[ARTICLE] 6
[CIK] 0000943309
[NAME] SB INSTITUTIONAL CASH MANAGEMENT FUND
[SERIES]
   [NUMBER] 3
   [NAME] INSTITUTIONAL GOVERNMENT A
<TABLE>
<S>                             <C>
[PERIOD-TYPE]                   6-MOS
[FISCAL-YEAR-END]                          MAY-31-1998
[PERIOD-END]                               NOV-30-1997
[INVESTMENTS-AT-COST]                      129,227,937
[INVESTMENTS-AT-VALUE]                     129,227,937
[RECEIVABLES]                                  130,286
[ASSETS-OTHER]                                     575
[OTHER-ITEMS-ASSETS]                                 0
[TOTAL-ASSETS]                             129,358,796
[PAYABLE-FOR-SECURITIES]                             0
[SENIOR-LONG-TERM-DEBT]                              0
[OTHER-ITEMS-LIABILITIES]                      653,113
[TOTAL-LIABILITIES]                            653,113
[SENIOR-EQUITY]                                      0
[PAID-IN-CAPITAL-COMMON]                   128,705,683
[SHARES-COMMON-STOCK]                      128,705,683
[SHARES-COMMON-PRIOR]                       57,679,729
[ACCUMULATED-NII-CURRENT]                            0
[OVERDISTRIBUTION-NII]                               0
[ACCUMULATED-NET-GAINS]                              0
[OVERDISTRIBUTION-GAINS]                             0
[ACCUM-APPREC-OR-DEPREC]                             0
[NET-ASSETS]                               128,705,683
[DIVIDEND-INCOME]                                    0
[INTEREST-INCOME]                            3,938,187
[OTHER-INCOME]                                       0
[EXPENSES-NET]                                 164,482
[NET-INVESTMENT-INCOME]                      3,773,345
[REALIZED-GAINS-CURRENT]                             0
[APPREC-INCREASE-CURRENT]                            0
[NET-CHANGE-FROM-OPS]                        3,733,345
[EQUALIZATION]                                       0
[DISTRIBUTIONS-OF-INCOME]                    3,773,345
[DISTRIBUTIONS-OF-GAINS]                             0
[DISTRIBUTIONS-OTHER]                                0
[NUMBER-OF-SHARES-SOLD]                    365,651,698
[NUMBER-OF-SHARES-REDEEMED]                329,479,544
[SHARES-REINVESTED]                          3,693,317
[NET-CHANGE-IN-ASSETS]                      23,134,529
[ACCUMULATED-NII-PRIOR]                              0
[ACCUMULATED-GAINS-PRIOR]                            0
[OVERDISTRIB-NII-PRIOR]                              0
[OVERDIST-NET-GAINS-PRIOR]                           0
[GROSS-ADVISORY-FEES]                          192,241
[INTEREST-EXPENSE]                                   0
[GROSS-EXPENSE]                                262,786
[AVERAGE-NET-ASSETS]                       141,861,198
[PER-SHARE-NAV-BEGIN]                             1.00
[PER-SHARE-NII]                                   .026
[PER-SHARE-GAIN-APPREC]                              0
[PER-SHARE-DIVIDEND]                            (.026)
[PER-SHARE-DISTRIBUTIONS]                            0
[RETURNS-OF-CAPITAL]                                 0
[PER-SHARE-NAV-END]                               1.00
[EXPENSE-RATIO]                                    .23
[AVG-DEBT-OUTSTANDING]                               0
[AVG-DEBT-PER-SHARE]                                 0
</TABLE>