Steel Dynamics (STLD) - Market capitalization

Market cap: NZ$43.27 Billion

As of December 2025 Steel Dynamics has a market cap of NZ$43.27 Billion. This makes Steel Dynamics the world's 921th 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	NZ$43.27 B	38.46%
2024	NZ$31.25 B	3.42%
2023	NZ$30.21 B	11.85%
2022	NZ$27.01 B	49.81%
2021	NZ$18.03 B	67.76%
2020	NZ$10.74 B	-0.85%
2019	NZ$10.84 B	7.46%
2018	NZ$10.08 B	-29.89%
2017	NZ$14.38 B	14.9%
2016	NZ$12.52 B	97.31%
2015	NZ$6.34 B	4.34%
2014	NZ$6.08 B	14.79%
2013	NZ$5.29 B	44.64%
2012	NZ$3.66 B	-0.57%
2011	NZ$3.68 B	-28.6%
2010	NZ$5.16 B	-2.06%
2009	NZ$5.26 B	50.55%
2008	NZ$3.50 B	-52.7%
2007	NZ$7.40 B	65.67%
2006	NZ$4.46 B	99.11%
2005	NZ$2.24 B	-12.84%
2004	NZ$2.57 B	49.55%
2003	NZ$1.72 B	57.45%
2002	NZ$1.09 B	-14.53%
2001	NZ$1.27 B	13.23%
2000	NZ$1.12 B	-22.76%
1999	NZ$1.46 B	33.42%
1998	NZ$1.09 B	-18.97%
1997	NZ$1.35 B	4.52%
1996	NZ$1.29 B

End of Day market cap according to different sources

On Dec 9th, 2025 the market cap of Steel Dynamics was reported to be:

NZ$41.72 Billion

by Nasdaq

NZ$42.05 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Nucor NUE	NZ$64.40 B	48.84%	🇺🇸 USA
Commercial Metals Company CMC	NZ$13.17 B	-69.56%	🇺🇸 USA
Gerdau GGB	NZ$12.12 B	-71.98%	🇧🇷 Brazil
Radius Recycling (Schnitzer Steel) RDUS	NZ$1.46 B	-96.62%	🇺🇸 USA
Grupo Simec SIMECB.MX	NZ$7.95 B	-81.60%	🇲🇽 Mexico
U.S. Steel X	NZ$21.44 B	-50.44%	🇺🇸 USA
Worthington Enterprises WOR	NZ$4.88 B	-88.71%	🇺🇸 USA
POSCO PKX	NZ$28.07 B	-35.11%	🇰🇷 S. Korea
ArcelorMittal MT	NZ$58.65 B	35.54%	🇱🇺 Luxembourg
Carpenter Technology CRS	NZ$26.36 B	-39.08%	🇺🇸 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: NZ$43.27 Billion