Steel Dynamics: Record Steel, Aluminum Ramp, and a $1.4B Growth Inflection

Steel: Record Volumes, Pricing Momentum, and a Lead times Cycle

Steel Dynamics kicked off Q2 2026 with a record-setting quarter. As Mark Millett put it, “The quarter highlights included record quarterly steel shipments of 3.7 million tons, adjusted EBITDA of $921 million.” — Mark Millett, Chairman and Chief Executive Officer · 2026-07-21 That EBITDA figure was up sequentially on the back of a $105 per ton increase in average selling prices, and value-added spreads to hot band improved $70 from Q4 2025 lows. The pricing power is underpinned by contract mechanics: “Approximately 80% or more of our flat-rolled steel business is linked to lagging price contracts, in aggregate, generally lagging two months.” — Theresa Wagler, Executive Vice President and Chief Financial Officer · 2026-07-21 This lag means the recent price strength flows through Q3 and Q4, a key reason management is “very bullish” on the second half. The steel fabrication order backlog is up 45% year-over-year, with the Lead times extended across most product lines. Demand from non-residential construction, infrastructure, and energy is broadening. Total revenue reached $5.2B in Q1 2026, up 19% YoY, and the operating margin expanded to 10.3%. The quarter also saw strong free cash flow generation, with $428M in operating cash flow, despite a working capital build tied to higher pricing and aluminum ramp-up.

Aluminum: From Ramp-Up to Inflection – scrap content as Margin Lever

The aluminum story is steadily transitioning from construction to profitability. Millett reported: “The hot side is fully operational, with the ability to run at rated capacity. Two of the three cold mills continue to increase production, while the third and final cold mill started this month.” — Mark Millett, Chairman and Chief Executive Officer · 2026-07-21 With that third cold mill, the 650,000 metric ton annual capability is within reach, and management expects to exit 2026 at a monthly run rate of at least 90% capacity. Shipments more than doubled sequentially to 53,000 metric tons, and each quarter is reducing startup losses. A critical driver of future profitability is scrap content – the company is currently using roughly 80% scrap in can sheet, and more scrap means lower input costs and higher recycled content premiums. “We are using probably in the order of about 80% scrap for our can sheet.” — Mark Millett, Chairman and Chief Executive Officer · 2026-07-21 The strategy is supported by the largest North American metals recycling footprint, which secures cost-advantaged aluminum scrap. The $650–700 million through-cycle EBITDA target for the aluminum platform looks increasingly conservative given today's spreads, and Theresa Wagler noted in the prior call that “we do expect to remain and be improving EBITDA throughout the first half of the year, and then the second half of the year really is about product mix optimization.” — Theresa Wagler, Executive Vice President and Chief Financial Officer · 2026-01-26 That trajectory is on track. The long-term demand picture is also favorable: the U.S. faces a structural supply deficit of 1.4 million metric tons of aluminum sheet, which tariffs only amplify.

We believe our aluminum platform is exceptionally well-positioned to capitalize on the growing domestic demand, creating substantial long-term value for our shareholders.

Capital Allocation: The $1.4B Growth Inflection – aluminum investment + Buybacks

Steel Dynamics' investment thesis converges in 2026: the heavy capital expenditure program (Sinton, value-added lines, aluminum) is winding down, and the incremental EBITDA potential is $1.4B through-cycle. The company has invested over $5B across these platforms, and the payoff is now visible. Free cash flow is set to surge, with management seeing working capital as a funding source in the second half. Shareholder returns are balanced: $200M in buybacks in Q2, with $489M remaining under authorization, alongside a growing dividend. Theresa emphasized “Our capital allocation strategy prioritizes high-return growth opportunities while maintaining a disciplined and balanced approach to shareholder value creation.” — Theresa Wagler, Executive Vice President and Chief Financial Officer · 2026-07-21 The balance sheet remains investment-grade, with leverage under 2x and liquidity of $2B. Free cash flow (less SBC) was roughly breakeven in Q1 2026, but CapEx has fallen sharply from $621M peak quarterly in Q4 2024 to $138M in Q1 2026. This sets the stage for either more buybacks or a step-up in growth investments. Millett's prior guidance for Q2 aluminum shipments was 60–70k tons; the actual 53k fell slightly short but was explained by packaging issues, not demand. The aluminum ramp and scrap-content optimization are the growth levers for 2027.

Takeaway

Steel Dynamics is delivering exactly what the market was waiting for: record steel volumes, improving spreads, and a disciplined aluminum ramp that is now EBITDA-positive on a monthly basis. With the scrap content improving and the third cold mill online, the aluminum platform moves from a cost center to an earnings contributor. The combination of steel pricing momentum, a 45% fab backlog growth, and the $1.4B through-cycle growth potential makes STLD a compelling industrial compounder, and the tape is starting to reflect that – the stock traded +20% over the last 90 days despite a mild drawdown from the June peak. The next quarters will test whether the aluminum EBITDA inflection meets the optimistic second-half guidance.