MKS Instruments: Q1 Earnings Snapshot April 26, 2021 FacebookTwitterEmail ANDOVER, Mass. (AP) _ MKS Instruments Inc. (MKSI) on Monday reported first-quarter profit of $122.3 million. On a per-share basis, the Andover, Massachusetts-based company said it had profit of $2.20. Earnings, adjusted for non-recurring costs, came to $2.56 per share. The results exceeded Wall Street expectations. The average estimate of four analysts surveyed by Zacks Investment Research was for earnings of $2.17 per share. The maker of analysis and processing equipment for semiconductor companies posted revenue of $693.9 million in the period. For the current quarter ending in July, MKS Instruments expects its per-share earnings to range from $2.66 to $3.18.