Marvell Technology and Flex join the S&P 500 index effective after market close on July 19, replacing Pool Corp and Campbell Soup Company. The S&P Dow Jones Indices announced the changes, reflecting a major reshuffling that underscores the stock market's accelerating shift toward semiconductor and electronics manufacturing.
Marvell Technology, a $30 billion semiconductor design company, manufactures chips for data centers, networking, and storage applications. The company benefits from robust demand driven by artificial intelligence infrastructure buildout and cloud computing expansion. Flex, a $24 billion electronics contract manufacturer and technology solutions provider, serves major clients across automotive, computing, and industrial segments.
Pool Corp and Campbell Soup, departing the index, represent the old guard of American business. Pool, a distributor of swimming pool and spa supplies, faces cyclical pressures from residential construction slowdowns. Campbell Soup, the 150-year-old packaged food maker, has struggled with shifting consumer preferences away from processed foods.
This index reconstitution reflects deeper market dynamics. The S&P 500 continues reweighting toward technology and semiconductors as those sectors drive earnings growth and investor returns. The addition of Marvell and Flex signals confidence in the semiconductor and advanced manufacturing tailwinds, particularly around AI proliferation and data center expansion. Both companies trade at elevated valuations reflecting growth expectations tied to these structural trends.
The move also underscores the index's living composition. Unlike static indices, the S&P 500 regularly adjusts to reflect the evolving American economy. Semiconductor and manufacturing equipment makers now command disproportionate influence over index returns. For passive investors tracking the S&P 500 through index funds and ETFs, this shift automatically increases exposure to technology hardware and reduces exposure to consumer staples.
Index funds tracking the S&P 500 will