Zheng Xing Xing Ye Ri Bao·2025-10-15 08:27Market Overview - The plastic sector increased by 2.13% on October 15, with Wankai New Materials leading the gains [1] - The Shanghai Composite Index closed at 3912.21, up 1.22%, while the Shenzhen Component Index closed at 13118.75, up 1.73% [1] Top Gainers in Plastic Sector - Wankai New Materials (301216) closed at 21.05, up 8.39% with a trading volume of 270,700 shares and a transaction value of 552 million [1] - Wanlang Weiwang (603150) closed at 41.70, up 8.17% with a trading volume of 54,000 shares [1] - Jiangsu Boyun (301003) closed at 37.42, up 6.91% with a trading volume of 36,600 shares [1] - Tianyang New Materials (603330) closed at 8.08, up 6.88% with a trading volume of 31,260 shares [1] - Dongcai Technology (601208) closed at 18.90, up 6.06% with a trading volume of 464,600 shares and a transaction value of 859 million [1] Market Capital Flow - The plastic sector experienced a net outflow of 88.1963 million from institutional investors and a net outflow of 139 million from speculative funds, while retail investors saw a net inflow of 227 million [2][3] - Key stocks like Jinfac Technology (600143) had a net inflow of 11.7 million from institutional investors, while it faced a net outflow of 73.021 million from speculative funds [3]