Robinhood (HOOD) shares are up 15% on Monday after the online trading platform confirmed it will replace Caesars Entertainment (CZR) in the benchmark S&P 500 Index ($SPX) on Sept. 22. The upcoming inclusion in the S&P 500 marks a significant milestone for the Nasdaq-listed financial technology company, which was once seen as a meme stock only. More News from Barchart Robinhood stock has been a game-changing investment in 2025. At the time of writing, the retail brokerage is trading up nearly 300% versus ...