<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000832545
<NAME> BARR ROSENBERG SERIES TRUST
<SERIES>
<NUMBER> 062
<NAME> AXA ROSENBERG SELECT SECTORS MARKET NEUTRAL FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-2001
<PERIOD-START> APR-01-2000
<PERIOD-END> SEP-30-2000
<INVESTMENTS-AT-COST> 18153560
<INVESTMENTS-AT-VALUE> 19139595
<RECEIVABLES> 1271675
<ASSETS-OTHER> 18537350
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 38948620
<PAYABLE-FOR-SECURITIES> 400287
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 19214572
<TOTAL-LIABILITIES> 19614859
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 19445605
<SHARES-COMMON-STOCK> 5720<F1>
<SHARES-COMMON-PRIOR> 82327<F1>
<ACCUMULATED-NII-CURRENT> 886739
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 1822276
<ACCUM-APPREC-OR-DEPREC> 823693
<NET-ASSETS> 19333761
<DIVIDEND-INCOME> 141528
<INTEREST-INCOME> 671569
<OTHER-INCOME> 0
<EXPENSES-NET> 239903
<NET-INVESTMENT-INCOME> 573194
<REALIZED-GAINS-CURRENT> 681332
<APPREC-INCREASE-CURRENT> (2609676)
<NET-CHANGE-FROM-OPS> (1355150)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0<F1>
<DISTRIBUTIONS-OF-GAINS> 0<F1>
<DISTRIBUTIONS-OTHER> 0<F1>
<NUMBER-OF-SHARES-SOLD> 45162
<NUMBER-OF-SHARES-REDEEMED> 806425
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> (9405382)
<ACCUMULATED-NII-PRIOR> 313545
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 2503608
<GROSS-ADVISORY-FEES> 109443
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 302942
<AVERAGE-NET-ASSETS> 305263<F1>
<PER-SHARE-NAV-BEGIN> 10.99<F1>
<PER-SHARE-NII> 0.25<F1>
<PER-SHARE-GAIN-APPREC> (0.80)<F1>
<PER-SHARE-DIVIDEND> 0.00<F1>
<PER-SHARE-DISTRIBUTIONS> 0.00<F1>
<RETURNS-OF-CAPITAL> 0.00<F1>
<PER-SHARE-NAV-END> 10.44<F1>
<EXPENSE-RATIO> 1.52<F1>
<FN>
<F1> Investor Shares
</FN>
</TABLE>
