MKS Instruments (MKSI) shares ended the last trading session 5.6% higher at $125.90. The jump came on an impressive volume with a higher-than-average number of shares changing hands in the session. This compares to the stock's 10.1% loss over the past four weeks.MKS Instruments is benefiting from strong portfolio and prudent cost control. It is gaining from the growing adoption of its solutions which are used in the majority of the steps needed to manufacture a semiconductor chip.This maker of analysis and ...