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<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .20
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial data extracted from the semi-annual
report dated May 31, 1998 for the J.P. Morgan Institutional Service Prime Money
Market Fund and is qualified in its entirety by reference to such semi-annual
report.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> NOV-30-1997
<PERIOD-END> MAY-31-1998
<INVESTMENTS-AT-COST> 0
<INVESTMENTS-AT-VALUE> 608,608
<RECEIVABLES> 57
<ASSETS-OTHER> 9
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 608,674
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2,500
<TOTAL-LIABILITIES> 2,500
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 606,176
<SHARES-COMMON-STOCK> 606,176
<SHARES-COMMON-PRIOR> 384
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (2)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 606,174
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 5,178
<OTHER-INCOME> 0
<EXPENSES-NET> 263
<NET-INVESTMENT-INCOME> 4,915
<REALIZED-GAINS-CURRENT> (1)
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 4,914
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 4,915
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1,114,425
<NUMBER-OF-SHARES-REDEEMED> 508,716
<SHARES-REINVESTED> 82
<NET-CHANGE-IN-ASSETS> 605,790
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 360
<AVERAGE-NET-ASSETS> 187,863
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .027
<PER-SHARE-GAIN-APPREC> .000
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> .027
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .45
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
