通信ETF（515880）盘中涨超1.4%，海外算力与液冷技术推动行业景气度

Group 1 - OpenAI has officially launched GPT-5, which is described by CEO Sam Altman as a significant leap from previous models, comparing GPT-4 to a college student and GPT-5 to a true expert [1] - Huachuang Securities notes that the overseas computing power industry chain is accelerating, with continued investment in computing infrastructure expected to maintain a high level of demand in the optical module market [1] - The adoption of liquid cooling technology is gaining attention, with Nvidia's GB200 to GB300 entering mass production, leading to increased usage of cold plates, supported by major companies like Microsoft and Google building new data centers [1] Group 2 - The communication industry is experiencing steady growth driven by dual factors of computing infrastructure development and AI technology [1] - The Communication ETF (515880) tracks the communication equipment index (931160), which selects listed companies involved in communication network infrastructure and related products, reflecting the overall performance of these companies [1] - The index focuses on companies in the telecom equipment and network hardware sectors, representing the development level of China's communication equipment manufacturing industry [1]