Sou Hu Cai Jing·2025-08-25 15:16Market Overview - The A-share market is experiencing a comprehensive upward trend driven by ample liquidity, with the Shanghai Composite Index approaching 3900 points and a rise of 1.51%, while the ChiNext Index leads with a 3.00% increase. The total trading volume of both markets has unprecedentedly surpassed 30 trillion yuan [1]. Key Sectors - The market leadership has shifted from the previous focus on AI and semiconductor sectors to four core sectors advancing together: 1. AI export chain led by Nvidia showing strong performance 2. AI autonomous chain driven by DeepSeek gaining attention 3. Small metals, precious metals, and non-ferrous metals benefiting from inflation performing well 4. Real estate, consumption, and anti-involution sectors positively impacted by policy support [1]. Performance Analysis - Among the four sectors, the AI export chain and inflation metals chain have shown particularly outstanding performance, with frequent instances of stocks hitting the daily limit. In contrast, the AI autonomous chain and policy chain have underperformed, with the AI autonomous chain even showing signs of retreat, as evidenced by increased stock price volatility for companies like SMIC and Cambricon [1]. Market Sentiment and Fundamentals - The weaker performance of the AI autonomous chain and policy chain is attributed to their less robust internal logic, relying more on market expectations and emotional drivers, making sustained upward momentum challenging. For instance, the AI autonomous chain saw a surge due to DeepSeek's official news, but this emotional rise is unlikely to last due to the lack of substantial breakthroughs in the domestic chip sector and the absence of significant earnings releases [1]. Company-Specific Insights - Discussions around Cambricon are intense, with rumors suggesting potential large-scale procurement from ByteDance, which could lead to significant revenue and profit growth. However, these unverified claims raise skepticism [2]. - The policy chain faces similar challenges, as the new real estate policies in Shanghai have attracted capital attention, but the extent and sustainability of these benefits for the real estate sector and related industries remain uncertain. Without a substantial turnaround in performance, long-term confidence from investors is difficult to establish [3]. Performance Drivers - In contrast, the inflation sector and AI export chain are favored by investors due to continuous earnings growth. Despite significant stock price increases and relatively high valuations, investor confidence in these two sectors remains strong. Earnings are the core driver of the stock market, even in a liquidity-driven bull market. When other sectors are stimulated by favorable news, funds may temporarily flow in, but once the positive news fades, they are likely to return to sectors with strong earnings [3]. Sector Comparisons - For example, leading companies in the AI export chain, such as Shijia Photon, NewEase, and Zhongji Xuchuang, have seen their stock prices soar alongside substantial net profit growth. The overall performance of the optical module industry surpasses that of the PCB industry, primarily due to its higher technical barriers and profit margins [3].