
Reddit Joins S&P 500, Sparks After-Hours Rally
Reddit will join the S&P 500 on Aug. 18, replacing AvalonBay, making it the second pure-play social media company in the index after Meta. The announcement sparked an about 11% after-hours stock jump as index funds must buy shares to match the benchmark; Reddit has posted strong Q2 growth but warned that its search referrals were choppy due to Google’s AI-driven changes, raising questions about user acquisition.



