Nasdaq-100 Shake-Up: These 6 Stocks Are In, 6 Are Out — And It Could Trigger Big Moves

Benzinga · Dec 15, 2025 19:01

The Nasdaq-100 Index has announced its annual reconstitution, adding six new companies and removing six, effective Dec. 22.

Six Stocks Added, Six Dropped From Index

The six companies being added to the index are:Alnylam Pharmaceuticals, Inc.(NASDAQ:ALNY),Ferrovial SE(NASDAQ:FER),Insmed Inc.(NASDAQ:INSM),Monolithic Power Systems, Inc. (NASDAQ:MPWR),Seagate Technology Holdings plc(NASDAQ:STX) andWestern Digital Corp.(NASDAQ:WDC).

The six companies being removed from the index are:Biogen Inc.(NASDAQ:BIIB),CDW Corporation(NASDAQ:CDW),GlobalFoundries Inc.(NASDAQ:GFS),Lululemon Athletica Inc.(NASDAQ:LULU),ON Semiconductor Corporation(NASDAQ:ON) andThe Trade Desk, Inc....

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