<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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<PAGE> PAGE 17
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<PAGE> PAGE 18
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<PAGE> PAGE 19
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<PAGE> PAGE 20
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070 H021200 N
070 I011200 N
070 I021200 N
070 J011200 Y
070 J021200 N
070 K011200 Y
070 K021200 N
070 L011200 N
070 L021200 N
070 M011200 N
070 M021200 N
070 N011200 Y
070 N021200 N
070 O011200 Y
<PAGE> PAGE 21
070 O021200 N
070 P011200 Y
070 P021200 N
070 Q011200 N
070 Q021200 N
070 R011200 N
070 R021200 N
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071 B001200 0
071 C001200 0
071 D001200 0
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072 B001200 5695
072 C001200 0
072 D001200 0
072 E001200 0
072 F001200 64
072 G001200 0
072 H001200 0
072 I001200 11
072 J001200 9
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072 L001200 7
072 M001200 1
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072 P001200 0
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072 R001200 1
072 S001200 1
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072 X001200 917
072 Y001200 290
072 Z001200 5068
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072DD021200 0
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<PAGE> PAGE 22
074 D001200 0
074 E001200 0
074 F001200 0
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074 H001200 0
074 I001200 0
074 J001200 0
074 K001200 0
074 L001200 616
074 M001200 15
074 N001200 290064
074 O001200 5386
074 P001200 123
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074 V021200 0.00
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075 B001200 0
076 001200 0.00
024 001300 Y
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025 A001303 BA SECURITIES, INC.
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025 A001304 HSBC SECURITIES, INC.
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<PAGE> PAGE 23
028 B011300 310523
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028 G011300 2199002
028 G021300 6496
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034 001300 N
035 001300 0
036 B001300 0
037 001300 N
038 001300 0
039 001300 N
040 001300 Y
041 001300 Y
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042 B001300 0
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042 E001300 0
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046 001300 N
047 001300 Y
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048 A011300 300000
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048 B011300 1200000
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<PAGE> PAGE 24
048 C011300 0
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048 E011300 0
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048 F011300 0
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048 G011300 0
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048 H011300 0
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048 I011300 0
048 I021300 0.000
048 J011300 0
048 J021300 0.000
048 K011300 1500000
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050 001300 N
051 001300 N
052 001300 N
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053 C001300 N
055 A001300 N
055 B001300 N
056 001300 N
057 001300 N
058 A001300 N
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060 B001300 Y
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<PAGE> PAGE 25
062 R001300 0.0
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070 D021300 N
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070 E021300 N
070 F011300 N
070 F021300 N
070 G011300 N
070 G021300 N
070 H011300 N
070 H021300 N
070 I011300 N
070 I021300 N
070 J011300 Y
070 J021300 N
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070 L011300 N
070 L021300 N
070 M011300 N
070 M021300 N
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070 O021300 N
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070 R021300 N
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<PAGE> PAGE 26
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<PAGE> PAGE 27
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<PAGE> PAGE 28
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<PAGE> PAGE 29
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<PAGE> PAGE 30
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<PAGE> PAGE 31
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<PAGE> PAGE 32
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<PAGE> PAGE 33
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<PAGE> PAGE 34
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<PAGE> PAGE 35
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<PAGE> PAGE 36
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SIGNATURE JOHN J. ARTHUR
TITLE SR. V.P. & TREASURER
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<TABLE> <S> <C>
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<LEGEND>
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<CIK> 0000205007
<NAME> SHORT-TERM INVESTMENTS TRUST
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<ACCUMULATED-GAINS-PRIOR> 123933
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 385791
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 626186
<AVERAGE-NET-ASSETS> 371150424
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.02
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (0.02)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> 0.20
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information for the Short-Term
Investments Trust Treasury Portfolio Private Investment Class for the semi-
annual period ended February 28, 1997.
</LEGEND>
<CIK> 0000205007
<NAME> SHORT-TERM INVESTMENTS TRUST
<SERIES>
<NUMBER> 011
<NAME> TREASURY PORTFOLIO PRIVATE INVESTMENT CLASS
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> AUG-31-1997
<PERIOD-END> FEB-28-1997
<INVESTMENTS-AT-COST> 4653272823
<INVESTMENTS-AT-VALUE> 4653272823
<RECEIVABLES> 9899440
<ASSETS-OTHER> 239102
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 4663411365
<PAYABLE-FOR-SECURITIES> 86588867
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 18730915
<TOTAL-LIABILITIES> 105319782
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 4557378538
<SHARES-COMMON-STOCK> 4557378538
<SHARES-COMMON-PRIOR> 3703242819
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 713045
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 4558091583
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 111213973
<OTHER-INCOME> 0
<EXPENSES-NET> (3390362)
<NET-INVESTMENT-INCOME> 107823611
<REALIZED-GAINS-CURRENT> 64724
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 107888335
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (107823611)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 12748798333
<NUMBER-OF-SHARES-REDEEMED> (11914544538)
<SHARES-REINVESTED> 19881924
<NET-CHANGE-IN-ASSETS> 854200443
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 648321
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1246824
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 4161046
<AVERAGE-NET-ASSETS> 373251203
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.02
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (0.02)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> 0.39
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information for the Short-Term
Investments Trust Treasury Portfolio Personal Investment Class for the semi-
annual period ended February 28, 1997.
</LEGEND>
<CIK> 0000205007
<NAME> SHORT-TERM INVESTMENTS TRUST
<SERIES>
<NUMBER> 012
<NAME> TREASURY PORTFOLIO PERSONAL INVESTMENT CLASS
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> AUG-31-1997
<PERIOD-END> FEB-28-1997
<INVESTMENTS-AT-COST> 4653272823
<INVESTMENTS-AT-VALUE> 4653272823
<RECEIVABLES> 9899440
<ASSETS-OTHER> 239102
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 4663411365
<PAYABLE-FOR-SECURITIES> 86588867
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 18730915
<TOTAL-LIABILITIES> 105319782
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 4557378538
<SHARES-COMMON-STOCK> 4557378538
<SHARES-COMMON-PRIOR> 3703242819
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 713045
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 4558091583
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 111213973
<OTHER-INCOME> 0
<EXPENSES-NET> (3390362)
<NET-INVESTMENT-INCOME> 107823611
<REALIZED-GAINS-CURRENT> 64724
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 107888335
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (107823611)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 12748798333
<NUMBER-OF-SHARES-REDEEMED> (11914544538)
<SHARES-REINVESTED> 19881924
<NET-CHANGE-IN-ASSETS> 854200443
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 648321
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1246824
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 4161046
<AVERAGE-NET-ASSETS> 214470636
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.02
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (0.02)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> 0.59
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information for the Short-Term
Investments Trust Treasury Portfolio Cash Management Class for the semi-
annual period ended February 28, 1997.
</LEGEND>
<CIK> 0000205007
<NAME> SHORT-TERM INVESTMENTS TRUST
<SERIES>
<NUMBER> 013
<NAME> TREASURY PORTFOLIO CASH MANAGEMENT CLASS
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> AUG-31-1997
<PERIOD-END> FEB-28-1997
<INVESTMENTS-AT-COST> 4653272823
<INVESTMENTS-AT-VALUE> 4653272823
<RECEIVABLES> 9899440
<ASSETS-OTHER> 239102
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 4663411365
<PAYABLE-FOR-SECURITIES> 86588867
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 18730915
<TOTAL-LIABILITIES> 105319782
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 4557378538
<SHARES-COMMON-STOCK> 4557378538
<SHARES-COMMON-PRIOR> 3703242819
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 713045
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 4558091583
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 111213973
<OTHER-INCOME> 0
<EXPENSES-NET> (3390362)
<NET-INVESTMENT-INCOME> 107823611
<REALIZED-GAINS-CURRENT> 64724
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 107888335
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (107823611)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 12748798333
<NUMBER-OF-SHARES-REDEEMED> (11914544538)
<SHARES-REINVESTED> 19881924
<NET-CHANGE-IN-ASSETS> 854200443
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 648321
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1246824
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 4161046
<AVERAGE-NET-ASSETS> 816503938
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.03
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (0.03)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> 0.17
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information for the Short-Term
Investments Trust Treasury Taxadvantage Portfolio Private Class for the
semi-annual period ended February 28, 1997.
</LEGEND>
<CIK> 0000205007
<NAME> SHORT-TERM INVESTMENTS TRUST
<SERIES>
<NUMBER> 014
<NAME> TREASURY TAXADVANTAGE PORTFOLIO PRIVATE CLASS
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> AUG-31-1997
<PERIOD-END> FEB-28-1997
<INVESTMENTS-AT-COST> 390838154
<INVESTMENTS-AT-VALUE> 390838154
<RECEIVABLES> 32815385
<ASSETS-OTHER> 36650
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 423690189
<PAYABLE-FOR-SECURITIES> 29806875
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1635649
<TOTAL-LIABILITIES> 31442524
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 392088391
<SHARES-COMMON-STOCK> 392088391
<SHARES-COMMON-PRIOR> 457072217
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 159274
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 392247665
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 10956325
<OTHER-INCOME> 0
<EXPENSES-NET> (492812)
<NET-INVESTMENT-INCOME> 10463513
<REALIZED-GAINS-CURRENT> 35341
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 10498854
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (10463513)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 877658760
<NUMBER-OF-SHARES-REDEEMED> (943099193)
<SHARES-REINVESTED> 456607
<NET-CHANGE-IN-ASSETS> (64957485)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 123933
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 385791
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 626186
<AVERAGE-NET-ASSETS> 55497826
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.02
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (0.02)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> 0.45
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
ARTICLE> 6
<LEGEND>
This schedule contains summary financial information for the Short-Term
Investments Trust Treasury Portfolio Resource Class for the semi-annual
period ended February 28, 1997.
</LEGEND>
<CIK> 0000205007
<NAME> SHORT-TERM INVESTMENTS TRUST
<SERIES>
<NUMBER> 015
<NAME> TREASURY PORTFOLIO RESOURCE CLASS
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> AUG-31-1997
<PERIOD-END> FEB-28-1997
<INVESTMENTS-AT-COST> 4653272823
<INVESTMENTS-AT-VALUE> 4653272823
<RECEIVABLES> 9899440
<ASSETS-OTHER> 239102
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 4663411365
<PAYABLE-FOR-SECURITIES> 86588867
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 18730915
<TOTAL-LIABILITIES> 105319782
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 4557378538
<SHARES-COMMON-STOCK> 4557378538
<SHARES-COMMON-PRIOR> 3703242819
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 713045
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 4558091583
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 111213973
<OTHER-INCOME> 0
<EXPENSES-NET> (3390362)
<NET-INVESTMENT-INCOME> 107823611
<REALIZED-GAINS-CURRENT> 64724
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 107888335
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (107823611)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 12748798333
<NUMBER-OF-SHARES-REDEEMED> (11914544538)
<SHARES-REINVESTED> 19881924
<NET-CHANGE-IN-ASSETS> 854200443
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 648321
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1246824
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 4161046
<AVERAGE-NET-ASSETS> 148403347
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.03
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> (0.03)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> 0.25
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
