WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information extracted from the
semi-annual report dated June 30, 2000 and is qualified in its
entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000908187
<NAME> PIMCO COMMERCIAL MORTAGE SECURITIES TRUST, INC.
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 06-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<INVESTMENTS-AT-COST> 215365
<INVESTMENTS-AT-VALUE> 206319
<RECEIVABLES> 3223
<ASSETS-OTHER> 86
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 209628
<PAYABLE-FOR-SECURITIES> 663
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 68275
<TOTAL-LIABILITIES> 68938
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 152282
<SHARES-COMMON-STOCK> 11010
<SHARES-COMMON-PRIOR> 11009
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 678
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 1951
<ACCUM-APPREC-OR-DEPREC> (8963)
<NET-ASSETS> 140690
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 9090
<OTHER-INCOME> 0
<EXPENSES-NET> 2758
<NET-INVESTMENT-INCOME> 6332
<REALIZED-GAINS-CURRENT> (996)
<APPREC-INCREASE-CURRENT> (312)
<NET-CHANGE-FROM-OPS> 5024
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (6194)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> (1170)
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 817
<OVERDIST-NET-GAINS-PRIOR> 955
<GROSS-ADVISORY-FEES> 507
<INTEREST-EXPENSE> 2043
<GROSS-EXPENSE> 2758
<AVERAGE-NET-ASSETS> 139845
<PER-SHARE-NAV-BEGIN> 12.89
<PER-SHARE-NII> 0.58
<PER-SHARE-GAIN-APPREC> (0.13)
<PER-SHARE-DIVIDEND> (0.56)
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 12.78
<EXPENSE-RATIO> 3.95
</TABLE>
