Why American Express Stock Fell 6.5% Friday Morning

American Express (AXP) fell 6.5% Friday morning despite reporting second-quarter earnings per share of $4.53, beating the $4.40 estimate, and raising full-year revenue guidance to 10% growth. The selloff signals trader concerns over margin compression as management channels revenue gains into growth initiatives and card member perks rather than earnings expansion.

Operating expenses climbed 12% year-over-year, outpacing revenue growth and pressuring profitability. The company is prioritizing member acquisition and retention over near-term margin optimization, a strategic shift that spooked investors focused on bottom-line performance. Credit quality metrics remained solid, but that failed to offset worries about the expense trajectory.

The stock now trades at 15.9x forward earnings, a valuation multiple that reflects diminished confidence in near-term profit acceleration despite the top-line beat and guidance raise.