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 811-5785 --------------------- Colonial Investment Grade Municipal Trust ------------------------------------------------------------------------------ (Exact name of registrant as specified in charter) One Financial Center, Boston, Massachusetts 02111 ------------------------------------------------------------------------------ (Address of principal executive offices) (Zip code) Russell L. Kane, Esq. Columbia Management Group, Inc. One Financial Center Boston, MA 02111 ------------------------------------------------------------------------------ (Name and address of agent for service) Registrant's telephone number, including area code: 1-617-426-3363 ------------------- Date of fiscal year end: November 30, 2003 ------------------ Date of reporting period: May 31, 2003 ----------------- Form N-CSR is to be used by management investment companies to file reports with the Commission not later than 10 days after the transmission to stockholders of any report that is required to be transmitted to stockholders under Rule 30e-1 under the Investment Company Act of 1940 (17 CFR 270.30e-1). The Commission may use the information provided on Form N-CSR in its regulatory, disclosure review, inspection, and policymaking roles. A registrant is required to disclose the information specified by Form N-CSR, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-CSR unless the Form displays a currently valid Office of Management and Budget ("OMB") control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. ss. 3507. ITEM 1. REPORTS TO STOCKHOLDERS. COLONIAL INVESTMENT GRADE MUNICIPAL TRUST SEMIANNUAL REPORT MAY 31, 2003 [photo of domed building] PRESIDENT'S MESSAGE DEAR SHAREHOLDER: The US bond market continued to reward investors with solid returns for the period covered by this report. As key economic indicators sent mixed signals, the US economy continued to struggle and interest rates declined. In November, the Federal Reserve Board lowered a key short-term interest rate--the federal funds rate--to 1.25%, a new low.1 The yield on the 10-year US Treasury bond fell to a 45-year low of 3.3% near the end of the period. Although the environment was favorable to bonds, declining interest rates and relatively low inflation raised the fear that deflation, which hasn't been seen since the 1930s, would return. Bonds reported gains across all sectors. Leadership rotated from higher quality bonds, which were the top performers in the previous period, to lower quality bonds. However, in the municipal sector, higher quality bonds outperformed high-yield issues. Taxable corporate and high-yield bonds also rebounded as investors became more willing to take on risk. The following report will provide you with more detailed information about the trust's performance and the investment strategies used by portfolio manager Maureen Newman. For more information, please contact your financial advisor. CONSOLIDATION AND A NEW NAME: COLUMBIA On April 1, 2003, six of the asset management firms brought together when Columbia Management Group, Inc. was formed were consolidated and renamed Columbia Management Advisors, Inc. (Columbia Management). This consolidation does not affect the management or investment objectives of your trust and is the next step in our efforts to create a consistent identity and to streamline our organization. Although the name of the asset manager familiar to you has changed, what hasn't changed is the commitment of our specialized investment teams to a multi-disciplined approach to investing, focused on our goal of offering shareholders the best products and services. As always, we thank you for choosing Colonial Investment Grade Municipal Trust and for giving us the opportunity to help you build a strong financial future. /s/ Joseph R. Palombo Joseph R. Palombo President -------------------------------------------------------------------------------- MEET THE NEW PRESIDENT Joseph R. Palombo is president of the Trust. He is also president and chairman of the Board of Trustees for Liberty Funds and chief operating officer and executive vice president of Columbia Management Advisors, Inc. (Columbia Management). Mr. Palombo has over 19 years of experience in the financial services industry. Prior to joining Columbia Management, he was chief operating officer and chief compliance officer for Putnam Mutual Funds. Prior to that, he was a partner at Coopers & Lybrand. Mr. Palombo received his degree in economics/accounting from the College of the Holy Cross, where he was a member of Phi Beta Kappa. He earned his master's degree in taxation from Bentley College and participated in the Executive Program at the Amos B. Tuck School at Dartmouth College. -------------------------------------------------------------------------------- NOT FDIC INSURED MAY LOSE VALUE NO BANK GUARANTEE 1 On June 25, 2003, the Federal Reserve Board cut the federal funds rate to 1.00%. Economic and market conditions change frequently. There is no assurance that the trends described in this report will continue or commence. PORTFOLIO MANAGER'S REPORT For the six-month period ended May 31, 2003, Colonial Investment Grade Municipal Trust returned 10.14%, based on net asset value. The trust did better than its peer group, the Lipper General Municipal Debt Funds (Leveraged) Category, which averaged a return of 9.31% for the same period.1 Municipal bonds, especially high-grade insured issues, rose in value as disappointing economic news and rising jobless claims drove interest rates lower. The trust benefited from its stake in zero coupon municipal bonds, which did especially well. Zero coupon bonds pay no interest and are purchased at a steep discount. These bonds appreciate to face value at maturity. They tend to outperform when interest rates are falling. The trust's preferred shares, which represent about one-third of total assets, also helped performance. The trust used the leverage provided by its preferred shares to invest in longer-term bonds that earned higher income than the short-term variable rate that the preferred shares paid out. US Airways bonds posted strong gains, while United Airlines (0.4% and 0.1% of net assets, respectively) and tobacco bonds faltered.2 Deterring performance to some extent were short positions in US Treasury futures contracts, which are employed to reduce the overall duration of the trust. About 90% of the trust's assets remained in investment grade issues. New additions included utilities such as Portland General, Pacificorp, and North Carolina Eastern Municipal Power (0.1%, 0.3% and 0.2% of net assets, respectively). These bonds offered attractive yields and relatively short maturities. We slowed our buying in health care, where cutbacks in Medicaid reimbursements have hurt nursing home and hospital bonds. To keep the trust's yield strong, we also added small positions in various high-yield, non-investment grade bonds. We expect bonds to do well as the economy slowly recovers and inflation remains tame. Demand will most likely remain strong for municipal bonds, which ended the period looking attractively priced compared to US Treasuries. We plan to remain focused on essential services bonds, which are backed by revenues from user fees. We also expect to continue to add small stakes in high-yield issues. /s/ Maureen G. Newman Maureen G. Newman is the portfolio manager of Colonial Investment Grade Municipal Trust and a senior vice president of Columbia Management Advisors, Inc. Ms. Newman received her BA in economics from Boston College and her MBA from Babson College. She is a Chartered Financial Analyst, a member of the Boston Security Analysts Society and former chairman of the National Federation of Municipal Analysts. ------------- 1 Lipper Inc., a widely respected data provider in the industry, calculates an average total return for mutual funds with similar investment objectives as those of the trust. 2 Holdings are disclosed as of May 31, 2003, and are subject to change. Past performance is no guarantee of future investment results. The principal value and investment returns will fluctuate, resulting in a gain or loss on sale. Tax-exempt investing offers current tax-free income, but it also involves certain risks. The value of the trust shares will be affected by interest rate changes and the creditworthiness of issues held in the trust. Investing in high yield securities offers the potential for high current income and attractive total return, but involves certain risks. Lower-rated bond risks include default of the issuer and rising interest rates. Interest income from certain tax-exempt bonds may be subject to the federal alternative minimum tax for individuals and corporations. PRICE PER SHARE AS OF 5/31/03 ($) Net asset value 11.77 ----------------------------- Market price 10.80 ----------------------------- SIX-MONTH TOTAL RETURNS (%) Net asset value 10.14 ----------------------------- Market price 10.57 ----------------------------- DISTRIBUTIONS DECLARED PER COMMON SHARE 12/1/02-5/31/03 ($) 0.34 ----------------------------- A portion of the trust's income may be subject to the alternative minimum tax. The trust may at times purchase tax-exempt securities at a discount from their original issue price. Some or all of this discount may be included in the trust's ordinary income, and any market discount is taxable when distributed. QUALITY BREAKDOWN AS OF 5/31/03 (%) (UNAUDITED) AAA 60.6 ----------------------------------- AA 15.8 ----------------------------------- A 5.0 ----------------------------------- BBB 7.7 ----------------------------------- BB 1.1 ----------------------------------- Non-rated 8.2 ----------------------------------- Cash equivalents 1.6 ----------------------------------- TOP 10 INDUSTRY SECTORS AS OF 5/31/03 (%) (UNAUDITED) Local general obligations 18.3 ----------------------------------- State appropriated 8.7 ----------------------------------- Hospitals 6.9 ----------------------------------- Education 6.2 ----------------------------------- Investor owned utilities 6.2 ----------------------------------- Refunded/escrowed 5.7 ----------------------------------- State general obligations 5.2 ----------------------------------- Special non-property tax 4.8 ----------------------------------- Water & sewer 4.1 ----------------------------------- Toll facilities 4.1 ----------------------------------- Quality breakdowns are calculated as a percentage of total investments, including short-term obligations. Ratings shown in the quality breakdown represent the highest rating assigned to a a particular bond by one of the following nationally-recognized rating agencies: Standard & Poor's Corporation, Moody's Investors Service, Inc. or Fitch Investors Service, Inc. Sector breakdowns are calculated as a percentage of net assets. Because the trust is actively managed, there can be no guarantee that the trust will continue to maintain this quality breakdown or invest in these sectors in the future. 1 INVESTMENT PORTFOLIO May 31, 2003 (Unaudited) MUNICIPAL BONDS - 97.4% PAR VALUE ----------------------------------------------------------- EDUCATION - 7.1% EDUCATION - 6.2% AL University of South Alabama, Series 1999, (a) 11/15/18 $2,500,000 $ 1,326,900 IL Chicago, State University Auxiliary Facilities, Series 1998, 5.500% 12/01/23 1,085,000 1,282,578 MA State Health & Educational Facilities Authority, Brandeis University, Series 1998 I, 4.750% 10/01/28 500,000 509,775 MA State Industrial Finance Agency, Tabor Academy, Series 1998, 5.400% 12/01/28 1,000,000 1,027,290 MN University of Minnesota: Series 1996 A, 5.750% 07/01/14 500,000 613,995 Series 1999 A, 5.500% 07/01/21 2,000,000 2,392,120 MO State Health & Educational Facilities Authority, Central Institute for the Deaf, Series 1999, 5.850% 01/01/22 600,000 663,618 NY St. Lawrence County Industrial Development Agency, St. Lawrence University, Series 1998 A, 5.500% 07/01/13 1,465,000 1,694,888 TX Texas Tech University, Series 1999, 5.000% 02/15/29 2,500,000 2,572,150 ------------ 12,083,314 ------------ STUDENT LOAN - 0.9% NE Nebhelp, Inc., Series 1993 A-6, 6.450% 06/01/18 1,500,000 1,757,235 ------------ ----------------------------------------------------------- HEALTH CARE - 10.4% CONGREGATE CARE RETIREMENT - 1.0% CA La Verne Certificates of Participation, Brethren Hillcrest Home, Series 2003 B, 6.625% 02/15/25 350,000 354,504 CT State Development Authority, Elim Park Baptist, Inc., Series 2003, 5.750% 12/01/23 250,000 260,607 FL Capital Projects Finance Authority, Glenridge on Palmer Ranch, Series 2002 A, 8.000% 06/01/32 500,000 510,105 HI State Department of Budget & Finance, Kahala Nui Project, Series 2003 A: 7.875% 11/15/23 250,000 251,385 8.000% 11/15/33 250,000 254,992 PAR VALUE ----------------------------------------------------------- TX Abilene Health Facilities Development Corp., Sears Methodist Retirement Obligation Group, Series 2003 A, 7.000% 11/15/33 $ 200,000 $ 201,370 ------------ 1,832,963 ------------ HOSPITALS - 6.9% FL Citrus County Hospital Board, Citrus Memorial Hospital, Series 2002, 6.375% 08/15/32 350,000 366,677 FL Orange County Health Facilities Authority, Orlando Regional Healthcare System: Series 1996 C, 6.250% 10/01/13 720,000 903,982 Series 1999, 6.000% 10/01/26 175,000 185,376 Series 2002, 5.750% 12/01/32 150,000 158,312 FL South Broward Hospital District, Series 2002, 5.625% 05/01/32 1,000,000 1,066,900 IL Southwestern Illinois Development Authority, Anderson Hospital, Series 1999, 5.375% 08/15/15 380,000 391,894 IL State Development Finance Authority, Adventist Health System, Series 1999, 5.500% 11/15/20 900,000 933,111 IL State Health Facilities Authority, Swedish American Hospital, Series 2000, 6.875% 11/15/30 500,000 552,015 KS University Hospital Authority, Kansas University Health System, Series 2002, 5.625% 09/01/32 500,000 526,665 LA Jefferson Parish Hospital Service District 2, Series 1998, 5.250% 07/01/12 1,000,000 1,113,140 LA State Public Facilities Authority, Touro Infirmary, Series 1999 A, 5.625% 08/15/29 500,000 514,410 MA State Health & Educational Facilities Authority, South Shore Hospital, Series 1999 F, 5.750% 07/01/29 1,000,000 1,038,830 MD State Health & Educational Facilities Authority, University of Maryland Medical System, Series 2000, 6.750% 07/01/30 250,000 281,405 MD State Health & Higher Education Facilities Authority, Adventist Healthcare, Series 2003 A: 5.000% 01/01/16 250,000 253,065 5.750% 01/01/25 250,000 258,808 See notes to investment portfolio. 2 INVESTMENT PORTFOLIO (CONTINUED) May 31, 2003 (Unaudited) MUNICIPAL BONDS (CONTINUED) PAR VALUE ----------------------------------------------------------- HEALTH CARE (CONTINUED) HOSPITALS (CONTINUED) MI Flint Hospital Building Authority, Hurley Medical Center, Series 1998 B, 5.375% 07/01/28 $ 500,000 $ 417,955 MN St. Paul Housing & Redevelopment Authority, Healtheast, Inc.: Series 1993 B, 6.625% 11/01/17 250,000 227,213 Series 1997 A, 5.700% 11/01/15 250,000 216,150 NH Higher Educational & Health Facilities, Catholic Medical Center, Series 1989, 6.125% 07/01/32 500,000 522,585 NV Henderson, Catholic Healthcare West, Series 1999 A, 6.750% 07/01/20 500,000 541,170 SC Lexington County Health Services District, Inc., Hospital Revenue, 5.500% 11/01/23 500,000 526,735 TN Metropolitan Government, Nashville & Davidson Counties, Meharry Medical College, Series 1996, 6.000% 12/01/16 1,575,000 1,949,677 TX Comal County Health Facilities Development, McKenna Memorial, Series 2002 A, 6.250% 02/01/32 500,000 519,800 ------------ 13,465,875 ------------ INTERMEDIATE CARE FACILITIES - 0.2% IL State Development Finance Authority, Hoosier Care, Inc., Series 1999 A, 7.125% 06/01/34 475,000 406,419 ------------ NURSING HOMES - 2.3% AK Juneau, St. Ann's Care Center, Series 1999, 6.875% 12/01/25 500,000 513,690 CO Health Care Facilities Authority, Pioneer Health Care, Series 1989, 10.500% 05/01/19 1,580,000 1,534,243 DE State Economic Development Authority, Churchman Village Project, Series 1991 A, 10.000% 03/01/21 905,000 979,119 PA Chester County Industrial Development Authority, RHA/Pennsylvania Nursing Home, Series 2002, 8.500% 05/01/32 765,000 752,462 PA Delaware County Authority, Main Line and Haverford Nursing, Series 1992, 9.000% 08/01/22 565,000 339,000 PAR VALUE ----------------------------------------------------------- WI State Health & Educational Facilities Authority, Metro Health Foundation, Inc., Series 1993, 11.000% 11/01/22 (b) $1,300,000 $ 442,000 ------------ 4,560,514 ------------ ----------------------------------------------------------- HOUSING - 3.0% ASSISTED LIVING/SENIOR - 0.3% TX Bell County Health Facilities Development Corp., Care Institute, Inc., Series 1994, 9.000% 11/01/24 475,000 487,925 ------------ MULTI-FAMILY - 2.5% AZ Maricopa County Industrial Development Authority, National Health Facilities II Project, 5.100% 01/01/33 2,500,000 2,610,525 FL Broward County Housing Finance Authority, Chaves Lake Apartment Project, Series 2000, 7.500% 07/01/40 500,000 513,170 FL Clay County Housing Finance Authority, Madison Commons Apartments, Series 2000 A, 7.450% 07/01/40 250,000 256,600 MN White Bear Lake, Birch Lake Townhome Project: Series 1989 A, 10.250% 07/15/19 775,000 786,858 Series 1989 B, (a) 07/15/19 (c) 675,000 457,640 Resolution Trust Corp., Pass Through Certificates, Series 1993 A, 8.500% 12/01/16 (d) 227,741 228,517 ------------ 4,853,310 ------------ SINGLE FAMILY - 0.2% CO State Housing Finance Authority, Series 2000 B-2, 7.250% 10/01/31 230,000 243,522 IL Chicago, Series 2000 A, 7.150% 09/01/31 200,000 210,452 ------------ 453,974 ------------ ----------------------------------------------------------- INDUSTRIAL - 1.7% FOOD PRODUCTS - 0.5% NE Washington County Waste Water Facilities, Cargill, Inc., Series 2002, 5.900% 11/01/27 1,000,000 1,056,210 ------------ FOREST PRODUCTS - 0.3% MN International Falls, Boise Cascade Corp., Series 1999, 6.850% 12/01/29 500,000 507,870 ------------ See notes to investment portfolio. 3 INVESTMENT PORTFOLIO (CONTINUED) May 31, 2003 (Unaudited) MUNICIPAL BONDS (CONTINUED) PAR VALUE ----------------------------------------------------------- INDUSTRIAL (CONTINUED) MANUFACTURING - 0.8% KS Wichita Airport Authority Facilities, Cessna Citation Service Center, Series 2002 A, 6.250% 06/15/32 $ 475,000 $ 493,573 MN Brooklyn Park, TL Systems Corp., Series 1991, 10.000% 09/01/16 805,000 831,798 MO State Development Finance Board, Procter & Gamble Co., Series 1999, 5.200% 03/15/29 250,000 276,530 ------------ 1,601,901 ------------ OIL & GAS - 0.1% TX Gulf Coast Industrial Development Authority, Citgo Petroleum, Series 1998, 8.000% 04/01/28 250,000 252,955 ------------ ----------------------------------------------------------- OTHER - 6.9% OTHER - 0.4% CA Golden State Tobacco Securitization Authority, Series 2003 A-1, 6.750% 06/01/39 250,000 234,085 SC Tobacco Settlement Revenue Management Authority, Series 2001 B, 6.375% 05/15/28 400,000 364,568 WI Badger Tobacco Asset Securitization Corp., Series 2002, 6.375% 06/01/32 250,000 223,927 ------------ 822,580 ------------ POOL/BOND BANK - 0.8% FL State Municipal Loan Council, Series 2000 A, (a) 04/01/21 520,000 232,268 KS State Development Finance Authority, Water Pollution Control, 5.500% 11/01/17 1,125,000 1,356,694 ------------ 1,588,962 ------------ REFUNDED/ESCROWED (e) - 5.7% CA San Joaquin Hills Transportation Corridor Agency, Series 1993, (a) 01/01/23 5,250,000 2,158,433 CA State Educational Facilities Authority, Santa Clara University, Series 1996, 5.000% 09/01/15 800,000 908,360 CT State Special Tax Obligation Infrastructure, Series 2001 A, 5.375% 10/01/16 500,000 592,865 DC District of Columbia, Series 1999 A, 5.375% 06/01/18 360,000 423,745 PAR VALUE ----------------------------------------------------------- DE State Economic Development Authority, Osteopathic Hospital Association of Delaware, Series 1992 A, 9.500% 01/01/22 $ 210,000 $ 230,288 FL Orange County Health Facilities Authority, Orlando Regional Healthcare System, Series 1996 C, 6.250% 10/01/13 1,740,000 2,219,701 MA State College Building Authority, Series 1999 A, (a) 05/01/23 2,710,000 1,095,301 MA State Development Finance Agency, Western New England College, 6.125% 12/01/32 315,000 327,490 NC Lincoln County, Lincoln County Hospital, Series 1991, 9.000% 05/01/07 85,000 99,983 NC State Municipal Power Agency, Catawba No. 1, Series 1986, 5.000% 01/02/20 1,670,000 1,894,465 TN Shelby County, Health, Education & Housing Facilities Board, Open Arms Development Center: Series 1992 A, 9.750% 08/01/19 425,000 557,600 Series 1992 C, 9.750% 08/01/19 425,000 557,715 ------------ 11,065,946 ------------ ----------------------------------------------------------- OTHER REVENUE - 0.8% RECREATION - 0.8% DC District of Columbia, Smithsonian Institute, Series 1997, 5.000% 02/01/28 1,000,000 1,028,390 FL Capital Trust Agency, Seminole Tribe Convention Center, Series 2002 A, 10.000% 10/01/33 500,000 568,655 ------------ 1,597,045 ------------ ----------------------------------------------------------- RESOURCE RECOVERY - 1.2% DISPOSAL - 0.6% IL Development Finance Authority, Waste Management, Inc., Series 1997, 5.050% 01/01/10 500,000 514,930 MA State Industrial Finance Agency, Peabody Monofill Associates, Inc., Series 1995, 9.000% 09/01/05 115,000 120,647 MI State Strategic Fund, Waste Management, Series 1995, 5.200% 04/01/10 500,000 522,765 ------------ 1,158,342 ------------ See notes to investment portfolio. 4 INVESTMENT PORTFOLIO (CONTINUED) May 31, 2003 (Unaudited) MUNICIPAL BONDS (CONTINUED) PAR VALUE ----------------------------------------------------------- RESOURCE RECOVERY (CONTINUED) RESOURCE RECOVERY - 0.6% MA State Industrial Finance Agency, Ogden Haverhill Project, Series 1998 A, 5.450% 12/01/12 $1,250,000 $ 1,220,625 ------------ ----------------------------------------------------------- TAX-BACKED - 39.9% LOCAL APPROPRIATED - 2.2% CA Los Angeles County, Series 1999 A, (a) 08/01/21 2,135,000 917,943 MN Hibbing Economic Development Authority, Series 1997, 6.400% 02/01/12 335,000 345,958 MO St. Louis Industrial Development Authority, St. Louis Convention Center, Series 2000, (a) 07/15/18 300,000 158,340 TX Houston, Series 2000, 6.400% 06/01/27 1,000,000 1,153,370 TX Houston Independent School District, Public Facilities Corp., Series 1998 A, (a) 09/15/13 2,500,000 1,698,750 ------------ 4,274,361 ------------ LOCAL GENERAL OBLIGATIONS - 18.3% AK North Slope Borough, Series 2001 A, (a) 06/30/12 2,000,000 1,439,940 CA Carlsbad Unified School District, Series 1997, (a) 05/01/22 2,730,000 1,121,074 CA Las Virgenes Unified School District, Series 2001 C, (a) 11/01/22 1,210,000 485,331 CA Modesto High School District, Stanislaus County, Capital Appreciation, Series 2002 A, (a) 08/01/19 1,350,000 657,409 CA Vallejo City Unified School District, Series 2002 A, 5.900% 08/01/25 2,000,000 2,483,920 CA West Contra Costa Unified School District, Series 2001 B, 6.000% 08/01/24 250,000 314,718 CO El Paso County School District No. 11, Colorado Springs, Series 1996, 7.125% 12/01/19 1,870,000 2,517,207 CO Highlands Ranch Metropolitan District, Series 1996, 6.500% 06/15/11 1,375,000 1,720,029 IL Chicago: Series 1995 A-2, 6.250% 01/01/14 1,480,000 1,847,824 Series 1999, 5.500% 01/01/23 1,000,000 1,181,240 Series 2001 A, (a) 01/01/15 3,000,000 1,885,260 PAR VALUE ----------------------------------------------------------- IL Chicago Board of Education, Series 1998 B-1: (a) 12/01/11 $1,000,000 $ 744,020 (a) 12/01/21 2,000,000 846,220 IL St. Clair County, Series 1999, (a) 10/01/16 2,000,000 1,154,940 IL St. Clair County Public Building Commission, Series 1997 B, (a) 12/01/13 2,000,000 1,351,040 IL Will County School District No. 17, Series 2001, 8.500% 12/01/15 1,400,000 2,094,820 MI Garden City School District, Series 2001, 5.500% 05/01/16 325,000 373,090 MI St. John's Public School, Series 1998, 5.100% 05/01/25 1,000,000 1,120,400 NY New York City: Series 1997 A, 7.000% 08/01/07 2,000,000 2,298,440 Series 2003 J, 5.500% 06/01/18 500,000 541,970 OH Kenston Local School District, Series 2003, 5.000% 12/01/23 1,000,000 1,069,010 PA Erie, Series 2001 C, (a) 11/15/26 2,000,000 648,360 TX Brenham, Certificates of Obligation, Series 2001, 5.375% 08/15/16 1,040,000 1,178,684 TX Dallas County Flood Control District, Series 2002, 7.250% 04/01/32 500,000 514,615 TX Houston Independent School District, Series 1999 A, 4.750% 02/15/22 5,000,000 5,107,450 TX La Joya Independent School District, Series 1998, 5.500% 02/15/12 1,000,000 1,124,390 ------------ 35,821,401 ------------ SPECIAL NON-PROPERTY TAX - 4.8% CA San Diego Redevelopment Agency, Capital Appreciation Tax Allocation Center, Series 2001, (a) 09/01/21 3,725,000 1,586,850 FL Tampa Sports Authority, Tampa Bay Arena Project, Series 1995, 5.750% 10/01/25 1,000,000 1,223,140 NM Dona Ana County, Series 1998, 5.500% 06/01/15 1,000,000 1,203,360 NY New York City Transitional Finance Authority, Series 1998 A, 5.000% 11/15/26 1,960,000 2,051,689 See notes to investment portfolio. 5 INVESTMENT PORTFOLIO (CONTINUED) May 31, 2003 (Unaudited) MUNICIPAL BONDS (CONTINUED) PAR VALUE ----------------------------------------------------------- TAX-BACKED (CONTINUED) SPECIAL NON-PROPERTY TAX (CONTINUED) NY State Local Government Assistance Corp., Series 1993 E, 5.000% 04/01/21 $3,000,000 $ 3,306,960 ------------ 9,371,999 ------------ SPECIAL PROPERTY TAX - 0.7% CA Contra Costa County Public Financing Authority, Series 1992 A, 7.100% 08/01/22 365,000 372,880 CA Huntington Beach Community Facilities District, Grand Coast Resort, Series 2001, 6.450% 09/01/31 300,000 313,686 FL Celebration Community Development District, Special Assessment, Series 2003 A, 6.400% 05/01/34 250,000 257,078 FL Double Branch Community Development District, Series 2002 A, 6.700% 05/01/34 335,000 345,395 FL Lexington Oaks Community Development District, Series 1998 B, 5.500% 05/01/05 10,000 10,108 ------------ 1,299,147 ------------ STATE APPROPRIATED - 8.7% IN State Office Building Commission, Women's Prison, Series 1995 B, 6.250% 07/01/16 2,820,000 3,597,700 KY State Property & Buildings Commission, Project No. 73, Series 2001, 5.500% 11/01/14 455,000 528,860 NY New York State Dormitory Authority: City University, Series 1993 A, 5.750% 07/01/18 5,000,000 6,120,300 Mental Health Services, Series 1998 C, 5.000% 02/15/11 1,485,000 1,627,025 State University, Series 2000 C, 5.750% 05/15/17 1,000,000 1,237,990 NY State Urban Development Corp., 5.600% 04/01/15 1,000,000 1,191,320 UT State Building Ownership Authority, Facilities Master Lease, Series 1998 C, 5.500% 05/15/19 1,750,000 2,091,863 WV State Building Commission, Series 1998 A, 5.375% 07/01/18 500,000 588,510 ------------ 16,983,568 ------------ PAR VALUE ----------------------------------------------------------- STATE GENERAL OBLIGATIONS - 5.2% CA State, Series 1995, 5.750% 03/01/19 $ 70,000 $ 74,883 DC District of Columbia, Series 1999 A, 5.375% 06/01/18 890,000 987,669 MA State, Series 1998 C, 5.250% 08/01/17 1,000,000 1,169,680 NJ State, Series 2001, 5.250% 07/01/16 2,000,000 2,360,260 PR Commonwealth of Puerto Rico, Aqueduct & Sewer Authority: Series 1995: 6.250% 07/01/12 1,000,000 1,260,400 6.250% 07/01/13 750,000 951,773 Series 2001, 5.500% 07/01/17 1,000,000 1,212,170 TX State, Series 1999 ABC, 5.500% 08/01/35 2,000,000 2,214,020 ------------ 10,230,855 ------------ ----------------------------------------------------------- TRANSPORTATION - 10.8% AIR TRANSPORTATION - 1.9% CA Los Angeles Regional Airport Improvement Corp., American Airlines, Inc., Series 2000 C, 7.500% 12/01/24 750,000 610,425 IL Chicago O'Hare International Airport, United Airlines, Inc., Series 2000 A, 6.750% 11/01/11 (b) 800,000 103,376 KY Kenton County Airport Board, Delta Airlines, Inc., Series 1992 A: 7.500% 02/01/12 250,000 215,180 7.500% 02/01/20 200,000 163,506 MN Minneapolis & St. Paul Metropolitan Airport Commission, Northwest Airlines, Series 2001 A, 7.000% 04/01/25 350,000 251,118 NC Charlotte, US Airways, Inc.: Series 1998, 5.600% 07/01/27 (f) 500,000 351,975 Series 2000, 7.750% 02/01/28 (f) 500,000 366,465 NY Port Authority of New York & New Jersey, JFK International Air Terminal, Series 1997, 6.250% 12/01/08 1,000,000 1,170,200 TX Houston Industrial Development Corp., Air Cargo, Perot Development, Series 2002, 6.000% 03/01/23 400,000 410,456 ------------ 3,642,701 ------------ See notes to investment portfolio. 6 INVESTMENT PORTFOLIO (CONTINUED) May 31, 2003 (Unaudited) MUNICIPAL BONDS (CONTINUED) PAR VALUE ----------------------------------------------------------- TRANSPORTATION (CONTINUED) AIRPORTS - 2.5% MA State Port Authority: Series 1998 D, 5.000% 07/01/28 $2,500,000 $ 2,580,975 Series 1999, IFRN, 9.870% 07/01/29 (g) 1,000,000 1,233,500 MN Minneapolis-St. Paul Metropolitan Airport Commission, Series 1998, 5.250% 01/01/13 1,000,000 1,093,110 ------------ 4,907,585 ------------ TOLL FACILITIES - 4.1% CA Foothill/Eastern Transportation Corridor Agency, Series 1995 A, 5.000% 01/01/35 1,000,000 961,600 CA San Joaquin Hills Transportation Corridor Agency, Series 1997 A, (a) 01/15/15 2,000,000 1,253,440 CO State Public Highway Authority, E-470, Series 1997 B, (a) 09/01/11 2,000,000 1,502,000 MA State Turnpike Authority, Series 1999 A: 4.750% 01/01/34 1,850,000 1,877,101 5.000% 01/01/39 1,000,000 1,029,910 NH State Turnpike Systems, Series 1991 C, IFRN, 12.111% 11/01/17 (g) 1,000,000 1,350,560 ------------ 7,974,611 ------------ TRANSPORTATION - 2.3% IL Regional Transportation Authority, Series 1994 C, 7.750% 06/01/20 1,000,000 1,460,980 NV State Department of Business & Industry, Las Vegas Monorail Project, Series 2000: 7.375% 01/20/30 250,000 232,507 7.375% 01/01/40 250,000 229,830 NY Metropolitan Transportation Authority, Series 2002 A, 5.000% 11/15/30 1,465,000 1,539,334 OH Toledo-Lucas County Port Authority, CSX Transportation, Inc., Series 1992, 6.450% 12/15/21 1,000,000 1,085,130 ------------ 4,547,781 ------------ ----------------------------------------------------------- UTILITIES - 15.6% INDEPENDENT POWER PRODUCERS - 0.6% MI Midland County Economic Development Corp., Series 2000, 6.875% 07/23/09 600,000 614,238 NY New York City Industrial Development Agency, Brooklyn Navy Yard Partners, Series 1997, 5.650% 10/01/28 200,000 185,058 PAR VALUE ----------------------------------------------------------- PR Commonwealth of Puerto Rico Industrial, Educational, Medical & Environmental Cogeneration Facilities, AES Project, Series 2000, 6.625% 06/01/26 $ 325,000 $ 342,570 ------------ 1,141,866 ------------ INVESTOR OWNED - 6.2% AZ Maricopa County Pollution Control Revenue, El Paso Electric Co., Series 2002 A, 6.250% 05/01/37 500,000 507,590 IN Petersburg, Indiana Power & Light Co., Series 1993 B, 5.400% 08/01/17 2,500,000 2,923,000 MI State Strategic Fund, Detroit Edison Co., Series 1998 A, 5.550% 09/01/29 3,000,000 3,199,590 MS State Business Finance Corp., Systems Energy Resources Project, Series 1998, 5.875% 04/01/22 1,000,000 997,080 MT Forsyth Pollution Control, Portland General, Series 1998 A, 5.200% 05/01/33 150,000 153,675 OH State Air Quality Development Authority, Cleveland Electric Illumination, Series 2002 A, 6.000% 12/01/13 850,000 894,948 TX Brazos River Authority, Pollution Control, TXU Electric Co.: Series 1999, 7.700% 04/01/33 250,000 276,505 Series 2001, 5.750% 05/01/36 500,000 510,335 TX Matagorda County Navigation District No.1, Houston Light & Power Co., Series 1997, 5.125% 11/01/28 2,000,000 2,116,340 WY Converse County Pollution Control, Pacificorp, Series 1988, 3.900% 01/01/14 500,000 500,415 ------------ 12,079,478 ------------ JOINT POWER AUTHORITY - 2.7% MA Municipal Wholesale Electric Co., Power Supply System, Project 6-A, 5.250% 07/01/14 1,000,000 1,141,810 NC Eastern Municipal Power Agency, Series 2003, 5.500% 01/01/16 (h) 285,000 301,969 See notes to investment portfolio. 7 INVESTMENT PORTFOLIO (CONTINUED) May 31, 2003 (Unaudited) MUNICIPAL BONDS (CONTINUED) PAR VALUE ----------------------------------------------------------- UTILITIES (CONTINUED) JOINT POWER AUTHORITY (CONTINUED) NC State Municipal Power Agency, Catawba Electric No. 1: Series 1998 A, 5.500% 01/01/15 $ 640,000 $ 761,037 Series 2003 A, 5.250% 01/01/18 2,500,000 2,810,250 OH Municipal Electricity Generation Agency, Series 2001, (a) 02/15/30 1,000,000 281,720 ------------ 5,296,786 ------------ MUNICIPAL ELECTRIC - 2.0% CA State Water Resources Authority, Series 2002 A, 5.500% 05/01/14 1,000,000 1,172,000 NC University of North Carolina at Chapel Hill, (a) 08/01/14 1,000,000 655,450 NE Public Power District, Series 1998 A, 5.250% 01/01/11 500,000 560,670 TN Metropolitan Government, Nashville & Davidson Counties, Series 1996 A, (a) 05/15/09 1,825,000 1,544,643 ------------ 3,932,763 ------------ WATER & SEWER - 4.1% GA Atlanta, Series 1993, 5.500% 11/01/22 (i) 1,000,000 1,184,680 MA State Water Resources Authority, Series 1998 A, 4.750% 08/01/27 3,000,000 3,040,290 MS Five Lakes Utility District, 8.250% 07/15/24 140,000 137,705 NY New York City Municipal Water Finance Authority, Water & Sewer System, Capital Appreciation, Series 1998 D, (a) 06/15/20 3,900,000 1,885,689 WA King County, Series 1999, 5.250% 01/01/30 1,750,000 1,867,495 ------------ 8,115,859 ------------ TOTAL MUNICIPAL BONDS (cost of $172,463,036) 190,394,726 ------------ MUNICIPAL PREFERRED STOCK - 0.3% SHARES ----------------------------------------------------------- HOUSING - 0.3% MULTI-FAMILY - 0.3% Charter Municipal Mortgage Acceptance Co., 7.600% 11/30/50 (d) 500,000 566,360 (cost of $500,000) ------------ PURCHASED PUT OPTION - 0.1% PAR VALUE ----------------------------------------------------------- U.S. Treasury Notes, Strike Price $46.875, Expires 08/31/03 $ 194,000 $ 90,937 (cost of $164,754) ------------ SHORT-TERM OBLIGATIONS - 1.6% ----------------------------------------------------------- VARIABLE RATE DEMAND NOTES (j) - 1.6% ID Health Facilities Authority Revenue, St. Luke's Regional Medical Center, 1.300% 05/01/22 700,000 700,000 IL Health Facilities Authority, OSF Healthcare System, Series 2002, 1.300% 11/15/27 1,400,000 1,400,000 MN Brooklyn Center, Brookdale Corp. III, Series 2001, 1.300% 12/01/07 200,000 200,000 MS Jackson County Pollution Control, Chevron USA, Inc., Series 1993, 1.250% 06/01/23 600,000 600,000 NM Farmington Pollution Control, Arizona Public Service, Series 1994 A, 1.300% 05/01/24 100,000 100,000 OK Development Finance Authority, Continuing Care Community, Series 2002 C, 1.350% 02/01/12 200,000 200,000 ------------ TOTAL SHORT TERM OBLIGATIONS (cost of $3,200,000) 3,200,000 ------------ TOTAL INVESTMENTS - 99.4% (cost of $176,327,790)(k) 194,252,023 ------------ OTHER ASSETS & LIABILITIES, NET - 0.6% 1,244,104 ----------------------------------------------------------- NET ASSETS* - 100.0% $195,496,127 ============ See notes to investment portfolio. 8 INVESTMENT PORTFOLIO (CONTINUED) May 31, 2003 (Unaudited) NOTES TO INVESTMENT PORTFOLIO: -------------------------------------------------------------------------------- (a) Zero coupon bond. (b) As of May 31, 2003, the Trust held securities of certain issuers that have filed for bankruptcy protection under Chapter 11, representing 0.3% of net assets. These issuers are in default of certain debt covenants. Income is not being accrued. (c) Denotes a restricted security, which is subject to restrictions on resale under federal securities laws. At May 31, 2003, the value of this security amounted to $457,640, which represents 0.2% of net assets. Additional information on this restricted security is as follows: Acquisition Acquisition Security Date Cost ---------------------------------------------------------------- MN White Bear Lake, Birch Lake Townhouse Project, Series 1989 B, (a) 07/15/19 07/19/89 $ 675,000 (d) This security is exempt from registration under Rule 144A of the Securities Act of 1933 and may be resold in transactions exempt from registration, normally to qualified institutional buyers. At May 31, 2003, the value of these securities amounted to $794,877, which represents 0.4% of net assets. (e) The Trust has been informed that each issuer has placed direct obligations of the U.S. Government in an irrevocable trust, solely for the payment of principal and interest. (f) This issuer is in default of certain debt covenants. Income is being fully accrued. (g) Interest rates on variable rate securities change periodically. The rate listed is as of May 31, 2003. (h) Settlement of this security is on a delayed delivery basis. (i) This security, or a portion thereof with a market value of $710,808, is being used to collateralize open futures contracts. (j) Variable rate demand notes are considered short-term obligations. Interest rates change periodically on specified dates. These securities are payable on demand and are secured by either letters of credit or other credit support agreements from banks. The rates listed are as of May 31, 2003. (k) Cost for federal income tax purposes is $176,087,214. Short futures contracts open at May 31, 2003: PAR VALUE UNREALIZED COVERED BY EXPIRATION DEPRECIATION TYPE CONTRACTS MONTH AT 05/31/03 -------------------------------------------------------------- 10 Year Municipal Bond Index $ 1,200,000 Jun-03 $(52,566) 10 Year U.S. Treasury Note 43,000,000 Sept-03 (36,086) -------- $(88,652) ========= ACRONYM NAME ----------------------------------------------------------- IFRN Inverse Floating Rate Note * Net assets represent both Common Shares and Auction Preferred Shares. See notes to financial statements. 9 STATEMENT OF ASSETS AND LIABILITIES May 31, 2003 (Unaudited) ASSETS: Investments, at cost $176,327,790 ------------ Investments, at value $194,252,023 Cash 8,804 Receivable for: Investments sold 579,150 Interest 2,749,383 Futures variation margin 28,750 Deferred Trustees' compensation plan 5,480 Other assets 14,628 ------------ Total Assets 197,638,218 ------------ LIABILITIES: Payable for: Investments purchased 1,041,970 Investments purchased on a delayed delivery basis 297,047 Distributions-- common shares 661,768 Distributions-- preferred shares 10,777 Management fee 104,876 Pricing and bookkeeping fees 1,924 Reports to shareholders 18,249 Deferred Trustees' fees 5,480 ------------ Total Liabilities 2,142,091 ------------ Auction Preferred Shares (2,400 shares issued and outstanding at $25,000 per share) $ 60,000,000 ------------ COMPOSITION OF NET ASSETS APPLICABLE TO COMMON SHARES: Paid-in capital -- common shares $126,993,094 Undistributed net investment income 761,239 Accumulated net realized loss (10,093,787) Net unrealized appreciation (depreciation) on: Investments 17,924,233 Futures contracts (88,652) ------------ Net assets at value applicable to 11,509,000 common shares of beneficial interest outstanding $135,496,127 ============ Net asset value per common share $ 11.77 ============ STATEMENT OF OPERATIONS For the Six Months Ended May 31, 2003 (Unaudited) INVESTMENT INCOME: Interest $ 5,169,068 ------------ EXPENSES: Management fee 616,331 Pricing and bookkeeping fees 43,522 Trustees' fees 4,834 Preferred shares remarketing commissions 74,880 Custody fee 3,147 Other expenses 68,532 ------------ Total Expenses 811,246 Custody earnings credit (158) ------------ Net Expenses 811,088 ------------ Net Investment Income 4,357,980 ------------ NET REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS AND FUTURES CONTRACTS: Net realized gain (loss) on: Investments 2,007,212 Futures contracts (3,435,382) ------------ Net realized loss (1,428,170) ------------ Net change in unrealized appreciation/ depreciation on: Investments 10,011,711 Futures contracts (274,183) ------------ Net change in unrealized appreciation/depreciation 9,737,528 ------------ Net Gain 8,309,358 ------------ Net Increase in Net Assets from Operations 12,667,338 ------------ LESS DISTRIBUTIONS DECLARED TO PREFERRED SHAREHOLDERS: From net investment income (337,005) ------------ Net Increase in Net Assets from Operations Applicable to Common Shares $12,330,333 ------------ See notes to financial statements. 10 STATEMENT OF CHANGES IN NET ASSETS (UNAUDITED) SIX MONTHS ENDED YEAR ENDED MAY 31, NOVEMBER 30, INCREASE (DECREASE) IN NET ASSETS: 2003 2002 -------------------------------------------------------------------------------------------------------------------------------- OPERATIONS: Net investment income $ 4,357,980 $ 9,004,083 Net realized loss on investments and futures contracts (1,428,170) (1,289,037) Net change in unrealized appreciation/depreciation on investments and futures contracts 9,737,528 654,972 ----------- ----------- Net Increase from Operations 12,667,338 8,370,018 ----------- ----------- LESS DISTRIBUTIONS DECLARED TO PREFERRED SHAREHOLDERS: From net investment income (337,005) (870,588) ----------- ----------- Increase in Net Assets from Operations Applicable to Common Shares 12,330,333 7,499,430 ----------- ----------- LESS DISTRIBUTIONS DECLARED TO COMMON SHAREHOLDERS: From net investment income (3,884,290) (7,722,539) ----------- ----------- Total Increase (Decrease) in Net Assets Applicable to Common Shares 8,446,043 (223,109) NET ASSETS APPLICABLE TO COMMON SHARES: Beginning of period 127,050,084 127,273,193 ----------- ----------- End of period (including undistributed net investment income of $761,239 and $624,554, respectively) $135,496,127 $127,050,084 ============ ============ NUMBER OF TRUST SHARES: Common Shares: Outstanding at end of period 11,509,000 11,509,000 ----------- ----------- Preferred Shares: Outstanding at end of period 2,400 2,400 ----------- ----------- See notes to financial statements. 11 NOTES TO FINANCIAL STATEMENTS May 31, 2003 (Unaudited) NOTE 1. ACCOUNTING POLICIES ORGANIZATION: Colonial Investment Grade Municipal Trust (the "Trust") is a Massachusetts business trust registered under the Investment Company Act of 1940 (the "Act"), as amended, as a diversified, closed-end management investment company. The Trust's investment goal is to seek as high a level of after-tax total return as is consistent with prudent risk, by pursuing current income generally exempt from ordinary federal income tax and opportunities for long-term appreciation from a portfolio primarily invested in investment grade municipal bonds. The Trust is authorized to issue an unlimited number of common shares of beneficial interest and 2,400 Auction Preferred Shares ("APS"). The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America 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 revenue and expenses during the reporting period. Actual results could differ from those estimates. The following is a summary of significant accounting policies consistently followed by the Trust in the preparation of its financial statements. SECURITY VALUATION AND TRANSACTIONS: Debt securities generally are valued by a pricing service based upon market transactions for normal, institutional-size trading units of similar securities. Such services may use various pricing techniques which take into account appropriate factors such as yield, quality, coupon rate, maturity, type of issue, trading characteristics and other data, as well as broker quotes. When management deems it appropriate, an over-the-counter or exchange bid quotation is used. Options are valued at the last sale price, or in the absence of a sale, the mean between the last quoted bid and asking price. Futures contracts are valued at the settlement price established each day by the board of trade or exchange on which they are traded. Short-term obligations with a maturity of 60 days or less are valued at amortized cost. Investments for which market quotations are not readily available, or quotations which management believes are not appropriate, are valued at fair value under procedures approved by the Board of Trustees. Security transactions are accounted for on the date the securities are purchased, sold or mature. Cost is determined and gains (losses) are based upon the specific identification method for both financial statement and federal income tax purposes. The Trust may trade securities on other than normal settlement terms. This may increase the risk if the other party to the transaction fails to deliver and causes the Trust to subsequently invest at less advantageous prices. FEDERAL INCOME TAXES: Consistent with the Trust's policy to qualify as a regulated investment company and to distribute all of its taxable and tax-exempt income, no federal income tax has been accrued. INTEREST INCOME, DEBT DISCOUNT AND PREMIUM: Interest income is recorded on the accrual basis. Premium and discount are being amortized and accreted, respectively, for all debt securities. DISTRIBUTIONS TO SHAREHOLDERS: Distributions to common shareholders are recorded on the ex-date. Distributions to preferred shareholders are recorded daily and are payable at the end of each dividend period. Each dividend payment period for the APS is generally seven days. The applicable dividend rate for the APS on May 31, 2003 was 1.19%. For the six months ended May 31, 2003, the Trust declared dividends to Auction Preferred shareholders amounting to $337,005 representing an average APS dividend rate of 1.13%. NOTE 2. FEDERAL TAX INFORMATION Income and capital gain distributions are determined in accordance with income tax regulations, which may differ from accounting principles generally accepted in the United States of America. The following capital loss carryforwards, determined as of November 30, 2002, are available to reduce taxable income arising from future net realized gains on investments, if any, to the extent permitted by the Internal Revenue Code: YEAR OF CAPITAL LOSS EXPIRATION CARRYFORWARD ---------- ------------ 2003 $ 172,808 2004 1,454,485 2008 3,464,384 2010 1,238,884 ---------- $6,330,561 ========== 12 NOTES TO FINANCIAL STATEMENTS (CONTINUED) May 31, 2003 (Unaudited) 3. FEE AND COMPENSATION PAID TO AFFILIATES MANAGEMENT FEE: On April 1, 2003, Colonial Management Associates, Inc. ("Colonial"), the previous investment advisor to the Trust merged into Columbia Management Advisors, Inc. ("Columbia"), formerly known as Columbia Management Co., an indirect, wholly-owned subsidiary of FleetBoston Financial Corporation. At the time of the merger, Columbia assumed the obligations of Colonial with respect to the Trust. The merger did not change the way the Trust is managed, the investment personnel assigned to manage the Trust or the fees paid by the Trust to Columbia. Columbia is the investment advisor of the Trust and furnishes accounting and other services and office facilities for a fee to be paid monthly at the annual rate of 0.65% of the Trust's average weekly net assets, including assets applicable to the APS. PRICING AND BOOKKEEPING FEES: Columbia is responsible for providing pricing and bookkeeping services to the Trust under a Pricing and Bookkeeping Agreement. Under a separate agreement (the "Outsourcing Agreement"), Columbia has delegated those functions to State Street Bank and Trust Company ("State Street"). Columbia pays fees to State Street under the Outsourcing Agreement. Under its pricing and bookkeeping agreement with the Trust, Columbia receives from the Trust an annual flat fee of $10,000, paid monthly, and in any month that the Trust's average weekly net assets, including assets applicable to the APS, are more than $50 million, a monthly fee equal to the average weekly net assets, including assets applicable to the APS, of the Trust for that month multiplied by a fee rate that is calculated by taking into account the fees payable to State Street under the Outsourcing Agreement. For the six months ended May 31, 2003, the annualized net asset based fee rate was 0.033%. The Trust also pays out-of-pocket costs for pricing services. OTHER: The Trust pays no compensation to its officers, all of whom are employees of Columbia or its affiliates. The Trust's Independent Trustees may participate in a deferred compensation plan which may be terminated at any time. Obligations of the plan will be paid solely out of the Trust's assets. The Trust has an agreement with its custodian bank under which $158 of custody fees were reduced by balance credits for the six months ended May 31, 2003. The Trust could have invested a portion of the assets utilized in connection with the expense offset arrangement in an income-producing asset if it had not entered into such an agreement. NOTE 4. PREFERRED SHARES The Trust currently has outstanding 2,400 APS. The APS are redeemable at the option of the Trust on any dividend payment date at the redemption price of $25,000 per share, plus an amount equal to any dividends accumulated on a daily basis unpaid through the redemption date (whether or not such dividends have been declared). Under the Act, the Trust is required to maintain asset coverage of at least 200% with respect to the APS as of the last business day of each month in which any APS are outstanding. Additionally, the Trust is required to meet more stringent asset coverage requirements under the terms of the APS Agreement and in accordance with the guidelines prescribed by the APS' rating agencies. Should these requirements not be met, or should dividends accrued on the APS not be paid, the Trust may be restricted in its ability to declare dividends to common shareholders or may be required to redeem certain of the APS. At May 31, 2003, there were no such restrictions on the Trust. NOTE 5. PORTFOLIO INFORMATION INVESTMENT ACTIVITY: For the six months ended May 31, 2003, purchases and sales of investments, other than short-term obligations, were $13,930,136 and $18,180,098, respectively. Unrealized appreciation (depreciation) at May 31, 2003, based on cost of investments for federal income tax purposes, was: Gross unrealized appreciation $22,989,528 Gross unrealized depreciation (4,824,719) ----------- Net unrealized appreciation $18,164,809 =========== FUTURES CONTRACTS AND OPTIONS: The Trust may invest in municipal and U.S. Treasury futures contracts. The Trust will invest in these instruments to hedge against the effects of changes in the value of portfolio securities due to anticipated changes in interest rates and/or market conditions, for duration management, or when the transactions are economically appropriate to the reduction of risk inherent in the management of the Trust and not for trading purposes. The use of futures contracts involves certain risks, which include: (1) imperfect correlation between the price movement of the instruments and the underlying securities, (2) inability to close out positions due to different trading hours, or the temporary absence of a liquid market, for either the instrument or the underlying securities, or (3) an inaccurate prediction by Columbia of the future direction of interest rates. Any of these risks may involve amounts exceeding the variation margin recorded in the Trust's Statement of Assets and Liabilities at any given time. 13 NOTES TO FINANCIAL STATEMENTS (CONTINUED) May 31, 2003 (Unaudited) Upon entering into a futures contract, the Trust deposits cash or securities with its custodian in an amount sufficient to meet the initial margin requirement. Subsequent payments are made or received by the Trust equal to the daily change in the contract value and are recorded as variation margin payable or receivable and offset in unrealized gains or losses. The Trust recognizes a realized gain or loss when the contract is closed or expires. The Trust may write call and put options on futures it owns or in which it may invest. Writing put options tends to increase the Trust's exposure to the underlying instrument. Writing call options tends to decrease the Trust's exposure to the underlying instrument. When the Trust writes a call or put option, an amount equal to the premium received is recorded as a liability and subsequently marked-to-market to reflect the current value of the option written. Premiums received from writing options which expire are treated as realized gains. Premiums received from writing options which are exercised or closed are added to the proceeds or offset against the amounts paid on the underlying future transaction to determine the realized gain or loss. The Trust as a writer of an option has no control over whether the underlying future may be sold (call) or purchased (put) and as a result bears the market risk of an unfavorable change in the price of the future underlying the written option. There is the risk the Trust may not be able to enter into a closing transaction because of an illiquid market. The Trust may also purchase put and call options. Purchasing call options tends to increase the Trust's exposure to the underlying instrument. Purchasing put options tends to decrease the Trust's exposure to the underlying instrument. The Trust pays a premium which is included in the Trust's Statement of Assets and Liabilities as an investment and subsequently marked-to-market to reflect the current value of the option. Premiums paid for purchasing options which expire are treated as realized losses. The risk associated with purchasing put and call options is limited to the premium paid. Premiums paid for purchasing options which are exercised or closed are added to the amounts paid or offset against the proceeds on the underlying future transaction to determine the realized gain or loss. Refer to the Trust's Investment Portfolio for a summary of open futures contacts at May 31, 2003. OTHER: The Trust had greater than 10% of its net assets, at May 31, 2003, invested in issuers located in New York and Texas. There are certain risks arising from geographic concentration in any state. Certain revenue or tax related events in a state may impair the ability of certain issuers of municipal securities to pay principal and interest on their obligations. The Trust may focus its investments in certain industries, subjecting it to greater risk than a trust that is more diversified. 14 FINANCIAL HIGHLIGHTS Selected data for a share outstanding throughout each period is as follows (common shares unless otherwise noted): (UNAUDITED) SIX MONTHS PERIOD ENDED YEAR ENDED NOVEMBER 30, ENDED YEAR ENDED DECEMBER 31, MAY 31, ----------------------------------- NOVEMBER 30, ------------------------ 2003 2002 2001 2000 1999 (a) 1998 1997 ---------------------------------------------------------------------------------------------------------------------------------- NET ASSET VALUE, BEGINNING OF PERIOD $ 11.04 $ 11.06 $ 10.55 $ 10.31 $ 11.49 $ 11.43 $ 10.87 --------- --------- --------- --------- --------- --------- --------- INCOME FROM INVESTMENT OPERATIONS: Net investment income 0.38(b) 0.78(b)(c) 0.75(b) 0.81(d) 0.58 0.60 0.62 Net realized and unrealized gain (loss) on investments and futures contracts 0.72 (0.05)(c) 0.52 0.27 (1.12) 0.07 0.58 --------- --------- --------- --------- --------- --------- --------- Total from Investment Operations 1.10 0.73 1.27 1.08 (0.54) 0.67 1.20 --------- --------- --------- --------- --------- --------- --------- LESS DISTRIBUTIONS DECLARED TO PREFERRED SHAREHOLDERS: From net investment income (0.03) (0.08) (0.16) (0.22) (0.05) -- -- --------- --------- --------- --------- --------- --------- --------- Total from Investment Operations Applicable to Common Shareholders 1.07 0.65 1.11 0.86 (0.59) 0.67 1.20 --------- --------- --------- --------- --------- --------- --------- LESS DISTRIBUTIONS DECLARED TO COMMON SHAREHOLDERS: From net investment income (0.34) (0.67) (0.60) (0.60) (0.52) (0.61) (0.64) In excess of net investment income -- -- -- -- -- --(e) -- --------- --------- --------- --------- --------- --------- --------- Total Distributions Declared to Common Shareholders (0.34) (0.67) (0.60) (0.60) (0.52) (0.61) (0.64) --------- --------- --------- --------- --------- --------- --------- LESS SHARE TRANSACTIONS: Commission and offering costs -- preferred shares -- -- -- (0.02) (0.07) -- -- --------- --------- --------- --------- --------- --------- --------- NET ASSET VALUE, END OF PERIOD $ 11.77 $ 11.04 $ 11.06 $ 10.55 $ 10.31 $ 11.49 $ 11.43 ========= ========= ========= ========= ========= ========= ========= Market price per share -- common shares $ 10.80 $ 10.09 $ 10.87 $ 8.92 $ 9.06 $ 11.19 $ 10.56 ========= ========= ========= ========= ========= ========= ========= Total return -- based on market value -- common shares (f) 10.57%(g) (1.10)% 29.28% 5.20% (14.64)%(g) 11.94% 10.76% ========= ========= ========= ========= ========= ========= ========= RATIOS TO AVERAGE NET ASSETS/ SUPPLEMENTAL DATA: Expenses (h)(i) 1.25%(j) 1.28% 1.28% 1.31% 1.03%(j) 0.77% 0.83% Net investment income before preferred stock dividend (h)(i) 6.70%(j) 7.06%(c) 6.80% 7.91% 5.75%(j) 5.24% 5.63% Net investment income after preferred stock dividend (h)(i) 6.19%(j) 6.38%(c) 5.38% 5.80% 5.26%(j) 5.24% 5.63% Portfolio turnover rate 7%(g) 10% 31% 23% 25%(g) 24% 21% Net assets, end of period (000's)-- common shares $ 135,496 $ 127,050 $ 127,273 $ 121,366 $ 118,660 $ 132,242 $ 131,503 (a)The Trust changed its fiscal year end from December 31 to November 30. (b)Per share data was calculated using average shares outstanding during the period. (c)Effective December 1, 2001, the Trust adopted the provisions of the AICPA Audit and Accounting Guide for Investment Companies and began accreting market discount on all debt securities. The effect of this change for the year ended November 30, 2002, was to increase net investment income per share by $0.01, increase net realized and unrealized loss per share by $0.01, increase the ratio of net investment income to average net assets from 6.98% to 7.06% and increase the ratio of net investment income (adjusted for dividend payments to preferred shareholders) from 6.30% to 6.38%. Per share data and ratios for periods prior to November 30, 2002 have not been restated to reflect this change in presentation. (d)The per share net investment income amount does not reflect the period's reclassification of differences between book and tax basis net investment income. (e)Rounds to less than $0.01 per share. (f)Total return at market value assuming all distributions reinvested at prices calculated in accordance with the Dividend Reinvestment Plan. (g)Not annualized. (h)The benefits derived from custody credits and directed brokerage arrangements, if applicable, had an impact of less than 0.01%. (i)Ratios reflect average net assets available to common shares only. (j)Annualized. ASSET COVERAGE REQUIREMENTS INVOLUNTARY ASSET LIQUIDATING AVERAGE TOTAL AMOUNT COVERAGE PREFERENCE MARKET VALUE OUTSTANDING PER SHARE PER SHARE PER SHARE --------------------------------------------------------------------------------------------------------------- 05/31/03 * $60,000,000 $81,457 $25,004 $25,000 11/30/02 60,000,000 77,937 25,000 25,000 11/30/01 60,000,000 78,030 25,005 25,000 11/30/00 60,000,000 75,569 25,009 25,000 11/30/99** 60,000,000 74,444 25,003 25,000 * Unaudited. ** On August 26, 1999, the Trust began offering Auction Preferred Shares. 15 FINANCIAL HIGHLIGHTS (CONTINUED) Selected data for a share outstanding throughout each period is as follows (common shares unless otherwise noted): YEAR ENDED DECEMBER 31, ----------------------------------------------------------------- 1996 1995 1994 1993 1992 ---------------------------------------------------------------------------------------------------------------------------------- NET ASSET VALUE, BEGINNING OF PERIOD $ 11.05 $ 9.93 $ 11.05 $ 10.96 $ 11.09 --------- ---------- --------- --------- --------- INCOME FROM INVESTMENT OPERATIONS: Net investment income 0.63 0.64 0.67 0.79 0.85 Net realized and unrealized gain (loss) on investments and futures contracts (0.19) 1.11 (1.12) 0.09 (0.13) --------- ---------- --------- --------- --------- Total Income from Investment Operations 0.44 1.75 (0.45) 0.88 0.72 --------- ---------- --------- --------- --------- LESS DISTRIBUTIONS DECLARED TO COMMON SHAREHOLDERS: From net investment income (0.62) (0.63) (0.67) (0.79) (0.85) --------- ---------- --------- --------- --------- NET ASSET VALUE, END OF PERIOD $ 10.87 $ 11.05 $ 9.93 $ 11.05 $ 10.96 ========= ========== ========= ========= ========= Market price per share -- common shares $ 10.13 $ 9.88 $ 9.25 $ 10.75 $ 11.75 ========= ========== ========= ========= ========= Total return - based on market value -- common shares (a) 9.06% 13.87% (8.12)% (2.16)% 7.43% ========= ========== ========= ========= ========= RATIOS TO AVERAGE NET ASSETS/SUPPLEMENTAL DATA: Expenses (b) 0.88% 1.08% 0.94% 0.87% 0.86% Net investment income (b) 5.80% 6.08% 6.46% 7.08% 7.76% Portfolio turnover rate 20% 37% 34% 35% 18% Net assets, end of period (000's) - common shares $ 125,125 $ 127,118 $ 114,260 $ 127,213 $ 126,169 (a)Total return at market value assuming all distributions reinvested at prices calculated in accordance with the Dividend Reinvestment Plan. (b)The benefits derived from custody credits and directed brokerage arrangements, if applicable, had an impact of less than 0.01%. 16 SHAREHOLDER MEETING RESULTS RESULTS OF THE ANNUAL MEETING OF SHAREHOLDERS On May 21, 2003, the Annual Meeting of Shareholders of the Trust was held to conduct a vote for or against the approval of the items listed on the Trust's Proxy Statement for said Meeting. On February 28, 2003, the record date for the Meeting, the Trust had 11,509,000 common shares outstanding. The votes cast were as follows: PROPOSAL 1. ELECTION OF TRUSTEES: FOR AGAINST ---------------------------- --------------- ------------- Janet Langford Kelly 10,322,219 160,838 Joseph R. Palombo 10,329,021 154,036 On February 28, 2003, the record date for the Meeting, the Trust had 2,400 preferred shares outstanding. The votes cast were as follows: PROPOSAL 1. ELECTION OF TRUSTEES: FOR WITHHELD --------------------------- --------------- ------------- Douglas A. Hacker 2,396 0 Janet Langford Kelly 2,396 0 Joseph R. Palombo 2,396 0 Thomas E. Stitzel 2,396 0 17 DIVIDEND REINVESTMENT PLAN COLONIAL INVESTMENT GRADE MUNICIPAL TRUST Pursuant to the Trust's Dividend Reinvestment Plan (the "Plan"), all shareholders whose shares are registered in their own names will have all distributions reinvested automatically in additional shares of the Trust by EquiServe Trust Company, N.A. (the "Plan Agent") unless a shareholder elects to receive cash. Shareholders whose shares are held in the name of a broker or nominee will have distributions reinvested automatically by the broker or nominee in additional shares under the Plan, unless the service is not provided by the broker or the nominee or the shareholder elects to receive distributions in cash. If the service is not available, such distributions will be paid in cash. Shareholders whose shares are held in the name of a broker or nominee should contact the broker or nominee for details. All distributions to shareholders who elect not to participate in the Plan will be paid by check mailed directly to the shareholder of record on the record date therefore by the Plan Agent as the dividend disbursing agent. Non-participants in the Plan will receive distributions in cash. Distributions payable to participants in the Plan will be applied by the Plan Agent, acting as agent for Plan participants, to the purchase of shares of the Trust. Such shares will be purchased by the Plan Agent at the then current market price of such shares in the open market, on the New York Stock Exchange or elsewhere, for the participants' accounts. Participants in the Plan may withdraw from the Plan upon written notice to the Plan Agent. When a participant withdraws from the Plan or upon termination of the Plan as provided below, certificates for whole shares credited to his account under the Plan will be issued and a cash payment will be made for any fraction of a share credited to such account. A shareholder's notice of election to withdraw from the Plan must be received by the Plan Agent before the record date for a dividend in order to be given effect with respect to that dividend. In the case of shareholders such as banks, brokers or nominees holding shares for others who are the beneficial owners of those shares, the Plan Agent will administer the Plan on the basis of the number of shares certified from time to time by the shareholder of record as representing the total amount registered in such shareholder's name and held for the account of beneficial owners who are to participate in the Plan. There is no charge to Plan participants for reinvesting distributions. The Plan Agent's fees for the handling of the reinvestment of distributions will be paid by the Trust. Each participant in the Plan will pay a pro rata share of brokerage commissions incurred with respect to the Plan Agent's open market purchases in connection with the reinvestment of distributions. Purchase orders from the participants in the Plan may be combined with those of other participants and the price paid by any particular participant may be the average of the price paid on various orders executed on behalf of groups of participants in the Plan. The automatic reinvestment of distributions will not relieve participants of any income tax that may be payable on such dividends or distributions. The Plan may be amended or terminated on 30 days' written notice to Plan participants. All correspondence concerning the Plan should be directed to EquiServe Trust Company, N.A., by mail at P.O. Box 43010, Providence, RI 02940-3010, or by phone at 1-800-730-6001. 18 This page intentionally left blank. This page intentionally left blank. TRANSFER AGENT -------------------------------------------------------------------------------- IMPORTANT INFORMATION ABOUT THIS REPORT The Transfer Agent for Colonial Investment Grade Municipal Trust is: EquiServe Trust Company, N.A. 150 Royall Street Canton, MA 02021 The trust mails one shareholder report to each shareholder address. Shareholders can order additional reports by calling 800-730-6001. In addition, representatives at that number can provide shareholders information about the trust. Financial advisors who want additional information about the trust may speak to a representative at 800-426-3750. This report has been prepared for shareholders of Colonial Investment Grade Municipal Trust. COLONIAL INVESTMENT GRADE MUNICIPAL TRUST SEMIANNUAL REPORT 130-03/241O-0503 (07/03) 03/1844 ITEM 2. CODE OF ETHICS. Not applicable at this time. ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT. Not applicable at this time. ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES Not applicable at this time. ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS Not applicable at this time. ITEM 6. [RESERVED] ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES Not applicable at this time. ITEM 8. [RESERVED] ITEM 9. CONTROLS AND PROCEDURES. (a) The Registrant's Chief Executive Officer and Chief Financial Officer, based on their evaluation of the Registrant's disclosure controls and procedures as of June 20, 2003, have concluded that such controls and procedures are adequately designed to ensure that information required to be disclosed by the Registrant in its reports that it files or submits under the Securities Exchange Act of 1934, as amended, is accumulated and communicated to the Registrant's management, including the Chief Executive Officer and Chief Financial Officer, or persons performing similar functions, as appropriate, to allow timely decisions regarding required disclosure. (b) There were no significant changes in the registrant's internal controls or in other factors that could affect these controls subsequent to the date of our evaluation. ITEM 10. EXHIBITS. File the exhibits listed below as part of this Form. Letter or number the exhibits in the sequence indicated. (a) 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: Not applicable at this time. (b) 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) in the exact form set forth below: Attached hereto. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. (Registrant) Colonial Investment Grade Municipal Trust ----------------------------------------------------------- By (Signature and Title)* /s/ Joseph R. Palombo ---------------------------------------------- Joseph R. Palombo, President Date August 6, 2003 ------------------------------------------------------------------- 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)* /s/ Joseph R. Palombo ---------------------------------------------- Joseph R. Palombo, President Date August 6, 2003 ------------------------------------------------------------------- By (Signature and Title)* /s/ J. Kevin Connaughton ---------------------------------------------- J. Kevin Connaughton, Treasurer Date August 6, 2003 ------------------------------------------------------------------- * Print the name and title of each signing officer under his or her signature.