American Express (NYSE:AXP) has outperformed the market over the past 5 years by 3.44% on an annualized basis producing an average annual return of 16.72%. Currently, American Express has a market capitalization of $182.35 billion. Buying $1000 In AXP: If an investor had bought $1000 of AXP stock 5 years ago, it would be worth $2,192.62 today based on a price of $256.50 for AXP at the time of writing. American Express’s Performance Over Last 5 YearsFinally — what’s the point of all this? The key insight to take from this article is to note how much of a difference compounded returns can make …