<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FORM N-SAR
AND IS QUALIFIED IN ITSENTIRETY BY REFERENCE TO SUCH FORM N-SAR.
</LEGEND>
<RESTATED>
<CIK> 0000766351
<NAME> ADVANTUS SERIES FUND, INC.
<SERIES>
<NUMBER> 6
<NAME> INDEX 500 PORTFOLIO
<MULTIPLIER> 1000
<CURRENCY> US
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<EXCHANGE-RATE> 1
<INVESTMENTS-AT-COST> 322,232
<INVESTMENTS-AT-VALUE> 646,848
<RECEIVABLES> 6,182
<ASSETS-OTHER> 11
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 653,041
<PAYABLE-FOR-SECURITIES> 3,359
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 692
<TOTAL-LIABILITIES> 4,051
<SENIOR-EQUITY> 1,451
<PAID-IN-CAPITAL-COMMON> 322,472
<SHARES-COMMON-STOCK> 145,078
<SHARES-COMMON-PRIOR> 144,139
<ACCUMULATED-NII-CURRENT> 2,320
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (1,839)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 324,586
<NET-ASSETS> 648,990
<DIVIDEND-INCOME> 3,622
<INTEREST-INCOME> 101
<OTHER-INCOME> 0
<EXPENSES-NET> 1,403
<NET-INVESTMENT-INCOME> 2,320
<REALIZED-GAINS-CURRENT> 1,838
<APPREC-INCREASE-CURRENT> (7,760)
<NET-CHANGE-FROM-OPS> (3,602)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 80
<DISTRIBUTIONS-OF-GAINS> 9,445
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 21,236
<NUMBER-OF-SHARES-REDEEMED> 22,356
<SHARES-REINVESTED> 2,059
<NET-CHANGE-IN-ASSETS> (8,834)
<ACCUMULATED-NII-PRIOR> 80
<ACCUMULATED-GAINS-PRIOR> 5,768
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 979
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,403
<AVERAGE-NET-ASSETS> 642,898
<PER-SHARE-NAV-BEGIN> 4.56
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<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> 0.07
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 4.47
<EXPENSE-RATIO> 0.44
</TABLE>
