Even if the Supreme Court rules Trump’s global tariffs are illegal, refunds are unlikely because that would be ‘very complicated,’ Hassett says

The article highlights legal and practical uncertainty around President Trump’s global tariffs enacted under the IEEPA, noting lower courts have ruled them illegal and the Supreme Court will ultimately decide. Through late September, IEEPA duties accounted for roughly $90 billion of $174 billion in tariff revenue; companies including Costco are already suing to secure potential refunds amid concerns about administrative complexity and who would receive refunds (importers have largely borne costs). Market participants are positioning for a possible ruling that could force refunds or prompt replacement tariffs under other statutes, creating policy and operational risk for importers, retailers and supply-chain exposed sectors.

Analysis

Market structure: A Supreme Court strike-down of IEEPA tariffs would create a one-time redistribution (refunds drawn from roughly $90bn of IEEPA-related receipts to date) that favors large importers/retailers (Costco, Walmart, Target) and tight-margin consumer discretionary chains that have been absorbing costs. If the Court upholds tariffs or admin substitutes other levies, margins remain compressed and pricing power shifts toward manufacturers or niche domestic suppliers able to pass through costs. Expect pricing volatility across import-heavy SKUs for 3–12 months as inventories and FX pass-throughs adjust.

Risk assessment: Key tail risks are (A) a Court-mandated widespread refund (administrative complexity but potentially ~$10–30bn recoverable to major importers over 6–18 months) and (B) rapid replacement tariffs under alternate statutes that neutralize refunds within 3–9 months. Hidden dependencies include RMB moves (exporters already cutting prices) and corporate accounting/tax treatments for refunds that can trigger one-time earnings volatility. Catalysts: SCOTUS decision timeline (likely 6–12 months), major importer suits rulings, and Treasury refund guidance.

Trade implications: Favor concentrated, hedged exposures to high-probability beneficiaries (Costco) via options to limit downside; underweight small-cap, import-reliant retailers and brands that can’t pass costs. Cross-asset: modest upward pressure on nominal bond yields if tariffs persist (inflation stickier); RMB weakness and commodity price softness remain possible near-term. Volatility in retail equity options will spike around court milestones (±30 days).

Contrarian angles: Consensus expects Court to strike down tariffs but underestimates administrative feasibility of refunds — refunds could be processed like tax credits and create durable, material EBITDA re-rates for large importers. Conversely, markets may underprice the government’s ability to replace IEEPA levies with slower but economically similar measures; mispricing exists in single-name small-cap retailers and in short-dated retail volatility that assumes a binary outcome.

Key Decisions for Investors

• Establish a 2–3% portfolio long in COST via a 6–9 month call spread (buy 6–9m ATM call, sell 25–35% OTM call) to capture an earnings re-rate from potential IEEPA refunds; trim half at +25% P/L or 30 days after a favorable Supreme Court ruling, stop-loss if underlying falls 12%.
• Implement a 1.5% long COST / 1.5% short TGT pair trade for 3–6 months to capture relative resilience of Costco's membership model and active litigation posture; unwind if spread moves against by 8% within 30 days or after SCOTUS decision.
• Buy protection: purchase 3-month XRT (retail ETF) 5% OTM puts sized to cover a 2% equity exposure to retail to hedge the scenario where tariffs are upheld or reimposed; cost should be no more than 0.3–0.5% of portfolio.
• Reduce exposure to small-cap, import-reliant retail names by 50% over the next 30 days (reallocate ~3% into WMT 1.5% and PG 1.5%) to lower margin volatility while maintaining defensive consumer staples and low-cost grocers exposure ahead of a likely 6–12 month policy resolution.