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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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<PAGE> PAGE 21
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<PAGE> PAGE 22
074 U011200 322922
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034 001300 N
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039 001300 N
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<PAGE> PAGE 23
042 E001300 0
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048 I021300 0.000
048 J011300 0
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048 K011300 1500000
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050 001300 N
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055 A001300 N
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058 A001300 N
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060 B001300 Y
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<PAGE> PAGE 24
062 D001300 87.3
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063 B001300 0.0
064 A001300 N
064 B001300 N
066 A001300 N
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068 A001300 N
068 B001300 N
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070 A011300 Y
070 A021300 Y
070 B011300 N
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070 C011300 N
070 C021300 N
070 D011300 N
070 D021300 N
070 E011300 N
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
070 K011300 Y
070 K021300 N
070 L011300 N
070 L021300 N
070 M011300 N
070 M021300 N
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<PAGE> PAGE 25
070 N021300 N
070 O011300 Y
070 O021300 N
070 P011300 Y
070 P021300 N
070 Q011300 N
070 Q021300 N
070 R011300 N
070 R021300 N
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<PAGE> PAGE 26
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<PAGE> PAGE 27
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034 001400 N
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<PAGE> PAGE 28
048 J021400 0.000
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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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SIGNATURE JOHN J. ARTHUR
TITLE SR. V.P. & TREASURER
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information for the Short-Term
Investments Trust Treasury Portfolio Institutional Class for the annual
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</LEGEND>
<CIK> 0000205007
<NAME> SHORT-TERM INVESTMENTS TRUST
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<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information for the Short-Term
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</LEGEND>
<CIK> 0000205007
<NAME> SHORT-TERM INVESMENTS TRUST
<SERIES>
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<NAME> TREASURY TAXADVANTAGE PORTFOLIO INSTITUTIONAL CLASS
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</TABLE>
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information for the Short-Term
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period ended August 31, 1997.
</LEGEND>
<CIK> 0000205007
<NAME> SHORT-TERM INVESTMENTS TRUST
<SERIES>
<NUMBER> 011
<NAME> TREASURY PORTFOLIO PRIVATE INVESTMENT CLASS
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<SHARES-COMMON-STOCK> 5259983781
<SHARES-COMMON-PRIOR> 3703242819
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 804724
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 5260788505
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 244075766
<OTHER-INCOME> 0
<EXPENSES-NET> (7296033)
<NET-INVESTMENT-INCOME> 236779733
<REALIZED-GAINS-CURRENT> 215978
<APPREC-INCREASE-CURRENT> 0
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<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (236779733)
<DISTRIBUTIONS-OF-GAINS> (59575)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 27695639051
<NUMBER-OF-SHARES-REDEEMED> (26190404179)
<SHARES-REINVESTED> 51506090
<NET-CHANGE-IN-ASSETS> 1556897365
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 648321
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2666379
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 8957752
<AVERAGE-NET-ASSETS> 398566784
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.05
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (0.05)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<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 annual
period ended August 31, 1997.
</LEGEND>
<CIK> 0000205007
<NAME> SHORT-TERM INVESTMENTS TRUST
<SERIES>
<NUMBER> 012
<NAME> TREASURY PORTFOLIO PERSONAL INVESTMENT CLASS
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> AUG-31-1997
<PERIOD-END> AUG-31-1997
<INVESTMENTS-AT-COST> 5275690884
<INVESTMENTS-AT-VALUE> 5275690884
<RECEIVABLES> 8635412
<ASSETS-OTHER> 202059
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 5284528355
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 23739850
<TOTAL-LIABILITIES> 23739850
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 5259983781
<SHARES-COMMON-STOCK> 5259983781
<SHARES-COMMON-PRIOR> 3703242819
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 804724
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 5260788505
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 244075766
<OTHER-INCOME> 0
<EXPENSES-NET> (7296033)
<NET-INVESTMENT-INCOME> 236779733
<REALIZED-GAINS-CURRENT> 215978
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 236995711
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (236779733)
<DISTRIBUTIONS-OF-GAINS> (59575)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 27695639051
<NUMBER-OF-SHARES-REDEEMED> (26190404179)
<SHARES-REINVESTED> 51506090
<NET-CHANGE-IN-ASSETS> 1556897365
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 648321
<OVERDISTRIB-NII-PRIOR> 0
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<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 8957752
<AVERAGE-NET-ASSETS> 242057960
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.05
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<PER-SHARE-DIVIDEND> (0.05)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> 0.60
<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 annual
period ended August 31, 1997.
</LEGEND>
<CIK> 0000205007
<NAME> SHORT-TERM INVESTMENTS TRUST
<SERIES>
<NUMBER> 013
<NAME> TREASURY PORTFOLIO CASH MANAGEMENT CLASS
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> AUG-31-1997
<PERIOD-END> AUG-31-1997
<INVESTMENTS-AT-COST> 5275690884
<INVESTMENTS-AT-VALUE> 5275690884
<RECEIVABLES> 8635412
<ASSETS-OTHER> 202059
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 5284528355
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 23739850
<TOTAL-LIABILITIES> 23739850
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 5259983781
<SHARES-COMMON-STOCK> 5259983781
<SHARES-COMMON-PRIOR> 3703242819
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 804724
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 5260788505
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 244075766
<OTHER-INCOME> 0
<EXPENSES-NET> (7296033)
<NET-INVESTMENT-INCOME> 236779733
<REALIZED-GAINS-CURRENT> 215978
<APPREC-INCREASE-CURRENT> 0
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<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (236779733)
<DISTRIBUTIONS-OF-GAINS> (59575)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 27695639051
<NUMBER-OF-SHARES-REDEEMED> (26190404179)
<SHARES-REINVESTED> 51506090
<NET-CHANGE-IN-ASSETS> 1556897365
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 648321
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2666379
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 8957752
<AVERAGE-NET-ASSETS> 781320880
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.05
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (0.05)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<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 Investment Class for
the annual period ended August 31, 1997.
</LEGEND>
<CIK> 0000205007
<NAME> SHORT-TERM INVESMENTS TRUST
<SERIES>
<NUMBER> 014
<NAME> TREASURY TAXADVANTAGE PORTFOLIO PRIVATE INVESTMENT CLASS
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> AUG-31-1997
<PERIOD-END> AUG-31-1997
<INVESTMENTS-AT-COST> 290127763
<INVESTMENTS-AT-VALUE> 290127763
<RECEIVABLES> 63821256
<ASSETS-OTHER> 28094
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 353977113
<PAYABLE-FOR-SECURITIES> 55017151
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1397182
<TOTAL-LIABILITIES> 56414333
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 297361476
<SHARES-COMMON-STOCK> 297361476
<SHARES-COMMON-PRIOR> 457072217
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 201304
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 297562780
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 20141650
<OTHER-INCOME> 0
<EXPENSES-NET> (899138)
<NET-INVESTMENT-INCOME> 19242512
<REALIZED-GAINS-CURRENT> 77371
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 19319883
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (19242512)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1524679522
<NUMBER-OF-SHARES-REDEEMED> (1685295086)
<SHARES-REINVESTED> 904823
<NET-CHANGE-IN-ASSETS> (159633370)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 123933
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 705397
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1151662
<AVERAGE-NET-ASSETS> 49702532
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.05
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (0.05)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> 0.45
<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 Resource Class for the annual
period ended August 31, 1997.
</LEGEND>
<CIK> 0000205007
<NAME> SHORT-TERM INVESTMENTS TRUST
<SERIES>
<NUMBER> 015
<NAME> TREASURY PORTFOLIO RESOURCE CLASS
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> AUG-31-1997
<PERIOD-END> AUG-31-1997
<INVESTMENTS-AT-COST> 5275690884
<INVESTMENTS-AT-VALUE> 5275690884
<RECEIVABLES> 8635412
<ASSETS-OTHER> 202059
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 5284528355
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 23739850
<TOTAL-LIABILITIES> 23739850
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 5259983781
<SHARES-COMMON-STOCK> 5259983781
<SHARES-COMMON-PRIOR> 3703242819
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 804724
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 5260788505
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 244075766
<OTHER-INCOME> 0
<EXPENSES-NET> (7296033)
<NET-INVESTMENT-INCOME> 236779733
<REALIZED-GAINS-CURRENT> 215978
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 236995711
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (236779733)
<DISTRIBUTIONS-OF-GAINS> (59575)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 27695639051
<NUMBER-OF-SHARES-REDEEMED> (26190404179)
<SHARES-REINVESTED> 51506090
<NET-CHANGE-IN-ASSETS> 1556897365
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 648321
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2666379
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 8957752
<AVERAGE-NET-ASSETS> 197440644
<PER-SHARE-NAV-BEGIN> 1.00
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<PER-SHARE-DIVIDEND> (0.05)
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<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> 0.25
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
