<PAGE> PAGE 1
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<PAGE> PAGE 2
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<PAGE> PAGE 3
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<PAGE> PAGE 4
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<PAGE> PAGE 5
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<PAGE> PAGE 6
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<PAGE> PAGE 7
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<PAGE> PAGE 8
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<PAGE> PAGE 9
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<PAGE> PAGE 10
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<PAGE> PAGE 11
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<PAGE> PAGE 12
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<PAGE> PAGE 13
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<PAGE> PAGE 14
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<PAGE> PAGE 15
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<PAGE> PAGE 16
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SIGNATURE IRVING P. DAVID
TITLE CONTROLLER
[ARTICLE] 6
[CIK] 0000943309
[NAME] SMITH BARNEY INSTITUTIONAL CASH MANAGEMENT FUND INC.
[SERIES]
[NUMBER] 1
[NAME] CASH PORTFOLIO
<TABLE>
<S> <C>
[PERIOD-TYPE] YEAR
[FISCAL-YEAR-END] MAY-31-1999
[PERIOD-END] MAY-31-1999
[INVESTMENTS-AT-COST] 1,079,102,248
[INVESTMENTS-AT-VALUE] 1,079,102,248
[RECEIVABLES] 1,760,774
[ASSETS-OTHER] 188,442
[OTHER-ITEMS-ASSETS] 0
[TOTAL-ASSETS] 1,081,051,464
[PAYABLE-FOR-SECURITIES] 19,098,008
[SENIOR-LONG-TERM-DEBT] 0
[OTHER-ITEMS-LIABILITIES] 5,448,374
[TOTAL-LIABILITIES] 24,546,382
[SENIOR-EQUITY] 0
[PAID-IN-CAPITAL-COMMON] 1,056,505,082
[SHARES-COMMON-STOCK] 1,056,498,989
[SHARES-COMMON-PRIOR] 848,376,694
[ACCUMULATED-NII-CURRENT] 0
[OVERDISTRIBUTION-NII] 0
[ACCUMULATED-NET-GAINS] 0
[OVERDISTRIBUTION-GAINS] 0
[ACCUM-APPREC-OR-DEPREC] 0
[NET-ASSETS] 1,056,505,082
[DIVIDEND-INCOME] 0
[INTEREST-INCOME] 51,879,884
[OTHER-INCOME] 0
[EXPENSES-NET] 2,248,5233
[NET-INVESTMENT-INCOME] 49,631,651
[REALIZED-GAINS-CURRENT] 29,546
[APPREC-INCREASE-CURRENT] 0
[NET-CHANGE-FROM-OPS] 49,661,197
[EQUALIZATION] 0
[DISTRIBUTIONS-OF-INCOME] 49,631,651
[DISTRIBUTIONS-OF-GAINS] 29,546
[DISTRIBUTIONS-OTHER] 0
[NUMBER-OF-SHARES-SOLD] 7,683,594,257
[NUMBER-OF-SHARES-REDEEMED] 7,522,505,306
[SHARES-REINVESTED] 47,033,344
[NET-CHANGE-IN-ASSETS] 305,722,501
[ACCUMULATED-NII-PRIOR] 0
[ACCUMULATED-GAINS-PRIOR] 0
[OVERDISTRIB-NII-PRIOR] 0
[OVERDIST-NET-GAINS-PRIOR] 0
[GROSS-ADVISORY-FEES] 2,641,152
[INTEREST-EXPENSE] 0
[GROSS-EXPENSE] 3,030,739
[AVERAGE-NET-ASSETS] 978,204,339
[PER-SHARE-NAV-BEGIN] 1.00
[PER-SHARE-NII] 0.05
[PER-SHARE-GAIN-APPREC] 0
[PER-SHARE-DIVIDEND] 0.05
[PER-SHARE-DISTRIBUTIONS] 0
[RETURNS-OF-CAPITAL] 0
[PER-SHARE-NAV-END] 1.00
[EXPENSE-RATIO] 0.23
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>
[ARTICLE] 6
[CIK] 0000943309
[NAME] SMITH BARNEY INSTITUTIONAL CASH MANAGEMENT FUND INC.
[SERIES]
[NUMBER] 2
[NAME] GOVERNMENT MONEY MARKET PORTFOLIO
<TABLE>
<S> <C>
[PERIOD-TYPE] YEAR
[FISCAL-YEAR-END] MAY-31-1999
[PERIOD-END] MAY-31-1999
[INVESTMENTS-AT-COST] 146,682,847
[INVESTMENTS-AT-VALUE] 146,682,847
[RECEIVABLES] 4,826
[ASSETS-OTHER] 107,717
[OTHER-ITEMS-ASSETS] 0
[TOTAL-ASSETS] 146,795,390
[PAYABLE-FOR-SECURITIES] 0
[SENIOR-LONG-TERM-DEBT] 0
[OTHER-ITEMS-LIABILITIES] 692,164
[TOTAL-LIABILITIES] 692,164
[SENIOR-EQUITY] 0
[PAID-IN-CAPITAL-COMMON] 146,103,226
[SHARES-COMMON-STOCK] 146,099,162
[SHARES-COMMON-PRIOR] 88,481,697
[ACCUMULATED-NII-CURRENT] 0
[OVERDISTRIBUTION-NII] 0
[ACCUMULATED-NET-GAINS] 0
[OVERDISTRIBUTION-GAINS] 0
[ACCUM-APPREC-OR-DEPREC] 0
[NET-ASSETS] 146,103,226
[DIVIDEND-INCOME] 0
[INTEREST-INCOME] 5,752,457
[OTHER-INCOME] 0
[EXPENSES-NET] 259,990
[NET-INVESTMENT-INCOME] 5,492,467
[REALIZED-GAINS-CURRENT] 3,607
[APPREC-INCREASE-CURRENT] 0
[NET-CHANGE-FROM-OPS] 5,496,074
[EQUALIZATION] 0
[DISTRIBUTIONS-OF-INCOME] 49,633,063
[DISTRIBUTIONS-OF-GAINS] 27,593
[DISTRIBUTIONS-OTHER] 0
[NUMBER-OF-SHARES-SOLD] 833,058,394
[NUMBER-OF-SHARES-REDEEMED] 780,645,320
[SHARES-REINVESTED] 5,204,391
[NET-CHANGE-IN-ASSETS] 57,619,645
[ACCUMULATED-NII-PRIOR] 0
[ACCUMULATED-GAINS-PRIOR] 0
[OVERDISTRIB-NII-PRIOR] 0
[OVERDIST-NET-GAINS-PRIOR] 0
[GROSS-ADVISORY-FEES] 304,826
[INTEREST-EXPENSE] 0
[GROSS-EXPENSE] 460,672
[AVERAGE-NET-ASSETS] 112,958,979
[PER-SHARE-NAV-BEGIN] 1.00
[PER-SHARE-NII] 0.05
[PER-SHARE-GAIN-APPREC] 0
[PER-SHARE-DIVIDEND] 0.05
[PER-SHARE-DISTRIBUTIONS] 0
[RETURNS-OF-CAPITAL] 0
[PER-SHARE-NAV-END] 1.00
[EXPENSE-RATIO] 0.23
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>
[ARTICLE] 6
[CIK] 0000943309
[NAME] SMITH BARNEY INSTITUTIONAL CASH MANAGEMENT FUND INC.
[SERIES]
[NUMBER] 3
[NAME] MUNICIPAL MONEY MARKET PORTFOLIO
<TABLE>
<S> <C>
[PERIOD-TYPE] YEAR
[FISCAL-YEAR-END] MAY-31-1999
[PERIOD-END] MAY-31-1999
[INVESTMENTS-AT-COST] 304,536,269
[INVESTMENTS-AT-VALUE] 304,536,269
[RECEIVABLES] 9,898,762
[ASSETS-OTHER] 53,084
[OTHER-ITEMS-ASSETS] 0
[TOTAL-ASSETS] 314,488,115
[PAYABLE-FOR-SECURITIES] 2,011,560
[SENIOR-LONG-TERM-DEBT] 0
[OTHER-ITEMS-LIABILITIES] 933,318
[TOTAL-LIABILITIES] 2,944,878
[SENIOR-EQUITY] 0
[PAID-IN-CAPITAL-COMMON] 311,544,778
[SHARES-COMMON-STOCK] 311,544,338
[SHARES-COMMON-PRIOR] 85,670,997
[ACCUMULATED-NII-CURRENT] 0
[OVERDISTRIBUTION-NII] 0
[ACCUMULATED-NET-GAINS] (1,541)
[OVERDISTRIBUTION-GAINS] 0
[ACCUM-APPREC-OR-DEPREC] 0
[NET-ASSETS] 311,543,237
[DIVIDEND-INCOME] 0
[INTEREST-INCOME] 4,531,579
[OTHER-INCOME] 0
[EXPENSES-NET] 312,458
[NET-INVESTMENT-INCOME] 4,219,121
[REALIZED-GAINS-CURRENT] (184)
[APPREC-INCREASE-CURRENT] 0
[NET-CHANGE-FROM-OPS] 4,218,937
[EQUALIZATION] 0
[DISTRIBUTIONS-OF-INCOME] 4,219,987
[DISTRIBUTIONS-OF-GAINS] 0
[DISTRIBUTIONS-OTHER] 0
[NUMBER-OF-SHARES-SOLD] 1,654,103,348
[NUMBER-OF-SHARES-REDEEMED] 1,431,629,386
[SHARES-REINVESTED] 3,399,379
[NET-CHANGE-IN-ASSETS] 225,872,291
[ACCUMULATED-NII-PRIOR] 0
[ACCUMULATED-GAINS-PRIOR] 0
[OVERDISTRIB-NII-PRIOR] 0
[OVERDIST-NET-GAINS-PRIOR] 0
[GROSS-ADVISORY-FEES] 368,395
[INTEREST-EXPENSE] 0
[GROSS-EXPENSE] 531,852
[AVERAGE-NET-ASSETS] 136,442,529
[PER-SHARE-NAV-BEGIN] 1.00
[PER-SHARE-NII] 1.03
[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] 0.23
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>
