<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 051
<NAME> WM VT INCOME FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<INVESTMENTS-AT-COST> 104,474,866
<INVESTMENTS-AT-VALUE> 102,695,415
<RECEIVABLES> 1,704,791
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 13,398,988
<TOTAL-ASSETS> 117,799,194
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 13,608,327
<TOTAL-LIABILITIES> 13,608,327
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 108,432,117
<SHARES-COMMON-STOCK> 11,123,081
<SHARES-COMMON-PRIOR> 5,944,229
<ACCUMULATED-NII-CURRENT> 102,509
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (2,564,308)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (1,779,451)
<NET-ASSETS> 104,190,867
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 3,256,633
<OTHER-INCOME> 3,889
<EXPENSES-NET> (331,698)
<NET-INVESTMENT-INCOME> 2,928,824
<REALIZED-GAINS-CURRENT> (76,724)
<APPREC-INCREASE-CURRENT> 227,811
<NET-CHANGE-FROM-OPS> 3,079,911
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (2,919,921)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 5,672,589
<NUMBER-OF-SHARES-REDEEMED> (807,208)
<SHARES-REINVESTED> 313,471
<NET-CHANGE-IN-ASSETS> 48,635,067
<ACCUMULATED-NII-PRIOR> 93,606
<ACCUMULATED-GAINS-PRIOR> (2,487,584)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 214,712
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 336,661
<AVERAGE-NET-ASSETS> 86,356,563
<PER-SHARE-NAV-BEGIN> 9.35
<PER-SHARE-NII> 0.28
<PER-SHARE-GAIN-APPREC> 0.03
<PER-SHARE-DIVIDEND> (0.29)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 9.37
<EXPENSE-RATIO> 0.77
</TABLE>