Stock market today: S&P 500, Nasdaq slip as AI angst overshadows hopes for end to US shutdown

Tech led a retreat in US stocks on Tuesday amid a revival in AI worries, slipping back from a rally fueled by optimism that Washington may soon end the record-breaking government shutdown. The S&P 500 (^GSPC) fell below the flat line, and the Nasdaq Composite (^IXIC) slipped roughly 0.5%. The Dow Jones Industrial Average (^DJI), which includes fewer tech stocks, inched up 0.2%. The pullback follows a roaring start to the week for stocks as hopes for the AI trade revived. Testing that faith, SoftBank Gro ...