Core Insights - The PET copper foil sector has seen a significant increase of 5.88%, ranking third among concept sectors in terms of growth [2] - A total of 44 stocks within this sector experienced gains, with notable stocks like XianDao Intelligent and LiYuanHeng hitting the 20% limit up [2] - The sector attracted a net inflow of 3.277 billion yuan from major funds, with XianDao Intelligent leading the inflow at 1.968 billion yuan [2][3] Market Performance - The top-performing concept sectors for the day included: - Solid-state batteries: +6.90% - Sodium-ion batteries: +6.72% - PET copper foil: +5.88% - Perovskite batteries: +5.67% - Two-wheeled vehicles: +5.52% [2] Fund Flow Analysis - Major fund inflow ratios were led by: - GuangHua Technology: 41.16% - OuKe Technology: 29.90% - JieMei Technology: 19.52% [3] - The top stocks by fund inflow included: - XianDao Intelligent: 1.968 billion yuan - DaDongNan: 280.10 million yuan - GuangHua Technology: 218.74 million yuan [4]