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MKS Instruments posts 86% EPS growth as margin pressure quietly builds

8/16/2026

$3.30 in non-GAAP earnings per share, up 86% year-over-year, was the number MKS Instruments (NASDAQ: MKSI) put on the board when it reported second-quarter results on August 6.

Revenue came in at $1.25 billion, a 28% YoY gain, and operating margin expanded 480 basis points to 25.6%.

On that same call, CFO Ram Mayampurath acknowledged that the company's equipment-heavy revenue mix is pressing gross margins, a tension that Q3 guidance does not resolve.

Segment read The $1.25 billion breaks cleanly across three lines.