China's A-share market staged a volatile rebound on October 28, with the ChiNext Index surging more than 3% and the Shenzhen Component Index and STAR 50 Index each gaining over 2%. Combined turnover across the Shanghai and Shenzhen exchanges reached 1.63 trillion yuan, up 167.5 billion yuan from the prior session, as more than 4,100 stocks advanced market-wide. Hot sectors rotated quickly through the session. The humanoid robotics concept led gains, with Xiangyang Bearing hitting its fifth consecutive limit-up, while Guangyang and Wanxiang Qianchao posted multi-day streaks. Innovative drug and CRO names also climbed intraday, with ACROBiosystems and Novoprotein hitting the 20% daily limit and Sino Biological rising over 17%. Among CPO stocks, Zhongji Innolight gained more than 10% and JPT rose over 16%. On the downside, food and beverage shares including Guifaxiang, Anji Food and Jinhui Liquor slipped lower. At the close, the Shanghai Composite Index finished up 0.91%, the Shenzhen Component Index rose 2.02%, and the ChiNext Index gained 3.4%.