Guoxin Securities·2025-10-08 12:52Group 1 - The communication sector underperformed the market in September, with the communication index down 0.15% compared to a 3.20% increase in the CSI 300 index, ranking 14th among 31 primary industries [2][14] - The PE valuation for the communication sector was 23.8 times in September, slightly below the historical median of 33.6 times over the past decade [2][16] - Key performers in the communication sector included optical devices, IDC, and optical fiber cables, with notable stock increases from companies like Tengjing Technology (+66%), Chunzong Technology (+92%), and Yuanjie Technology (+44%) [2][22] Group 2 - The global AI sector remains robust, with North American CSPs planning to invest over $370 billion in capital expenditures for FY2025, a 40% increase year-on-year [3][27] - Oracle reported a significant increase in its remaining performance obligations (RPO), reaching $455 billion, indicating strong future revenue potential [3][30] - The global Ethernet switch market is projected to reach $14.5 billion in Q2 2025, reflecting a 42.1% year-on-year growth, driven by data center demand [3][33] Group 3 - Domestic CSPs in China are expected to invest over 450 billion yuan in AI computing power by 2025, with companies like Alibaba and Tencent leading the charge [4][50] - The industrialization of domestic super-node data centers is accelerating, with Alibaba launching its new generation of AI servers and Huawei showcasing significant advancements in computing clusters [4][52][58] - The demand for optical modules remains high, with ongoing advancements in CPO and OCS technologies, as major chip manufacturers increase their orders to meet AI server requirements [4][70] Group 4 - Investment recommendations emphasize the importance of AI computing infrastructure, suggesting continued focus on optical devices, communication equipment, and liquid cooling technologies [5][21] - The three major telecom operators are highlighted as important assets for long-term investment due to their stable operations and increasing dividend payouts [5][21] - A recommended investment portfolio includes China Mobile, Zhongji Xuchuang, ZTE, and Guanghetong for September 2025 [5][21]