SuperworthSteel Dynamics market cap STLD
Share price times shares outstanding: what the whole company sells for, since 2009.
- Today, Oct 23, 2026
- $34.6B
- Highest close in our data
- $40.8B
- Jun 2026
Steel Dynamics is worth $34.6B at the close on Oct 23, 2026, at $241.53 a share.
That is up 55% over the last year and up 157% over five years.
Its highest close in our data was $40.8B in Jun 2026.
Market cap over time
Year by year
| Year | End of year | Low | High | Change |
|---|---|---|---|---|
| 2026 so far | $34.6B | $23.8B | $40.8B | +35% |
| 2025 | $25.6B | $16.4B | $25.6B | +45% |
| 2024 | $17.6B | $17.1B | $23.4B | −8% |
| 2023 | $19.1B | $16.2B | $23.3B | +11% |
| 2022 | $17.2B | $10.4B | $19.2B | +39% |
| 2021 | $12.3B | $7.2B | $14.9B | +59% |
| 2020 | $7.8B | $4B | $8.2B | +4% |
| 2019 | $7.4B | $5.6B | $9B | +9% |
| 2018 | $6.9B | $6.9B | $12B | −33% |
| 2017 | $10.2B | $8B | $10.3B | +18% |
| 2016 | $8.7B | $3.9B | $9B | +100% |
| 2015 | $4.3B | $4.1B | $5.4B | −7% |
| 2014 | $4.7B | $3.6B | $5.8B | +7% |
| 2013 | $4.4B | $3.2B | $4.4B | +52% |
| 2012 | $2.9B | $2.3B | $3.6B | +0% |
| 2011 | $2.9B | $2.2B | $4.4B | −28% |
| 2010 | $4B | $2.8B | $4.4B | +4% |
| 2009 | $3.8B | $2.9B | $3.9B | n/a |
Against its peers
Companies in Steel nearest Steel Dynamics' size, closest first, today.
| Company | Market cap |
|---|---|
| STLDSteel Dynamics | $34.6B |
| RSReliance Steel & Aluminum | $21.2B |
| NUENucor | $58.6B |
| CRSCarpenter Technology | $14.1B |
| Peer median | $21.2B |
What the market cap tells you
Share price times shares outstanding: what the whole company sells for today.
Size, not quality. Large caps move slower and are covered more. That is all it tells you.
More on Steel Dynamics
Valuation data, not investment advice. Prices as of . Reported figures come from the company's filings with the SEC.