MKS Instruments (MKSI) - Market capitalization

Market cap: £12.02 Billion

As of September 2026 MKS Instruments has a market cap of £12.02 Billion. This makes MKS Instruments the world's 1391th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.

Market cap history of MKS Instruments from 1999 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	£12.02 B	46.85%
2025	£8.18 B	43.81%
2024	£5.69 B	5.45%
2023	£5.40 B	15.94%
2022	£4.65 B	-34.91%
2021	£7.15 B	17.58%
2020	£6.08 B	32.87%
2019	£4.58 B	66.52%
2018	£2.75 B	-27.55%
2017	£3.79 B	47.15%
2016	£2.57 B	99.63%
2015	£1.29 B	3.43%
2014	£1.24 B	29.1%
2013	£0.96 B	15.05%
2012	£0.84 B	-10.37%
2011	£0.93 B	16.77%
2010	£0.80 B	50.98%
2009	£0.53 B	7.37%
2008	£0.49 B	-5.14%
2007	£0.52 B	-19.98%
2006	£0.65 B	15.76%
2005	£0.56 B	8.48%
2004	£0.52 B	-38.34%
2003	£0.84 B	60.67%
2002	£0.52 B	-25.88%
2001	£0.70 B	166.41%
2000	£0.26 B	-51.72%
1999	£0.55 B

End of Day market cap according to different sources

On Sep 15th, 2026 the market cap of MKS Instruments was reported to be:

£11.64 Billion

by Nasdaq

£11.64 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Ametek AME	£39.95 B	232.24%	🇺🇸 USA
Applied Materials AMAT	£249.42 B	1,974.02%	🇺🇸 USA
Lam Research LRCX	£253.91 B	2,011.31%	🇺🇸 USA
Roper Technologies ROP	£27.88 B	131.86%	🇺🇸 USA
Entegris ENTG	£15.06 B	25.26%	🇺🇸 USA
Cohu COHU	£1.78 B	-85.15%	🇺🇸 USA
Cognex CGNX	£7.55 B	-37.19%	🇺🇸 USA
Brooks Automation BRKS	£6.25 B	-48.00%	🇺🇸 USA
Advanced Energy AEIS	£7.63 B	-36.49%	🇺🇸 USA
ESCO Technologies ESE	£5.05 B	-57.94%	🇺🇸 USA

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of MKS Instruments (MKSI)

Market cap: £12.02 Billion