<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000811869
<NAME> THE AAL MUTUAL FUNDS
<SERIES>
   <NUMBER> 072
   <NAME> THE AAL MIDCAP STOCK FUND CLASS B
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          APR-30-1998
<PERIOD-START>                             MAY-01-1997
<PERIOD-END>                               OCT-31-1997
<INVESTMENTS-AT-COST>                      518,519,099
<INVESTMENTS-AT-VALUE>                     601,738,456
<RECEIVABLES>                                6,258,619
<ASSETS-OTHER>                                 117,709
<OTHER-ITEMS-ASSETS>                           367,336
<TOTAL-ASSETS>                             608,482,120
<PAYABLE-FOR-SECURITIES>                     7,425,344
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      814,597
<TOTAL-LIABILITIES>                          8,239,941
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                   458,270,115
<SHARES-COMMON-STOCK>                          511,474
<SHARES-COMMON-PRIOR>                          257,783
<ACCUMULATED-NII-CURRENT>                    (644,928)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                     59,397,635
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    83,219,357
<NET-ASSETS>                               600,242,179
<DIVIDEND-INCOME>                            2,185,369
<INTEREST-INCOME>                              840,283
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               3,694,180
<NET-INVESTMENT-INCOME>                      (668,528)
<REALIZED-GAINS-CURRENT>                    36,575,430
<APPREC-INCREASE-CURRENT>                   84,118,835
<NET-CHANGE-FROM-OPS>                      120,025,737
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        261,359
<NUMBER-OF-SHARES-REDEEMED>                    (7,668)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     135,238,649
<ACCUMULATED-NII-PRIOR>                         23,600
<ACCUMULATED-GAINS-PRIOR>                   22,822,205
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        1,949,065
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              3,694,180
<AVERAGE-NET-ASSETS>                         5,812,368
<PER-SHARE-NAV-BEGIN>                            12.69
<PER-SHARE-NII>                                (0.063)
<PER-SHARE-GAIN-APPREC>                          3.263
<PER-SHARE-DIVIDEND>                             0.000
<PER-SHARE-DISTRIBUTIONS>                        0.000
<RETURNS-OF-CAPITAL>                             0.000
<PER-SHARE-NAV-END>                              15.89
<EXPENSE-RATIO>                                   2.14
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>