Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2012

Computation of basic and diluted earnings per share

The following table summarizes the computation of basic and diluted EPS:



	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2012			2011			2012			2011
	(In thousands, except per share data)
Net income attributable to Amkor	$	22,317		$	27,367		$	34,672		$	66,958
Income allocated to participating securities	(55		)	(106		)	(81		)	(259		)
Net income available to Amkor common stockholders	22,262			27,261			34,591			66,699
Adjustment for dilutive securities on net income:
Net income allocated to participating securities in basic calculation	55			106			81			259
Interest on 6.0% convertible notes due 2014, net of tax	4,026			4,026			12,077			12,077
Net income attributable to Amkor — diluted	$	26,343		$	31,393		$	46,749		$	79,035

Weighted average shares outstanding — basic	154,365			195,364			162,699			195,510
Effect of dilutive securities:
Stock options and restricted share awards	37			46			74			361
6.0% convertible notes due 2014	82,658			82,658			82,658			82,658
Weighted average shares outstanding — diluted	237,060			278,068			245,431			278,529
Net income attributable to Amkor per common share:
Basic	$	0.14		$	0.14		$	0.21		$	0.34
Diluted	0.11			0.11			0.19			0.28

Antidilutive effect of potential shares of common stock that were excluded from diluted earnings per share

The following table summarizes the potential shares of common stock that were excluded from diluted EPS, because the effect of including these potential shares was antidilutive:



	For the Three Months Ended September 30,		For the Nine Months Ended September 30,
	2012	2011	2012	2011
	(In thousands)
Stock options and restricted share awards	4,856	6,122	4,597	5,158
6.25% convertible notes due 2013	—	—	—	929
2.5% convertible notes due 2011	—	—	—	1,459
Total potentially dilutive shares	4,856	6,122	4,597	7,546