ON Semiconductor (ON) - Market capitalization

Market cap: £18.87 Billion

As of January 2026 ON Semiconductor has a market cap of £18.87 Billion. This makes ON Semiconductor the world's 947th 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 ON Semiconductor from 2000 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	£18.87 B	13.15%
2025	£16.68 B	-25.52%
2024	£22.39 B	-20.69%
2023	£28.23 B	26.67%
2022	£22.29 B	2.84%
2021	£21.67 B	119.54%
2020	£9.87 B	29.12%
2019	£7.64 B	42.07%
2018	£5.38 B	-18.1%
2017	£6.57 B	52.41%
2016	£4.31 B	58.24%
2015	£2.72 B	-3.53%
2014	£2.82 B	28.43%
2013	£2.19 B	12.34%
2012	£1.95 B	-12.37%
2011	£2.23 B	-20.09%
2010	£2.79 B	20.04%
2009	£2.32 B	144.35%
2008	£0.95 B	-27.14%
2007	£1.30 B	18.19%
2006	£1.10 B	11.09%
2005	£0.99 B	65.33%
2004	£0.60 B	-23.46%
2003	£0.78 B	422.15%
2002	£0.15 B	-39.54%
2001	£0.24 B	-58.96%
2000	£0.60 B

End of Day market cap according to different sources

On Jan 11th, 2026 the market cap of ON Semiconductor was reported to be:

£18.57 Billion

by Nasdaq

£18.87 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Micron Technology MU	£288.36 B	1,427.83%	🇺🇸 USA
Altair Engineering ALTR	£7.15 B	-62.11%	🇺🇸 USA
Maxim Integrated MXIM	£20.56 B	8.96%	🇺🇸 USA
MaxLinear MXL	£1.23 B	-93.47%	🇺🇸 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 ON Semiconductor (ON)

Market cap: £18.87 Billion