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:

Effective Date	Index Name		Action	Company Name	Ticker	GICS Sector
August 19, 2025	S&P MidCap 400	Addition		Twilio	TWLO	Information Technology
August 19, 2025	S&P MidCap 400	Deletion		Amedisys	AMED	Health Care

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SOURCE S&P Dow Jones Indices

Twilio Set to Join S&P MidCap 400