Zheng Xing Xing Ye Ri Bao·2025-08-19 08:37Market Overview - On August 19, the oil service engineering sector experienced a slight decline of 0.05% compared to the previous trading day, with Keli Co., Ltd. leading the drop [1] - The Shanghai Composite Index closed at 3727.29, down 0.02%, while the Shenzhen Component Index closed at 11821.63, down 0.12% [1] Stock Performance - Notable gainers in the oil service engineering sector included: - Renji Co., Ltd. (002629) with a closing price of 7.11, up 3.19% and a trading volume of 267,400 shares, totaling 188 million yuan [1] - Beiken Energy (002828) closed at 10.67, up 1.33% with a trading volume of 208,900 shares, totaling 222 million yuan [1] - Other stocks showed minor fluctuations, with some experiencing negligible changes [1] Capital Flow - The oil service engineering sector saw a net outflow of 35.21 million yuan from institutional investors, while retail investors contributed a net inflow of 26.13 million yuan [2] - The overall capital flow indicates a mixed sentiment among different investor types, with institutional investors withdrawing funds while retail investors increased their positions [2] Individual Stock Capital Flow - Key stocks and their capital flow include: - Haiyou Development (600968) with a net inflow of 17.93 million yuan from institutional investors, but a net outflow of 22.72 million yuan from retail investors [3] - Beiken Energy (002828) saw a net inflow of 16.56 million yuan from institutional investors, but a significant net outflow of 20.92 million yuan from speculative funds [3] - The data reflects varying levels of confidence in different stocks within the sector, with some attracting institutional interest while others face selling pressure from speculative investors [3]