Zheng Xing Xing Ye Ri Bao·2026-01-19 08:58Group 1 - The oil service engineering sector increased by 1.06% on January 19, with Haiyou Engineering leading the gains [1] - The Shanghai Composite Index closed at 4114.0, up 0.29%, while the Shenzhen Component Index closed at 14294.05, up 0.09% [1] - Key stocks in the oil service engineering sector showed various performance metrics, with notable increases in closing prices and trading volumes [1] Group 2 - The oil service engineering sector experienced a net outflow of 98.53 million yuan from institutional investors, while retail investors saw a net inflow of 164 million yuan [2] - Detailed fund flow data indicates that major stocks like Haiyou Engineering and Beiken Energy had mixed net inflows and outflows from different investor categories [3] - The overall market sentiment reflected a divergence in fund flows, with retail investors showing a positive trend despite institutional outflows [2][3]