Zheng Xing Xing Ye Ri Bao·2025-09-30 08:51Core Insights - The oil service engineering sector experienced a decline of 0.43% on September 30, with Huibo leading the drop [1] - The Shanghai Composite Index closed at 3882.78, up 0.52%, while the Shenzhen Component Index closed at 13526.51, up 0.35% [1] Stock Performance - Renji Co. (002629) saw a significant increase of 9.94%, closing at 7.96 with a trading volume of 249,000 shares and a turnover of 196 million [1] - Tongyuan Petroleum (300164) increased by 2.85%, closing at 5.78 with a trading volume of 1,203,300 shares and a turnover of 679 million [1] - Other notable performers include Keli Co. (920088) with a 1.53% increase, and potential Hengxin (300191) with a 0.69% increase [1] Capital Flow - The oil service engineering sector saw a net inflow of 37.88 million from institutional investors, while retail investors contributed a net inflow of 17.13 million [2] - However, speculative funds experienced a net outflow of 55.01 million [2] Individual Stock Capital Flow - Renji Co. (002629) had a net inflow of 63.11 million from institutional investors, while it faced a net outflow of 33.67 million from speculative funds [3] - Tongyuan Petroleum (300164) also saw a net inflow of 34.35 million from institutional investors, with a net outflow of 29.02 million from speculative funds [3] - Other stocks like Huibo (002554) and Zhonghai (601808) experienced mixed capital flows, with Huibo facing a net outflow from both institutional and speculative investors [3]