Zheng Xing Xing Ye Ri Bao·2025-09-12 08:37Market Overview - On September 12, the oil service engineering sector declined by 0.45% compared to the previous trading day, with Zhun Oil Co. leading the decline [1] - The Shanghai Composite Index closed at 3883.69, up 0.22%, while the Shenzhen Component Index closed at 12996.38, up 0.13% [1] Stock Performance - Key stocks in the oil service engineering sector showed varied performance, with Huibo Yin (002554) increasing by 3.01% to a closing price of 3.08, while Zhun Oil Co. (002207) decreased by 2.57% to 7.97 [2][1] - The trading volume and turnover for notable stocks included: - Huibo Yin: 418,000 shares, turnover of 127 million yuan - Zhun Oil Co.: 307,000 shares, turnover of 245 million yuan [2] Capital Flow - The oil service engineering sector experienced a net outflow of 242 million yuan from institutional investors, while retail investors saw a net inflow of 155 million yuan [2] - The capital flow for specific stocks indicated: - Zhun Oil Co.: Net outflow of 14.52 million yuan from institutional investors [3] - Huibo Yin: Net inflow of 13.11 million yuan from retail investors [3] Individual Stock Analysis - Zhun Oil Co. faced significant selling pressure with a net outflow of 14.52 million yuan from institutional investors, indicating a bearish sentiment [3] - Other stocks like Beiken Energy (002828) and Zhongman Petroleum (603619) also saw substantial net outflows of 22.26 million yuan and 27.30 million yuan, respectively [3]