How Vladimir Tenev and Baiju Bhatt built the fee-free stock trading app Robinhood, which disrupted rivals by relying on selling customers' orders (Jeff Kauflin/Forbes)

Jeff Kauflin / Forbes: How Vladimir Tenev and Baiju Bhatt built the fee-free stock trading app Robinhood, which disrupted rivals by relying on selling customers' orders  —  It's just after midnight on Friday, July 31, and the Todd Capital Options Community, a $20-per-month subscription Slack channel favored …
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