Market Overview - On November 7, the A-share market opened lower but rebounded, with the Shanghai Composite Index and Shenzhen Component Index down by 0.16% and 0.37% respectively, while the North Star 50 Index rose nearly 1% [3] - The total market turnover for the half-day was 1.27 trillion yuan, slightly lower than the previous day, with over 2,300 stocks rising [5] Sector Performance - The basic chemical sector saw significant gains, with stocks in phosphorus chemical, fluorine chemical, organic silicon, and titanium dioxide experiencing high activity. Notable stocks included Dongyue Silicon Materials and Haixin Energy Technology, which hit the 20% daily limit [10][11] - The photovoltaic equipment sector also performed well, with companies like Hongyuan Green Energy and Yijing Photovoltaic reaching their daily limits [12] - The electric power equipment sector rose in tandem, with stocks like Ruitai New Materials and Tianji Shares also hitting the daily limit [13] Lithium Battery Sector - The lithium battery sector experienced a surge, with the price of lithium hexafluorophosphate rising due to increased market demand and reduced inventory. Companies reported full orders and strong product demand [14] Storage Chip Sector - The storage chip sector showed localized activity, with stocks like Demingli hitting the daily limit and reaching a historical high of 271.85 yuan per share. The supply-demand situation for storage chips remains tight, with SK Hynix completing negotiations for HBM4 supply with Nvidia [16][20] AI Sector - The AI application sector faced declines, with stocks related to operating systems, servers, and ChatGPT collectively underperforming. Concerns over high valuations in AI-related companies have intensified, leading to discussions about a potential "AI bubble" [21][24]