核电指数盘中跌2%，多股跌超5%

Group 1 - The nuclear power index experienced a decline of 2% during intraday trading, indicating a bearish trend in the sector [1] - Component stocks showed widespread losses, with China First Heavy Industries and Xuerun Group hitting the daily limit down [1] - Guoguang Electric and Antai Technology fell over 7%, while Western Materials dropped more than 5% [1]