Software and chip names felt the pressure today, as concerns about OpenAI triggered a pullback in AI-focused stocks. With big names such as Nvidia trading close to all-time highs, investors are worried about whether the huge investment in AI infrastructure will pay off.

Stock investors appear to be anxiously awaiting tech majors' earnings results after bidding up their shares over the last few weeks.

Stock Market Today: The Dow Jones index dipped, as the Nasdaq sold off. Tesla stock pulled back while Nucor rallied.

By Stephen Culp and Niket Nishant NEW YORK, April 28 (Reuters) - U.S. stocks closed lower on Tuesday, backing away from record closing highs as renewed concerns over the artificial intelligence boom weighed on technology stocks days before five of the sector's most high-profile companies were due to post quarterly results.

Why Marvell's mad at Poet. Seems somebody let the cat out of the bag too soon, and Marvell is not happy about it. As Poet revealed this morning, "all purchase orders received by [

Shares of the hard-drive maker were soaring on better-than-expected quarterly results and a strong outlook.

Live Updates Consumers Feeling Confident 1 hour ago Live American consumers are feeling better than expected. The Conference Board’s confidence index edged up to 92.8 in April, topping the 89.0 economists had penciled in.

The S&P 500 information-technology sector’s forward P/E ratio is at its lowest relative to five-year averages among all sectors in the index.

The S&P 500 and Nasdaq Composite retreated from their latest all-time highs Tuesday, as oil prices rose and investors digested a flurry of corporate earnings reports.

Michael Burry of The Big Short fame has taken quite a hit in recent sessions, with shares of Nvidia (NASDAQ:NVDA | NVDA Price Prediction) breaking out to hit a new all-time high to go with a jaw-dropping $5.

Here is how Advanced Micro Devices (AMD) and ADTRAN Holdings (ADTN) have performed compared to their sector so far this year.