沪指，重返3900点

Market Overview - The A-share market rebounded today, with the Shanghai Composite Index rising over 1% to reclaim the 3900-point level, while the ChiNext Index surged over 2% [1] - The total trading volume in the Shanghai and Shenzhen markets reached 2.07 trillion, a decrease of 503.4 billion compared to the previous trading day [1] Sector Performance - The robotics sector saw significant activity in the afternoon, with stocks like Wuzhou New Spring and Sanhua Intelligent Control hitting the daily limit [1] - The airport and shipping sector experienced fluctuations, with Huaxia Airlines reaching the daily limit [1] - The pharmaceutical sector remained strong throughout the day, with multiple stocks such as Anglikang also hitting the daily limit [1] - The data center power supply concept showed active performance, with Sifang Co. and Jingquanhua achieving two consecutive limits in four days [1] - Conversely, the port and shipping stocks collectively declined, with Nanjing Port and Lianyungang experiencing significant drops [1][2] Index Performance - By the end of the trading session, the Shanghai Composite Index rose by 1.22%, the Shenzhen Component Index increased by 1.73%, and the ChiNext Index climbed by 2.36% [3] - Specific closing figures include: Shanghai Composite Index at 3912.21, Shenzhen Component Index at 13118.75, and ChiNext Index at 3025.87 [4]