
Shares of Robinhood Markets, Inc. (NASDAQ:HOOD) rose sharply in pre-market trading.
S&P Dow Jones Indices announced a sweeping update to its benchmarks late Friday, unveiling new additions to the S&P 100, S&P 500, S&P MidCap 400, and S&P SmallCap 600. Robinhood will replace Caesars Entertainment Inc. (NASD: CZR) in the S&P 500, effective prior to the open of trading on Monday, Sept. 22.