CMS Energy (CMS) - Market capitalization

Market cap: £17.74 Billion

As of March 2026 CMS Energy has a market cap of £17.74 Billion. This makes CMS Energy the world's 1037th 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 CMS Energy from 1996 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	£17.74 B	12.23%
2025	£15.80 B	-0.99%
2024	£15.96 B	20.06%
2023	£13.29 B	-12.47%
2022	£15.19 B	8.83%
2021	£13.96 B	8.93%
2020	£12.81 B	-5.8%
2019	£13.60 B	22.73%
2018	£11.08 B	12.46%
2017	£9.85 B	4.4%
2016	£9.44 B	39.89%
2015	£6.74 B	9.87%
2014	£6.14 B	42.23%
2013	£4.31 B	8.41%
2012	£3.98 B	10.59%
2011	£3.60 B	19.77%
2010	£3.00 B	36.36%
2009	£2.20 B	41.34%
2008	£1.56 B	-20.76%
2007	£1.96 B	4.75%
2006	£1.87 B	1.21%
2005	£1.85 B	75%
2004	£1.06 B	38.33%
2003	£0.76 B	-9.56%
2002	£0.84 B	-61.65%
2001	£2.21 B	-13.8%
2000	£2.56 B	14.58%
1999	£2.23 B	-34.04%
1998	£3.39 B	16.12%
1997	£2.92 B	45%
1996	£2.01 B

End of Day market cap according to different sources

On Feb 28th, 2026 the market cap of CMS Energy was reported to be:

£17.74 Billion

by Nasdaq

£17.74 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Alliant Energy LNT	£13.79 B	-22.27%	🇺🇸 USA
Ameren AEE	£23.22 B	30.88%	🇺🇸 USA
DTE Energy DTE	£22.84 B	28.77%	🇺🇸 USA
Exelon Corporation EXC	£37.53 B	111.53%	🇺🇸 USA
WEC Energy Group WEC	£28.23 B	59.12%	🇺🇸 USA
Xcel Energy XEL	£36.57 B	106.13%	🇺🇸 USA
MGE Energy MGEE	£2.22 B	-87.47%	🇺🇸 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 CMS Energy (CMS)

Market cap: £17.74 Billion