<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
financial statements for the six months ended June 30, 2000 and is qualified in
its entirety by reference in such statements.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<CASH> 149,226
<SECURITIES> 222,822
<RECEIVABLES> 0
<ALLOWANCES> 0
<INVENTORY> 0
<CURRENT-ASSETS> 383,024
<PP&E> 8,660
<DEPRECIATION> (5,192)
<TOTAL-ASSETS> 427,021
<CURRENT-LIABILITIES> 11,042
<BONDS> 0
0
0
<COMMON> 358
<OTHER-SE> 412,110
<TOTAL-LIABILITY-AND-EQUITY> 427,021
<SALES> 113
<TOTAL-REVENUES> 5,242
<CGS> 54
<TOTAL-COSTS> 23,219
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 2
<INCOME-PRETAX> (9,579)
<INCOME-TAX> 300
<INCOME-CONTINUING> (9,879)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> (9,879)
<EPS-BASIC> (0.28)
<EPS-DILUTED> (0.28)
</TABLE>