Zheng Xing Xing Ye Ri Bao·2025-10-31 08:48Market Overview - The oil service engineering sector experienced a decline of 0.68% on October 31, with Renji Co. leading the drop [1] - The Shanghai Composite Index closed at 3954.79, down 0.81%, while the Shenzhen Component Index closed at 13378.21, down 1.14% [1] Stock Performance - Notable gainers in the oil service sector included: - Zhongman Petroleum (Code: 619809) with a closing price of 20.95, up 5.81% and a trading volume of 318,700 shares, totaling 665 million yuan [1] - Tongyuan Petroleum (Code: 300164) closed at 5.84, up 1.39% with a trading volume of 505,700 shares [1] - Conversely, Renji Co. (Code: 002629) saw a significant decline of 8.31%, closing at 8.61 with a trading volume of 891,800 shares, amounting to 832 million yuan [2] Capital Flow - The oil service sector saw a net outflow of 58.86 million yuan from institutional investors, while retail investors contributed a net inflow of 78.59 million yuan [2] - The capital flow for specific stocks indicated: - Zhongman Petroleum had a net inflow of 24.96 million yuan from institutional investors, while retail investors contributed a net inflow of 18.49 million yuan [3] - Renji Co. experienced a net outflow of 77.29 million yuan from institutional investors [3]