v3.25.2
Earnings Per Share
 6 Months Ended
Jun. 30, 2025
Earnings Per Share [Abstract]  
Earnings Per Share Earnings Per Share
Basic earnings per share (“EPS”) is computed by dividing net income attributable to Amkor common stockholders by the weighted-average number of common shares outstanding during the period. The weighted-average number of common shares outstanding is reduced for treasury stock.
Diluted EPS is computed based on the weighted-average number of common shares outstanding plus the effect of dilutive potential common shares outstanding during the period. Dilutive potential common shares include outstanding stock options, performance-vested restricted stock units (“PSUs”) and time-vested restricted stock units (“RSUs”).
The following table summarizes the computation of basic and diluted EPS:
For the Three Months Ended June 30,For the Six Months Ended June 30,
 2025202420252024
 (In thousands,
except per share data)
Net income attributable to Amkor common stockholders$54,417 $66,897 $75,545 $125,794 
Weighted-average number of common shares outstanding - basic247,090 246,228 246,973 246,118 
Effect of dilutive securities:    
Share-based awards716 1,632 869 1,672 
Weighted-average number of common shares outstanding - diluted247,806 247,860 247,842 247,790 
Net income attributable to Amkor per common share:    
Basic$0.22 $0.27 $0.31 $0.51 
Diluted0.22 0.27 0.30 0.51 
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 anti-dilutive:
For the Three Months Ended June 30,For the Six Months Ended June 30,
 2025202420252024
 (In thousands)
Share-based awards984 — 378 —