ArcelorMittal (MT) - Market capitalization

Market cap: £36.98 Billion

As of February 2026 ArcelorMittal has a market cap of £36.98 Billion. This makes ArcelorMittal the world's 496th 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 ArcelorMittal from 1997 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	£36.98 B	41.6%
2025	£26.12 B	82.12%
2024	£14.34 B	-21.57%
2023	£18.28 B	3.41%
2022	£17.68 B	-17.81%
2021	£21.51 B	19.43%
2020	£18.01 B	33.22%
2019	£13.52 B	-18.38%
2018	£16.56 B	-32.15%
2017	£24.42 B	32.9%
2016	£18.37 B	278.39%
2015	£4.85 B	-58.65%
2014	£11.74 B	-34.59%
2013	£17.95 B	9.51%
2012	£16.39 B	-58.32%
2011	£39.33 B	2.02%
2010	£38.55 B	-12.63%
2009	£44.13 B	92.55%
2008	£22.91 B	-58.59%
2007	£55.34 B	84.61%
2006	£29.98 B	178.9%
2005	£10.75 B	-16.93%
2004	£12.94 B	2043.74%
2003	£0.60 B	255.12%
2002	£0.16 B	10.89%
2001	£0.15 B	-19.94%
2000	£0.19 B	-84.89%
1999	£1.26 B	114.12%
1998	£0.59 B	-64.6%
1997	£1.67 B

End of Day market cap according to different sources

On Feb 23rd, 2026 the market cap of ArcelorMittal was reported to be:

£38.03 Billion

by Nasdaq

£37.91 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Commercial Metals Company CMC	£6.15 B	-83.35%	🇺🇸 USA
Nucor NUE	£29.93 B	-19.07%	🇺🇸 USA
POSCO PKX	£15.52 B	-58.02%	🇰🇷 S. Korea
Ternium TX	£6.21 B	-83.19%	🇱🇺 Luxembourg
Vale VALE	£53.93 B	45.81%	🇧🇷 Brazil
U.S. Steel X	£9.19 B	-75.15%	🇺🇸 USA
Companhia Siderúrgica Nacional SID	£1.65 B	-95.51%	🇧🇷 Brazil
Gerdau GGB	£5.98 B	-83.81%	🇧🇷 Brazil
Cleveland-Cliffs CLF	£4.56 B	-87.65%	🇺🇸 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 ArcelorMittal (MT)

Market cap: £36.98 Billion