Zheng Xing Xing Ye Ri Bao·2025-08-20 08:52Market Performance - The oil service engineering sector increased by 1.61% on August 20, with Qianeng Hengxin leading the gains [1] - The Shanghai Composite Index closed at 3766.21, up 1.04%, while the Shenzhen Component Index closed at 11926.74, up 0.89% [1] Stock Performance - Qianeng Hengxin (300191) closed at 20.91, up 3.98% with a trading volume of 208,100 shares and a transaction value of 437 million [1] - Haiyou Development (600968) closed at 4.07, up 3.30% with a trading volume of 1,260,600 shares and a transaction value of 511 million [1] - Other notable stocks include Bomaike (603727) at 14.87 (+1.99%), Zhongyou Engineering (600339) at 3.52 (+1.73%), and Shihua Oil Service (600871) at 2.06 (+1.48%) [1] Capital Flow - The oil service engineering sector saw a net inflow of 75.06 million from main funds, while retail funds experienced a net outflow of 3.08 million [2] - Main funds showed significant inflows into Qianeng Hengxin (47.51 million) and Haiyou Development (25.45 million), while notable outflows were seen in Huibo Yin (-6.28 million) and Zhongman Petroleum (-9.39 million) [3]