<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information from the AIM Mid Cap
Equity Fund Class A Shares June 30, 2000 semiannual reports.
</LEGEND>
<SERIES>
<NUMBER> 5
<NAME> AIM MID CAP EQUITY FUND CLASS A SHARES
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<INVESTMENTS-AT-COST> 348,496,723
<INVESTMENTS-AT-VALUE> 404,741,908
<RECEIVABLES> 14,296,083
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 419,037,991
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 14,307,133
<TOTAL-LIABILITIES> 14,307,133
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 254,909,388
<SHARES-COMMON-STOCK> 15,848,671
<SHARES-COMMON-PRIOR> 14,582,198
<ACCUMULATED-NII-CURRENT> (15,115)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 93,591,400
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 56,245,185
<NET-ASSETS> 404,730,858
<DIVIDEND-INCOME> 3,039,355
<INTEREST-INCOME> 0
<OTHER-INCOME> 17,891
<EXPENSES-NET> (3,072,361)
<NET-INVESTMENT-INCOME> (15,115)
<REALIZED-GAINS-CURRENT> 62,399,252
<APPREC-INCREASE-CURRENT> (23,336,622)
<NET-CHANGE-FROM-OPS> 39,047,515
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 3,038,816
<NUMBER-OF-SHARES-REDEEMED> 1,772,343
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 71,062,577
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 31,192,148
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1,340,842
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 3,075,631
<AVERAGE-NET-ASSETS> 198,999,149
<PER-SHARE-NAV-BEGIN> 23.48
<PER-SHARE-NII> 0.04
<PER-SHARE-GAIN-APPREC> 2.74
<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 26.26
<EXPENSE-RATIO> 1.36
</TABLE>
