Zheng Xing Xing Ye Ri Bao·2025-09-18 08:46Market Overview - On September 18, the component sector rose by 0.81% compared to the previous trading day, with Nanya Technology leading the gains [1] - The Shanghai Composite Index closed at 3831.66, down 1.15%, while the Shenzhen Component Index closed at 13075.66, down 1.06% [1] Top Performers - Nanya Technology (688519) closed at 81.07, up 10.36% with a trading volume of 115,500 shares and a turnover of 926 million [1] - Guanghe Technology (001389) closed at 84.33, up 10.01% with a trading volume of 204,300 shares and a turnover of 1.687 billion [1] - Huazheng New Materials (603186) closed at 43.44, up 10.00% with a trading volume of 190,500 shares and a turnover of 804 million [1] - Other notable gainers include Huhua Electric (002463) up 6.38%, Shengyi Technology (600183) up 5.40%, and ChaoSheng Electronics (000823) up 5.09% [1] Underperformers - Sihui Fushi (300852) closed at 45.89, down 5.17% with a trading volume of 153,700 shares and a turnover of 710 million [2] - Jianghai Co. (002484) closed at 32.65, down 3.91% with a trading volume of 531,700 shares and a turnover of 1.773 billion [2] - Shiyun Circuit (603920) closed at 48.01, down 3.30% with a trading volume of 759,500 shares and a turnover of 3.744 billion [2] Capital Flow - The component sector experienced a net outflow of 1.877 billion from institutional investors, while retail investors saw a net inflow of 807 million [2][3] - Notable net inflows from retail investors were observed in companies like Xingsen Technology (002436) and Shengyi Technology (600183) [3] Summary of Individual Stocks - Xingsen Technology (002436) had a net inflow of 554 million from institutional investors, while retail investors saw a net outflow of 448 million [3] - Shengyi Technology (600183) had a net inflow of 335 million from institutional investors, with a net outflow of 227 million from retail investors [3] - Guanghe Technology (001389) had a net inflow of 135 million from institutional investors, with a net outflow of 48 million from retail investors [3]