小米汽车板块高开，凯众股份涨停

Group 1 - Xiaomi's automotive sector opened high, with Kaizhong Co., Ltd. (603037) hitting the daily limit, and Haitai Technology (301022) and Fute Technology (301607) rising over 10% [1] - Wuxi Zhenhua (605319) and Taihong Wanli (603210) also showed significant gains [1] - The official launch of Xiaomi's YU7 model last night resulted in over 289,000 pre-orders within one hour, exceeding expectations [1] Group 2 - The strong order volume for YU7 indicates robust market demand, suggesting potential investment opportunities in Xiaomi and related companies [1] - The news highlights the possibility of trading Xiaomi through ETFs with T+0 transactions, which may attract more investors [1]