Despite its promise to bring trading to the masses, Robinhood is intimately connected with the Wall Street establishment. Chicago-based Citadel Securities functions as something of a middleman between Robinhood and exchanges like the NASDAQ (on which GameStop is traded), taking a cut of the earnings along the way. Citadel is also one of the firms that bailed out Melvin Capital earlier this week, and as such would benefit from GameStop’s stock crashing.