Zheng Xing Xing Ye Ri Bao·2025-12-30 08:56Core Viewpoint - The automotive service sector experienced a decline of 0.77% on December 30, with Xiamen Xinda leading the drop. The Shanghai Composite Index closed at 3965.12, down 0.0%, while the Shenzhen Component Index rose by 0.49% to 13604.07 [1]. Group 1: Market Performance - The automotive service sector's stocks showed mixed performance, with notable declines in several companies, including Xiamen Xinda, which fell by 2.63% to a closing price of 6.67 [2]. - The trading volume for Xiamen Xinda was 274,700 shares, with a transaction value of 185 million yuan [2]. - Other companies like China Automotive Research and Shanghai Material Trade also saw declines of 0.30% and 1.85%, respectively [1][2]. Group 2: Capital Flow - The automotive service sector saw a net outflow of 39.61 million yuan from institutional investors, while retail investors contributed a net inflow of 54.81 million yuan [2]. - The capital flow data indicates that North Bus Media had a net inflow of 7.96 million yuan from institutional investors, while China Automotive Research experienced a net outflow of 8.99 million yuan [3]. - The overall trend shows that retail investors are more active in the sector, as evidenced by their net inflow compared to the outflows from institutional and speculative investors [2][3].