Core Viewpoint - The semiconductor sector is experiencing volatility, influenced by major tech companies' earnings reports and new product launches in the AI chip market [3][4]. Group 1: Market Performance - As of October 31, 2025, the Shanghai Stock Exchange Sci-Tech Innovation Board Chip Index fell by 3.70%, with mixed performance among constituent stocks [3]. - Notable gainers included Peak Technology (+1.98%), Aiwei Electronics (+1.90%), and Lexin Technology (+1.36%), while Lanqi Technology (-9.30%), Yandong Micro (-7.61%), and Shengmei Shanghai (-7.06%) led the declines [3]. - The Bosera Sci-Tech Chip ETF (588990) decreased by 3.77%, with a latest price of 2.48 yuan, but saw a 4.80% increase over the past week, ranking 2nd among comparable funds [3]. Group 2: Liquidity and Fund Flows - The Bosera Sci-Tech Chip ETF recorded a turnover of 9.18% during the trading session, with a transaction volume of 63.18 million yuan [3]. - Over the past month, the ETF averaged daily transactions of 133 million yuan [3]. - In the last two weeks, the ETF's scale increased by 31.92 million yuan, ranking 3rd among comparable funds [4]. - However, there was a net outflow of 5.20 million yuan recently, with a total inflow of 53.12 million yuan over the last 16 trading days [4]. Group 3: Industry Insights - Longjiang Securities anticipates that as AI inference applications materialize, demand for DDR5 and eSSD storage will rise, driven by KV Cache transitioning from HBM to DRAM and SSD [4]. - Hynix projects a more than 20% growth in DRAM bit demand by 2026, with NAND Flash demand also expected to increase significantly [4]. - CITIC Securities forecasts that domestic wafer fabs could increase their global market share from 10% to 30%, indicating substantial expansion potential [4]. - The semiconductor equipment sector may experience a new growth cycle as leading storage manufacturers initiate new projects and advanced logic manufacturers ramp up production [4]. Group 4: Index Composition - The Shanghai Stock Exchange Sci-Tech Innovation Board Chip Index includes companies involved in semiconductor materials, equipment, design, manufacturing, packaging, and testing [5]. - As of September 30, 2025, the top ten weighted stocks in the index accounted for 59.69% of the total index, including companies like Haiguang Information, Lanqi Technology, and SMIC [5].