American Express reported a 9 percent rise in quarterly profit as more customers used its credit cards in a recovering U.S. economy.
Net income rose to $1.53 billion, or $1.43 per share, for the second quarter ended June 30, from $1.41 billion, or $1.27 per share, a year earlier.
Read MoreVisa earnings beat Street estimates
Total revenue, net of interest expense, rose 5 percent to $8.66 billion.
American Express shares were down slightly in extended trading. (Click here to track the company's stock.)
— By Reuters with CNBC