Zheng Quan Shi Bao Wang·2025-12-29 09:28Group 1 - The PEEK materials concept increased by 3.23%, leading the sector in gains, with 40 stocks rising, including Hengbo Co., which hit a 20% limit up [1][2] - Notable gainers in the PEEK materials sector included Chaojie Co. (+16.35%), Guangwei Composite (+14.86%), and Meihao Medical (+8.30%) [1][2] - The sector saw a net inflow of 172 million yuan from main funds, with 29 stocks receiving net inflows, and 9 stocks exceeding 50 million yuan in net inflow [2][3] Group 2 - Guangwei Composite led the net inflow with 348 million yuan, followed by Jinfake Technology (208 million yuan), Keda Li (140 million yuan), and Shuanglin Co. (106 million yuan) [2][3] - The highest net inflow ratios were recorded by Brother Technology (13.92%), Meihao Medical (11.38%), and Shuanglin Co. (11.17%) [3][4] - The PEEK materials sector's performance was contrasted by declines in other sectors, such as the dairy industry (-1.90%) and lithium extraction from salt lakes (-1.89%) [2]