,500) 453,766 $4,655,528 Class B (197,511) (1,999,426) (269,099) (2,764,807) Class C -- -- -- -- - ------------------------------------------------------------------------------------------------ (257,955) $(2,600,926) 184,667 $1,890,721 SOUTH CAROLINA FUND ---------------------------------------------------- SIX MONTHS ENDED YEAR ENDED 9/30/06 3/31/06 ------------------------- ------------------------- SHARES AMOUNT SHARES AMOUNT Shares sold Class A 473,037 $5,778,509 1,132,204 $14,046,582 Class B 47,692 582,684 85,307 1,056,145 - ------------------------------------------------------------------------------------------------ 520,729 $6,361,193 1,217,511 $15,102,727 Shares issued to shareholders in reinvestment of distributions Class A 154,968 $1,894,212 307,593 $3,815,307 Class B 23,918 292,092 54,579 676,705 - ------------------------------------------------------------------------------------------------ 178,886 $2,186,304 362,172 $4,492,012 Shares reacquired Class A (651,221) $(7,961,884) (1,274,850) $(15,823,297) Class B (316,288) (3,858,455) (510,226) (6,331,745) - ------------------------------------------------------------------------------------------------ (967,509) $(11,820,339) (1,785,076) $(22,155,042) Net change Class A (23,216) $(289,163) 164,947 $2,038,592 Class B (244,678) (2,983,679) (370,340) (4,598,895) - ------------------------------------------------------------------------------------------------ (267,894) $(3,272,842) (205,393) $(2,560,303) TENNESSEE FUND --------------------------------------------------------- SIX MONTHS ENDED YEAR ENDED 9/30/06 3/31/06 ------------------------- ---------------------------- SHARES AMOUNT SHARES AMOUNT Shares sold Class A 635,337 $6,697,438 493,536 $5,305,262 Class B 9,240 97,420 79,543 857,100 - ----------------------------------------------------------------------------------------------- 644,577 $6,794,858 573,079 $6,162,362 Shares issued to shareholders in reinvestment of distributions Class A 102,937 $1,084,791 210,399 $2,255,583 Class B 16,330 171,919 40,963 439,012 - ----------------------------------------------------------------------------------------------- 119,267 $1,256,710 251,362 $2,694,595 Shares reacquired Class A (797,875) $(8,394,998) (1,135,271) $(12,170,537) Class B (268,881) (2,833,296) (422,094) (4,536,883) - ----------------------------------------------------------------------------------------------- (1,066,756) $(11,228,294) (1,557,365) $(16,707,420) Net change Class A (59,601) $(612,769) (431,336) $(4,609,692) Class B (243,311) (2,563,957) (301,588) (3,240,771) - ----------------------------------------------------------------------------------------------- (302,912) $(3,176,726) (732,924) $(7,850,463) VIRGINIA FUND ---------------------------------------------------- SIX MONTHS ENDED YEAR ENDED 9/30/06 3/31/06 ------------------------- ------------------------- SHARES AMOUNT SHARES AMOUNT Shares sold Class A 692,937 $7,897,092 1,481,053 $17,100,137 Class B 27,782 316,030 138,191 1,599,934 Class C 88,470 1,006,755 152,773 1,767,443 - ------------------------------------------------------------------------------------------------- 809,189 $9,219,877 1,772,017 $20,467,514 Shares issued to shareholders in reinvestment of distributions Class A 303,729 $3,459,241 610,984 $7,063,585 Class B 14,629 166,440 33,680 389,119 Class C 13,733 156,357 26,043 300,916 - ----------------------------------------------------------------------------------------------- 332,091 $3,782,038 670,707 $7,753,620 Shares reacquired Class A (1,490,964) $(16,954,757) (2,517,056) $(29,092,777) Class B (244,113) (2,774,296) (396,940) (4,587,647) Class C (109,521) (1,244,125) (99,697) (1,152,730) - ----------------------------------------------------------------------------------------------- (1,844,598) $(20,973,178) (3,013,693) $(34,833,154) Net change Class A (494,298) $(5,598,424) (425,019) $(4,929,055) Class B (201,702) (2,291,826) (225,069) (2,598,594) Class C (7,318) (81,013) 79,119 915,629 - ----------------------------------------------------------------------------------------------- (703,318) $(7,971,263) (570,969) $(6,612,020) WEST VIRGINIA FUND ------------------------------------------------------- SIX MONTHS ENDED YEAR ENDED 9/30/06 3/31/06 ------------------------- ----------------------- SHARES AMOUNT SHARES AMOUNT Shares sold Class A 300,134 $3,430,420 767,854 $8,913,846 Class B 18,318 210,344 78,236 910,206 Class C -- -- -- -- - ----------------------------------------------------------------------------------------------- 318,452 $3,640,764 846,090 $9,824,052 Shares issued to shareholders in reinvestment of distributions Class A 163,720 $1,873,992 325,732 $3,779,345 Class B 10,480 119,914 23,338 270,745 Class C -- -- -- -- - ----------------------------------------------------------------------------------------------- 174,200 $1,993,906 349,070 $4,050,090 Shares reacquired Class A (870,047) $(9,980,288) (981,278) $(11,390,785) Class B (111,099) (1,271,299) (258,946) (3,004,395) Class C -- -- -- -- - ----------------------------------------------------------------------------------------------- (981,146) $(11,251,587) (1,240,224) $(14,395,180) Net change Class A (406,193) $(4,675,876) 112,308 $1,302,406 Class B (82,301) (941,041) (157,372) (1,823,444) Class C -- -- -- -- - ----------------------------------------------------------------------------------------------- (488,494) $(5,616,917) (45,064) $(521,038) (6) LINE OF CREDIT Each fund and other affiliated funds participate in a $1 billion unsecured committed line of credit provided by a syndication of banks under a credit agreement. In addition, these funds and other affiliated funds 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 0.35%. 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. The interest expense incurred and commitment fee allocated to each fund for the six months ended September 30, 2006 is included in miscellaneous expense on the Statement of Operations as follows: NORTH SOUTH WEST MISSISSIPPI NEW YORK CAROLINA PENNSYLVANIA CAROLINA TENNESSEE VIRGINIA VIRGINIA FUND FUND FUND FUND FUND FUND FUND FUND Commitment Fee $259 $507 $1,006 $335 $475 $352 $924 $447 Interest Expense -- -- -- -- -- -- -- -- (7) CONCENTRATION OF CREDIT RISK Since each fund invests a substantial portion of its assets in issuers located in one state, it will be more susceptible to factors adversely affecting issuers of that state than would be a comparable tax-exempt mutual fund that invests nationally. The risk associated with such factors is mitigated by the fact that a percentage of securities in a portfolio of investments are backed by letters of credit or bond insurance of various financial institutions and financial guaranty assurance agencies. At September 30, 2006, the percentage of holdings that carried such enhancements were as follows: NORTH SOUTH WEST MISSISSIPPI NEW YORK CAROLINA PENNSYLVANIA CAROLINA TENNESSEE VIRGINIA VIRGINIA FUND FUND FUND FUND FUND FUND FUND FUND Total: 79.41% 40.14% 50.44% 67.28% 72.88% 55.91% 41.04% 79.89% For each fund, the greatest exposure to any one institution or agency did not exceed the following percentages of total investments as of September 30, 2006: NORTH SOUTH WEST MISSISSIPPI NEW YORK CAROLINA PENNSYLVANIA CAROLINA TENNESSEE VIRGINIA VIRGINIA FUND FUND FUND FUND FUND FUND FUND FUND Single Insurer: 25.50% 14.48% 18.15% 18.57% 24.66% 21.70% 15.06% 31.52% 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 each Fund's investment advisory agreement with MFS. The Trustees consider matters bearing on the Funds and their 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, 2006 ("contract review meetings") for the specific purpose of considering whether to approve the continuation of the investment advisory agreements for the Funds and the other investment companies that the Board oversees (the "MFS Funds"). The independent Trustees were assisted in their evaluation of the Funds' investment advisory agreements 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 agreements, 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 each 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 agreements and other arrangements with the Funds. In connection with their contract review meetings, the Trustees received and relied upon materials which included, among other items: (i) information provided by Lipper Inc. on the investment performance of the Funds for various time periods ended December 31, 2005 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 Funds' 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 Funds, (v) information regarding MFS' financial results and financial condition, including MFS' and certain of its affiliates' estimated profitability from services performed for the Funds 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 Funds and 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 agreements with the Funds 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 Funds and other MFS Funds are the result of years of review and discussion between the independent Trustees and MFS, that certain aspects of such arrangements may receive greater scrutiny in some years than others, and that the Trustees' conclusions may be based, in part, on their consideration of these same arrangements during the course of the year and in prior years. Based on information provided by Lipper Inc. and MFS, the Trustees reviewed each 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 each 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, 2005, which the Trustees believed was a long enough period to reflect differing market conditions. 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 Funds' performance. After reviewing these and related factors, the Trustees concluded, within the context of their overall conclusions regarding the investment advisory agreements, that they were satisfied with MFS' responses and efforts relating to investment performance. In assessing the reasonableness of each Fund's advisory fee, the Trustees considered, among other information, each Fund's advisory fee and the total expense ratio of each Fund's Class A shares as a percentage of average net assets and the advisory fee and total expense ratios of peer groups of funds based on information provided by Lipper Inc. and MFS. The Trustees considered whether the Funds were subject to any fee waivers or reductions or expense limitations. The Trustees considered that MFS observes an advisory fee reduction that will remain in effect for each Fund through February 28, 2009 as part of MFS's settlement with the New York Attorney General concerning market timing and related matters. 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 Funds 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 Funds, and the impact on MFS and expenses associated with the more extensive regulatory regime to which the Funds are subject in comparison to institutional accounts. The Trustees also considered whether each 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 each Fund's advisory fee rate schedule is not currently subject to any breakpoints. Taking into account the advisory fee reduction noted above and any expense limitations, the Trustees determined not to recommend any advisory fee breakpoints for the Funds at this time. The Trustees also considered information prepared by MFS relating to MFS' costs and profits with respect to each 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 Funds 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 agreements, that the advisory fees charged to each Fund represent reasonable compensation in light of the services being provided by MFS to the Funds. In addition, the Trustees considered MFS' resources and related efforts to continue to retain, attract and motivate capable personnel to serve the Funds. 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 Funds of having an adviser which also serves other investment companies as well as other accounts. The Trustees also considered the nature, quality, cost, and extent of administrative, transfer agency, and distribution services provided to the Funds by MFS and its affiliates under agreements and plans other than the investment advisory agreements, including any 12b-1 fees the Funds pay 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 Funds' 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 Funds' 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 Funds. 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 each Fund's investment advisory agreement with MFS should be continued for an additional one-year period, commencing August 1, 2006. MFS MISSISSIPPI MUNICIPAL BOND FUND The Fund's Class A performance was in the 2nd quintile relative to the other funds in the universe for the three-year period ended December 31, 2005 (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, 2005 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 assessing the reasonableness of the Fund's advisory fee, the Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate (taking into account the advisory fee reduction) and total expense ratio were each lower than the Lipper expense group median. MFS NEW YORK MUNICIPAL BOND FUND The Fund's Class A performance was in the 3rd quintile relative to the other funds in the universe for the three-year period ended December 31, 2005 (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, 2005 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 assessing the reasonableness of the Fund's advisory fee, the Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate (taking into account the advisory fee reduction) was lower than the Lipper expense group median, and the Fund's total expense ratio was approximately at the Lipper expense group median. MFS NORTH CAROLINA MUNICIPAL BOND FUND The Fund's Class A performance was in the 2nd quintile relative to the other funds in the universe for the three-year period ended December 31, 2005 (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, 2005 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 assessing the reasonableness of the Fund's advisory fee, the Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate (taking into account the advisory fee reduction) was lower than the Lipper expense group median, and the Fund's total expense ratio was approximately at the Lipper expense group median. MFS PENNSYLVANIA MUNICIPAL BOND FUND The Fund's Class A performance was in the 2nd quintile relative to the other funds in the universe for the three-year period ended December 31, 2005 (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, 2005 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 assessing the reasonableness of the Fund's advisory fee, the Trustees considered, the advisory fee reduction noted above and that MFS currently observes an expense limitation for the Fund. The Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate (taking into account advisory fee reduction and the expense limitation) and total expense ratio were each lower than the Lipper expense group median. MFS SOUTH CAROLINA MUNICIPAL BOND FUND The Fund's Class A performance was in the 2nd quintile relative to the other funds in the universe for the three-year period ended December 31, 2005 (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, 2005 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 assessing the reasonableness of the Fund's advisory fee, the Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate (taking into account the advisory fee reduction) was lower than the Lipper expense group median, and the Fund's total expense ratio was approximately at the Lipper expense group median. MFS TENNESSEE MUNICIPAL BOND FUND The Fund's Class A performance was in the 3rd quintile relative to the other funds in the universe for the three-year period ended December 31, 2005 (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, 2005 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 assessing the reasonableness of the Fund's advisory fee, the Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate (taking into account the advisory fee reduction) was lower than the Lipper expense group median, and the Fund's total expense ratio was approximately at the Lipper expense group median. MFS VIRGINIA MUNICIPAL BOND FUND The Fund's Class A performance was in the 2nd quintile relative to the other funds in the universe for the three-year period ended December 31, 2005 (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, 2005 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 assessing the reasonableness of the Fund's advisory fee, the Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate (taking into account the advisory fee reduction) was lower than the Lipper expense group median, and the Fund's total expense ratio was at the Lipper expense group median. MFS WEST VIRGINIA MUNICIPAL BOND FUND The Fund's Class A performance was in the 2nd quintile relative to the other funds in the universe for the three-year period ended December 31, 2005 (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, 2005 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 assessing the reasonableness of the Fund's advisory fee, the Trustees also considered that, according to the Lipper data, the Fund's effective advisory fee rate (taking into account the advisory fee reduction) was lower than the Lipper expense group median, and the Fund's total expense ratio was approximately at the Lipper expense group median. ACCESS TO DISCLOSURE ON MFS WEB SITE A discussion regarding the Board's most recent review and renewal of each Fund's investment advisory agreement will be available on or before November 1, 2006, by clicking on each 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 each 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 trust 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 trust'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 trust'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. CONTACT US WEB SITE mfs.com MFS TALK 1-800-637-8255 24 hours a day ACCOUNT SERVICE AND LITERATURE 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 MAILING ADDRESS MFS Service Center, Inc. P.O. Box 55824 Boston, MA 02205-5824 OVERNIGHT MAIL MFS Service Center, Inc. 500 Boylston Street Boston, MA 02116-3741 - ------------------------------------------------------------------------------- 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 500 Boylston Street, Boston, MA 02116 M F S(R) INVESTMENT MANAGEMENT [graphic omitted] SEMIANNUAL REPORT MFS(R) MUNICIPAL INCOME FUND LETTER FROM THE CEO 1 - ------------------------------------------------------------------- PORTFOLIO COMPOSITION 2 - ------------------------------------------------------------------- EXPENSE TABLE 3 - ------------------------------------------------------------------- PORTFOLIO OF INVESTMENTS 5 - ------------------------------------------------------------------- STATEMENT OF ASSETS AND LIABILITIES 26 - ------------------------------------------------------------------- STATEMENT OF OPERATIONS 28 - ------------------------------------------------------------------- STATEMENTS OF CHANGES IN NET ASSETS 29 - ------------------------------------------------------------------- FINANCIAL HIGHLIGHTS 30 - ------------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS 33 - ------------------------------------------------------------------- BOARD REVIEW OF INVESTMENT ADVISORY AGREEMENT 42 - ------------------------------------------------------------------- PROXY VOTING POLICIES AND INFORMATION 46 - ------------------------------------------------------------------- QUARTERLY PORTFOLIO DISCLOSURE 46 - ------------------------------------------------------------------- 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 - ------------------------------------------------------------------------------ 9/30/06 LMB-SEM [Photo of Robert J. Manning] LETTER FROM THE CEO Dear Shareholders: What a difference a year can make. By the end of 2005, the Dow Jones Industrial Average had lost value over the course of the year, as stocks were beaten back by a myriad of investor worries, including a spike in oil prices, a rise in interest rates, and political uncertainty in the Middle East. Fast forward to 2006, and we have seen a dramatically different picture. While there were some fluctuations in the global markets in the first half of the year, the second half of 2006 has, so far, been good to many investors. Oil prices retreated, boosting consumer confidence, and interest rates have held steady. U.S. stock markets responded favorably to this news, as the Dow reached a record high in October, passing the 12,000 mark. What does all of this mean for you? If you're focused on a long-term investment strategy, the high points in the road -- and the bumps -- should not necessarily dictate portfolio action on your part. Markets are inherently cyclical, and we firmly believe that investors who remain committed to a long- term investment strategy are more likely to achieve their goals than those who consistently chase short-term performance. At MFS(R), our unique teamwork approach to managing money and our global research platform support an unwavering focus on helping you realize your long-term financial goals. We believe in a three-pronged investment strategy of allocating your holdings across major asset classes, diversifying within each class, and rebalancing regularly. 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 are essential to capitalizing on the many opportunities the financial markets can offer. Respectfully, /s/ Robert J. Manning Robert J. Manning Chief Executive Officer and Chief Investment Officer MFS Investment Management(R) November 15, 2006 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 Bonds 99.6% Cash & Other Assets 0.4% TOP FIVE INDUSTRIES (i) Healthcare Revenue - Hospitals 20.1% - ------------------------------------------------------- General Obligations - Schools 8.5% - ------------------------------------------------------- General Obligations - General Purpose 7.5% - ------------------------------------------------------- Utilities - Municipal Owned 6.5% - ------------------------------------------------------- Utilities - Investor Owned 5.1% - ------------------------------------------------------- CREDIT QUALITY OF BONDS (r) AAA 36.9% - ------------------------------------------------------- AA 11.3% - ------------------------------------------------------- A 16.5% - ------------------------------------------------------- BBB 22.0% - ------------------------------------------------------- BB 2.9% - ------------------------------------------------------- B 1.5% - ------------------------------------------------------- CCC 0.4% - ------------------------------------------------------- Not Rated 8.5% - ------------------------------------------------------- PORTFOLIO FACTS Average Duration (d) 5.8 - ------------------------------------------------------- Average Life (m) 13.9 yrs. - ------------------------------------------------------- Average Maturity (m) 16.5 yrs. - ------------------------------------------------------- Average Credit Quality of Rated Securities (long-term) (a) A+ - ------------------------------------------------------- Average Credit Quality of Rated Securities (short-term) (a) A-1 - ------------------------------------------------------- (a) The average credit quality of rated securities is based upon a market weighted average of portfolio holdings that are rated by public rating agencies. (d) Duration is a measure of how much a bond's price is likely to fluctuate with general changes in interest rates, e.g., if rates rise 1.00%, a bond with a 5-year duration is likely to lose about 5.00% of its value. (i) For purposes of this graphical presentation, the bond component includes both accrued interest amounts and the equivalent exposure from any derivative holdings, if applicable. (m) The average maturity shown is calculated using the final stated maturity on the portfolio's holdings without taking into account any holdings which have been pre- refunded or pre-paid to an earlier date or which have a mandatory put date prior to the stated maturity. The average life shown takes into account these earlier dates. (r) Each security is assigned a rating from Moody's Investors Service. If not rated by Moody's, the rating will be that assigned by Standard & Poor's. Likewise, if not assigned a rating by Standard & Poor's, it will be based on the rating assigned by Fitch, Inc. For those portfolios that hold a security which is not rated by any of the three agencies, the security is considered Not Rated. Holdings in U.S. Treasuries and government agency mortgage-backed securities, if any, are included in the "AAA"-rating category. Percentages are based on the total market value of investments as of 9/30/06. Percentages are based on net assets as of 9/30/06, unless otherwise noted. The portfolio is actively managed and current holdings may be different. EXPENSE TABLE Fund expenses borne by the shareholders during the period, April 1, 2006 through September 30, 2006. As a shareholder of the fund, you incur two types of costs: (1) transaction costs, including sales charges (loads) on certain purchase or redemption payments and redemption fees on certain exchanges and redemptions, and (2) ongoing costs, including management fees; distribution and service (12b-1) fees; and other fund expenses. This example is intended to help you understand your ongoing costs (in dollars) of investing in the fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 invested at the beginning of the period and held for the entire period April 1, 2006 through September 30, 2006. 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) or redemption fees. Therefore, the second line for each share class in the table is useful in comparing ongoing costs only, and will not help you determine the relative total costs of owning different funds. In addition, if these transactional costs were included, your costs would have been higher. - -------------------------------------------------------------------------------- Expenses Paid During Annualized Beginning Ending Period (p) Share Expense Account Value Account Value 4/01/06- Class Ratio 4/01/06 9/30/06 9/30/06 - -------------------------------------------------------------------------------- Actual 0.81% $1,000.00 $1,032.10 $4.13 A ------------------------------------------------------------------------ Hypothetical (h) 0.81% $1,000.00 $1,021.01 $4.10 - -------------------------------------------------------------------------------- Actual 1.56% $1,000.00 $1,028.30 $7.93 B ------------------------------------------------------------------------ Hypothetical (h) 1.56% $1,000.00 $1,017.25 $7.89 - -------------------------------------------------------------------------------- Actual 1.56% $1,000.00 $1,029.40 $7.94 C ------------------------------------------------------------------------ Hypothetical (h) 1.56% $1,000.00 $1,017.25 $7.89 - -------------------------------------------------------------------------------- (h) 5% class return per year before expenses. (p) Expenses paid is equal to each class' annualized expense ratio, as shown above, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year. Expenses paid do not include any applicable sales charges (loads) or redemption fees. If these transaction costs had been included, your costs would have been higher. PORTFOLIO OF INVESTMENTS 9/30/06 (unaudited) The Portfolio of Investments is a complete list of all securities owned by your fund. It is categorized by broad-based asset classes. Municipal Bonds - 98.4% - --------------------------------------------------------------------------------------------------------- ISSUER SHARES/PAR VALUE ($) - --------------------------------------------------------------------------------------------------------- Airport & Port Revenue - 2.7% - --------------------------------------------------------------------------------------------------------- Chicago, IL, O'Hare International Airport Rev. (Second Lien Passenger Facility D), AMBAC, 5.5%, 2019 $ 350,000 $ 375,920 Chicago, IL, O'Hare International Airport Rev., RITES, FSA, 7.476%, 2022 (v)(z) 1,500,000 1,803,265 Chicago, IL, O'Hare International Airport Rev., Third Lien, "A", MBIA, 5%, 2029 950,000 1,002,435 Indianapolis, IN, Local Public Improvement (Airport Authority Project), "I", MBIA, 5%, 2034 200,000 206,665 Louisville & Jefferson County, KY, Regional Airport Authority, "A", MBIA, 6.5%, 2017 3,000,000 3,112,975 Miami-Dade County, FL, Aviation Rev., "A", CIFG, 5%, 2038 500,000 520,942 New York, NY, City Industrial Development Agency, Special Facilities Rev. (Terminal One Group), 5.5%, 2024 195,000 210,514 Oklahoma City, OK, Airport Trust, "B", FSA, 5.75%, 2017 1,080,000 1,147,316 ---------------- $ 8,380,032 - --------------------------------------------------------------------------------------------------------- General Obligations - General Purpose - 7.4% - --------------------------------------------------------------------------------------------------------- Chicago, IL (Lakefront Millennium Parking Facilities), MBIA, 5.7%, 2025 $ 645,000 $ 702,657 Chicago, IL (Lakefront Millennium Parking Facilities), MBIA, 5%, 2018 4,000,000 4,184,360 Commonwealth of Puerto Rico, Public Improvement, "A", 5.25%, 2027 235,000 252,211 Commonwealth of Puerto Rico, ROLS, FGIC, 7.553%, 2015 (v)(z) 3,000,000 3,804,780 Country Club Hills, IL, "N", MBIA, 5%, 2031 710,000 748,333 Cranston, RI, FGIC, 6.375%, 2009 (c) 200,000 218,486 Houston County, AL, AMBAC, 6.25%, 2009 (c) 850,000 931,430 Interlocken Metropolitan District, CO, Improvement, "C", XLCA, 0%, 2027 510,000 156,703 Kane Kendall County, IL, Capital Appreciation, "E", FGIC, 0%, 2023 1,360,000 593,354 Kane Kendall County, IL, Capital Appreciation, "E", FGIC, 0%, 2025 1,335,000 520,343 Massachusetts Consolidated Loan, "C", 5.875%, 2009 (c) 3,205,000 3,431,561 Mobile County, AL, 6%, 2009 (c) 800,000 851,752 New York, NY, "J", MBIA, 5%, 2017 2,000,000 2,083,320 San Antonio, TX, 5%, 2020 700,000 722,876 Southlake, TX, AMBAC, 0%, 2009 (c) 3,185,000 1,246,195 Southlake, TX, AMBAC, 0%, 2009 (c) 3,150,000 1,152,774 State of Illinois, MBIA, 5.5%, 2025 110,000 115,840 State of Wisconsin, "C", 6%, 2010 (c) 1,200,000 1,296,180 ---------------- $ 23,013,155 - --------------------------------------------------------------------------------------------------------- General Obligations - Improvement - 1.6% - --------------------------------------------------------------------------------------------------------- Birmingham, AL, "A", 5.75%, 2017 $ 1,000,000 $ 1,080,010 Worcester, MA, FSA, 6%, 2010 (c) 3,475,000 3,784,206 ---------------- $ 4,864,216 - --------------------------------------------------------------------------------------------------------- General Obligations - Schools - 8.4% - ---------------------------------------------------------------------------------------------------------- Adams 12 Five Star Schools, CO, "B", FGIC, 0%, 2025 $ 490,000 $ 195,314 De Soto, TX, Independent School District, School Building, PSF, 0%, 2031 380,000 109,068 De Soto, TX, Independent School District, School Building, PSF, 0%, 2034 285,000 69,278 De Soto, TX, Independent School District, School Building, PSF, 0%, 2036 380,000 82,897 Dudley-Charlton, MA, Regional School District, RITES, FGIC, 6.545%, 2013 (v)(z) 1,495,000 1,864,624 Ennis, TX, Independent School District, Capital Appreciation, "N", PSF, 0%, 2028 200,000 68,056 Ennis, TX, Independent School District, Capital Appreciation, "N", PSF, 0%, 2029 385,000 126,292 Ennis, TX, Independent School District, Capital Appreciation, "N", PSF, 0%, 2031 380,000 109,835 Ferris, TX, Independent School District, PSF, 5.5%, 2034 640,000 698,432 Florida Board of Education Capital Outlay, Public Education, "A", 5%, 2019 1,000,000 1,029,760 Fresno, CA, Unified School District, MBIA, 6.55%, 2020 1,225,000 1,431,829 Goose Creek, TX, Consolidated School District, PSF, 5%, 2009(c) 2,500,000 2,597,775 Houston, TX, Independent School District, RITES, 6.525%, 2017 (v)(z) 2,325,000 2,502,537 Keller, TX, Independent School District, PSF, 6%, 2017 225,000 243,799 Knox County, KY, Independent School District, XLCA, 5.5%, 2029 640,000 706,227 Lancaster, TX, Independent School District, Capital Appreciation, FSA, 0%, 2014 (c) 485,000 176,525 Lancaster, TX, Independent School District, Capital Appreciation, FSA, 0%, 2014 (c) 430,000 147,163 Lancaster, TX, Independent School District, Capital Appreciation, FSA, 0%, 2025 275,000 113,603 Lancaster, TX, Independent School District, Capital Appreciation, FSA, 0%, 2026 275,000 107,616 Leander, TX, Independent School District, Capital Appreciation, Refunding, School Building, FGIC, 0%, 2026 900,000 331,920 Leander, TX, Independent School District, Capital Appreciation, Refunding, School Building, FGIC, 0%, 2031 910,000 249,467 Leander, TX, Independent School District, PSF, 0%, 2018 2,500,000 1,284,500 Manchester, NH, School Facilities Rev., MBIA, 5.5%, 2027 215,000 255,654 Manchester, NH, School Facilities Rev., MBIA, 5.5%, 2028 215,000 255,852 Manistee, MI, Area Public Schools, FGIC, 5.75%, 2009 (c) 700,000 738,087 Palos Verdes Peninsula, CA, Capital Appreciation, "N", FSA, 0%, 2029 1,115,000 393,372 Phenix City, AL, AMBAC, 5.65%, 2010 (c) 1,500,000 1,635,615 Philadelphia, PA, School District, MBIA, 6%, 2010 (c) 750,000 807,473 Prosper, TX, Independent School District, Capital Appreciation School Building, "N", PSF, 0%, 2031 515,000 145,122 Roma, TX, Independent School District, PSF, 5.875%, 2010 (c) 1,705,000 1,845,594 San Jose Evergreen, CA, Community College District, Election 2004, "A", MBIA, 0%, 2028 740,000 245,184 Wattsburg, PA, Public School Building Authority Rev., Capital Appreciation, MBIA, 0%, 2029 2,150,000 768,754 Williamson County, TN, Rural School, 6.125%, 2010 (c) 1,665,000 1,799,216 Williamson County, TN, Rural School, 6.125%, 2010 (c) 1,765,000 1,907,277 Wylie, TX, Independent School District, PSF, 5.25%, 2029 1,080,000 1,148,731 ---------------- $ 26,192,448 - --------------------------------------------------------------------------------------------------------- Healthcare Revenue - Hospitals - 19.8% - --------------------------------------------------------------------------------------------------------- Allegheny County, PA, Hospital Development Authority Rev. (West Penn Allegheny Health), 9.25%, 2030 $ 650,000 $ 772,948 Allegheny County, PA, Hospital Development Authority Rev. (West Penn Allegheny Health), "B", 9.25%, 2022 350,000 415,912 Baldwin County, AL, Eastern Shore Health Care Authority Rev. (Thomas Hospital), 5.75%, 2008 (c) 600,000 630,036 Baxter County, AR, Hospital Rev., 5.375%, 2014 1,000,000 1,033,750 Chemung County, NY, Civic Facilities Rev. (St. Joseph's Hospital-Elmira), "A", 6%, 2013 600,000 604,140 Colorado Health Facilities Authority Rev. (Portercare Adventist Health Systems), 6.625%, 2011 (c) 500,000 573,960 Cuyahoga County, OH, Hospital Facilities Rev. (Canton, Inc.), 7.5%, 2030 900,000 1,008,801 Denver, CO, Health & Hospital Authority Rev., 5.375%, 2018 300,000 306,744 Denver, CO, Health & Hospital Authority Rev., "A", 6%, 2023 500,000 533,910 District of Columbia, Health & Hospital Authority Rev. (Medstar University Hospital), "D", 6.875%, 2007 (c) 700,000 708,547 Fulton County, NY, Industrial Development Agency, Civic Facilities Rev. (Nathan Littauer Hospital), "A", 5.75%, 2009 205,000 208,274 Gainesville & Hall County, GA, Hospital Authority Rev. (Northeast Georgia Health System, Inc.), 5.5%, 2031 445,000 464,460 Gulfport, MS, Hospital Facilities Rev. (Memorial Hospital), 5.75%, 2031 525,000 544,310 Henrico County, VA, Industrial Development Authority Rev. (Bon Secours), RIBS, FSA, 8.177%, 2027 (v) 5,000,000 6,684,000 Highlands County, FL, Health Facilities Authority Rev. (Adventist Health Systems), "C", 5.25%, 2036 465,000 493,063 Highlands County, FL, Health Facilities Authority Rev. (Adventist/Sunbelt Hospital), 6%, 2011 (c) 350,000 391,643 Illinois Health Facilities Authority Rev. (Condell Medical Center), 6.35%, 2015 1,000,000 1,067,800 Illinois Health Facilities Authority Rev. (Decatur Memorial Hospital), 5.75%, 2024 350,000 367,770 Illinois Health Facilities Authority Rev. (Passavant Memorial Area Hospital Associates), 6%, 2024 335,000 361,837 Illinois Health Facilities Authority Rev. (Riverside Health Systems), 5.75%, 2022 650,000 678,496 Illinois Health Facilities Authority Rev. (Sinai Health), FHA, 5.15%, 2037 640,000 670,842 Indiana Health Facilities Financing Authority Hospital Rev. (Deaconess Hospital), "A", AMBAC, 5.375%, 2034 565,000 606,867 Indiana Health Facilities Financing Authority, Hospital Rev. (Clarian Health), "A", 5%, 2039 260,000 268,427 Indiana Health Facilities Financing Authority, Hospital Rev. (Munster Medical Research Foundation, Inc.), 6.375%, 2031 500,000 533,570 Indiana Health Facilities Financing Authority, Hospital Rev. (Munster Medicial Research Foundation, Inc.), 6.375%, 2021 1,700,000 1,814,903 Indiana Health Facilities Financing Authority, Hospital Rev. (Riverview Hospital), 5.25%, 2014 400,000 410,840 Indiana Health Facilities Financing Authority, Hospital Rev. (Riverview Hospital), 6.125%, 2031 250,000 267,878 Kentucky Economic Development Finance Authority, Health Systems Rev. (Norton Healthcare, Inc.), 6.5%, 2020 1,250,000 1,359,463 Kentucky Economic Development Finance Authority, Health Systems Rev. (Norton Healthcare, Inc.), 6.625%, 2028 250,000 272,933 Kentucky Economic Development Finance Authority, Refunding & Improvement, "A", MBIA, 5%, 2018 2,400,000 2,471,040 Knox County, TN, Health Educational Hospital Facility (Baptist Health Systems, East Tennessee), 6.375%, 2022 1,000,000 1,066,670 Lauderdale County & Florence, AL (Coffee Health Group), "A", MBIA, 5.25%, 2019 1,100,000 1,145,166 Macomb County, MI, Hospital Finance Authority Rev. (Mount Clemens General Hospital), 5.75%, 2025 1,000,000 1,046,140 Marion County, FL, Hospital District Rev. (Monroe Hospital), 5.625%, 2019 750,000 783,578 Marshall County, AL, Health Care Authority Rev., "A", 6.25%, 2022 500,000 552,005 Martin County, FL, Health Facilities Authority Rev. (Martin Memorial Medical Center), "A", 5.75%, 2022 850,000 911,727 Maryland Health & Higher Educational Facilities Authority Rev. (Medstar Health), 5.5%, 2033 305,000 323,337 Maryland Health & Higher Educational Facilities Authority Rev. (University of Maryland Medical System), 6.75%, 2010 (c) 1,000,000 1,117,650 Massachusetts Health & Educational Facilities Authority Rev. (Caritas Christi), 5.7%, 2015 1,000,000 1,042,990 Massachusetts Health & Educational Facilities Authority Rev. (Caritas Christi), "B", 6.5%, 2012 400,000 434,956 Massachusetts Health & Educational Facilities Authority Rev. (Partners Healthcare Systems), "C", 5.75%, 2021 400,000 434,876 Mecosta County, MI, General Hospital Rev., 6%, 2018 300,000 308,991 Miami Beach, FL, Health Facilities Authority Rev. (Mount Sinai Medical Center), "A", 6.7%, 2019 750,000 828,683 Michigan Hospital Finance Authority Rev. (Memorial Healthcare Center), 5.75%, 2015 800,000 838,768 Monroe County, MI, Hospital Finance Authority Hospital Rev. (Mercy Memorial Hospital Corp.), 5.5%, 2035 670,000 703,132 Montgomery, AL, Special Care Facilities, Financing Authority Rev. (Baptist Health), "A-2", MBIA, 0% to 2007, 5% to 2014 (c) 1,270,000 1,299,629 Mount Lebanon, PA, Hospital Authority Rev. (St. Clair Memorial Hospital), 5.625%, 2032 375,000 396,109 Nassau County, NY, Industrial Development Agency, Civic Facilities Rev. (North Shore Health System), 5.875%, 2011 330,000 345,616 New Hampshire Health & Educational Facilities Authority Rev. (Covenant Health), 6.5%, 2017 820,000 918,958 New Hampshire Health & Educational Facilities Authority Rev. (Exeter Hospital), 6%, 2024 500,000 549,900 New Jersey Health Care Facilities (Palisades Medical Center), 6.5%, 2021 500,000 548,160 North Texas Health Facilities Development Corp. Rev. (United Regional Health Care System, Inc.), 6%, 2023 1,000,000 1,085,080 Ohio County, WV, County Commission Health System Rev. (Ohio Valley Medical Center), 5.75%, 2013 900,000 870,624 Oklahoma Development Finance Authority Rev. (Comanche County Hospital), 6%, 2014 600,000 663,798 Oklahoma Development Finance Authority Rev. (Comanche County Hospital), 6.6%, 2031 255,000 279,936 Rhode Island Health & Education Building Corp. Hospital Financing (Lifespan Obligated Group), "A", FSA, 5%, 2032 1,120,000 1,173,962 Rhode Island Health & Education Building Rev., Hospital Financing (Lifespan Obligated Group), 6.5%, 2012 (c) 1,500,000 1,724,610 Royston, GA, Hospital Authority Rev. (Ty Cobb Healthcare Systems, Inc.), 6.5%, 2027 290,000 298,947 Shelby County, TN, Educational & Housing Facilities Board Hospital Rev. (Methodist Healthcare), 6%, 2012 (c) 300,000 337,323 Shelby County, TN, Educational & Housing Facilities Board Hospital Rev. (Methodist Healthcare), 6%, 2012 (c) 500,000 562,205 South Carolina Jobs & Economic Development Authority, Hospital Facilities Rev. (Palmetto Health Alliance), 6.25%, 2031 500,000 547,205 Steubenville, OH, Hospital Rev. (Trinity Hospital), 6.375%, 2020 300,000 328,245 Stillwater, OK, Medical Center Authority (Stillwater Medical Center), 6.5%, 2007 (c) 1,000,000 1,037,160 Suffolk County, NY, Industrial Development Agency, Civic Facilities Rev. (Huntington Hospital), "C", 5.875%, 2032 1,000,000 1,061,970 Tallahassee, FL, Health Facilities Rev. (Tallahassee Memorial Healthcare), 6.25%, 2020 1,000,000 1,061,340 Tom Green County, TX, Health Facilities Rev. (Shannon Health System), 6.75%, 2021 400,000 432,660 Upper Illinois River Valley Development, Health Facilities Rev. (Morris Hospital), 6.625%, 2031 500,000 548,010 Valley, AL, Special Care Facilities Financing (Lanier Memorial Hospital), 5.5%, 2007 500,000 505,380 Wapello County, IA, Hospital Authority Rev. (Ottumwa Regional Health Center), 6.375%, 2031 750,000 808,050 Weirton, WV, Municipal Hospital Building, Commission Rev. (Weirton Hospital Medical Center), 6.375%, 2031 500,000 521,880 West Plains, MO, Industrial Development Authority Rev. (Ozarks Medical Center), 6.75%, 2024 195,000 201,839 West Shore, PA, Hospital Authority (Holy Spirit Hospital), 6.25%, 2032 1,000,000 1,075,510 Wichita, KS, Hospital Authority Rev. (Via Christi Health System), 6.25%, 2019 1,500,000 1,666,125 Wisconsin Health & Educational Facilities Authority Rev. (Agnesian Healthcare, Inc.), 6%, 2017 325,000 347,298 Wisconsin Health & Educational Facilities Authority Rev. (Aurora Health Care, Inc.), 6.875%, 2030 750,000 864,465 Wisconsin Health & Educational Facilities Authority Rev. (Wheaton Franciscan Services), 6.25%, 2022 1,000,000 1,113,070 Yonkers, NY, Industrial Development Agency, Civic Facilities Rev. (St. John's Riverside Hospital), 6.8%, 2016 385,000 411,769 ---------------- $ 61,652,666 - --------------------------------------------------------------------------------------------------------- Healthcare Revenue - Long Term Care - 1.9% - --------------------------------------------------------------------------------------------------------- Bell County, TX, Health Facilities Development Rev. (Advanced Living Technology), 7.75%, 2006 $ 30,000 $ 29,984 Bell County, TX, Health Facilities Development Rev. (Advanced Living Technology), 8.125%, 2016 505,000 490,123 Bell County, TX, Health Facilities Development Rev. (Advanced Living Technology), 8.5%, 2026 1,130,000 1,081,218 Colorado Health Facilities Authority Rev. (Evangelical Lutheran), 6.9%, 2025 500,000 564,310 Cumberland County, PA, Municipal Authority Rev. (Wesley), "A", 7.25%, 2013 (c) 270,000 324,778 Cumberland County, PA, Municipal Authority Rev. (Wesley), "A", 7.25%, 2035 105,000 113,395 Eden Prairie, MN, Multi-Family Housing Rev. (Coll-Rolling Hills), "A", GNMA, 6%, 2021 200,000 216,876 Indiana Health Facilities Financing Authority Rev. (Hoosier Care), 7.125%, 2034 800,000 812,912 Iowa Finance Authority, Health Care Facilities Rev. (Care Initiatives Project), 9.25%, 2011 (c) 480,000 599,400 Iowa Finance Authority, Health Care Facilities Rev. (Care Initiatives Project), "A", 5.5%, 2025 275,000 285,654 Millbrae, CA, Residential Facilities Rev. (Magnolia of Millbrae), "A", 7.375%, 2027 930,000 967,925 Montana Facility Finance Authority Rev. (Senior Living St Johns Lutheran), "A", 6.125%, 2036 170,000 177,582 Shelby County, TN, Health Educational Rev. (Germantown Village), 7.25%, 2034 385,000 414,453 ---------------- $ 6,078,610 - --------------------------------------------------------------------------------------------------------- Human Services - 0.6% - --------------------------------------------------------------------------------------------------------- Louisiana Local Government Environmental Facilities & Community Development (Westside Rehab Center Project), "B", 6.5%, 2013 $ 450,000 $ 452,529 Nassau County, NY, Industrial Development Civic (Special Needs Facilities), 6.1%, 2012 225,000 232,776 Orange County, FL, Health Facilities Authority Rev. (GF/Orlando Healthcare Facilities), 9%, 2031 1,000,000 1,103,860 ---------------- $ 1,789,165 - --------------------------------------------------------------------------------------------------------- Industrial Revenue - Airlines - 0.8% - --------------------------------------------------------------------------------------------------------- Los Angeles, CA, Regional Airport Lease Rev. (AMR Corp.), 7%, 2012 $ 300,000 $ 319,158 New York, NY, Industrial Development Agency Rev. (American Airlines, Inc.), 7.625%, 2025 970,000 1,139,362 Tulsa, OK, Municipal Airport Trust Rev. (American Airlines, Inc.), "B", 5.65%, 2035 1,000,000 1,003,940 ---------------- $ 2,462,460 - --------------------------------------------------------------------------------------------------------- Industrial Revenue - Chemicals - 0.7% - --------------------------------------------------------------------------------------------------------- Brazos River, TX, Harbor Navigation District (Dow Chemical Co.), 5.7%, 2033 $ 1,000,000 $ 1,070,150 Red River Authority, TX, Pollution Control Rev. (Celanese Project), "B", 6.7%, 2030 1,000,000 1,097,620 ---------------- $2,167,770 - --------------------------------------------------------------------------------------------------------- Industrial Revenue - Environmental Services - 1.5% - --------------------------------------------------------------------------------------------------------- California Pollution Control Financing Authority, Solid Waste Disposal Rev. (Waste Management, Inc.), "A-2", 5.4%, 2025 $ 215,000 $ 228,618 Carbon County, UT, Solid Waste Disposal Rev. (Laidlaw Environmental), 7.45%, 2017 2,500,000 2,602,450 Charles City County, VA, Industrial Development Authority, Solid Waste Disposal Facility Rev. (Waste Management, Inc.), 6.25%, 2027 500,000 544,435 Colorado Housing & Finance Authority, Solid Waste Rev. (Waste Management, Inc.), 5.7%, 2018 230,000 253,177 Gloucester County, NJ, Solid Waste Resource Recovery Rev. (Waste Management, Inc.), 6.85%, 2029 150,000 162,371 Massachusetts Development Finance Agency Rev. (Waste Management, Inc.), "B", 6.9%, 2029 300,000 324,165 Nevada Department of Business & Industry Rev. (Republic Services, Inc.), 5.625%, 2026 450,000 492,084 ---------------- $ 4,607,300 - --------------------------------------------------------------------------------------------------------- Industrial Revenue - Metals - 0.0% - --------------------------------------------------------------------------------------------------------- Burns Harbor, IN, Solid Waste Disposal Facilities Rev. (Bethlehem Steel), 8%, 2024 (d) $ 3,000,000 $ 300 - --------------------------------------------------------------------------------------------------------- Industrial Revenue - Other - 2.6% - --------------------------------------------------------------------------------------------------------- Bucks County, PA, Industrial Development Authority Rev. (USX Corp.), 5.4%, 2017 $ 500,000 $ 538,940 Gulf Coast, TX, Industrial Development Authority (Valero Energy Corp.), 5.6%, 2031 500,000 517,705 Hardeman County, TN, Correctional Facilities Corp. (Corrections Corp. of America), 7.375%, 2017 500,000 513,895 Massachusetts Development Finance Agency Rev., Resource Recovery (Fluor Corp.), 5.625%, 2019 2,895,000 3,033,699 Massachusetts Industrial Finance Agency Rev. (Welch Foods, Inc.), 5.6%, 2017 1,300,000 1,346,722 Park Creek Metropolitan District, CO, (Custodial Receipts), "CR-2", 7.875%, 2032 (n) 400,000 444,960 Pennsylvania Economic Development Financing Authority Rev. (Amtrak), 6.125%, 2021 550,000 592,939 Tooele County, UT, Hazardous Waste Treatment Rev. (Union Pacific Corp.), 5.7%, 2026 980,000 1,024,825 ---------------- $ 8,013,685 - --------------------------------------------------------------------------------------------------------- Industrial Revenue - Paper - 2.2% - --------------------------------------------------------------------------------------------------------- Butler, AL, Industrial Development Board, Solid Waste Disposal Rev. (Georgia Pacific Corp.), 5.75%, 2028 $ 260,000 $ 266,139 Delta County, MI, Economic Development Corp., Environmental Improvements Rev. (Mead Westvaco Escanaba), "A", 6.25%, 2012 (c) 900,000 1,019,106 Mobile, AL, Industrial Development Board Improvement Rev. (International Paper Co.), "B", 6.45%, 2019 2,000,000 2,124,640 Navajo County, AZ, Industrial Development Authority Rev. (Stone Container Corp.), 7.4%, 2026 1,500,000 1,530,420 Navajo County, AZ, Industrial Development Authority Rev. (Stone Container Corp.), 7.2%, 2027 500,000 515,920 Onondaga County, NY, Industrial Development Authority Rev., Solid Waste Disposal Rev. (Solvay Paperboard LLC), 6.8%, 2014 900,000 943,929 West Point, VA, Industrial Development Authority, Solid Waste Disposal Rev. (Chesapeake Corp.), "A", 6.375%, 2019 550,000 551,056 ---------------- $ 6,951,210 - --------------------------------------------------------------------------------------------------------- Miscellaneous Revenue - Entertainment & Tourism - 0.1% - --------------------------------------------------------------------------------------------------------- New York Liberty Development Corp. Rev. (National Sports Museum), 6.125%, 2019 $ 265,000 $ 274,214 - --------------------------------------------------------------------------------------------------------- Miscellaneous Revenue - Other - 0.8% - --------------------------------------------------------------------------------------------------------- Austin, TX, Convention Center (Convention Enterprises, Inc.), "A", 6.6%, 2021 $ 300,000 $ 323,334 Austin, TX, Convention Center (Convention Enterprises, Inc.), "A", 6.7%, 2028 400,000 431,360 Baltimore, MD, Convention Center Hotel Rev., "A", XLCA, 5.25%, 2039 555,000 596,692 Gallery Certificate Trust, PA, Parking Rev., 4.5%, 2013 (n) 640,000 639,981 San Antonio, TX, Convention Center, Hotel Financial Corp., Contract Rev. (Empowerment Zone), "A", AMBAC, 5%, 2034 490,000 505,783 Toledo Lucas County, OH, Port Authority Development Rev. (Northwest Ohio Bond Fund), "C", 5.125%, 2025 65,000 66,061 ---------------- $ 2,563,211 - --------------------------------------------------------------------------------------------------------- Multi-Family Housing Revenue - 3.2% - --------------------------------------------------------------------------------------------------------- Bay County, FL, Housing Finance Authority, Multi-Family Rev. (Andrews Place II Apartments), FSA, 5%, 2035 $ 150,000 $ 153,404 Bay County, FL, Housing Finance Authority, Multi-Family Rev. (Andrews Place II Apartments), FSA, 5.1%, 2046 275,000 281,023 California Statewide Communities Development Authority Rev. (Irvine Apartments), 5.25%, 2025 1,000,000 1,026,010 Charter Mac Equity Issuer Trust, 6.625%, 2009 (n) 2,000,000 2,119,820 Eaglebend, CO, Affordable Housing Corp., 6.2%, 2007 (c) 1,000,000 1,038,500 GMAC Municipal Mortgage Trust, "B-1", 5.6%, 2039 (n) 1,000,000 1,057,040 GMAC Municipal Mortgage Trust, "C-1", 5.7%, 2040 (n) 500,000 508,445 Indianapolis, IN, Multi-Family Rev. (Cambridge Station Apartments II), FNMA, 5.25%, 2039 320,000 329,898 Munimae TE Bond Subsidiary LLC, "A-2", 4.9%, 2049 (n) 2,000,000 2,029,040 Newark, NJ, Housing Authority (Port Authority - Newark Marine Terminal), MBIA, 5.5%, 2028 215,000 236,081 North Charleston, SC, Housing Authority Rev. (Horizon Village), "A", FHA, 5.15%, 2048 305,000 307,464 Seattle, WA, Housing Authority Rev., Capped Fund Program (High Rise Rehab), "I", FSA, 5%, 2025 455,000 463,290 Tampa, FL, Housing Finance Authority, Multi-Family Rev. (Meridian River Development Corp.), 4.75%, 2026 335,000 340,732 ---------------- $ 9,890,747 - --------------------------------------------------------------------------------------------------------- Parking - 0.1% - --------------------------------------------------------------------------------------------------------- Rail Connections, Inc., MA Rev., 0%, 2009 (c) $ 100,000 $ 59,279 Rail Connections, Inc., MA Rev., 0%, 2009 (c) 210,000 116,399 Rail Connections, Inc., MA Rev., 0%, 2009 (c) 300,000 155,739 ---------------- $ 331,417 - --------------------------------------------------------------------------------------------------------- Sales & Excise Tax Revenue - 0.8% - --------------------------------------------------------------------------------------------------------- Austin, TX, Town Community Events Center Venue, FGIC, 6%, 2009 (c) $ 1,015,000 $ 1,087,654 Metropolitan Pier & Expo, IL, McCormick Place Expansion, MBIA, 5.25%, 2042 220,000 233,204 Miami Dade County, FL, Transportation Systems, "N", XLCA, 5%, 2022 1,130,000 1,210,931 ---------------- $ 2,531,789 - --------------------------------------------------------------------------------------------------------- Single Family Housing - Local - 3.5% - --------------------------------------------------------------------------------------------------------- Adams County, CO, Single Family Mortgage Rev., ETM, 8.875%, 2011 (c) $ 2,510,000 $ 3,065,287 Brevard County, FL, Housing Finance Authority Rev., "B", GNMA, 6.5%, 2022 141,000 141,618 Calcasieu Parish, LA, Public Trust Authority, Single Family Mortgage Rev., "A", GNMA, 6.05%, 2032 430,000 462,444 California Rural Home Mortgage Finance Authority Rev., GNMA, 6.55%, 2030 85,000 85,288 Chicago, IL, Single Family Mortgage Rev., "C", GNMA, 7.05%, 2030 10,000 10,193 Cook County, IL, Single Family Mortgage Rev., "A", 0%, 2015 365,000 79,917 Jefferson Parish, LA, Single Family Mortgage Rev., GNMA, 6.625%, 2023 280,000 299,552 Jefferson Parish, LA, Single Family Mortgage Rev., GNMA, 6.75%, 2030 400,000 409,768 Lee County, FL, Housing Finance Authority Rev. (Multi-County Program), "A-4", GNMA, 7%, 2031 10,000 10,050 Maricopa County, AZ, Single Family Mortgage Rev., "B", GNMA, 6.2%, 2034 65,000 65,975 Nortex Housing Finance Corp., TX, Single Family Mortgage Backed Securities Rev., "A", GNMA, 5.5%, 2038 785,000 833,529 Pima County, AZ, Industrial Development Authority Rev., "B-1", GNMA, 7.05%, 2030 160,000 160,715 Sedgwick & Shawnee Counties, KS, Single Family Housing Rev., "A", GNMA, 6.45%, 2029 495,000 502,544 Sedgwick & Shawnee Counties, KS, Single Family Housing Rev., "A", GNMA, 5.9%, 2035 230,000 248,658 Sedgwick & Shawnee Counties, KS, Single Family Housing Rev., "A", GNMA, 6.25%, 2035 115,000 123,453 Sedgwick & Shawnee Counties, KS, Single Family Housing Rev., "A", GNMA, 5.8%, 2036 585,000 643,927 Sedgwick & Shawnee Counties, KS, Single Family Housing Rev., "A-1", GNMA, 6.875%, 2026 60,000 61,062 Sedgwick & Shawnee Counties, KS, Single Family Housing Rev., "A-1", GNMA, 5.75%, 2037 190,000 207,364 Sedgwick & Shawnee Counties, KS, Single Family Housing Rev., "A-3", GNMA, 6%, 2035 365,000 399,222 Sedgwick & Shawnee Counties, KS, Single Family Housing Rev., "A-3", GNMA, 5.5%, 2037 335,000 356,108 Sedgwick & Shawnee Counties, KS, Single Family Housing Rev., "A-4", GNMA, 5.85%, 2037 365,000 399,091 Sedgwick & Shawnee Counties, KS, Single Family Housing Rev., "A-5", GNMA, 5.8%, 2027 280,000 296,526 Sedgwick & Shawnee Counties, KS, Single Family Housing Rev., "A-5", GNMA, 5.7%, 2036 590,000 644,215 Sedgwick & Shawnee Counties, KS, Single Family Housing Rev., "A-5", GNMA, 5.9%, 2037 140,000 153,889 Sedgwick & Shawnee Counties, KS, Single Family Housing Rev., "A-6", GNMA, 5.65%, 2036 445,000 467,455 Sedgwick & Shawnee Counties, KS, Single Family Housing Rev., "B", GNMA, 5.45%, 2027 325,000 347,019 Sedgwick & Shawnee Counties, KS, Single Family Housing Rev., "B-2", GNMA, 6.45%, 2033 285,000 305,617 ---------------- $ 10,780,486 - --------------------------------------------------------------------------------------------------------- Single Family Housing - State - 2.5% - --------------------------------------------------------------------------------------------------------- California Housing Finance Agency Rev., Home Mortgage, MBIA, 0%, 2028 $ 1,670,000 $ 547,677 Colorado Housing & Finance Authority Rev., 7.45%, 2016 30,000 30,299 Colorado Housing & Finance Authority Rev., 6.875%, 2028 60,000 60,303 Colorado Housing & Finance Authority Rev., 6.8%, 2030 70,000 70,924 Colorado Housing & Finance Authority Rev., "A-1", 7.4%, 2027 15,000 15,429 Colorado Housing & Finance Authority Rev., "A-2", 7.15%, 2014 7,000 7,143 Colorado Housing & Finance Authority Rev., "A-2", AMBAC, 6.6%, 2028 250,000 262,030 Colorado Housing & Finance Authority Rev., "B-2", 6.1%, 2023 105,000 109,295 Colorado Housing & Finance Authority Rev., "B-3", 6.55%, 2033 90,000 92,381 Colorado Housing & Finance Authority Rev., "C", 6.75%, 2021 35,000 36,124 Colorado Housing & Finance Authority Rev., "C-2", 5.9%, 2023 160,000 166,320 Colorado Housing & Finance Authority Rev., "C-2", FHA, 6.6%, 2032 150,000 153,821 Colorado Housing & Finance Authority Rev., "C-3", FHA, 6.375%, 2033 80,000 81,571 Louisiana Housing Finance Agency, Single Family Mortgage Rev., "B-2", GNMA, 7.55%, 2031 60,000 61,648 Louisiana Housing Finance Agency, Single Family Mortgage Rev., GNMA, 6.4%, 2032 115,000 115,899 Minnesota Housing Finance Agency Rev., Residential Housing Finance, "B", 4.8%, 2023 165,000 165,215 Missouri Housing Development Commission, Single Family Mortgage Rev. (Home Loan Program), GNMA, 6.35%, 2032 185,000 188,541 Missouri Housing Development Commission, Single Family Mortgage Rev. (Home Loan Program), "B", GNMA, 6.7%, 2030 165,000 169,381 Missouri Housing Development Commission, Single Family Mortgage Rev. (Home Loan Program), GNMA, 6.85%, 2032 160,000 164,530 Missouri Housing Development Commission, Single Family Mortgage Rev. (Home Loan Program), GNMA, 6.75%, 2034 95,000 100,351 New Hampshire Housing Finance Authority Rev., "B", 5.875%, 2030 95,000 95,390 New Hampshire Housing Finance Authority Rev., "B", 6.3%, 2031 80,000 80,286 New Hampshire Housing Finance Authority Rev., "B", 6.5%, 2035 705,000 766,878 New Mexico Mortgage Finance Authority Rev., "B-2", GNMA, 6.35%, 2033 165,000 170,457 New Mexico Mortgage Finance Authority Rev., GNMA, 7.1%, 2030 60,000 60,795 New Mexico Mortgage Finance Authority Rev., GNMA, 6.25%, 2032 335,000 347,140 New Mexico Mortgage Finance Authority, "N", GNMA, 5.95%, 2037 440,000 475,886 North Dakota Housing Finance Agency Rev., Housing Finance, "A", 5%, 2033 340,000 340,619 Ohio Housing Finance Agency Mortgage Rev., Residential Mortgage Backed, "C", GNMA, 5.9%, 2035 420,000 437,653 Oklahoma County Home Finance Mortgage Backed, "N", GNMA, 5.4%, 2038 565,000 598,160 Oklahoma Housing Finance Agency Rev., 6.65%, 2029 350,000 358,344 Texas Affordable Housing Corp., Single Family Mortgage Rev., GNMA, "B", 5.25%, 2039 520,000 550,410 Texas Housing & Community Affairs, Residential Mortgage Rev., GNMA, 7.1%, 2021 685,000 712,784 Vermont Housing Finance Agency Rev., FSA, 4.95%, 2032 235,000 236,530 ---------------- $ 7,830,214 - --------------------------------------------------------------------------------------------------------- Solid Waste Revenue - 1.0% - --------------------------------------------------------------------------------------------------------- Delaware County, PA, Industrial Development Authority, Resource Recovery Facilities Rev. (American Ref-Fuel Co.), "A", 6.2%, 2019 $ 500,000 $ 521,435 Hudson County, NJ, Solid Waste System Rev., 5.9%, 2015 830,000 835,984 Massachusetts Development Finance Agency Rev. (Ogden Haverhill Associates), "A", 6.7%, 2014 700,000 764,141 Massachusetts Industrial Finance Agency, Resource Recovery Rev. (Ogden Haverhill Associates), "A", 5.6%, 2019 1,000,000 1,040,910 ---------------- $ 3,162,470 - --------------------------------------------------------------------------------------------------------- State & Agency - Other - 0.8% - --------------------------------------------------------------------------------------------------------- Massachusetts Development Finance Agency (Visual & Performing Arts), 6%, 2021 $ 1,000,000 $ 1,206,960 State of Michigan, COP, AMBAC, 5.5%, 2010 (c) 1,250,000 1,333,313 ---------------- $ 2,540,273 - --------------------------------------------------------------------------------------------------------- State & Local Agencies - 5.0% - --------------------------------------------------------------------------------------------------------- Alabama Building Renovation Authority, AMBAC, 6%, 2018 $ 760,000 $ 821,416 Alabama Public School & College, Capital Improvement, "D", 6%, 2015 2,850,000 3,071,445 Chicago, IL, Public Building Commission Rev., RITES, FGIC, 9.159%, 2016 (v)(z) 1,500,000 1,850,190 Chicago, IL, Public Building Commission Rev., RITES, FGIC, 9.159%, 2017 (v)(z) 1,250,000 1,557,675 Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Enhanced, "A", 5%, 2045 325,000 333,538 Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Enhanced, "B", 5.375%, 2010 (c) 1,500,000 1,593,600 Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Enhanced, "B", 5.5%, 2013 (c) 1,075,000 1,193,573 Indianapolis, IN, Public Improvement Bond Bank, "C", AMBAC, 6%, 2017 500,000 539,870 New Jersey Transportation Trust Fund Authority, Capital Appreciation Transportation Systems, "C", AMBAC, 0%, 2028 1,115,000 415,215 New York Urban Development Corp., Correctional Facilities Service Contract C, AMBAC, 5.875%, 2009 (c) 1,000,000 1,060,640 Stafford, TX, Economic Development Corp., FGIC, 6%, 2015 525,000 609,420 Virginia College Building Authority, VA, Public Higher Education Financing, "A", 5.75%, 2009 (c) 2,295,000 2,431,966 ---------------- $ 15,478,548 - --------------------------------------------------------------------------------------------------------- Student Loan Revenue - 0.9% - --------------------------------------------------------------------------------------------------------- Access to Loans for Learning, California Student Loan Rev., 7.95%, 2030 $ 650,000 $ 689,436 Arizona Student Loan Acquisition Authority Rev., 5.8%, 2016 675,000 716,499 Arizona Student Loan Acquisition Authority Rev., 5.85%, 2017 700,000 743,407 Massachusetts Educational Financing Authority, Refunding Issue G, "A", MBIA, 6.1%, 2018 505,000 518,918 ---------------- $ 2,668,260 - --------------------------------------------------------------------------------------------------------- Tax - Other - 1.1% - --------------------------------------------------------------------------------------------------------- New Jersey Economic Development Authority Rev. Cigarette Tax, 5.5%, 2024 $ 250,000 $ 263,010 New Jersey Economic Development Authority Rev. Cigarette Tax, 5.75%, 2029 450,000 484,745 New Jersey Economic Development Authority Rev. Cigarette Tax, 5.5%, 2031 200,000 211,292 New Jersey Economic Development Authority Rev. Cigarette Tax, 5.75%, 2034 300,000 321,552 New York, NY, Transitional Finance Authority Rev., Future Tax Secured, "A", 6%, 2009 (c) 2,000,000 2,154,840 ---------------- $ 3,435,439 - --------------------------------------------------------------------------------------------------------- Tax Assessment - 2.1% - --------------------------------------------------------------------------------------------------------- Allegheny County, PA, Redevelopment Authority Rev. (Pittsburgh Mills), 5.1%, 2014 $ 75,000 $ 77,084 Allegheny County, PA, Redevelopment Authority Rev. (Pittsburgh Mills), 5.6%, 2023 50,000 52,835 Broadview, IL, Tax Increment Rev., 5.25%, 2012 1,000,000 1,026,860 Fishhawk Community Development District, FL, 5.125%, 2009 265,000 265,647 Greyhawk Landing Community Development, FL, Special Assessment, "B", 6.25%, 2009 100,000 101,318 Katy, TX, Development Authority Rev., 5.8%, 2011 780,000 803,704 Katy, TX, Development Authority Rev., "B", 6%, 2018 1,200,000 1,241,496 Killarney, FL, Community Development District, Special Assessment, "B", 5.125%, 2009 205,000 205,338 Lakes by the Bay South Community Development District, FL, Rev., "B", 5.3%, 2009 255,000 255,658 Lancaster County, SC, Assessment Rev. (Sun City Carolina Lakes), 5.45%, 2037 50,000 50,773 Noblesville, IN, Redevelopment Authority Lease Rental, 5.25%, 2025 455,000 484,807 Panther Trace II, Community Development District, FL, Special Assessment, "B", 5%, 2010 655,000 655,059 Parkway Center, Community Development District, FL, Special Assessment, "B", 5.625%, 2014 935,000 954,831 Preserve at Wilderness Lake, FL, Community Development District, Capital Improvement, "B", 5%, 2009 110,000 110,341 Renaissance Community Development District, FL, Special Assessment, "B", 6.25%, 2008 120,000 120,884 Tuscany Reserve Community Development District, FL, Special Assessment, "B", 5.25%, 2016 185,000 189,375 ---------------- $ 6,596,010 - --------------------------------------------------------------------------------------------------------- Tobacco - 2.0% - --------------------------------------------------------------------------------------------------------- Badger, WI, Tobacco Asset Securitization Corp., 6.125%, 2027 $ 1,015,000 $ 1,085,827 California County, CA, Tobacco Securitization Agency, Capital Appreciation Asset Backed (Gold Country), 0%, 2033 1,655,000 361,071 Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, "A", 0%, 2050 4,000,000 266,680 Children's Trust Fund, Tobacco Settlement Rev., Puerto Rico, "B", 0%, 2055 2,000,000 70,340 District of Columbia, Tobacco Settlement Capital Appreciation, "A", 0%, 2046 2,215,000 197,046 District of Columbia, Tobacco Settlement, 6.25%, 2024 385,000 409,625 Guam Economic Development Authority, 5%, 2022 115,000 115,308 Iowa Tobacco Settlement Authority, Tobacco Settlement Rev., Asset Backed, "B", 5.3%, 2011 (c) 750,000 798,578 Iowa Tobacco Settlement Authority, Tobacco Settlement Rev., Asset Backed, "B", 0% to 2007, 5.6% to 2034 615,000 597,208 Louisiana Tobacco Settlement Authority, 5.5%, 2030 415,000 434,219 New Jersey Tobacco Settlement Authority, 5.75%, 2032 660,000 693,878 Northern Tobacco Securitization Corp., AK, Asset Backed, "A", 5%, 2046 455,000 453,621 South Carolina Tobacco Settlement Authority, 6.375%, 2028 500,000 536,680 Washington Tobacco Settlement Authority, 6.5% to 2026 70,000 76,871 ---------------- $ 6,096,952 - --------------------------------------------------------------------------------------------------------- Toll Roads - 0.5% - --------------------------------------------------------------------------------------------------------- New Jersey Turnpike Authority Rev., Unrefunded, "C", MBIA, 6.5%, 2016 $ 235,000 $ 274,306 New Jersey Turnpike Authority Rev., "C", MBIA, ETM, 6.5%, 2016 (c) 80,000 93,728 Northwest Parkway Public Highway Authority Co. Rev., Capital Appreciation, "B", AMBAC, 0%, 2018 750,000 422,858 San Joaquin Hills, CA, Transportation Corridor Agency, Toll Road Rev., ETM, 0%, 2009 (c) 1,000,000 921,710 ---------------- $ 1,712,602 - --------------------------------------------------------------------------------------------------------- Transportation - Special Tax - 1.4% - --------------------------------------------------------------------------------------------------------- Allegheny County, PA, Port Authority Special Rev., MBIA, 6.25%, 2009 (c) $ 1,000,000 $ 1,071,670 New Jersey Economic Development Authority Rev., Transportation Project Sublease, "A", FSA, 6%, 2009 (c) 325,000 344,666 Pennsylvania Turnpike Commission Oil, "A", AMBAC, 5.25%, 2018 850,000 886,338 Pennsylvania Turnpike Commission Oil, "A", AMBAC, ETM, 5.25%, 2018 (c) 1,150,000 1,191,872 Utah Tranauth Sales Tax Rev., "C", 5.25%, 2029 810,000 943,059 ---------------- $ 4,437,605 - --------------------------------------------------------------------------------------------------------- Universities - Colleges - 4.2% - --------------------------------------------------------------------------------------------------------- Alabama Private Colleges & Universities, Facilities Authority Rev. (Tuskegee University), ASSD GTY, 4.75%, 2026 $ 1,000,000 $ 1,023,590 Amherst, NY, Industrial Development Agency Rev. (Daemen College), "A", 6%, 2011 (c) 1,000,000 1,120,120 Arkansas Technical University Rev., Housing Systems, "N", AMBAC, 5%, 2036 165,000 173,484 California Educational Facilities Authority Rev. (L.A. College of Chiropractic), 5.6%, 2017 250,000 246,423 Houston, TX, Community College Systems, MBIA, 7.875%, 2025 1,650,000 1,981,106 Illinois Finance Authority Rev. (University of Chicago), "A", 5%, 2034 215,000 224,232 Massachusetts Development Finance Agency Rev. (Boston University), XLCA, 6%, 2059 1,250,000 1,539,188 Massachusetts Development Finance Agency Rev. (Massachusetts College of Pharmacy), "B", 6.625%, 2010 (c) 100,000 110,255 Massachusetts Development Finance Agency Rev. (Olin College), "B", XLCA, 5.25%, 2033 2,000,000 2,131,720 Northern Illinois University Rev., Auxiliary Facilities Systems, AMBAC, 5.875%, 2018 1,370,000 1,444,309 Oregon Facilities Authority Rev. (Linfield College), "A", 5%, 2030 165,000 169,693 Savannah, GA, Economic Development Authority Rev. (College of Art & Design, Inc.), 6.5%, 2009 (c) 500,000 547,220 St. Joseph County, IN, Educational Facilities Rev. (University of Notre Dame), 6.5%, 2026 1,000,000 1,314,250 Upland, IN, Economic Development Rev. (Taylor University), 6%, 2018 435,000 483,590 Upland, IN, Economic Development Rev. (Taylor University), 6.25%, 2023 520,000 577,018 ---------------- $ 13,086,198 - --------------------------------------------------------------------------------------------------------- Universities - Secondary Schools - 1.8% - --------------------------------------------------------------------------------------------------------- California Statewide Communities, Development Authority Rev. (Escondido Charter High School), 7.5%, 2011 (c) $ 500,000 $ 595,030 Clark County, NV, Economic Development Rev. (Alexander Dawson School), 5.5%, 2009 (c) 1,500,000 1,585,245 Maine Finance Authority, Educational Rev. (Waynflete School), 6.4%, 2019 1,000,000 1,064,650 Maine Finance Authority, Educational Rev. (Waynflete School), 6.5%, 2029 1,000,000 1,068,110 Michigan Municipal Bond Authority Rev. (YMCA Service Learning Academy), 7.625%, 2021 400,000 425,620 New Hampshire Health & Education (Derryfield School), 6.5%, 2010 205,000 212,341 Pima County, AZ, Industrial Development Authority Education Rev. (Arizona Charter Schools), "C", 6.75%, 2031 500,000 522,985 ---------------- $ 5,473,981 - --------------------------------------------------------------------------------------------------------- Utilities - Cogeneration - 0.2% - --------------------------------------------------------------------------------------------------------- Carbon County, PA, Industrial Development Authority Rev. (Panther Creek Partners), 6.65%, 2010 $ 550,000 $ 575,031 - --------------------------------------------------------------------------------------------------------- Utilities - Investor Owned - 5.0% - --------------------------------------------------------------------------------------------------------- Apache County, AZ, Industrial Development Authority, Pollution Control Rev. (Tucson Electric Power Co.), 5.875%, 2033 $ 1,000,000 $ 1,005,740 Brazos River Authority, TX, Pollution Control Rev. (Texas Utility Co.), "B", 6.3%, 2032 120,000 130,679 California Pollution Control Financing Authority, Pollution Control Rev. (Pacific Gas & Electric Co.), MBIA, 5.35%, 2016 1,600,000 1,724,400 Clark County, NV, Industrial Development Rev. (Southwest Gas Corp.), "A", AMBAC, 4.85%, 2035 730,000 740,629 Connecticut Development Authority, Pollution Control Rev. (Connecticut Light & Power Co.), 5.85%, 2028 1,000,000 1,052,770 Farmington, NM, Pollution Control Rev. (New Mexico Public Service), 5.8%, 2022 500,000 505,860 Farmington, NM, Pollution Control Rev. (New Mexico Public Service), 6.375%, 2022 1,000,000 1,031,110 Farmington, NM, Pollution Control Rev. (New Mexico Public Service), "A", 6.3%, 2016 565,000 578,464 Lehigh County, PA, Industrial Development Authority Pollution Control Rev. (PPL Electric Utilities Corp.), "A", FGIC, 4.7%, 2029 320,000 328,259 Matagorda County, TX, Pollution Control Rev. (Reliant Energy), 5.95%, 2030 750,000 771,210 Mecklenburg County, VA, Industrial Development Authority Rev. (UAE Mecklenburg LP), 6.5%, 2017 700,000 772,821 New Hampshire Industrial Development Authority, Pollution Control Rev. (Connecticut Light & Power), 5.9%, 2016 500,000 508,230 Pima County, AZ, Industrial Development Authority Rev. (Tucson Electric Power Co.), "A", 6.1%, 2025 2,000,000 2,012,880 Pittsylvania County, VA, Industrial Development Authority Rev., 7.5%, 2014 2,000,000 2,017,720 Port Morrow, OR, Pollution Control Rev. (Portland General Electric), 5.2%, 2033 350,000 360,773 Sabine River Authority, TX, Pollution Control Rev. (TXU Electric Co.), "A", 5.5%, 2022 500,000 527,230 West Feliciana Parish, LA, Pollution Control Rev. (Entergy Gulf States), 6.6%, 2028 1,665,000 1,671,926 ---------------- $ 15,740,701 - --------------------------------------------------------------------------------------------------------- Utilities - Municipal Owned - 6.4% - --------------------------------------------------------------------------------------------------------- Austin, TX, Utility Systems Rev., AMBAC, 6.75%, 2011 $ 1,500,000 $ 1,707,555 California Department of Water Resources Power Supply Rev., "A", 5.125%, 2012 (c) 750,000 817,800 Easley, SC, Utility Rev., Refunding & Improvement, FSA, 5%, 2034 320,000 338,032 Georgia Municipal Electric Power Authority Rev., MBIA, 6.375%, 2016 2,000,000 2,387,720 Georgia Municipal Electric Power Authority Rev., MBIA, 6.5%, 2020 7,350,000 8,926,575 North Carolina Municipal Power Agency, Catawba Electric Rev., 6.375%, 2013 750,000 815,445 North Carolina Municipal Power Agency, Catawba Electric Rev., MBIA, 7%, 2007 3,250,000 3,276,683 North Carolina Municipal Power Agency, ROLS, MBIA, 7.026%, 2019 (v)(z) 1,500,000 1,725,720 ---------------- $ 19,995,530 - --------------------------------------------------------------------------------------------------------- Water & Sewer Utility Revenue - 4.8% - --------------------------------------------------------------------------------------------------------- Atlanta, GA, Water & Wastewater Rev., RITES, FGIC, 7.025%, 2016 (v)(z) $ 1,000,000 $ 1,262,660 Forsyth County, GA, Water & Sewage Authority, 6.25%, 2010 (c) 1,170,000 1,281,606 Magnolia, TX, Water & Sewer System Rev., 5.15%, 2031 140,000 143,431 Massachusetts Water Resources Authority, 6.5%, 2019 5,965,000 7,160,565 Mississippi Development Bank Special Obligations, Grenada, MS, Water & Sewer Systems Project, "N", FSA, 5%, 2030 490,000 515,887 New York Environmental Facilities, 5%, 2016 430,000 443,850 New York Environmental Facilities, ETM, 5%, 2016 (c) 570,000 586,741 Pittsburgh, PA, Water & Sewer Authority Rev., "C", FSA, 5.25%, 2022 2,000,000 2,046,800 Spartanburg, SC, Water & Sewer Authority Rev., "B", MBIA, 5.25%, 2030 255,000 273,901 West Virginia Water Development Authority Loan Program, "B", AMBAC, 4.75%, 2035 110,000 112,439 West Wilson Utility District, TN, Waterworks Rev., MBIA, 5.25%, 2030 480,000 514,637 Westmoreland County, PA, Municipal Authority Services Rev., FSA, 5.25%, 2026 520,000 564,845 ---------------- $ 14,907,362 - --------------------------------------------------------------------------------------------------------- TOTAL MUNICIPAL BONDS (IDENTIFIED COST, $285,814,162) $ 306,282,057 - --------------------------------------------------------------------------------------------------------- Floating Rate Demand Notes - 0.4% - --------------------------------------------------------------------------------------------------------- Chicago, IL, Midway Airport Rev., Second Lien, "A", 3.95%, due 10/02/06 $ 200,000 $ 200,000 Chicago, IL, Midway Airport Rev., Second Lien, "B", 3.95%, due 10/02/06 900,000 900,000 Georgia Municipal Electric Authority Rev., 3.76%, due 10/04/06 100,000 100,000 Jefferson County, AL, Sewer Rev., Warrants Rev., "B-4", 3.78%, due 10/05/06 100,000 100,000 - --------------------------------------------------------------------------------------------------------- TOTAL FLOATING RATE DEMAND NOTES, AT IDENTIFIED COST $ 1,300,000 - --------------------------------------------------------------------------------------------------------- TOTAL INVESTMENTS (IDENTIFIED COST, $287,114,162) (k) $ 307,582,057 - --------------------------------------------------------------------------------------------------------- Other Assets, Less Liabilities - 1.2% 3,707,003 - --------------------------------------------------------------------------------------------------------- NET ASSETS - 100.0% $ 311,289,060 - --------------------------------------------------------------------------------------------------------- SWAP AGREEMENTS AT 9/30/06 UNREALIZED NOTIONAL CASH FLOWS CASH FLOWS APPRECIATION EXPIRATION AMOUNT COUNTERPARTY TO RECEIVE TO PAY (DEPRECIATION) - ------------------------------------------------------------------------------------------------------------------------ INTEREST RATE SWAPS 12/01/07 USD 6,000,000 Merrill Lynch 7-Day BMA 2.795% (fixed rate) $51,650 ------- At September 30, 2006, the fund had sufficient cash and/or securities to cover any commitments under these derivative contracts. (c) Refunded bond. (d) Non-income producing security - in default. (k) As of September 30, 2006 the fund held securities fair valued in accordance with the policies adopted by the Board of Trustees, aggregating $306,282,057 and 99.58% of market value. All of these security values were provided by an independent pricing service using an evaluated bid. (n) Securities exempt from registration under Rule 144A of the Securities Act of 1933. These securities may be sold in the ordinary course of business in transactions exempt from registration, normally to qualified institutional buyers. At period end, the aggregate value of these securities was $6,799,286, representing 2.2% of net assets. (v) Inverse floating rate security. (z) Restricted securities (excluding 144A issues) are not registered under the Securities Act of 1933 and are subject to legal or contractual restrictions on resale. These securities generally may be resold in transactions exempt from registration or to the public if the securities are 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 - ----------------------------------------------------------------------------------------------------------------- Atlanta, GA, Water & Wastewater Rev., RITES, FGIC, 7.025%, 2016 4/20/1999 $1,167,100 $1,262,660 Chicago, IL O'Hare International Airport Rev., RITES, FSA, 7.476%, 2022 8/21/2003 1,599,510 1,803,265 Chicago, IL, Public Building Commission Rev., RITES, FGIC, 9.159%, 2016 3/10/1999 1,619,550 1,850,190 Chicago, IL, Public Building Commission Rev., RITES, FGIC, 9.159%, 2017 3/10/1999 1,337,550 1,557,675 Commonwealth of Puerto Rico, ROLS, FGIC, 7.553%, 2015 8/05/2002 3,878,760 3,804,780 Dudley-Charlton, MA, Regional School District, RITES, FGIC, 6.545%, 2013 5/05/1999 1,615,946 1,864,624 Houston, TX, Independent School District, RITES, 6.525%, 2017 2/26/1999 2,440,832 2,502,537 North Carolina Municipal Power Agency, ROLS, MBIA, 7.026%, 2019 3/03/2003 1,717,980 1,725,720 - ----------------------------------------------------------------------------------------------------------------- Total Restricted Securities $16,371,451 5.3% - ----------------------------------------------------------------------------------------------------------------- The following abbreviations are used in this report and are defined: BMA Bond Market Assn. COP Certificate of Participation ETM Escrowed to Maturity Insurers Inverse Floaters - -------------------------------------------------------------------------------------------------------- AMBAC AMBAC Indemnity Corp. RIBS Residual Interest Bonds ASSD GTY Assured Guaranty Insurance Co. RITES Residual Interest Tax-Exempt Security CIFG CDC IXIS Financial Guaranty ROLS Reset Option Longs FGIC Financial Guaranty Insurance Co. FHA Federal Housing Administration FNMA Federal National Mortgage Assn. FSA Financial Security Assurance, Inc. GNMA Government National Mortgage Assn. MBIA MBIA Insurance Corp. PSF Permanent School Fund XLCA XL Capital Insurance Co. SEE NOTES TO FINANCIAL STATEMENTS Financial Statements STATEMENT OF ASSETS AND LIABILITIES At 9/30/06 (unaudited) 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 (identified cost, $287,114,162) $307,582,057 Cash 19,196 Receivable for investments sold 292,475 Receivable for fund shares sold 802,649 Interest receivable 4,466,790 Unrealized appreciation on interest rate swap agreements 51,650 Other assets 926 - ------------------------------------------------------------------------------------------------------ Total assets $313,215,743 - ------------------------------------------------------------------------------------------------------ LIABILITIES - ------------------------------------------------------------------------------------------------------ Distributions payable $498,242 Payable for investments purchased 933,436 Payable for fund shares reacquired 333,788 Payable to affiliates Management fee 7,651 Shareholder servicing costs 7,208 Distribution and service fees 10,461 Administrative services fee 518 Payable for independent trustees' compensation 31,067 Accrued expenses and other liabilities 104,312 - ------------------------------------------------------------------------------------------------------ Total liabilities $1,926,683 - ------------------------------------------------------------------------------------------------------ Net assets $311,289,060 - ------------------------------------------------------------------------------------------------------ NET ASSETS CONSIST OF - ------------------------------------------------------------------------------------------------------ Paid-in capital $294,529,113 Unrealized appreciation (depreciation) on investments 20,519,545 Accumulated net realized gain (loss) on investments (3,710,386) Accumulated distributions in excess of net investment income (49,212) - ------------------------------------------------------------------------------------------------------ Net assets $311,289,060 - ------------------------------------------------------------------------------------------------------ Shares of beneficial interest outstanding 36,183,858 - ------------------------------------------------------------------------------------------------------ Statement of Assets and Liabilities (unaudited) - continued Class A shares - ------------------------------------------------------------------------------------------------------ Net assets $244,820,817 Shares outstanding 28,476,172 - ------------------------------------------------------------------------------------------------------ Net asset value per share $8.60 - ------------------------------------------------------------------------------------------------------ Offering price per share (100/95.25Xnet asset value per share) $9.03 - ------------------------------------------------------------------------------------------------------ Class B shares - ------------------------------------------------------------------------------------------------------ Net assets $31,172,882 Shares outstanding 3,620,465 - ------------------------------------------------------------------------------------------------------ Net asset value and offering price per share $8.61 - ------------------------------------------------------------------------------------------------------ Class C shares - ------------------------------------------------------------------------------------------------------ Net assets $35,295,361 Shares outstanding 4,087,221 - ------------------------------------------------------------------------------------------------------ Net asset value and offering price per share $8.64 - ------------------------------------------------------------------------------------------------------ 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 Six months ended 9/30/06 (unaudited) 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 $8,557,629 - ------------------------------------------------------------------------------------------------------ Expenses Management fee $850,323 Distribution and service fees 642,734 Shareholder servicing costs 195,256 Administrative services fee 32,736 Independent trustees' compensation 6,887 Custodian fee 68,306 Shareholder communications 19,193 Auditing fees 22,470 Legal fees 4,036 Miscellaneous 49,538 - ------------------------------------------------------------------------------------------------------ Total expenses $1,891,479 - ------------------------------------------------------------------------------------------------------ Fees paid indirectly (10,655) Reduction of expenses by investment adviser (387,303) - ------------------------------------------------------------------------------------------------------ Net expenses $1,493,521 - ------------------------------------------------------------------------------------------------------ Net investment income $7,064,108 - ------------------------------------------------------------------------------------------------------ REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS - ------------------------------------------------------------------------------------------------------ Realized gain (loss) (identified cost basis) Investment transactions $(79,257) Swap transactions 88,204 - ------------------------------------------------------------------------------------------------------ Net realized gain (loss) on investments $8,947 - ------------------------------------------------------------------------------------------------------ Change in unrealized appreciation (depreciation) Investments $2,696,571 - ------------------------------------------------------------------------------------------------------ Swap transactions (177,905) - ------------------------------------------------------------------------------------------------------ Net unrealized gain (loss) on investments $2,518,666 - ------------------------------------------------------------------------------------------------------ Net realized and unrealized gain (loss) on investments $2,527,613 - ------------------------------------------------------------------------------------------------------ Change in net assets from operations $9,591,721 - ------------------------------------------------------------------------------------------------------ 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. SIX MONTHS ENDED YEAR ENDED 9/30/06 3/31/06 (UNAUDITED) CHANGE IN NET ASSETS FROM OPERATIONS - ------------------------------------------------------------------------------------------------------ Net investment income $7,064,108 $14,460,172 Net realized gain (loss) on investments 8,947 629,325 Net unrealized gain (loss) on investments 2,518,666 (2,743,791) - ------------------------------------------------------------------------------------------------------ Change in net assets from operations $9,591,721 $12,345,706 - ------------------------------------------------------------------------------------------------------ DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------ From net investment income Class A $(5,647,722) $(11,422,176) Class B (659,810) (1,578,544) Class C (679,762) (1,359,481) - ------------------------------------------------------------------------------------------------------ Total distributions declared to shareholders $(6,987,294) $(14,360,201) - ------------------------------------------------------------------------------------------------------ Change in net assets from fund share transactions $(2,897,582) $(6,094,125) - ------------------------------------------------------------------------------------------------------ Total change in net assets $(293,155) $(8,108,620) - ------------------------------------------------------------------------------------------------------ NET ASSETS - ------------------------------------------------------------------------------------------------------ At beginning of period 311,582,215 319,690,835 At end of period (including accumulated distributions in excess of net investment income of $49,212 and $126,026, respectively) $311,289,060 $311,582,215 - ------------------------------------------------------------------------------------------------------ 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 semiannual period and the past 5 fiscal 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. SIX MONTHS YEARS ENDED 3/31 ENDED ----------------------------------------------------------------------- CLASS A 9/30/06 2006 2005 2004 2003 2002 (UNAUDITED) Net asset value, beginning of period $8.53 $8.58 $8.70 $8.54 $8.32 $8.54 - ------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.20 $0.41 $0.42 $0.41 $0.41 $0.44 Net realized and unrealized gain (loss) on investments 0.07 (0.06) (0.13) 0.17 0.25 (0.20) - ------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.27 $0.35 $0.29 $0.58 $0.66 $0.24 - ------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.20) $(0.40) $(0.41) $(0.42) $(0.44) $(0.46) - ------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $8.60 $8.53 $8.58 $8.70 $8.54 $8.32 - ------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 3.21(n) 4.18 3.49 6.94 8.00 2.78 - ------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.06(a) 1.06 1.04 1.04 1.05 1.15 Expenses after expense reductions (f) 0.81(a) 0.81 0.79 0.88 0.90 0.91 Net investment income 4.73(a) 4.71 4.90 4.80 4.85 5.12 Portfolio turnover 4 9 8 9 13 15 Net assets at end of period (000 omitted) $244,821 $240,212 $241,850 $264,797 $274,442 $276,719 - ------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued SIX MONTHS YEARS ENDED 3/31 ENDED -------------------------------------------------------------------- CLASS B 9/30/06 2006 2005 2004 2003 2002 (UNAUDITED) Net asset value, beginning of period $8.54 $8.59 $8.72 $8.55 $8.33 $8.55 - ------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.17 $0.34 $0.36 $0.35 $0.35 $0.37 Net realized and unrealized gain (loss) on investments 0.07 (0.05) (0.14) 0.18 0.24 (0.20) - ------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.24 $0.29 $0.22 $0.53 $0.59 $0.17 - ------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.17) $(0.34) $(0.35) $(0.36) $(0.37) $(0.39) - ------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $8.61 $8.54 $8.59 $8.72 $8.55 $8.33 - ------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.83(n) 3.40 2.60 6.27 7.19 2.00 - ------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.81(a) 1.81 1.79 1.79 1.80 1.90 Expenses after expense reductions (f) 1.56(a) 1.56 1.54 1.63 1.65 1.66 Net investment income 3.99(a) 3.96 4.15 4.05 4.10 4.37 Portfolio turnover 4 9 8 9 13 15 Net assets at end of period (000 omitted) $31,173 $36,752 $43,930 $52,594 $59,591 $61,627 - ------------------------------------------------------------------------------------------------------------------------------- SEE NOTES TO FINANCIAL STATEMENTS Financial Highlights - continued SIX MONTHS YEARS ENDED 3/31 ENDED -------------------------------------------------------------------- CLASS C 9/30/06 2006 2005 2004 2003 2002 (UNAUDITED) Net asset value, beginning of period $8.56 $8.61 $8.73 $8.56 $8.34 $8.56 - ------------------------------------------------------------------------------------------------------------------------------- INCOME (LOSS) FROM INVESTMENT OPERATIONS - ------------------------------------------------------------------------------------------------------------------------------- Net investment income (d) $0.17 $0.35 $0.36 $0.35 $0.35 $0.37 Net realized and unrealized gain (loss) on investments 0.08 (0.06) (0.13) 0.18 0.24 (0.20) - ------------------------------------------------------------------------------------------------------------------------------- Total from investment operations $0.25 $0.29 $0.23 $0.53 $0.59 $0.17 - ------------------------------------------------------------------------------------------------------------------------------- LESS DISTRIBUTIONS DECLARED TO SHAREHOLDERS - ------------------------------------------------------------------------------------------------------------------------------- From net investment income $(0.17) $(0.34) $(0.35) $(0.36) $(0.37) $(0.39) - ------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $8.64 $8.56 $8.61 $8.73 $8.56 $8.34 - ------------------------------------------------------------------------------------------------------------------------------- Total return (%) (r)(s)(t) 2.94(n) 3.41 2.72 6.27 7.18 2.00 - ------------------------------------------------------------------------------------------------------------------------------- RATIOS (%) (TO AVERAGE NET ASSETS) AND SUPPLEMENTAL DATA: - ------------------------------------------------------------------------------------------------------------------------------- Expenses before expense reductions (f) 1.81(a) 1.81 1.79 1.79 1.80 1.90 Expenses after expense reductions (f) 1.56(a) 1.56 1.54 1.63 1.65 1.66 Net investment income 4.01(a) 4.09 4.15 4.05 4.10 4.37 Portfolio turnover 4 9 8 9 13 15 Net assets at end of period (000 omitted) $35,295 $34,618 $33,911 $37,508 $39,420 $36,146 - ------------------------------------------------------------------------------------------------------------------------------- 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. (f) Ratios do not reflect reductions from fees paid indirectly. (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 (unaudited) (1) BUSINESS AND ORGANIZATION MFS Municipal Income Fund (the fund) is a series of MFS Municipal Series Trust (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. Municipal securities backed by current or anticipated revenues from a specific project or specific assets can be negatively affected by the discontinuance of the taxation supporting the projects or assets or the inability to collect revenues for the project or from the assets. If the Internal Revenue Service determines an issuer of a municipal security has not complied with applicable tax requirements, the security could decline in value, interest from the security could become taxable and the fund may be required to issue Forms 1099-DIV. INVESTMENT VALUATIONS - Debt instruments (other than short-term instruments), including restricted debt instruments, are generally valued at an evaluated or composite bid as reported by an independent pricing service. Values of debt instruments 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. Short-term instruments with a maturity at issuance of 60 days or less may be valued at amortized cost, which approximates market value. Swaps are generally valued at a broker-dealer bid quotation. 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 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. These investments are generally valued at fair value based on information from independent pricing services. 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 on the fund's financial statements. 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 swap agreements. SWAP AGREEMENTS - The fund may enter into swap agreements. A swap is an exchange of cash payments between the fund and another party. Net cash payments are exchanged at specified intervals and are recorded as a realized gain or loss in the Statement of Operations. The value of the swap is adjusted daily and the change in value, including accruals of periodic amounts of interest to be paid or received, is recorded as unrealized appreciation or depreciation in the Statement of Operations. A liquidation payment received or made upon early termination is recorded as a realized gain or loss in the Statement of Operations. Collateral, in the form of cash or securities, may be required to be held in segregated accounts with the fund's custodian in connection with these agreements. Risk of loss may exceed amounts recognized on the Statement of Assets and Liabilities. These risks include the possible lack of a liquid market, failure of the counterparty to perform under the terms of the agreements, and unfavorable market movement of the underlying instrument. All swap agreements entered into by the fund with the same counterparty are generally governed by a single master agreement, which provides for the netting of all amounts owed by the parties under the agreement upon the occurrence of an event of default, thereby reducing the credit risk to which such party is exposed. INTEREST RATE SWAP AGREEMENTS - Interest rate swap agreements involve the periodic exchange of cash flows, such as the exchange of fixed rate interest payments for floating rate interest payments based on a notional principal amount. The interest rates may be based on a specific financial index or the exchange of two distinct floating rate payments. The fund may enter into an interest rate swap in order to manage its exposure to interest fluctuations. 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 premium and original issue discount is amortized or accreted for tax reporting purposes as required by federal income tax regulations. The fund may receive proceeds from litigation settlements involving its portfolio holdings. Any proceeds received are reflected in realized gain/loss in the Statement of Operations, or in unrealized gain/loss if the security is still held by the fund. Legal fees and other related expenses incurred to preserve and protect the value of a security owned are added to the cost of the security; other legal fees are expensed. Capital infusions made directly to the security issuer, which are generally non-recurring, incurred to protect or enhance the value of high- yield debt securities, are reported as additions to the cost basis of the security. Costs that are incurred to negotiate the terms or conditions of capital infusions or that are expected to result in a plan of reorganization are reported as realized losses. Ongoing costs incurred to protect or enhance an investment, or costs incurred to pursue other claims or legal actions, are expensed. 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 six months ended September 30, 2006, 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 and tax-exempt income, including realized capital gains. Accordingly, no provision for federal income tax is required in the 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 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 amortization and accretion of debt securities. The tax character of distributions made during the current period will be determined at fiscal year end. The tax character of distributions declared to shareholders is as follows: 3/31/06 3/31/05 Ordinary income (including any short-term capital gains) $-- $27,254 Tax-exempt income 14,360,201 15,355,366 - --------------------------------------------------------------------------------------------------------- Total distributions $14,360,201 $15,382,620 - --------------------------------------------------------------------------------------------------------- The federal tax cost and the tax basis components of distributable earnings were as follows: AS OF 9/30/06 Cost of investments $286,623,352 ---------------------------------------------------------- Gross appreciation $24,218,758 Gross depreciation (3,260,053) ---------------------------------------------------------- Net unrealized appreciation (depreciation) $20,958,705 ---------------------------------------------------------- AS OF 3/31/06 Undistributed tax-exempt income 1,078,782 Capital loss carryforwards (4,190,232) Other temporary differences (977,077) Net unrealized appreciation (depreciation) 18,244,047 The aggregate cost above includes prior fiscal year end tax adjustments. As of March 31, 2006, the fund had capital loss carryforwards available to offset future realized gains. Such losses expire as follows: 3/31/11 $(104,559) 3/31/12 (4,085,673) ---------------------------------------------------------- $(4,190,232) 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. 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 is evaluating the application of the Interpretation to the fund's, and has not at this time determined the impact, if any, 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 shares will convert to Class A shares approximately eight years after purchase. (3) TRANSACTIONS WITH AFFILIATES INVESTMENT ADVISER - The fund has an investment advisory agreement with Massachusetts Financial Services Company (MFS) to provide overall investment 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 0.30% of the fund's average daily net assets for the period March 1, 2004 through February 28, 2009. For the six months ended September 30, 2006, this waiver amounted to $386,511 and is reflected as a reduction of total expenses in the Statement of Operations. The management fee incurred for the six months ended September 30, 2006 was equivalent to an annual effective rate of 0.30% of the fund's average daily net assets. DISTRIBUTOR - MFS Fund Distributors, Inc. (MFD), a wholly-owned subsidiary of MFS, as distributor, received $18,175 for the six months ended September 30, 2006, 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% 0.25% $301,103 Class B 0.75% 0.25% 1.00% 1.00% $167,240 Class C 0.75% 0.25% 1.00% 1.00% $174,391 - --------------------------------------------------------------------------------------------------------------------- Total Distribution and Service Fees $642,734 (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 six months ended September 30, 2006, based on each class' average daily net assets. 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. 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 six months ended September 30, 2006, were as follows: AMOUNT Class A $41,281 Class B $37,211 Class C $2,497 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 net assets of the fund as determined periodically under the supervision of the fund's Board of Trustees. For the six months ended September 30, 2006, the fee was $149,038, which equated to 0.0964% annually of the fund's average daily net assets. MFSC also receives payment from the fund for out-of-pocket and sub-accounting expenses paid by MFSC on behalf of the fund. For the six months ended September 30, 2006, these costs amounted to $9,745. The fund may also pay shareholder servicing related costs 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 calendar year average net assets. From July 1, 2005 through March 31, 2006, the fund's annual fixed amount was $10,000. Effective April 1, 2006, the fund's annual fixed amount is $17,500. The administrative services fee incurred for the six months ended September 30, 2006 was equivalent to an annual effective rate of 0.0212% of the fund's average daily net assets. 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 $1,462. This amount is included in Independent Trustees' compensation for the six months ended September 30, 2006. The deferred liability for retirement benefits payable to certain retired Trustees amounted to $29,676 at September 30, 2006, 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 six months ended September 30, 2006, the fee paid to Tarantino LLC was $793. MFS has agreed to reimburse the fund for a portion of the payments made by the funds to Tarantino LLC in the amount of $792, 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 $12,596,052 and $14,442,586, respectively. (5) SHARES OF BENEFICIAL INTEREST The fund 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: SIX MONTHS ENDED YEAR ENDED 9/30/06 3/31/06 SHARES AMOUNT SHARES AMOUNT Shares sold Class A 2,420,313 $20,576,802 3,325,237 $28,649,761 Class B 138,300 1,178,929 537,071 4,625,461 Class C 389,852 3,334,329 633,255 5,472,817 - ----------------------------------------------------------------------------------------------------------- 2,948,465 $25,090,060 4,495,563 $38,748,039 Shares issued to shareholders in reinvestment of distributions Class A 365,121 $3,110,738 734,629 $6,332,181 Class B 39,868 340,118 90,476 781,204 Class C 52,240 446,779 104,388 902,609 - ----------------------------------------------------------------------------------------------------------- 457,229 $3,897,635 929,493 $8,015,994 Shares reacquired Class A (2,484,138) $(21,133,649) (4,066,222) $(34,988,521) Class B (862,024) (7,343,732) (1,435,040) (12,389,239) Class C (398,709) (3,407,896) (634,387) (5,480,398) - ----------------------------------------------------------------------------------------------------------- (3,744,871) $(31,885,277) (6,135,649) $(52,858,158) Net change Class A 301,296 $2,553,891 (6,356) $(6,579) Class B (683,856) (5,824,685) (807,493) (6,982,574) Class C 43,383 373,212 103,256 895,028 - ----------------------------------------------------------------------------------------------------------- (339,177) $(2,897,582) (710,593) $(6,094,125) (6) LINE OF CREDIT The fund and other affiliated funds 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 affiliated funds 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 0.35%. 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 six months ended September 30, 2006, the fund's commitment fee and interest expense were $943 and $0, respectively, and are included in miscellaneous expense on the Statement of Operations. (7) CONCENTRATION OF CREDIT RISK At September 30, 2006, 41.5% of securities in the portfolio of investments are backed by letters of credit or bond insurance of various financial institutions and financial guaranty assurance agencies. The percentage of investments insured by or supported (backed) by a letter of credit from any one institution or agency did not exceed 14.5% of total investments. 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, 2006 ("contract review meetings") for the specific purpose of considering whether to approve the continuation of the investment advisory agreement for the Fund and the other investment companies that the Board oversees (the "MFS Funds"). The independent Trustees were assisted in their evaluation of the Fund's investment advisory agreement by independent legal counsel, from whom they received separate legal advice and with whom they met separately from MFS during various contract review meetings. The independent Trustees were also assisted in this process by the MFS Funds' Independent Chief Compliance Officer, a full-time senior officer appointed by and reporting to the independent Trustees. In connection with their deliberations regarding the continuation of the investment advisory agreement, the Trustees, including the independent Trustees, considered such information and factors as they believed, in light of the legal advice furnished to them and their own business judgment, to be relevant. The investment advisory agreement for the Fund was considered separately, although the Trustees also took into account the common interests of all MFS Funds in their review. As described below, the Trustees considered the nature, quality, and extent of the various investment advisory, administrative, and shareholder services performed by MFS under the existing investment advisory agreement and other arrangements with the Fund. In connection with their contract review meetings, the Trustees received and relied upon materials which included, among other items: (i) information provided by Lipper Inc. on the investment performance of the Fund for various time periods ended December 31, 2005 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 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, 2005, which the Trustees believed was a long enough period to reflect differing market conditions. The Fund's performance 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, 2005 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 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, the Fund's effective advisory fee rate (taking into account the advisory fee reduction) 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 which also serves other investment companies as well as other accounts. The Trustees also considered the nature, quality, cost, and extent of administrative, transfer agency, and distribution services provided to the Fund by MFS and its affiliates under agreements and plans other than the investment advisory agreement, including any 12b-1 fees the Fund pays to MFS Fund Distributors, Inc., an affiliate of MFS. The Trustees also considered the nature, extent and quality of certain other services MFS performs or arranges for on the Fund's behalf, 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, 2006. 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, 2006 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. 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 ITEM 2. CODE OF ETHICS. The Registrant has not amended any provision in its Code of Ethics (the "Code") that relates to any element of the Code's definition enumerated in paragraph (b) of Item 2 of this Form N-CSR. ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT. Not applicable for semi-annual reports. ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES. Not applicable for semi-annual reports. ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS. Not applicable to the Registrant. ITEM 6. SCHEDULE OF INVESTMENTS A schedule of investments for each series of the Registrant is included as part of the report to shareholders of such series under Item 1 of this Form N-CSR. ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES. Not applicable to the Registrant. ITEM 8. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES. Not applicable to the Registrant. ITEM 9. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT COMPANY AND AFFILIATED PURCHASERS. Not applicable to the Registrant. ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS. There were no material changes to the procedures by which shareholders may send recommendations to the Board for nominees to the Registrant's Board since the Registrant last provided disclosure as to such procedures in response to the requirements of Item 7(d)(2)(ii)(G) of Schedule 14A or this Item. ITEM 11. CONTROLS AND PROCEDURES. (a) Based upon their evaluation of the 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 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. (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 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 MUNICIPAL SERIES TRUST ------------------------------------------------------------------ By (Signature and Title)* MARIA F. DWYER ----------------------------------------------------- Maria F. Dwyer, President Date: November 21, 2006 ----------------- 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: November 21, 2006 ----------------- By (Signature and Title)* TRACY ATKINSON ----------------------------------------------------- Tracy Atkinson, Treasurer (Principal Financial Officer and Accounting Officer) Date: November 21, 2006 ----------------- * Print name and title of each signing officer under his or her signature.