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WSJ Tech News Briefing · Friday, August 14, 2026

Reddit Joins S&P 500 Index

Social media platform Reddit is set to be included in the S&P 500 index, replacing Avalon Bay Communities. Avalon Bay Communities is being acquired by Equity Residential, another S&P 500 member, creating the vacancy. Reddit shares saw a significant increase of over 13% in morning trading following the announcement.

tickerSPYcompanyRedditcompanyAvalon Bay CommunitiescompanyEquity Residential

The tape

3 quotes
And social media platform Reddit is joining the S&P 500.
Danny Lewis
S&P Dow Jones Indices, which reviews the makeups of various indexes, says Reddit will replace Avalon Bay Communities, a real estate investment trust being bought by fellow S&P 500 member Equity Residential, creating a vacancy in the index.
Danny Lewis
Reddit shares are up more than 13% in morning trading.
Danny Lewis
Heard on WSJ Tech News Briefing — “TNB Tech Minute: Trump Administration Announces New Drone Tariffs, published Friday, August 14, 2026. Heardvine summarizes and quotes with attribution and timestamps, and links to the original everywhere.
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Reddit Joins S&P 500 Index — Heardvine