Zheng Xing Xing Ye Ri Bao·2025-10-30 08:35Market Overview - The oil service engineering sector increased by 0.12% on October 30, with CNOOC leading the gains [1] - The Shanghai Composite Index closed at 3986.9, down 0.73%, while the Shenzhen Component Index closed at 13532.13, down 1.16% [1] Stock Performance - Key stocks in the oil service engineering sector showed varied performance, with Yingsikangwang leading with a closing price of 14.58, up 4.29% [1] - Other notable performances include: - CNOOC Engineering at 5.49, up 0.37% - CNOOC Development at 3.92, up 0.26% - China Oil Engineering at 3.66, down 0.54% - Keli Co. at 34.60, down 0.63% [1] Trading Volume and Value - The trading volume and value for key stocks were significant, with Yingsikangwang achieving a transaction value of 713 million [1] - The overall trading volume for the oil service engineering sector indicated active participation, with various stocks showing substantial turnover [1] Capital Flow - The oil service engineering sector experienced a net outflow of 348 million from institutional investors, while retail investors saw a net inflow of 433 million [2][3] - The capital flow for individual stocks revealed: - CNOOC Development with a net inflow of 763.10 thousand from retail investors - CNOOC Engineering with a net outflow of 43.94 thousand from institutional investors [3] Individual Stock Analysis - Stocks like Beiken Energy and Huibo Yin faced significant net outflows, indicating potential concerns among institutional investors [2][3] - Conversely, stocks such as Renji Co. and Zhun Oil Co. saw notable retail investor interest, suggesting a divergence in investor sentiment [3]