WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000912028
<NAME> T. ROWE PRICE SUMMIT CASH RESERVE FUND
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> OCT-31-2000
<PERIOD-END> OCT-31-2000
<INVESTMENTS-AT-COST> 2589014
<INVESTMENTS-AT-VALUE> 2589014
<RECEIVABLES> 22408
<ASSETS-OTHER> 1228
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 2612650
<PAYABLE-FOR-SECURITIES> 58235
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 10006
<TOTAL-LIABILITIES> 68241
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 2554429
<SHARES-COMMON-STOCK> 2554429
<SHARES-COMMON-PRIOR> 2440565
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (20)
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 2544409
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 162748
<OTHER-INCOME> 0
<EXPENSES-NET> 11611
<NET-INVESTMENT-INCOME> 151137
<REALIZED-GAINS-CURRENT> (56)
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 151081
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (151137)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 3992677
<NUMBER-OF-SHARES-REDEEMED> (4033595)
<SHARES-REINVESTED> 144782
<NET-CHANGE-IN-ASSETS> 103864
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 36
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 9379
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 11611
<AVERAGE-NET-ASSETS> 2582063
<PER-SHARE-NAV-BEGIN> 1
<PER-SHARE-NII> .059
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> (.059)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1
<EXPENSE-RATIO> .45
</TABLE>