Zheng Xing Xing Ye Ri Bao·2026-01-22 09:01Group 1 - The oil service engineering sector increased by 5.02% on January 22, with Renji Co., Ltd. leading the gains [1] - The Shanghai Composite Index closed at 4122.58, up 0.14%, while the Shenzhen Component Index closed at 14327.05, up 0.5% [1] - Key stocks in the oil service engineering sector showed significant price increases, with Renji Co., Ltd. rising by 9.95% to a closing price of 6.41 [1] Group 2 - The main capital flow in the oil service engineering sector showed a net outflow of 134 million yuan, while retail investors had a net inflow of 177 million yuan [1] - Among individual stocks, Shihua Oil Service had a net inflow of 213 million yuan from main capital, while Renji Co., Ltd. experienced a net outflow of 15.18 million yuan from main capital [2] - Retail investors showed a net inflow of 6.76 million yuan in Haoyou Development, despite a net outflow from main and speculative capital [2]