Exhibit 17(c) (BULL LOGO) Merrill Lynch Investment Managers Semi-Annual Report February 28, 2002 Merrill Lynch U.S. Government Mortgage Fund www.mlim.ml.com This report is not authorized for use as an offer of sale or a solicitation of an offer to buy shares of the Fund unless accompanied or preceded by the Fund's current prospectus. Past performance results shown in this report should not be considered a representation of future performance. Investment return and principal value of shares will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. Statements and other information herein are as dated and are subject to change. Merrill Lynch U.S. Government Mortgage Fund Box 9011 Princeton, NJ 08543-9011 Printed on post-consumer recycled paper Merrill Lynch U.S. Government Mortgage Fund DEAR SHAREHOLDER Economic Environment During the six-month period ended February 28, 2002, the US Treasury yield curve steepened dramatically. The Federal Reserve Board eased monetary policy four times during the period, bringing the Federal Funds rate 175 basis points (1.75%) lower to 1.75%. Yields on short-term and intermediate-term Treasury notes fell also with the two-year and five-year notes 57 basis points and 19 basis points lower, respectively, at the end of the period. Longer-term interest rates, though volatile throughout the period, ended little changed with ten-year and 30-year yields less than five basis points higher at the end of the six-month period. The performance of mortgage-backed securities (MBS) for the period were aided by a steeper Treasury yield curve, more stable long-term interest rates and a volatile corporate sector. During the six-month period ended February 28, 2002, MBS outperformed both the Treasury and credit sectors on a total rate-of-return basis. This can be illustrated in a very broad sense by the returns of these sectors in the unmanaged Salomon Smith Barney Broad Investment Grade Index. The mortgage sector of this Index returned +3.66% for the six-month period ended February 28, 2002, which compares favorably to the +2.46% and +2.42% returns of the Treasury and corporate sectors, respectively. To illustrate further, 30-year Federal National Mortgage Association 6% returned +4.20% for the six-month period, which compares favorably to the return of the 10-year Treasury note, which returned +1.73% for the same period with a similar average life. Also, in 15-year MBS, Fannie Mae Dwarf 6% returned +3.86% for the period, comparing favorably to the return of the five-year Treasury note, which returned +3.08% for the same period and also with a similar average life. Portfolio Strategy For the six months ended February 28, 2002, the Fund's Class A, Class B, Class C and Class D Shares returned +3.39%, +3.00%, +2.98% and +3.26%, respectively. (Fund results shown do not reflect sales charges and would be lower if sales charges were included. Complete performance information can be found on pages 3 and 4 of this report to shareholders.) We had an ongoing strategy of avoiding unwanted prepayments, eluding those MBS that would be adversely affected by an increase to prepayments. We concentrated our investments during the period in current coupon 6% and 6.5% MBS, which also participated in dollar rolls enhancing performance. Early in the period we sold some Fannie Mae multifamily pools that were benchmarked off of the very short part of the US Treasury yield curve. With short-term yields at historically low levels, we sold these pools in favor of higher-yielding MBS collateral and longer multifamily pools benchmarked off the five-year - ten-year portion of the Treasury yield curve. In addition to having stated final maturity dates of five years - ten years, the multifamily pools we purchased have protection by means of lockouts and yield maintenance. The US Treasury yield curve remains very steep offering "roll down" value. We favored the five-year - ten-year area of the Treasury curve as it represents the steepest, and therefore most valuable part of the curve. Later in the period as interest rate volatility subsided and long-term interest rates became more stable, we moved higher in coupon. With the ten-year yield a benchmark for MBS off its low, prepayment risk had subsided and coupon income became a larger component of total rate of return. Merrill Lynch U.S. Government Mortgage Fund, February 28, 2002 The Fund benefited from being heavily weighted in MBS for the period as it proved to be a prudent fixed-income investment. We will continue to remain heavily weighted in MBS as we believe they offer excellent liquidity and credit quality with yields that remain attractive. Additionally, with short-term interest rates so low, we anticipate continuing to remain fully invested. In Conclusion We thank you for your continued investment in Merrill Lynch U.S. Government Mortgage Fund, and we look forward to discussing our outlook and strategy with you in our next report to shareholders. Sincerely, (Terry K. Glenn) Terry K. Glenn President and Trustee (Frank Viola) Frank Viola Portfolio Manager (Teresa L. Giacino) Teresa L. Giacino Portfolio Manager April 9, 2002 We are pleased to announce that Frank Viola and Teresa Giacino have been named Portfolio Managers and are responsible for the day-to-day management of Merrill Lynch U.S. Government Mortgage Fund. Mr. Viola joined Merrill Lynch Investment Managers, L.P. (MLIM) in 1997 as Portfolio Manager in the US Fixed-Income Group. Ms. Giacino joined MLIM in 1985, gaining experience in all phases of mortgage investment. Merrill Lynch U.S. Government Mortgage Fund, February 28, 2002 PERFORMANCE DATA About Fund Performance Investors are able to purchase shares of the Trust through the Merrill Lynch Select Pricing SM System, which offers four pricing alternatives: * Class A Shares incur a maximum initial sales charge (front-end load) of 4% and bear no ongoing distribution or account maintenance fees. Class A Shares are available only to eligible investors, as detailed in the Fund's prospectus. If you were a Class A shareholder prior to October 21, 1994, your Class A Shares were redesignated to Class D Shares on October 21, 1994. However, in the case of certain eligible investors, the shares were simultaneously exchanged for Class A Shares. * Class B Shares are subject to a maximum contingent deferred sales charge of 4% if redeemed during the first year, decreasing 1% each year thereafter to 0% after the fourth year. In addition, Class B Shares are subject to a distribution fee of 0.50% and an account maintenance fee of 0.25%. These shares automatically convert to Class D Shares after approximately 10 years. (There is no initial sales charge for automatic share conversions.) * Class C Shares are subject to a distribution fee of 0.55% and an account maintenance fee of 0.25%. In addition, Class C Shares are subject to a 1% contingent deferred sales charge if redeemed within one year of purchase. * Class D Shares incur a maximum initial sales charge of 4% and an account maintenance fee of 0.25% (but no distribution fee). None of the past results shown should be considered a representation of future performance. Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of fund shares. Figures shown in the "Recent Performance Results" and "Average Annual Total Return" tables assume reinvestment of all dividends and capital gains distributions at net asset value on the payable date. Investment return and principal value of shares will fluctuate so that shares, when redeemed, may be worth more or less than their original cost. Dividends paid to each class of shares will vary because of the different levels of account maintenance, distribution and transfer agency fees applicable to each class, which are deducted from the income available to be paid to shareholders. Recent Performance Results* Ten Years/ 6-Month 12-Month Since Inception Standardized As of February 28, 2002 Total Return Total Return Total Return 30-Day Yield ML U.S. Government Mortgage Fund Class A Shares +3.39% +7.73% +73.42% 4.56% ML U.S. Government Mortgage Fund Class B Shares +3.00 +7.02 +76.90 3.99 ML U.S. Government Mortgage Fund Class C Shares +2.98 +6.97 +63.35 3.94 ML U.S. Government Mortgage Fund Class D Shares +3.26 +7.58 +86.25 4.32 *Investment results shown do not reflect sales charges; results shown would be lower if a sales charge was included. Total investment returns are based on changes in net asset values for the periods shown, and assume reinvestment of all dividends and capital gains distributions at net asset value on the payable date. The Fund's ten-year/inception periods are from 10/21/94 for Class A & Class C Shares and ten years for Class B & Class D Shares. Merrill Lynch U.S. Government Mortgage Fund, February 28, 2002 PERFORMANCE DATA (concluded) Average Annual Total Return % Return Without % Return With Sales Charge Sales Charge** Class A Shares* One Year Ended 12/31/01 +7.87% +3.55% Five Years Ended 12/31/01 +6.96 +6.09 Inception (10/21/94) through 12/31/01 +7.67 +7.06 *Maximum sales charge is 4%. **Assuming maximum sales charge. % Return % Return Without CDSC With CDSC** Class B Shares* One Year Ended 12/31/01 +7.04% +3.04% Five Years Ended 12/31/01 +6.15 +6.15 Ten Years Ended 12/31/01 +5.64 +5.64 *Maximum contingent deferred sales charge is 4% and is reduced to 0% after four years. **Assuming payment of applicable contingent deferred sales charge. % Return % Return Without CDSC With CDSC** Class C Shares* One Year Ended 12/31/01 +6.99% +5.99% Five Years Ended 12/31/01 +6.10 +6.10 Inception (10/21/94) through 12/31/01 +6.80 +6.80 *Maximum contingent deferred sales charge is 1% and is reduced to 0% after one year. **Assuming payment of applicable contingent deferred sales charge. % Return Without % Return With Sales Charge Sales Charge** Class D Shares* One Year Ended 12/31/01 +7.60% +3.29% Five Years Ended 12/31/01 +6.70 +5.83 Ten Years Ended 12/31/01 +6.19 +5.75 *Maximum sales charge is 4%. **Assuming maximum sales charge. Merrill Lynch U.S. Government Mortgage Fund, February 28, 2002 SCHEDULE OF INVESTMENTS Face Interest Original Maturity Issue Amount Rate Date(s) Value US Government Agency Mortgage-Backed Obligations*--95.8% Fannie Mae $ 24,997,510 5.50% 1/01/2032 - 3/01/2032 $24,166,969 45,000,000 6.00 TBA(9) 44,732,700 104,672,694 6.50 12/01/2008 - 1/01/2014 108,653,986 178,189,930 6.50 4/01/2026 - 11/01/2031 181,221,521 11,039,067 7.00 11/01/2013 - 11/01/2014 11,538,754 111,927 7.00 8/01/2029 115,480 257 7.50 1/01/2025 271 287,548 8.00 9/01/2024 - 9/01/2027 306,047 274,735 8.50 5/01/2010 - 8/01/2012 292,610 6,995,272 8.50(3) 7/15/2023 7,599,592 4,550,324 9.50 3/01/2020 4,868,847 7,376,524 11.00 2/01/2011 - 11/01/2020 8,357,461 9,626 11.50 6/01/2015 10,691 694,296 13.00 8/01/2010 - 4/01/2015 808,061 Fannie Mae #0384603 6,216,297 5.50(2) 12/01/2011 6,186,508 Mortgage-Backed Securities-- #0384518 7,683,098 5.56(2) 12/01/2011 7,620,366 Multi-Family++ #0384046 9,946,745 5.67(10) 9/01/2006 10,251,364 #0384758 11,488,396 5.86(10) 1/01/2009 11,815,098 #0254243 6,977,619 6.00(7) 2/01/2009 7,126,540 #0160465 32,461,929 6.16(8) 8/01/2013 33,827,729 #0380332 9,237,197 6.195(7) 6/01/2005 9,680,811 #0380021 5,994,185 6.49(2) 1/01/2008 6,334,312 #0073894 943,816 6.525(7) 12/01/2003 979,254 #0073885 850,586 6.545(2) 1/01/2007 902,865 #0073873 733,863 6.625(2) 2/01/2007 781,148 #0073221 1,395,850 6.715(7) 10/01/2005 1,484,395 #0073915 1,429,479 6.87(2) 1/01/2007 1,533,736 #0073910 11,334,086 6.875(2) 1/01/2007 12,165,086 #0375043 3,428,730 6.895(2) 4/01/2007 3,682,865 #0375007 11,596,975 6.94(2) 3/01/2007 12,477,571 #0375012 3,144,531 6.95(2) 4/01/2007 3,384,549 #0073944 13,285,157 6.96(2) 1/01/2007 14,302,483 #0073952 2,619,478 6.96(2) 1/01/2007 2,819,748 #0073946 5,124,948 6.97(2) 2/01/2007 5,519,225 #0073969 7,523,327 7.05(2) 2/01/2007 8,124,355 #0073962 4,503,329 7.085(2) 2/01/2007 4,870,599 #0073967 4,375,610 7.105(2) 2/01/2007 4,735,845 #0073992 2,487,875 7.115(2) 2/01/2007 2,693,688 #0375069 1,019,285 7.122(2) 4/01/2007 1,103,885 #0073943 1,350,628 7.18(4) 2/01/2019 1,446,198 #0073608 4,654,176 7.49(2) 8/01/2006 5,092,800 #0375052 4,555,563 7.50(2) 3/01/2027 5,058,501 #0109076 2,055,715 7.59(2) 8/01/2006 2,255,438 #0160024 2,112,779 7.625(2) 11/01/2003 2,186,024 #0160095 6,844,537 7.66(2) 3/01/2004 7,126,791 Fannie Mae 98-M1-IO2 90,043,783 0.68635(1) 2/25/2013 3,880,887 Mortgage-Backed Securities-- 94-M1-IO 45,986,957 0.87(1) 10/25/2003 712,798 REMICs**--Multi-Family++ 98-M3-B 10,355,266 6.45 8/17/2013 10,770,967 97-M8-A2 19,135,000 7.16 1/25/2022 20,582,917 96-M3-A2 40,500,000 7.41 3/25/2021 43,697,560 Merrill Lynch U.S. Government Mortgage Fund, February 28, 2002 SCHEDULE OF INVESTMENTS (continued) Face Interest Original Maturity Issue Amount Rate Date(s) Value US Government Agency Mortgage-Backed Obligations* (concluded) Fannie Mae REMICs** 94-56-TB $5,239,230 6.50(1)% 7/25/2022 $880,149 Trust 273 2,490,081 7.00(1) 7/01/2026 475,017 96-W1-AL 6,764,006 7.25 3/25/2026 7,030,643 Freddie Mac 466 10.00 7/01/2019 518 Participation Certificates 3,883,765 10.50 1/01/2010 - 9/01/2020 4,373,702 906,532 11.00 8/01/2010 - 9/01/2020 1,024,478 1,038,747 11.50 12/01/2011 - 6/01/2020 1,190,112 524,094 12.00 5/01/2010 - 6/01/2020 598,435 723,959 12.50 11/01/2014 - 7/01/2019 826,579 1,351,186 13.00 11/01/2009 - 2/01/2016 1,538,308 Freddie Mac 29,847,514 6.00 4/01/2009 - 2/01/2017 30,373,852 Participation Certificates--Gold Program 94,353,955 6.00 6/01/2029 - 2/01/2032 94,015,286 24,998,235 6.50 9/01/2013 - 1/01/2017 25,818,693 263,605,531 6.50 10/01/2028 - 10/01/2031(9) 268,077,078 37,980,270 7.00 8/01/2011 - 6/01/2016 39,709,142 140,967,540 7.00 9/01/2028 - 10/01/2031 145,379,859 6,700,757 7.50 5/01/2009 - 10/01/2011 7,115,807 205,270 7.50 8/01/2017 214,897 6,846,255 8.00 1/01/2007 - 7/01/2012 7,241,367 53,460 8.00 10/01/2027 56,820 1,927,446 8.50 1/01/2025 - 7/01/2025 2,091,765 1,147,227 10.50 10/01/2020 - 12/01/2020 1,300,158 Freddie Mac REMICs** Trust 134 428,683 9.00(1) 4/01/2022 69,418 Trust 1220 2,051,043 10.00 2/15/2022 2,034,091 Government National Mortgage Association 8,963,838 6.00 5/15/2024 - 11/15/2031 8,956,313 82,078,045 6.50 10/15/2023 - 7/15/2029(9) 83,707,682 163,100,338 7.00 4/15/2023 - 11/15/2031 168,973,443 3,214 7.50 1/15/2007 3,414 54,730,177 7.50 7/15/2022 - 2/15/2030(9) 57,729,088 23,691,586 8.00 1/15/2024 - 8/15/2026 25,298,191 11,550,402 10.00 12/15/2015 - 12/15/2021 13,009,006 48,969 10.50 1/15/2016 - 4/15/2021 55,930 78 11.00 1/15/2016 91 1,037 11.50 8/15/2013 1,199 Total US Government Agency Mortgage-Backed Obligations (Cost--$1,631,589,948) 1,669,058,427 US Government Agency Obligations***--11.5% Fannie Mae 200,000,000 1.71 3/13/2002 199,886,333 Total US Government Agency Obligations (Cost--$199,886,333) 199,886,333 Merrill Lynch U.S. Government Mortgage Fund, February 28, 2002 SCHEDULE OF INVESTMENTS (concluded) Face Amount Issue Value Repurchase Agreements****--6.6% $115,700,000 Morgan Stanley & Company, Inc., purchased on 2/28/2002 to yield 1.85% to 3/01/2002 $ 115,700,000 Total Repurchase Agreements (Cost--$115,700,000) 115,700,000 Nominal Value Strike Notification Covered by Options Price Date Options Purchased--0.0% Call Options 10,902,149 Government National Mortgage Association, Purchased 30-Year, 6.75% Adjustable Rate Mortgage(5)(6) 100 9/20/2011(5) 8,722 Total Options Purchased (Cost--$0) 8,722 Total Investments (Cost--$1,947,176,281)--113.9% 1,984,653,482 Options Written--0.0% Put Options 10,902,149 Government National Mortgage Association, Written 30-Year, 6.75% Adjustable Rate Mortgage(5)(6) 100 9/20/2011(5) (10,902) Total Options Written (Premiums Received--$0) (10,902) Total Investments, Net of Options Written (Cost--$1,947,176,281)--113.9% 1,984,642,580 Liabilities in Excess of Other Assets--(13.9%) (242,643,887) --------------- Net Assets--100.0% $1,741,998,693 =============== (1)Represents the interest only portion of a mortgage-backed obligation. (2)Represents balloon mortgages that amortize on a 20-year, 25-year or 30-year schedule and have 10-year original maturities. (3)Federal Housing Administration/Veterans' Administration Mortgages packaged by the Federal National Mortgage Association. (4)Represents a balloon mortgage that amortizes on a 22-year schedule and has a 22-year original maturity. (5)Represents European style options which can be exercised only on the notification date. These options, when combined, represent a standby purchase commitment whereby the Fund is obligated to purchase the outstanding principal amount of specific Government National Mortgage Association, 30-year, 6.75% Adjustable Rate Mortgage pools as of September 20, 2011. For this commitment, the Fund receives a net .12% per annum based on the nominal value covered by the options. (6)Adjustable Rate Security. The interest rate resets annually at the 1-year Constant Maturing Treasury rate plus 1.5%, subject to a 1% annual adjustment cap and an 11% life cap. (7)Represents balloon mortgages that amortize on a 30-year schedule and have 7-year original maturities. (8)Represents a mortgage that amortizes on a 15-year schedule and has a 15-year original maturity. (9)Represents or includes a "to-be-announced" (TBA) transaction. The Fund has committed to purchasing or selling securities for which all specific information is not available at this time. (10)Represents a balloon mortgage that amortizes on a 30-year schedule and has a 5-year original maturity. ++Underlying multi-family loans have prepayment protection by means of lockout periods and/or yield maintenance premiums. *Mortgage-Backed Obligations are subject to principal paydowns as a result of prepayments or refinancings of the underlying mortgage instruments. As a result, the average life may be substantially less than the original maturity. **Real Estate Mortgage Investment Conduits (REMIC). ***US Government Agency Obligations are traded on a discount basis; the interest rate shown reflects the discount rate paid at the time of purchase by the Fund. ****Repurchase Agreements are fully collateralized by US Government Agency Obligations. See Notes to Financial Statements. Merrill Lynch U.S. Government Mortgage Fund, February 28, 2002 FINANCIAL INFORMATION Statement of Assets and Liabilities as of February 28, 2002 Assets: Investments, at value (identified cost--$1,947,176,281) $1,984,644,760 Options purchased, at value (cost--$0) 8,722 Cash 2,027,033 Receivables: Securities sold $104,163,743 Interest 10,427,750 Beneficial interest sold 7,163,582 Principal paydowns 196,038 121,951,113 ------------ Prepaid registration fees and other assets 134,552 --------------- Total assets 2,108,766,180 --------------- Liabilities: Options written, at value (premiums received--$0) 10,902 Payables: Securities purchased 351,693,364 Beneficial interest redeemed 10,660,627 Dividends to shareholders 2,135,894 Investment adviser 553,521 Distributor 552,654 365,596,060 ------------ Accrued expenses and other liabilities 1,160,525 --------------- Total liabilities 366,767,487 --------------- Net Assets: Net assets $ 1,741,998,693 =============== Net Assets Class A Shares of beneficial interest, $.10 par value, Consist of: unlimited number of shares authorized $ 2,554,546 Class B Shares of beneficial interest, $.10 par value, unlimited number of shares authorized 5,448,439 Class C Shares of beneficial interest, $.10 par value, unlimited number of shares authorized 1,667,134 Class D Shares of beneficial interest, $.10 par value, unlimited number of shares authorized 7,693,791 Paid-in capital in excess of par 1,886,447,232 Accumulated realized capital losses on investments--net (199,278,748) Unrealized appreciation on investments--net 37,466,299 --------------- Net assets $ 1,741,998,693 =============== Net Asset Class A--Based on net assets of $256,344,749 and 25,545,456 Value: shares of beneficial interest outstanding $ 10.03 =============== Class B--Based on net assets of $546,595,662 and 54,484,390 shares of beneficial interest outstanding $ 10.03 =============== Class C--Based on net assets of $167,229,449 and 16,671,340 shares of beneficial interest outstanding $ 10.03 =============== Class D--Based on net assets of $771,828,833 and 76,937,905 shares of beneficial interest outstanding $ 10.03 =============== See Notes to Financial Statements. Merrill Lynch U.S. Government Mortgage Fund, February 28, 2002 FINANCIAL INFORMATION (continued) Statement of Operations for the Six Months Ended February 28, 2002 Investment Interest $ 46,753,475 Income: Expenses: Investment advisory fees$ 3,732,191 $ 3,732,191 Account maintenance and distribution fees--Class B 1,900,038 Account maintenance fees--Class D 917,991 Transfer agent fees--Class D 599,689 Transfer agent fees--Class B 458,459 Account maintenance and distribution fees--Class C 409,150 Accounting services 225,317 Transfer agent fees--Class A 196,584 Custodian fees 136,962 Transfer agent fees--Class C 90,232 Printing and shareholder reports 70,360 Professional fees 56,440 Registration fees 51,959 Pricing fees 38,332 Trustees' fees and expenses 36,657 Other 28,725 ------------ Total expenses 8,949,086 --------------- Investment income--net 37,804,389 --------------- Realized & Realized gain on investments--net 2,720,944 Unrealized Change in unrealized appreciation/depreciation 10,068,206 Gain on on investments--net Investments-- Net Increase in Net Assets Resulting from Operations $ 50,593,539 Net: =============== See Notes to Financial Statements. Merrill Lynch U.S. Government Mortgage Fund, February 28, 2002 FINANCIAL INFORMATION (continued) Statements of Changes in Net Assets For the Six For the Months Ended Year Ended February 28, 2002 August 31, 2001 Increase (Decrease) in Net Assets: Operations: Investment income--net $ 37,804,389 $ 77,114,923 Realized gain on investments--net 2,720,944 3,784,133 Change in unrealized appreciation/depreciation on investments--net 10,068,206 68,774,825 ---------------- --------------- Net increase in net assets resulting from operations 50,593,539 149,673,881 ---------------- --------------- Dividends to Investment income--net: Shareholders: Class A (6,252,475) (12,568,680) Class B (11,193,977) (21,183,948) Class C (2,209,653) (1,885,812) Class D (18,148,284) (41,476,483) ---------------- --------------- Net decrease in net assets resulting from dividends to shareholders (37,804,389) (77,114,923) ---------------- --------------- Beneficial Net increase in net assets derived from beneficial interest Interest transactions 242,005,717 65,775,375 Transactions: ---------------- --------------- Net Assets: Total increase in net assets 254,794,867 138,334,333 Beginning of period 1,487,203,826 1,348,869,493 ---------------- --------------- End of period $ 1,741,998,693 $1,487,203,826 ================ =============== See Notes to Financial Statements. Merrill Lynch U.S. Government Mortgage Fund, February 28, 2002 FINANCIAL INFORMATION (continued) Financial Highlights Class A The following per share data and ratios For the have been derived from information Six Months provided in the financial statements. Ended February 28, For the Year Ended August 31, Increase (Decrease) in Net Asset Value: 2002 2001 2000 1999 1998 Per Share Net asset value, beginning of period $ 9.95 $ 9.44 $ 9.37 $ 9.80 $ 9.64 Operating ------------- ---------- ------------ ---------- ----------- Performance: Investment income--net .25 .57 .58 .55 .60 Realized and unrealized gain (loss) on investments--net .08 .51 .07 (.43) .16 ------------- ---------- ------------ ---------- ----------- Total from investment operations .33 1.08 .65 .12 .76 ------------- ---------- ------------ ---------- ----------- Less dividends from investment income--net (.25) (.57) (.58) (.55) (.60) ------------- ---------- ------------ ---------- ----------- Net asset value, end of period $ 10.03 $ 9.95 $ 9.44 $ 9.37 $ 9.80 ============= ========== ============ ========== =========== Total Based on net asset value per share 3.39%++ 11.77% 7.23% 1.24% 8.10% Investment ============= ========== ============ ========== =========== Return:** Ratios to Expenses .72%* .75% .75% .70% .68% Average ============= ========== ============ ========== =========== Net Assets: Investment income--net 5.19%* 5.84% 6.23% 5.71% 6.18% ============= ========== ============ ========== =========== Supplemental Net assets, end of period Data: (in thousands) $ 256,345 $ 234,930 $ 192,119 $ 212,131 $ 277,568 ============= ========== ============ ========== =========== Portfolio turnover 145.78% 199.30% 37.28% 58.16% 301.88% ============= ========== ============ ========== =========== *Annualized. **Total investment returns exclude the effects of sales charges. ++Aggregate total investment return. See Notes to Financial Statements. Merrill Lynch U.S. Government Mortgage Fund, February 28, 2002 FINANCIAL INFORMATION (continued) Financial Highlights (continued) Class B The following per share data and ratios For the have been derived from information Six Months provided in the financial statements. Ended February 28, For the Year Ended August 31, Increase (Decrease) in Net Asset Value: 2002 2001 2000 1999 1998 Per Share Net asset value, beginning of period $ 9.95 $ 9.44 $ 9.36 $ 9.79 $ 9.63 Operating ------------- ---------- ------------ ---------- ----------- Performance: Investment income--net .22 .50 .51 .48 .53 Realized and unrealized gain (loss) on investments--net .08 .51 .08 (.43) .16 ------------- ---------- ------------ ---------- ----------- Total from investment operations .30 1.01 .59 .05 .69 ------------- ---------- ------------ ---------- ----------- Less dividends from investment income--net (.22) (.50) (.51) (.48) (.53) ------------- ---------- ------------ ---------- ----------- Net asset value, end of period $ 10.03 $ 9.95 $ 9.44 $ 9.36 $ 9.79 ============= ========== ============ ========== =========== Total Based on net asset value per share 3.00%++ 10.91% 6.53% .46% 7.28% Investment ============= ========== ============ ========== =========== Return:** Ratios to Expenses 1.48%* 1.52% 1.52% 1.46% 1.45% Average ============= ========== ============ ========== =========== Net Assets: Investment income--net 4.42%* 5.07% 5.47% 4.95% 5.42% ============= ========== ============ ========== =========== Supplemental Net assets, end of period Data: (in thousands) $ 546,596 $ 466,432 $ 405,846 $ 571,969 $ 627,818 ============= ========== ============ ========== =========== Portfolio turnover 145.78% 199.30% 37.28% 58.16% 301.88% ============= ========== ============ ========== =========== *Annualized. **Total investment returns exclude the effects of sales charges. ++Aggregate total investment return. See Notes to Financial Statements. Merrill Lynch U.S. Government Mortgage Fund, February 28, 2002 FINANCIAL INFORMATION (continued) Financial Highlights (continued) Class C The following per share data and ratios For the have been derived from information Six Months provided in the financial statements. Ended February 28, For the Year Ended August 31, Increase (Decrease) in Net Asset Value: 2002 2001 2000 1999 1998 Per Share Net asset value, beginning of period $ 9.95 $ 9.44 $ 9.36 $ 9.79 $ 9.63 Operating ------------- ---------- ------------ ---------- ----------- Performance: Investment income--net .21 .49 .51 .48 .52 Realized and unrealized gain (loss) on investments--net .08 .51 .08 (.43) .16 ------------- ---------- ------------ ---------- ----------- Total from investment operations .29 1.00 .59 .05 .68 ------------- ---------- ------------ ---------- ----------- Less dividends from investment income--net (.21) (.49) (.51) (.48) (.52) ------------- ---------- ------------ ---------- ----------- Net asset value, end of period $ 10.03 $ 9.95 $ 9.44 $ 9.36 $ 9.79 ------------- ---------- ------------ ---------- ----------- Total Based on net asset value per share 2.98%++ 10.86% 6.47% .41% 7.23% Investment ============= ========== ============ ========== =========== Return:** Ratios to Expenses 1.53%* 1.57% 1.57% 1.51% 1.51% Average ============= ========== ============ ========== =========== Net Assets: Investment income--net 4.32%* 5.00% 5.43% 4.90% 5.35% ============= ========== ============ ========== =========== Supplemental Net assets, end of period Data: (in thousands) $ 167,229 $ 56,706 $ 30,593 $ 46,614 $ 43,038 ============= ========== ============ ========== =========== Portfolio turnover 145.78% 199.30% 37.28% 58.16% 301.88% ============= ========== ============ ========== =========== *Annualized. **Total investment returns exclude the effects of sales charges. ++Aggregate total investment return. See Notes to Financial Statements. Merrill Lynch U.S. Government Mortgage Fund, February 28, 2002 FINANCIAL INFORMATION (concluded) Class D The following per share data and ratios For the have been derived from information Six Months provided in the financial statements. Ended February 28, For the Year Ended August 31, Increase (Decrease) in Net Asset Value: 2002 2001 2000 1999 1998 Per Share Net asset value, beginning of period $ 9.95 $ 9.44 $ 9.36 $ 9.79 $ 9.63 Operating ------------- ---------- ------------ ---------- ----------- Performance: Investment income--net .24 .55 .56 .53 .58 Realized and unrealized gain (loss) on investments--net .08 .51 .08 (.43) .16 ------------- ---------- ------------ ---------- ----------- Total from investment operations .32 1.06 .64 .10 .74 ------------- ---------- ------------ ---------- ----------- Less dividends from investment income--net (.24) (.55) (.56) (.53) (.58) ------------- ---------- ------------ ---------- ----------- Net asset value, end of period $ 10.03 $ 9.95 $ 9.44 $ 9.36 $ 9.79 ------------- ---------- ------------ ---------- ----------- Total Based on net asset value per share 3.26%++ 11.49% 7.08% .98% 7.84% Investment ============= ========== ============ ========== =========== Return:** Ratios to Expenses .97%* 1.00% 1.00% .95% .93% Average ============= ========== ============ ========== =========== Net Assets: Investment income--net 4.94%* 5.59% 5.99% 5.47% 5.94% ============= ========== ============ ========== =========== Supplemental Net assets, end of period Data: (in thousands) $ 771,829 $ 729,136 $ 720,311 $ 795,813 $ 866,013 ============= ========== ============ ========== =========== Portfolio turnover 145.78% 199.30% 37.28% 58.16% 301.88% ============= ========== ============ ========== =========== *Annualized. **Total investment returns exclude the effects of sales charges. ++Aggregate total investment return. See Notes to Financial Statements. Merrill Lynch U.S. Government Mortgage Fund, February 28, 2002 NOTES TO FINANCIAL STATEMENTS 1. Significant Accounting Policies: Merrill Lynch U.S. Government Mortgage Fund (the "Fund") is registered under the Investment Company Act of 1940 as a diversified, open-end management investment company. The Fund's financial statements are prepared in conformity with accounting principles generally accepted in the United States of America, which may require the use of management accruals and estimates. These unaudited financial statements reflect all adjustments, which are, in the opinion of management, necessary to a fair statement of the results for the interim period presented. All such adjustments are of a normal, recurring nature. The Fund offers four classes of shares under the Merrill Lynch Select Pricing SM System. Shares of Class A and Class D are sold with a front-end sales charge. Shares of Class B and Class C may be subject to a contingent deferred sales charge. All classes of shares have identical voting, dividend, liquidation and other rights and the same terms and conditions, except that Class B, Class C and Class D Shares bear certain expenses related to the account maintenance of such shares, and Class B and Class C Shares also bear certain expenses related to the distribution of such shares. Each class has exclusive voting rights with respect to matters relating to its account maintenance and distribution expenditures. Income, expenses (other than expenses attributable to a specific class) and realized and unrealized gains and losses on investments are allocated daily to each class based on its relative net assets. The following is a summary of significant accounting policies followed by the Fund. (a) Valuation of investments--Securities traded in the over-the-counter market are valued at the last available bid price in the over-the-counter market or on the basis of yield equivalents as obtained from one or more dealers that make markets in the securities. Options written or purchased are valued at the last sale price in the case of exchange-traded options. In the case of options traded in the over-the-counter market, valuation is the last asked price (options written) or the last bid price (options purchased). Financial futures contracts and options thereon, which are traded on exchanges, are valued at their last sale price as of the close of such exchanges. Securities with a remaining maturity of sixty days or less are valued on an amortized cost basis, which approximates market value. Securities and assets for which market quotations are not readily available are valued at fair value as determined in good faith by or under the direction of the Trustees of the Fund. (b) Repurchase agreements--The Fund invests in US Government securities pursuant to repurchase agreements. Under such agreements, the counterparty agrees to repurchase the security at a mutually agreed upon time and price. The Fund takes possession of the underlying securities, marks to market such securities and, if necessary, receives additional securities daily to ensure that the contract is fully collateralized. If the counterparty defaults and the fair value of the collateral declines, liquidation of the collateral by the Fund may be delayed or limited. (c) Derivative financial instruments--The Fund may engage in various portfolio investment strategies to increase or decrease the level of risk to which the Fund is exposed more quickly and efficiently than transactions in other types of instruments. Losses may arise due to changes in the value of the contract or if the counterparty does not perform under the contract. * Futures contracts--The Fund may purchase or sell financial futures contracts. Upon entering into a contract, the Fund deposits and maintains as collateral such initial margin as required by the exchange on which the transaction is effected. Pursuant to the contract, the Fund agrees to receive from or pay to the broker an amount of cash equal to the daily fluctuation in value of the contract. Such receipts or payments are known as variation margin and are recorded by the Fund as unrealized gains or losses. When the contract is closed, the Fund records a realized gain or loss equal to the difference between the value of the contract at the time it.was opened and the value at the time is was closed. * Options--The Fund is authorized to write and purchase call and put options. When the Fund writes an option, an amount equal to the premium received by the Fund is reflected as an asset and an equivalent liability. The amount of the liability is subsequently marked to market to reflect the current market value of the option written. When a security is purchased or sold through an exercise of an option, the related premium paid (or received) is added to (or deducted from) the basis of the security acquired or deducted from (or added to) the proceeds of the security sold. When an option expires (or the Fund enters into a closing transaction), the Fund realizes a gain or loss on the option to the extent of the premiums received or paid (or gain or loss to the extent the cost of the closing transaction exceeds the premiums paid or received). Merrill Lynch U.S. Government Mortgage Fund, February 28, 2002 NOTES TO FINANCIAL STATEMENTS (continued) Written and purchased options are non-income producing investments. (d) Income taxes--It is the Fund's policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute substantially all of its taxable income to its shareholders. Therefore, no Federal income tax provision is required. (e) Security transactions and investment income--Security transactions are recorded on the dates the transactions are entered into (the trade dates). Realized gains and losses on security transactions are determined on the identified cost basis. Dividend income is recorded on the ex-dividend dates. Interest income and extended delivery fees are recognized on the accrual basis. (f) Prepaid registration fees--Prepaid registration fees are charged to expense as the related shares are issued. (g) Dividends and distributions--Dividends from net investment income are declared daily and paid monthly. Distributions of capital gains are recorded on the ex-dividend dates. (h) Dollar rolls--The Fund sells mortgage-backed securities for delivery in the current month and simultaneously contracts to repurchase substantially similar (same type, coupon and maturity) securities on a specific future date. As of February 28, 2002, no dollar rolls were in effect. 2. Investment Advisory Agreement and Transactions with Affiliates: The Fund has entered into an Investment Advisory Agreement with Fund Asset Management, L.P. ("FAM"). The general partner of FAM is Princeton Services, Inc. ("PSI"), an indirect, wholly-owned subsidiary of Merrill Lynch & Co., Inc. ("ML & Co."), which is the limited partner. The Fund has also entered into a Distribution Agreement and Distribution Plans with FAM Distributors, Inc. ("FAMD" or the "Distributor"), which is a wholly-owned subsidiary of Merrill Lynch Group, Inc. FAM is responsible for the management of the Fund's portfolio and provides the necessary personnel, facilities, equipment and certain other services necessary to the operations of the Fund. For such services, the Fund pays a monthly fee based upon the average daily value of the Fund's net assets at the following rate: Portion of Average Daily Value of Net Assets: Rate Not exceeding $500 million .500% In excess of $500 million but not exceeding $1 billion .475% In excess of $1 billion but not exceeding $1.5 billion .450% In excess of $1.5 billion but not exceeding $2 billion .425% In excess of $2 billion but not exceeding $2.5 billion .400% In excess of $2.5 billion but not exceeding $3.5 billion .375% In excess of $3.5 billion but not exceeding $5 billion .350% In excess of $5 billion but not exceeding $6.5 billion .325% Exceeding $6.5 billion .300% Pursuant to the Distribution Plans adopted by the Fund in accordance with Rule 12b-1 under the Investment Company Act of 1940, the Fund pays the Distributor ongoing account maintenance and distribution fees. The fees are accrued daily and paid monthly at annual rates based upon the average daily net assets of the shares as follows: Account Distribution Maintenance Fee Fee Class B .25% .50% Class C .25% .55% Class D .25% -- Pursuant to a sub-agreement with the Distributor, Merrill Lynch, Pierce, Fenner & Smith Incorporated ("MLPF&S"), a subsidiary of ML & Co., also provides account maintenance and distribution services to the Fund. The ongoing account maintenance fee compensates the Distributor and MLPF&S for providing account maintenance services to Class B, Class C and Class D shareholders. The ongoing distribution fee compensates the Distributor and MLPF&S for providing shareholder and distribution-related services to Class B and Class C shareholders. Merrill Lynch U.S. Government Mortgage Fund, February 28, 2002 For the six months ended February 28, 2002, FAMD earned underwriting.discounts and direct commissions and MLPF&S earned dealer concessions on sales of the Fund's Class A and Class D Shares as follows: FAMD MLPF&S Class A $ 10 $ 85 Class D $ 15,605 $ 212,268 For the six months ended February 28, 2002, MLPF&S received contingent deferred sales charges of $286,792 and $23,525 relating to transactions in Class B and Class C Shares, respectively. Furthermore, MLPF&S received contingent deferred sales charges of $1,300 relating to transactions subject to front-end sales charge waivers in Class A Shares. Financial Data Services, Inc. ("FDS"), a wholly-owned subsidiary of ML & Co., is the Fund's transfer agent. For the six months ended February 28, 2002, the Fund paid Merrill Lynch Securities Pricing Service, an affiliate of MLPF&S, $17,648 for security price quotations to compute the net asset value of the Fund. For the six months ended February 28, 2002, the Fund reimbursed FAM $26,655 for certain accounting services. Certain officers and/or trustees of the Fund are officers and/or directors of FAM, PSI, FAMD, FDS, and/or ML & Co. 3. Investments: Purchases and sales of investments, excluding short-term securities, for the six months ended February 28, 2002 were $2,395,312,342 and $2,289,658,932, respectively. Net realized gains (losses) for the six months ended February 28, 2002 and net unrealized gains (losses) as of February 28, 2002 were as follows: Realized Unrealized Gains Gains (Losses) (Losses) Long-term investments $ 824,984 $ 37,468,479 Short-term investments (1,515) -- Options purchased (425,500) 8,722 Options written 425,781 (10,902) Financial futures contracts 1,897,194 -- ----------- ------------- Total $ 2,720,944 $ 37,466,299 =========== ============= As of February 28, 2002, net unrealized appreciation for Federal income tax purposes aggregated $37,466,299, of which $42,925,802 related to appreciated securities and $5,459,503 related to depreciated securities. The aggregate cost of investments, including options, at February 28, 2002 for Federal income tax purposes was $1,947,176,281. Transactions in options written for the six months ended February 28, 2002 were as follows: Nominal Value Covered by Premiums Put Options Written Options Received Outstanding put options written, beginning of period 15,602,752 $ -- Options expired (4,700,603) -- ------------ ------------- Outstanding put options written, end of period 10,902,149 $ -- ============ ============= Nominal Value Covered by Premiums Call Options Written Options Received Outstanding call options written, beginning of period 50,000,000 $ 425,781 Options exercised (50,000,000) (425,781) ------------ ------------- Outstanding call options written, end of period -- $ -- ============ ============= 4. Shares of Beneficial Interest: Net increase in net assets derived from beneficial interest transactions was $242,005,717 and $65,775,375 for the six months ended February 28, 2002 and for the year ended August 31, 2001, respectively. Merrill Lynch U.S. Government Mortgage Fund, February 28, 2002 NOTES TO FINANCIAL STATEMENTS (concluded) Transactions in shares of beneficial interest for each class were as follows: Class A Shares for the Six Months Dollar Ended February 28, 2002 Shares Amount Shares sold 8,399,713 $ 84,271,103 Shares issued to shareholders in reinvestment of dividends 71,168 711,029 ------------ ------------- Total issued 8,470,881 84,982,132 Shares redeemed (6,532,837) (65,492,971) ------------ ------------- Net increase 1,938,044 $ 19,489,161 ============ ============= Class A Shares for the Year Dollar Ended August 31, 2001 Shares Amount Shares sold 11,486,006 $ 112,213,653 Shares issued to shareholders in reinvestment of dividends 162,431 1,583,430 ------------ ------------- Total issued 11,648,437 113,797,083 Shares redeemed (8,390,750) (81,877,918) Net increase 3,257,687 $ 31,919,165 ============ ============= Class B Shares for the Six Months Dollar Ended February 28, 2002 Shares Amount Shares sold 16,448,881 $ 164,791,531 Shares issued to shareholders in reinvestment of dividends 712,321 7,112,467 ------------ ------------- Total issued 17,161,202 171,903,998 Automatic conversion of shares (2,160,779) (21,688,189) Shares redeemed (7,400,014) (74,006,375) ------------ ------------- Net increase 7,600,409 $ 76,209,434 ============ ============= Class B Shares for the Year Dollar Ended August 31, 2001 Shares Amount Shares sold 18,912,495 $ 185,104,145 Shares issued to shareholders in reinvestment of dividends 1,163,858 11,346,482 ------------ ------------- Total issued 20,076,353 196,450,627 Automatic conversion of shares (3,369,741) (32,877,221) Shares redeemed (12,822,475) (124,664,599) ------------ ------------- Net increase 3,884,137 $ 38,908,807 ============ ============= Class C Shares for the Six Months Dollar Ended February 28, 2002 Shares Amount Shares sold 12,613,154 $ 126,324,018 Shares issued to shareholders in reinvestment of dividends 141,132 1,408,506 ------------ ------------- Total issued 12,754,286 127,732,524 Shares redeemed (1,783,178) (17,800,402) ------------ ------------- Net increase 10,971,108 $ 109,932,122 ============ ============= Class C Shares for the Year Dollar Ended August 31, 2001 Shares Amount Shares sold 3,629,627 $ 35,584,338 Shares issued to shareholders in reinvestment of dividends 125,177 1,221,385 ------------ ------------- Total issued 3,754,804 36,805,723 Shares redeemed (1,296,164) (12,624,766) ------------ ------------- Net increase 2,458,640 $ 24,180,957 ============ ============= Class D Shares for the Six Months Dollar Ended February 28, 2002 Shares Amount Shares sold 8,923,932 $ 89,093,655 Automatic conversion of shares 2,160,779 21,688,189 Shares issued to shareholders in reinvestment of dividends 754,435 7,534,022 ------------ ------------- Total issued 11,839,146 118,315,866 Shares redeemed (8,189,399) (81,940,866) ------------ ------------- Net increase 3,649,747 $ 36,375,000 ============ ============= Class D Shares for the Year Dollar Ended August 31, 2001 Shares Amount Shares sold 13,133,960 $ 128,224,313 Automatic conversion of shares 3,369,741 32,877,221 Shares issued to shareholders in reinvestment of dividends 1,847,720 17,998,322 ------------ ------------- Total issued 18,351,421 179,099,856 Shares redeemed (21,381,997) (208,333,410) ------------ ------------- Net decrease (3,030,576) $(29,233,554) ============ ============= Merrill Lynch U.S. Government Mortgage Fund, February 28, 2002 5. Short-Term Borrowings: The Fund, along with certain other funds managed by FAM and its affiliates, is a party to a $1,000,000,000 credit agreement with Bank One, N.A. and certain other lenders. The Fund may borrow under the credit agreement to fund shareholder redemptions and for other lawful purposes other than for leverage. The Fund may borrow up to the maximum amount allowable under the Fund's current prospectus and statement of additional information, subject to various other legal, regulatory or contractual limits. The Fund pays a commitment fee of .09% per annum based on the Fund's pro rata share of the unused portion of the credit agreement. Amounts borrowed under the credit agreement bear interest at a rate equal to, at each fund's election, the Federal Funds rate plus .50% or a base rate as determined by Bank One, N.A. On November 30, 2001, the credit agreement was renewed for one year under the same terms. The Fund did not borrow under the credit agreement during the six months ended February 28, 2002. 6. Capital Loss Carryforward: At August 31, 2001, the Fund had a net capital loss carryforward of approximately $200,903,000, of which $175,708,000 expires in 2003, $16,733,000 expires in 2004, $4,697,000 expires in 2008 and $3,765,000 expires in 2009. This amount will be available to offset like amounts of any future taxable gains. OFFICERS AND TRUSTEES Terry K. Glenn, President and Trustee Joe Grills, Trustee Robert S. Salomon Jr., Trustee Melvin R. Seiden, Trustee Stephen B. Swensrud, Trustee Jeffrey B. Hewson, Vice President Donald C. Burke, Vice President and Treasurer Phillip S. Gillespie, Secretary Walter Mintz, Trustee of Merrill Lynch U.S. Government Mortgage Fund, has recently retired. The Fund's Board of Trustees wishes Mr. Mintz well in his retirement. Custodian The Bank of New York 90 Washington Street, 12th Floor New York, NY 10286 Transfer Agent Financial Data Services, Inc. 4800 Deer Lake Drive East Jacksonville, FL 32246-6484 (800) 637-3863