商用车板块12月8日跌1.18%，宇通客车领跌，主力资金净流出2.54亿元

Group 1 - The commercial vehicle sector experienced a decline of 1.18% on December 8, with Yutong Bus leading the drop [1] - The Shanghai Composite Index closed at 3924.08, up 0.54%, while the Shenzhen Component Index closed at 13329.99, up 1.39% [1] - Key stocks in the commercial vehicle sector showed varied performance, with Shuguang Co. increasing by 1.46% and Yutong Bus decreasing by 2.06% [3] Group 2 - The net outflow of main funds in the commercial vehicle sector was 254 million yuan, while retail investors saw a net inflow of 136 million yuan [3][4] - Individual stock fund flows indicated that major stocks like FAW Jiefang and Jiangling Motors experienced significant net outflows from main funds [4] - The trading volume and turnover for various stocks in the sector varied, with Jianghuai Automobile having a turnover of 1.649 billion yuan [1][3]