Robinhood Co-founders prepare for massive IPO.

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Vlad Tenev and Baiju Bhatt, who were roommates at Stanford, are each assured to be worth $2.6 billion on paper when their trading app lists on Nasdaq later this month.

Robinhood expects to sell shares between $38 and $42 each.

CEO Tenev and Chief Creative Officer Bhatt will each own 7.9% of the company’s outstanding shares. They are selling $50 million worth of shares each in the offering.