The S & P 500 and Dow Jones Industrial Average rose slightly Wednesday, while the Nasdaq fell for a third straight session as investors awaited Nvidia's earnings release, which could determine recent stock moves。

In after-hours trading, Nvidia shares rose 6% as the company expects to beat expectations for fiscal first-quarter revenue due to strong demand for its artificial intelligence chips.。On the day, Nvidia shares plunged 2.85%, adding to the more than 4% drop seen by chipmakers the day before。

Nvidia shares are up about 40% this year, making them the biggest gainer in the S & P 500 after rising about 240% in 2023。Analysts had warned that the stock's high valuation could lead to a sharp decline if the company's performance falls short of expectations。

"The market is driven by excitement and enthusiasm for AI, and of course the star of AI is Nvidia," said Jason Weir, chief investment officer at Albion Financial Group in Salt Lake City, Utah.。"

S & P 500 Index Closes at 4,981.80 points, up 0.13%。Nasdaq down 0.32%, to 15,580.87 points, while the Dow Jones industrial average rose 0.13%, to 38,612.24 points。

Minutes of the Fed's January meeting show that most policymakers are concerned about the risk of cutting rates too quickly, and there is widespread doubt about the duration of current rates。

New York Stock Exchange gains roughly equal declines。On NASDAQ, the number of decliners is 1 for gainers.73 times。

Volume on U.S. exchanges was relatively low, with total turnover of 10.5 billion shares, compared with an average of 11.7 billion shares in the previous 20 days.。