Alcoa (NYSE:AA) reported quarterly earnings of $2.12 per share which missed the analyst consensus estimate of $2.25 by 5.78 percent. This is a 443.59 percent increase over earnings of $0.39 per share from the same period last year. The company reported quarterly sales of $3.966 billion which beat the analyst consensus estimate of $3.939 billion by 0.67 percent. This is a 31.41 percent increase over sales of $3.018 billion the same period last year.