WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000730462
<NAME> WAYNE HUMMER INVESTMENT TRUST
<SERIES>
<NUMBER> 4
<NAME> WAYNE HUMMER MONEY MARKET FUND
<MULTIPLIER> 1
<CURRENCY>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> MAR-31-2000
<PERIOD-START> APR-01-2000
<PERIOD-END> SEP-30-2000
<EXCHANGE-RATE> 1
<INVESTMENTS-AT-COST> 348,955,108
<INVESTMENTS-AT-VALUE> 348,955,108
<RECEIVABLES> 5,012,131
<ASSETS-OTHER> 258,225
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 354,225,464
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3,383,533
<TOTAL-LIABILITIES> 3,383,533
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 350,841,931
<SHARES-COMMON-STOCK> 350,841,931
<SHARES-COMMON-PRIOR> 361,186,629
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 350,841,931
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 11,534,618
<OTHER-INCOME> 0
<EXPENSES-NET> 1,293,921
<NET-INVESTMENT-INCOME> 10,240,697
<REALIZED-GAINS-CURRENT> 0
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 10,240,697
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 10,240,697
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 419,526,354
<NUMBER-OF-SHARES-REDEEMED> 439,682,702
<SHARES-REINVESTED> 9,811,645
<NET-CHANGE-IN-ASSETS> 10,344,698
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 893,333
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 1,293,921
<AVERAGE-NET-ASSETS> 356,293,394
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .03
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> .03
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> 0.73
</TABLE>
