<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0001058265
<NAME> BARR ROSENBERG VARIABLE INSURANCE TRUST
<SERIES>
<NUMBER> 01
<NAME> BARR ROSENBERG VIT MARKET NEUTRAL FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<INVESTMENTS-AT-COST> 3158698
<INVESTMENTS-AT-VALUE> 3363001
<RECEIVABLES> 41488
<ASSETS-OTHER> 3302011
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 6706500
<PAYABLE-FOR-SECURITIES> 3225224
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 54084
<TOTAL-LIABILITIES> 3279308
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 4094924
<SHARES-COMMON-STOCK> 410000
<SHARES-COMMON-PRIOR> 410000
<ACCUMULATED-NII-CURRENT> 147423
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 857776
<ACCUM-APPREC-OR-DEPREC> 42621
<NET-ASSETS> 3427192
<DIVIDEND-INCOME> 127961
<INTEREST-INCOME> 0
<OTHER-INCOME> 0
<EXPENSES-NET> 52221
<NET-INVESTMENT-INCOME> 75740
<REALIZED-GAINS-CURRENT> (661828)
<APPREC-INCREASE-CURRENT> 69644
<NET-CHANGE-FROM-OPS> (516444)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> (516444)
<ACCUMULATED-NII-PRIOR> 71683
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 195948
<GROSS-ADVISORY-FEES> 33918
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 139255
<AVERAGE-NET-ASSETS> 3589919
<PER-SHARE-NAV-BEGIN> 9.62
<PER-SHARE-NII> 0.18
<PER-SHARE-GAIN-APPREC> (1.44)
<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 8.36
<EXPENSE-RATIO> 2.00
</TABLE>
