SINOLINK SECURITIES·2025-12-21 09:22Investment Rating - The report suggests focusing on sectors driven by domestic AI development such as servers and IDC, as well as sectors like servers and optical modules driven by overseas AI development [5]. Core Insights - Google has launched the Gemini 3 Flash model, which maintains close inference capabilities to Gemini 3 Pro while achieving three times the speed of Gemini 2.5 Pro at a quarter of the cost [1]. - OpenAI plans to raise up to $100 billion in a new funding round, potentially valuing the company at $830 billion, with Amazon negotiating to invest at least $10 billion [1][60]. - Supermicro is collaborating with xAI to build the world's first 1GW data center in Memphis, utilizing NVIDIA's GB300 GPU [1]. - ByteDance is actively advancing in the AI sector, with significant model releases and partnerships with hardware manufacturers to pre-install AI plugins on devices [1]. - The optical fiber sector has seen significant price increases, with major manufacturers reporting a 15% rise in prices for certain products [1][3]. Summary by Sections Communication Sector Insights - The communication sector index decreased by 0.89% this week, ranking 27th among all industries [44]. - The telecom business revenue reached CNY 14,670 billion from January to October 2025, showing a year-on-year growth of 0.9% [4][27]. Subsector Performance - Server index decreased by 2.99% this week and 6.17% this month, with OpenAI's valuation expected to exceed $500 billion due to Amazon's investment [2][7]. - Optical module index decreased by 4.38% this week but increased by 14.35% this month, with Google optimizing AI chip performance for PyTorch [2][7]. - IDC index decreased by 2.77% this week but increased by 0.73% this month, with significant growth in AI model usage reported [2][8]. Key Data Updates - Telecom business volume growth is gradually improving, with a 9% year-on-year increase in telecom business volume calculated at constant prices [4]. - The export value of optical modules decreased by 27.6% year-on-year in October, primarily due to domestic companies establishing overseas factories [4][32]. Market Trends - The optical fiber index increased by 4.20% this week and 17.99% this month, indicating positive signals in price and volume metrics [3][12]. - The report highlights the robust growth of the domestic AI sector, particularly in server and IDC segments, driven by increasing demand and technological advancements [5].