AXP is trading at $360.12, down 4.1%, as investors react to President Trump's January 9 proposal to cap credit card interest rates at 10%.

  • A Jefferies analyst calculated that even AXP's net interest margin could compress from 9.2% to 5.7% under the cap, significantly impacting profitability.
  • The proposal has triggered immediate selling pressure across the credit card sector, with Capital One and Synchrony each down 9% in premarket trading, despite legal experts doubting the proposal's viability.