一周股评｜沪指狂飙突破4100点：科技浪潮席卷，万亿成交点燃市场热情

Market Overview - The A-share market experienced a strong start in 2026, with the Shanghai Composite Index breaking the 4100-point barrier and achieving a trading volume exceeding 3 trillion yuan, marking a historical high [1] - The Shanghai Composite Index rose by 0.92%, the Shenzhen Component Index by 1.15%, and the ChiNext Index by 0.77%, with a cumulative increase of 3.82% for the week [1] AI Sector - The AI application sector saw significant gains, with over twenty constituent stocks hitting the daily limit, driven by strong market expectations for the practical application of AI technology [3] - Analysts predict 2026 will be a "golden year" for AI applications, supported by three key factors: technological maturity, ongoing policy support, and resonating market demand [3] Commercial Aerospace - The commercial aerospace sector is attracting substantial investment, with companies like Luxin Venture Capital and China Satellite Communications showing remarkable stock performance [5] - The sector's growth is bolstered by supportive policies and optimistic market expectations regarding the future of commercial aerospace [5] Semiconductor Market - The global memory chip market is experiencing a "price hurricane," with major players like Samsung and SK Hynix planning to raise server DRAM prices by 60%-70% in Q1 2026, impacting cloud computing and AI servers [5][7] - The DRAM market has entered a significant price increase cycle, with prices for many categories rising over 100% since July 2025 [10] - Analysts predict a 144% year-on-year increase in average selling prices for server DRAM in 2026, driven by a structural supply-demand crisis [10][12] Automotive Industry - The penetration rate of new energy vehicles has surpassed 50%, leading to a surge in IPOs within the automotive supply chain, with over 97 companies listed in 2025 [14] - The capital market is witnessing a vibrant atmosphere, with significant participation from various segments of the automotive industry, reflecting the dual drive of electrification and intelligence [16] Economic Outlook - The macroeconomic environment shows signs of stabilization, with CPI rising by 0.8% year-on-year and PPI's decline narrowing, indicating a positive economic trend [16] - Goldman Sachs recommends overweighting Chinese stocks, forecasting a 15%-20% increase in 2026 and 2027, driven by AI, overseas expansion, and supportive policies [18]