大厂需求加速，字节AIDC和算力链有望迎来订单爆发

Industry Investment Rating - The industry investment rating is maintained at "Outperform the Market" [2] Core Insights - The report highlights that major domestic companies are accelerating their capital expenditures, with ByteDance planning to invest approximately 160 billion RMB in 2026, up from 150 billion RMB in 2025. This increase is expected to drive demand for AI chips and related infrastructure [5] - The supply side is improving as domestic chip manufacturers enhance their self-sufficiency rates, with predictions indicating that China's chip self-sufficiency rate could rise from 58% in 2025 to 93% by 2028. Additionally, the potential easing of restrictions on NVIDIA's H200 products may alleviate the current supply constraints [6] - The report anticipates a recovery in order volumes for IDC (Internet Data Center) companies due to improved supply-demand dynamics driven by AI demand and policy support. This recovery is expected to lead to increased utilization rates and price signals, allowing for a return to normal valuation ranges [7] Summary by Sections Industry Overview - The closing index level is reported at 5425.46, with a 52-week high of 5841.52 and a low of 3966.07 [2] Demand and Supply Dynamics - Domestic CSP (Cloud Service Provider) companies are expected to see a significant increase in capital expenditures in 2026, with major players like ByteDance and Alibaba leading the charge [5] - The self-sufficiency of domestic AI chips is on the rise, with forecasts indicating substantial improvements in the coming years [6] Investment Recommendations - The report suggests focusing on IDC companies with strong regional positioning and resource reserves, including companies like Runjian Co., Dongyangguang, and Century Internet [8]