Twilio Set to Join S&P MidCap 400

NEW YORK, Aug. 14, 2025 /PRNewswire/ -- Twilio Inc. (NYSE: TWLO) will replace Amedisys Inc. (NASD: AMED) in the S&P MidCap 400 effective prior to the opening of trading on Tuesday, August 19. S&P 500 and S&P 100 constituent UnitedHealth Group Inc. (NYSE: UNH) acquired Amedisys in a deal completed today.

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

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