amex ©Daniel Foster American Express (NYSE:AXP) reported first-quarter results on Thursday that exceeded Wall Street expectations, supported by strong card spending, rising balances, and solid fee income growth. Shares of the payments company gained about 1% in premarket trading by 07:06 ET. Strong spending and fee growth drive results The company posted earnings per share of $4.28, surpassing analyst estimates of $4.00. Revenue reached $18.91 billion on an FX-adjusted basis, marking a 10% year-on-year ...