A股收评：沪指12连阳重回4000点，脑机接口、保险股全线大涨

Market Overview - The A-share market opened positively in 2026, with the Shanghai Composite Index rising for 12 consecutive days, closing above 4000 points at 4023.42, up 1.38% [1][2] - The Shenzhen Component Index increased by 2.24% to 13828.63, while the ChiNext Index rose by 2.85% to 3294.55 [1][2] - Total market turnover reached 2.57 trillion yuan, an increase of 501.5 billion yuan from the previous trading day, with nearly 4200 stocks rising [1] Sector Performance Brain-Computer Interface Sector - The brain-computer interface sector experienced a surge, with over 30 stocks hitting the daily limit, driven by Elon Musk's announcement of large-scale production of brain-computer interface devices by Neuralink in 2026 [4] - Notable stocks include: - BeiYikang: +29.98% [5] - DaoShi Technology: +20.01% [5] - Sanbo Brain Science: +20.01% [5] - MeiHao Medical: +20.00% [5] Insurance Sector - The insurance sector saw significant gains, with New China Life Insurance rising over 8% and China Pacific Insurance increasing by 7.52% [7] - The insurance industry reported a total premium income of 57.629 billion yuan for the first 11 months of 2025, a year-on-year increase of 7.6% [6] Storage Chip Sector - The storage chip sector also performed well, with stocks like Yunhan Chip City and Puran Shares hitting the daily limit, and Zhongwei Company rising over 14% [8] Gaming Sector - The gaming sector rebounded, with stocks such as Tom Cat rising over 16% and Sanqi Interactive Entertainment hitting the daily limit [9] Precious Metals Sector - The precious metals sector saw gains, with Hunan Silver hitting the daily limit and Western Gold rising over 6% [10] Innovative Drug Sector - The innovative drug sector experienced a broad increase, with stocks like GuanHao Biological hitting the daily limit [11] - In 2025, 76 innovative drugs were approved for market, setting a historical record, with total licensing transactions exceeding 130 billion USD [11] Hainan Free Trade Zone Sector - The Hainan Free Trade Zone sector faced a collective adjustment, with Hainan Development hitting the daily limit down and Haiqi Group falling over 8% [13] Transportation and Tourism Sector - The transportation and tourism sectors showed weakness, with Hainan Airport down 4.69% and various tourism stocks declining [15][14] Market Outlook - Looking ahead, the market may continue to exhibit structural trends, supported by positive investor sentiment from the strengthening of the Hong Kong market and the renminbi exchange rate [18] - The upcoming Spring Festival may trigger an early market rally, with a focus on technology leaders and cyclical sectors benefiting from price recovery expectations [18]