通信行业研究：海外 AI 算力仍然紧缺，阿里发布 3Q 业绩

Investment Rating - The report maintains a positive outlook on the industry, suggesting a focus on sectors driven by domestic AI development, such as servers and IDC, as well as those propelled by overseas AI growth, including servers and optical modules [5]. Core Insights - The demand for computing power remains critically high, with major companies like Google and AWS significantly expanding their AI infrastructure. Google plans to double its computing capacity every six months and aims for a 1000-fold increase in the next 4-5 years [1][2]. - Alibaba has confirmed a potential increase in its capital expenditure (Capex) to 380 billion yuan over the next three years, driven by strong growth in its cloud business, which saw a 34% increase [1][3]. - The domestic AI landscape is evolving, with breakthroughs in open-source models, such as DeepSeekMath-V2 achieving gold medal levels in mathematical reasoning [1][3]. - ByteDance and ZTE are collaborating on an AI phone set to launch in December, indicating a strong push towards AI integration in consumer electronics [1]. Summary by Sections Subsector Insights - Servers: The server index increased by 4.60% this week, with AWS announcing a historic expansion of nearly 1.3GW in AI/HPC data centers. OpenAI anticipates a significant increase in training and inference demand driven by an expected 220 million paid users [2][7]. - Optical Modules: The optical module index rose by 16.46% this week, with Google emphasizing the need for a doubling of computing power every six months, leading to sustained growth in TPU cluster scale and demand for optical modules [2][7]. - IDC: The IDC index increased by 5.58% this week, with Alibaba's potential Capex increase and the explosive growth of the Qwen app driving further demand for IDC construction [3][10]. Key Data Updates - Telecom business revenue reached 1.467 trillion yuan from January to October 2025, showing a year-on-year growth of 0.9%. The total telecom business volume grew by 9% year-on-year when adjusted for last year's prices [4][13]. - In October, China's optical module export value decreased by 11% month-on-month and 27.6% year-on-year, with a cumulative year-on-year decline of 17% from January to October [4][30]. Market Trends - The communication sector saw a weekly increase of 8.70%, ranking first among all industries. Key players like Guangku Technology and Tongyu Communication experienced significant stock price increases [38][41].