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Reddit shares surge on S&P 500 inclusion effective August 18
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Reddit shares surged following the announcement that the social media platform will be added to the S&P 500 index. The inclusion is scheduled to take effect before the start of trading on August 18, 2026. Reddit will replace AvalonBay Communities, which is being acquired by fellow S&P 500 member Equity Residential. The news, reported by The Business Times on August 14, 2026, highlights a significant milestone for Reddit as it joins the benchmark gauge, reflecting its growing market capitalization and influence in the social media sector.
Source report
The social media platform will join the benchmark gauge prior to the start of trading on Aug 18
Published: Fri, Aug 14, 2026 · 08:20 AM
NEW YORK – Reddit will join the S&P 500 next week as part of a regular index rebalancing, sending its shares sharply higher.
The social media platform will be added to the benchmark index before trading begins on August 18, replacing AvalonBay Communities, which is being acquired by fellow S&P 500 member Equity Residential.
- Reddit replaces AvalonBay Communities, which is being acquired by fellow S&P 500 member Equity Residential. (Photo: REUTERS)
Source
The Business TimesRegional
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Reddit Added to S&P 500, Shares Surge Over 10%