2 1 Shi Ji Jing Ji Bao Dao·2025-10-21 12:38Market Overview - On October 21, the A-share market rebounded, with the Shanghai Composite Index recovering the 3900-point mark, closing up 1.36% at 3916.33 points [1] - The Shenzhen Component Index rose by 2.06% to 13077.32 points, while the ChiNext Index increased by 3.02% to 3083.72 points [1] - The total trading volume of A-shares reached 1.89 trillion yuan, an increase of over 140 billion yuan compared to the previous trading day [1] Sector Performance - Over 4600 stocks in the market rose, with nearly 100 stocks hitting the daily limit [2] - The AI computing power sector saw strong gains, with the optical module index rising over 6% and the optical chip index increasing nearly 5% [2] - The Apple supply chain strengthened due to the overnight rise in Apple's stock price, with companies like Wentech Technology and Huanshu Electronics hitting the daily limit, and Industrial Fulian rising by 9.57% [2] - Conversely, the coal mining and lithium battery electrolyte indices fell by 1.30% and 1.59%, respectively [2] AI Sector Insights - Recent positive news in the AI sector includes Google Cloud's announcement of the commercial availability of Google Cloud G4 VMs and Alibaba Cloud's GPU pooling service achieving recognition at a top academic conference [6] - The explosive growth in the AI computing power sector is attributed to multiple core factors, including significant investments from global tech giants and supportive domestic policies [6] - Predictions suggest that AI inference demand could rise to 80% by 2030, indicating a deep penetration of computing power needs from training to application [6] Market Dynamics - The volatility in the AI sector has increased, driven by fierce capital competition and concerns over short-term economic conditions [7] - The A-share market has seen adjustments post-holidays, with a notable decline in trading volume [7] - Analysts suggest that the current market style may not see a significant shift, with a focus on rebalancing between technology and value styles [9] Future Outlook - There are differing opinions on whether a style shift will occur in the fourth quarter, with some expecting a rotation towards small-cap stocks or value sectors [9] - The market is anticipated to experience a stepwise upward trend, with a focus on low-valuation sectors and the sustainability of high-valuation sectors [10] - Investment strategies for the fourth quarter include focusing on sectors with real orders and cash flow improvements, while maintaining a balanced approach between technology and value stocks [11][12]