Key Points Robinhood will replace Caesars Entertainment in the S&P 500 index effective Sept. 22. Index inclusion creates automatic demand, as fund managers must buy shares to reflect the benchmark updates. 10 stocks we like better than Robinhood Markets › Shares of Robinhood Markets (NASDAQ: HOOD) are rising on Monday, up 13.5% as of 1:53 p.m. ET. The jump comes as the S&P 500 and the Nasdaq Composite have gained 0.1% and 0.5%, respectively. The trading platform's stock is flying after its additio ...