美股中概股盘前多数上涨，蔚来涨4%

Group 1 - The majority of Chinese concept stocks in the US market saw an increase in pre-market trading, with NIO rising by 4% [1] - Li Auto experienced a 2% increase, while Baidu rose by 1% [1] - Futu Holdings increased by 0.4%, Alibaba by 0.3%, and JD.com by 0.1% [1] Group 2 - Pinduoduo saw a decline of 0.5%, and Trip.com fell by 0.6% [1]