Caterpillar's Tariff Paradox: The Policy That Gives and Takes from the Same Ticker

NUE (Nucor) is the most direct beneficiary. With import market share collapsing from roughly 25% to an estimated 14% of domestic finished steel supply, Nucor has been dictating the domestic price floor — pushing its Consumer Spot Price to over $1,000 per short ton by April 2026. Reduced foreign competition means the mill captures margin it historically had to concede.

STLD (Steel Dynamics) runs lean electric-arc-furnace operations that convert scrap metal into finished steel at lower energy cost than blast-furnace rivals. When the tariff wall lifts domestic spot prices, STLD's EAF cost structure turns every extra dollar of pricing power into outsized operating leverage. Its Sinton, Texas flat-rolled mill gives it direct exposure to the construction and industrial end-markets that are now reshoring.

CLF (Cleveland-Cliffs) sells directly into the same infrastructure and automotive supply chains that are being reshored. The company reports roughly 30% of steelmaking revenues come from infrastructure and manufacturing — a segment that grew as federal infrastructure spending accelerated. Cliffs recently restarted a blast furnace at its Cleveland Works to add 1.5 million tons of annual capacity in anticipation of sustained domestic demand. The tariff regime is doing its marketing for it.

Who Is Exposed

CAT (Caterpillar) is the paradox ticker. Reshoring rhetoric inflates its order book — data center buildouts, infrastructure projects, and domestic factory construction all need heavy equipment. But the company absorbs steel as a primary input across excavators, bulldozers, and engines. Management has guided to tariff-related cost headwinds that compress margins even as the top line benefits from the same policy environment that created the cost. The policy giveth the backlog and taketh the margin.

DE (Deere) faces a structurally similar trap. The company expects direct pretax tariff costs of roughly $1.2 billion in fiscal 2026 — double fiscal 2025 — with its Construction and Forestry segment most exposed. Deere absorbed a one-time $272 million IEEPA refund in Q2 2026 that obscured the underlying pressure; strip that out and the steel cost drag is persistent.

What to Watch

The spread between domestic hot-rolled coil prices and CAT's reported operating margins is the tell. If NUE and STLD keep raising their Consumer Spot Prices while CAT's price increases lag steel input inflation, margin compression deepens regardless of backlog strength. Watch CAT's quarterly pricing-versus-material-costs disclosures. A sustained tariff regime above 50% with no Section 232 exclusion relief for downstream industrials keeps the steel-mill trade intact — and keeps the equipment-maker squeeze alive.