GOLDEN SUN SECURITIES·2025-09-07 08:20Investment Rating - The report maintains an "Overweight" rating for the optical communication sector [4]. Core Insights - The optical communication sector has experienced significant volatility recently, but strong demand and large orders in the overseas AI computing field indicate that the fundamentals of the optical module industry remain solid. The AI-driven computing expansion cycle is far from over, and the recent market adjustments provide a better investment opportunity for long-term investors [1][26]. - The core logic driving long-term growth in the optical module industry remains unchanged, with exponential growth in AI computing demand necessitating faster and more efficient data transmission capabilities. Major overseas cloud service providers have significantly increased their capital expenditures, reflecting high industry prosperity [3][28]. Summary by Sections Investment Strategy - The report emphasizes the importance of focusing on the optical communication sector, particularly recommending leading companies in the optical module industry such as Zhongji Xuchuang and NewEase, as well as other related firms [10][11][18]. Market Review - The communication sector has seen a decline, with the optical communication segment performing relatively well compared to other sub-sectors. The report notes that the optical communication index increased by 0.1%, while other indices experienced declines [22][25][23]. AI Computing Infrastructure - Major global AI companies are accelerating their computing infrastructure development through large-scale collaborations and self-developed chip deployments. Companies like Google and Meta have significantly raised their capital expenditure forecasts for AI infrastructure [2][8][30]. Demand for Optical Modules - The demand logic for optical modules remains intact, driven by the ongoing need for enhanced data transmission capabilities due to the exponential growth in AI computing requirements. This is evidenced by substantial increases in capital expenditures from major cloud service providers [3][30]. Short-term Market Adjustments - Recent adjustments in the A-share optical communication sector are attributed more to market sentiment and fund flow changes rather than fundamental shifts in the industry. The report suggests that these adjustments do not hinder the long-term demand logic driven by AI [9][31]. Key Recommendations - The report recommends focusing on the optical communication sector and related companies, highlighting specific firms such as Zhongji Xuchuang, NewEase, and Tianfu Communication, among others. It also suggests monitoring domestic computing supply chains, particularly in liquid cooling segments [10][11][18].