| STLD Market Cap History Table | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Below is a table of the STLD market cap history going back to 2/18/2010:
Also see: STLD Shares Outstanding History and STLD YTD Return |
STLD Market Cap History — Steel Dynamics Capitalization Over Time
As of 4/22/2026 Steel Dynamics has a market cap of 32.80 billion. Investors often follow the STLD market cap history to compare the size of the company over time.
This page shows STLD market capitalization trends over time, with 68 market cap datapoints presented, dating back to 2/18/2010.
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STLD Historical Market Cap: +14.62% CAGR 
Mouse over chart for data details
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| STLD Stock Price Chart |
| About Steel Dynamics Inc. |
| Steel Dynamics, Inc. is a steel producer and metal recycler in the North America. Its segments include Steel Operations, Metals Recycling Operations, Steel Fabrication Operations and Aluminum Operations. Steel Operations segment consists primarily of steelmaking and various coating operations. Metals Recycling operations segment include both ferrous and nonferrous scrap metal processing, transportation, marketing, brokerage and scrap management services, strategically located primarily in close proximity to its steel mills and other end-user scrap consumers, across the U.S., and Central and Northern Mexico. We show 68 historical shares outstanding datapoints in our STLD shares outstanding history coverage, used to compute STLD market cap on those dates. Understanding the changing numbers of shares outstanding, the changing share price, and the resulting changing STLD market cap history over the course of time is important for investors interested in comparing STLD's market cap history versus its peers. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies, and then calculating their respective market caps. Comparing the share price of STLD versus a peer is one thing; comparing STLD market cap versus a peer is a completely different story. Furthermore, via fluctuation both in per-share price and in the number of shares outstanding (via issuance of new shares over time, the repurchase of existing shares), the market cap for a company like STLD can fluctuate over the course of history. With this page we aim to empower investors researching STLD by allowing them to research the STLD market cap history. |
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| Video: The Importance of Market Cap | |
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Video: The Importance of Market Cap
| STLD Share Performance |
| Market Cap Peers |
| Steel Dynamics (STLD) is categorized under the Materials sector; to help you further research historical market cap numbers, below are some other companies in the same sector:
SUM Market Cap History SVFD Market Cap History SWIM Market Cap History SWM Market Cap History SXC Market Cap History SXCP Market Cap History SXT Market Cap History SYNL Market Cap History TAC Market Cap History TAHO Market Cap History More Materials companies » |
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