Zheng Xing Xing Ye Ri Bao·2025-09-16 08:53Market Overview - On September 16, the professional engineering sector rose by 0.29% compared to the previous trading day, with Baili Technology leading the gains [1] - The Shanghai Composite Index closed at 3861.87, up 0.04%, while the Shenzhen Component Index closed at 13063.97, up 0.45% [1] Top Performers - Baili Technology (603959) closed at 7.11, up 10.06% with a trading volume of 733,600 shares and a transaction value of 521 million [1] - Donghua Technology (002140) closed at 11.82, up 6.10% with a trading volume of 612,900 shares and a transaction value of 732 million [1] - Rishang Group (002593) closed at 5.43, up 3.04% with a trading volume of 432,500 shares and a transaction value of 232 million [1] Underperformers - Nenghuizhi (301046) closed at 25.27, down 2.43% with a trading volume of 76,500 shares and a transaction value of 191 million [2] - Tongguan Mining Construction (920019) closed at 24.62, down 2.19% with a trading volume of 42,600 shares and a transaction value of 105 million [2] - Bandi Technology (300712) closed at 27.75, down 2.05% with a trading volume of 70,400 shares and a transaction value of 195 million [2] Capital Flow - The professional engineering sector experienced a net outflow of 97.7 million from institutional investors, while retail investors saw a net inflow of 108 million [2][3] - Donghua Technology had a net inflow of 127 million from institutional investors, but a net outflow of 47.7 million from speculative funds [3] - Rishang Group saw a net inflow of 42.2 million from speculative funds, while also experiencing a net outflow of 17.6 million from institutional investors [3]