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NASDAQ · MKSITechnologyIndustrial Instruments

MKS Inc. Common Stock (MKSI)

$192.81−6.03%
Close Nov 4, 2026 · split-adjusted
Nov 3, 2026$205.18▲ 41.05% in range
Nov 3, 2025Low $137.20 · High $444.80Nov 3, 2026
What changed · written from our data
As of Nov 4, 2026

MKS closed at $192.81 on Nov 4, down 6.03%, 56.7% below its 52-week closing high. Volume of 1.1M shares was 0.82× its 20-day average (close to normal).

Split-adjusted performance: -31.5% over one month, -34.4% over six months, +32.5% over one year.

In the quarter ended Jun 30, 2026, revenue was $1.25B, up 28.3% from a year earlier, with a net margin of 14.0%.

Short interest was 4.9M shares at the Oct 15 settlement, down 3.5% from the prior report (7.3% of float, 3.7 days to cover).

Market cap$13.04B67.6M shares
Revenue · quarter$1.25B+28.3% YoY
Diluted EPS$2.41+162.0% YoY
P/E · TTM29.6×P/S 3.0×
Net margin14.0%Gross 47.7%
Dividend yield0.52%$0.25 last paid
52-week range137.20 – 444.80−56.7% from high
Volume1.1M0.82× 20-day avg
Volatility · 60d57.1%Annualised
Short % of float7.3%3.7 days to cover
Net cash-$3.33BCash $611.0M
Next earnings—Not scheduled
Split-adjusted performance
1W −11.7%1M −31.5%3M −33.8%6M −34.4%YTD +20.7%1Y +32.5%3Y +195.2%5Y +34.9%

Earnings reactions

History →

No reported quarters with price history yet.

Rank within Industrial Instruments

Percentile among 15 companies (100 = best)

6-month momentum14
Revenue growth69
Net margin57
Value (low P/E)75
Size64

Industry medians: 6-month return −2.7%, revenue growth +12.6%, net margin 11.4%, P/E 33.0×.

Short interest

Details →
Shares short4.9M−3.5% vs prior
Days to cover3.7Settled Oct 15
% of float7.3%
Short vol. 10d38.3%of daily volume

Closest peers by size in Industrial Instruments

CompanyPriceToday6MRev. growthNet marginP/EMkt cap
MKSIMKS$192.81−6.03%−34.4%+28.3%14.0%29.6$13.04B
CGNXCognex$54.32−6.53%−12.8%+16.9%25.0%52.3$9.14BCompare
FTVFortive$68.59+2.66%+13.6%+7.8%15.6%31.3$20.41BCompare
RALRalliant$71.23−0.11%+51.5%—10.1%—$7.88BCompare
STSensata Technologies Holding$40.88−1.83%−10.6%+7.7%11.4%16.2$5.95BCompare
KEYSKeysight Technologies$284.83−6.65%−22.3%+36.5%21.5%38.5$48.49BCompare
ROPRoper Technologies$490.61+3.60%+40.1%+7.6%22.3%18.7$48.52BCompare
AMEAmetek$234.92−5.50%−2.7%+17.3%19.2%33.0$53.86BCompare
DHRDanaher$234.34+1.84%+34.0%+8.3%18.8%38.0$164.73BCompare

News about MKS

All news →
MKS Commences Expansion of Guangzhou, China Equipment Manufacturing FacilityGlobeNewswire Inc. · 2d ago▲ PositiveMKSI Gears Up to Report Q3 Earnings: What's in Store for the Stock?Zacks Investment Research · 2d ago▲ PositiveWhy MKS (MKSI) is a Top Growth Stock for the Long-TermZacks Investment Research · 2d ago▲ PositiveAre Options Traders Betting on a Big Move in MKSI Stock?Zacks Investment Research · 4d ago▲ PositiveMKSI or ROK: Which Is the Better Value Stock Right Now?Zacks Investment Research · 5d ago▲ Positive

Quick answers

What does MKS do?
MKS Inc delivers foundational technology solutions for leading edge semiconductor manufacturing, electronics and packaging, and specialty industrial applications. The company provides instruments, components, subsystems, systems, process control solutions, and specialty chemicals technology that improve process performance and optimize productivity.
What is MKSI's market cap?
$13.04B, based on the Nov 4 close of $192.81.
What is MKSI's P/E ratio?
29.6× trailing-twelve-month earnings of $440M.
Does MKS pay a dividend?
Yes. The latest regular dividend was $0.25 per share (ex-date Aug 25), an annualised yield of 0.52%.
How much of MKSI is sold short?
4.9M shares, 7.3% of float, as of Oct 15, 2026.
What sector is MKSI in?
Technology, in the Industrial Instruments industry.

About MKS

MKS Inc delivers foundational technology solutions for leading edge semiconductor manufacturing, electronics and packaging, and specialty industrial applications. The company provides instruments, components, subsystems, systems, process control solutions, and specialty chemicals technology that improve process performance and optimize productivity. Its solutions address challenges of miniaturization and complexity in device manufacturing, enabling increased power, speed, and feature enhancement. MKS Inc operates through three divisions: Vacuum Solutions Division (VSD), Photonics Solutions Division (PSD), and Materials Solutions Division (MSD). The company operates in the United States, which generates maximum revenue, as well as China and other countries.

HQ: Andover, MA10,300 employeesListed Mar 30, 1999mksinst.com

Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology