<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000316968
<NAME> T. ROWE PRICE PRIME RESERVE PLUS SHARES
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAY-31-2000
<PERIOD-END> MAY-31-2000
<INVESTMENTS-AT-COST> 0
<INVESTMENTS-AT-VALUE> 0
<RECEIVABLES> 0
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 0
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 0
<TOTAL-LIABILITIES> 0
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 48573
<SHARES-COMMON-STOCK> 48573
<SHARES-COMMON-PRIOR> 19974
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (1)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 48572
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2008
<OTHER-INCOME> 0
<EXPENSES-NET> 272
<NET-INVESTMENT-INCOME> 1736
<REALIZED-GAINS-CURRENT> 0
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 1735
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1736)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 142392
<NUMBER-OF-SHARES-REDEEMED> (115500)
<SHARES-REINVESTED> 1706
<NET-CHANGE-IN-ASSETS> 28597
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 127
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 272
<AVERAGE-NET-ASSETS> 34516
<PER-SHARE-NAV-BEGIN> 1
<PER-SHARE-NII> 0
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> 0.049
<PER-SHARE-DISTRIBUTIONS> (0.049)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1
<EXPENSE-RATIO> 0.79
</TABLE>
