Amkor Tech (NASDAQ:AMKR) reported quarterly earnings of $0.49 per share which missed the analyst consensus estimate of $0.50 by 2 percent. This is a 9.26 percent decrease over earnings of $0.54 per share from the same period last year. The company reported quarterly sales of $1.86 billion which beat the analyst consensus estimate of $1.84 billion by 1.20 percent. This is a 2.20 percent increase over sales of $1.82 billion the same period last year.