[Reddit to be Included in the S&P 500 Index Next Week, After-Hours Stock Price Surged Over 11%] BlockBeats News, on August 14, S&P Dow Jones Indices announced that Reddit (RDDT) will officially be included in the S&P 500 Index before the market opens on August 18, replacing the acquired AvalonBay Communities (AVB). Following the announcement, Reddit's after-hours stock price once surged over 11%. [Original Link]