<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 020
<NAME> JOHN HANCOCK U.S. GOVERNMENT CASH RESERVE
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-2001
<PERIOD-START> APR-01-2000
<PERIOD-END> SEP-30-2000
<INVESTMENTS-AT-COST> 103,757,392
<INVESTMENTS-AT-VALUE> 103,757,392
<RECEIVABLES> 1,450,945
<ASSETS-OTHER> 26,551
<OTHER-ITEMS-ASSETS> 315,942
<TOTAL-ASSETS> 105,550,830
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 223,351
<TOTAL-LIABILITIES> 223,351
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 105,327,479
<SHARES-COMMON-STOCK> 0
<SHARES-COMMON-PRIOR> 105,865,931
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 105,327,479
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 3,184,123
<OTHER-INCOME> 0
<EXPENSES-NET> 249,221
<NET-INVESTMENT-INCOME> 2,934,902
<REALIZED-GAINS-CURRENT> 0
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 2,934,902
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 2,934,902
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 88,834,268
<NUMBER-OF-SHARES-REDEEMED> 92,071,864
<SHARES-REINVESTED> 2,699,144
<NET-CHANGE-IN-ASSETS> (538,452)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 247,687
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 456,622
<AVERAGE-NET-ASSETS> 98,803,903
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.03
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> (0.03)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> 0.50
</TABLE>
