Markets slide as investors retreat from risk assets and doubts grow over the AI boom's staying power.

The sell-off in tech stocks screeched to a halt Friday as investors stepped in to buy the dip: The Dow soared 1,207 points, or 2.47%, and hit 50,000 points for the first time ever. The tech-heavy ...

Strong market returns and the AI boom have meant new riches for some employees, but it's risky to have too much of your net worth tied up in one stock. Rather than selling stock to reinvest, ...