Arch Capital Group (NASDAQ:ACGL) reported quarterly earnings of $2.56 per share which beat the analyst consensus estimate of $2.43 by 5.35 percent. This is a 0.78 percent decrease over earnings of $2.58 per share from the same period last year. The company reported quarterly sales of $3.985 billion which missed the analyst consensus estimate of $4.438 billion by 10.21 percent. This is a 8.12 percent decrease over sales of $4.337 billion the same period last year.