Robinhood Faces SEC Probe for Not Disclosing Deals With High-Speed Traders

Company could have to pay a fine exceeding $10 million if it agrees to settle

As millions of new traders sign up for the investment app Robinhood, the company is facing scrutiny for enabling some inexperienced users to make risky bets. WSJ spoke with a financial education professional and two Robinhood traders about how the app is shaking up the brokerage industry.