机构称AI应用侧已逐步成熟，人工智能ETF（159819）全天获超3亿份净申购

Group 1 - The artificial intelligence sector experienced a pullback today, with the CSI Artificial Intelligence Theme Index down by 4.8% and the Shanghai Stock Exchange Sci-Tech Innovation Board AI Index down by 6.0% [1] - The AI ETF (159819) saw over 300 million shares in net subscriptions throughout the day, with its latest scale exceeding 25 billion yuan, making it the largest among similar ETFs [1] - Citic Securities noted that the overseas AI industry chain has seen continuous catalysts recently, with leading AI companies like OpenAI, Anthropic, and Google iterating on large models, indicating that AI applications are maturing and exploring more commercial models, which may lead to clearer long-term valuation for AI [1]