The artificial intelligence investment wave is once again reshaping the composition of America’s most important stock market benchmark.
Chipmaker Marvell Technology and electronics manufacturer Flex will join the S&P 500 on June 22, replacing Pool Corporation and The Campbell’s Company in a move that further highlights the growing dominance of technology and AI-linked businesses in U.S. equity markets.
The announcement sent Marvell shares higher in extended trading, adding to the momentum that has already transformed the company into one of the biggest beneficiaries of the AI infrastructure spending boom. Flex also advanced after investors welcomed its inclusion in the benchmark.
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For Marvell, entry into the S&P 500 marks another milestone in a remarkable transformation from a company once best known for storage and networking chips into a critical supplier of AI-era infrastructure.
The Santa Clara-based firm designs a range of technologies that sit behind the explosive growth in artificial intelligence computing. While Nvidia’s graphics processors have become the face of the AI revolution, the massive data centers powering AI models rely on a broader ecosystem of networking, connectivity, and data-transfer technologies, areas where Marvell has become increasingly influential.
The company’s profile received another boost this week when Nvidia CEO Jensen Huang publicly described Marvell as a potential “next trillion-dollar company” during an appearance with Marvell CEO Matthew Murphy at Computex in Taiwan.
Huang argued that as AI workloads become distributed across thousands of interconnected processors inside giant data centers, networking technologies become just as important as computing power itself.
Nvidia recently committed roughly $2 billion to Marvell and has increasingly emphasized the importance of high-speed connectivity technologies in building next-generation AI infrastructure. The rise of AI clusters containing tens of thousands of chips has turned networking into one of the fastest-growing segments of the semiconductor industry.
Marvell’s elevation to the S&P 500 also indicates that there is a shift in investor priorities. Companies connected to AI computing, cloud infrastructure, and digital platforms have increasingly displaced traditional industrial and consumer businesses in major stock indices.
In recent years, technology-focused firms such as Veeva Systems, AppLovin, Datadog, DoorDash, and Robinhood have been added to the benchmark as the digital economy continues to command a larger share of market value.
However, the inclusion of Flex underpins that investors are increasingly rewarding companies that provide the physical infrastructure required to support AI expansion.
Though less visible than chipmakers or software developers, Flex plays a crucial role in global technology supply chains. The company manufactures electronic systems and components for some of the world’s largest technology firms, including Apple and Nvidia.
As demand for AI servers, networking equipment, and advanced computing hardware accelerates, contract manufacturers such as Flex are seeing increased opportunities to participate in the industry’s growth. What began as enthusiasm around generative AI software has expanded into a massive capital spending cycle involving semiconductors, networking equipment, memory chips, power systems, cooling infrastructure, and manufacturing services.
Investors are now seeing these supporting technologies as essential beneficiaries of an AI spending boom that is expected to run into the trillions of dollars over the coming decade.
For Marvell in particular, S&P 500 inclusion carries practical benefits beyond prestige. Membership typically triggers purchases by index funds and exchange-traded funds that track the benchmark, creating a new source of demand for the stock. It also enhances visibility among institutional investors and boosts the company’s standing as one of the semiconductor industry’s major players.
Founded in 1995, Marvell originally built its business supplying components for hard disk drives. Three decades later, it finds itself at the center of a technological transformation that is redefining global computing infrastructure.
Its addition to the S&P 500 serves as another indication that Wall Street increasingly sees the AI revolution not as a temporary market trend, but as a structural shift that is reshaping the hierarchy of corporate America.