Arch Capital Group (NASDAQ: ACGL) reported quarterly earnings of $2.45 per share which beat the analyst consensus estimate of $2.10 by 16.67 percent. This is a 41.62 percent increase over earnings of $1.73 per share from the same period last year. The company reported quarterly sales of $3.42 billion which missed the analyst consensus estimate of $3.83 billion by 10.65 percent. This is a 18.70 percent increase over sales of $2.88 billion the same period last year.