21世纪经济报道·2025-10-31 07:42Market Overview - The A-share market experienced fluctuations on October 31, with the Shanghai Composite Index falling by 0.81% and the Shenzhen Component Index declining by 1.14% [1][2] - The total market turnover reached 2.35 trillion, with over 3,700 stocks rising [1] Sector Performance - The pharmaceutical sector saw collective gains, with stocks like Lianhuan Pharmaceutical and Sanofi China hitting the daily limit [3] - The battery sector showed strong performance, with companies like Haike Xinyuan and Lijia Technology experiencing significant price increases [5] - The AI application sector also performed well, with stocks such as Rongxin Culture and Fushi Holdings reaching the daily limit [3] Battery Sector Insights - Several lithium battery companies reported impressive Q3 earnings, with Penghui Energy achieving a revenue of 3.28 billion, a year-on-year increase of 74.96%, and a net profit of 203 million, up 977.24% [5] - Ganfeng Lithium reported a revenue of 6.249 billion, a 44.10% year-on-year increase, and a net profit of 557 million, up 364.02% [5] - The current supply and demand in the energy storage market are robust, with expectations for continued growth in lithium carbonate production [5] Optical Module Sector Analysis - The optical module sector faced a significant pullback, with major companies like Xinyi Sheng, Zhongji Xuchuang, and Tianfu Communication experiencing declines of around 8% [7][8] - Despite strong performance in the first three quarters, the third quarter showed a decline in revenue for these companies, attributed to changes in customer purchasing patterns and production schedules [8] - The long-term outlook for the optical communication industry remains optimistic, with expectations for a shift from "order acquisition" to "delivery assurance" by 2026 [9]