MKS Instruments (NASDAQ:MKSI) reported quarterly earnings of $2.15 per share which beat the analyst consensus estimate of $1.95 by 10.26 percent. This is a 83.76 percent increase over earnings of $1.17 per share from the same period last year. The company reported quarterly sales of $935.00 million which beat the analyst consensus estimate of $914.18 million by 2.28 percent. This is a 4.70 percent increase over sales of $893.00 million the same period last year.