21世纪经济报道·2026-03-11 02:01Market Overview - On March 11, A-shares opened higher, but the Shanghai Composite Index turned negative, dropping by 0.07% by 9:40 AM, while the Shenzhen Component Index rose by 0.29%, the ChiNext Index increased by 0.67%, and the Sci-Tech Innovation Board Index gained 0.32% [1] - More than 2,600 stocks in the Shanghai and Shenzhen markets experienced price increases [1] Sector Performance - The industrial mother machine, optical communication, and precious metals sectors saw the highest index gains [4] - The optical fiber concept has been particularly strong, with Changfei Optical Fiber achieving two consecutive trading limits and setting a new historical high, while companies like Zhongtian Technology, Hengtong Optic-Electric, Tongding Interconnection, and Changying Technology also saw price increases [4] - The industrial mother machine sector was active, with Huadong CNC hitting the daily limit, Hengjin Induction rising over 12%, and Huazhong CNC, Nuwai CNC, and Qiaofeng Intelligent also experiencing gains [5] Hong Kong Market - The Hong Kong market also opened higher, with the Hang Seng Index up by 0.4% and the Hang Seng Technology Index increasing by 0.56% [5] - Major technology stocks led the gains, with NIO rising over 15%, and Tencent Holdings, Xiaopeng Motors, Baidu Group, and Lenovo Group all increasing by more than 2% [5]