Navitas Semiconductor Corp. witnessed a surge in message volume among retail investors on Stocktwits last week. One of the reasons for the rise in retail interest is an upcoming announcement from the company – Navitas is scheduled to reveal a “breakthrough in power conversion” that includes

Nvidia sells the lion’s share of the parallel compute underpinning AI training, and it has a very large – and probably dominant – share of AI inference.

The hardest thing about making custom AI chips for large, demanding customers might be the expectations that go with it. Shares of Marvell Technology slid Thursday morning following its quarterly report.

"While unwelcome, volatility is common in semi stocks and does not always presage a fundamental shift," Bank of America said.

Marvell Technology's shares closed down 19.8%, marking their worst day in more than two decades and weighing on rival chipmakers' stocks on Thursday, after an in-line revenue forecast gave investors another reason to be jittery about spending on AI infrastructure as a years-long rally shows signs of cooling.

Broadcom (NASDAQ: AVGO) stock is losing ground today. The company's share price was down 5.8% as of 2:30 p.m. ET. Meanwhile, the S&P 500 index was down 2% at the same point in the day's trading, and the Nasdaq Composite index was down 2%.

The chipmaker fell sharply early Thursday as its slight earnings outlook failed to impress investors looking for a boost to the AI trade.