Zheng Xing Xing Ye Ri Bao·2025-10-13 12:38Market Overview - The plastic sector experienced a decline of 3.52% on October 13, with Shangwei New Materials leading the drop [1] - The Shanghai Composite Index closed at 3889.5, down 0.19%, while the Shenzhen Component Index closed at 13231.47, down 0.93% [1] Stock Performance - Notable gainers in the plastic sector included: - Xingye Co., Ltd. (603928) with a closing price of 16.64, up 4.72% on a trading volume of 162,500 shares and a turnover of 266 million yuan [1] - Zhangguang Co., Ltd. (301092) with a closing price of 32.59, up 3.92% on a trading volume of 52,900 shares and a turnover of 171 million yuan [1] - Major decliners included: - Shangwei New Materials (688585) with a closing price of 105.68, down 20.00% on a trading volume of 13,100 shares and a turnover of 139 million yuan [2] - Weike Technology (301196) with a closing price of 87.73, down 4.95% on a trading volume of 37,800 shares and a turnover of 32.6 million yuan [2] Capital Flow - The plastic sector saw a net outflow of 372 million yuan from institutional investors, while retail investors contributed a net inflow of 469 million yuan [2] - Key stocks with significant capital flow included: - Saint Spring Group (605589) with a net inflow of 73.18 million yuan from institutional investors [3] - Xingye Co., Ltd. (603928) with a net inflow of 13.01 million yuan from institutional investors [3]