American Express stock has tripled in five years. A recent premium card relaunch suggests the good times aren't over yet.

The business has historically been able to raise the annual fees it charges for its cards, exhibiting pricing power. After seeing the stock's current valuation, investors might be more cautious. With ...

The combination of a strong brand and powerful network effect makes this a competitively advantaged business. No doubt, American Express is set to grow its revenue and earnings over the long run as ...