Old Second Bancorp (NASDAQ:OSBC) reported quarterly earnings of $0.49 per share which missed the analyst consensus estimate of $0.51 by 3.92 percent. This is a 8.89 percent increase over earnings of $0.45 per share from the same period last year. The company reported quarterly sales of $98.346 million which beat the analyst consensus estimate of $93.208 million by 5.51 percent. This is a 34.53 percent increase over sales of $73.105 million the same period last year.