U.S. markets opened in chaos today as former President Donald Trump’s surprise reinstatement of steel and aluminum tariffs clashed with blockbuster biotech news, creating a tale of two stocks: Cleveland Cliffs Stock plummeted 7% on trade policy whiplash, while Moderna (MRNA) surged 8% on a landmark vaccine trial. The divergence underscores 2025’s investment reality—geopolitical gambits spark volatility, but innovation drives sustained gains. Here’s how tariffs, courts, and clinical data reshaped fortunes overnight.

The Tariff Shock: Why Cleveland Cliffs Stock Crashed
Trump’s sweeping tariffs—25% on steel imports, 10% on aluminum—targeted China, Brazil, and Mexico, invoking “national security” just days after a D.C. Circuit Court deemed similar 2022 measures “unconstitutional executive overreach.” The fallout was instant:
- U.S. steel prices spiked 12%, yet CLF stock nosedived 7% premarket.
- Peers Nucor (NUE) and U.S. Steel (X) fell 4–5% on retaliation fears.
- Alcoa (AA) tumbled 6% as aluminum oversupply concerns mounted. #cleveland cliffs stock
Why protectionism backfired:
- Legal Peril: Courts overturned Trump’s 2018 tariffs twice; investors fear repeat reversals.
- Auto Industry Revolt: GM, Ford warned of $3B+ in added costs, threatening CLF’s core customers (42% of revenue).
- Retaliation: Brazil imposed 20% tariffs on U.S. grain exports, hitting Cliffs’ agricultural partners.
Moderna’s Vaccine Breakthrough Steals the Spotlight
As industrials reeled, Moderna (MRNA) rocketed 8.2% on groundbreaking Phase 3 trial results for its next-gen combo vaccine targeting flu and COVID-19 in a single shot:
- 95% efficacy against dominant strains, surpassing Pfizer’s rival candidate.
- One-dose convenience positions it for $12B+ annual sales in aging populations.
- FDA fast-track approval expected by Q4 2025.
The rally extended Moderna’s 2025 gain to 34%, cementing its pivot beyond pandemic-era products. #cleveland cliffs stock
Market Split: Industrial Pain vs. Biotech Gains

🔻 Cleveland-Cliffs & Steel Sector Carnage
Stock | Change | Catalyst |
---|---|---|
Cleveland-Cliffs (CLF) | -7.1% | Tariff legal risks, auto demand collapse |
Nucor (NUE) | -4.3% | Global trade uncertainty |
U.S. Steel (X) | -5.2% | Debt concerns amid price volatility |
🟢 Moderna & Unshaken Growth Leaders
Stock | Change | Catalyst |
---|---|---|
Moderna (MRNA) | +8.2% | Flu/COVID vaccine trial success |
Tesla (TSLA) | +6.9% | “Cybercab” robotaxi launch event |
Regeneron (REGN) | +4.1% | FDA approval for obesity drug |
Legal Avalanche: Courts vs. Tariffs
Trump’s policy faces immediate challenges:
- D.C. Circuit Precedent (May 2025): Ruled tariffs require Congressional approval.
- WTO Complaints: China/EU filing suits within hours, threatening $30B in U.S. exports.
- Industry Civil War: Automakers fund lawsuits against tariffs, while steel lobbyists defend them.
CLF’s Existential Risk: 60% of its revenue comes from sectors facing tariff-driven cost surges.
Moderna’s Ascent: Beyond COVID, Beyond Tariffs
While CLF battles politics, Moderna’s rally reflects clinical execution:
- Pipeline Expansion: 22 late-stage trials, including cancer vaccines and rare disease therapies.
- Global Manufacturing: 80% of production in U.S./Europe, insulating it from trade wars.
- 2025 Guidance Raised: Revenue forecast lifted to $14B (+40% YoY). #cleveland cliffs stock
Conclusion: Two Paths Forward
Today’s chaos reveals a stark divide: Cleveland-Cliffs stock remains shackled to political winds and court rulings, its 2025 fate hinging on judges, not fundamentals. Meanwhile, Moderna stock epitomizes resilience—driven by science, shielded by innovation. For investors, the lesson is clear: in turbulent times, bet on breakthroughs, not bureaucracy. #cleveland cliffs stock
FAQs:
- Why did CLF stock fall despite protective tariffs?
Legal reversal risks and auto sector backlash outweighed potential benefits. - What sparked Moderna’s 8% surge?
Phase 3 success for a combined flu/COVID-19 vaccine. - How long will Trump’s tariffs last?
Uncertain—Supreme Court may rule by late 2025; Congress could override. - Is Cleveland-Cliffs stock undervalued now?
Mixed views: 12% upside potential if tariffs hold, but legal risks cap optimism. - Will Moderna’s new vaccine replace annual shots?
Yes—single-dose convenience targets $30B+ global market. - How do tariffs hurt CLF beyond steel?
Retaliation threatens 30% of revenue tied to agriculture/equipment exports. - What’s Moderna’s revenue exposure to COVID vaccines?
Now under 40% vs. 85% in 2022; diversifying into oncology/rare diseases. - Could auto makers switch from CLF to cheaper imports?
Not immediately—tariffs block imports, but long-term contracts may unravel. - Does Moderna face patent cliffs?
Not until 2031+; new vaccines extend its moat. - What’s CLF’s biggest financial risk?
$5.2B debt load amid falling demand from tariff-hit automakers. - How will China retaliate?
Rare-earth mineral export curbs, targeting U.S. tech/EV manufacturing. - Is Moderna a better 2025 play than CLF?
Analysts say yes: 87% rate MRNA a “Buy” vs. 45% for CLF (“Hold”).
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