通信行业2026年投资策略：商业航天建设期主线确立，AI算力提供景气强化

Core Insights - The commercial aerospace sector has officially entered a construction phase, marking the beginning of a new "constellation-level Capex" cycle in the communication industry, which is identified as the most certain core theme for 2026. The transition from technology validation to large-scale constellation deployment is driven by national strategic priorities and the "14th Five-Year Plan" [4][6] - The investment logic in commercial aerospace has shifted from thematic drivers to a focus on network construction, emphasizing the need for faster, cheaper, and more frequent satellite launches. Key constraints such as rocket capabilities, launch facilities, and ground communication systems are being gradually lifted [4][6] - The demand for high-speed optical connections is increasing as a critical component of AI computing infrastructure upgrades, with optical module port rates evolving towards 800G and 1.6T, indicating strong visibility and early realization of orders [4][6] - Liquid cooling technology is becoming a key structural increment in AI computing infrastructure upgrades, as traditional air cooling solutions face efficiency and space constraints. The penetration rate of liquid cooling is expected to rise alongside capital expenditures in computing [4][6] Industry Review - The communication sector maintained a positive revenue growth of 2.9% year-on-year, reaching a total revenue of 19.5 trillion yuan in the first three quarters of 2025, supported by the 5G-A construction cycle and positive impacts from optical modules and liquid cooling [20][19] - Profit levels in the communication sector improved, with total profits reaching 193.76 billion yuan, a year-on-year increase of 9.1%, indicating a positive trend in profitability [21][19] - The overall expense control was effective, with a sales expense ratio of 6.5% and a management expense ratio of 5.1% in the first three quarters of 2025, both showing a decrease compared to the previous year [26][25] Key Strategies - The first main strategy focuses on the construction phase of commercial aerospace, which is expected to drive a new "constellation-level Capex" cycle in the communication industry [6][36] - The second main strategy emphasizes the ongoing demand for AI computing, which will continue to drive upgrades in communication infrastructure [6][36] Investment Focus - Key stocks to watch include Kunheng Shunwei (688283), Aofei Data (300738), and Guanghuan Xinwang (300383), which are positioned to benefit from the trends in commercial aerospace and AI computing [4][6]