In the video, two-time U.S. investing champion Mark Minervini reflects on a pivotal turning point in his trading career: the moment he transitioned from a loosely guided approach to one defined by strict discipline, clearly defined rules, and a personal trading system. He explains how the shift enabled him to stop relying on hope or guesswork and instead handle positions with a consistent risk-control mindset. As he puts it, defining rigid rules transformed his results, allowing him to steadily

How Mark Minervini Uses Discipline To Navigate A 'Hard Penny' Market | Investor's Business Daily