Order Reprints Print Article William Galvin, the Secretary of the Commonwealth of Massachusetts, speaking in 2019. Jessica Hill/AP/Shutterstock Robinhood Markets, the no-commission online broker that has outpaced all of its more-established competitors in customer growth this year, is expected to go public next year. But its long-term success may depend on how it reacts to two regulatory actions this past week. Boasting more than 13 million customers, Robinhood could be one of the top initial public offerings of 2021, valued at $20 billion or more. To... Close Robinhood Is Expected to Be a Top IPO in 2021. Recent Regulatory Actions Show the Hurdles Ahead.