The heaviest weight on the market was Nvidia, whose chips are powering much of the move into AI. It sank 3.5%.

Walmart was one of the market’s heaviest weights and dropped 4.5% after reporting a profit for the spring that came up short of analysts’ expectations, while Nvidia and other Big Tech stocks held a bit steadier following two days of sharp swings.

Wall Street is holding a bit steadier following the prior day’s swoon for Nvidia, Palantir and other darlings swept up in the mania around artificial-intelligence technology. The S&P 500 slipped