Marvell Technology, Flex to join S&P 500 in technology index boost

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Dan Blystone

06.06.2026

Marvell Technology, Flex to join S&P 500 in technology index boost — Tech giants join S&P 500

A fresh reshuffle of the S&P 500 is bringing two technology-linked manufacturers into the benchmark on June 22. The change underscores the sector's rising weight in U.S. equities as artificial intelligence infrastructure and electronics production remain key market themes.

Highlights

Marvell Technology and Flex will join the S&P 500 on June 22, replacing Pool Corp and The Campbell’s Company.
Marvell Technology surged 5% and Flex rose 4% in extended trading after their index inclusion, following Nvidia's $2 billion investment in Marvell.
The S&P 500 reshuffle underscores technology's increasing market weight, with recent additions including Veeva Systems, AppLovin, Datadog, DoorDash, and Robinhood.

S&P 500 changes take effect June 22

As reported by a press release to CNBC, Marvell Technology and Flex are set to join the S&P 500 on June 22, replacing Pool Corp and The Campbell’s Company. The additions make Marvell the latest semiconductor company to enter the benchmark index.

Marvell, which makes components and products tied to the AI infrastructure boom, rose 5% in extended trading. Earlier this week, the chipmaker also got a lift after Nvidia Chief Executive Jensen Huang said Marvell could be the "next trillion-dollar company" while discussing the partnership between the two companies, and Nvidia invested $2 billion in Marvell.

Flex rose 4% in extended trading. The company, formerly known as Flextronics, provides manufacturing services to major technology companies including Apple and Nvidia.

Technology sector gains more market weight

The index changes highlight the growing importance of technology companies in the broader stock market. In recent years, Veeva Systems, AppLovin, Datadog, DoorDash and Robinhood have also been added to the S&P 500.

Marvell is headquartered in Santa Clara, California, and was founded in 1995 to make parts for spinning disk drives. Flex is based in Singapore and operates factories across the U.S. and Asia, reflecting the global manufacturing footprint behind the technology supply chain.

Our earlier update on the market’s sector rotation described how investors moved into defensive groups like consumer staples and healthcare while pulling back from riskier technology and crypto-linked stocks. We also noted broad weakness in chipmakers after earnings and guidance disappointments, highlighting how sentiment can quickly swing even for major AI- and semiconductor-related names.

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