<TABLE> <S> <C>
<ARTICLE> 5
<RESTATED><F1>
<MULTIPLIER> 1,000
<S> <C> <C>
<PERIOD-TYPE> 3-MOS 6-MOS
<FISCAL-YEAR-END> DEC-31-2000 DEC-31-2000
<PERIOD-START> JAN-01-2000 JAN-01-2000
<PERIOD-END> MAR-31-2000 JUN-30-2000
<CASH> 19,837 20,124
<SECURITIES> 198,718 201,221
<RECEIVABLES> 53,925 56,374
<ALLOWANCES> (645) (644)
<INVENTORY> 31,468 36,431
<CURRENT-ASSETS> 309,330 319,151
<PP&E> 38,227 41,337
<DEPRECIATION> (20,153) (21,797)
<TOTAL-ASSETS> 345,086 356,440
<CURRENT-LIABILITIES> 37,511 33,806
<BONDS> 135,000 135,000
0 0
0 0
<COMMON> 31 31
<OTHER-SE> 171,111 186,306
<TOTAL-LIABILITY-AND-EQUITY> 345,086 356,440
<SALES> 75,028 160,730
<TOTAL-REVENUES> 75,028 160,730
<CGS> 38,361 81,700
<TOTAL-COSTS> 38,361 81,700
<OTHER-EXPENSES> 19,619 41,639
<LOSS-PROVISION> 0 0
<INTEREST-EXPENSE> 2,029 4,119
<INCOME-PRETAX> 17,168 38,243
<INCOME-TAX> 5,947 13,972
<INCOME-CONTINUING> 11,238 24,355
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> 11,238 24,355
<EPS-BASIC> 0.36 0.78
<EPS-DILUTED> 0.35 0.75
<FN>
<F1>Restated per pooling merger of Advanced Energy & Sekidenko, Inc. in Q3 2000.
</FN>
</TABLE>