Several stocks swung sharply in the close auction: Shengyi Technology, Baiwei Storage, AMEC, Kingsoft Office, Guanghe Technology and Jiangbolong rallied over 2%, while O-Film, Roborock and Bull Group fell more than 2%. MSCI on May 13 published its May 2026 quarterly index review; changes take effect after the close on May 29. The MSCI China Index will add 22 stocks, including Guangku Technology, Yangtze Optical Fibre and Shengke Communication, and remove 24 stocks, including NetEase Cloud Music,

Several stocks swung sharply in the close auction: Shengyi Technology, Baiwei Storage, AMEC, Kingsoft Office, Guanghe Technology and Jiangbolong rallied over 2%, while O-Film, Roborock and Bull Group fell more than 2%. MSCI on May 13 published its May 2026 quarterly index review; changes take effect after the close on May 29. The MSCI China Index will add 22 stocks, including Guangku Technology, Yangtze Optical Fibre and Shengke Communication, and remove 24 stocks, including NetEase Cloud Music, O-Film, Goodix Technology, Meitu and Bull Group.