Core Viewpoint - The PCB concept stocks are experiencing significant activity, with companies like Yihau New Materials, Huadian Co., and Jingwang Electronics reaching new highs, indicating a bullish trend in the market [1] Group 1: Market Dynamics - The M8 PCB market space for AI servers and switches is projected to be between 50-60 billion by 2026, according to Tianfeng Securities [1] - Major global manufacturers are intensifying their infrastructure development to meet the surging demand for inference computing power, which is driving the growth of the PCB industry [1] Group 2: Company Performance - Yihau New Materials (301176), Huadian Co. (002463), and Jingwang Electronics (603228) have all achieved new record highs in stock performance [1] - Jin'an Guoji (002636) has seen a consecutive two-day stock increase, while Aoshikang (002913) and Zhongyi Technology (301150) are also experiencing upward trends [1] Group 3: Investment Trends - There is a notable influx of dark pool funds into these stocks, suggesting increased investor interest and confidence in the PCB sector [1]