早盘必读丨美股三大指数集体收涨，大型科技股涨跌不一，热门中概股多数上涨

Group 1 - Major U.S. stock indices collectively rose, with large tech stocks showing mixed performance and most popular Chinese concept stocks increasing [2] - The market experienced fluctuations, ultimately closing lower, with a slight decrease in trading volume [2] - There is a notable rebound in small and mid-cap stocks, attributed to a correction from previous declines [2] Group 2 - China has achieved a significant breakthrough in nuclear energy technology by successfully converting thorium to uranium in a molten salt reactor [3][6] - The 2MWt liquid fuel thorium-based molten salt experimental reactor, led by the Shanghai Institute of Applied Physics, is the first in the world to achieve this conversion [3][6] - This development supports China's industrial application of thorium-based molten salt reactors and reinforces its leading position in international research in this field [3] Group 3 - NVIDIA has entered a major AI agreement with South Korean tech giants, including Samsung and Hyundai, to provide over 260,000 AI chips for a national AI project [4] - The project aims to utilize NVIDIA's latest Blackwell GPUs to accelerate digital transformation across various industries, including automotive, manufacturing, and telecommunications [4] Group 4 - The 14th National Games torch relay was launched in Shenzhen, featuring a humanoid robot named "Kua Fu" that successfully completed the torch handover without technical personnel [5] Group 5 - By the end of 2027, significant progress is expected in the development of smart cities, with a focus on digital transformation and efficient handling of urban operations [7] - The initiative aims to establish over 50 fully digital transformation cities, enhancing urban governance and public services through data empowerment [7]