Zheng Xing Xing Ye Ri Bao·2026-02-04 08:56Group 1 - The professional engineering sector increased by 1.19% on February 4, with Huadian Engineering leading the gains [1] - The Shanghai Composite Index closed at 4102.2, up 0.85%, while the Shenzhen Component Index closed at 14156.27, up 0.21% [1] - Notable gainers in the professional engineering sector included: - Huadian Engineering (601226) with a closing price of 12.73, up 10.03% [1] - Hongsheng Huayuan (601096) with a closing price of 6.19, up 9.95% [1] - ST Tianlong (300029) with a closing price of 5.62, up 4.46% [1] Group 2 - The professional engineering sector saw a net inflow of 156 million yuan from institutional investors, while retail investors experienced a net inflow of 3.44 million yuan [2] - Major stocks with significant net inflows from institutional investors included: - Huadian Engineering (601226) with a net inflow of 209 million yuan [3] - Hongsheng Huayuan (601096) with a net inflow of 201 million yuan [3] - Shanghai Port Bay (605598) with a net inflow of 48.86 million yuan [3]