The high-school junior balances homework with another full-time job he's had since he was 13: He's founder and CEO of HoopSwagg, a custom socks startup. HoopSwagg isn't just a little project on ...

It’s no simple hobby: Agranoff is the founder and CEO of HoopSwagg, and he has already sold $1 million in custom socks. “I have enough socks in this warehouse to wear every day until I die ...