<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0001014743
<NAME> THE THERMO OPPORTUNITY FUND, INC.
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> NOV-30-2000
<PERIOD-END> MAY-31-2000
<INVESTMENTS-AT-COST> 20,884,843
<INVESTMENTS-AT-VALUE> 20,948,085
<RECEIVABLES> 2,393
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 20,950,478
<PAYABLE-FOR-SECURITIES> 323,053
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 88,360
<TOTAL-LIABILITIES> 411,413
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 21,712,868
<SHARES-COMMON-STOCK> 1,588,217
<SHARES-COMMON-PRIOR> 1,755,417
<ACCUMULATED-NII-CURRENT> (138,212)
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (1,100,421)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 63,242
<NET-ASSETS> 20,539,065
<DIVIDEND-INCOME> 6
<INTEREST-INCOME> 192,670
<OTHER-INCOME> 0
<EXPENSES-NET> 330,888
<NET-INVESTMENT-INCOME> (138,212)
<REALIZED-GAINS-CURRENT> 1,357,747
<APPREC-INCREASE-CURRENT> 5,672,316
<NET-CHANGE-FROM-OPS> 6,891,851
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 4,793,130
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (2,458,168)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 78,635
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 330,888
<AVERAGE-NET-ASSETS> 19,847,759
<PER-SHARE-NAV-BEGIN> 8.97
<PER-SHARE-NII> (0.09)
<PER-SHARE-GAIN-APPREC> 4.05
<PER-SHARE-DIVIDEND> 0
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 12.93
<EXPENSE-RATIO> 3.33
</TABLE>