（文章来源：证券日报） 证券日报网讯 2月2日，万泰生物在互动平台回答投资者提问时表示，截至目前，公司没有尼帕病毒检 测试剂生产。公司有相关产品技术储备，将根据疫情和市场需要启动。 ...

Market Overview - On January 26, A-shares experienced a mixed adjustment, with the Shanghai Composite Index slightly down by 0.09%, while the Shenzhen Component Index and ChiNext Index fell by 0.85% and 0.91%, respectively. The STAR 50 Index dropped by 1.35%, and only the CSI 300 Index saw a minor increase of 0.1% [1] - The total trading volume in the two markets reached 3.25 trillion yuan, an increase of approximately 163 billion yuan compared to the previous day, with 1,538 stocks rising and 3,547 stocks falling. The net outflow of main funds was 121.6 billion yuan [1] Sector Performance - Precious metals, particularly silver, led the market with an increase of 10.89%, with 8 stocks hitting the daily limit [1] - Aerospace and military electronics sectors, including space station and phased array antenna concepts, saw significant declines [1] Company Highlights - Silver-related companies gained attention due to the recovery of precious metal concepts and the overall activity in the non-ferrous metal sector. Silver's dual industrial and financial attributes align with current market trends, attracting speculative and quantitative funds despite its lower revenue contribution [2] - Zijin Mining's significant investment plan to acquire an African gold mine for 28 billion yuan is a key driver of its popularity, reflecting a forward-looking strategy in resource allocation amid global industrial upgrades [2] - Tongling Nonferrous Metals benefits from tightening supply and demand in the global copper market, with increasing demand from the new energy and high-end manufacturing sectors driving copper prices up. The company has achieved technological breakthroughs in high-end products and is expected to enhance its resource self-sufficiency through its Ecuador Mirador copper mine project [2] - Hunan Silver, a leading player in the domestic silver processing sector, has performed well amid the overall strength of the non-ferrous metal sector, supported by institutional investment and multiple concept attributes [2] Emerging Trends - Zhejiang Wenhu Internet's business layout aligns with market trends, launching the "Pai Zhi" programmatic advertising tool in the AI marketing field and experiencing rapid growth in its digital human business in collaboration with ByteDance [3] - Wangsu Technology benefits from the explosive demand for AI computing power and the rising popularity of the cloud computing sector, with its strategic transition to edge computing nodes receiving unexpected orders [3] - Da'an Gene's focus on the "Nipah virus" testing theme resonates with market trends, leveraging its position as a leader in the molecular diagnostic reagent industry [3] - Leo Group is in a critical business transformation phase, focusing on AI applications and digital marketing, which has attracted market attention [3] Popular Stocks - The top ten popular stocks in A-shares include Silver Nonferrous Metals, Zijin Mining, Tongling Nonferrous Metals, Hunan Silver, Zhejiang Wenhu Internet, Wangsu Technology, Da'an Gene, Leo Group, Aerospace Electronics, and BlueFocus [3]