Extreme Networks (EXTR) - Market capitalization

Market cap: £2.91 Billion

As of July 2026 Extreme Networks has a market cap of £2.91 Billion. This makes Extreme Networks the world's 3693th 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 Extreme Networks from 1999 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	£2.91 B	74.18%
2025	£1.67 B	-6.86%
2024	£1.79 B	0.27%
2023	£1.79 B	-9.72%
2022	£1.98 B	32.44%
2021	£1.50 B	141.4%
2020	£0.62 B	-6.56%
2019	£0.66 B	18.64%
2018	£0.56 B	-46.61%
2017	£1.05 B	140.76%
2016	£0.43 B	53.55%
2015	£0.28 B	26.2%
2014	£0.22 B	-44.39%
2013	£0.40 B	91.95%
2012	£0.21 B	20.69%
2011	£0.17 B	-4.29%
2010	£0.18 B	15.27%
2009	£0.15 B	12.21%
2008	£0.14 B	-31.64%
2007	£0.20 B	-15.32%
2006	£0.24 B	-27.24%
2005	£0.33 B	-19.09%
2004	£0.41 B	-13.53%
2003	£0.47 B	102.63%
2002	£0.23 B	-76.8%
2001	£1.01 B	-64.08%
2000	£2.83 B	4.28%
1999	£2.72 B

End of Day market cap according to different sources

On Jul 4th, 2026 the market cap of Extreme Networks was reported to be:

£2.91 Billion

by Nasdaq

£2.91 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Cisco CSCO	£332.70 B	11,296.95%	🇺🇸 USA
HP HPQ	£15.02 B	414.61%	🇺🇸 USA
Juniper Networks JNPR	£10.00 B	242.78%	🇺🇸 USA
Motorola Solutions MSI	£52.55 B	1,700.27%	🇺🇸 USA
Infinera INFN	£1.18 B	-59.45%	🇺🇸 USA
Ericsson ERIC	£26.73 B	815.69%	🇸🇪 Sweden
ADTRAN ADTN	£0.77 B	-73.58%	🇺🇸 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 Extreme Networks (EXTR)

Market cap: £2.91 Billion