MFS INVESTMENT GRADE MUNI TRUST N-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF

REGISTERED MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number 811-5785

MFS INVESTMENT GRADE MUNICIPAL 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: November 30

Date of reporting period: August 31, 2008

 


ITEM 1. SCHEDULE OF INVESTMENTS.


LOGO

 


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – 149.4%

     

Airport and Port Revenue – 0.2%

     

New York, NY, City Industrial Development Authority Rev. (Terminal One Group Assn.), 5.5%, 2021

   $ 250,000    $ 256,005

General Obligations – General Purpose – 5.5%

     

Chicago, IL (Emergency Telecommunications Systems), FGIC, 5.5%, 2023

   $ 1,000,000    $ 1,098,010

Chicago, IL, “A”, AMBAC, 6.25%, 2014

     1,480,000      1,700,875

Commonwealth of Puerto Rico, Public Improvement, “A”, 5%, 2030 (a)

     415,000      422,777

Highlands Ranch, CO, Metropolitan District, FSA, 6.5%, 2011

     650,000      718,283

Highlands Ranch, CO, Metropolitan District, ETM, FSA, 6.5%, 2011 (c)

     725,000      804,663

St. Clair County, IL, Capital Appreciation, FGIC, 0%, 2016 (f)

     2,000,000      1,426,380

State of California, 5.75%, 2019

     70,000      70,823
      $ 6,241,811

General Obligations – Improvement – 1.5%

     

St. Clair County, IL, Public Building Capital Appreciation, “B”, FGIC, 0%, 2013

   $ 2,000,000    $ 1,653,740

General Obligations - Schools – 6.0%

     

Modesto, CA, High School District (Stanislaus County), “A”, FGIC, 0%, 2019

   $ 1,350,000    $ 797,850

Pomona, CA, Unified School District, “A”, MBIA, 6.45%, 2022

     1,000,000      1,132,270

San Lorenzo, CA, Unified School District, Alameda County, Election 2004, “B”, FGIC, 4.75%, 2037

     640,000      624,250

St. Johns, MI, Public Schools, FGIC, 5.1%, 2025

     1,000,000      1,077,810

West Contra Costa, CA, Unified School District, “B”, MBIA, 6%, 2024

     250,000      281,413

Will County, IL, School District (Channahon), AMBAC, 8.5%, 2015

     1,400,000      1,835,848

Frenship, TX, Independent School District , FSA, 5%, 2033

     1,000,000      997,170
      $ 6,746,611

Healthcare Revenue – Hospitals – 30.1%

     

Allegheny County, PA, Hospital Development Authority Rev. (West Penn Allegheny Health), “A”, 5.375%, 2040

   $ 405,000    $ 282,678

Arizona Health Facilities Authority Rev. (Banner Health System), “D”, 5.5%, 2038

     535,000      523,765

Augusta County, VA, Industrial Development Authority (Augusta Health Care, Inc.), 5.25%, 2019

     1,000,000      1,043,300

Boone County, MO, Hospital Rev., (Boone Hospital Center), 5.375%, 2038

     135,000      128,728

Boone County, MO, Hospital Rev., (Boone Hospital Center), 5.625%, 2038

     120,000      118,878

Brunswick, GA, Hospital Authority Rev. (Glynn-Brunswick Memorial Hospital), 5.625%, 2034

     165,000      162,012

California Health Facilities Financing Authority Rev. (Catholic Healthcare West), “I”, 4.95%, 2026 (a)

     200,000      204,658

California Statewide Communities Development Authority Rev. (Catholic Healthcare West) “K”, ASSD GTY, 5.5%, 2041

     335,000      341,539

California Statewide Communities Development Authority Rev. (Children’s Hospital), 5%, 2047

     575,000      464,140

California Statewide Communities Development Authority Rev. (Enloe Medical Center), CHCLI, 5.75%, 2038

     360,000      360,796

California Statewide Communities Development Authority Rev. (St. Joseph Health System), “C”, FGIC, 5.75%, 2047

     490,000      504,029

Cass County, MO, Hospital Rev., 5.625%, 2038

     135,000      121,657

Colorado Health Facilities Authority Rev. (Poudre Valley Health Care, Inc.), “B”, FSA, 5.25%, 2036

     200,000      198,274

Colorado Health Facilities Authority Rev. (Poudre Valley Health Care, Inc.), “C”, FSA, 5.25%, 2040

     175,000      172,874

District of Columbia Hospital Rev. (Children’s Hospital Obligated Group), FSA, 5.25%, 2045

     370,000      360,561

Glendale, AZ, Industrial Development Authority (John C. Lincoln Health), 5%, 2042

     100,000      83,272

Health Care Authority for Baptist Health, AL, “D”, 5%, 2021

     850,000      799,672

Henderson, NV, Health Care Facilities Rev. (Catholic West), “A”, 6.75%, 2010 (c)

     440,000      480,058

 

1


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – continued

     

Healthcare Revenue – Hospitals – continued

     

Henderson, NV, Health Care Facilities Rev. (Catholic West), “A”, 6.75%, 2010 (c)

   $ 60,000    $ 64,934

Illinois Development Finance Authority Hospital Rev. (Adventist Health Systems Sunbelt Obligatory), 5.5%, 2009 (c)

     900,000      946,719

Illinois Finance Authority Rev. (Children’s Memorial Hospital), “A”, ASSD GTY, 5.25%, 2047

     540,000      528,584

Illinois Finance Authority Rev. (Edward Hospital), “A”, AMBAC, 5.5%, 2040

     470,000      470,315

Illinois Finance Authority Rev. (Kishhealth Systems Obligations Group), 5.75%, 2028

     380,000      379,533

Illinois Finance Authority Rev. (Rush University Medical Center), “B”, MBIA, 5.25%, 2035

     100,000      95,003

Illinois Health Facilities Authority Rev. (Swedish American Hospital), 6.875%, 2010 (c)

     500,000      537,840

Indiana Finance Authority Rev. (Sisters of St. Francis Health Services), 5.375%, 2032

     225,000      219,668

Indiana Health & Educational Facilities Authority, Hospital Rev. (Community Foundation of Northwest Indiana), 5.5%, 2037

     845,000      722,475

Indiana Health & Educational Facilities Financing Authority Rev. (Jackson County Schneck Memorial Hospital), “A”, 5.25%, 2036

     350,000      321,195

Indiana Health & Educational Facilities Financing Authority Rev. (Sisters of St. Francis Health Services, Inc.), “E”, FSA, 5.25%, 2041

     515,000      514,959

Indiana Health Facilities Financing Authority Rev. (Community Foundation of Northwest Indiana ), “A”, 6%, 2034

     150,000      143,411

Jackson, TN, Town Hospital Rev. (Jackson-Madison County General Hospital), 5.5%, 2033

     190,000      185,244

Jackson, TN, Town Hospital Rev. (Jackson-Madison County General Hospital), 5.75%, 2041

     380,000      375,569

Lake County, OH, Hospital Facilities Rev., (Lake Hospital), “C”, 6%, 2043

     265,000      254,578

Louisiana Public Facilities Authority Hospital Rev. (Lake Charles Memorial Hospital), 6.375%, 2034

     380,000      354,608

Louisville & Jefferson County, KY, Metro Government Health Facilities Rev. (Jewish Hospital, St. Mary’s Healthcare), 6.125%, 2037

     255,000      258,162

Lufkin, TX, Health Facilities Development Corp. Rev. (Memorial Health System), 5.5%, 2032

     45,000      40,771

Lufkin, TX, Health Facilities Development Corp. Rev. (Memorial Health System), 5.5%, 2037

     45,000      40,035

Maryland Health & Higher Educational Facilities Authority Rev. (Lifebridge Health), ASSD GTY, 5%, 2034

     250,000      252,470

Maryland Health & Higher Educational Facilities Authority Rev. (Medstar Health), BHAC, 5.25%, 2046

     365,000      367,960

Maryland Health & Higher Educational Facilities Authority Rev. (Mercy Medical Center), “A”, 5.5%, 2042

     300,000      272,352

Maryland Health & Higher Educational Facilities Authority Rev. (University of Maryland Medical System), 6.75%, 2010 (c)

     250,000      273,200

Maryland Health & Higher Educational Facilities Authority Rev. (Washington County Hospital), 5.75%, 2038

     65,000      61,820

Maryland Health & Higher Educational Facilities Authority Rev. (Washington County Hospital), 6%, 2043

     95,000      92,830

Massachusetts Health & Educational Facilities Authority Rev. (Civic Investments, Inc.), “A”, 9%, 2012 (c)

     250,000      300,828

Massachusetts Health & Educational Facilities Authority Rev. (Milford-Whitinsville Regional), “C”, 5.75%, 2013

     430,000      435,414

Massachusetts Health & Educational Facilities Authority Rev. (Quincy Medical Center), “A”, 6.5%, 2038

     165,000      158,725

Massachusetts Health & Educational Facilities Authority Rev. (South Shore Hospital), “R”, 5.75%, 2009 (c)

     630,000      654,986

Massachusetts Health & Educational Facilities Authority Rev., Unrefunded (South Shore Hospital), “F”, 5.75%, 2029

     370,000      362,926

Michigan State Hospital Finance Authority (McLaren Health Care), 5.75%, 2038

     390,000      386,868

New Hampshire Health & Educational Facilities Authority Rev. (Catholic Medical Center), “A”, 6.125%, 2012 (c)

     440,000      498,027

 

2


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – continued

     

Healthcare Revenue – Hospitals – continued

     

New Hampshire Health & Educational Facilities Authority Rev. (Catholic Medical Center), “A”, 6.125%, 2032

   $ 60,000    $ 60,183

New Hampshire Health & Educational Facilities Authority Rev. (Memorial Hospital at Conway), 5.25%, 2036

     300,000      254,427

New Jersey Health Care Facilities, Financing Authority Rev. (St. Peter’s University Hospital), 5.75%, 2037

     415,000      391,611

New York Dormitory Authority Rev. (North Shore Long Island Jewish Group), 5.5%, 2013 (c)

     100,000      112,315

New York Dormitory Authority Rev., Non-State Supported Debt (Mt. Sinai NYU Health), 5.5%, 2026

     200,000      200,024

New York Dormitory Authority Rev., Non-State Supported Debt (Mt. Sinai NYU Health), “C”, 5.5%, 2026

     300,000      300,036

Northampton County, PA, General Purpose Authority Hospital Rev., (St. Luke’s Hospital), “A”, 5.5%, 2040

     115,000      108,102

Northampton County, PA, General Purpose Authority Hospital Rev., (St. Luke’s Hospital), “A”, 5.5%, 2035

     100,000      95,019

Orange County, FL, Health Facilities Authority Hospital Rev. (Orlando Regional Healthcare), 5.75%, 2012 (c)

     150,000      167,447

Orange County, FL, Health Facilities Authority Hospital Rev. (Orlando Regional Healthcare), “C”, MBIA, 6.25%, 2013

     720,000      813,096

Orange County, FL, Health Facilities Authority Hospital Rev. (Orlando Regional Healthcare), “C”, ETM, 6.25%, 2013 (c)

     1,740,000      2,003,436

Orange County, FL, Health Facilities Authority Hospital Rev. (Orlando Regional Healthcare), “E”, 6%, 2009 (c)

     5,000      5,259

Orange County, FL, Health Facilities Authority Hospital Rev. (Orlando Regional Healthcare), “E”, 6%, 2026

     170,000      173,883

Philadelphia, PA, Hospitals & Higher Education Facilities Authority Rev. (Temple University Hospital), “A”, 5.5%, 2030

     395,000      358,624

Rhode Island Health & Educational Building Corp., Hospital Financing (Lifespan Obligated Group), 6.375%, 2012 (c)

     435,000      494,991

Rhode Island Health & Educational Building Corp., Hospital Financing (Lifespan Obligated Group), 6.375%, 2021

     65,000      68,927

Saline County, MO, Industrial Development Authority Rev. (John Fitzgibbon Memorial Hospital, Inc.), 5.625%, 2035

     500,000      426,430

Scioto County, OH, Hospital Facilities Rev. (Southern Ohio Medical Center), 5.75%, 2038

     575,000      558,170

Skagit County, WA, Public Hospital District No. 001, 5.75%, 2032

     65,000      61,194

South Broward, FL, Hospital District Rev., 5.625%, 2012 (c)

     1,000,000      1,110,270

South Carolina Jobs Economic Development Authority (Bon Secours - Venice Healthcare Corp.), “A”, 5.5%, 2012 (c)

     110,000      122,047

South Carolina Jobs Economic Development Authority (Bon Secours - Venice Healthcare Corp.), “B”, 5.5%, 2023

     390,000      395,355

South Dakota Health & Educational Facilities Authority Rev. (Sioux Valley Hospitals & Health Systems), “A”, 5.25%, 2034

     250,000      242,040

Southwestern, IL, Development Authority Rev. (Anderson Hospital), 5.375%, 2015

     380,000      385,096

Southwestern, IL, Development Authority Rev. (Anderson Hospital), 5.125%, 2036

     1,000,000      842,960

St. Paul, MN, Housing & Redevelopment Authority Healthcare Facilities Rev. (Healthpartners Obligations Group), 5.25%, 2023

     325,000      312,107

St. Paul, MN, Housing & Redevelopment Hospital (Healthpartners Obligated Group), 5.25%, 2036

     615,000      543,236

St. Paul, MN, Port Authority Lease Rev. (Regions Hospital), “1”, 5%, 2036

     675,000      552,002

Sullivan County, TN, Health, Educational & Housing Facilities Board Hospital Rev. (Wellmont Health Systems Project), “C”, 5.25%, 2026

     1,000,000      910,970

Sullivan County, TN, Health, Educational & Housing Facilities Board Hospital Rev. (Wellmont Health Systems Project), “C”, 5.25%, 2036

     135,000      116,463

Sumner County, TN, Health, Educational & Housing Facilities Board Rev. (Sumner Regional Health), “A”, 5.5%, 2046

     1,000,000      874,530

 

3


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – continued

     

Healthcare Revenue – Hospitals – continued

     

Tarrant County, TX, Cultural Education Facilities Finance Corp. (Scott and White Memorial Hospital), “A”, 5.5%, 2031

   $ 85,000    $ 84,996

Tyler, TX, Health Facilities Development Corp. (East Texas Medical Center), “A”, 5.25%, 2032

     265,000      230,974

Tyler, TX, Health Facilities Development Corp. (East Texas Medical Center), “A”, 5.375%, 2037

     220,000      189,328

University of Kansas Hospital Authority Health Facilities Rev. (KU Health Systems), 5.625%, 2012 (c)

     500,000      555,590

Washington Health Care Facilities Authority Rev. (Highline Medical Center), 6.25%, 2036

     700,000      730,954

Washington Health Care Facilities Authority Rev. (Mason Medical), “A”, 6.25%, 2042

     570,000      537,949

West Virginia Hospital Finance Authority Rev. (Thomas Health System), 6.5%, 2038

     285,000      268,550

Wisconsin Health & Educational Facilities Authority Rev. (Aurora Health Care, Inc.), 6.4%, 2033

     175,000      178,052

Wisconsin Health & Educational Facilities Authority Rev. (Fort Healthcare, Inc. Project), 5.375%, 2018

     385,000      391,634

Wisconsin Health & Educational Facilities Authority Rev. (Wheaton Franciscan Services), 5.25%, 2034

     695,000      577,469
      $ 33,728,646

Healthcare Revenue – Long Term Care – 8.9%

     

Abilene, TX, Health Facilities Development Corp., Retirement Facilities Rev. (Sears Methodist Retirement), “A”, 7%, 2033

   $ 500,000    $ 501,670

Bucks County, PA, Industrial Development Authority, Retirement Community Rev. (Ann’s Choice, Inc.), “A”, 6.125%, 2025

     500,000      495,120

Capital Projects Finance Authority, FL (Glenridge on Palmer Ranch), “A”, 8%, 2012 (c)

     500,000      592,765

Chartiers Valley, PA, Industrial & Commercial Development Authority Rev. (Friendship Village South), “A”, 5.25%, 2013

     500,000      504,315

Chester County, PA, Industrial Development Authority Rev. (RHA Nursing Home), 8.5%, 2032

     720,000      725,299

Cole County, MO, Industrial Development Authority, Senior Living Facilities Rev. (Lutheran Senior Services), 5.5%, 2035

     500,000      459,015

Connecticut Development Authority First Mortgage Gross Rev., Health Care Project (Elim Park Baptist, Inc. Project), 5.75%, 2023

     250,000      250,648

Delaware County, PA, Industrial Development Authority Rev. (Care Institute-Main Line LLC), 9%, 2031 (d)

     535,000      389,180

Fulton County, GA, Residential Care Facilities (Canterbury Court), “A”, 6.125%, 2034

     250,000      228,855

Fulton County, GA, Residential Care Facilities, First Mortgage (Lenbrook Square Foundation, Inc.), “A”, 5%, 2029

     270,000      217,029

Illinois Finance Authority Rev. (Hoosier Care, Inc.), “A”, 7.125%, 2034

     440,000      412,698

Illinois Finance Authority Rev. (Smith Village), “A”, 6.25%, 2035

     500,000      454,050

Illinois Health Facilities Authority Rev. (Lutheran Senior Ministries, Inc.), 7.375%, 2011 (c)

     250,000      286,045

Illinois Health Facilities Authority Rev. (Smith Crossing), “A”, 7%, 2032

     250,000      250,288

Johnson City, TN, Health & Educational Facilities Board (Appalachian Christian Village), “A”, 6.25%, 2032

     250,000      226,415

Juneau, AK, City & Borough Non-Recourse Rev. (St. Ann’s Care Project), 6.875%, 2025

     455,000      430,180

Kentwood, MI, Economic Development Ltd. (Holland Home), “A”, 5.375%, 2036

     500,000      435,175

La Verne, CA, COP (Brethren Hillcrest Homes), “B”, 6.625%, 2025

     350,000      355,751

Lee County, FL, Industrial Development Authority Health Care Facilities Rev. (Shell Point Village), “A”, 5.5%, 2009 (c)

     175,000      183,978

Massachusetts Development Finance Agency Rev. (Loomis Communities, Inc.), “A”, 5.625%, 2015

     200,000      201,238

Montgomery County, PA, Industrial Development Authority Rev. (Whitemarsh Continuing Care), 6.125%, 2028

     200,000      181,954

Montgomery County, PA, Industrial Development Authority Rev. (Whitemarsh Continuing Care), 6.25%, 2035

     300,000      267,795

 

4


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – continued

     

Healthcare Revenue – Long Term Care – continued

     

New Jersey Economic Development Authority Rev. (Lions Gate), “A”, 5.75%, 2025

   $ 310,000    $ 287,082

New Jersey Economic Development Authority Rev. (Lions Gate), “A”, 5.875%, 2037

     100,000      87,980

Savannah, GA, Economic Development Authority, First Mortgage (Marshes of Skidway), “A”, 7.4%, 2024

     250,000      256,050

Shelby County, TN, Health, Educational & Housing Facilities Board Rev. (Germantown Village), “A”, 7.25%, 2034

     150,000      140,030

South Carolina Jobs & Economic Development Authority, Health Facilities Rev. (Wesley Commons), 5.3%, 2036

     250,000      204,880

Suffolk County, NY, Industrial Development Agency, Civic Facilities Rev. (Gurwin Jewish Phase II), 6.7%, 2039

     500,000      498,650

Westminster, MD, Economic Development Rev. (Carroll Lutheran Village), “A”, 5.875%, 2021

     500,000      491,860
      $ 10,015,995

Human Services – 0.2%

     

Massachusetts Development Finance Agency Rev. (Evergreen Center, Inc.), 5%, 2024

   $ 250,000    $ 219,000

Industrial Revenue – Airlines – 0.1%

     

Chicago, IL, O’Hare International Airport Special Facilities Rev. (American Airlines, Inc.), 5.5%, 2030

   $ 105,000    $ 62,938

Dallas Fort Worth, TX, International Airport Facility Improvement Corp. (American Airlines, Inc.), 5.5%, 2030

     105,000      61,891
      $ 124,829

Industrial Revenue – Chemicals – 0.4%

     

Brazos River, TX, Harbor Navigation District (Dow Chemical Co.), “B-2”, 4.95%, 2033

   $ 500,000    $ 421,465

Industrial Revenue – Other – 3.6%

     

California Statewide Communities Development Authority Facilities (Microgy Holdings Project), 9%, 2038

   $ 200,000    $ 199,950

Gulf Coast, TX, Industrial Development Authority Rev. (CITGO Petroleum Corp.), 8%, 2028

     250,000      259,280

Houston, TX, Industrial Development Corp. (United Parcel Service, Inc.), 6%, 2023

     345,000      318,915

Indianapolis, IN, Airport Authority Rev., Special Facilities (FedEx Corp.), 5.1%, 2017

     250,000      236,380

Michigan Strategic Fund Ltd. Obligation Rev. (Michigan Sugar Co., Carrollton), 6.55%, 2025

     250,000      244,685

Missouri Development Finance Board Solid Waste Disposal Rev. (Procter & Gamble Paper Products), 5.2%, 2029

     250,000      245,663

New Jersey Economic Development Authority Rev. (GMT Realty LLC), “B”, 6.875%, 2037

     500,000      486,875

Toledo Lucas County, OH, Authority Port Rev., Facilities (CSX, Inc. Project), 6.45%, 2021

     1,000,000      1,048,160

Washington County, NE, Wastewater Facilities Rev. (Cargill, Inc. Project), 5.9%, 2027

     1,000,000      1,014,530
      $ 4,054,438

Industrial Revenue – Paper – 1.4%

     

Camden, AL, Industrial Development Board Exempt Facilities Rev., “B” (Weyerhaeuser Co.), 6.375%, 2024

   $ 275,000    $ 313,816

Camden, AR, Environmental Improvement Rev. (International Paper Co.), “A”, 5%, 2018

     500,000      447,895

Escambia County, FL, Environmental Improvement Rev. (International Paper Co.), “A”, 5.75%, 2027

     250,000      220,710

Lowndes County, MS, Solid Waste Disposal & Pollution Control Rev. (Weyerhaeuser Co.), “B”, 6.7%, 2022

     325,000      332,846

Rockdale County, GA, Development Authority Project Rev. (Visy Paper Project), “A”, 6.125%, 2034

     320,000      303,638
      $ 1,618,905

Miscellaneous Revenue – Entertainment & Tourism – 0.9%

     

Cabazon Band Mission Indians, CA, 8.375%, 2015 (z)

   $ 100,000    $ 103,587

 

5


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – continued

     

Miscellaneous Revenue – Entertainment & Tourism – continued

     

Cabazon Band Mission Indians, CA, 8.75%, 2019 (z)

   $ 360,000    $ 374,314

Cow Creek Band of Umpqua Tribe of Indians, OR, “C”, 5.625%, 2026 (n)

     350,000      311,560

New York Liberty Development Corp. Rev. (National Sports Museum), “A”, 6.125%, 2019

     250,000      221,580
      $ 1,011,041

Miscellaneous Revenue – Other – 2.2%

     

Austin, TX, Convention Center (Convention Enterprises, Inc.), “A”, XLCA, 5.25%, 2024

   $ 90,000    $ 84,577

Austin, TX, Convention Center (Convention Enterprises, Inc.), “A”, XLCA, 5.25%, 2019

     190,000      187,901

Austin, TX, Convention Center (Convention Enterprises, Inc.), “A”, XLCA, 5.25%, 2020

     155,000      151,243

District of Columbia Rev. (Smithsonian Institution), 5%, 2028

     1,000,000      1,011,270

Oklahoma Industries Authority Rev. (Oklahoma Medical Research Foundation Project), 5.5%, 2029

     600,000      587,058

Summit County, OH, Port Authority Building Rev. (Seville Project), “A”, 5.1%, 2025

     455,000      428,228

V Lakes Utility District Ranking Water Systems Rev., 7%, 2037

     85,000      75,902
      $ 2,526,179

Multi-Family Housing Revenue – 5.9%

     

Broward County, FL, Housing Finance Authority Rev. (Chaves Lakes Apartments Ltd.), “A”, 7.5%, 2040

   $ 500,000    $ 508,190

Capital Trust Agency, FL, Housing Rev. (Atlantic Housing Foundation), “B”, 7%, 2032

     370,000      370,000

Charter Mac Equity Issuer Trust, FHLMC, 6.3%, 2019 (n)

     500,000      543,665

Charter Mac Equity Issuer Trust, “B”, FHLMC, 7.6%, 2050 (a)(n)

     500,000      538,915

Clay County, FL, Housing Finance Authority Rev. (Madison Commons Apartments), “A”, 7.45%, 2040

     245,000      247,305

District of Columbia Housing Finance Agency (Henson Ridge), “E”, FHA, 5.1%, 2037

     500,000      445,160

Durham, NC, Durham Housing Authority Rev. (Magnolia Pointe Apartments), 5.65%, 2038 (a)

     398,716      349,554

Massachusetts Housing Finance Agency Rev., “B”, 5%, 2030

     455,000      435,094

Massachusetts Housing Finance Agency Rev., “E”, 5%, 2028

     250,000      229,915

MuniMae TE Bond Subsidiary LLC, 5.5%, 2049 (a)(n)

     1,000,000      1,006,350

New Mexico Mortgage Finance Authority, Multi-Family Housing Rev. (Sun Pointe Apartments), “E”, FHA, 4.8%, 2040

     500,000      418,795

Resolution Trust Corp., Pass-Through Certificates, “1993”, 8.5%, 2016 (z)

     227,741      224,263

Seattle, WA, Housing Authority Rev., Capped Fund Program (High Rise Rehab), “I”, FSA, 5%, 2025

     500,000      467,650

Tacoma, WA, Housing Authority Multi-Family Rev. (HSG-GNMA Collateral Mortgage Loans Redwood), 5.05%, 2037

     1,040,000      917,675
      $ 6,702,531

Sales & Excise Tax Revenue – 1.9%

     

Bolingbrook, IL, Sales Tax Rev., 6.25%, 2024

   $ 250,000    $ 252,068

Massachusetts Bay Transportation Authority Sales Tax Rev., “A”, 5%, 2031

     750,000      787,718

Tampa Bay, FL, Sports Authority Rev. (Sales Tax-Tampa Bay Arena), MBIA, 5.75%, 2025

     1,000,000      1,095,820
      $ 2,135,606

Single Family Housing – Local – 0.8%

     

Chicago, IL, Single Family Mortgage Rev., “A”, GNMA, 7.15%, 2031

   $ 15,000    $ 15,000

Minneapolis & St. Paul Housing Authority Rev. (City Living), “A-2”, GNMA, 5%, 2038

     489,299      407,185

Pittsburgh, PA, Urban Redevelopment Authority Rev., “C”, GNMA, 4.8%, 2028

     500,000      468,595
      $ 890,780

Single Family Housing – State – 2.3%

     

Colorado Housing & Finance Authority Rev. (Single Family Project), “B-2”, 7.25%, 2031

   $ 45,000    $ 46,429

Maine Housing Authority Mortgage, “A-2”, 4.95%, 2027

     500,000      450,695

Montana Board Housing (Single Family Mortgage), “A”, 5%, 2036

     895,000      784,655

North Dakota Housing Finance Agency Rev., “A”, 4.85%, 2021

     470,000      438,449

 

6


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – continued

     

Single Family Housing – State – continued

     

Tennessee Housing Development Agency (Homeownership Program 2007), 4.65%, 2027

   $ 1,000,000    $ 877,580
      $ 2,597,808

Solid Waste Revenue – 2.0%

     

Delaware County, PA, Industrial Development Authority Rev. (American Ref-Fuel), “A”, 6.1%, 2013

   $ 1,000,000    $ 997,010

Massachusetts Industrial Finance Agency, Resource Recovery Rev. (Ogden Haverhill Associates), “A”, 5.45%, 2012

     1,250,000      1,241,963
      $ 2,238,973

State & Agency – Other – 0.2%

     

Commonwealth of Puerto Rico (Mepsi Campus), “A”, 6.25%, 2024

   $ 100,000    $ 97,039

Commonwealth of Puerto Rico (Mepsi Campus), “A”, 6.5%, 2037

     100,000      93,232
      $ 190,271

State & Local Agencies – 15.8%

     

Andover, MN, Economic Development Authority Public Facilities Lease Rev. (Andover Community Center), 5%, 2014 (j)

   $ 355,000    $ 384,763

Andover, MN, Economic Development Authority Public Facilities Lease Rev. (Andover Community Center), 5%, 2019 (c)

     245,000      255,229

Berkeley County, SC, School District Installment Lease (Securing Assets for Education), 5%, 2028

     500,000      489,985

Dorchester County, SC, School District No. 2, Growth Remedy Opportunity Tax Hike, 5.25%, 2029

     250,000      248,713

Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Enhanced, “B”, 5.5%, 2013 (c)

     500,000      551,120

Hibbing, MN, Economic Development Authority Rev. (Public Project Hibbing Lease Obligations), 6.4%, 2012

     335,000      335,864

Indiana Office Building Commission Correction Facilities Program Rev. (Women’s Prison), “B”, AMBAC, 6.25%, 2016

     2,820,000      3,195,314

Lancaster, SC, Educational Assistance Program, Inc., School District Lancaster County Project, 5%, 2026

     550,000      518,535

Laurens County, SC, School District No. 55, Installment Purchase Rev., 5.25%, 2030

     350,000      332,367

Los Angeles County, CA, Schools Regionalized Business Service Corp., Capital Appreciation Pooled Financing, “A”, AMBAC, 0%, 2021

     2,135,000      1,117,288

Missouri Development Finance Board Infrastructure Facilities Rev. (Eastland Center Project), “A”, 5%, 2021

     570,000      559,552

New York Dormitory Authority Rev. (City University) “A”, 5.75%, 2018

     5,000,000      5,670,400

New York Urban Development Corp. Rev. (State Facilities), 5.6%, 2015

     1,000,000      1,111,260

Newberry, SC, Investing in Children’s Education (Newberry County School District Program), 5%, 2030

     350,000      322,774

St. Louis, MO, Industrial Development Authority Leasehold Rev. (Convention Center Hotel), AMBAC, 0%, 2018

     300,000      186,816

Utah Building Ownership Authority Lease Rev. (State Facilities Master Lease Program), “C”, FSA, 5.5%, 2019

     1,750,000      1,976,765

West Virginia Building Commission Lease Rev. (WV Regional Jail), “A”, AMBAC, 5.375%, 2018

     500,000      555,805
      $ 17,812,550

Student Loan Revenue – 1.3%

     

Nebhelp, Inc., Nebraska Rev. Jr., “A-6”, MBIA, 6.45%, 2018

   $ 1,500,000    $ 1,502,925

Tax – Other – 3.6%

     

Dallas County, TX, Flood Control District, 7.25%, 2032

   $ 500,000    $ 515,995

Dona Ana County, NM, Gross Receipts Tax Rev., AMBAC, 5.5%, 2015

     1,000,000      1,123,590

New Jersey Economic Development Authority Rev. (Cigarette Tax), 5.75%, 2029

     500,000      473,235

New York, NY, Transitional Finance Authority Rev., “A”, 5%, 2026

     1,960,000      2,004,492
      $ 4,117,312

 

7


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – continued

     

Tax Assessment – 6.1%

     

Atlanta, GA, Tax Allocation (Eastside Project), “A”, 5.625%, 2016

   $ 400,000    $ 396,364

Celebration Community Development District, FL, “A”, 6.4%, 2034

     230,000      235,108

Chicago, IL, Tax Increment Allocation (Pilsen Redevelopment), “B”, 6.75%, 2022

     610,000      626,220

Double Branch Community Development District, FL, “A”, 6.7%, 2034

     315,000      320,884

Du Page County, IL, Special Service Area (Monarch Landing Project), 5.4%, 2016

     250,000      243,418

Grand Bay at Doral Community Development District, FL, “B”, 6%, 2017

     405,000      373,305

Heritage Harbour North Community Development District, FL, Capital Improvement Rev., 6.375%, 2038

     140,000      123,899

Huntington Beach, CA, Community Facilities District, Special Tax (Grand Coast Resort), “2000-1”, 6.45%, 2031

     300,000      304,716

Lincoln, CA, Special Tax (Community Facilities District ), “2003-1”, 5.55%, 2013 (c)

     445,000      505,805

Lincolnshire, IL, Special Service Area No. 1 (Sedgebrook Project), 6.25%, 2034

     225,000      208,334

Magnolia Park Community Development District, FL, Special Assessment Rev., “A”, 6.15%, 2039

     185,000      159,069

Oakdale, CA, Public Financing Authority Tax Allocation Rev. (Central City Redevelopment Project), 5.375%, 2033

     500,000      465,400

Plano, IL, Special Service Area No. 4 (Lakewood Springs Project Unit 5-B), 6%, 2035

     750,000      682,725

Portage, IN, Economic Development Rev. (Ameriplex Project), 5%, 2027

     105,000      94,744

Riverside, MO, Tax Increment Rev. (L-385 Levee Project), 5.25%, 2020

     500,000      501,915

Seven Oaks, FL, Community Development District II Special Assessment Rev., “A”, 5.875%, 2035

     470,000      393,202

Seven Oaks, FL, Community Development District II Special Assessment Rev., “B”, 5%, 2009

     150,000      148,085

Tolomato Community Development District, FL, Special Assessment Rev., 6.65%, 2040

     100,000      96,663

Volo Village, IL, Special Service Area No. 3, Special Tax (Symphony Meadows Project), “1”, 6%, 2036

     250,000      221,605

West Villages Improvement District, FL, Special Assessment Rev. (Unit of Development No. 3), 5.5%, 2037

     495,000      388,530

Westridge, FL, Community Development District, Capital Improvement Rev., 5.8%, 2037

     490,000      400,663
      $ 6,890,654

Tobacco – 4.2%

     

Badger, WI, Tobacco Asset Securitization Corp., 6.375%, 2032

   $ 250,000    $ 245,900

Buckeye, OH, Tobacco Settlement Rev., Asset Backed, “A-2”, 5.875%, 2030

     480,000      414,754

Buckeye, OH, Tobacco Settlement Rev., Asset Backed, “A-2”, 5.875%, 2047

     1,405,000      1,137,980

Buckeye, OH, Tobacco Settlement Rev., Asset Backed, “A-2”, 6.5%, 2047

     635,000      560,686

Golden State, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., “A-1”, 6.25%, 2013 (c)

     700,000      765,093

Inland Empire, CA, Tobacco Securitization Corp., Tobacco Settlement Rev., Asset Backed, “C-1”, 0%, 2036

     250,000      27,995

Michigan Tobacco Settlement Finance Authority Rev., Asset Backed, “A”, 6%, 2048

     1,380,000      1,145,883

South Carolina Tobacco Settlement Authority Rev., “B”, 6.375%, 2011 (c)

     400,000      440,040

Virginia Tobacco Settlement Financing Corp., “B-1”, 5%, 2047

     105,000      74,405
      $ 4,812,736

Toll Roads – 1.8%

     

Northwest Parkway, CO, Public Highway Authority (First Tier), “D”, 7.125%, 2011 (c)

   $ 495,000    $ 561,879

San Joaquin Hills, CA, Transportation Corridor Agency Toll Road Rev., “A”, MBIA, 0%, 2015

     2,000,000      1,518,980
      $ 2,080,859

Transportation –Special Tax – 1.1%

     

Regional Transportation Authority, IL, “C”, FGIC, 7.75%, 2020

   $ 1,000,000    $ 1,266,500

Universities –Colleges – 22.1%

     

Broward County, FL, Educational Facilities Authority (Nova Southeastern), “B”, 5.5%, 2024

   $ 155,000    $ 153,080

 

8


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued

 

Issuer

   Shares/Par    Value ($)

Municipal Bonds – continued

     

Universities – Colleges – continued

     

California Educational Facilities Authority Rev. (California Lutheran University), 5.75%, 2038

   $ 350,000    $ 341,670

California Municipal Finance Authority Rev. (Biola University), 5.8%, 2028

     100,000      99,877

California State University Rev., “A”, AMBAC, 5%, 2026

     960,000      976,790

Chicago, IL, State University Rev. Auxiliary Facilities Systems, MBIA, 5.5%, 2023

     1,085,000      1,206,596

Harris County, TX, Cultural Education Facilities Rev. (Baylor College of Medicine), “D”, 5.625%, 2032

     280,000      274,000

Lubbock, TX, Educational Facilities Authority Rev. (Lubbock Christian University), 5.125%, 2027

     285,000      260,234

Lubbock, TX, Educational Facilities Authority Rev. (Lubbock Christian University), 5.25%, 2037

     255,000      222,725

Marietta, GA, Development Facilities Authority Rev. (Life University), 7%, 2030

     100,000      99,213

Marietta, GA, Development Facilities Authority Rev. (Life University), 7%, 2039

     100,000      97,643

Massachusetts Development Finance Agency Rev. (Western New England College), 6.125%, 2012 (c)

     315,000      360,489

Metropolitan Government of Nashville & Davidson County, TN, Health & Educational

     

Facilities Board Rev. (Meharry Medical College), AMBAC, 6%, 2016

     1,575,000      1,806,620

Miami-Dade County, FL, Educational Facilities Authority Rev. (University of Miami), “A”, 5.75%, 2028

     125,000      129,650

Michigan Higher Education Facilities Authority Rev. (College for Creative Studies) , 6.125%, 2037

     475,000      460,204

Missouri Health & Educational Facilities Authority Rev. (Central Institute for the Deaf), RADIAN, 5.85%, 2010 (c)

     600,000      630,120

New York Dormitory Authority Rev. (Columbia University), 5%, 2038 (u)

     15,000,000      15,290,700

University of Minnesota, “A”, ETM, 5.75%, 2014 (c)

     500,000      572,960

University of Minnesota, “A”, ETM, 5.5%, 2021 (c)

     2,000,000      2,271,140
      $ 25,253,711

Universities – Dormitories – 1.2%

     

California Statewide Communities Development Authority Rev. (Lancer Educational Student Housing Project), 5.625%, 2033

   $ 500,000    $ 445,340

California Statewide Communities Development Authority Student Housing (University of California - Irvine), 6%, 2040

     220,000      219,976

Maryland Economic Development Corp. Student Housing (University of Maryland - College Park), 5.875%, 2043

     130,000      127,253

Middlesex County, NJ, Improvement Authority (Street Student Housing Project), “A”, 5%, 2018

     300,000      301,524

Minneapolis, MN, Student Housing Rev. (Riverton Community Housing Project), “A”, 5.7%, 2040

     250,000      220,785
      $ 1,314,878

Universities – Secondary Schools – 0.2%

     

Colorado Educational & Cultural Facilities Authority Rev. (Charter School), 5.625%, 2040

   $ 230,000    $ 223,528

Utilities – Cogeneration – 1.1%

     

Pennsylvania Economic Development Financing Authority Rev., Resource Recovery Rev. (Colver), “G”, 5.125%, 2015

   $ 425,000    $ 409,407

Puerto Rico Industrial, Tourist, Educational, Medical & Environmental Central Facilities (Cogeneration Facilities - AES Puerto Rico Project), 6.625%, 2026

     320,000      331,421

Suffolk County, NY, Industrial Development Agency Rev. (Nissequoque Cogeneration Partners Facilities), 5.5%, 2023

     550,000      503,008
      $ 1,243,836

Utilities – Investor Owned – 8.9%

     

Brazos River Authority, TX, Pollution Control Rev. (Texas Utility Co.), “A” 7.7%, 2033

   $ 250,000    $ 231,413

Brazos River Authority, TX, Pollution Control Rev. (TXU Electric Co. LLC), “C”, 5.75%, 2036 (a)

     100,000      93,159

Brazos River Authority, TX, Pollution Control Rev. (TXU Electric Co. LLC), “C”, 6.75%, 2038

     270,000      220,163

Clark County, NV, Industrial Development Rev. (Nevada Power Co. Project), “A”, 5.9%, 2032

     250,000      217,100

 

9


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued

 

Issuer

   Shares/Par    Value ($)  

Municipal Bonds – continued

     

Utilities - Investor Owned – continued

     

Clark County, NV, Industrial Development Rev. (Nevada Power Co. Project), “B”, 5.9%, 2030

   $ 250,000    $ 219,808  

Clark County, NV, Industrial Development Rev. (Southwest Gas Corp. Project), “E”, 5.8%, 2038 (a)

     250,000      247,765  

Matagorda County, TX, Navigation District 1 (Houston Lighting.), AMBAC, 5.125%, 2028

     2,000,000      1,808,540  

Michigan Strategic Fund, Ltd. Obligation Rev. (Detroit Edison), “A”, MBIA, 5.55%, 2029

     3,000,000      2,796,240  

Mississippi Business Finance Corp., Pollution Control Rev. (Systems Energy Resources Project), 5.875%, 2022

     1,000,000      981,180  

New Hampshire Business Finance Authority, Pollution Control Rev. (Public Service of New Hampshire), “B”, MBIA, 4.75%, 2021

     250,000      244,175  

Pennsylvania Economic Development Financing Authority Rev. (Reliant Energy Seward), “A”, 6.75%, 2036

     200,000      201,672  

Petersburg, IN, Pollution Control Rev. (Indianapolis Power & Light), MBIA, 5.4%, 2017

     2,500,000      2,783,825  
      $ 10,045,040  

Utilities - Municipal Owned – 0.9%

     

North Carolina Eastern Municipal Power Agency System Rev., “F”, 5.5%, 2016

   $ 285,000    $ 296,637  

North Carolina Municipal Power Agency No. 1, Catawba Electric Rev., “A”, MBIA, 5.5%, 2015

     640,000      698,746  
      $ 995,383  

Utilities - Other – 2.3%

     

Main Street Natural Gas, Inc., GA, Gas Project Rev., “A”, 5.5%, 2026

   $ 120,000    $ 105,166  

Main Street Natural Gas, Inc., GA, Gas Project Rev., “A”, 5.5%, 2028

     250,000      215,423  

Public Authority for Colorado Energy Natural Gas Purchase Rev., 6.5%, 2038

     215,000      208,621  

Salt Verde Financial Corp., AZ, Senior Gas Rev., 5%, 2032

     795,000      675,861  

Salt Verde Financial Corp., AZ, Senior Gas Rev., 5%, 2037

     790,000      660,369  

Tennessee Energy Acquisition Corp., Gas Rev., “A”, 5.25%, 2026

     610,000      558,949  

Tennessee Energy Acquisition Corp., Gas Rev., “C”, 5%, 2025

     185,000      166,193  
      $ 2,590,582  

Water & Sewer Utility Revenue – 4.7%

     

Hampton Roads, VA, Sanitation District Wastewater Rev., 5%, 2033

   $ 680,000    $ 690,316  

Massachusetts Water Pollution Abatement Trust, “6”, 5.625%, 2010 (c)

     1,205,000      1,297,255  

Massachusetts Water Resources Authority (Charlestown Navy Yard), “B”, FSA, 5.25%, 2029

     600,000      656,250  

Puerto Rico Aqueduct & Sewer Authority Rev., MBIA, 6.25%, 2012

     1,000,000      1,135,160  

Puerto Rico Aqueduct & Sewer Authority Rev., MBIA, 6.25%, 2013

     750,000      869,288  

Puerto Rico Aqueduct & Sewer Authority Rev., “A”, 6%, 2038

     505,000      526,649  

Puerto Rico Aqueduct & Sewer Authority Rev., “A”, 6%, 2044

     195,000      202,307  
      $ 5,377,225  

Total Municipal Bonds

      $ 168,902,353  

Floating Rate Demand Notes – 2.4%

     

East Baton Rouge, LA, Pollution Control Rev. (Exxon Mobil Corp.), 2%, due 9/02/08

   $ 2,600,000    $ 2,600,000  

Lincoln County, WY, Pollution Control Rev. (Exxon Mobil Corp.), “B”, 2.2%, due 9/02/08

     100,000      100,000  

Total Floating Rate Demand Notes

      $ 2,700,000  

Total Investments

      $ 171,602,353  

Other Assets, Less Liabilities (8.7)%

        (9,818,693 )

Preferred shares (issued by the fund) (43.1)%

        (48,750,000 )

Net assets applicable to common shares – 100.0%

      $ 113,033,660  

 

(a) Mandatory tender date is earlier than stated maturity date.
(c) Refunded bond.

 

10


MFS Investment Grade Municipal Trust

PORTFOLIO OF INVESTMENTS (Unaudited) 8/31/08 - continued

 

(d) Non-income producing security-in default.
(f) All or a portion of the security has been segregated as collateral for open futures contracts.
(j) Crossover refunded bond.
(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 $2,400,490, representing 2.1% of net assets applicable to common shares.
(u) Underlying security deposited into special purpose trust (“the trust”) by investment banker upon creation of self-deposited inverse floaters.
(z) Restricted securities are not registered under the Securities Act of 1933 and are subject to legal restrictions on resale. These securities generally may be resold in transactions exempt from registration or to the public if the securities are subsequently registered. Disposal of these securities may involve time-consuming negotiations and prompt sale at an acceptable price may be difficult. The fund holds the following restricted securities:

 

Restricted Securities

   Acquisition
Date
   Cost    Current
Market Value
 

Cabazon Band Mission Indians, CA, 8.375%, 2015

   10/04/04    $ 100,000    $ 103,587  

Cabazon Band Mission Indians, CA, 8.75%, 2019

   10/04/04      360,000      374,314  

Resolution Trust Corp., Pass-Through Certificates, “1993”, 8.5%, 2016

   8/27/93      232,276      224,263  
              

Total Restricted Securities

         $ 702,164  

% of Net Assets

           0.6 %

The following abbreviations are used in this report and are defined:

 

COP   Certificate of Participation
ETM   Escrowed to Maturity

 

Insurers

AMBAC   AMBAC Indemnity Corp.
ASSD GTY   Assured Guaranty Insurance Co.
BHAC   Berkshire Hathaway Assurance Corp.
CHCLI   California Health Construction Loan Insurance
FGIC   Financial Guaranty Insurance Co.
FHA   Federal Housing Administration
FHLMC   Federal Home Loan Mortgage Corp.
FSA   Financial Security Assurance Inc.
GNMA   Government National Mortgage Assn.
MBIA   MBIA Insurance Corp.
RADIAN   Radian Asset Assurance, Inc.
XLCA   XL Capital Insurance Co.

See attached supplemental information. For more information see notes to financial statements as disclosed in the most recent semiannual or annual report.

 

11


MFS Investment Grade Municipal Trust

Supplemental Information (Unaudited) 8/31/08

 

(1) Fair Value Disclosure

The fund adopted FASB Statement No. 157, Fair Value Measurements (the “Statement”) in this reporting period. This Statement provides a single definition of fair value, a hierarchy for measuring fair value and expanded disclosures about fair value measurements.

Various inputs are used in determining the value of the fund’s assets or liabilities carried at market value. These inputs are categorized into three broad levels. Level 1 includes quoted prices in active markets for identical assets or liabilities. Level 2 includes other significant observable market-based inputs (including quoted prices for similar securities, interest rates, prepayment speed, and credit risk). Level 3 includes unobservable inputs, which may include the adviser’s own assumptions in determining the fair value of investments. Other financial instruments are derivative instruments not reflected in total investments, such as futures, forwards, swap contracts and written options, which are valued at the unrealized appreciation/depreciation on the instrument. The following is a summary of the levels used as of August 31, 2008 in valuing the fund’s assets or liabilities carried at market value:

 

     Level 1     Level 2    Level 3    Total  

Investments in Securities

   $ —       $ 171,602,353    $ —      $ 171,602,353  

Other Financial Instruments

   $ (4,951 )   $ —      $ —      $ (4,951 )

(2) Portfolio Securities

The cost and unrealized appreciation and depreciation in the value of the investments owned by the fund, as computed on a federal income tax basis, are as follows:

 

Aggregate Cost

   $ 159,038,755  
        

Gross unrealized appreciation

   $ 6,411,153  

Gross unrealized depreciation

     (5,097,555 )
        

Net unrealized appreciation (depreciation)

   $ 1,313,598  
        

The aggregate cost above includes prior fiscal year end tax adjustments.

(3) Derivative Contracts at 8/31/08

Futures contracts outstanding at 8/31/08

 

Description

   Contracts    Value    Expiration
Date
   Unrealized
Appreciation
(Depreciation)
 

U.S. Treasury Bond (Short)

   85    $ 9,971,563    Dec-08    $ 9,663  

U.S. Treasury Note 10 yr (Short)

   198      22,869,000    Dec-08      (14,614 )
                 
            $ (4,951 )
                 

At August 31, 2008, the fund had sufficient cash and/or other liquid securities to cover any commitments under these derivative contracts.

 

12


ITEM 2. 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-Q, 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 registrant’s last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant’s internal control over financial reporting.

 

ITEM 3. EXHIBITS.

File as exhibits as part of this Form a separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the Act (17 CFR 270.30a-2): Attached hereto.


Notice

A copy of the Agreement and Declaration of Trust, as amended, of the Registrant is on file with the Secretary of State of The Commonwealth of Massachusetts and notice is hereby given that this instrument is executed on behalf of the Registrant by an officer of the Registrant as an officer and not individually and the obligations of or arising out of this instrument are not binding upon any of the Trustees or shareholders individually, but are binding only upon the assets and property of the respective constituent series of the Registrant.


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Registrant: MFS INVESTMENT GRADE MUNICIPAL TRUST

 

By (Signature and Title)*   ROBERT J. MANNING
  Robert J. Manning, President

Date: October 15, 2008

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

 

By (Signature and Title)*   ROBERT J. MANNING
  Robert J. Manning, President (Principal Executive Officer)

Date: October 15, 2008

 

By (Signature and Title)*   MARIA F. DWYER
  Maria F. Dwyer, Treasurer (Principal Financial Officer and Accounting Officer)

Date: October 15, 2008

 

* Print name and title of each signing officer under his or her signature.