<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000741375
<NAME> MAS FUNDS
<SERIES>
<NUMBER> 131
<NAME> VALUE PORTFOLIO, INSTITUTIONAL CLASS
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> SEP-30-2000
<PERIOD-START> OCT-01-1999
<PERIOD-END> SEP-30-2000
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<OTHER-ITEMS-ASSETS> 111,224
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<PAYABLE-FOR-SECURITIES> 2,596
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<OTHER-ITEMS-LIABILITIES> 115,790
<TOTAL-LIABILITIES> 118,386
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1,048,476
<SHARES-COMMON-STOCK> 53,722
<SHARES-COMMON-PRIOR> 79,408
<ACCUMULATED-NII-CURRENT> 3,037
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<ACCUMULATED-NET-GAINS> (107,069)
<OVERDISTRIBUTION-GAINS> 0
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<NET-ASSETS> 996,425
<DIVIDEND-INCOME> 19,234
<INTEREST-INCOME> 984
<OTHER-INCOME> 0
<EXPENSES-NET> (6,993)
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<REALIZED-GAINS-CURRENT> (83,973)
<APPREC-INCREASE-CURRENT> 147,319
<NET-CHANGE-FROM-OPS> 76,571
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (12,262)
<DISTRIBUTIONS-OF-GAINS> (25,846)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 25,445
<NUMBER-OF-SHARES-REDEEMED> (60,973)
<SHARES-REINVESTED> 9,841
<NET-CHANGE-IN-ASSETS> (347,087)
<ACCUMULATED-NII-PRIOR> 5,140
<ACCUMULATED-GAINS-PRIOR> 116,212
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 5,261
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 7,088
<AVERAGE-NET-ASSETS> 1,053,245
<PER-SHARE-NAV-BEGIN> 13.59
<PER-SHARE-NII> 0.16
<PER-SHARE-GAIN-APPREC> 0.95
<PER-SHARE-DIVIDEND> (0.18)
<PER-SHARE-DISTRIBUTIONS> (1.27)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.86
<EXPENSE-RATIO> 0.61
</TABLE>
