<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial
information extracted from Hyperion
from form N-SAR for the period ended 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> 233,728,788
<INVESTMENTS-AT-VALUE> 226,266,842
<RECEIVABLES> 1,435,313
<ASSETS-OTHER> 69,388
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 227,771,543
<PAYABLE-FOR-SECURITIES> 72,958,000
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 250,465
<TOTAL-LIABILITIES> 73,208,465
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 165,184,477
<SHARES-COMMON-STOCK> 17,011,573
<SHARES-COMMON-PRIOR> 17,036,573
<ACCUMULATED-NII-CURRENT> 3,058,606
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (6,218,060)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (7,461,946)
<NET-ASSETS> 154,563,077
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 7,777,525
<OTHER-INCOME> 0
<EXPENSES-NET> 3,100,252
<NET-INVESTMENT-INCOME> 4,677,273
<REALIZED-GAINS-CURRENT> (636,109)
<APPREC-INCREASE-CURRENT> (8,298)
<NET-CHANGE-FROM-OPS> 4,032,866
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (3,296,852)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 25,000
<SHARES-REINVESTED> (197,000)
<NET-CHANGE-IN-ASSETS> 539,014
<ACCUMULATED-NII-PRIOR> 1,678,185
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 5,581,950
<GROSS-ADVISORY-FEES> 494,248
<INTEREST-EXPENSE> 2,270,492
<GROSS-EXPENSE> 3,100,252
<AVERAGE-NET-ASSETS> 172,149,085
<PER-SHARE-NAV-BEGIN> 9.04
<PER-SHARE-NII> 0.32
<PER-SHARE-GAIN-APPREC> (0.03)
<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> 0.24
<RETURNS-OF-CAPITAL> 2
<PER-SHARE-NAV-END> 9.09
<EXPENSE-RATIO> 4
</TABLE>
