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Marvell Technology jumps almost 9% in premarket after news it will join the S&P 500 index

CNBC · Jun 8, 2026, 11:21 AM

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  • Marvell Technology was up almost 9% in premarket trading on Monday after it was announced that the AI chipmaker would be joining the benchmark S&P 500 index.
  • The semiconductor company, which trades on the Nasdaq, will join the broad-market index on June 22 and will sit alongside the 500 leading companies in the U.S., S&P Global said in a press release on Friday.

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Marvell Technology was up almost 9% in premarket trading on Monday after it was announced that the AI chipmaker would be joining the benchmark S&P 500 index.

The semiconductor company, which trades on the Nasdaq, will join the broad-market index on June 22 and will sit alongside the 500 leading companies in the U.S., S&P Global said in a press release on Friday. Marvell was last seen up 8.8% in premarket trading and is up 210% year-to-date.

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