Major U.S. stock indices closed sharply higher, with technology stocks leading the rebound. The Nasdaq 100 erased all of Wednesday's losses, while the S&P 500 also recovered its decline from the prior session. The Dow Jones Industrial Average rebounded by more than 600 points, clawing back over half of Wednesday's roughly 1,100-point slide. Citadel agreed to purchase the public equity portfolio of AI-focused hedge fund Situational Awareness after the fund suffered steep losses on leveraged AI bets. Apple is scheduled to report shortly, setting the stage for another potentially market-moving event to cap off an eventful day.