Market Performance - As of August 15, the PET copper foil concept increased by 3.66%, ranking 6th among concept sectors, with 41 stocks rising, including Nord Shares, Dongcai Technology, and Hailiang Shares hitting the daily limit [1] - The top gainers in the sector were Copper Crown Copper Foil, Jiejia Weichuang, and Defu Technology, which rose by 14.49%, 10.86%, and 9.25% respectively [1] Sector Overview - The PET copper foil sector saw a net inflow of 1.26 billion yuan from main funds today, with 27 stocks receiving net inflows, and 5 stocks exceeding 50 million yuan in net inflows [2] - The leading stock in terms of net inflow was Nord Shares, with a net inflow of 662 million yuan, followed by Dongcai Technology, Hailiang Shares, and Defu Technology with net inflows of 254 million yuan, 155 million yuan, and 97.67 million yuan respectively [2] Fund Flow Ratios - The stocks with the highest net inflow ratios included Nord Shares, Dongcai Technology, and Yinglian Shares, with net inflow ratios of 42.41%, 20.20%, and 15.13% respectively [3] - The detailed fund flow for PET copper foil concept stocks showed that Nord Shares had a daily increase of 10.06% with a turnover rate of 13.07%, while Dongcai Technology increased by 10.02% with a turnover rate of 7.46% [3][4]