[ARTICLE] 6
[CIK] 0000943309
[NAME] SB INSTITUTIONAL CASH MANAGEMENT FUND
[SERIES]
   [NUMBER] 2
   [NAME] INSTITUTIONAL CASH B
<TABLE>
<S>                             <C>
[PERIOD-TYPE]                   6-MOS
[FISCAL-YEAR-END]                          MAY-31-1998
[PERIOD-END]                               NOV-30-1997
[INVESTMENTS-AT-COST]                      434,835,440
[INVESTMENTS-AT-VALUE]                     434,835,440
[RECEIVABLES]                                1,885,324
[ASSETS-OTHER]                                 435,825
[OTHER-ITEMS-ASSETS]                                 0
[TOTAL-ASSETS]                             437,156,589
[PAYABLE-FOR-SECURITIES]                             0
[SENIOR-LONG-TERM-DEBT]                              0
[OTHER-ITEMS-LIABILITIES]                    2,601,568
[TOTAL-LIABILITIES]                        434,555,021
[SENIOR-EQUITY]                                      0
[PAID-IN-CAPITAL-COMMON]                   434,555,021
[SHARES-COMMON-STOCK]                        1,000,861
[SHARES-COMMON-PRIOR]                                1
[ACCUMULATED-NII-CURRENT]                            0
[OVERDISTRIBUTION-NII]                               0
[ACCUMULATED-NET-GAINS]                              0
[OVERDISTRIBUTION-GAINS]                             0
[ACCUM-APPREC-OR-DEPREC]                             0
[NET-ASSETS]                               434,555,021
[DIVIDEND-INCOME]                                    0
[INTEREST-INCOME]                            9,853,662
[OTHER-INCOME]                                       0
[EXPENSES-NET]                                 392,461
[NET-INVESTMENT-INCOME]                      9,461,201
[REALIZED-GAINS-CURRENT]                             0
[APPREC-INCREASE-CURRENT]                            0
[NET-CHANGE-FROM-OPS]                        9,461,201
[EQUALIZATION]                                       0
[DISTRIBUTIONS-OF-INCOME]                       21,791
[DISTRIBUTIONS-OF-GAINS]                             0
[DISTRIBUTIONS-OTHER]                                0
[NUMBER-OF-SHARES-SOLD]                      1,000,000
[NUMBER-OF-SHARES-REDEEMED]                        860
[SHARES-REINVESTED]                                  0
[NET-CHANGE-IN-ASSETS]                     218,500,036
[ACCUMULATED-NII-PRIOR]                              0
[ACCUMULATED-GAINS-PRIOR]                            0
[OVERDISTRIB-NII-PRIOR]                              0
[OVERDIST-NET-GAINS-PRIOR]                           0
[GROSS-ADVISORY-FEES]                          469,367
[INTEREST-EXPENSE]                                   0
[GROSS-EXPENSE]                                587,534
[AVERAGE-NET-ASSETS]                           185,925
[PER-SHARE-NAV-BEGIN]                             1.00
[PER-SHARE-NII]                                   .005
[PER-SHARE-GAIN-APPREC]                              0
[PER-SHARE-DIVIDEND]                            (.005)
[PER-SHARE-DISTRIBUTIONS]                            0
[RETURNS-OF-CAPITAL]                                 0
[PER-SHARE-NAV-END]                               1.00
[EXPENSE-RATIO]                                    .47
[AVG-DEBT-OUTSTANDING]                               0
[AVG-DEBT-PER-SHARE]                                 0
</TABLE>