12. MKS Instruments ( MKSI) produces instruments used to measure and isolate gases in the manufacture of semiconductors and other products. The company has three main product groups: Instruments and Control Systems, Power and Reactive Gas Products and Vacuum Products. MKS plans to report second-quarter results July 20. Analysts surveyed by Bloomberg expect the company to report sales of $220.7 million, little changed from $220.6 million a year earlier. Net income for the quarter is seen at $33.75 million, or 63 cents per share, compared with $33.37 million, or 65 cents. Gross margins for the quarter is estimated at 45% vs. 44.1%. Of the five analysts covering the stock, 60% rate it a "buy" and 20% rate it a "hold." Analysts polled by Bloomberg expect the stock to gain an average of 7.5% to $28.50 in the upcoming 12 months. In mid-June, the company paid its authorized quarterly cash dividend of 15 cents per share.