流光溢彩，智算成城——从三季报看通信如何布局？

Core Viewpoint - The communication industry is experiencing an upward trend driven by the powerful engine derived from the AI wave, with significant performance differentiation across various segments [1]. Communication Industry Summary - In Q3 2025, the total revenue reached 632.1 billion yuan, representing a year-over-year increase of 3.7% [2]. - The net profit for the same quarter was 60.305 billion yuan, showing a year-over-year growth of 12.3% [2]. - Profitability metrics for Q3 2025 indicated a gross margin of 27.97% and a net margin of 9.54%, with a gross margin decrease of 0.40 percentage points and a net margin increase of 0.73 percentage points year-over-year [2]. Optical Module Industry Summary - The Wind Optical Module Concept Index reported a revenue of 29.590 billion yuan in Q3 2025, reflecting a year-over-year increase of 56.0% [5]. - The net profit for the optical module sector in Q3 2025 was 7.336 billion yuan, which is a remarkable year-over-year increase of 118.8% [6]. - Profitability for the optical module sector showed a gross margin of 39.07% and a net margin of 24.79%, with increases of 5.59 percentage points and 7.12 percentage points year-over-year, respectively [7]. Inventory Insights - As of the end of Q3 2025, the inventory balance stood at 33.212 billion yuan, marking a year-over-year increase of 47.6% and a quarter-over-quarter increase of 7.44% [8]. Investment Opportunities - Investors are encouraged to consider the communication ETF (515880) and the ChiNext AI ETF (159388) as potential investment vehicles in light of the strong performance in the optical module sector [1].