多只大盘股集合竞价纷纷异动

Group 1 - The core point of the article highlights significant stock movements in the A-share market, with several companies experiencing sharp fluctuations during the closing auction [1] - New companies such as Baijiazhenshou-U, New Yisheng, WuXi AppTec, and Zhongji Xuchuang are being added to the FTSE China A50 Index, while companies like China Nuclear Power, China Unicom, Guodian Nari, and Wanhua Chemical are being removed [1] - The changes announced by FTSE Russell on September 3 will take effect after the market closes on September 19 [1]