<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000809593
<NAME> AMERICAN AADVANTAGE SHORT-TERM BOND FUND-INST. CLASS
<SERIES>
<NUMBER> 031
<NAME> AMERICAN AADVANTAGE SHORT-TERM BOND-INST. CLASS
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> OCT-31-2000
<PERIOD-START> NOV-01-1999
<PERIOD-END> APR-30-2000
<INVESTMENTS-AT-COST> 0
<INVESTMENTS-AT-VALUE> 63245
<RECEIVABLES> 5
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 63250
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 88
<TOTAL-LIABILITIES> 88
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 76710
<SHARES-COMMON-STOCK> 466<F1>
<SHARES-COMMON-PRIOR> 541
<ACCUMULATED-NII-CURRENT> 15
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (11778)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (1785)
<NET-ASSETS> 63162
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 2416
<OTHER-INCOME> 0
<EXPENSES-NET> 122
<NET-INVESTMENT-INCOME> 2294
<REALIZED-GAINS-CURRENT> (577)
<APPREC-INCREASE-CURRENT> (580)
<NET-CHANGE-FROM-OPS> 1137
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 157
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 400
<NUMBER-OF-SHARES-REDEEMED> 485
<SHARES-REINVESTED> 10
<NET-CHANGE-IN-ASSETS> (10277)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 0
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 27
<AVERAGE-NET-ASSETS> 67996
<PER-SHARE-NAV-BEGIN> 9.30
<PER-SHARE-NII> .29
<PER-SHARE-GAIN-APPREC> (.14)
<PER-SHARE-DIVIDEND> .30
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.15
<EXPENSE-RATIO> .58
<FN>
<F1>INSTITUTIONAL CLASS. PER SHARE AMOUNTS ARE BY CLASS.
</FN>
</TABLE>
