Power Integrations (POWI) - Market capitalization

Market cap: £1.81 Billion

As of January 2026 Power Integrations has a market cap of £1.81 Billion. This makes Power Integrations the world's 4407th 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 Power Integrations from 1997 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	£1.81 B	16.94%
2025	£1.55 B	-45.58%
2024	£2.85 B	-22.1%
2023	£3.66 B	8.07%
2022	£3.39 B	-18.33%
2021	£4.15 B	15.49%
2020	£3.59 B	61.94%
2019	£2.21 B	59.96%
2018	£1.38 B	-14.18%
2017	£1.61 B	0.93%
2016	£1.60 B	70.42%
2015	£0.94 B	-3.14%
2014	£0.97 B	-4.46%
2013	£1.01 B	71.21%
2012	£0.59 B	-0.85%
2011	£0.59 B	-18.93%
2010	£0.73 B	20.44%
2009	£0.61 B	54.12%
2008	£0.39 B	-23.69%
2007	£0.52 B	51.77%
2006	£0.34 B	-15.31%
2005	£0.40 B	29.06%
2004	£0.31 B	-44.77%
2003	£0.56 B	87.39%
2002	£0.30 B	-31.21%
2001	£0.44 B	108.77%
2000	£0.21 B	-73.08%
1999	£0.78 B	316.86%
1998	£0.18 B	177.06%
1997	£67.98 M

End of Day market cap according to different sources

On Jan 16th, 2026 the market cap of Power Integrations was reported to be:

£1.79 Billion

by Nasdaq

£1.81 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Monolithic Power Systems MPWR	£37.00 B	1,936.82%	🇺🇸 USA
STMicroelectronics STM	£18.62 B	925.14%	🇨🇭 Switzerland
NXP Semiconductors NXPI	£44.69 B	2,359.98%	🇳🇱 Netherlands
Cirrus Logic CRUS	£4.72 B	160.27%	🇺🇸 USA
Diodes Incorporated DIOD	£1.97 B	8.75%	🇺🇸 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 Power Integrations (POWI)

Market cap: £1.81 Billion