497 1 a2059286z497.txt 497 MUTUAL FUND TRUST SUPPLEMENT DATED SEPTEMBER 14, 2001, TO THE PROSPECTUSES DATED SEPTEMBER 7, 2001 FOR THE FOLLOWING FUNDS: JPMORGAN PRIME MONEY MARKET FUND JPMORGAN TAX FREE MONEY MARKET FUND JPMORGAN FEDERAL MONEY MARKET FUND JPMORGAN TREASURY PLUS MONEY MARKET FUND JPMORGAN U.S. GOVERNMENT MONEY MARKET FUND JPMORGAN 100% U.S. TREASURY SECURITIES MONEY MARKET FUND JPMORGAN CALIFORNIA TAX FREE MONEY MARKET FUND JPMORGAN NEW YORK TAX FREE MONEY MARKET FUND The following information is hereby added under the sub-section "Buying Fund Shares" of the section entitled "How Your Account Works": The Funds also may be open for business on days the New York Stock Exchange is closed, if banking institutions are open. SUP-MM-901