With news of upcoming changes to its most popular product, American Express ( AXP 2.23%) was a winner on the stock market as the trading week began. The company's shares increased more than 2% in ...

Bloomberg journalists discuss today's biggest winners and losers in the stock market. Listen for analysis on the companies ...

Buoyed by positive momentum for shares of American Express and Goldman Sachs, the Dow Jones Industrial Average is trading up Monday afternoon.