Marvell Technology Inc. (NASDAQ:MRVL) will be added to the S&P 500 index effective before the market opens on June 22, the Q2 quarterly rebalance, alongside contract manufacturer Flex Ltd. (FLEX). 

The two companies replace Campbell’s Co. (NASDAQ:CPB) and Pool Corp. (NASDAQ:POOL), both of which slide down to the S&P SmallCap 600.

MRVL stock is climbing again. Watch the price action here. 

Marvell shares are trading 9% higher Monday morning. The move came after a bruising session on Friday when the stock fell nearly 17%, but zoomed out, the numbers still tell a remarkable story. 

MRVL is up approximately 230% in 2026 alone, a run that few mega-cap names can match.

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MRVL In The S&P 500 

Marvell’s case for inclusion is hard to argue with. The California-based semiconductor designer has become one of the defining names in AI infrastructure, supplying custom silicon and networking chips to the hyperscalers building out data center capacity at a pace the industry has never seen. 

At the time of the index announcement, Marvell’s market capitalization sat at roughly $230 billion, according ...