Zheng Quan Shi Bao Wang·2025-07-28 08:48Core Viewpoint - The PET copper foil sector has shown a significant increase of 4.03% as of July 28, ranking third among concept sectors, with 42 stocks rising, including notable gains from Fangbang Co. and Tongguan Copper Foil, which hit the 20% limit up [1] Group 1: Market Performance - The PET copper foil concept saw a net inflow of 421 million yuan from main funds, with 26 stocks experiencing net inflows, and 6 stocks exceeding 50 million yuan in net inflow [1] - The top net inflow stock was Tongguan Copper Foil, with a net inflow of 123 million yuan, followed by Shengli Precision and Guanghua Technology with net inflows of 117 million yuan and 86.4 million yuan respectively [1] - The overall performance of the PET copper foil sector was strong, with several stocks achieving significant daily gains, including DeFu Technology and Zhongyi Technology, which rose by 12.14% and 9.80% respectively [1] Group 2: Fund Flow Ratios - The leading stocks in terms of fund inflow ratios included Shengli Precision, Dazhongnan, and Fangbang Co., with net inflow rates of 15.32%, 10.43%, and 9.76% respectively [2] - The detailed fund inflow data showed that Tongguan Copper Foil had a daily turnover rate of 10.83% and a net inflow of 123.41 million yuan, indicating strong investor interest [2] - Other notable stocks with significant fund inflow ratios included Guanghua Technology and Longyang Electronics, with net inflow rates of 8.58% and 8.72% respectively [2][3]