<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from the N-SAR
answer file for the twelve months ending September 30, 2000 and is qualified in
its entirety by reference to the N-SAR answer file for the twelve months ending
September 30, 2000 for the Bernstein Government Short Duration Portfolio.
</LEGEND>
<SERIES>
<NUMBER> 01
<NAME> BERNSTEIN GOVERNMENT SHORT DURATION
<MULTIPLIER> 1
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> SEP-30-2000
<PERIOD-END> SEP-30-2000
<INVESTMENTS-AT-COST> 103,701,144
<INVESTMENTS-AT-VALUE> 103,588,187
<RECEIVABLES> 5,336,550
<ASSETS-OTHER> 446<F1>
<OTHER-ITEMS-ASSETS> 1,341
<TOTAL-ASSETS> 108,926,524
<PAYABLE-FOR-SECURITIES> 12,713,748
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 595,466
<TOTAL-LIABILITIES> 13,309,214
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 97,542,920
<SHARES-COMMON-STOCK> 7,653,856
<SHARES-COMMON-PRIOR> 10,237,664
<ACCUMULATED-NII-CURRENT> 55,344
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (1,875,651)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (112,957)
<NET-ASSETS> 95,617,310
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 6,343,042
<OTHER-INCOME> 0
<EXPENSES-NET> 806,984
<NET-INVESTMENT-INCOME> 5,536,058
<REALIZED-GAINS-CURRENT> (745,238)
<APPREC-INCREASE-CURRENT> 734,356
<NET-CHANGE-FROM-OPS> 5,525,176
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 5,536,058
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 5,436,175
<NUMBER-OF-SHARES-REDEEMED> 8,197,796
<SHARES-REINVESTED> 177,813
<NET-CHANGE-IN-ASSETS> (31,980,580)
<ACCUMULATED-NII-PRIOR> 55,344
<ACCUMULATED-GAINS-PRIOR> (1,130,413)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 564,565
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 806,984
<AVERAGE-NET-ASSETS> 112,821,560
<PER-SHARE-NAV-BEGIN> 12.46
<PER-SHARE-NII> 0.61
<PER-SHARE-GAIN-APPREC> 0.03
<PER-SHARE-DIVIDEND> 0.61
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 12.49
<EXPENSE-RATIO> 0.72
<FN>
<F1>Includes Cash and Currency
</FN>
</TABLE>
