Xuan Gu Bao·2026-01-21 10:43Group 1 - The core viewpoint of the news is that 40 stocks were listed on the institutional leaderboard today, with 23 stocks experiencing net buying and 17 stocks facing net selling [1] - The top three stocks with the highest net buying by institutions are: Zhongtung High-tech (3.05 billion), Dazhu CNC (2.79 billion), and ST Jiaao (240 million) [1] - Dazhu CNC saw a net buying of 2.79 billion from five institutions, and the stock price increased by 20% [2][3] Group 2 - Resonac, a well-known Japanese materials manufacturer, announced a price increase of over 30% for PCB materials such as copper foil substrates and adhesive films due to tight supply and significant price hikes [3] - The company is actively collaborating with industry-leading clients to develop cutting-edge technology solutions for AI PCB, focusing on high precision and complex structures [3] - TSMC's new advanced packaging line at the Jiayi AP7 factory is expected to double its capacity to 60,000 pieces per month by 2026, with plans to double again by 2027 [3]