Robinhood's Tenev says SEC regulatory push is about 'control,' not investor protection; CEO argues his company's business model 'threatens the existing order' Chris Matthews – MarketWatch Robinhood CEO Vlad Tenev took aim at U.S. regulators' plans for stricter rules governing smartphone trading apps and the payment-for-order-flow business model that has turned his company into a $38 billion titan in the brokerage industry in an op-ed in the Wall Street Journal Tuesday. /on.mktw.net/3zQOagL