WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000862502
<NAME> Cash Management Fund
<SERIES>
<NUMBER>001
<NAME>Salomon Brothers Investment Series
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> Dec-31-2000
<PERIOD-END> Jun-30-2000
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<NET-CHANGE-FROM-OPS> 1,109,453
<EQUALIZATION> 0
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<NUMBER-OF-SHARES-SOLD> 17,030,754
<NUMBER-OF-SHARES-REDEEMED> 17,006,964
<SHARES-REINVESTED> 90,304
<NET-CHANGE-IN-ASSETS> (14,951,218)
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</TABLE>
