<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONDENSED CONSOLIDATED BALANCE SHEETS AND CONDENSED CONSOLIDATED STATEMENTS OF
OPERATIONS CONTAINED IN THE COMPANY'S QUARTERLY REPORT ON FORM 10-Q FOR THE
QUARTER ENDED SEPTEMBER 30, 1999 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE
TO SUCH FINANCIAL STATEMENTS AND THE NOTES THERETO.
</LEGEND>

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               SEP-30-1999
<CASH>                                          78,334
<SECURITIES>                                   151,658
<RECEIVABLES>                                    1,381
<ALLOWANCES>                                       355
<INVENTORY>                                      8,951
<CURRENT-ASSETS>                               266,624
<PP&E>                                          40,117
<DEPRECIATION>                                  19,772
<TOTAL-ASSETS>                                 294,564
<CURRENT-LIABILITIES>                           18,175
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            21
<OTHER-SE>                                     151,773
<TOTAL-LIABILITY-AND-EQUITY>                   294,564
<SALES>                                              0
<TOTAL-REVENUES>                                85,995
<CGS>                                                0
<TOTAL-COSTS>                                   37,827
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               4,348
<INCOME-PRETAX>                                 37,237
<INCOME-TAX>                                     1,791
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    35,446
<EPS-BASIC>                                     1.73
<EPS-DILUTED>                                     1.42