A股，大涨

Market Overview - The A-share market experienced a volatile upward trend in the morning session, with the ChiNext Index leading the gains and the Shanghai Composite Index breaking through the high point from October 8 of the previous year [1] - The total trading volume in the Shanghai and Shenzhen markets reached 1.31 trillion yuan, an increase of 118.6 billion yuan compared to the previous trading day [1] Sector Performance - AI hardware stocks surged again, with companies like Xinyi Technology reaching new historical highs [3] - Brokerage stocks saw a mid-session rally, with Guosheng Jin控 achieving two consecutive trading limits [3] - Innovative drug concept stocks became active again, with Haishi Ke hitting the daily limit [3] - The sectors with the highest gains included securities, CPO, photolithography machines, and CRO, while sectors with the largest declines included poultry, coal, ports, and Xinjiang [3] - By the end of the session, the Shanghai Composite Index rose by 0.56%, the Shenzhen Component Index increased by 1.47%, and the ChiNext Index climbed by 2.81% [3]