U.S. stocks closed sharply lower on Thursday, October 22, as doubts over the scale of artificial-intelligence spending triggered the Nasdaq Composite's worst session since June. The Nasdaq fell 2.6% to 26,009, while the S&P 500 lost 1.21% to 7,663. The Dow Jones Industrial Average finished almost unchanged at 52,868, protected by its heavier weight in defensive companies.
The AI trade...
