<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial
information extracted from Allmerica
financial statements at June 30, 2000
and is qualified in its entirety by reference
to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 001
<NAME> AIT Core Equity
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<INVESTMENTS-AT-COST> 923,838,000
<INVESTMENTS-AT-VALUE> 1,072,943,000
<RECEIVABLES> 18,499,000
<ASSETS-OTHER> 18,201,000
<OTHER-ITEMS-ASSETS> 50,994,000
<TOTAL-ASSETS> 1,160,637,000
<PAYABLE-FOR-SECURITIES> 25,302,000
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 51,563,000
<TOTAL-LIABILITIES> 76,865,000
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 774,203,000
<SHARES-COMMON-STOCK> 361,490,000
<SHARES-COMMON-PRIOR> 325,117,000
<ACCUMULATED-NII-CURRENT> 279,000
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 160,185,000
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 149,105,000
<NET-ASSETS> 1,083,772,000
<DIVIDEND-INCOME> 3,812,000
<INTEREST-INCOME> 680,000
<OTHER-INCOME> 203,000
<EXPENSES-NET> 2,214,000
<NET-INVESTMENT-INCOME> 2,481,000
<REALIZED-GAINS-CURRENT> 163,214,000
<APPREC-INCREASE-CURRENT> (158,641,000)
<NET-CHANGE-FROM-OPS> 7,054,000
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 2,408,000
<DISTRIBUTIONS-OF-GAINS> 106,111,000
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 6,190,000
<NUMBER-OF-SHARES-REDEEMED> 5,944,000
<SHARES-REINVESTED> 36,127,000
<NET-CHANGE-IN-ASSETS> 7,475,000
<ACCUMULATED-NII-PRIOR> 206,000
<ACCUMULATED-GAINS-PRIOR> 103,082,000
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 2,237,000
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 2,506,000
<AVERAGE-NET-ASSETS> 1,070,510,000
<PER-SHARE-NAV-BEGIN> 3.31
<PER-SHARE-NII> 0.01
<PER-SHARE-GAIN-APPREC> 0.01
<PER-SHARE-DIVIDEND> 0.01
<PER-SHARE-DISTRIBUTIONS> 0.33
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 3.00
<EXPENSE-RATIO> 42
</TABLE>
