<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE BALANCE
SHEET AND STATEMENT OF OPERATIONS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 24,598,000
<SECURITIES> 74,642,000
<RECEIVABLES> 269,000
<ALLOWANCES> 0
<INVENTORY> 0
<CURRENT-ASSETS> 37,704,000
<PP&E> 1,546,000
<DEPRECIATION> (1,308,000)
<TOTAL-ASSETS> 39,207,000
<CURRENT-LIABILITIES> 16,357,000
<BONDS> 0
0
3,500,000
<COMMON> 43,000
<OTHER-SE> 19,118,000<F1>
<TOTAL-LIABILITY-AND-EQUITY> 39,207,000
<SALES> 0
<TOTAL-REVENUES> 23,751,000
<CGS> 0
<TOTAL-COSTS> 11,446,000
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> 15,158,000
<INCOME-TAX> 0
<INCOME-CONTINUING> 0
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 15,158,000
<EPS-BASIC> 0.36
<EPS-DILUTED> 0.35
<FN>
<F1>ADDITIONAL PAID-IN-CAPITAL -- $ 274,078,000
ACCUMULATED DEFICIT -- $(254,600,000)
ACCUMULATED OTHER COMPREHENSIVE INCOME -- $ (360,000)
</FN>
</TABLE>