DAOMING(SZ:002632) Zheng Xing Xing Ye Ri Bao·2025-10-21 08:21Market Overview - The plastic sector increased by 1.61% on October 21, with Daoming Optics leading the gains [1] - The Shanghai Composite Index closed at 3916.33, up 1.36%, while the Shenzhen Component Index closed at 13077.32, up 2.06% [1] Top Gainers in the Plastic Sector - Daoming Optics (002632) closed at 10.87, up 10.02% with a trading volume of 377,900 shares and a turnover of 394 million yuan [1] - Tuen Co., Ltd. (002768) closed at 49.77, up 6.96% with a trading volume of 54,300 shares and a turnover of 264 million yuan [1] - Yinhai Technology (300221) closed at 8.83, up 5.75% with a trading volume of 413,200 shares and a turnover of 357 million yuan [1] Decliners in the Plastic Sector - Cangzhou Mingzhu (002108) closed at 4.31, down 2.93% with a trading volume of 1,846,100 shares and a turnover of 795 million yuan [2] - Xiangyuan New Materials (300980) closed at 29.59, down 2.50% with a trading volume of 90,400 shares and a turnover of 269 million yuan [2] - Nanjing Jinglong (300644) closed at 32.01, down 2.38% with a trading volume of 35,600 shares and a turnover of 114 million yuan [2] Capital Flow Analysis - The plastic sector saw a net inflow of 83.05 million yuan from main funds, while retail funds had a net inflow of 27.22 million yuan [2] - The main funds showed a significant net outflow from Daoming Optics, amounting to 41.34 million yuan [3] - Dongcai Technology (601208) experienced a net inflow of 98.74 million yuan from main funds, indicating strong institutional interest [3]