<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1995 <PERIOD-END> MAR-31-1995 <CASH> 68,387 <SECURITIES> 218,238 <RECEIVABLES> 12,518 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 308,785 <PP&E> 114,621 <DEPRECIATION> 33,166 <TOTAL-ASSETS> 400,258 <CURRENT-LIABILITIES> 39,451 <BONDS> 24,167 <COMMON> 332 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 336,308 <TOTAL-LIABILITY-AND-EQUITY> 400,258 <SALES> 31,953 <TOTAL-REVENUES> 35,970 <CGS> 2,504 <TOTAL-COSTS> 30,460 <OTHER-EXPENSES> 2,461 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 3,049 <INCOME-TAX> 215 <INCOME-CONTINUING> 2,834 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 2,834 <EPS-PRIMARY> 0.08 <EPS-DILUTED> 0.08