Business SummaryBrief at 11:16 a.m. EDT

Wall Street remained volatile as artificial-intelligence stocks swung after last week’s sharp losses. The S&P 500 slipped 0.2% on Tuesday after trading between an early 1% gain and a midmorning 0.6% decline. The Dow Jones Industrial Average added 162 points, while the Nasdaq Composite fell 0.6%. Broad AI-related weakness accompanied firms supplying computer chips, memory and other building blocks of the AI boom pulling back from earlier gains. The session also saw energy-market movement, with Brent crude down about 3%, helping airline stocks advance on the day. The moves underscore ongoing volatility in AI names and the influence of energy prices on related sectors.