港股科技ETF（159751）涨超3%，英伟达GTC 2025大会举行China AI Day，机构认为科技成长板块仍为主线

Group 1 - The Hong Kong stock market showed positive momentum with the Hang Seng Index rising by 1.91% and the Hang Seng Tech Index increasing by 2.81% as of the morning of March 18 [1] - The Hong Kong Tech ETF (159751) experienced a gain of 3.28%, with a trading volume exceeding 55.88 million and a turnover rate of 11.8%, indicating active trading [1] - Notable gains were observed in component stocks, with WuXi AppTec rising over 13%, WuXi Biologics increasing by over 7%, and Alibaba, Kuaishou, and Bilibili each gaining over 4% [1] Group 2 - China AI Day, part of NVIDIA's GTC 2025 conference, will feature major domestic cloud and internet companies sharing advancements in large language models (LLM), multimodal large language models (MLLM), data science, and search promotion [1] - The event will include participation from companies such as ByteDance, Alibaba Cloud, Baidu, Ant Group, JD.com, Meituan, Kuaishou, and others, showcasing how they optimize AI performance and efficiency through hardware and software collaboration [1] Group 3 - Overall, external disturbances are stabilizing, and the spring market is expected to continue, driven by demand recovery and supply contraction leading to profit improvements and capital inflows [2] - The technology growth sector remains a primary focus, with a mid-term trend of confidence reassessment in Chinese assets expected to persist [2] - After a sustained upward trend in the Hong Kong stock market, the proportion of stocks above the 20-day moving average rose from 22.9% to a high of 90.4% on March 7, indicating a significant market breadth improvement [2]