乘用车板块2月2日跌1.96%，比亚迪领跌，主力资金净流出18.3亿元

Group 1 - The passenger car sector experienced a decline of 1.96% on February 2, with BYD leading the drop [1] - The Shanghai Composite Index closed at 4015.75, down 2.48%, while the Shenzhen Component Index closed at 13824.35, down 2.69% [1] - Major stocks in the passenger car sector showed varied performance, with BYD closing at 87.05, down 4.22%, and other notable declines from companies like BAIC Blue Valley and Great Wall Motors [1] Group 2 - The passenger car sector saw a net outflow of 1.83 billion yuan from institutional investors, while retail investors contributed a net inflow of 1.18 billion yuan [1] - Specific stock performances indicated significant net outflows for companies like SAIC Motor and Great Wall Motors, while Changan Automobile and BYD saw notable retail inflows [1]