US stock market keeps setting records as AI excitement keeps building

The S&P 500 climbed 0.4% to set an all-time high following mixed trading on Monday. The Dow Jones Industrial Average dipped 63 points, or 0.1%, while the Nasdaq composite rose 0.7% to its own record. A frenzy around AI has been one of the main reasons Wall Street has been hitting record after record, though that's also raising worries that prices have potentially shot too high. Much of the furor around AI in the last couple weeks has come from OpenAI, which has quickly grown into a $500 billion company. I ...