<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial
information extracted from Allmerica
from form N-SAR for the period ended a June 30, 2000
and is qualified in its entirety by reference
to such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 1
<NAME> Allmerica Securities Trust
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<INVESTMENTS-AT-COST> 93,569,746
<INVESTMENTS-AT-VALUE> 91,337,631
<RECEIVABLES> 1,907,596
<ASSETS-OTHER> 10,418,117
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 103,663,344
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 10,572,366
<TOTAL-LIABILITIES> 10,572,366
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 97,037,349
<SHARES-COMMON-STOCK> 8,592,306
<SHARES-COMMON-PRIOR> 8,592,306
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> (18,826)
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> (1,695,430)
<ACCUM-APPREC-OR-DEPREC> (2,232,115)
<NET-ASSETS> 93,090,978
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 3,747,299
<OTHER-INCOME> 0
<EXPENSES-NET> 385,605
<NET-INVESTMENT-INCOME> 3,361,694
<REALIZED-GAINS-CURRENT> (1,761,769)
<APPREC-INCREASE-CURRENT> 771,327
<NET-CHANGE-FROM-OPS> 2,371,252
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (3,436,922)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> (1,065,670)
<ACCUMULATED-NII-PRIOR> 56,402
<ACCUMULATED-GAINS-PRIOR> 66,339
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 236,773
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 0
<AVERAGE-NET-ASSETS> 0
<PER-SHARE-NAV-BEGIN> 10.96
<PER-SHARE-NII> 0.39
<PER-SHARE-GAIN-APPREC> (0.12)
<PER-SHARE-DIVIDEND> 0.40
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.83
<EXPENSE-RATIO> 83
</TABLE>
