Robinhood Markets Inc. is anticipated to be included in the S&P 500 index, according to analysts from Bank of America. The announcement is expected this Friday, and Robinhood's stock has recently reached a nearly four-year high amid a broader market rebound. Inclusion in the index could lead to significant buying by passive funds that track the S&P 500, similar to the 34% surge in Coinbase's stock when it was added. Other companies like Ares Management, Carvana, and AppLovin are also considered potential candidates for inclusion.