+ Is American Express Shrinking? Daniel Jennings, July 21, 2021July 21, 2021, Retail, American Express (AXP), American Express Company (NYSE: AXP), Amex (AXP), Does Mr. Market Overvalue American Express (AXP)?, Is American Express losing money?, Is American Express Shrinking?, 0 I calculate the total number of American Express (AXP) cards on Earth fell from 112.8 million in 2017 to 112...