Zheng Xing Xing Ye Ri Bao·2025-10-29 08:33Market Overview - The plastic sector increased by 0.56% on October 29, with Dongcai Technology leading the gains [1] - The Shanghai Composite Index closed at 4016.33, up 0.7%, while the Shenzhen Component Index closed at 13691.38, up 1.95% [1] Top Gainers in Plastic Sector - Dongcai Technology (601208) closed at 21.48, up 5.92% with a trading volume of 1.18 million shares and a transaction value of 253.7 million yuan [1] - Hechang Polymer (920089) closed at 19.57, up 4.32% with a trading volume of 55,100 shares and a transaction value of 106 million yuan [1] - Meilian New Materials (300586) closed at 11.30, up 3.86% with a trading volume of 471,100 shares and a transaction value of 54 million yuan [1] Top Losers in Plastic Sector - Qide New Materials (300995) closed at 44.02, down 6.08% with a trading volume of 36,900 shares and a transaction value of 163 million yuan [2] - Yongli Co. (300230) closed at 5.15, down 3.20% with a trading volume of 385,100 shares and a transaction value of 198 million yuan [2] - Weisaibo (688718) closed at 14.37, down 2.84% with a trading volume of 27,600 shares and a transaction value of 39.99 million yuan [2] Capital Flow Analysis - The plastic sector experienced a net outflow of 311 million yuan from institutional investors, while retail investors saw a net inflow of 126 million yuan [2] - The top stocks with significant net inflows from retail investors include Yongli Co. with 24.64 million yuan and Hechang Polymer with 490,210 yuan [3] - Major stocks with net outflows from institutional investors include Stik (300806) with 71.76 million yuan and Wankai New Materials (301216) with 50.07 million yuan [3]