Zheng Xing Xing Ye Ri Bao·2025-09-12 08:31Market Performance - The plastic sector increased by 1.5% compared to the previous trading day, with Shangwei New Materials leading the gains [1] - The Shanghai Composite Index closed at 3883.69, up 0.22%, while the Shenzhen Component Index closed at 12996.38, up 0.13% [1] Top Gainers in Plastic Sector - Shangwei New Materials (688585) closed at 90.01, up 12.57%, with a trading volume of 119,200 shares and a transaction value of 1.036 billion [1] - Hangzhou High-tech (300478) closed at 22.26, up 11.52%, with a trading volume of 184,800 shares and a transaction value of 393 million [1] - Fula New Materials (605488) closed at 34.30, up 10.01%, with a trading volume of 216,700 shares and a transaction value of 718 million [1] Decliners in Plastic Sector - Jundingda (301538) closed at 93.75, down 4.63%, with a trading volume of 40,500 shares and a transaction value of 383 million [2] - Henghe Precision (300539) closed at 37.58, down 3.86%, with a trading volume of 176,700 shares and a transaction value of 666 million [2] - Ruifeng High Materials (300243) closed at 11.78, down 3.68%, with a trading volume of 137,700 shares and a transaction value of 163 million [2] Capital Flow Analysis - The plastic sector experienced a net outflow of 250 million from institutional investors, while retail investors saw a net inflow of 329 million [2][3] - Major stocks like Jinfatech (600143) had a net inflow of 24.4 million from institutional investors, while Fula New Materials (605488) saw a net inflow of 173 million [3] - Retail investors showed a net outflow in several stocks, including Fula New Materials and Shangwei New Materials, indicating mixed sentiment [3]