化工板块，连续爆发

Market Overview - The A-share market experienced a pullback after an initial rise, with all three major indices turning negative, while the micro-cap stock index increased by over 1% [1] - The total trading volume in the Shanghai and Shenzhen markets reached 1.51 trillion yuan, a decrease of 88.4 billion yuan compared to the previous trading day [1] Sector Performance - The chemical sector continued its strong performance, with companies like Luohua Technology and Jinmei Technology achieving two consecutive trading limit increases, and stocks such as Jinzhengda, Hongbaoli, and Lutianhua hitting the daily limit [3] - The wind power sector showed active trading, with Tongyu Heavy Industry hitting the daily limit, and Tian Shun Wind Energy and Yuancheng Shares also reaching the daily limit [3] - The battery materials concept saw a rapid rise, particularly in the negative electrode and electrolyte segments, with Putailai hitting the daily limit [3] - Conversely, the computing power leasing concept faced a collective downturn, with Meili Cloud hitting the daily limit down, and companies like Yuke and Yuntian Leifeng experiencing significant declines [3] Index Performance - By the end of the trading session, the Shanghai Composite Index fell by 0.22%, the Shenzhen Component Index decreased by 0.17%, and the ChiNext Index saw a slight decline of 0.03% [3]