From being firmly held to decisively liquidated: Nvidia's "Iron Fan" fund manager warns of multiple risks.

Jonah Cheng, founder of the hedge fund, called NVIDIA the most successful investment of his career. However, he has now sold his last batch of NVIDIA stocks and expressed doubts about the future of the $3.5 trillion chip giant. The fund, Captain Global Fund, founded by the former UBS analyst, focuses on the tech sector and achieved a 42% return last year. The fund was one of the many beneficiaries during NVIDIA's stock price surge in the past decade. When Jonah Cheng founded the fund in 2016, NVIDIA was one of the first stocks he bought, and he made multiple additional investments in it afterwards.