Marvell Technology Inc and Flex Ltd are set to join the S&P 500 following the index provider’s latest quarterly rebalance. S&P Dow Jones Indices says the changes are scheduled to take effect later this month, with Marvell expected to be added on June 22. The move will replace companies that are removed from the benchmark, including Pool Corp and Campbell Soup Co, according to multiple reports. After the announcement, Marvell shares rise sharply in premarket trading, reflecting investor reaction to the index inclusion. The updates also highlight, as described by market coverage, the role of the technology sector in the benchmark and how index membership can affect trading and demand for the added stocks. While the reports focus on the inclusion and replacement details and the immediate market response, they converge on the same core points: both Marvell and Flex are included in the S&P 500, the effective timing is tied to the June rebalance window, and Pool and Campbell’s are among the names that will be replaced.