The Financial Industry Regulatory Authority fined Robinhood $1.25 million in December 2019 for failing to ensure that its customers received the best price for orders. All of Robinhood's trades between October 2016 and November 2017 were routed to companies that paid for order flow, and the company did not consider the price improvement which may have been obtained through other market makers.[59] Robinhood was sued in a class-action law suit in December 2020 for failing to disclose that a large portion of its revenue relied on payment for order flow.[60]