American Express shares declined by approximately 7% following President Trump's proposal to cap credit card interest rates at 10%. Industry executives, including JPMorgan’s CFO, warned that such a cap could force issuers to restrict access to credit or exit the business entirely. At American Express, management is assessing options such as trimming card rewards or raising annual fees on select products to offset lost interest income. Analysts note that the company’s premium brand positioning may allow it to pass through more cost increases than peers and could position AmEx to capture share from less resilient competitors.

Through the first nine months of 2025, American Express reported revenue of $53.2 billion, up 9% year-over-year, and net income of $8.4 billion, a 5% increase. The company’s focus on an affluent customer base has underpinned strong spending trends, even as consumers pull back on discretionary purchases in other segments. Management highlights that its closed-loop network and fee income from merchants help stabilize earnings during rate volatility, distinguishing AmEx from peers more reliant on interest revenue.

American Express maintains a market capitalization of roughly $247 billion, with a gross margin of 61.04% and a dividend yield of 0.92%. The company’s strong capital position supports ongoing share repurchases and dividend growth, which management intends to continue, provided regulatory changes do not materially impact profitability. Analysts view the current yield and buyback capacity as attractive relative to other large card issuers.

If a regulatory rate cap takes effect, American Express may leverage its premium rewards ecosystem to retain cardholders by offering differentiated benefits. Potential actions include recalibrating points-based rewards, introducing new co-brand partnerships, and selectively adjusting fee structures. While reduced interest income poses a risk, AmEx’s higher-income customer segment and strong brand loyalty could enable it to gain share from banks that lack the same pricing power. Investors will be watching management’s detailed response plan at the next earnings update.