Shares of technology companies rose as an artificial-intelligence craze resumed.

Nvidia shares rallied, testing all-time highs, as investors continued to pile into the high-performance chip maker on AI growth hopes. Other major AI players, including and Microsoft rose, too.

The Securities and Exchange Commission is scrutinizing internal communications by OpenAI Chief Executive Sam Altman as part of an investigation into whether the company's investors were misled.

Apple shares slipped as invstors voiced impatience about the gadget giant's lack of a clear AI business strategy.

Snowflake shares plunged after the maker of cloud-computing software posted earnings shy of Wall Street expectations.

Write to Rob Curran at

(END) Dow Jones Newswires

02-29-24 1733ET