Worthington Steel, Inc. (WS) | The Buildout — AI Infrastructure
The Verdict
Worthington Steel is a value-added metals processor, not a steel mill. It buys flat-rolled carbon steel, electrical steel and aluminum, then pickles, galvanizes, blanks, slits, cuts to length and laser-welds the material into pieces its customers can use directly. Its link to the AI buildout runs through electrical steel laminations — the stacked magnetic cores inside power transformers. Data centers pull electricity, grid expansion needs transformers, and transformers need cores. Management has also put AI to work inside the company, on back-office tasks and on an order-management agent at Spartan Steel Coating.
| Market Cap | — |
| Revenue (TTM) | $3.4B |
| Revenue Growth | +11.3% |
| EBITDA Margin (TTM) | 5.5% |
| Net Debt | $270M |
| Earnings Beats | 3 of 7 |
| P/E (TTM) | — |
| EV/EBITDA (TTM) | — |
What We Like
- Automotive share gains are running ahead of the underlying market: Q1 FY2026 automotive shipments rose 17% and Detroit Three shipments nearly 13%, against a 5% rise in Detroit Three production. Management points to more meaningful gains in calendar 2027 as new programs and contracts start.
- Mix is shifting toward higher-value direct sales. Direct volume was 65% of FY2026 Q4 mix, up from 60%, and management guides a 60–65% direct band. The Cleveland consolidation permanently removes about 100,000 annual toll tons under normal market conditions.
- The Klöckner deal adds scale and end-market diversification: roughly 62% ownership of Klöckner's shares, adding aluminum, stainless, long products, plate and fabrication, with debt targeted to be cut in half over the synergy period.
- Electrical steel capex is aimed at a market management describes as short of supply. The U.S. transformer market is expected to double over 10 years and grow up to 7% per year, and a Canada transformer core facility is being built to serve it.
- Operational and AI work is producing concrete numbers. Lean-flow changes at Bowling Green cut inventory roughly 37% while holding 100% on-time delivery, and the Spartan Steel Coating order-management agent reached over 90% accuracy in testing.
What We’re Watching
- The integration clock has a legal gate. Management's own framing: "Until we reach DPLTA, we're not really able to start integration." The DPLTA was signed on September 8, 2026, but approval and effectiveness steps remain.
- Electrical steel was repriced lower near term by a $94.5M pre-tax non-cash impairment, attributed to softer European activity, increased U.S. foreign competition, and a temporary slowdown in industrial motor demand.
- Concentration keeps rising. Automotive was 55% of net sales for the nine months ended February 28, 2026, up from 52%, and the Detroit Three 35%, up from 32%.
- Two June 2026 filings are unexplained in the source: a director/officer departure in an 8-K dated June 25, 2026, and signed-and-terminated material agreements plus a new debt obligation in an 8-K dated June 30, 2026 that the watch system flags as potential restructuring.
The thesis is in transition rather than intact or broken. The operating business is doing what management said it would — winning automotive share above build rates and shifting mix toward direct sales — while the electrical steel line that was pitched as a growth engine absorbed a write-down. The Klöckner close moved WS from a mid-size processor to majority owner of a German-listed metals group, but the synergies that justify it are gated on the DPLTA. The open question is whether integration starts in time for the stated targets to land on their year-one/year-two schedule.
Earnings
In the fiscal fourth quarter ended May 31, 2026, net sales were $929.2M, up 12% from a year earlier, on gross margin of 12.7%. Total shipments were roughly 939,000 tons, down 44,000 tons or 4%, as lower toll volumes more than offset direct growth. The company reported a GAAP net loss of $48.7M, or $0.98 per share, against earnings of $55.7M a year earlier; adjusted EPS was $0.74 versus $1.05. The loss included a $94.5M pre-tax non-cash impairment in electrical steel and $15.5M of Klöckner acquisition expenses.
| Metric | Q4 FY2026 | Q3 FY2026 | Q4 FY2025 | YoY |
|---|---|---|---|---|
| Revenue | $929M | $770M | $833M | +11.6% |
| Gross margin | 12.7% | 9.9% | 15.2% | -250bps |
| EBITDA | $58M | $20M | $83M | −30.3% |
| EPS | $-0.98 | $0.21 | $1.13 | −186.9% |
| Direct sale mix | 65% | n/a | 60% | +8.3% |
| Inventory holding gains (pre-tax) | $14.7M | n/a | $20.8M | −$6.1M |
Until we reach DPLTA, we're not really able to start integration… that's what was exciting about accelerating the closing.— Geoff Gilmore, CEO, June 25, 2026
Management tone: On the June 25, 2026 call management was confident on the strategic narrative and candid about the noise. The electrical steel impairment was disclosed with its causes — softer European activity, increased U.S. foreign competition, and a temporary industrial-motor demand slowdown — and distinguished as non-cash. On AI, asked how the Spartan agent closes the gap from over 90% accuracy to 100%, management reframed rather than offering milestones, saying the model needs more practice and testing and that the company will work through trial and error. Asked about a FY2027 AI budget, management said none had been set, noting the debt taken on for the deal. Most Q&A exchanges were rated direct in the source.
Management Guidance
On the June 25, 2026 call management guided Q1 FY2027 pre-tax inventory holding gains of $10–15M and FY2027 legacy Worthington Steel capex of about $60M including maintenance. It reaffirmed the Klöckner targets: $150M of EBITDA synergies and $150M of working capital opportunities, split roughly 50/50 between year one and year two, with debt cut in half over the same period. It said it has not set a specific FY2027 AI budget and wants to keep investing while being mindful of paying down deal debt. Management said combined-company reporting begins next quarter, with earnings announced a couple of weeks later than usual, that more meaningful automotive share gains are likely in calendar 2027, and that customer reshoring decisions await USMCA clarity.
Trajectory
Revenue has held in a high-$700M to low-$900M band for eight quarters, and margin moves with steel prices and mix rather than with top line. Gross margin was 12.7% in FY2026 Q4 against 15.2% a year earlier, with a $8.7M year-over-year hit to direct spreads excluding Sitem and a wider raw-material-to-scrap spread. Volume is shrinking by design in one part of the book: total shipments fell 4% to roughly 939,000 tons as toll processing dropped 15%, while direct sales rose to 65% of mix from 60%. The reported figures' EBITDA basis (operating income plus D&A) fell to $58.1M from $83.3M a year earlier, and free cash flow swung from $117.4M in FY2026 Q3 to −$38.6M in Q4. Revenue is about to change shape entirely — Klöckner closed June 3, 2026.
The Model
The model's locked projections are FY+1 revenue of $10,650M with EBITDA of $532M (5.0%), and FY+2 revenue of $10,900M with EBITDA of $650M (5.96%). Both sit far above the $3,443.8M of trailing-twelve-month revenue, consistent with a reporting base that now includes Klöckner. The near-term anchor is that combined base plus the $150M of Klöckner EBITDA synergies management reaffirmed and ties to reaching the DPLTA. FY+2 depends more on the growth projects already under construction — the Canada transformer core facility and the Mexico lamination expansion — and on whether the electrical steel unit, which just absorbed a write-down, stabilizes.
| Metric | FY2026 | Next FY (E) | Following FY (E) |
|---|---|---|---|
| Revenue | $3.4B | $10.7B | $10.9B |
| YoY Growth | — | +209.3% | +2.3% |
| EBITDA | $191M | $532M | $650M |
| EBITDA Margin | 5.5% | 5.0% | 6.0% |
Projections are the median of 5 independent model runs.
On the June 25, 2026 call management guided Q1 FY2027 pre-tax inventory holding gains of $10–15M and FY2027 legacy Worthington Steel capex of about $60M including maintenance. It reaffirmed the Klöckner targets: $150M of EBITDA synergies and $150M of working capital opportunities, split roughly 50/50 between year one and year two, with debt cut in half over the same period. It said it has not set a specific FY2027 AI budget and wants to keep investing while being mindful of paying down deal debt. Management said combined-company reporting begins next quarter, with earnings announced a couple of weeks later than usual, that more meaningful automotive share gains are likely in calendar 2027, and that customer reshoring decisions await USMCA clarity.
What Could Go Right — and Wrong
- The DPLTA becomes effective and Klöckner integration starts, letting the Klöckner EBITDA and working capital targets land on the roughly 50/50 year-one/year-two split and half the debt come off.
- More meaningful automotive share gains arrive in calendar 2027 as new programs and contracts start, extending the gap between WS shipments and Detroit Three build rates.
- The Canada transformer core facility ramps and the Mexico lamination expansion follows, giving electrical steel a second growth leg into a market management says is short of supply.
- The Spartan Steel Coating order-management agent moves from testing to deployment and the two pending AI partnerships are announced.
- Steel prices hold near recent levels — hot rolled coil ended May at nearly $1,075 per ton, up from about $900 — keeping inventory holding gains positive after the guided $10–15M for Q1 FY2027.
- Electrical steel weakness persists after the impairment, with softer European activity, increased U.S. foreign competition, and an industrial-motor slowdown continuing.
- Construction and heavy truck stay weak — shipments in both fell 14% in FY2026 Q4 — and the trailer rebound management pushed out does not arrive.
- Integration stays gated on DPLTA approval and effectiveness, delaying the start of work behind the Klöckner EBITDA synergies and working capital.
- Leverage from the more than $1B raised for Klöckner keeps constraining discretionary spending, with no AI budget set and debt reduction prioritized.
- Automotive concentration keeps climbing — 55% of net sales and 35% from the Detroit Three — so a lost program or an auto downturn hits disproportionately.
Looking Ahead
The next 12 months turn on two tests: whether Klöckner integration actually begins, and whether the electrical steel build-out starts to earn its capex. Both have stated markers. The DPLTA was signed on September 8, 2026, but approvals and effectiveness still gate the integration clock that the Klöckner synergy and working capital targets hang on. First combined financials arrive October 7, 2026, and management has guided a $10–15M pre-tax inventory holding gain for that quarter. On the other side, the electrical steel unit carries a fresh write-down while the transformer market is described as doubling over a decade — the reconciliation is what the Canada and Mexico facilities have to deliver. Two June 2026 8-K items, the officer departure and the signed-and-terminated agreements with new debt, remain unexplained in the source.
- October 7, 2026Q1 FY2027 results — First combined reporting; tests the $10–15M holding-gain guide.
- H2 calendar 2026Class 8 improvement — Management expects Class 8 improvement in this window.
- FY2027Legacy capex guidance — About $60M for legacy Worthington Steel, including maintenance.
- CY2027Automotive contract ramp — New programs and contracts expected to layer in more share.
- 2027Trailer market rebound — Management pushed the trailer recovery out of 2026.
Financials
Annual Summary
| Metric | FY2025 | FY2026 | TTM | YoY |
|---|---|---|---|---|
| Revenue | $3.1B | $3.4B | $3.4B | +11.3% |
| Gross Margin | 12.4% | 11.6% | 11.7% | 82bps |
| EBITDA | $213M | $191M | $191M | -10.4% |
| EBITDA Margin | 6.9% | 5.5% | 5.5% | 134bps |
| Net Income | $111M | $17M | $17M | -84.8% |
| Free Cash Flow | $100M | $118M | $118M | — |
| Net Cash | — | — | — | — |
Key Ratios (Trailing)
- P/E TTM—
- EV/EBITDA TTM—
- EV/Revenue TTM—
- Price/FCF TTM—
- Gross Margin (TTM)11.7%
- EBITDA Margin (TTM)5.5%
- Net Margin (TTM)0.5%
- ROIC6.2%
- FCF Conversion61.7%
- SBC / Revenue0.4%
The Company
Worthington Steel buys flat-rolled carbon steel, electrical steel and aluminum and processes it — pickling, specialty re-rolling, hot dip galvanizing, blanking, slitting, cutting-to-length and laser welding. The company describes itself as one of North America's premier value-added metals processors. Three product lines sit inside a single reportable segment: carbon flat-rolled steel processing, electrical steel laminations for automotive, industrial motor, generator and transformer industries, and tailor welded blanks for automotive lightweighting. The laminations are the AI-adjacent piece — grain-oriented electrical steel stacked into the magnetic circuits inside power transformers.
The 10-K filed July 29, 2025 reported 28 manufacturing facilities: 19 in the U.S., 2 in Canada, 4 in Mexico, and one each in China, India and Germany. Management reports a single segment and says it determined that after weighing its internal organizational structure, how budgets and forecasts are prepared, the information its chief operating decision maker reviews, and how it releases information publicly; the business is managed on a products-and-services basis under one group structure. The footprint is actively changing. The Cleveland, Ohio toll pickling plant was consolidated into Twinsburg, Ohio in 2025, and the June 2026 Klöckner close added aluminum, stainless, long products, plate and fabrication.
Business Segments
Competitive Landscape
Worthington Steel competes with other metals service centers and processors. The source material names four — Reliance Steel & Aluminum, Russel Metals, Ryerson and Olympic Steel — and per the supply-chain wiring these are inferred peers rather than company-disclosed ones. The evidence pack defines the differentiation as deep automotive relationships and processing capabilities such as tailored blanks and ablation welding, an expanding electrical steel franchise that most generalist service centers do not have, and a geographic footprint across North America that now reaches Europe. In tailor welded blanks, the materiality scan names ArcelorMittal Tailored Blanks as the main rival — the same partner WS licenses the ablation process from, framed in the source as a joint opportunity.
- Reliance Steel & Aluminum Co.Listed as a metals service center peer in the competitor wiring; no company commentary in the source.
- RyersonListed as a peer in the competitor wiring; no company commentary in the source.
- Olympic SteelListed as a peer, tagged ZEUS, in the competitor wiring; no company commentary in the source.
- Russel MetalsDescribed in the wiring as a Canadian service center with Klöckner asset overlap.
- ArcelorMittal Tailored BlanksNamed by the materiality scan as the main rival in tailor welded blanks; also WS's TWB joint-venture partner and ablation-process licensor, framed as a joint opportunity.
Supply Chain
Worthington Steel sits between steel mills and zinc producers on one side and automotive and industrial manufacturers on the other. It buys flat-rolled steel and zinc, processes the material, and sells the finished piece. None of the verified value-chain neighbors in the source mention WS by name.