通信ETF（515880）回调超5%，还能相信“光”吗？

Core Viewpoint - The communication ETF (515880) has experienced a significant pullback after a strong performance, with a net inflow of over 1.7 billion yuan in the last four days, raising questions about future investment in the "light" sector [1][6]. Group 1: Communication ETF Performance - The communication ETF (515880) has shown exceptional performance in the A-share market this year, with a nearly 100% increase, making it the top-performing ETF [1][6]. - The ETF's current scale exceeds 11.6 billion yuan, ranking first among similar products, with over 50% of its holdings in optical modules [6][7]. Group 2: AI and Optical Module Market - NVIDIA's GTC conference revealed expectations of shipping 20 million Blackwell-Rubin architecture chips between 2025 and 2026, indicating a potential revenue visibility of approximately 500 billion yuan for data center operations [3]. - The demand for computing power is expected to increase, with OpenAI's recent actions indicating a supply-demand imbalance in computing resources [4]. - The optical module market is projected to grow significantly, with a potential doubling of the market size for 400G and above modules next year [4][5]. Group 3: Future Outlook - The AI industry is rapidly expanding, with domestic GPU production accelerating and a strong demand for optical modules driven by the release of computing chips [5]. - The market for 100G+ modules is expected to grow by 54%, 69%, and 34% in 2025, 2026, and 2027, respectively, reaching market sizes of 14.4 billion, 24.4 billion, and 32.7 billion yuan [5]. - The overall macroeconomic environment is improving, suggesting a potential for sustained liquidity and investment opportunities in the A-share market [5].