<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000741375
<NAME> MAS FUNDS
<SERIES>
<NUMBER> 29
<NAME> ADVISORY FOREIGN FIXED INCOME PORTFOLIO
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> SEP-30-2000
<PERIOD-START> OCT-01-1999
<PERIOD-END> MAR-31-2000
<INVESTMENTS-AT-COST> 13,778
<INVESTMENTS-AT-VALUE> 12,889
<RECEIVABLES> 244
<ASSETS-OTHER> 18
<OTHER-ITEMS-ASSETS> 401
<TOTAL-ASSETS> 13,552
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1,130
<TOTAL-LIABILITIES> 1,130
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 12,480
<SHARES-COMMON-STOCK> 3,413
<SHARES-COMMON-PRIOR> 3,722
<ACCUMULATED-NII-CURRENT> 71
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 451
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (580)
<NET-ASSETS> 12,422
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 340
<OTHER-INCOME> 0
<EXPENSES-NET> (10)
<NET-INVESTMENT-INCOME> 330
<REALIZED-GAINS-CURRENT> 451
<APPREC-INCREASE-CURRENT> (406)
<NET-CHANGE-FROM-OPS> 375
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (1,111)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> (590)
<SHARES-REINVESTED> 281
<NET-CHANGE-IN-ASSETS> (1,900)
<ACCUMULATED-NII-PRIOR> 852
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 26
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 10
<AVERAGE-NET-ASSETS> 13,848
<PER-SHARE-NAV-BEGIN> 3.85
<PER-SHARE-NII> 0.10
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> (0.31)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 3.64
<EXPENSE-RATIO> 0.15
</TABLE>
