Stock market today: Dow slides 500 points, S&P 500 notches 4th day of losses as Nvidia earnings loom

US stocks retreated on Tuesday as worries about an AI bubble and the broader US economy continued to set markets on edge, with a pivotal Nvidia (NVDA) earnings report and shutdown-delayed jobs data on the horizon. The Dow Jones Industrial Average (^DJI) fell around 1.1%, or nearly 500 points, adding to a rough four-day sell-off. The tech-heavy Nasdaq Composite (^IXIC) pulled back nearly 1.2%. The S&P 500 (^GSPC) was roughly 0.8% lower, rebounding from earlier in the session but still notching its fourth c ...