Changjiang Securities·2025-12-30 08:41Investment Rating - The report maintains a "Positive" investment rating for the communication industry [10]. Core Insights - The communication sector saw a 4.21% increase in the 52nd week of 2025, ranking 8th among major industries in the Yangtze River region. Year-to-date, the sector has risen by 87.14%, ranking 1st [2][4]. - Nvidia has entered a non-exclusive licensing agreement with AI inference chip leader Groq, with a transaction value of $20 billion, significantly above Groq's September valuation of $6.9 billion. This acquisition enhances Nvidia's capabilities in inference processing [5]. - Alibaba's Tongyi Laboratory has launched a self-developed layered architecture image model, Qwen-Image-Layered, which optimizes computing power and enables precise image editing, facilitating the international expansion of domestic multimodal large models [6]. - The Long March 12 rocket successfully completed its first flight, marking a milestone for China's commercial aerospace sector, with new regulations facilitating the listing of rocket companies on the Sci-Tech Innovation Board [7]. Summary by Sections Market Performance - In the 52nd week of 2025, the communication sector increased by 4.21%, with a year-to-date rise of 87.14%, leading among major industries [2][4]. - Top gainers in the sector include Tongyu Communication (+30.7%), Yongding Co. (+28.1%), and Beidou Star (+27.3%), while China Telecom (-5.3%), Dekeli (-3.6%), and Shijia Photon (-3.6%) faced declines [4]. Key Developments - Nvidia's acquisition of Groq focuses on Groq's LPU architecture, which uses on-chip SRAM to enhance memory access speed, improving the overall inference processing ecosystem [5]. - Alibaba's Qwen-Image-Layered model breaks traditional diffusion model limitations, achieving element-level decoupling and precise editing, thus supporting the export of domestic multimodal models [6]. - The successful flight of the Long March 12 rocket represents a significant advancement in commercial aerospace, with new guidelines supporting the listing of rocket companies [7]. Investment Recommendations - Recommended operators include China Mobile, China Telecom, and China Unicom. - For optical modules, recommended companies are Zhongji Xuchuang, Xinyi Sheng, Tianfu Communication, and Shijia Photon, with attention to Taicheng Light and Yuanjie Technology. - In liquid cooling, the recommendation is for Yingweike, while for hollow core fibers, Fenghuo Communication, Hengtong Optic-Electric, and Zhongtian Technology are suggested, with a focus on Changfei Optical Fiber. - For domestic computing power, recommended companies include Runze Technology, Guanghuan New Network, Aofei Data, Huafeng Technology, Guangxun Technology, ZTE, and Unisplendour. - In AI applications, recommended firms are Boshi Jie, Heertai, Tuobang Co., Yiyuan Communication, Meige Intelligent, and Guanghetong. - For satellite applications, recommended companies include Huace Navigation, Haige Communication, and Canqin Technology [8].