SINOLINK SECURITIES·2025-12-07 09:29Investment 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 - Marvell reported revenue of $2.075 billion for the quarter, exceeding market expectations and guidance by $15 million, and announced the acquisition of Celestial AI for approximately $3.25 billion to enhance its position in the CPO field [1][50] - AWS launched the AI training chip Trainium 3 with a computing power of 2.52 PFLOPS FP8 at its annual cloud computing event, indicating strong growth in AI infrastructure [1] - Credo's Q2 FY2026 revenue reached $268 million, a year-over-year increase of 272.1%, driven by growth in its core AEC and IC businesses [1] - DeepSeek introduced two AI models, achieving performance levels close to GPT-5, indicating advancements in domestic AI capabilities [1][47] - ByteDance's Doubao team launched the "Doubao Phone Assistant," with the first device selling out quickly, showcasing the potential for AI applications in consumer electronics [1] Summary by Sections Communication Sector - The communication sector shows a steady upward trend, with significant investments in cloud and IDC businesses compensating for pressures in traditional telecom services [14] Server Sector - The server index decreased by 1.22% this week, but AWS's announcement of a significant expansion in AI/HPC data centers suggests ongoing demand growth [2][7] Optical Modules - The optical module index increased by 4.67%, supported by Marvell's strong quarterly performance and strategic acquisition [2][7] IDC Sector - The IDC index rose by 0.50%, with DeepSeek's new AI models expected to drive demand in data centers [3][8] Core Data Updates - Telecom business revenue reached 1.467 trillion yuan in the first ten months of 2025, a year-over-year increase of 0.9% [4][15] - The export value of optical modules decreased by 27.6% year-over-year in October, attributed to domestic companies establishing overseas factories [31] Market Trends - The communication sector's performance this week ranked second among all industries, with notable gains in specific companies [39][42]