WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
MSDW Convertible Securities Trust
Class A
</LEGEND>
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> SEP-30-2000
<PERIOD-END> SEP-30-2000
<INVESTMENTS-AT-COST> 302,140,990
<INVESTMENTS-AT-VALUE> 305,627,407
<RECEIVABLES> 12,810,074
<ASSETS-OTHER> 46,742
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 318,484,223
<PAYABLE-FOR-SECURITIES> (8,894,998)
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> (654,619)
<TOTAL-LIABILITIES> (9,549,617)
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 326,082,570
<SHARES-COMMON-STOCK> 147,305
<SHARES-COMMON-PRIOR> 82,810
<ACCUMULATED-NII-CURRENT> 3,327,423
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (23,961,804)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 3,486,417
<NET-ASSETS> 2,537,509
<DIVIDEND-INCOME> 4,771,001
<INTEREST-INCOME> 9,487,805
<OTHER-INCOME> 0
<EXPENSES-NET> (5,143,525)
<NET-INVESTMENT-INCOME> 9,115,281
<REALIZED-GAINS-CURRENT> 48,588,509
<APPREC-INCREASE-CURRENT> 16,994,467
<NET-CHANGE-FROM-OPS> 74,698,257
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (173,194)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 2,234,888
<NUMBER-OF-SHARES-REDEEMED> (2,174,807)
<SHARES-REINVESTED> 4,414
<NET-CHANGE-IN-ASSETS> 73,413,077
<ACCUMULATED-NII-PRIOR> 6,220,842
<ACCUMULATED-GAINS-PRIOR> (72,550,313)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> (1,727,075)
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> (5,143,525)
<AVERAGE-NET-ASSETS> 2,248,507
<PER-SHARE-NAV-BEGIN> 13.57
<PER-SHARE-NII> 0.65
<PER-SHARE-GAIN-APPREC> 3.83
<PER-SHARE-DIVIDEND> (0.82)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 17.23
<EXPENSE-RATIO> 1.04
</TABLE>
