Market reaction and context
Shares of Marvell Technology climbed over 9% on Monday following word that the chipmaker will join the S&P 500 at the end of June. The move adds to a recent stretch of strong performance for the stock, which has already risen sharply in recent weeks.
Since May 27, Marvell's shares have increased by roughly 59% after the company projected that its custom-chip segment would top $10 billion in revenue in fiscal 2029 and after a public remark from Nvidia's CEO characterizing Marvell as the next "trillion-dollar company." Despite that rally, the stock had fallen 16.7% in regular trading on the previous Friday amid a broader selloff that erased about $1.3 trillion from the chip sector's market value. At the last close before Monday's move, Marvell's market capitalization stood near $230 billion.
What the S&P 500 inclusion means
S&P Dow Jones Indices announced late on Friday that Marvell will replace Pool Corp, a distributor of swimming pool equipment, in the benchmark index. The change is set to take effect before markets open on June 22. When an index adds a company, exchange-traded funds and other index-tracking vehicles that follow that benchmark must adjust their holdings to match the new composition. That process typically requires those funds to buy shares of the newly included name, producing passive inflows that can lift the stock around the time of inclusion.
Business drivers and industry backdrop
Marvell and larger rival Broadcom both design custom chips for data centers operated by cloud companies. That market has expanded as major technology firms seek alternatives to Nvidia's AI processors, which are described in the market as expensive and difficult to source. The report noted Marvell's recent financial milestone of reporting a GAAP profit in the quarter ended December and across its most recent four quarters, a condition that had previously acted as a barrier to S&P 500 inclusion.
The wider semiconductor sector has moved notably higher this year despite the recent shakeout. The Philadelphia Semiconductor Index was reported as up more than 72% year to date, and Marvell has more than tripled in value to reach record highs during the rally.
Implications for investors
Inclusion in a major benchmark tends to increase visibility and demand from passive investors, which can support a stock's price in the near term. At the same time, the article underscores the volatility present in chip stocks, illustrated by the substantial one-day decline during the recent sector-wide selloff and the resulting large swings in market value.
Note: The details in this article reflect the facts and figures as reported, including the timing of index changes, recent stock performance, market capitalization, revenue guidance for Marvell's custom-chip business, and comments attributed to Nvidia's CEO.