<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000889170
<NAME> MEEDER ADVISOR FUNDS
<SERIES>
<NUMBER> 001
<NAME> THE INSTITUTIONAL FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
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<TOTAL-LIABILITIES> 7,013,851
<SENIOR-EQUITY> 0
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<SHARES-COMMON-STOCK> 1,125,719,689
<SHARES-COMMON-PRIOR> 868,168,739
<ACCUMULATED-NII-CURRENT> 0
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<NUMBER-OF-SHARES-REDEEMED> (3,340,237,219)
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<FN>
<F1>
</FN>
</TABLE>
