Zheng Xing Xing Ye Ri Bao·2025-09-03 08:45Market Overview - The professional engineering sector experienced a decline of 1.36% on September 3, with Hai Bo Heavy Industry leading the drop [1] - The Shanghai Composite Index closed at 3813.56, down 1.16%, while the Shenzhen Component Index closed at 12472.0, down 0.65% [1] Stock Performance - Notable gainers in the professional engineering sector included: - Shenghui Integration: Closed at 44.77, up 10.00% with a trading volume of 91,400 shares and a turnover of 401 million yuan [1] - Yongfu Co., Ltd.: Closed at 26.45, up 5.25% with a trading volume of 86,600 shares and a turnover of 225 million yuan [1] - Huadian Technology: Closed at 7.27, up 4.76% with a trading volume of 767,300 shares and a turnover of 568 million yuan [1] - Decliners included: - Hai Bo Heavy Industry: Closed at 11.00, down 5.09% with a trading volume of 61,700 shares and a turnover of 69.12 million yuan [2] - Aiman Co., Ltd.: Closed at 51.50, down 4.10% with a trading volume of 60,200 shares and a turnover of 318 million yuan [2] Capital Flow - The professional engineering sector saw a net outflow of 261 million yuan from institutional investors, while retail investors experienced a net inflow of 214 million yuan [2][3] - Key stocks with significant capital flow included: - Huadian Technology: Net inflow of 61.88 million yuan from institutional investors, but a net outflow of 58.83 million yuan from retail investors [3] - Shenghui Integration: Net inflow of 43.37 million yuan from institutional investors, with a net outflow from retail investors [3] - Yongfu Co., Ltd.: Net inflow of 30.07 million yuan from institutional investors, with a net outflow from retail investors [3]