<Page> OMB APPROVAL OMB Number: 3235-0570 Expires: Nov. 30, 2005 Estimated average burden hours per response: 5.0 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 811-09675 ---------------------------------- Boston Advisors Trust ----------------------------------------------------------- (Exact name of registrant as specified in charter) One Federal Street, Boston, MA 02110 -------------------------------------------------------- ------------ (Address of principal executive offices (Zip code) Michael J. Vogelzang, Chief Executive Officer One Federal Street, Boston, MA 02110 ---------------------------------------------- (Name and address of agent for service) Registrant's telephone number, including area code: 800-523-5903 ------------- Date of fiscal year end: 04/30/2003 ---------------------------- Date of reporting period: 05/01/02 - 04/30/03 --------------------------- <Page> ITEM 1 (REPORT TO SHAREHOLDERS): The Annual Report is attached. <Page> APRIL 30, 2003 ANNUAL REPORT MICHAEL J. VOGELZANG, CFA, PRESIDENT Over the past six months the Boston Advisors Funds navigated safely through roiled and troubled economic terrain, starting with fears of war and ending with fears of deflation. In this Annual Report to shareholders we review the domestic investing environment and discuss the nature and characteristics of the portfolios within the Boston Advisors Trust. ECONOMIC AND INVESTING ENVIRONMENTS: Economic growth stalled during the last two quarters as consumers focused attention on the war in Iraq, rising unemployment, and the growing potential for general price deflation. The war's end did not bring the widely anticipated reinvigoration in consumer spending, resulting in year-over-year 1st quarter economic growth slowing to 2.1%. During the same period unemployment rose to 6.0% while core consumer prices declined to 1.5% year-over-year. Weak economic growth allowed the Federal Reserve to maintain its target for short-term interest rates. Since the end of formal hostilities in Iraq, evidence has continued to point toward sub-par growth and the potential of declining prices (turning into deflation) has risen to a point of concern. In its May 6th press release the Federal Open Market Committee (FOMC) acknowledged that "the timing and extent of [economic] improvement remain uncertain" and that "the upside and downside risks to the attainment of sustainable growth are roughly equal". Importantly, the FOMC noted "the probability of an unwelcome substantial fall in inflation... exceeds that of a pickup in inflation from its already low level." Most central banks have accepted an (informal) inflation target of about 2%. With core consumer prices in the U.S. beneath this level, and other measures of inflation such as producer prices even lower, it is likely the Fed will find it necessary to reduce rates further to head off deflation. Putting aside the cynical motivation to lower short-term interest rates to stimulate the economy and further a political agenda, the Fed's concern about deflation has pushed interest rates lower in anticipation of further Fed action. Money market yields declined over the last two quarters in response to the lagged reinvestment effect of the November 1/2% interest rate cut. While the current Fed Funds target is 1.25%, the market is already anticipating an additional 25 basis point decline at the June 25th FOMC meeting. It is clear the Fed is bringing its full power to bear in combating price deflation and to breathe new life into the economy. We are optimistic about the Fed's success. PORTFOLIO REVIEWS CASH RESERVES FUND - - The Portfolio invests only in high-quality obligors as ranked by nationally recognized statistical rating organizations. This emphasis on quality, coupled with broad diversification among issuers and sectors, enhances the fund's stability and liquidity -- important considerations in this challenging economic environment. As of April 30th, the portfolio consisted of commercial paper (43%), certificates of deposit (19%), variable rate notes (11%), repurchase agreements (8%), U.S. Government Agency Obligations (7%), bankers' acceptances (2%), corporate debt (1%), and money market funds (9%). Money market funds are used as a higher yielding alternative to overnight repurchase agreements for a portion of the overnight investments. 1 <Page> U.S. GOVERNMENT FUND - - The Portfolio invests exclusively in short-term U.S. government securities, including those guaranteed by any of its agencies or instrumentalities, and repurchase agreements based upon these securities. As of April 30th, the portfolio consisted of U.S. government agency obligations (83%), of which variable rates were 18%, repurchase agreements (13%), and money market funds (4%). TAX FREE FUND - - The Portfolio invests in high quality short-term municipal obligations as ranked by nationally recognized statistical rating organizations. This high quality, coupled with broad diversification among issuers and sectors, helps provide stability and liquidity in today's challenging economic environment. As of April 30th, the portfolio consisted of daily and weekly floating rate issues (69%), notes and bonds (17%), commercial paper (5%), prerefunded obligations (5%), and money market funds (4%). NEW YORK MUNICIPAL FUND - - The Portfolio invests only in high-quality short-term municipal securities with income exempt from regular federal income tax and from New York State and New York City personal income taxes. As of April 30th, the portfolio consisted of daily and weekly floating-rate issues (75%), commercial paper (18%), and notes and bonds (7%). 2 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- CASH RESERVES FUND SCHEDULE OF INVESTMENTS - APRIL 30, 2003 - -------------------------------------------------------------------------------- <Table> <Caption> SECURITY DESCRIPTION RATE MATURITY PRINCIPAL AMORTIZED COST - ------------------------------------------------------------------------------------------- ASSET-BACKED COMMERCIAL PAPER -- 16.1% BANKING -- 13.8% Golden Funding Corporation 1.270% 05/12/2003 $ 25,512,000 $ 25,502,100 Montauk Funding Corporation 1.250% 05/13/2003 15,000,000 14,993,750 Starfish Global Funding LLC 1.260% 05/14/2003 35,915,000 35,898,659 Stellar Funding Group 1.260% 05/01/2003 16,917,000 16,917,000 Tannehill Capital Co. LLC 1.300% 07/23/2003 30,000,000 29,998,655 Three Pillars Funding Corporation 1.260% 05/09/2003 24,460,000 24,453,151 Windmill Funding Corporation 1.270% 05/08/2003 30,000,000 29,992,591 -------------- 177,755,906 -------------- FINANCIAL SERVICES -- 2.3% Lockhart Funding LLC 1.360% 07/30/2003 30,000,000 29,898,000 -------------- TOTAL ASSET-BACKED COMMERCIAL PAPER 207,653,906 -------------- BANKERS ACCEPTANCE -- 1.5% BANKING -- 1.5% Wachovia Bank, NA 1.260% 08/21/2003 20,000,000 19,921,600 -------------- TOTAL BANKERS ACCEPTANCE 19,921,600 -------------- CERTIFICATES OF DEPOSIT -- 18.6% BANKING -- 18.6% Bank of America Corporation 1.250% 06/25/2003 20,000,000 20,000,000 Canadian Imperial Bank 1.280% 05/06/2003 25,000,000 25,000,035 Chase Manhattan Bank 1.300% 07/10/2003 30,000,000 30,000,000 Deutsche Bank AG Euro 1.350% 05/21/2003 25,000,000 25,000,137 Dresdner U.S. Finance Corporation 2.225% 07/02/2003 35,000,000 35,053,293 First Tennessee Bank 1.250% 07/22/2003 30,000,000 30,000,000 Landesbank Hessen-Thueringen 1.310% 07/15/2003 25,000,000 25,000,513 Toronto-Dominion Bank NY 1.250% 10/15/2003 30,000,000 30,000,000 Wilmington Trust Company 3.650% 10/17/2003 20,000,000 20,218,914 -------------- TOTAL CERTIFICATES OF DEPOSIT 240,272,892 -------------- COMMERCIAL PAPER -- 27.2% BANKING -- 9.2% Abbey National NA LLC 1.260% 05/23/2003 25,000,000 24,980,750 Bank of Ireland 1.250% 05/12/2003 25,000,000 24,990,452 HBOS Treasury Services 1.265% 06/02/2003 15,000,000 14,983,133 Societe Generale North America 1.260% 08/08/2003 23,500,000 23,418,573 Westdeutsche Landesbank 1.310% 06/13/2003 30,000,000 29,953,059 -------------- 118,325,967 -------------- </Table> 3 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- CASH RESERVES FUND (CONTINUED) SCHEDULE OF INVESTMENTS - APRIL 30, 2003 - -------------------------------------------------------------------------------- <Table> - ------------------------------------------------------------------------------------------- <Caption> SECURITY DESCRIPTION RATE MATURITY PRINCIPAL AMORTIZED COST COMMERCIAL PAPER (CONTINUED) BEVERAGES, FOOD & TOBACCO -- 1.1% Coca-Cola Enterprises 1.280% 06/04/2003 $ 14,850,000 $ 14,832,048 -------------- BROKERS -- 2.3% Goldman Sachs Group, Inc. 1.220% 05/23/2003 30,000,000 29,977,633 -------------- COMPUTERS & INFORMATION -- 1.2% IBM Corporation 1.700% 05/02/2003 15,000,000 14,999,291 -------------- ELECTRIC UTILITIES -- 2.2% FPL Group Capital, Inc. 1.300% 05/28/2003 27,970,000 27,942,729 -------------- FINANCIAL SERVICES -- 3.5% Household Finance Corporation 1.260% 07/18/2003 20,000,000 19,945,400 The CIT Group, Inc. 1.260% 05/15/2003 25,000,000 24,987,750 -------------- 44,933,150 -------------- INDUSTRIAL - DIVERSIFIED -- 3.1% General Electric Capital International Funding 1.300% 07/08/2003 40,000,000 39,901,777 -------------- MISCELLANEOUS -- 4.6% Canadian Wheat Board 1.260% 08/21/2003 25,000,000 24,902,000 Quebec Province 1.250% 10/10/2003 35,000,000 34,803,125 -------------- 59,705,125 -------------- TOTAL COMMERCIAL PAPER 350,617,720 -------------- CORPORATE DEBT -- 0.8% BANKING -- 0.8% Bank One Corporation 6.875% 06/15/2003 10,000,000 10,066,669 -------------- TOTAL CORPORATE DEBT 10,066,669 -------------- FIXED RATE U.S. GOVERNMENT AGENCY OBLIGATIONS -- 7.4% Federal Home Loan Bank 1.375% 05/12/2004 17,000,000 17,000,000 Federal Home Loan Bank 1.425% 03/08/2004 33,800,000 33,800,000 Federal Home Loan Bank 1.450% 05/14/2004 29,500,000 29,500,000 Federal National Mortgage Association 5.260% 10/02/2003 15,000,000 15,211,873 -------------- TOTAL FIXED RATE U.S. GOVERNMENT AGENCY OBLIGATIONS 95,511,873 -------------- MONEY MARKET FUNDS -- 9.1% Merrill Lynch Premier Institutional Fund 1.240% 58,597,787 58,597,787 Merrimac Cash Series, Premium Class 1.260% 58,840,980 58,840,980 -------------- TOTAL MONEY MARKET FUNDS 117,438,767 -------------- VARIABLE RATE NOTES -- 10.7% AUTOMOBILES -- 1.2% American Honda Finance Corporation(1) 1.299% 07/21/2003 15,000,000 14,999,289 -------------- </Table> 4 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- CASH RESERVES FUND (CONTINUED) SCHEDULE OF INVESTMENTS - APRIL 30, 2003 - -------------------------------------------------------------------------------- <Table> - ------------------------------------------------------------------------------------------- <Caption> SECURITY DESCRIPTION RATE MATURITY PRINCIPAL AMORTIZED COST VARIABLE RATE NOTES (CONTINUED) BANKING -- 2.9% Bayerische Landesbank Girozentrale NY(1) 1.303% 06/09/2003 $ 20,000,000 $ 20,004,491 Key Bank N.A.(1) 1.499% 07/29/2003 17,000,000 17,023,828 -------------- 37,028,319 -------------- BEVERAGES, FOOD & TOBACCO -- 0.8% Coca-Cola Enterprises(1) 1.570% 07/28/2003 10,000,000 10,025,023 -------------- BROKERS -- 1.5% Credit Suisse First Boston USA Inc.(1) 1.490% 05/27/2003 15,000,000 15,014,881 Merrill Lynch & Co(1) 1.358% 05/12/2003 5,000,000 5,000,000 -------------- 20,014,881 -------------- COMMERCIAL SERVICES -- 1.5% International Lease Finance Corporation(1) 1.533% 06/09/2003 20,000,000 20,000,000 -------------- FINANCIAL SERVICES -- 0.9% American Express Credit(1) 1.332% 05/06/2003 11,000,000 11,000,000 -------------- TRANSPORTATION -- 1.9% Paccar Financial Corporation(1) 1.360% 07/28/2003 25,000,000 25,020,695 -------------- TOTAL VARIABLE RATE NOTES 138,088,207 -------------- REPURCHASE AGREEMENT -- 8.5% UBS PaineWebber Warburg Repurchase Agreement, collateralized by Federal Farm Credit Banks, Federal Home Loan Banks, Freddie Mac Discount Notes and Federal Home Loan Mortgage Corporation issues, with interest rates ranging from 1.400% to 7.000%, maturity dates ranging from 1/08/04 to 1/15/26 and an aggregate market value of $111,007,956. 1.300% 05/01/2003 109,501,000 109,501,000 -------------- TOTAL INVESTMENTS -- 99.9% (COST $1,289,072,634) 1,289,072,634 NET OTHER ASSETS -- 0.1% 1,094,037 -------------- NET ASSETS -- 100.0% $1,290,166,671 ============== TOTAL COST FOR INCOME TAX PURPOSES $1,289,072,634 </Table> NOTES TO SCHEDULE OF INVESTMENTS: (1) The maturity date shown for security is next reset date. The accompanying notes are an integral part of the financial statements. 5 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- U.S. GOVERNMENT MONEY MARKET FUND SCHEDULE OF INVESTMENTS - APRIL 30, 2003 - -------------------------------------------------------------------------------- <Table> <Caption> SECURITY DESCRIPTION RATE MATURITY PRINCIPAL AMORTIZED COST - ------------------------------------------------------------------------------------------ FIXED RATE U.S. GOVERNMENT AGENCY OBLIGATIONS -- 67.7% Federal Farm Credit Bank 1.300% 08/04/2003 $ 5,000,000 $ 4,982,848 Federal Farm Credit Bank 1.340% 07/22/2003 5,000,000 4,984,739 Federal Farm Credit Bank 4.375% 05/01/2003 2,000,000 2,000,000 Federal Home Loan Bank 1.180% 05/07/2003 10,000,000 9,998,033 Federal Home Loan Bank 1.185% 05/02/2003 9,085,000 9,084,701 Federal Home Loan Bank 1.375% 05/12/2004 3,000,000 3,000,000 Federal Home Loan Bank 1.425% 03/08/2004 5,600,000 5,600,000 Federal Home Loan Bank 1.450% 05/14/2004 3,700,000 3,700,000 Federal Home Loan Bank 3.160% 10/29/2003 5,000,000 5,046,965 Federal Home Loan Mortgage Corporation 1.200% 05/20/2003 4,000,000 3,997,467 Federal Home Loan Mortgage Corporation 1.730% 10/09/2003 5,000,000 4,961,316 Federal Home Loan Mortgage Corporation 2.920% 11/14/2003 5,000,000 5,044,373 Federal Home Loan Mortgage Corporation 3.050% 11/28/2003 3,000,000 3,024,961 Federal Home Loan Mortgage Corporation 5.750% 07/15/2003 1,860,000 1,876,522 Federal Home Loan Mortgage Corporation 6.375% 11/15/2003 4,209,000 4,318,276 Federal National Mortgage Association 1.160% 06/09/2003 6,450,000 6,441,894 Federal National Mortgage Association 1.190% 06/11/2003 10,000,000 9,986,447 Federal National Mortgage Association 1.200% 05/09/2003 6,300,000 6,298,320 Federal National Mortgage Association 1.200% 05/21/2003 3,190,000 3,187,873 Federal National Mortgage Association 1.200% 06/10/2003 9,324,000 9,311,568 Federal National Mortgage Association 1.230% 05/15/2003 5,000,000 4,997,608 Federal National Mortgage Association 1.230% 05/21/2003 4,000,000 3,997,267 Federal National Mortgage Association 1.255% 07/02/2003 10,000,000 9,978,386 Federal National Mortgage Association 1.270% 05/07/2003 3,000,000 2,999,365 ------------ TOTAL FIXED RATE U.S. GOVERNMENT AGENCY OBLIGATIONS 128,818,929 ------------ VARIABLE RATE U.S. GOVERNMENT AGENCY OBLIGATIONS -- 14.9% Federal Home Loan Bank 1.089% 06/17/2003 5,000,000 4,999,195 Federal Home Loan Bank 1.093% 12/12/2003 15,000,000 14,991,689 Federal Home Loan Bank 1.240% 09/19/2003 8,360,000 8,358,659 ------------ TOTAL VARIABLE RATE U.S. GOVERNMENT AGENCY OBLIGATIONS 28,349,543 ------------ MONEY MARKET FUND -- 4.0% Merrill Lynch Government Fund 1.160% 7,611,195 7,611,195 ------------ </Table> 6 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- U.S. GOVERNMENT MONEY MARKET FUND (CONTINUED) SCHEDULE OF INVESTMENTS - APRIL 30, 2003 - -------------------------------------------------------------------------------- <Table> - ------------------------------------------------------------------------------------------ <Caption> SECURITY DESCRIPTION RATE MATURITY PRINCIPAL AMORTIZED COST REPURCHASE AGREEMENT -- 13.3% UBS Painewebber Warburg Repurchase Agreement, collateralized by Federal Home Loan Banks with interest rates ranging from 3.850% to 5.350%, maturity dates ranging from 6/17/05 to 11/20/12 and an aggregate market value of $25,824,477. 1.300% 05/01/2003 $25,314,000 $ 25,314,000 ------------ TOTAL INVESTMENTS -- 99.9% (COST $190,093,667) 190,093,667 NET OTHER ASSETS -- 0.1% 158,627 ------------ NET ASSETS -- 100.0% $190,252,294 ============ TOTAL COST FOR INCOME TAX PURPOSES $190,093,667 </Table> The accompanying notes are an integral part of the financial statements. 7 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- TAX FREE MONEY MARKET FUND SCHEDULE OF INVESTMENTS - APRIL 30, 2003 - -------------------------------------------------------------------------------- <Table> <Caption> SECURITY DESCRIPTION RATE MATURITY PRINCIPAL AMORTIZED COST - ----------------------------------------------------------------------------------------- PREREFUNDED MUNICIPAL OBLIGATIONS -- 5.7% Dade County School Board 5.750% 08/01/2003 $1,000,000 $ 1,010,923 Florida State Board of Education Cap Outlay 5.750% 01/01/2004 1,000,000 1,041,175 Metropolitan Pier & Exposition Authority Illinois 6.500% 06/15/2003 1,000,000 1,026,120 St. Louis Regional Convention & Sports Complex Authority 7.900% 08/15/2003 1,000,000 1,018,151 Wisconsin State 5.100% 05/01/2003 500,000 500,000 ----------- TOTAL PREREFUNDED MUNICIPAL OBLIGATIONS 4,596,369 ----------- MUNICIPAL INTEREST BEARING COMMERCIAL PAPER -- 5.6% Clark County Nevada 1.050% 05/02/2003 1,000,000 1,000,000 Indiana Development Finance Authority 1.100% 07/11/2003 1,000,000 1,000,000 Municipal Electric Authority of Georgia 1.050% 05/14/2003 1,500,000 1,500,000 San Antonio, Texas Sales Tax 1.070% 07/01/2003 1,000,000 1,000,000 ----------- TOTAL MUNICIPAL INTEREST BEARING COMMERCIAL PAPER 4,500,000 ----------- FIXED RATE MUNICIPAL OBLIGATIONS -- 17.4% Arlington, Texas 2.500% 08/15/2003 1,165,000 1,168,345 Dallas Texas City Managers Office 4.750% 02/15/2004 500,000 514,483 Grand Strand Water & Sewer Authority 5.000% 06/01/2003 1,040,000 1,043,068 Harris County Flood Control District 3.000% 10/01/2003 1,000,000 1,008,162 Highland Park TX Independent School District 5.500% 02/15/2004 500,000 517,060 Madison Area Technical College 3.000% 08/01/2003 1,000,000 1,003,934 Memphis, Tennessee 3.000% 08/01/2003 1,050,000 1,055,198 Metropolitan Government Nashville & Davidson County Health & Educational Facilities 5.000% 10/15/2003 1,420,000 1,445,383 Pima County Arizona Community College 5.000% 07/01/2003 1,000,000 1,005,814 Scottsdale, Arizona 7.000% 07/01/2003 650,000 656,005 St. Paul, Minnesota 2.000% 03/01/2004 785,000 791,286 Sudbury, Massachusetts 2.000% 04/01/2004 750,000 755,797 Tulsa County OK Independent School District 4.000% 05/01/2003 1,000,000 1,000,000 Tulsa County OK Independent School District 4.500% 03/01/2004 1,000,000 1,027,963 Washington Suburban Sanitation District 4.375% 06/01/2003 1,000,000 1,002,635 ----------- TOTAL FIXED RATE MUNICIPAL OBLIGATIONS 13,995,133 ----------- DAILY VARIABLE RATE MUNICIPAL OBLIGATIONS -- 12.3% Beltrami County MN Environmental Control(1) 1.450% 05/01/2003 2,000,000 2,000,000 California State(1) 1.400% 05/01/2003 900,000 900,000 Clarksville Public Building Authority(1) 1.400% 05/01/2003 800,000 800,000 Maryland State Energy Solid Waste Disposal(1) 1.400% 05/01/2003 1,200,000 1,200,000 </Table> 8 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- TAX FREE MONEY MARKET FUND (CONTINUED) SCHEDULE OF INVESTMENTS - APRIL 30, 2003 - -------------------------------------------------------------------------------- <Table> - ----------------------------------------------------------------------------------------- <Caption> SECURITY DESCRIPTION RATE MATURITY PRINCIPAL AMORTIZED COST DAILY VARIABLE RATE MUNICIPAL OBLIGATIONS (CONTINUED) Massachusetts Health & Educational Facilities Authority(1) 1.350% 05/01/2003 $1,500,000 $ 1,500,000 Missouri State Health & Educational Facilities Authority(1) 1.350% 05/01/2003 1,450,000 1,450,000 Montgomery County Public Building Authority Pooled Financing(1) 1.400% 05/01/2003 1,000,000 1,000,000 Phoenix Arizona Industrial Development Authority(1) 1.400% 05/01/2003 1,000,000 1,000,000 ----------- TOTAL DAILY VARIABLE RATE MUNICIPAL OBLIGATIONS 9,850,000 ----------- WEEKLY VARIABLE RATE MUNICIPAL OBLIGATIONS -- 57.2% Baltimore MD Industrial Development Authority(1) 1.350% 05/01/2003 1,500,000 1,500,000 California Economic Development Financing Authority(1) 1.300% 05/07/2003 900,000 900,000 Capital Health Facilities Development Corporation(1) 1.400% 05/07/2003 1,000,000 1,000,000 Cuyahoga County Ohio Hospital(1) 1.100% 05/07/2003 2,000,000 2,000,000 Delaware Valley PA Regional Financial Authority(1) 1.350% 05/07/2003 1,000,000 1,000,000 Durham, North Carolina(1) 1.400% 05/01/2003 1,000,000 1,000,000 Elmhurst, Illinois Joint Commission on Accredation of Healthcare Organizations(1) 1.350% 05/01/2003 1,165,000 1,165,000 Emporia Industrial Development Authority(1) 1.450% 05/01/2003 950,000 950,000 Florida Gulf Coast University(1) 1.500% 05/01/2003 1,000,000 1,000,000 Florida Housing Finance Agency(1) 1.250% 05/07/2003 1,000,000 1,000,000 Hampton Redevelopment & Housing Authority Multifamily(1) 1.350% 05/07/2003 1,335,000 1,335,000 Honolulu, Hawaii City & County(1) 1.300% 05/07/2003 2,000,000 2,000,000 Illinois Development Finance Authority Pollution Control(1) 1.350% 05/07/2003 1,500,000 1,500,000 Illinois Educational Facilities Authority(1) 1.350% 05/07/2003 1,500,000 1,500,000 Illinois State Toll Highway Authority(1) 1.400% 05/01/2003 1,500,000 1,500,000 Kansas City Industrial Development Authority(1) 1.300% 05/01/2003 1,500,000 1,500,000 King County WA Sewer(1) 1.350% 05/07/2003 1,500,000 1,500,000 Lehigh County Industrial Development Authority(1) 1.300% 05/07/2003 110,000 110,000 Lincoln Parish, Louisiana Exempt Facility(1) 1.380% 05/07/2003 2,000,000 2,000,000 Louisiana Public Facilities Authority(1) 1.350% 05/07/2003 985,000 985,000 Metropolitan Atlanta Rapid Transportation Authority(1) 1.250% 05/07/2003 1,000,000 1,000,000 Michigan State Strategic Fund Solidwaste Disposal(1) 1.380% 05/07/2003 1,060,000 1,060,000 Oklahoma City Industrial & Cultural Facilities Trust(1) 1.250% 05/01/2003 1,500,000 1,500,000 Philadelphia Hospitals & Higher Education Facilities Authority(1) 1.350% 05/01/2003 1,000,000 1,000,000 Pima County Industrial Development Authority(1) 1.350% 05/07/2003 1,500,000 1,500,000 Pinal County Industrial Development Authority(1) 1.350% 05/07/2003 1,800,000 1,800,000 </Table> 9 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- TAX FREE MONEY MARKET FUND (CONTINUED) SCHEDULE OF INVESTMENTS - APRIL 30, 2003 - -------------------------------------------------------------------------------- <Table> - ----------------------------------------------------------------------------------------- <Caption> SECURITY DESCRIPTION RATE MATURITY PRINCIPAL AMORTIZED COST WEEKLY VARIABLE RATE MUNICIPAL OBLIGATIONS (CONTINUED) Seattle Washington Municipal Light & Power(1) 1.300% 05/07/2003 $1,500,000 $ 1,500,000 Seattle Washington Water System(1) 1.150% 05/07/2003 900,000 900,000 South Carolina-Jobs- Economic Development Authority(1) 1.450% 05/01/2003 1,000,000 1,000,000 South Louisiana Port Commission Marine Terminals Facility(1) 1.400% 05/07/2003 1,325,000 1,325,000 St. Paul Minnesota Housing & Redevelopment Authority District Energy(1) 1.350% 05/07/2003 1,650,000 1,650,000 University Pittsburgh of the Commonwealth System of Higher Education Pennsylvania(1) 1.350% 05/07/2003 1,000,000 1,000,000 Vancouver Housing Authority(1) 1.500% 05/01/2003 1,000,000 1,000,000 Washington Higher Education Facilities Authority(1) 1.350% 05/01/2003 1,000,000 1,000,000 Washington Public Power Supply System(1) 1.300% 05/07/2003 2,000,000 2,000,000 West Des Moines, Iowa Commercial Development(1) 1.350% 05/07/2003 1,200,000 1,200,000 ----------- TOTAL WEEKLY VARIABLE RATE MUNICIPAL OBLIGATIONS 45,880,000 ----------- MONEY MARKET FUNDS -- 4.0% Alliance Institutional Tax Free Portfolio(1) 1.190% 1,245,138 1,245,139 Merrill Lynch Institutional Tax Exempt Money Market(1) 1.160% 1,967,654 1,967,654 ----------- TOTAL MONEY MARKET FUNDS 3,212,793 ----------- TOTAL INVESTMENTS -- 102.2% (COST $82,034,295) 82,034,295 NET OTHER ASSETS -- (2.2%) (1,774,682) ----------- NET ASSETS -- 100.0% $80,259,613 =========== TOTAL COST FOR INCOME TAX PURPOSES $82,034,295 </Table> NOTES TO SCHEDULE OF INVESTMENTS: (1) The maturity date shown for security is next reset date. The accompanying notes are an integral part of the financial statements. 10 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- TAX FREE MONEY MARKET FUND (CONTINUED) SCHEDULE OF INVESTMENTS STATE TABLE - APRIL 30, 2003 - -------------------------------------------------------------------------------- <Table> <Caption> STATE (AS A % OF MARKET VALUE OF INVESTMENTS) PERCENTAGE - --------------------------------------------------------- Washington 9.6% Illinois 8.2% Arizona 7.3% Texas 6.4% Minnesota 5.4% Louisiana 5.3% Tennessee 5.2% Florida 4.9% Missouri 4.8% Maryland 4.5% Oklahoma 4.3% National Tax Exempt Mutual Fund 3.9% Pennsylvania 3.8% Georgia 3.1% Virginia 2.8% Massachusetts 2.8% South Carolina 2.5% Ohio 2.4% Hawaii 2.4% California 2.2% Wisconsin 1.8% Iowa 1.5% Michigan 1.3% Indiana 1.2% Nevada 1.2% North Carolina 1.2% </Table> 11 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- NEW YORK MUNICIPAL MONEY MARKET FUND SCHEDULE OF INVESTMENTS - APRIL 30, 2003 - -------------------------------------------------------------------------------- <Table> <Caption> SECURITY DESCRIPTION RATE MATURITY PRINCIPAL AMORTIZED COST - ----------------------------------------------------------------------------------------- MUNICIPAL INTEREST BEARING COMMERCIAL PAPER -- 17.6% Metropolitan Transportation Authority New York 1.050% 06/12/2003 $4,000,000 $ 4,000,000 Metropolitan Transportation Authority New York 1.050% 07/07/2003 6,000,000 6,000,000 New York City Muni Water 1.050% 07/17/2003 1,600,000 1,600,000 New York City Muni Water 1.100% 07/17/2003 1,000,000 1,000,000 New York State 1.050% 07/18/2003 5,000,000 5,000,000 New York State Dormitory Authority 1.050% 05/21/2003 2,000,000 2,000,000 New York State Thruway Authority 1.050% 10/14/2003 3,500,000 3,500,000 ------------ TOTAL MUNICIPAL INTEREST BEARING COMMERCIAL PAPER 23,100,000 ------------ FIXED RATE MUNICIPAL OBLIGATIONS -- 7.1% Bath Central School District 3.125% 06/15/2003 425,000 425,894 Erie County New York 2.500% 09/17/2003 1,000,000 1,004,017 Half Hollow Hills Central School 2.250% 06/26/2003 2,000,000 2,002,671 Lindenhurst Union Free School District 2.250% 06/26/2003 2,000,000 2,002,884 New York State Dormitory Authority 6.000% 08/01/2003 1,875,000 1,896,793 Patchogue-Medford Union Free School District 2.250% 06/26/2003 2,000,000 2,002,884 ------------ TOTAL FIXED RATE MUNICIPAL OBLIGATIONS 9,335,143 ------------ DAILY VARIABLE RATE MUNICIPAL OBLIGATIONS -- 7.0% Jay Street Development Corporation(1) 1.260% 05/01/2003 1,700,000 1,700,000 New York NY City Transitional Finance Authority(1) 1.400% 05/01/2003 900,000 900,000 New York NY City Transitional Finance Authority(1) 1.400% 05/01/2003 2,600,000 2,600,000 New York, NY(1) 1.300% 05/01/2003 3,900,000 3,900,000 ------------ TOTAL DAILY VARIABLE RATE MUNICIPAL OBLIGATIONS 9,100,000 ------------ WEEKLY VARIABLE RATE MUNICIPAL OBLIGATIONS -- 67.9% Babylon NY(1) 1.250% 05/07/2003 1,600,000 1,600,000 Long Island Power Authority(1) 1.350% 05/07/2003 4,000,000 4,000,000 Long Island Power Authority(1) 1.350% 05/07/2003 1,000,000 1,000,000 Nassau County, New York Interim Finance Authority(1) 1.300% 05/07/2003 2,500,000 2,500,000 Nassau County, New York Interim Finance Authority(1) 1.300% 05/07/2003 2,000,000 2,000,000 New York City Trust for Cultural Resources(1) 1.250% 05/07/2003 1,790,000 1,790,000 New York NY City Housing Development Corp.(1) 1.250% 05/01/2003 1,800,000 1,800,000 New York NY City Housing Development Corp. Multifamily Housing(1) 1.400% 05/07/2003 1,000,000 1,000,000 New York NY City Housing-400 West 59th Street Partners(1) 1.380% 05/07/2003 4,100,000 4,100,000 New York NY City Housing-Queenswood Apartments(1) 1.320% 05/07/2003 6,600,000 6,600,000 </Table> 12 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- NEW YORK MUNICIPAL MONEY MARKET FUND (CONTINUED) SCHEDULE OF INVESTMENTS - APRIL 30, 2003 - -------------------------------------------------------------------------------- <Table> - ----------------------------------------------------------------------------------------- <Caption> SECURITY DESCRIPTION RATE MATURITY PRINCIPAL AMORTIZED COST WEEKLY VARIABLE RATE MUNICIPAL OBLIGATIONS (CONTINUED) New York NY City Industrial Development Agency Civic Facility - Planned Parenthood Federation of America, Inc.(1) 1.300% 05/01/2003 $5,000,000 $ 5,000,000 New York NY City Transitional Finance Authority(1) 1.270% 05/07/2003 2,500,000 2,500,000 New York State Energy Research & Development Authority Electric Facilities(1) 1.400% 05/07/2003 5,000,000 5,000,000 New York State Energy Research & Development Authority Pollution Control(1) 1.250% 05/07/2003 1,500,000 1,500,000 New York State Housing Finance Agency(1) 1.320% 05/07/2003 3,500,000 3,500,000 New York State Housing Finance Agency(1) 1.400% 05/07/2003 3,000,000 3,000,000 New York State Housing Finance Agency(1) 1.400% 05/07/2003 2,000,000 2,000,000 New York State Local Government Assistance Corp.(1) 1.350% 05/07/2003 4,900,000 4,900,000 New York, NY(1) 1.320% 05/07/2003 2,000,000 2,000,000 Niagara Falls NY Bridge Toll(1) 1.250% 05/07/2003 5,900,000 5,900,000 Oneida County NY Industrial Development Agency(1) 1.300% 05/07/2003 4,835,000 4,835,000 Oneida Indian Nation(1) 1.300% 05/07/2003 5,500,000 5,500,000 Onondaga County Industrial Development Agency(1) 1.500% 05/01/2003 5,000,000 5,000,000 Suffolk County NY Water Authority(1) 1.300% 05/07/2003 5,000,000 5,000,000 Triborough Bridge & Tunnel Authority NY(1) 1.300% 05/07/2003 3,500,000 3,500,000 Triborough Bridge & Tunnel Authority NY(1) 1.320% 05/01/2003 2,500,000 2,500,000 Triborough Bridge & Tunnel Authority NY(1) 1.350% 05/07/2003 930,000 930,000 ------------ TOTAL WEEKLY VARIABLE RATE MUNICIPAL OBLIGATIONS 88,955,000 ------------ MONEY MARKET FUNDS -- 0.3% Dreyfus New York Municipal Cash Management Fund 1.100% 367,953 367,953 ------------ TOTAL INVESTMENTS -- 99.9% (COST $130,858,096) 130,858,096 NET OTHER ASSETS -- 0.1% 166,354 ------------ NET ASSETS -- 100.0% $131,024,450 ============ TOTAL COST FOR INCOME TAX PURPOSES $130,858,096 </Table> NOTES TO SCHEDULE OF INVESTMENTS: (1) The maturity date shown for security is next reset date. The accompanying notes are an integral part of the financial statements. 13 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- STATEMENTS OF ASSETS AND LIABILITIES AS OF APRIL 30, 2003 - -------------------------------------------------------------------------------- <Table> <Caption> BOSTON ADVISORS BOSTON ADVISORS BOSTON ADVISORS BOSTON ADVISORS CASH U.S. GOVERNMENT TAX FREE NEW YORK MUNICIPAL RESERVES FUND MONEY MARKET FUND MONEY MARKET FUND MONEY MARKET FUND --------------- ----------------- ----------------- ------------------ ASSETS Investments in securities, at value (Cost $1,179,571,634, $164,779,667, $82,034,295 and $130,858,096, respectively) $1,179,571,634 $164,779,667 $82,034,295 $130,858,096 Repurchase agreements, at value (Cost $109,501,000, $25,314,000, $0 and $0, respectively) 109,501,000 25,314,000 -- -- -------------- ------------ ----------- ------------ TOTAL INVESTMENTS 1,289,072,634 190,093,667 82,034,295 130,858,096 -------------- ------------ ----------- ------------ Cash 9,825 359 -- -- Interest receivable 2,240,159 374,744 343,965 308,676 Prepaid expenses 44,178 14,880 14,674 5,517 -------------- ------------ ----------- ------------ TOTAL ASSETS 1,291,366,796 190,483,650 82,392,934 131,172,289 -------------- ------------ ----------- ------------ LIABILITIES Payable for investments purchased -- -- 2,024,316 -- Dividends payable 261,244 36,045 12,755 33,512 Payable to the Investment Advisor 398,359 85,491 29,208 26,398 Payable to affiliate for Trustees' fees 132 132 132 65 Payable to Distributor 263,743 40,304 16,714 28,544 Payable to Transfer Agent 125,103 15,799 2,981 13,967 Accrued expense and other payables 151,544 53,585 47,215 45,353 -------------- ------------ ----------- ------------ TOTAL LIABILITIES 1,200,125 231,356 2,133,321 147,839 -------------- ------------ ----------- ------------ NET ASSETS $1,290,166,671 $190,252,294 $80,259,613 $131,024,450 ============== ============ =========== ============ NET ASSETS CONSIST OF: Paid-in capital 1,290,166,671 190,232,031 80,259,613 131,024,450 Accumulated net investment income 314 20,263 -- -- Accumulated net realized loss on investment transactions (314) -- -- -- -------------- ------------ ----------- ------------ TOTAL NET ASSETS $1,290,166,671 $190,252,294 $80,259,613 $131,024,450 ============== ============ =========== ============ NET ASSETS Class 1 1,263,136,265 190,252,294 80,259,613 131,024,450 Class 2 27,030,406 -- -- -- -------------- ------------ ----------- ------------ TOTAL 1,290,166,671 190,252,294 80,259,613 131,024,450 SHARES OUTSTANDING Class 1 1,263,136,265 190,252,294 80,259,613 131,024,450 Class 2 27,030,406 -- -- -- -------------- ------------ ----------- ------------ TOTAL 1,290,166,671 190,252,294 80,259,613 131,024,450 NET ASSET VALUE, OFFERING PRICE AND REDEMPTION PRICE PER SHARE Class 1 $1.00 $1.00 $1.00 $1.00 Class 2 1.00 -- -- -- </Table> See Notes to Financial Statements 14 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- STATEMENTS OF OPERATIONS YEAR ENDED APRIL 30, 2003 - -------------------------------------------------------------------------------- <Table> <Caption> BOSTON ADVISORS BOSTON ADVISORS BOSTON ADVISORS BOSTON ADVISORS CASH U.S. GOVERNMENT TAX FREE NEW YORK MUNICIPAL RESERVES FUND MONEY MARKET FUND MONEY MARKET FUND MONEY MARKET FUND(1) --------------- ----------------- ----------------- ------------------------ INVESTMENT INCOME Interest $21,948,997 $3,272,577 $1,249,112 $1,499,575 EXPENSES Investment advisor fee 7,246,446 1,113,077 503,390 660,378 Distribution and service fees Class 1 3,236,908 505,944 228,814 300,172 Legal fees 4,809 4,809 4,809 38,188 Printing 148,734 21,989 10,593 27,100 Audit fees 21,221 21,681 21,681 23,130 Administration, custodian and fund accounting expense 469,645 77,685 38,372 97,059 Transfer agency expense 1,592,289 199,636 36,801 120,649 Registration expense 98,190 36,763 30,308 16,848 Insurance expense 243,249 2,602 17,297 28,425 Trustees fees and expense 8,006 8,006 8,006 7,940 Miscellaneous 989 989 989 872 ----------- ---------- ---------- ---------- Total expenses 13,070,486 1,993,181 901,060 1,320,761 Reduction of expenses (1,871,470) (171,782) (77,331) (540,314) ----------- ---------- ---------- ---------- Net expenses 11,199,016 1,821,399 823,729 780,447 ----------- ---------- ---------- ---------- Net investment income 10,749,981 1,451,178 425,383 719,128 ----------- ---------- ---------- ---------- NET INCREASE IN NET ASSETS FROM OPERATIONS $10,749,981 $1,451,178 $ 425,383 $ 719,128 =========== ========== ========== ========== </Table> (1) Fund commenced operations on June 11, 2002. See Notes to Financial Statements 15 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- STATEMENTS OF CHANGES IN NET ASSETS - -------------------------------------------------------------------------------- <Table> <Caption> BOSTON ADVISORS BOSTON ADVISORS CASH U.S. GOVERNMENT RESERVES FUND MONEY MARKET FUND -------------------------------- ------------------------------ YEAR ENDED YEAR ENDED YEAR ENDED YEAR ENDED APRIL 30, 2003 APRIL 30, 2002 APRIL 30, 2003 APRIL 30, 2002 --------------- --------------- -------------- -------------- INCREASE (DECREASE) IN NET ASSETS FROM OPERATIONS Net investment income $ 10,749,981 $ 27,258,358 $ 1,451,178 $ 3,685,378 --------------- --------------- ------------- ------------- Net increase in net assets resulting from operations 10,749,981 27,258,358 1,451,178 3,685,378 --------------- --------------- ------------- ------------- DISTRIBUTIONS TO SHAREHOLDERS From net investment income Class 1 (10,525,024) (26,757,977) (1,451,178) (3,685,378) Class 2 (224,957) (500,381) -- -- --------------- --------------- ------------- ------------- TOTAL DISTRIBUTIONS TO SHAREHOLDERS (10,749,981) (27,258,358) (1,451,178) (3,685,378) --------------- --------------- ------------- ------------- TRANSACTIONS IN SHARES OF BENEFICIAL INTEREST (EACH AT $1.00 PER SHARE) Proceeds from sale of shares Class 1 4,284,616,395 3,901,149,149 639,218,663 587,705,828 Class 2 43,456,266 34,339,004 -- -- Net Asset Value of shares issued to shareholders in payment of distributions declared Class 1 10,665,082 27,430,087 1,497,543 3,697,942 Class 2 226,282 533,889 -- -- Cost of shares redeemed Class 1 (4,378,404,786) (3,728,652,888) (645,276,954) (508,963,919) Class 2 (36,550,260) (33,977,992) -- -- --------------- --------------- ------------- ------------- NET INCREASE (DECREASE) IN NET ASSETS FROM FUND SHARE TRANSACTIONS (75,991,021) 200,821,249 (4,560,748) 82,439,851 --------------- --------------- ------------- ------------- NET INCREASE (DECREASE) IN NET ASSETS (75,991,021) 200,821,249 (4,560,748) 82,439,851 NET ASSETS At beginning of year 1,366,157,692 1,165,336,443 194,813,042 112,373,191 --------------- --------------- ------------- ------------- At end of year $ 1,290,166,671 $ 1,366,157,692 $ 190,252,294 $ 194,813,042 =============== =============== ============= ============= Accumulated undistributed net investment income included in net assets $ 314 $ 314 $ 20,263 $ -- =============== =============== ============= ============= </Table> See Notes to Financial Statements 16 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- STATEMENTS OF CHANGES IN NET ASSETS (CONTINUED) - -------------------------------------------------------------------------------- <Table> <Caption> BOSTON ADVISORS BOSTON ADVISORS TAX FREE NEW YORK MUNICIPAL MONEY MARKET FUND MONEY MARKET FUND ------------------------------ ------------------ FOR THE YEAR ENDED YEAR ENDED PERIOD ENDED APRIL 30, 2003 APRIL 30, 2002 APRIL 30, 2003(1) -------------- -------------- ------------------ INCREASE (DECREASE) IN NET ASSETS FROM OPERATIONS Net investment income $ 425,383 $ 1,036,014 $ 719,128 ------------- ------------- ------------- Net increase in net assets resulting from operations 425,383 1,036,014 719,128 ------------- ------------- ------------- DISTRIBUTIONS TO SHAREHOLDERS From net investment income Class 1 (425,383) (1,036,014) (719,128) ------------- ------------- ------------- TOTAL DISTRIBUTIONS TO SHAREHOLDERS (425,383) (1,036,014) (719,128) ------------- ------------- ------------- TRANSACTIONS IN SHARES OF BENEFICIAL INTEREST (EACH AT $1.00 PER SHARE) Proceeds from sale of shares Class 1 262,943,995 264,375,796 603,293,770 Net Asset Value of shares issued to shareholders in payment of distributions declared Class 1 431,793 1,068,011 665,414 Cost of shares redeemed Class 1 (268,254,514) (253,830,256) (472,934,734) ------------- ------------- ------------- NET INCREASE (DECREASE) IN NET ASSETS FROM FUND SHARE TRANSACTIONS (4,878,726) 11,613,551 131,024,450 ------------- ------------- ------------- NET INCREASE (DECREASE) IN NET ASSETS (4,878,726) 11,613,551 131,024,450 NET ASSETS At beginning of year 85,138,339 73,524,788 -- ------------- ------------- ------------- At end of year $ 80,259,613 $ 85,138,339 $ 131,024,450 ============= ============= ============= Accumulated undistributed net investment income included in net assets $ -- $ -- $ -- ============= ============= ============= </Table> (1) Fund commenced operations on June 11, 2002. See Notes to Financial Statements 17 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- FINANCIAL HIGHLIGHTS - CLASS 1 - -------------------------------------------------------------------------------- <Table> <Caption> BOSTON ADVISORS CASH RESERVES FUND --------------------------------------------------------- FOR THE FOR THE FOR THE YEAR ENDED YEAR ENDED PERIOD ENDED APRIL 30, 2003 APRIL 30, 2002 APRIL 30, 2001(1) -------------- -------------- --------------------- NET ASSET VALUE, BEGINNING OF YEAR $ 1.000 $ 1.000 $ 1.000 ---------- ------------ ---------------- INCREASE IN NET ASSETS FROM OPERATIONS Net investment income 0.008 0.022 0.050 ---------- ------------ ---------------- Net increase from investment operations 0.008 0.022 0.050 ---------- ------------ ---------------- DISTRIBUTIONS TO SHAREHOLDERS FROM: Net investment income (0.008) (0.022) (0.050) ---------- ------------ ---------------- Total distributions (0.008) (0.022) (0.050) ---------- ------------ ---------------- NET ASSET VALUE, END OF YEAR $ 1.000 $ 1.000 $ 1.000 ========== ============ ================ TOTAL RETURN 0.81% 2.25% 5.07%(2) RATIOS/SUPPLEMENTAL DATA: Net assets, end of year (000's) $1,263,136 $ 1,346,260 $ 1,146,333 Ratio of net operating expenses to average net assets 0.85% 0.90% 0.90%(3) Ratio of net investment income to average net assets 0.81% 2.17% 5.42%(3) Ratio of expenses to average net assets prior to waived fees and reimbursed expenses 0.99% 0.99% 1.03%(3) Ratio of net investment income to average net assets prior to waived fees and reimbursed expenses 0.67% 2.08% 5.29%(3) </Table> (1) For the period from commencement of offering of Class 1 shares, June 5, 2000 to April 30, 2001. (2) Not Annualized. (3) Annualized. See Notes to Financial Statements 18 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- FINANCIAL HIGHLIGHTS - CLASS 2 - -------------------------------------------------------------------------------- <Table> <Caption> BOSTON ADVISORS CASH RESERVES FUND --------------------------------------------------------- FOR THE FOR THE FOR THE YEAR ENDED YEAR ENDED PERIOD ENDED APRIL 30, 2003 APRIL 30, 2002 APRIL 30, 2001(1) -------------- -------------- --------------------- NET ASSET VALUE, BEGINNING OF YEAR $ 1.000 $ 1.000 $ 1.000 ------- ------- ------- INCREASE IN NET ASSETS FROM OPERATIONS Net investment income 0.010 0.025 0.020 ------- ------- ------- Net increase from investment operations 0.010 0.025 0.020 ------- ------- ------- DISTRIBUTIONS TO SHAREHOLDERS FROM: Net investment income (0.010) (0.025) (0.020) ------- ------- ------- Total distributions (0.010) (0.025) (0.020) ------- ------- ------- NET ASSET VALUE, END OF YEAR $ 1.00 $ 1.00 $ 1.00 ======= ======= ======= TOTAL RETURN 1.02% 2.50% 2.01%(2) RATIOS/SUPPLEMENTAL DATA: Net assets, end of year (000's) $27,030 $19,898 $19,003 Ratio of net operating expenses to average net assets 0.65% 0.65% 0.66%(3) Ratio of net investment income to average net assets 0.99% 2.44% 5.22%(3) Ratio of expenses to average net assets prior to waived fees and reimbursed expenses 0.75% 0.74% 0.83%(3) Ratio of net investment income to average net assets prior to waived fees and reimbursed expenses 0.89% 2.35% 5.05%(3) </Table> (1) For the period from commencement of offering of Class 2 shares, December 13, 2000 to April 30, 2001. (2) Not Annualized. (3) Annualized. See Notes to Financial Statements 19 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- FINANCIAL HIGHLIGHTS - CLASS 1 - -------------------------------------------------------------------------------- <Table> <Caption> BOSTON ADVISORS U.S. GOVERNMENT MONEY MARKET FUND --------------------------------------------------------- FOR THE FOR THE FOR THE YEAR ENDED YEAR ENDED PERIOD ENDED APRIL 30, 2003 APRIL 30, 2002 APRIL 30, 2001(1) -------------- -------------- --------------------- NET ASSET VALUE, BEGINNING OF YEAR $ 1.000 $ 1.000 $ 1.000 -------- ----------- --------------- INCREASE IN NET ASSETS FROM OPERATIONS Net investment income 0.007 0.022 0.049 -------- ----------- --------------- Net increase from investment operations 0.007 0.022 0.049 -------- ----------- --------------- DISTRIBUTIONS TO SHAREHOLDERS FROM: Net investment income (0.007) (0.022) (0.049) -------- ----------- --------------- Total distributions (0.007) (0.022) (0.049) -------- ----------- --------------- NET ASSET VALUE, END OF YEAR $ 1.000 $ 1.000 $ 1.000 ======== =========== =============== TOTAL RETURN 0.71% 2.20% 4.98%(2) RATIOS/SUPPLEMENTAL DATA: Net assets, end of year (000's) $190,252 $ 194,813 $ 112,373 Ratio of net operating expenses to average net assets 0.90% 0.90% 0.90%(3) Ratio of net investment income to average net assets 0.72% 2.10% 5.34%(3) Ratio of expenses to average net assets prior to waived fees and reimbursed expenses 0.98% 1.01% 1.07%(3) Ratio of net investment income to average net assets prior to waived fees and reimbursed expenses 0.64% 1.99% 5.17%(3) </Table> (1) For the period from commencement of offering of Class 1 shares, June 5, 2000 to April 30, 2001. (2) Not Annualized. (3) Annualized. See Notes to Financial Statements 20 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- FINANCIAL HIGHLIGHTS - CLASS 1 - -------------------------------------------------------------------------------- <Table> <Caption> BOSTON ADVISORS TAX FREE MONEY MARKET FUND --------------------------------------------------------- FOR THE FOR THE FOR THE YEAR ENDED YEAR ENDED PERIOD ENDED APRIL 30, 2003 APRIL 30, 2002 APRIL 30, 2001(1) -------------- -------------- --------------------- NET ASSET VALUE, BEGINNING OF YEAR $ 1.000 $ 1.000 $ 1.000 ------- ----------- -------------- INCREASE IN NET ASSETS FROM OPERATIONS Net investment income 0.005 0.013 0.027 ------- ----------- -------------- Net increase from investment operations 0.005 0.013 0.027 ------- ----------- -------------- DISTRIBUTIONS TO SHAREHOLDERS FROM: Net investment income (0.005) (0.013) (0.027) ------- ----------- -------------- Total distributions (0.005) (0.013) (0.027) ------- ----------- -------------- NET ASSET VALUE, END OF YEAR $ 1.000 $ 1.000 $ 1.000 ======= =========== ============== TOTAL RETURN 0.48% 1.30% 2.77%(2) RATIOS/SUPPLEMENTAL DATA: Net assets, end of year (000's) $80,260 $ 85,138 $ 73,525 Ratio of net operating expenses to average net assets 0.90% 0.90% 0.90%(3) Ratio of net investment income to average net assets 0.46% 1.24% 2.99%(3) Ratio of expenses to average net assets prior to waived fees and reimbursed expenses 0.98% 1.02% 1.09%(3) Ratio of net investment income to average net assets prior to waived fees and reimbursed expenses 0.38% 1.12% 2.80%(3) </Table> (1) For the period from commencement of offering of Class 1 shares, June 5, 2000 to April 30, 2001. (2) Not Annualized. (3) Annualized. See Notes to Financial Statements 21 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- FINANCIAL HIGHLIGHTS - CLASS 1 - -------------------------------------------------------------------------------- <Table> <Caption> BOSTON ADVISORS NEW YORK MUNICIPAL MONEY MARKET FUND ----------------- FOR THE PERIOD ENDED APRIL 30, 2003(1) ----------------- NET ASSET VALUE, BEGINNING OF PERIOD $ 1.000 -------- INCREASE IN NET ASSETS FROM OPERATIONS Net investment income 0.005 -------- Net increase from investment operations 0.005 -------- DISTRIBUTIONS TO SHAREHOLDERS FROM: Net investment income (0.005) -------- Total distributions (0.005) -------- NET ASSET VALUE, END OF PERIOD $ 1.000 ======== TOTAL RETURN 0.53%(2) RATIOS/SUPPLEMENTAL DATA: Net assets, end of period (000's) $131,024 Ratio of net operating expenses to average net assets 0.65%(3) Ratio of net investment income to average net assets 0.60%(3) Ratio of expenses to average net assets prior to waived fees and reimbursed expenses 1.10%(3) Ratio of net investment income to average net assets prior to waived fees and reimbursed expenses 0.15%(3) </Table> (1) For the period from commencement of offering of Class 1 shares, June 11, 2002 to April 30, 2003. (2) Not Annualized. (3) Annualized. See Notes to Financial Statements 22 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS APRIL 30, 2003 - -------------------------------------------------------------------------------- 1 -- SIGNIFICANT ACCOUNTING POLICIES Boston Advisors Trust (the "Trust") is a diversified, open-end management investment company registered under the Investment Company Act of 1940, as amended. The Trust was established as a Massachusetts Business Trust on September 30, 1999. The Trust currently offers four Funds: Boston Advisors Cash Reserves Fund (the "Cash Reserves Fund"), Boston Advisors U.S. Government Money Market Fund (the "U.S. Government Money Market Fund"), Boston Advisors Tax Free Money Market Fund (the "Tax Free Money Market Fund"), and Boston Advisors New York Municipal Money Market Fund (the "New York Municipal Money Market Fund"), (each, a Fund). The investment objective of the Funds seeks to preserve capital and maintain liquidity, consistent with seeking maximum current income. Additionally the Tax Free Money Market Fund seeks to generate income that is substantially exempt from federal income taxes and the New York Municipal Money Market Fund seeks to generate income that is substantially exempt from federal income tax and personal income taxes imposed by New York State and New York municipalities. The Cash Reserves Fund has issued two classes of shares (Class 1 and Class 2 shares). Class 1 shares have a 12b-1 distribution fee. There are no other class specific expenses for either share class. The following is a summary of significant accounting policies consistently followed by the Funds in the preparation of their financial statements. The policies are in conformity with accounting principles generally accepted in the United States of America. A. SECURITY VALUATION -- Each Fund values investment securities utilizing the amortized cost valuation method permitted by Rule 2a-7 of the Investment Company Act of 1940, pursuant to which each fund must comply with certain conditions. This pricing method involves initially valuing a fund security at its cost and thereafter assuming a constant amortization to maturity of any discount or premium. B. INCOME -- Interest income is determined on the basis of interest accrued, adjusted for amortization of premium or accretion of discount. C. EXPENSES -- The Trust accounts separately for the assets, liabilities and operations of each Fund. Direct expenses of each Fund are charged to that fund while general expenses are allocated among the Trust's respective portfolios based on their respective net assets. The investment income and expenses of each Fund (other than class specific expenses) and realized gains and losses on investments of each fund are allocated to each class of shares based upon their relative net asset value on the date income is earned or expenses and realized gains or losses are incurred. D. REPURCHASE AGREEMENTS -- Each Funds' custodian and other banks acting in a sub-custodian capacity take possession of the collateral pledged for investments in repurchase agreements. The underlying collateral is valued daily on a mark-to-market basis to determine that the value, including accrued interest, exceeds the repurchase price. In the event of the seller's default of the obligation to repurchase, each Fund has a right to liquidate the collateral and apply the proceeds in satisfaction of the obligation. Under certain circumstances, in the event of default or bankruptcy by the other party to the agreement, realization and/or retention of the collateral may be subject to legal proceedings. E. USE OF ESTIMATES -- The preparation of the financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and 23 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS (CONTINUED) APRIL 30, 2003 - -------------------------------------------------------------------------------- assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of income and expense during the reporting period. Actual results could differ from those estimates. F. OTHER -- Investment transactions are accounted for on a trade-date basis. Gains and losses on securities are determined on the basis of identified cost. 2 -- TAXES AND DISTRIBUTIONS TO SHAREHOLDERS Each Fund's policy is to comply with the provisions of the Internal Revenue Code (the "Code") applicable to regulated investment companies and to distribute to shareholders each year substantially all of its net investment income, including any net realized gain on investments. Accordingly, no provision for federal income or excise tax is necessary. The net investment income of each Fund is declared as a dividend daily, and paid monthly, to shareholders of record at the close of business on record date. Net realized gains on portfolio securities, if any, are distributed at least annually. Distributions are paid in the form of additional shares of the same Fund or, at the election of the shareholder, in cash. For U.S. Government Money Market Fund and Tax Free Money Market Fund, certain distributions may be paid from net interest earned and designated as tax exempt interest. Such distributions are not includable by shareholders as income subject to federal and/or state taxes, but may be subject to federal alternative minimum tax. 24 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS (CONTINUED) APRIL 30, 2003 - -------------------------------------------------------------------------------- Income dividends and capital gain distributions are determined in accordance with U.S. federal income tax regulations which may differ from accounting principles generally accepted in the United States of America. During the year ended April 30, 2003, the tax basis of distributions paid were as follows: <Table> <Caption> ORDINARY INCOME TAX-EXEMPT INCOME --------------- ----------------- Cash Reserves Fund Class 1 $10,966,549 -- Class 2 232,032 -- U.S. Government Money Market Fund 1,523,862 -- Tax Free Money Market Fund -- $441,796 New York Municipal Money Market Fund -- 685,616 </Table> <Table> <Caption> As of April 30, 2003, the components of distributable earnings on a tax basis were as follows: - ----------------------------------------------------------------------------------------------------- NEW YORK U. S. GOVERNMENT TAX FREE MUNICIPAL CASH RESERVES MONEY MARKET MONEY MARKET MONEY MARKET FUND FUND FUND FUND ------------- ---------------- ------------ ------------ Undistributed Ordinary Income $261,558 $56,308 $12,755 $33,512 Undistributed Long-Term Gain (Loss) -- -- -- -- </Table> <Table> <Caption> At April 30, 2003, the Funds had capital loss carry forwards to offset future gains, if any, to the extent permitted by the Code, of the following: - ----------------------------------------------------------------------------------------------------------- AMOUNT EXPIRATION DATE -------------------- ----------------------------- Cash Reserves Fund $314 2009 </Table> 3 -- INVESTMENT ADVISER FEE Boston Advisors, Inc. (the "Advisor"), a wholly owned subsidiary of The Advest Group, Inc. ("Advest Group"), serves as the investment advisor to the Funds, providing management, investment advisory and other services. In exchange, the Funds have agreed to pay the Advisor a monthly advisory fee at an annual rate of 0.55% of each Fund's average daily net assets. For the Cash Reserves Fund, the Advisor has agreed to waive its advisory fee and reimburse the Fund for its expenses through September 1, 2003, to the extent necessary that the total expenses of the Fund do not exceed 0.83% and 0.65% of the average daily net assets of Class 1 and Class 2, respectively. Prior to August 30, 2002, the Cash Reserves Fund was reimbursed to the extent necessary that the total expenses of the Fund did not exceed 0.90% of the average daily net assets of Class 1. For the the U.S. Government Money Market Fund and the Tax Free Money Market Fund the Advisor has also agreed to waive its advisory fee and reimburse each Fund for its expenses through September 1, 2003, to the extent necessary that the total expenses of the Fund do not exceed 0.90% of the average daily net assets of Class 1. For the New York Municipal Money Market Fund the Advisor agreed to waive its advisory fee to the extent necessary that the total expenses of the Fund do not exceed 0.65% of the average daily net assets. The Advisor reserves the right to be reimbursed for management fees waived and fund 25 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS (CONTINUED) APRIL 30, 2003 - -------------------------------------------------------------------------------- expenses paid by it during the prior two years to the extent that a Fund's expense ratio falls below the expense limitations as of June 30, 2003. 4 -- DISTRIBUTION PLAN Advest, Inc. ("Advest"), a wholly owned subsidiary of The Advest Group, Inc. ("Advest Group"), serves as the distributor to the Funds. The Funds have adopted a Rule 12b-1 distribution plan (the "Plan") authorizing each Fund's Class 1 shares to pay service fees equal to 0.25% of the Class 1 average daily net assets. Advest may pay up to the entire fee under the Plan to its own representatives or to other dealers providing services in connection with the sale of each Fund's shares. To the extent the fee is not paid to others, Advest may retain this fee as compensation for its services and expenses incurred in accordance with the Plan. For the year ended April 30, 2003, the distribution fees payable to Advest by the the Cash Reserves Fund, the U.S. Government Money Market Fund, the Tax Free Money Market Fund and the New York Municipal Money Market Fund amounted to $3,236,908, $505,944, $228,814 and $300,172, respectively. Advest voluntarily agreed to reimburse the New York Municipal Money Market Fund the full amount of the Fund's distribution fees for the period ended April 30, 2003. 5 -- TRANSFER AGENT FEE Advest Transfer Services, Inc. ("ATS"), a subsidiary of the Advest Group, serves as the Funds' shareholder servicing agent and transfer agent. ATS receives account fees and asset-based fees that vary according to account size and type of account. 6 -- ADMINISTRATION, CUSTODIAN AND FUND ACCOUNTING FEE Investors Bank & Trust ("Investors Bank") serves as the Trust's administrator, custodian and fund accounting agent. As compensation for its services, Investors Bank receives out-of-pocket costs, transaction fees, and asset based fees, which are accrued daily and paid monthly. Fees for such services paid to Investors Bank by the Funds are reflected as custodian and fund accounting expense in the statement of operations. 7 -- INVESTMENT SUB-ADVISORY FEE On October 2, 2002, the Board of Trustees of the Trust unanimously approved and voted to recommend that the shareholders of the Cash Reserves Fund and the U.S. Government Money Market Fund approve a subadvisory agreement (the "Subadvisory Agreement") among the Funds, the Advisor and MONY Capital Management, Inc. (the "Subadviser"). The Advisor and the Subadviser are both wholly-owned subsidiaries of The MONY Group Inc., a diversified financial services company offering insurance, brokerage, asset management and other financial services. The subadvisory relationship with the Funds commenced on December 2, 2002. The Subadvisory Agreement provides that the Advisor will pay the Subadviser a fee equal to 0.03% of each Fund's average daily net assets. The Funds will not pay any fee directly to the Subadviser. 8 -- SHAREHOLDER MEETING (UNAUDITED) On November 13, 2002, the Trust held a joint special meeting of shareholders of the Cash Reserves Fund and the U.S. Government Money Market Fund to consider for approval a proposed investment sub-advisory 26 <Page> BOSTON ADVISORS TRUST - ------------------------------------------------------------------------- NOTES TO FINANCIAL STATEMENTS (CONTINUED) APRIL 30, 2003 - -------------------------------------------------------------------------------- agreement between MONY Capital Management, Inc., Boston Advisors, Inc., the Cash Reserves Fund and the U.S. Government Money Market Fund. The results of the shareholder vote were as follows: <Table> Cash 1,297,759,687 shares or 98.27% of the Reserves shares voting voted in favor; 14,184,715 Fund: shares or 1.07% of the shares voting voted against; and 8,636,449 shares or 0.65% of the shares voting abstained. U.S. Government 198,260,691 shares or 98.55% of the Money shares voting voted in favor; 1,743,193 Market shares or 0.87% of the shares voting Fund: voted against; and 1,176,758 shares or 0.58% of the shares voting abstained. </Table> 27 <Page> REPORT OF INDEPENDENT ACCOUNTANTS To the Shareholders of Boston Advisors Cash Reserves Fund, Boston Advisors U.S. Government Money Market Fund, Boston Advisors Tax Free Money Market Fund, and Boston Advisors New York Municipal Money Market Fund, and the Board of Trustees of Boston Advisors Trust: In our opinion, the accompanying statements of assets and liabilities, including the schedules of investments, and the related statements of operations and of changes in net assets and the financial highlights present fairly, in all material respects, the financial position of Boston Advisors Cash Reserves Fund, Boston Advisors U.S. Government Money Market Fund, Boston Advisors Tax Free Money Market Fund, and Boston Advisors New York Municipal Money Market Fund (each a fund of Boston Advisors Trust, hereafter referred to as the "Fund") at April 30, 2003, and the results of each of their operations, the changes in their net assets and their financial highlights for the periods presented, in conformity with accounting principles generally accepted in the United States of America. These financial statements and financial highlights (hereafter referred to as "financial statements") are the responsibility of the Fund's management; our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits of these financial statements in accordance with auditing standards generally accepted in the United States of America, which require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits, which included confirmation of securities at April 30, 2003 by correspondence with the custodian and brokers, provide a reasonable basis for our opinion. PricewaterhouseCoopers LLP Boston, Massachusetts June 16, 2003 28 <Page> SUPPLEMENTAL TAX INFORMATION (UNAUDITED) A total of 7.0% and 69.1% of the dividends distributed by the Boston Advisors Cash Reserves Fund and the Boston Advisors U.S. Government Money Market Fund, respectively, during the fiscal year was derived from interest on U.S. Government securities which is generally exempt from state income tax. The detailed analysis of the percentage of investments as follows: <Table> <Caption> BOSTON ADVISORS BOSTON ADVISORS U.S. GOVERNMENT MONEY CASH RESERVES FUND MARKET FUND ------------------ ---------------------- U.S Treasury Obligations 0.0% 0.0% GNMA 0.0% 0.0% FNMA 3.2% 25.0% FHLMC 1.6% 19.3% Other U.S. Government Agency Obligations 2.2% 24.8% Other 93.0% 30.9% </Table> Additionally, 100% of the dividends distributed by the Boston Advisors Tax Free Money Market Fund and the Boston Advisors New York Municipal Money Market Fund during the fiscal year was derived from Municipal securities which are exempt from state income tax. The fund will notify shareholders in January 2004 of amounts for use in preparing 2003 income tax returns. 29 <Page> TRUSTEES AND OFFICERS (UNAUDITED) The Trust's Board of Trustees provides broad supervision over the affairs of the Trust. The officers of the Trust are responsible for the Trust's operations. The Trustees and executive officers of the Trust are listed below, together with their principal occupations during the past five years. INTERESTED TRUSTEES <Table> <Caption> NUMBER OF TERM OF PRINCIPAL PORTFOLIOS IN OTHER NAME, OFFICE(1) OCCUPATION(S) TRUST COMPLEX DIRECTORSHIPS ADDRESS AND POSITION(S) AND LENGTH OF DURING PAST OVERSEEN BY HELD BY AGE HELD WITH TRUST TIME SERVED 5 YEARS TRUSTEE TRUSTEE - ------------------------------------------------------------------------------------------------------------------------------ Allen G. Botwinick Chairman of the Trustee and Chairman Executive Vice Four Advest, Inc. 90 State House Square Board and Trustee of the Board since President of Hartford, CT 06103 March 2000 Administration and Age: 60 Operations, The Advest Group, Inc. and Advest, Inc. Michael J. Vogelzang President, Chief Trustee, President Boston Four Advest, Inc. One Federal Street Executive Officer and Chief Executive Advisors, Inc., Boston, MA 02110 and Trustee Officer since March President and Chief Age: 42 2000 Investment Officer, 4/99 - present; Senior Vice President and Chief Investment Officer, 8/97 - 4/99. </Table> DISINTERESTED TRUSTEES <Table> <Caption> NUMBER OF TERM OF PRINCIPAL PORTFOLIOS IN OTHER NAME, OFFICE(1) OCCUPATION(S) TRUST COMPLEX DIRECTORSHIPS ADDRESS AND POSITION(S) AND LENGTH OF DURING PAST OVERSEEN BY HELD BY AGE HELD WITH TRUST TIME SERVED 5 YEARS TRUSTEE TRUSTEE - ------------------------------------------------------------------------------------------------------------------------------ Mone Anathan III Trustee Trustee since March Harvard Divinity Four Brookstone, Inc. 99 Garden Street 2000 School, Student, (specialty Cambridge, MA 02136 9/97 - present; retailer) Age: 64 Hugh A. Dunlap, Jr. Trustee Trustee since March Retired, 5/95 - Four None 29 Lowell Road 2000 present. Brookline, MA 02445 Age: 71 </Table> 30 <Page> <Table> <Caption> NUMBER OF TERM OF PRINCIPAL PORTFOLIOS IN OTHER NAME, OFFICE(1) OCCUPATION(S) TRUST COMPLEX DIRECTORSHIPS ADDRESS AND POSITION(S) AND LENGTH OF DURING PAST OVERSEEN BY HELD BY AGE HELD WITH TRUST TIME SERVED 5 YEARS TRUSTEE TRUSTEE - ------------------------------------------------------------------------------------------------------------------------------ Ezekiel Russell Peach, Jr. Trustee Trustee since March Retired, 12/99 - Four Wentworth 84 137 Atlantic Avenue 2000 present; Robert, Irrevocable Marblehead, MA 01945 Finnegan & Lynah, Trust Age: 68 PC (public accounting), partner/ principal, 1968 - 12/99. </Table> (1) Each Trustee will hold office until his successor is elected or the Trust is terminated; except that (a) any Trustee may resign by written instrument signed by him and delivered to the other Trustees or to any Trust officer, which will take effect upon delivery or upon such later date as is specified; (b) any Trustee may be removed at any time with or without cause by written instrument, signed by at least two-thirds of the number of Trustees prior to such removal, specifying the date when such removal will become effective; (c) any Trustee who requests in writing to be retired or who has become incapacitated by illness or injury may be retired by written instruments signed by a majority of the other Trustees, specifying the date of his retirement; or (d) a Trustee may be removed at any special meeting of the shareholders of the Trust by a vote of two-thirds of the outstanding shares of beneficial interest of the Trust. OFFICERS <Table> <Caption> PRINCIPAL NAME, TERM OF OFFICE(2) OCCUPATION(S) ADDRESS AND POSITION(S) AND LENGTH OF DURING PAST AGE HELD WITH TRUST TIME SERVED 5 YEARS - ---------------------------------------------------------------------------------------- Todd A. Finkelstein Vice President Vice President since Boston One Federal Street March 2000 Advisors, Inc., Boston, MA 02110 Senior Vice Age: 42 President and Director of Fixed Income, 8/98 - present; BankBoston, Vice President and Senior Investment Officer, 12/94 - 8/98. Donna C. McAdam Treasurer and Treasurer and Chief Boston One Federal Street Chief Financial Financial Officer Advisors, Inc., Vice Boston, MA 02110 Officer since March 2000 President and Chief Age: 55 Operating Officer, 4/87 - present. Annellen McNamara Assistant Assistant Treasurer Director, Mutual Investors Bank & Trust Treasurer since March 2002 Fund Administration, 200 Clarendon Street Investors Bank & Boston, MA 02116 Trust Company, Age: 36 6/02 - present; Senior Manager, 1/00 - 5/02; Manager 1996 - 1999. John DelPrete Secretary Secretary since June Senior Associate Investors Bank & Trust 2001 Counsel, Mutual Fund 200 Clarendon Street Administration, Boston, MA 02116 Investors Bank & Age: 34 Trust Company, 1/01 - present; Associate Counsel, 5/97 - 12/00. Ellen O'Leary Assistant Assistant Secretary Associate Counsel, Investors Bank & Trust Secretary since September 2002 Mutual Fund 200 Clarendon Street Administration, Boston, MA 02116 Investors Bank & Age: 29 Trust Company, 1999 - present; Fund Accountant, 1996 - 1999. </Table> (2) Officers are elected to hold such office until their successor is elected and qualified to carry out the duties and responsibilities of their office, or until he or she resigns or is removed from office. 31 <Page> FORM N-CSR(2 OF 3) ITEM 2 (CODE OF ETHICS): Not applicable to this filing. ITEM 3 (AUDIT COMMITTEE FINANCIAL EXPERT): Not applicable to this filing. ITEM 4 (PRINCIPAL ACCOUNTANT FEES AND SERVICES): Not applicable to this filing. ITEM 5 (RESERVED) ITEM 6 (RESERVED) ITEM 7 (DISCLOSURE OF PROXY VOTING POLICIES & PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES): Not applicable to this filing. ITEM 8 (RESERVED) ITEM 9 (CONTROLS AND PROCEDURES): SUB-ITEM 9a - Within the 90-day period immediately preceding the filing of this Report, the Trust's Chief Executive Officer and Principal Financial Officer have each evaluated the effectiveness of the Trust's "Disclosure Controls and Procedures" and have concluded that they were effective. As such term is used above, the Trust's Controls and Procedures are controls and other procedures of the Trust that are designed to ensure that information required to be disclosed by the Trust in the reports that it files or submits under the Securities Exchange Act of 1934 is recorded, processed, summarized and reported, within the time periods specified in the Security Exchange Commission's rules and forms. Disclosure Controls and Procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by the Trust in such reports is accumulated and communicated to the Trust's management, including its principal executive officer or officers and principal financial officer or officers, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure. SUB-ITEM 9b - There were no significant changes in the Trust's internal controls or in other factors that could significantly affect these controls subsequent to the date of their evaluation, including any corrective actions with regard to significant deficiencies and material weaknesses ITEM 10 (EXHIBITS): SUB-ITEM 10a - Not applicable to this filing SUB-ITEM 10b - Certification Exhibits are attached. <Page> FORM N-CSR(3 OF 3) 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. Boston Advisors Trust By: /s/ Michael J. Vogelzang ---------------------------------------------------------- Michael J. Vogelzang, Chief Executive Officer Date June 23, 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: /s/ Michael J. Vogelzang ------------------------------------------------- Michael J. Vogelzang, Chief Executive Officer Date June 23, 2003 --------------------- By: /s/ Donna C. McAdam ------------------------------------------------- Donna C. McAdam, Chief Financial Officer Date June 23, 2003 ------------------------