Trump wants to cap credit card interest rates at 10%. Would that work?

President Trump has proposed a one-year, 10% cap on credit card interest rates effective Jan. 20, a move that would require Congressional action and enforcement by agencies such as the CFPB/FTC. U.S. outstanding credit card debt is $1.23 trillion (Sept.) with an average card interest rate of 22.83% (Aug.) and average card balances of $6,555 (Nov.); proponents estimate a 10% cap could save consumers about $100bn annually while critics (EPC, BPI) warn it could curtail or close a large share of accounts (est. 175–190m) and restrict credit access for lower-score borrowers. The plan intersects antitrust proposals on swipe fees and faces legal/enforcement hurdles, creating policy uncertainty that could pressure card issuers, payment networks and consumer lending dynamics.

Analysis

Market structure: A 10% cap is an acute profit shock to card issuers and interest-reliant lenders; Visa (V) and Mastercard (MA) face direct political and regulatory risk to interchange economics while issuers (COF, AXP, large banks) would see NIM compression and likely curtail unsecured credit for lower FICO cohorts. Winners include credit bureaus (TRU) and fraud/underwriting fintechs as demand for tighter risk pricing and secured/BNPL alternatives rises; merchants may face higher negotiated processing fees, shifting nominal margin from issuers to acquirers.

Risk assessment: Tail risk is legislative passage plus strict enforcement (CFPB/FTC empowered) producing rapid credit-line contraction and a consumer-spending shock—GDP downside risk concentrated in next 3–12 months; a longer-than-expected cap (>1 year) would materially compress issuer ROEs (>200–400 bps on card portfolios). Hidden dependencies include ABS funding lines and bank wholesale funding spreads—if card ABS spreads widen 100–200bps, banks will tighten credit faster. Key catalysts: midterm/committee votes, CFPB budget decisions in next 30–90 days, industry litigation.

Trade implications: Near-term (days–weeks) expect elevated volatility in V/MA; implement cheap directional exposure via options and calibrated equity shorts. Medium-term (3–12 months) favor long TRU and long secured-lending/BNPL providers; reduce exposure to pure-play card-issuing banks and consumer discretionary names dependent on revolving balances.

Contrarian view: Markets may overprice permanent interchange destruction—networks earn substantial non-interest revenue and can shift fee mixes; a short, one-year cap could simply accelerate securitization and off-balance-sheet risk transfer rather than destroy long-term cash flows. Historical state caps (Arkansas) show credit deserts not consumer relief, implying winners among credit-risk managers and alternative lenders, so front-running issuer downside without accounting for ABS/merchant fee pass-through risks could be overstated.

Key Decisions for Investors

• Establish a 2% portfolio notional short in V (ticker V) and 2% in MA via 3-month put buys: buy 10–15% OTM puts expiring in ~90 days sized to 2% each; set a take-profit at +60% premium and cut at -50% premium to limit theta bleed — rationale: near-term legislative headlines will drive volatility and downward re-rating.
• Initiate a 1.5% long position in TransUnion (TRU) equity with a 6–12 month horizon; target +25–35% upside if underwriting demand and bureau services rise; stop-loss at -12% or if CFPB remains shuttered and bill momentum collapses in 60 days.
• Implement a pair trade: overweight high-deposit bank (JPM, +2% overweight) versus underweight card-dependent issuer (Capital One COF or American Express AXP, -2%); time horizon 3–12 months, close if bill fails in Senate or spreads on card ABS widen >150bps.
• Use structured, lower-cost option protection: buy 3-month 12% OTM put spreads on V/MA (buy 12% OTM puts, sell 30% OTM puts 50% notional) sized to 1–1.5% each to cap downside with limited cost; immediately monitor House/Senate vote counts and CFPB appropriations—if a bill passes committee or reaches 50 Senate co-sponsors, increase put size by 50% within 48 hours.