<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
The following information is extracted from and qualified by reference to
registrant's report on form N-SAR for the six months ended June 30, 2000 and the
unaudited financial statments included in the registrant's semi annual report to
shareholders.
</LEGEND>
<SERIES>
<NUMBER> 5
<NAME> ACORN FOREIGN FORTY
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<INVESTMENTS-AT-COST> 122288
<INVESTMENTS-AT-VALUE> 143542
<RECEIVABLES> 1199
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 144741
<PAYABLE-FOR-SECURITIES> 68
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 834
<TOTAL-LIABILITIES> 902
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 113032
<SHARES-COMMON-STOCK> 7313
<SHARES-COMMON-PRIOR> 5387
<ACCUMULATED-NII-CURRENT> (22)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 9882
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 20947
<NET-ASSETS> 143839
<DIVIDEND-INCOME> 737
<INTEREST-INCOME> 206
<OTHER-INCOME> 0
<EXPENSES-NET> 963
<NET-INVESTMENT-INCOME> (20)
<REALIZED-GAINS-CURRENT> 9924
<APPREC-INCREASE-CURRENT> (16843)
<NET-CHANGE-FROM-OPS> (6939)
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 221
<DISTRIBUTIONS-OF-GAINS> 809
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 5810
<NUMBER-OF-SHARES-REDEEMED> 3932
<SHARES-REINVESTED> 48
<NET-CHANGE-IN-ASSETS> 36488
<ACCUMULATED-NII-PRIOR> 219
<ACCUMULATED-GAINS-PRIOR> 767
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 664
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 964
<AVERAGE-NET-ASSETS> 136920
<PER-SHARE-NAV-BEGIN> 19.93
<PER-SHARE-NII> 0
<PER-SHARE-GAIN-APPREC> (.12)
<PER-SHARE-DIVIDEND> .03
<PER-SHARE-DISTRIBUTIONS> .11
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 19.67
<EXPENSE-RATIO> 1.37
</TABLE>
