高位股盘初大跌，大有能源闪崩一度逼近跌停

Group 1 - High-level stocks experienced a significant drop at the beginning of trading, with Dayou Energy's stock plummeting close to the daily limit down [1] - Huajian Group has seen a continuous three-day trading halt at the daily limit down [1] - Other companies such as Shihua Machinery, Antai Group, and Zhujiang Piano also faced collective declines [1]