Core Insights - The automotive service sector experienced a slight decline of 0.12% on November 20, with Shenhua Holdings leading the drop [1] - The Shanghai Composite Index closed at 3931.05, down 0.4%, while the Shenzhen Component Index closed at 12980.82, down 0.76% [1] Automotive Service Sector Performance - Xiamen Xinda (000701) saw a closing price of 6.60, up 1.69% with a trading volume of 399,900 shares and a transaction value of 262 million yuan [1] - Altec (300825) closed at 10.46, up 0.97%, with a trading volume of 67,800 shares and a transaction value of 70.97 million yuan [1] - Shanghai Wumao (600822) closed at 11.17, up 0.18%, with a trading volume of 81,100 shares and a transaction value of 91.71 million yuan [1] - Other notable performances include China Automotive Research (601965) closing at 16.85, down 0.53% [1] Capital Flow Analysis - The automotive service sector saw a net inflow of 14.75 million yuan from institutional investors, while retail investors experienced a net outflow of 165.10 million yuan [2] - The main capital inflow was observed in Shanghai Wumao (600822) with a net inflow of 14.31 million yuan, accounting for 15.60% of the total [3] - Xiamen Xinda (000701) also attracted significant institutional investment with a net inflow of 13.88 million yuan, representing 5.31% of the total [3]