Why is Marvell Technology stock sliding today?

Marvell Technology stock took a 8.1% dive today, trading at $200.70 after two days of steep declines. This sharp drop was prompted by Bloomberg's report of advanced talks between Marvell and laser maker Lumentum, potentially worth $83 billion. The deal's size, if finalized as an all-stock transaction, has raised concerns among shareholders about possible EPS dilution, ranging from neutral to over 10% by 2028.

The uncertainty surrounding financing, integration, and regulatory approvals has added to the selling pressure. An insider sale by Marvell executive Sandeep Bharathi also contributed to the overhang. The broader market was not supportive, with the Nasdaq composite, S&P 500, and Dow Jones Industrial Average all falling. Semiconductor peers faced similar challenges, making it difficult for sector-wide buying to buffer the stock's decline.

The combination of deal-related dilution fears, execution and regulatory uncertainties, a weak market for tech stocks, and Marvell's already high valuation have created significant downward pressure on the stock, pushing it toward an intraday low of $199.55, far below its 52-week high of $329.88.