Steel Dynamics vs ArcelorMittal SA: why the prices moved differently

Weekly · monthly · quarterly news summaries, side by side in time

Steel Dynamics Inc (STLD)

Q3 202618 Jun – 18 Sep 2026

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Record steel shipments and AI demand drive STLD, but aluminum losses and peak fears cap gains

Record steel shipments and strong pricing Steel Dynamics shipped a record 3.7 million tons in Q2, with net income of $534 million and steel profit up 30% on strong pricing. This shows robust demand and pricing power.
It highlights the core operational strength that drove financial performance.
AI data-center demand and bullish Q3 guidance AI data-center demand and a bullish Q3 earnings guide of $5.34–$5.38 per share, with backlog up about 50%, support the stock. This signals confidence in future growth.
It points to a key demand driver and management's positive outlook.
Aluminum segment losses and impairment The aluminum segment lost $33 million and took a $16 million impairment charge, even as the Mississippi mill ramps toward commercial shipments. This drags on overall profitability.
It represents a significant financial setback and risk to earnings.
Peak rally warning and tariff retaliation Morgan Stanley warns the steel rally is near its peak, and US-Canada tariff retaliation hurts exports. Q3 guidance missed the $5.60 consensus, sending shares down 2–3%.
It captures external risks and market reaction that capped upside.

September 202619 Aug – 18 Sep 2026

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Steel Dynamics: Tariff Whiplash and a Strong Q3 Guide That Still Missed Estimates

US-Canada tariff fight swings both ways The US first floated halving Canadian steel tariffs to 25%, then talks collapsed and 50% tariffs returned, helping STLD by keeping Canadian steel out. But Canada hit back on Sept 8 with its own tariffs on US steel, hurting STLD's exports there. Net effect is choppy but leans positive for US pricing.
This is the main force moving STLD this period, with both a positive and negative side.
Q3 guidance shows a big profit jump STLD guided Q3 earnings to $5.34-$5.38 per share, far above last quarter's $3.69 and last year's $2.74. Record shipments, higher prices, lower scrap costs, and a backlog nearly 50% bigger than a year ago all point to strong demand from construction, data centers, and manufacturing.
This is the clearest new evidence of STLD's underlying business strength and future earnings power.
Guidance still missed Wall Street's target Even though the Q3 guide was a big step up, it came in below the $5.60 analysts expected, and the stock fell about 2-3% on the news. That gap shows expectations were already high and the market was disappointed, a real counterweight to the bullish numbers.
It explains why a strong-sounding guide still pushed the stock down and balances the positive guidance point.
Aluminum expansion keeps advancing STLD said its new Columbus, Mississippi aluminum mill is ramping up: all three cold mills are running and the first heat-treat line should ship commercial material in Q4. Aluminum earnings are expected to improve meaningfully, adding a new growth leg beyond steel.
It shows a new source of future earnings that supports the long-term investment case.

Latest19 Aug – 18 Sep 2026

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Steel Dynamics: Tariff Whiplash and a Strong Q3 Guide That Still Missed Estimates

US-Canada tariff fight swings both ways The US first floated halving Canadian steel tariffs to 25%, then talks collapsed and 50% tariffs returned, helping STLD by keeping Canadian steel out. But Canada hit back on Sept 8 with its own tariffs on US steel, hurting STLD's exports there. Net effect is choppy but leans positive for US pricing.
This is the main force moving STLD this period, with both a positive and negative side.
Q3 guidance shows a big profit jump STLD guided Q3 earnings to $5.34-$5.38 per share, far above last quarter's $3.69 and last year's $2.74. Record shipments, higher prices, lower scrap costs, and a backlog nearly 50% bigger than a year ago all point to strong demand from construction, data centers, and manufacturing.
This is the clearest new evidence of STLD's underlying business strength and future earnings power.
Guidance still missed Wall Street's target Even though the Q3 guide was a big step up, it came in below the $5.60 analysts expected, and the stock fell about 2-3% on the news. That gap shows expectations were already high and the market was disappointed, a real counterweight to the bullish numbers.
It explains why a strong-sounding guide still pushed the stock down and balances the positive guidance point.
Aluminum expansion keeps advancing STLD said its new Columbus, Mississippi aluminum mill is ramping up: all three cold mills are running and the first heat-treat line should ship commercial material in Q4. Aluminum earnings are expected to improve meaningfully, adding a new growth leg beyond steel.
It shows a new source of future earnings that supports the long-term investment case.

July 202618 Jun – 21 Jul 2026

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Steel Dynamics beats on record shipments, but aluminum charges weigh

Record Q2 steel shipments and profit Steel Dynamics reported Q2 net income of $534 million on record steel shipments of 3.7 million tons, with steel operations profit up 30% from the prior quarter on higher prices and wider metal spreads. This confirms strong demand and pricing power, supporting the stock.
This is the period's biggest positive fundamental event, directly showing earnings power.
AI data centers drive steel demand The VanEck Steel ETF hit a 52-week high as AI infrastructure buildout boosts demand for structural steel. Steel Dynamics is a top holding, and its electric arc furnaces can supply premium AI-grade steel, adding a new growth driver beyond traditional markets.
It explains a fresh demand source that lifts the whole steel sector, including STLD.
Aluminum segment losses and $16M charge The aluminum ramp-up posted a $33 million operating loss, and an additional $16 million non-cash impairment charge was recorded. These drag on overall profit and show the new aluminum business is still losing money, a real counterweight to the steel strength.
It is the main negative in the latest earnings and explains why the stock dipped despite a beat.
Analyst sees steel rally peaking Morgan Stanley kept Steel Dynamics at Equal-weight and raised its target to $270, but warned the supply-driven steel price rally is near its peak and profitability could decline after 2027 as new supply and imports ease the market. This caps upside enthusiasm.
It gives a balanced view on future pricing, a key driver for STLD's earnings.

18 Jun – 21 Jul 2026

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Steel Dynamics beats on record shipments, but aluminum charges weigh

Record Q2 steel shipments and profit Steel Dynamics reported Q2 net income of $534 million on record steel shipments of 3.7 million tons, with steel operations profit up 30% from the prior quarter on higher prices and wider metal spreads. This confirms strong demand and pricing power, supporting the stock.
This is the period's biggest positive fundamental event, directly showing earnings power.
AI data centers drive steel demand The VanEck Steel ETF hit a 52-week high as AI infrastructure buildout boosts demand for structural steel. Steel Dynamics is a top holding, and its electric arc furnaces can supply premium AI-grade steel, adding a new growth driver beyond traditional markets.
It explains a fresh demand source that lifts the whole steel sector, including STLD.
Aluminum segment losses and $16M charge The aluminum ramp-up posted a $33 million operating loss, and an additional $16 million non-cash impairment charge was recorded. These drag on overall profit and show the new aluminum business is still losing money, a real counterweight to the steel strength.
It is the main negative in the latest earnings and explains why the stock dipped despite a beat.
Analyst sees steel rally peaking Morgan Stanley kept Steel Dynamics at Equal-weight and raised its target to $270, but warned the supply-driven steel price rally is near its peak and profitability could decline after 2027 as new supply and imports ease the market. This caps upside enthusiasm.
It gives a balanced view on future pricing, a key driver for STLD's earnings.

ArcelorMittal SA (MT.AS)

Q3 202617 Jun – 30 Sep 2026

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ArcelorMittal Q3: Tech Deals and Brazil Growth Offset by War Damage and Profit Drop

AI and Amazon deals ArcelorMittal partnered with AWS for AI and agreed to supply Amazon with XCarb green steel. These moves should cut costs and provide a steady customer, supporting future earnings.
New partnerships that could improve efficiency and revenue.
EU carbon relief and Brazil expansion EU carbon-rule relief efforts could reduce a major regulatory burden. Brazil’s $961M Pecém expansion aims at higher-margin steel, potentially boosting long-term profitability.
New regulatory and expansion developments that could lower costs and improve margins.
Russian strikes on Kryvyi Rih Two Russian strikes halted primary output at Kryvyi Rih, killing three contractors and injuring 13. This adds repair costs, lost production, and recurring war risk, weighing on operations.
New geopolitical event that directly disrupts production and adds costs.
Sharp Q2 profit drop Q2 net profit fell to $683M from $1.79B, even as EBITDA rose to $2.06B. The profit decline may worry investors despite improving operating trends.
New earnings report showing a significant profit decline that could affect investor sentiment.

September 20263 Aug – 30 Sep 2026

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ArcelorMittal: Ukraine strikes halt output, Brazil expansion and AI push offset

Second missile strike halts Kryvyi Rih steel output A ballistic missile hit ArcelorMittal's Kryvyi Rih plant in Ukraine, killing two contractors and stopping primary steel production while ironmaking complex #1 is assessed. This is the second strike in five weeks, so lost output and repair costs weigh on earnings and the share price.
Directly hits production and earnings, the clearest negative force on MT.AS this period.
Earlier drone attack injured workers at same plant In mid-August a large Russian drone and missile attack on Kryvyi Rih injured 13 ArcelorMittal employees and killed one. It showed the war is repeatedly disrupting the company's Ukrainian assets, adding risk and cost that pressure the stock.
First of the two strikes; sets up the recurring war risk to ArcelorMittal's assets.
Brazil Pecém mill expansion targets higher-margin steel ArcelorMittal aims to decide by year-end on a $961M expansion of its Pecém mill in Brazil, adding a 1.5M-ton hot-rolled coil line. Turning cheap slab into higher-value rolled steel should lift future profits, supporting the share price.
A concrete growth investment that improves the long-term earnings mix.
Microsoft Azure and AI deal to cut costs over time ArcelorMittal expanded its Microsoft partnership, making Azure its main cloud platform and embedding AI and data tools across its IT systems. The goal is lower legacy IT costs and better efficiency, a slow-building positive for margins and the stock.
A structural efficiency driver that supports profitability beyond daily price moves.

Latest3 Aug – 30 Sep 2026

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ArcelorMittal: Ukraine strikes halt output, Brazil expansion and AI push offset

Second missile strike halts Kryvyi Rih steel output A ballistic missile hit ArcelorMittal's Kryvyi Rih plant in Ukraine, killing two contractors and stopping primary steel production while ironmaking complex #1 is assessed. This is the second strike in five weeks, so lost output and repair costs weigh on earnings and the share price.
Directly hits production and earnings, the clearest negative force on MT.AS this period.
Earlier drone attack injured workers at same plant In mid-August a large Russian drone and missile attack on Kryvyi Rih injured 13 ArcelorMittal employees and killed one. It showed the war is repeatedly disrupting the company's Ukrainian assets, adding risk and cost that pressure the stock.
First of the two strikes; sets up the recurring war risk to ArcelorMittal's assets.
Brazil Pecém mill expansion targets higher-margin steel ArcelorMittal aims to decide by year-end on a $961M expansion of its Pecém mill in Brazil, adding a 1.5M-ton hot-rolled coil line. Turning cheap slab into higher-value rolled steel should lift future profits, supporting the share price.
A concrete growth investment that improves the long-term earnings mix.
Microsoft Azure and AI deal to cut costs over time ArcelorMittal expanded its Microsoft partnership, making Azure its main cloud platform and embedding AI and data tools across its IT systems. The goal is lower legacy IT costs and better efficiency, a slow-building positive for margins and the stock.
A structural efficiency driver that supports profitability beyond daily price moves.

July 202617 Jun – 30 Jul 2026

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ArcelorMittal: AI deal, ETS relief push, mixed Q2 profit

AI partnership and Amazon steel supply deal ArcelorMittal is teaming with Amazon Web Services to use AI across its steelmaking, which should cut costs and lift efficiency. Amazon will also buy lower-carbon XCarb steel for years, giving a steady new customer. Both support future profits and the share price.
New technology and demand news that directly boosts ArcelorMittal's earnings outlook.
Steelmakers push for softer EU carbon rules ArcelorMittal and two peers asked the EU to pause rising carbon-permit costs until cheap power, hydrogen and carbon capture are ready. If Brussels listens, it lowers a big cost burden. The EU is now reviewing the system, so this is a live positive for the stock.
Regulatory relief would directly cut ArcelorMittal's costs and improve margins.
Q2 profit falls but underlying earnings rise Net profit dropped to $683 million from $1.79 billion a year ago, yet EBITDA rose to $2.06 billion and sales grew. The company expects higher shipments ahead and sees $1.8 billion more EBITDA from projects. The headline profit fall may worry some, but the operating trend is improving.
Latest earnings show a mixed picture that investors are weighing right now.

17 Jun – 30 Jul 2026

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ArcelorMittal: AI deal, ETS relief push, mixed Q2 profit

AI partnership and Amazon steel supply deal ArcelorMittal is teaming with Amazon Web Services to use AI across its steelmaking, which should cut costs and lift efficiency. Amazon will also buy lower-carbon XCarb steel for years, giving a steady new customer. Both support future profits and the share price.
New technology and demand news that directly boosts ArcelorMittal's earnings outlook.
Steelmakers push for softer EU carbon rules ArcelorMittal and two peers asked the EU to pause rising carbon-permit costs until cheap power, hydrogen and carbon capture are ready. If Brussels listens, it lowers a big cost burden. The EU is now reviewing the system, so this is a live positive for the stock.
Regulatory relief would directly cut ArcelorMittal's costs and improve margins.
Q2 profit falls but underlying earnings rise Net profit dropped to $683 million from $1.79 billion a year ago, yet EBITDA rose to $2.06 billion and sales grew. The company expects higher shipments ahead and sees $1.8 billion more EBITDA from projects. The headline profit fall may worry some, but the operating trend is improving.
Latest earnings show a mixed picture that investors are weighing right now.