AIM INVESTMENT SECURITIES FUNDS INC
NSAR-A, 1998-03-27
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<PAGE>      PAGE  1
000 A000000 01/31/98
000 C000000 842790
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001 A000000 AIM INVESTMENT SECURITIES FUNDS
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002 D010000 77046
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013 A00AA01 KPMG PEAT MARWICK LLP
013 B01AA01 HOUSTON
013 B02AA01 TX
013 B03AA01 77002
015 A00AA01 BANK OF NEW YORK
015 B00AA01 C
015 C01AA01 NEW YORK
015 C02AA01 NY
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022 A000001 FIRST BOSTON CORP. (THE)
022 B000001 13-5659485
022 C000001     97645
022 D000001     19752
022 A000002 DONALDSON, LUFKIN & JENRETTE SECURITIES CORP.
022 B000002 13-2741729
022 C000002     37248
022 D000002     46746
022 A000003 BANK OF NEW YORK (THE)
022 B000003 13-3878175
022 C000003     40257
022 D000003     30051
022 A000004 GOLDMAN SACHS & CO.
022 B000004 13-5108880
022 C000004     55191
022 D000004     12287
022 A000005 SALOMON BROTHERS INC.
022 B000005 13-3082694
022 C000005     34779
022 D000005     19853
022 A000006 SMITH BARNEY INC.
022 B000006 13-1912900
022 C000006      6993
022 D000006     27281
022 A000007 FUJI SECURITIES INC.
022 B000007 36-2880742
022 C000007         0
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022 A000008 PAINE WEBBER INC.
022 B000008 13-2638166
022 C000008      4696
022 D000008     17556
022 A000009 DEUTSCHE BANK CAPITAL CORP.
022 B000009 13-6124068
022 C000009         0
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022 A000010 UBS SECURITIES INC.
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008 A000201 AIM ADVISORS, INC.
008 B000201 A
008 C000201 801-12313
008 D010201 HOUSTON
008 D020201 TX
008 D030201 77046
011 A000201 FUND MANAGEMENT COMPANY (FMC)
011 B000201 8-41848
011 C010201 HOUSTON
011 C020201 TX
011 C030201 77046
011 A000202 AIM DISTRIBUTORS INC.
011 B000202 8-21323
011 C010202 HOUSTON
<PAGE>      PAGE  8
011 C020202 TX
011 C030202 77046
012 A000201 AIM FUND SERVICES, INC.
012 B000201 84-5432
012 C010201 HOUSTON
012 C020201 TX
012 C030201 77210
012 C040201 4739
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028 B020200      1449
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SIGNATURE   JOHN J. ARTHUR                               
TITLE       SR. V.P. & TRESURER 
 


<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information from the AIM Limited
Maturity Treasury Fund Class A Shares January 31, 1998 semiannual report.
</LEGEND>
<CIK> 0000842790
<NAME> AIM INVESTMENT SECURITIES FUNDS
<SERIES>
   <NUMBER> 2
   <NAME> AIM LIMITED MATURITY TREASURY FUND CLASS A SHARES
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
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<PERIOD-END>                               JAN-31-1998
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<INVESTMENTS-AT-VALUE>                       470850664
<RECEIVABLES>                                  9692194
<ASSETS-OTHER>                                  100777
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<PAYABLE-FOR-SECURITIES>                      36461826
<SENIOR-LONG-TERM-DEBT>                              0
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<DIVIDEND-INCOME>                                    0
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<OTHER-INCOME>                                       0
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<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information from the AIM Limited
Maturity Treasury fund Institutional Class January 31, 1998 semiannual
report.
</LEGEND>
<CIK> 0000842790
<NAME> AIM INVESTMENT SECURITIES FUNDS
<SERIES>
   <NUMBER> 3
   <NAME> AIM LIMITED MATURITY TREASURY FUND INSTITUTIONAL CLASS
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUL-31-1998
<PERIOD-END>                               JAN-31-1998
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<INVESTMENTS-AT-VALUE>                       470850664
<RECEIVABLES>                                  9692194
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<OTHER-ITEMS-ASSETS>                             14049
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<PAYABLE-FOR-SECURITIES>                      36461826
<SENIOR-LONG-TERM-DEBT>                              0
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<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     443990868
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<EXPENSES-NET>                               (1121951)
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<DISTRIBUTIONS-OF-INCOME>                   (11841804)
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<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>


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