
<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5

<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               DEC-31-1999
<CASH>                                      74,779,900
<SECURITIES>                                86,937,300
<RECEIVABLES>                               11,846,900
<ALLOWANCES>                                   780,000
<INVENTORY>                                          0
<CURRENT-ASSETS>                           174,138,000
<PP&E>                                      13,021,000
<DEPRECIATION>                               3,619,800
<TOTAL-ASSETS>                             242,081,400
<CURRENT-LIABILITIES>                       16,195,300
<BONDS>                                        705,200
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        16,200
<OTHER-SE>                                 225,143,400
<TOTAL-LIABILITY-AND-EQUITY>               242,081,400
<SALES>                                              0
<TOTAL-REVENUES>                            26,962,400
<CGS>                                                0
<TOTAL-COSTS>                               85,433,000
<OTHER-EXPENSES>                           (3,374,600)
<LOSS-PROVISION>                               780,000
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                           (55,096,000)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                       (55,096,000)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                              (55,755,600)
<EPS-BASIC>                                     (5.30)
<EPS-DILUTED>                                   (5.30)


</TABLE>
