Duan Yongping's Q4 2025 portfolio shows a bold shift: while trimming $AAPL (now 50.3%), he supercharged $NVDA by 1110% and $TSM by 370%. With $BRK.B and $PDD also seeing double-digit growth, the "China's Buffett" is pivoting hard toward an AI-driven future. #DuanYongping #13F #Investing https://www.13radar.com/guru/duan-yongping