American Express and Visa are both long-term Berkshire investments. Visa's lightweight business model allows it to expand ...

Mastercard (MA), and American Express (AXP) are falling from reports from the Wall Street Journal saying that Walmart (WMT) ...

A report that large multinational merchants are exploring ways to bypass traditional credit-card fees presents investors with ...

American Express and Visa are typically known as credit card companies, but they operate under different business models. American Express is a bank that issues its own cards, handles its own ...