U.S. stocks slipped after the Federal Reserve held its main interest rate steady and broke a run of cuts that began in September. The S&P 500 fell 0.5% Wednesday. The Dow Jones Industrial Average dipped 0.

Rebounding tech stocks drove U.S. indexes higher Tuesday, a day after they tumbled on doubts about whether the artificial-intelligence frenzy really needs all the dollars being poured

Shares of Nvidia (NASDAQ: NVDA) were sinking Wednesday. The company's stock fell 6.2% as of 2:20 p.m. ET, but lost as much as 6.9% earlier in the day. The move comes as the S&P 500 (SNPINDEX: ^GSPC) and Nasdaq Composite (NASDAQINDEX: ^IXIC) lost 0.

Nvidia’s stock is off to a positive start after a wild Monday. Shares of the chipmaking giant were recently up about 2%, easily outpacing the slight rise in the S&P 500. The first hours of Tuesday’s session followed a start to the week that marked Nvidia’s (NVDA) worst day in years,