
Steel Dynamics, Inc. (SDI)
Steel Dynamics
Steel Dynamics, Inc. is a world-leading electric arc furnace (EAF) steel producer and the third-largest steel manufacturer in North America, founded by former Nucor executives in 1993 in Indiana and listed on NASDAQ (ticker: STLD). Operating through 100% scrap-based EAF steelmaking, the company deeply focuses on metal structural materials and fabricated components within the full spectrum of building materials, offering a comprehensive portfolio spanning structural steel (wide flange beams, H-sections), rebar, coated sheet, steel tube, plate, steel joists and decking (New Millennium Building Systems), and flat-rolled aluminum products. With 2025 global revenue of $18.2 billion, net income of $1.2 billion, and record steel shipments of 13.7 million tons, Steel Dynamics operates seven modern EAF steel mills, dozens of OmniSource scrap recycling facilities, and a nationwide network of steel fabrication centers across North America, employing approximately 13,500 people. Powered by one of North America's largest scrap recycling networks, ultra-low-carbon EAF steel (70%+ lower carbon footprint than integrated mills), and New Millennium's dominant position in steel joists and decking, Steel Dynamics is solidifying its position as the preferred structural material supplier for green building projects across North America through exceptional operational efficiency and vertical integration.
Strengths: Steel Dynamics' core strength lies in its 100% scrap-based EAF steelmaking model and the industry-leading OmniSource scrap recycling network, delivering highly flexible production costs and carbon emissions far below traditional blast furnace steelmakers, providing decisive advantages in LEED green building procurement. Its powerful downstream fabrication capabilities create unique end-market barriers, with New Millennium Building Systems ranking among North America's largest steel joist and decking suppliers, while the 2025 acquisition of New Process Steel further extends the value chain from raw steel to finished components. Exceptional operational efficiency and capacity utilization (86%) sustain strong profitability through market cycles, with successful diversification into low-carbon aluminum products.
Weaknesses: Steel Dynamics' primary weaknesses include heavy concentration in the North American market (core facilities only in the US and Mexico), making it highly sensitive to regional economic cycles and North American steel price volatility. As a scrap-based EAF producer, scrap price fluctuations significantly impact gross margins, with 2025 net income declining year-over-year due to planned maintenance downtime and seasonal demand softness. It faces direct competition from Nucor and other domestic players, limiting pricing power on commodity products, while its global footprint remains significantly weaker than international giants like ArcelorMittal, with minimal overseas revenue exposure.Read MoreShow Less
Strengths: Steel Dynamics' core strength lies in its 100% scrap-based EAF steelmaking model and the industry-leading OmniSource scrap recycling network, delivering highly flexible production costs and carbon emissions far below traditional blast furnace steelmakers, providing decisive advantages in LEED green building procurement. Its powerful downstream fabrication capabilities create unique end-market barriers, with New Millennium Building Systems ranking among North America's largest steel joist and decking suppliers, while the 2025 acquisition of New Process Steel further extends the value chain from raw steel to finished components. Exceptional operational efficiency and capacity utilization (86%) sustain strong profitability through market cycles, with successful diversification into low-carbon aluminum products.
Weaknesses: Steel Dynamics' primary weaknesses include heavy concentration in the North American market (core facilities only in the US and Mexico), making it highly sensitive to regional economic cycles and North American steel price volatility. As a scrap-based EAF producer, scrap price fluctuations significantly impact gross margins, with 2025 net income declining year-over-year due to planned maintenance downtime and seasonal demand softness. It faces direct competition from Nucor and other domestic players, limiting pricing power on commodity products, while its global footprint remains significantly weaker than international giants like ArcelorMittal, with minimal overseas revenue exposure.
Listed market data
STLD · NASDAQ · weeklyHistory →- Market cap
- $35.9 B
- Share price
- USD 251.91
- 1Y change
- +58.5%
- Recent change
- +0.4%
- Since first close
- ×55.2
- Revenue (TTM)
- $20.5 B
10-30 → 11-02
from 1996-11
Financial history
Full market history- 2026-11USD 251.91$35.9 B+4.7%
- 2026-10USD 240.54$34.5 B+8.5%
- 2026-09USD 221.61$31.6 B-4.7%
- 2026-08USD 232.62$33.2 B-7.4%
- 2026-07USD 251.26$35.8 B+9.5%
- 2026-06USD 229.46$32.7 B-11.8%
- 2026-05USD 260.15$37.1 B+13.8%
- 2026-04USD 228.66$32.6 B+27.0%
- 2026-03USD 180.00$25.7 B-6.8%
- 2026-02USD 193.13$27.6 B+7.6%
- 2026-01USD 179.57$25.6 B+6.0%
- 2025-12USD 169.45$24.2 B—
Ownership & Control
Shareholding as of 2026-06-30- Controlling entity
- Publicly held — no controlling shareholder disclosed
- Company type
- Brand & Manufacturer
- Insiders
- 6.62%
- Institutions
- 86.91%(1,464 holders)
- Free float
- 93.06%
Percentages are of total shares outstanding, aggregated from 13F-style filings via Yahoo Finance. Institutional figures reflect US-filed positions and may undercount owners filing elsewhere. No figure is shown where none is disclosed.
In the press
All coverage →5 latest headlines- SDI sees bright Q4, 2027 after stellar Q3 results - Steel Market Updatewww.steelmarketupdate.com2026-10-20
- Steel Dynamics announces series of leadership promotions - Steel Market Updatewww.steelmarketupdate.com2026-10-20
- Higher steel prices contribute to SDI’s quarterly financial performance - Recycling Todaywww.recyclingtoday.com2026-10-20
- Steel Dynamics Earnings Ahead: What Past Reactions Say About The Stocktrefis.com2026-10-17
- Steel Dynamics (STLD) Stock May Be Reasonable After Q3 Earnings Expectationsfinance.yahoo.com2026-10-16
| Fiscal year | Revenue | Net income |
|---|---|---|
| 2025 | $18.2 B | $1.2 B |
| 2024 | $17.5 B | $1.5 B |
| 2023 | $18.8 B | $2.5 B |
| 2022 | $22.3 B | $3.9 B |
| 2021 | $18.4 B | $3.2 B |
Annual results from company filings (SEC XBRL), converted to US dollars.
Quick Facts
Headquarters
Fort Wayne, Indiana, United States
Founded
1993
Employees
13.5K+
Market cap
$35.9 B
Presence
Focus On The US Market
Listing
NASDAQ: STLDCategories
19 categories · scroll for more
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Data Sources & Methodology
This corporate profile is compiled from publicly available sources including company annual reports, SEC/regulatory filings, official press releases, and verified third-party industry databases. Financial figures reflect the most recent fiscal year disclosures and are cross-validated across multiple independent references.
VerityRank Score is calculated using a proprietary multi-dimensional model evaluating market presence, financial strength, operational scale, innovation capacity, and brand influence. Individual dimension scores are normalized against industry peers and updated quarterly.
Disclaimer: This profile is for informational purposes only. VerityRank makes no warranties regarding completeness or timeliness. This content does not constitute investment advice or endorsement.
Key references: Nasdaq : STLD
