Zheng Xing Xing Ye Ri Bao·2025-12-30 08:56Market Overview - The plastic sector experienced a decline of 0.89% on December 30, with Shangwei New Materials leading the drop [1] - The Shanghai Composite Index closed at 3965.12, showing no change, while the Shenzhen Component Index rose by 0.49% to 13604.07 [1] Stock Performance - Notable gainers in the plastic sector included: - Henghe Precision (300539) with a closing price of 43.50, up 6.44% and a trading volume of 207,300 shares, totaling 877 million yuan [1] - Heshun Technology (301237) at 61.61, up 5.61% with 92,400 shares traded, amounting to 562 million yuan [1] - Jinfat Technology (600143) at 20.00, up 5.10% with a volume of 1,962,400 shares, totaling 3.857 billion yuan [1] - Conversely, significant decliners included: - Shangwei New Materials (688585) at 118.67, down 10.19% with a trading volume of 176,700 shares, totaling 2.091 billion yuan [2] - Shenjian Co. (002361) at 13.04, down 10.01% with 3,641,300 shares traded, amounting to 4.908 billion yuan [2] - Ruihua Technology (688323) at 22.95, down 3.57% with a volume of 159,700 shares, totaling 376 million yuan [2] Capital Flow - The plastic sector saw a net outflow of 1.633 billion yuan from major funds, while retail investors contributed a net inflow of 1.424 billion yuan [2] - The distribution of capital flow among key stocks showed: - Jinfat Technology (600143) had a net inflow of 2.13 billion yuan from major funds, but a net outflow of 1.98 billion yuan from retail investors [3] - Henghe Precision (300539) recorded a net inflow of 1.11 billion yuan from major funds, with a significant outflow from retail investors totaling 972.74 million yuan [3] - Other stocks like Zhejiang Zhongcheng (002522) and Weike Technology (301196) also experienced varying degrees of net inflows and outflows from different investor categories [3]