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: 811-05987 Morgan Stanley New York Municipal Money Market Trust (Exact name of registrant as specified in charter) 1221 Avenue of the Americas, New York, New York 10020 (Address of principal executive offices) (Zip code) Ronald E. Robison 1221 Avenue of the Americas, New York, New York 10020 (Name and address of agent for service) Registrant's telephone number, including area code: 212-762-4000 Date of fiscal year end: December 31, 2004 Date of reporting period: June 30, 2004 Item 1 - Report to Shareholders Welcome, Shareholder: In this report, you'll learn about how your investment in Morgan Stanley New York Municipal Money Market Trust performed during the semiannual period. We will provide an overview of the market conditions, and discuss some of the factors that affected performance during the reporting period. In addition, this report includes the Fund's financial statements and a list of Fund investments. This material must be preceded or accompanied by a prospectus for the fund being offered. Market forecasts provided in this report may not necessarily come to pass. There is no assurance that the Fund will achieve its investment objective. The Fund is subject to market risk, which is the possibility that market values of securities owned by the Fund will decline and, therefore, the value of the Fund's shares may be less than what you paid for them. Accordingly, you can lose money investing in this Fund. FUND REPORT For the six-month period ended June 30, 2004 MARKET CONDITIONS Perhaps the most significant event of the six-month review period happened on its final day. On June 30, 2004, the Federal Open Market Committee (the "Fed") raised the federal funds rate target by 25 basis points, to 1.25 percent. Prior to that, the target rate had been at a multidecade low for a full year. Indeed, rates across the money market yield curve had steadily trended lower for several years. The Fed's change had been widely anticipated; at the end of the period the market reflected investors' general expectation that rates would rise still further in the coming months as a result of mounting inflationary pressures. The municipal money markets for the period were largely mixed. At the outset of the period, the U.S. economy remained weak and state governments were facing severe budgetary difficulties. Across the board, municipalities sought ways to reduce expenditures and boost revenue through a variety of tactics, including new fees and taxes, refinancing of existing debt and, in some instances, borrowing to fund deficits. The economic and investment environment both showed marked improvement in the spring of 2004, when continued growth in employment and corporate profits alike resulted in improving outlooks for municipal tax revenues. The money market yield curve -- the difference between short- and longer-term yields -- steepened significantly over the first six months of 2004, reflecting the market's expectation of further strength in the U.S. economy. PERFORMANCE ANALYSIS As of June 30, 2004, Morgan Stanley New York Municipal Money Market Trust had net assets of more than $62 million and an average portfolio maturity of 37 days. For the six-month period ended June 30, 2004, the Fund provided a total return of 0.12 percent. For the seven-day period ended June 30, 2004, the Fund provided an effective annualized yield and a current yield both of 0.53 percent, while its 30-day moving average yield for June was 0.52 percent. Past performance is no guarantee of future results. We were largely cautious in managing the Fund's portfolio during the period, preferring to avoid the one-year segment of the money market in anticipation of further yield increases there. As a result, the Fund's portfolio ended the period with a weighted average maturity somewhat lower than has historically been the case at this point in the year. We chose to emphasize short-term variable-rate paper and shorter maturities of tax-exempt commercial paper in order to minimize the potential adverse effects of rising interest rates. Given the budgetary challenges facing the state of New York, we remained highly cautious in our security selection over the course of the review period. 2 <Table> <Caption> PORTFOLIO COMPOSITION Variable Rate Municipal Obligations 83.6% Municipal Notes 8.4 Tax-Exempt Commercial Paper 8.0 </Table> <Table> <Caption> MATURITY SCHEDULE 1-30 Days 80.8% 31-60 Days - 61-90 Days 6.4 91-120 Days 4.8 121+ Days 8.0 </Table> Data as of June 30, 2004. Subject to change daily. All percentages for Portfolio Composition and Maturity Schedule are as a percentage of total investments. Provided for informational purposes only and should not be deemed a recommendation to buy or sell the securities mentioned. Morgan Stanley is a full-service securities firm engaged in securities trading and brokerage activities, investment banking, research and analysis, financing and financial advisory services. INVESTMENT STRATEGY THE FUND WILL INVEST IN HIGH QUALITY, SHORT-TERM SECURITIES THAT ARE NORMALLY MUNICIPAL OBLIGATIONS THAT PAY INTEREST EXEMPT FROM FEDERAL AND NEW YORK INCOME TAXES. THE FUND'S "INVESTMENT MANAGER," MORGAN STANLEY INVESTMENT ADVISORS INC., SEEKS TO MAINTAIN THE FUND'S SHARE PRICE AT $1.00. THE SHARE PRICE REMAINING STABLE AT $1.00 MEANS THAT THE FUND WOULD PRESERVE THE PRINCIPAL VALUE OF YOUR INVESTMENT. AN INVESTMENT IN THE FUND IS NOT INSURED OR GUARANTEED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION OR ANY OTHER GOVERNMENT AGENCY. ALTHOUGH THE FUND SEEKS TO PRESERVE THE VALUE OF YOUR INVESTMENT AT $1.00 PER SHARE, IT IS POSSIBLE TO LOSE MONEY BY INVESTING IN THE FUND. 3 Morgan Stanley New York Municipal Money Market Trust PORTFOLIO OF INVESTMENTS - JUNE 30, 2004 (UNAUDITED) <Table> <Caption> PRINCIPAL AMOUNT IN COUPON DEMAND THOUSANDS RATE+ DATE* VALUE - --------------------------------------------------------------------------------------------------------- New York Tax-Exempt Short-Term Variable Rate Municipal Obligations (83.9%) Jay Street Development Corporation, $1,000 Fiscal 2001 Ser A-1...................................... 1.00% 07/08/04 $ 1,000,000 1,600 Fiscal 2001 Ser A-3...................................... 1.07 07/08/04 1,600,000 1,900 Long Island Power Authority, Electric Ser 7 Subser 7B (MBIA)................................................... 1.00 07/08/04 1,900,000 1,500 Long Island Power Authority, Electric System Subser 1B..... 1.08 07/01/04 1,500,000 1,495 Metropolitan Transportation Authority, ROCs II-R Ser 263 (FSA).................................................... 1.10 07/08/04 1,495,000 2,000 Nassau County Industrial Development Agency, 1999 Cold Spring Harbor Laboratory................................. 1.08 07/01/04 2,000,000 1,900 Nassau County Interim Finance Authority, Sales Tax Ser 2002 B (FSA).................................................. 1.00 07/08/04 1,900,000 1,600 New York City, Fiscal 1994 Ser H Subser H-3 (FSA).......... 1.03 07/01/04 1,600,000 2,000 New York City Housing Development Corporation, James Tower Development 2002 Ser A................................... 1.00 07/08/04 2,000,000 New York City Municipal Water Finance Authority, 1,800 1994 Ser C (FGIC)........................................ 1.06 07/01/04 1,800,000 840 PUTTERs Ser 401.......................................... 1.09 07/08/04 840,000 New York City Transitional Finance Authority, 1,300 Recovery Fiscal 2003 Ser 1 Subser 1D..................... 1.08 07/01/04 1,300,000 1,200 Recovery Fiscal 2003 Ser 3 Subser 3E..................... 1.08 07/01/04 1,200,000 1,500 New York State, Ser 2000 A................................. 1.05 10/07/04 1,500,000 New York State Dormitory Authority, 1,000 Cornell University Ser 1990 B............................ 1.08 07/01/04 1,000,000 2,000 Mental Health Services Facilities Ser 2003D-2D (Ambac)... 1.07 07/08/04 2,000,000 750 The Metropolitan Museum of Art Ser A..................... 1.01 07/08/04 750,000 1,500 The New York Public Library Ser 1998 B (MBIA)............ 1.00 07/08/04 1,500,000 3,000 New York State Energy Research & Development Authority, Long Island Lighting Co Ser 1997 A (AMT)................. 1.06 07/08/04 3,000,000 1,500 New York State Environmental Quality Ser 1998 G............ 1.03 10/01/04 1,500,000 New York State Housing Finance Agency, 3,000 150 East 44th Street 2000 Ser A (AMT).................... 1.08 07/08/04 3,000,000 3,200 750 Sixth Avenue 1998 Ser A (AMT)........................ 1.06 07/08/04 3,200,000 2,500 Historic Front Street 2003 Ser A......................... 1.05 07/08/04 2,500,000 1,500 New York State Local Government Assistance Corporation, Sub Lien Ser 2003 A-7V (FGIC)................................ 1.00 07/08/04 1,500,000 1,500 New York State Power Authority, Ser 1985................... 0.95 09/01/04 1,500,000 3,000 Oneida Indian Nation of New York, Ser 2002................. 1.03 07/08/04 3,000,000 1,800 Suffolk County Water Authority, Ser 2003 BANs.............. 1.07 07/08/04 1,800,000 2,500 Triborough Bridge & Tunnel Authority, Ser 2002 F........... 1.06 07/08/04 2,500,000 1,000 Yonkers Industrial Development Agency, Consumers Union Ser 1989..................................................... 1.05 07/08/04 1,000,000 </Table> 4 See Notes to Financial Statements Morgan Stanley New York Municipal Money Market Trust PORTFOLIO OF INVESTMENTS - JUNE 30, 2004 (UNAUDITED) continued <Table> <Caption> PRINCIPAL AMOUNT IN COUPON DEMAND THOUSANDS RATE+ DATE* VALUE - --------------------------------------------------------------------------------------------------------- Puerto Rico, $1,000 Commonwealth of Puerto Rico Public Improvement Bonds, Ser 2001-1 TOCs (FSA)........................................ 1.35% 12/02/04 $ 1,000,000 ----------- Total New York Tax-Exempt Short-Term Variable Rate Municipal Obligations (Cost $52,385,000).................................................................. 52,385,000 ----------- </Table> <Table> <Caption> YIELD TO MATURITY COUPON MATURITY ON DATE OF RATE DATE PURCHASE ------ -------- ---------- New York Tax-Exempt Commercial Paper (8.0%) 1,000 New York State, Environmental Quality Ser 1997 A........................................... 0.95% 07/20/04 0.95% 1,000,000 1,500 New York State Dormitory Authority, Columbia University 1997 Issue....................... 1.08 07/28/04 1.08 1,500,000 Puerto Rico Puerto Rico Government Development Bank, 1,000 Ser 1986.................................... 1.12 09/09/04 1.12 1,000,000 1,500 Ser 1986.................................... 1.15 09/14/04 1.15 1,500,000 ----------- Total New York Tax-Exempt Commercial Paper (Cost $5,000,000)............................................................. 5,000,000 ----------- New York Tax-Exempt Short-Term Municipal Notes (8.5%) 250 Islip, Public Improvement Ser 1995 (FGIC), dtd 07/15/95.................................... 5.00 07/15/04 1.00 250,381 1,500 Oyster Bay, 2004 Ser A TANs, dtd 01/23/04..... 1.90 01/21/05 1.10 1,506,607 1,000 Spencer-Van Etten Central School District, Ser 2004 BANs, dtd 06/17/04..................... 3.00 06/17/05 1.88 1,010,616 1,500 Steuben-Allegany Board of Cooperative Services, Sole Supervisory District RANs Ser 2004, dtd 06/29/04.......................... 3.00 06/30/05 1.78 1,517,921 Puerto Rico 1,000 Puerto Rico, Ser 2004 TRANs, dtd 10/15/03..... 2.00 07/30/04 1.00 1,000,788 ----------- Total New York Tax-Exempt Short-Term Municipal Notes (Cost $5,286,313)............................................................. 5,286,313 ----------- </Table> 5 See Notes to Financial Statements Morgan Stanley New York Municipal Money Market Trust PORTFOLIO OF INVESTMENTS - JUNE 30, 2004 (UNAUDITED) continued <Table> <Caption> VALUE - --------------------------------------------------------------------------------------------------------- Total Investments (Cost $62,671,313) (a)............................................ 100.4% $62,671,313 Liabilities in Excess of Other Assets............................. (0.4) (245,669) ----- ----------- Net Assets........................................................ 100.0% $62,425,644 ===== =========== </Table> - --------------------- <Table> AMT Alternative Minimum Tax. BANs Bond Anticipation Notes. PUTTERs Puttable Tax-Exempt Receipts. RANs Revenue Anticipation Notes. ROCs Reset Option Certificates. TANs Tax Anticipation Notes. TOCs Tender Option Certificates. TRANs Tax and Revenue Anticipation Notes. + Rate shown is the rate in effect at June 30, 2004. * Date on which the principal amount can be recovered through demand. (a) Cost is the same for federal income tax purposes. Bond Insurance: - --------------- Ambac Ambac Assurance Corporation. FSA Financial Security Assurance Inc. FGIC Financial Guaranty Insurance Company. MBIA Municipal Bond Investors Assurance Corporation. </Table> 6 See Notes to Financial Statements Morgan Stanley New York Municipal Money Market Trust FINANCIAL STATEMENTS Statement of Assets and Liabilities June 30, 2004 (unaudited) <Table> Assets: Investments in securities, at value (cost $62,671,313)........................................ $62,671,313 Cash........................................................ 74,434 Interest receivable......................................... 116,392 Prepaid expenses and other assets........................... 29,813 ----------- Total Assets............................................ 62,891,952 ----------- Liabilities: Payable for: Shares of beneficial interest redeemed.................. 360,000 Investment management fee............................... 11,296 Distribution fee........................................ 5,730 Accrued expenses and other payables......................... 89,282 ----------- Total Liabilities....................................... 466,308 ----------- Net Assets.............................................. $62,425,644 =========== Composition of Net Assets: Paid-in-capital............................................. $62,425,091 Accumulated undistributed net investment income............. 553 ----------- Net Assets.............................................. $62,425,644 =========== Net Asset Value Per Share, 62,425,618 shares outstanding (unlimited shares authorized of $.01 par value).......................................... $1.00 =========== </Table> 7 See Notes to Financial Statements Morgan Stanley New York Municipal Money Market Trust FINANCIAL STATEMENTS continued Statement of Operations For the six months ended June 30, 2004 (unaudited) <Table> Net Investment Income: Interest Income............................................. $327,511 -------- Expenses Investment management fee................................... 165,611 Professional fees........................................... 39,930 Distribution fee............................................ 33,122 Transfer agent fees and expenses............................ 17,243 Shareholder reports and notices............................. 15,499 Trustees' fees and expenses................................. 3,916 Custodian fees.............................................. 3,363 Registration fees........................................... 2,990 Other....................................................... 2,475 -------- Total Expenses.......................................... 284,149 Less: amounts waived........................................ (31,824) Less: expense offset........................................ (3,150) -------- Net Expenses............................................ 249,175 -------- Net Investment Income....................................... $ 78,336 ======== </Table> 8 See Notes to Financial Statements Morgan Stanley New York Municipal Money Market Trust FINANCIAL STATEMENTS continued Statement of Changes in Net Assets <Table> <Caption> FOR THE SIX FOR THE YEAR MONTHS ENDED ENDED JUNE 30, 2004 DECEMBER 31, 2003 ------------- ----------------- (unaudited) Increase (Decrease) in Net Assets: Operations: Net investment income....................................... $ 78,336 $ 197,460 Dividends to shareholders from net investment income........ (78,376) (197,469) Net decrease from transactions in shares of beneficial interest.................................................. (5,660,298) (15,398,751) ----------- ------------ Net Decrease............................................ (5,660,338) (15,398,760) Net Assets: Beginning of period......................................... 68,085,982 83,484,742 ----------- ------------ End of Period (Including accumulated undistributed net investment income of $553 and $593, respectively)............................. $62,425,644 $ 68,085,982 =========== ============ </Table> 9 See Notes to Financial Statements Morgan Stanley New York Municipal Money Market Trust NOTES TO FINANCIAL STATEMENTS - JUNE 30, 2004 (UNAUDITED) 1. Organization and Accounting Policies Morgan Stanley New York Municipal Money Market Trust (the "Fund") is registered under the Investment Company Act of 1940, as amended (the "Act"), as a non-diversified, open-end management investment company. The Fund's investment objective is to provide a high level of daily income which is exempt from federal and New York income tax, consistent with stability of principal and liquidity. The Fund was organized as a Massachusetts business trust on December 28, 1989 and commenced operations on March 20, 1990. The following is a summary of significant accounting policies: A. Valuation of Investments -- Portfolio securities are valued at amortized cost, which approximates market value. B. Accounting for Investments -- Security transactions are accounted for on the trade date (date the order to buy or sell is executed). Realized gains and losses on security transactions are determined by the identified cost method. Discounts are accreted and premiums are amortized over the life of the respective securities. Interest income is accrued daily. C. Federal Income Tax Policy -- 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 and nontaxable income to its shareholders. Accordingly, no federal income tax provision is required. D. Dividends and Distributions to Shareholders -- The Fund records dividends and distributions to shareholders as of the close of each business day. E. Use of Estimates -- The preparation of financial statements in accordance with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts and disclosures. Actual results could differ from those estimates. 2. Investment Management Agreement Pursuant to an Investment Management Agreement with Morgan Stanley Investment Advisors Inc. (the "Investment Manager"), the Fund pays the Investment Manager a management fee, accrued daily and payable monthly, by applying the following annual rates to the net assets of the Fund determined as of the close of each business day: 0.50% to the portion of the daily net assets not exceeding $500 million; 0.425% to the portion of the daily net assets exceeding $500 million but not exceeding $750 million; 0.375% to the portion of the daily net assets exceeding $750 million but not exceeding $1 billion; 0.35% to the portion of the daily net assets exceeding $1 billion but not exceeding $1.5 billion; 0.325% to the portion of the daily net assets exceeding $1.5 billion but not 10 Morgan Stanley New York Municipal Money Market Trust NOTES TO FINANCIAL STATEMENTS - JUNE 30, 2004 (UNAUDITED) continued exceeding $2 billion; 0.30% to the portion of the daily net assets exceeding $2 billion but not exceeding $2.5 billion; 0.275% to the portion of the daily net assets exceeding $2.5 billion but not exceeding $3 billion; and 0.25% to the portion of daily net assets exceeding $3 billion. Effective May 1, 2004, the Investment Manager has agreed to assume all operating expenses and to waive the compensation provided for in its Investment Management Agreement to the extent that such expenses and compensation on an annualized basis exceed 0.60% of the daily net assets of the Fund. For the period January 1, 2004 through April 30, 2004, the Investment Manager voluntarily waived $1,199 of its fee. 3. Plan of Distribution Morgan Stanley Distributors Inc. (the "Distributor"), an affiliate of the Investment Manager, is the distributor of the Fund's shares and in accordance with a Plan of Distribution (the "Plan") pursuant to Rule 12b-1 under the Act, finances certain expenses in connection with the promotion of sales of Fund shares. Reimbursements for these expenses are made in monthly payments by the Fund to the Distributor, which will in no event exceed an amount equal to a payment at the annual rate of 0.15% of the Fund's average daily net assets during the month. Expenses incurred by the Distributor pursuant to the Plan in any fiscal year will not be reimbursed by the Fund through payments accrued in any subsequent fiscal year. For the six months ended June 30, 2004, the distribution fee was accrued at the annual rate of 0.10%. 4. Security Transactions and Transactions with Affiliates The cost of purchases and proceeds from sales/maturities of portfolio securities for the six months ended June 30, 2004, aggregated $85,626,200 and $91,545,000, respectively. Morgan Stanley Trust, an affiliate of the Investment Manager and Distributor, is the Fund's transfer agent. At June 30, 2004, the Fund had transfer agent fees and expenses payable of approximately $660. The Fund has an unfunded noncontributory defined benefit pension plan covering certain independent Trustees of the Fund who will have served as independent Trustees for at least five years at the time of retirement. Benefits under this plan are based on factors which include years of service and compensation. Aggregate pension costs for the six months ended June 30, 2004, included in Trustees' fees and expenses in the Statement of Operations amounted to $3,479. At June 30, 11 Morgan Stanley New York Municipal Money Market Trust NOTES TO FINANCIAL STATEMENTS - JUNE 30, 2004 (UNAUDITED) continued 2004, the Fund had an accrued pension liability of $57,287 which is included in accrued expenses in the Statement of Assets and Liabilities. On December 2, 2003, the Trustees voted to close the plan to new participants and eliminate the future benefits growth due to increases to compensation after July 31, 2003. Effective April 1, 2004, the Fund began an unfunded Deferred Compensation Plan (the "Compensation Plan") which allows each independent Trustee to defer payment of all, or a portion, of the fees he receives for serving on the Board of Trustees. Each eligible Trustee generally may elect to have the deferred amounts credited with a return equal to the total return on one or more of the Morgan Stanley funds that are offered as investment options under the Compensation Plan. Appreciation/depreciation and distributions received from these investments are recorded with an offsetting increase/decrease in the deferred compensation obligation and do not affect the net asset value of the Fund. 5. Shares of Beneficial Interest Transactions in shares of beneficial interest, at $1.00 per share, were as follows: <Table> <Caption> FOR THE SIX FOR THE MONTHS ENDED YEAR ENDED JUNE 30, 2004 DECEMBER 31, 2003 ------------- ----------------- (unaudited) Shares sold................................................. 55,970,693 165,036,737 Shares issued in reinvestment of dividends.................. 78,376 197,469 ----------- ------------ 56,049,069 165,234,206 Shares redeemed............................................. (61,709,367) (180,632,957) ----------- ------------ Net decrease in shares outstanding.......................... (5,660,298) (15,398,751) =========== ============ </Table> 6. Expense Offset The expense offset represents a reduction of the custodian fees for earnings on cash balances maintained by the Fund. 7. Legal Matter The Investment Manager, certain affiliates of the Investment Manager, certain officers of such affiliates and certain investment companies advised by the Investment Manager or its affiliates, including the Fund, are named as defendants in a number of similar class action complaints which were recently consolidated. This consolidated action also names as defendants certain individual Trustees and Directors of the Morgan Stanley funds. The consolidated amended complaint generally alleges that defendants, including the Fund, violated their statutory disclosure obligations and 12 Morgan Stanley New York Municipal Money Market Trust NOTES TO FINANCIAL STATEMENTS - JUNE 30, 2004 (UNAUDITED) continued fiduciary duties by failing properly to disclose (i) that the Investment Manager and certain affiliates of the Investment Manager allegedly offered economic incentives to brokers and others to recommend the funds advised by the Investment Manager or its affiliates to investors rather than funds managed by other companies, and (ii) that the funds advised by the Investment Manager or its affiliates, including the Fund, allegedly paid excessive commissions to brokers in return for their efforts to recommend these funds to investors. The complaint seeks, among other things, unspecified compensatory damages, rescissionary damages, fees and costs. The defendants have moved to dismiss the action and intend to otherwise vigorously defend it. While the Fund believes that it has meritorious defenses, the ultimate outcome of this matter is not presently determinable at this early stage of the litigation, and no provision has been made in the Fund's financial statements for the effect, if any, of this matter. 13 Morgan Stanley New York Municipal Money Market Trust FINANCIAL HIGHLIGHTS Selected ratios and per share data for a share of beneficial interest outstanding throughout each period: <Table> <Caption> FOR THE SIX FOR THE YEAR ENDED DECEMBER 31, MONTHS ENDED ---------------------------------------------------------------- JUNE 30, 2004 2003 2002 2001 2000 1999 ------------- -------- -------- -------- -------- -------- (unaudited) Selected Per Share Data: Net asset value, beginning of period..... $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 ------ ------ ------ ------ ------ ------- Net income from investment operations.... 0.001 0.003 0.006 0.019 0.031 0.023 Less dividends from net investment income.................................. (0.001) (0.003) (0.006) (0.019) (0.031) (0.023) ------ ------ ------ ------ ------ ------- Net asset value, end of period........... $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 $ 1.00 ====== ====== ====== ====== ====== ======= Total Return............................. 0.12%(1) 0.27% 0.64% 1.90% 3.15% 2.29% Ratios to Average Net Assets: Expenses (before expense offset)......... 0.76%(2)(3)(4) 0.79%(3)(4) 0.80%(3) 0.78%(3) 0.82%(3) 0.88%(3) Net investment income.................... 0.24%(2)(4) 0.27%(4) 0.63% 1.90% 3.12% 2.25% Supplemental Data: Net assets, end of period, in thousands............................... $62,426 $68,086 $83,485 $75,240 $73,250 $62,009 </Table> - --------------------- <Table> (1) Not annualized. (2) Annualized. (3) Does not reflect the effect of the expense offset of 0.01%. (4) If the Investment Manager had not waived a portion of its fee, the annualized expense and net investment income ratios would have been as follows: EXPENSE NET INVESTMENT PERIOD ENDED: RATIO INCOME RATIO ----------------- ---- ---- June 30, 2004 0.86% 0.14% December 31, 2003 0.80 0.26 </Table> 14 See Notes to Financial Statements (This Page Intentionally Left Blank) TRUSTEES Michael Bozic Charles A. Fiumefreddo Edwin J. Garn Wayne E. Hedien James F. Higgins Dr. Manuel H. Johnson Joseph J. Kearns Michael E. Nugent Fergus Reid OFFICERS Charles A. Fiumefreddo Chairman of the Board Mitchell M. Merin President Ronald E. Robison Executive Vice President and Principal Executive Officer Barry Fink Vice President Joseph J. McAlinden Vice President Stefanie V. Chang Vice President Francis J. Smith Treasurer and Chief Financial Officer Thomas F. Caloia Vice President Mary E. Mullin Secretary TRANSFER AGENT Morgan Stanley Trust Harborside Financial Center, Plaza Two Jersey City, New Jersey 07311 INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Deloitte & Touche LLP Two World Financial Center New York, New York 10281 INVESTMENT MANAGER Morgan Stanley Investment Advisors Inc. 1221 Avenue of the Americas New York, New York 10020 The financial statements included herein have been taken from the records of the Fund without examination by the independent auditors and accordingly they do not express an opinion thereon. This report is submitted for the general information of shareholders of the Fund. For more detailed information about the Fund, its fees and expenses and other pertinent information, please read its Prospectus. The Fund's Statement of Additional Information contains additional information about the Fund, including its trustees. It is available, without charge, by calling (800) 869-NEWS. This report is not authorized for distribution to prospective investors in the Fund unless preceded or accompanied by an effective Prospectus. Read the Prospectus carefully before investing. Investments and services offered through Morgan Stanley DW Inc., member SIPC. Morgan Stanley Distributors Inc., member NASD. (c) 2004 Morgan Stanley [MORGAN STANLEY LOGO] MORGAN STANLEY FUNDS Morgan Stanley New York Municipal Money Market Trust Semiannual Report June 30, 2004 [MORGAN STANLEY LOGO] 37906RPT-RA04-00482P-Y06/04 Item 2. Code of Ethics. Not applicable for semiannual reports. Item 3. Audit Committee Financial Expert. Not applicable for semiannual reports. Item 4. Principal Accountant Fees and Services Not applicable for semiannual reports. Item 5. Audit Committee of Listed Registrants. Not applicable for semiannual reports. Item 6. [Reserved.] Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies. Not applicable for semiannual reports. Item 8. [Reserved.] Item 9 - Controls and Procedures (a) The Fund's principal executive officer and principal financial officer have concluded that the Fund's disclosure controls and procedures are sufficient to ensure that information required to be disclosed by the Fund in this Form N-CSR was recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms, based upon such officers' evaluation of these controls and procedures as of a date within 90 days of the filing date of the report. There were no significant changes or corrective actions with regard to significant deficiencies or material weaknesses in the Fund's internal controls or in other factors that could significantly affect the Fund's internal controls subsequent to the date of their evaluation. (b) There were no changes in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal half-year (the registrant's second fiscal half-year in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting. Item 10 Exhibits (a) Code of Ethics - Not applicable for semiannual reports. (b) A separate certification for each principal executive officer and principal financial officer of the registrant are attached hereto as part of EX-99.CERT. 2 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. Morgan Stanley New York Municipal Money Market Trust /s/ Ronald E. Robison Ronald E. Robison Principal Executive Officer August 19, 2004 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed by the following persons on behalf of the registrant and in the capacities and on the dates indicated. /s/ Ronald E. Robison Ronald E. Robison Principal Executive Officer August 19, 2004 /s/ Francis Smith Francis Smith Principal Financial Officer August 19, 2004 3