DexCom (NASDAQ:DXCM) reported quarterly earnings of $0.45 per share which missed the analyst consensus estimate of $0.50 by 10 percent. This is a 10 percent decrease over earnings of $0.50 per share from the same period last year. The company reported quarterly sales of $1.140 billion which beat the analyst consensus estimate of $1.104 billion by 3.22 percent. This is a 10.20 percent increase over sales of $1.034 billion the same period last year.