STLD · Q3 2025 Earnings

Cautious

Steel Dynamics

Reported October 21, 2025

30-second summary

Steel Dynamics delivered record quarterly steel shipments of 3.6M tons and revenue of $4.83B (+11.2% YoY, +5.8% QoQ), with GAAP EPS of $2.74 and adjusted EBITDA of $664M. But aluminum operating loss came in at $57M versus the $40M guide — a $17M overshoot management attributes to accelerated certification testing — and the Q4 FY2025 aluminum loss guide was raised to ~$40M from the prior $15–20M band, even as management reaffirmed monthly EBITDA break-even by end of Q4. The aluminum thesis stays directionally intact (75% utilization exit FY2026 reaffirmed), but the print is messier than Q2's "inflection" framing implied.

Headline numbers

EPS

Q3 FY2025

$2.74

Revenue

Q3 FY2025

$4.83B

+11.2% YoY

Gross margin

Q3 FY2025

15.7%

Free cash flow

Q3 FY2025

$0.56B

Operating margin

Q3 FY2025

10.5%

Key financials

Q3 FY2025

Metric	Q3 FY2025	YoY	Q2 FY2025	QoQ
Revenue	$4.83B	+11.2%	$4.57B	+5.8%
EPS	$2.74	—	$2.01	+36.3%
Gross margin	15.7%	—	13.5%	+220bps
Operating margin	10.5%	—	8.4%	+210bps
Free cash flow	$0.56B	—	$0.01B	+3878.6%

Guidance

Company reaffirms key FY2025 and FY2026 aluminum and capital guidance; no new revenue or earnings guidance issued for Q4 FY2025 or FY2026.

Guidance is issued for the full year only, refreshed each quarter. Prior and new below are the same FY updated this quarter.

Actuals vs prior guidance

Metric	Period	Prior guide	Actual	Δ	Result
Aluminum Operating Loss	Q3 FY2025	$40 million	Not separately disclosed in actuals	Insufficient data to classify vs. guide	Met
Interest Expense	Q3 FY2025	$30 million	Not separately disclosed in actuals	Insufficient data to classify vs. guide	Met

Reaffirmed unchanged this quarter: Capital Investments ($400 million (H2 2025)), Aluminum Operating Loss ($15 to $20 million), Interest Expense ($45 million), Aluminum Utilization Rate (40% to 50% (exit rate)), Aluminum Utilization Rate (75% (exit rate))

Segment KPIs

Q3 FY2025

Segment	Q3 FY2025	YoY
Steel	$3.538B	+21.3%
Steel Fabrication	$0.378B	-15.6%
Metals Recycling	$0.521B	+4.5%
Aluminum	$0.071B	+6.3%

Other KPIs

Q3 FY2025

Segment	Q3 FY2025
Steel Shipments	3.6 million tons (record quarterly)
Steel Average External Sales Price	$1,119 per ton
Average Ferrous Scrap Cost	$381 per ton melted
Operating Margin	10.5%
Adjusted EBITDA	$664 million
Operating Cash Flow	$723 million
Three-Year After-Tax ROIC	15%
Steel Fabrication Shipments	151,563 tons

Management tone

Q1 2025 baseline (inferred) → Q2 "inflection" → Q3 "execution-with-overruns" → tonal posture entering 2026: structural-demand confidence with operational caveats.

Q2's tone leaned heavily on inflection language — fabrication trough, aluminum break-even before year-end, Sinton acceleration. Q3's posture is more measured: management still defends the trajectory but is now explaining misses and a raised Q4 aluminum loss guide rather than declaring milestones. The $57M aluminum loss vs $40M guide is real, and the Q&A defense — "accelerated certification testing," "electrical talent scarcity driven by data centers" — frames the cost creep as a cost of speed rather than execution failure. That framing is plausible but it is a framing.

The aluminum commercialization narrative has hardened in specifics. Management clarified that full automotive product-mix optimization is expected in 2027, with accelerated certifications enabling an earlier mix shift in 2026. Can sheet qualification is complete and running well; automotive hot band was certified in October. The target mix (45% can, 35% auto, balance industrial) is intact.

Forward demand language pivoted from tariff-as-moat (Q2) to onshoring-plus-infrastructure-plus-rates (Q3). Q2 leaned on the September anti-dumping rulings as the catalyst for coated flat-roll recovery; Q3 is broader — "increased trade stability and a more favorable interest rate environment" plus "domestic manufacturing investment, increased domestic onshoring activity, and momentum from the U.S. infrastructure program." Reading generously, this signals confidence that the tariff catalyst already landed and management is now looking through to 2026 structural drivers. Reading skeptically, the qualitative laundry list is what companies write when they don't want to commit to numerical FY2026 guidance.

Sinton is described in prepared remarks as having achieved record shipments and higher earnings, with consistent operational execution and a maturing value-add product portfolio. Aluminum through-cycle EBITDA is framed at $650–700M plus $40–50M for Omni, with total through-cycle EBITDA across Sinton, value-add lines, and aluminum dynamics targeted at over $1.4B (prepared remarks).

Q&A highlights

Katia Jančić · BMO

Clarification on aluminum rolling mill quality qualifications received and whether they open doors for longer-term contract negotiations. Also asked about 2026 product mix between industrial, can, and automotive segments.

Management confirmed accelerated qualifications are enabling negotiations for longer-term contracts in both can sheet and automotive. Can sheet performance is exceptional with successful qualification testing. For 2026, management expects confident can sheet mix achievement with automotive certifications still pending on finished product side, with optimization expected in 2027 rather than 2026.

Can sheet qualification completed and performing excellently on can linesAutomotive hot band certified in OctoberTargeting 45% can sheet, 35% automotive, remainder industrial mixFull automotive optimization now expected in 2027, not 2026

Timna Tanners · Wells Fargo

Ability to supply hotband to specific customers during market tight conditions, and explanation of $200M additional capex attributed to aluminum startup completion.

Management declined to comment on specific customer shipments citing confidentiality and NDAs standard in aluminum industry. Explained capex expansion due to late-stage construction contract adjustments and significant increase in electrical talent costs (scarcity driven by data center projects) to maintain schedule adherence.

Additional $200M capex for aluminum beyond original guidanceElectrical labor scarcity and contractor cost inflation cited as driverSchedule maintenance remained prioritized despite cost increasesCannot disclose customer-specific shipment details due to NDAs

Tristan Gresser · BNP Paribas

Aluminum exit run rate for 2025 and Q1 expectations for volume guidance, plus clarification on Q4 EBITDA breakeven timing and cost drivers for Q3 miss.

Management reaffirmed Q4 EBITDA breakeven to positive expectation unchanged. Higher than expected Q3 losses ($57M vs. $40M guidance) driven by accelerated product certification requiring higher testing costs. Provided 75% utilization rate exit for 2026 but declined to specify 2025 ramp rates due to product mix dependencies.

Q4 2025 aluminum losses estimated at $40M (vs. $57M in Q3)Monthly EBITDA breakeven expected Q4 2025, not delayedTarget 75% utilization rate exit for 2026Q3 overages due to accelerated product certification testing

Carlos Valba · Morgan Stanley

Status of flat roll headwinds entering Q4 and outlook for recovery. Also asked about potential for further aluminum expansion given early success and limited supply dynamics.

Flat roll headwinds primarily from coated inventory overhang expected to clear by end of Q4, with hot band pricing softening through quarter then turning positive mid-September. Management expressed confidence in Q1-Q2 2026 strength. Regarding aluminum expansion, stated intent to ensure deliberate ramping before aggressive growth, but acknowledged clear structural opportunity in flat-rolled sheet given 1.5M+ ton deficit independent of tariffs, plus downstream coating potential.

Inventory overhang expected depleted by end of Q4 2025Hot band pricing bottomed mid-September, inflecting positiveFlat roll deficit over 1.5M metric tons pre-tariffs; adding only 650K tonsDownstream aluminum coating opportunity identified as high-margin pull-through

Andrew Jones · UBS

Breakout of Sinton profitability contribution and cash tax impacts from accelerated depreciation under recent tax legislation.

Management declined specific Sinton EBITDA isolation, noting it is EBITDA positive but below through-cycle range of $475-525M. Provided comprehensive tax guidance: $147M deferred tax benefit in Q3 from R&D credits and accelerated depreciation; 8-9% cash tax rate for 2025, 15-16% for 2026, and 23% effective rate. Emphasized $5B in cumulative CapEx across three projects now generating $1.4B through-cycle EBITDA.

Sinton through-cycle EBITDA range: $475-525M annuallyQ3 deferred tax benefit: $147M (one-time, accelerated depreciation + R&D credits)2025 cash tax rate guidance: 8-9%2026 cash tax rate guidance: 15-16%; effective rate 23%

Answers to last quarter's watch list

Aluminum Q3 loss vs $40M guide and path to Q4 monthly EBITDA break-even — Loss came in at ~$57M, missing the guide by ~$17M. Management attributes the overshoot to accelerated certification testing rather than ramp failure, and reaffirms Q4 FY2025 monthly EBITDA break-even — but raised the Q4 quarterly loss guide to ~$40M from the prior $15–20M band. Status: Continue monitoring — break-even claim intact, but the quarterly loss guide moved materially worse.

September anti-dumping rulings and coated pricing recovery — Management stated flat-rolled prices have bottomed and expect improvement into 2026, with the ITC's September unanimous affirmative determination on coated flat-rolled imports cited as a tailwind given SDI's position as the largest non-automotive coated producer. Realized steel price of $1,119/ton is down $15 vs Q2, so the recovery is just starting in the print. Status: Resolved positively on direction — pricing inflection signaled, magnitude to show up in subsequent prints.

Steel fabrication "inflection" credibility — Fabrication revenue down 15.6% YoY vs Q2's -27.9%; operating income of $107M in Q3 vs $93M in Q2 on 12% sequential shipment growth, with backlog through Q1 2026 at stable pricing. Status: Continue monitoring — sequential trajectory supports the inflection claim, YoY still negative.

Pig iron / scrap cost pressure from Brazil tariff — Average ferrous scrap cost fell to $381/ton melted from $408/ton in Q2 — a $27/ton tailwind, not the pressure feared. Status: Resolved positively.

H2 capex pacing and interest expense — H2 FY2025 capex tracking ~$366M ($166M Q3 actual + ~$200M Q4 guide) vs prior $400M base — under-running, not over. Aluminum project total capex has expanded due to electrical labor cost inflation, but H2 pacing itself is not over budget. Q3 net interest expense of $13.6M came in well below the ~$30M guide. Status: Resolved positively.

What to watch into next quarter

Whether aluminum Q4 FY2025 operating loss lands near the newly raised ~$40M guide and whether monthly EBITDA break-even is actually achieved by December — the disconnect between a wider full-quarter loss guide and an unchanged exit run-rate claim is the key tension to resolve

Q4 FY2025 coated and hot band realized pricing — management called the bottom; if average external steel price recovers materially above the $1,119/ton Q3 print, the coated overhang story is closed

Steel Fabrication YoY trajectory — needs to turn flat-to-positive in Q4 FY2025 or Q1 FY2026 to validate the Q2 "earnings inflection" claim; current -15.6% YoY is not yet vindication

Whether aluminum project cost creep tied to electrical labor scarcity is contained as remaining construction completes — management flagged this as recent (last three months) and ongoing

FY2026 guidance disclosure timing — management declined to issue FY2026 revenue or EPS guidance despite repeated analyst attempts; whether Q4 FY2025 release introduces numerical FY2026 framing or remains qualitative

FY2025 aluminum utilization exit rate — previously guided to 40–50%, now withheld citing mix variability; reintroduction (or absence) of a number in Q4 will signal management confidence in the ramp curve

Sources

Steel Dynamics Q3 FY2025 Press Release, SEC Filing: https://www.sec.gov/Archives/edgar/data/1022671/000110465925101080/tm2529138d1_ex99-1.htm
Steel Dynamics Q3 FY2025 Earnings Call (prepared remarks and Q&A — BMO, BNP Paribas, Wells Fargo, Bank of America, KeyBank exchanges)

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