Brands Robinhood Founders, Baiju Bhatt and Vlad Tenev, Become Billionaires in Silicon Valley MinuteBy Tapiwa Matthew MutisiMay 13, 2018 The Robinhood Markets Inc. co-founders achieved that milestone after a recent funding round for the electronic stock brokerage pushed its valuation to about $6 billion, up from $1.3 billion last year.