Legendary investor Stan Druckenmiller admitted he 'screwed up' by selling his Nvidia position too early, missing out on massive gains. In a Morgan Stanley podcast, Druckenmiller revealed he bought NVDA at $150, sold at $800 in February 2024, then watched it surge to $1,200 before the stock split. The decision came after emotional pressure and technical warnings reminiscent of the dot-com bubble.

Druckenmiller described the AI trade as becoming 'disturbingly heated,' with market signals echoing his 1999-2000 experiences. Despite recognizing the 'enormity' of the AI shift and doubling his stake after seeing ChatGPT, rapid valuation changes triggered his caution. The famed macro investor, known for 30% annualized returns, confessed he 'couldn't stand success' and exited despite his long-term thesis.

Reflecting on the costly mistake, Druckenmiller emphasized that even seasoned investors fall prey to emotional errors. He credited his team for the initial AI thesis but admitted his 'trigger pulling' remains imperfect. The billionaire investor's candid admission highlights the psychological challenges of holding winning positions in overheated markets, even for those with decades of experience.