and president of Robinhood, the commission-free trading platform, is in the firm’s basement gym in Menlo Park, California, firing off jabs and uppercuts at Adam Azevedo, his trainer. “It’s cathartic,” Tenev says, grinning, after several furious rounds, brushing a sweaty fringe of black hair off his face. “Training improves my mood. Lowers my stress. The fact that there is a routine makes me feel like I’m more in control of myself and my surroundings.”
