The company will replace swimming pool equipment distributor PoolCorp on the benchmark index before the start of trading on June 22. Marvell shares jumped nearly 6% in extended trading.

The Philadelphia semiconductor index, known as SOX, hit a record high as AMD, Marvell and other chip stocks rose.

Marvell Technology nears S&P 500 inclusion after its stock tripled in 2026, boosted by a Jensen Huang endorsement and surging AI chip demand.