乘用车板块2月4日涨1.81%，北汽蓝谷领涨，主力资金净流入9.88亿元

Group 1 - The passenger car sector increased by 1.81% compared to the previous trading day, with Beiqi Blue Valley leading the gains [1] - The Shanghai Composite Index closed at 4102.2, up 0.85%, while the Shenzhen Component Index closed at 14156.27, up 0.21% [1] - Major stocks in the passenger car sector showed varying performance, with Beiqi Blue Valley closing at 8.27, up 3.89%, and BYD at 89.14, up 2.03% [1] Group 2 - The net inflow of main funds in the passenger car sector was 988 million yuan, while retail investors saw a net outflow of 541 million yuan [1] - The fund flow data indicates that BYD had a main fund net inflow of 457.1 million yuan, but a retail net outflow of 219 million yuan [2] - Beiqi Blue Valley experienced a main fund net inflow of 200 million yuan, with retail investors showing a net outflow of 11.07 million yuan [2]