NEW YORK, Dec. 31, 2021 /PRNewswire/ -- iTeos Therapeutics Inc. (NASD: ITOS) will replace Magellan Health Inc. (NASD: MGLN) in the S&P SmallCap 600 effective prior to the opening of trading on Wednesday, January 5. S&P 500 constituent Centene Corp. (NYSE: CNC) is acquiring Magellan Health in a deal expected to be completed soon pending final conditions.

Following is a summary of the changes that will take place prior to the open of trading on the effective date:

Effective Date

Index Name      


Company Name


GICS Sector

January 5, 2022

S&P SmallCap 600


iTeos Therapeutics


Health Care

S&P SmallCap 600


Magellan Health


Health Care

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