MKS Inc.

MKSI · NasdaqGS · Stock · Technology
$236.62
-4.42% today
Delayed price,

What MKS does

MKS Inc. provides foundational technology solutions to semiconductor manufacturing, electronics and packaging, and specialty industrial applications in the United States, China, South Korea, Japan, Taiwan, Singapore, and internationally. The company operates through Vacuum Solutions Division (VSD), Photonics Solutions Division (PSD), and Material Solutions Division (MSD) segments. Its VSD segment provides foundational technology solutions, including pressure measurement and control, flow measurement and control, gas and vapor delivery, gas composition analysis, electronic control technology, reactive gas generation and delivery, power generation and delivery, and fiber optic temperature and position sensing. The PSD segment offers range of solutions, which include lasers, photonics, optics, precision motion control, and vibration control. Its MSD segment develops, process, and manufactures technologies comprising advanced surface modification, electroless and electrolytic plating, and surface finishing for chemistry, equipment, and services markets, as well as high-technology applications. In addition, the company sells its products and services through direct sales, network of independent distributors, and sales representatives, as well as websites, including product catalogs. MKS Inc. was formerly known as MKS Instruments, Inc. and changed its name to MKS Inc. in May 2025. The company was incorporated in 1961 and is based in Andover, Massachusetts.

Key facts

Sector
Technology
Industry
Scientific & Technical Instruments
Market cap
$16.00B
P/E (ttm)
37.6
Forward P/E
13.5
Dividend yield
0.40%
Beta
2.02
Profit margin
10.1%
Employees
10,200
Headquarters
Andover, MA, United States
Exchange
NasdaqGS

Performance

1 Month
-6.1%
3 Months
-27.1%
6 Months
-15.1%
1 Year
+73.3%
5 Years
+55.5%
$130.7252-week range$447.62
Biggest setback — last 12 months
-41.8%
15 Jun 2026 → 14 Oct 2026
Fell from $406.37 to $236.62 — its sharpest sustained decline this year.
Biggest run-up — last 12 months
+197.7%
13 Oct 2025 → 15 Jun 2026
Ran from $136.52 to $406.37 — its strongest sustained advance this year.

Price outlook — trend & volatility model

▼ Trend: Downtrend
Price is below its 20-, 50- and 200-day averages, each stacked below the next — a classic technical downtrend structure.
HorizonBear case (−1σ)Base caseBull case (+1σ)
1 Month$197.46 (-16.5%)$236.62$283.54 (+19.8%)
3 Months$172.96 (-26.9%)$236.62$323.69 (+36.8%)
6 Months$151.91 (-35.8%)$236.62$368.56 (+55.8%)
12 Months$126.43 (-46.6%)$236.62$442.82 (+87.1%)
Statistical, not machine-learning: a random-walk (no assumed drift) volatility model built from this ticker's own realized price history, plus a purely descriptive moving-average trend read. Illustrative only — not a price target and not financial advice. The bear and bull cases sit one standard deviation (1σ) below and above today's price, a range that covers about 68% of the outcomes the model treats as plausible, not a 68% chance of either case. Annualized volatility used: 62.7%, blended from this ticker's own 3-month and 1-year realized price history. Base case is deliberately flat — this quantifies a possible range, not a directional prediction. See the full model, including wider (≈95%) bands →

Comparable companies

Recent headlines

Recent insider activity

Sold 300 shares at $250.96 — Mora Elizabeth, Director · 2026-09-02
Acquired 954 shares — Donlan Renee Martel, EVP, GC & CCO · 2026-08-18
Sold 10,000 shares at $302.01 — Lee John Tseng-Chung, President & CEO · 2026-08-17
Sold 457 shares at $288.31 — Williams John Edward, EVP & GM, PSD · 2026-08-04
Sold 3,500 shares at $347.00 — Schreiner James Alan, EVP & COO · 2026-06-16
Source: SEC Form 4 filings. An "acquired" entry with no price is typically a stock award or option exercise rather than an open-market purchase. Search all insider trades →

Learn the basics

Prices and company data are delayed reference figures from public sources (Yahoo Finance, SEC EDGAR) and may be inaccurate or out of date. This page is informational only — it is not investment advice or a recommendation to buy or sell any security. Past performance does not indicate future results.