BUZZ-Marvell jumps after S&P Dow Jones says co to join S&P 500

S&P Global, Inc.
Marvell Technology

S&P Global, Inc.

SPGI

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Marvell Technology

MRVL

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**Shares of chipmaker Marvell Technology MRVL.O rise 6.4% to $280.5 in extended trading

** MRVL is set to join benchmark S&P 500 .SPX index, S&P Dow Jones Indices says

** Up to last close, stock had more than tripled YTD