"Tiger cub" Rob Citrone's macro fund was one of the best-performing on Wall Street in 2023.: Discovery Capital Management's macro hedge fund, led by "Tiger cub" Rob Citrone, saw a stunning 48% return in 2023, Bloomberg reported on Tuesday. That's a sharp rebound from 29% loss posted by the fund in 2022. Its comeback made it one of the best performers on Wall Street, according to Bloomberg.