Twilio to Join S&P MidCap 400 in August 2025

Twilio will replace Amedisys in the S&P MidCap 400 index, effective August 19, 2025. UnitedHealth Group acquired Amedisys in a deal completed today. Twilio will be added to the index in the Information Technology sector, while Amedisys will be deleted from the Health Care sector. This change follows a summary of the adjustments that will take place prior to the open of trading on the effective date.

Twilio Inc. (NYSE: TWLO) will replace Amedisys Inc. (NASDAQ: AMED) in the S&P MidCap 400 index, effective August 19, 2025. This change follows UnitedHealth Group Inc. (NYSE: UNH) completing its acquisition of Amedisys today. The addition of Twilio to the index will take place in the Information Technology sector, while Amedisys will be removed from the Health Care sector.

Twilio, a cloud communications platform provider, offers APIs that enable developers to integrate messaging, voice, and video capabilities into applications. The company's services support various communication channels such as SMS, WhatsApp, and email, providing scalable solutions for businesses worldwide. Twilio's platform powers customer engagement for numerous companies, including major players like Uber and Airbnb.

The announcement of Twilio's inclusion in the S&P MidCap 400 index is expected to increase demand for the company's shares. Index inclusion typically boosts the demand for a company's stock as funds tracking the index must purchase the stock to maintain an accurate representation of the benchmark.

The change in the S&P MidCap 400 index is part of a broader adjustment that will take place prior to the open of trading on August 19, 2025. UnitedHealth Group's acquisition of Amedisys was completed today, which led to the deletion of Amedisys from the index.

References:
[1] https://www.investing.com/news/stock-market-news/twilio-stock-surges-after-inclusion-in-sp-midcap-400-93CH-4194094
[2] https://www.prnewswire.com/news-releases/twilio-set-to-join-sp-midcap-400-302530650.html
[3] https://www.wbrz.com/news/unitedhealth-group-completes-3-3-billion-acquisition-of-baton-rouge-based-hospice-company-amedisys/
[4] https://financialregnews.com/justice-department-to-require-unitedhealth-group-divestitures-in-amedisys-acquisition/