Steel Dynamics (STLD) - Market capitalization

Market cap: A$40.17 Billion

As of February 2026 Steel Dynamics has a market cap of A$40.17 Billion. This makes Steel Dynamics the world's 878th 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 2026

End of year Market Cap

Year	Marketcap	Change
2026	A$40.17 B	4.18%
2025	A$38.56 B	36.08%
2024	A$28.33 B	1.02%
2023	A$28.05 B	11.28%
2022	A$25.20 B	48.36%
2021	A$16.99 B	68.44%
2020	A$10.08 B	-3.28%
2019	A$10.42 B	8.57%
2018	A$9.60 B	-26.62%
2017	A$13.09 B	8.77%
2016	A$12.03 B	101.82%
2015	A$5.96 B	2.39%
2014	A$5.82 B	19.29%
2013	A$4.88 B	68.33%
2012	A$2.90 B	3.41%
2011	A$2.80 B	-28.45%
2010	A$3.91 B	-8%
2009	A$4.26 B	47.99%
2008	A$2.87 B	-55.6%
2007	A$6.48 B	62.41%
2006	A$3.99 B	90.49%
2005	A$2.09 B	-11.7%
2004	A$2.37 B	57.67%
2003	A$1.50 B	48.23%
2002	A$1.01 B	-2.42%
2001	A$1.04 B	16.24%
2000	A$0.89 B	-23.02%
1999	A$1.16 B	23.28%
1998	A$0.94 B	-21.7%
1997	A$1.20 B	4.68%
1996	A$1.15 B

End of Day market cap according to different sources

On Feb 20th, 2026 the market cap of Steel Dynamics was reported to be:

A$39.85 Billion

by Nasdaq

A$40.17 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Commercial Metals Company CMC	A$12.03 B	-70.04%	🇺🇸 USA
Nucor NUE	A$58.13 B	44.71%	🇺🇸 USA
ArcelorMittal MT	A$70.51 B	75.52%	🇱🇺 Luxembourg
Worthington Enterprises WOR	A$4.00 B	-90.03%	🇺🇸 USA
Radius Recycling RDUS	A$1.19 B	-97.02%	🇺🇸 USA
Grupo Simec SIMECB.MX	A$6.89 B	-82.84%	🇲🇽 Mexico
POSCO PKX	A$29.39 B	-26.82%	🇰🇷 S. Korea
U.S. Steel X	A$17.52 B	-56.38%	🇺🇸 USA
Gerdau GGB	A$11.62 B	-71.07%	🇧🇷 Brazil
Carpenter Technology CRS	A$27.39 B	-31.80%	🇺🇸 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: A$40.17 Billion