Steel Dynamics (STLD) - Market capitalization

Market cap: £18.34 Billion

As of December 2025 Steel Dynamics has a market cap of £18.34 Billion. This makes Steel Dynamics the world's 938th 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 Steel Dynamics from 1996 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	£18.34 B	30.62%
2024	£14.04 B	-6.37%
2023	£15.00 B	5.8%
2022	£14.17 B	55.37%
2021	£9.12 B	60.37%
2020	£5.69 B	2.19%
2019	£5.56 B	4.45%
2018	£5.33 B	-29.5%
2017	£7.56 B	7.56%
2016	£7.03 B	139.84%
2015	£2.93 B	-4.25%
2014	£3.06 B	15.96%
2013	£2.64 B	41.57%
2012	£1.86 B	0.79%
2011	£1.85 B	-28.26%
2010	£2.57 B	9.05%
2009	£2.36 B	70.66%
2008	£1.38 B	-51.43%
2007	£2.85 B	77.6%
2006	£1.60 B	80.68%
2005	£0.88 B	-7.05%
2004	£0.95 B	52.96%
2003	£0.62 B	75.29%
2002	£0.35 B	-2.59%
2001	£0.36 B	9.22%
2000	£0.33 B	-29.09%
1999	£0.47 B	36.15%
1998	£0.34 B	-27.3%
1997	£0.47 B	-10.51%
1996	£0.53 B

End of Day market cap according to different sources

On Dec 8th, 2025 the market cap of Steel Dynamics was reported to be:

£18.20 Billion

by Nasdaq

£18.34 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Nucor NUE	£27.34 B	49.07%	🇺🇸 USA
Commercial Metals Company CMC	£5.56 B	-69.69%	🇺🇸 USA
Gerdau GGB	£5.19 B	-71.70%	🇧🇷 Brazil
Radius Recycling (Schnitzer Steel) RDUS	£0.63 B	-96.53%	🇺🇸 USA
Grupo Simec SIMECB.MX	£3.44 B	-81.23%	🇲🇽 Mexico
U.S. Steel X	£9.31 B	-49.23%	🇺🇸 USA
Worthington Enterprises WOR	£2.06 B	-88.77%	🇺🇸 USA
POSCO PKX	£12.25 B	-33.18%	🇰🇷 S. Korea
ArcelorMittal MT	£24.85 B	35.50%	🇱🇺 Luxembourg
Carpenter Technology CRS	£11.52 B	-37.17%	🇺🇸 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 Steel Dynamics (STLD)

Market cap: £18.34 Billion