低空经济开启新蓝海，航空航天 ETF（159227）涨超1.15%，三角防务涨停

Core Viewpoint - The aerospace ETF (159227) is experiencing significant growth, with a 1.59% increase and a trading volume of 1.25 billion yuan, indicating strong market interest and performance in the aerospace sector [1]. Group 1: ETF Performance - The aerospace ETF (159227) has reached a total scale of 1.726 billion yuan, making it the largest aerospace ETF in the market [1]. - Key holdings in the ETF, such as Triangular Defense and Aero Engine Corporation of China, have hit the daily limit, reflecting positive investor sentiment [1]. Group 2: Industry Developments - The 2025 Nanchang Flight Conference and Aerospace Industry Expo recently concluded, showcasing over 60 aerospace companies and research institutions, highlighting advancements in low-altitude economy products [1]. - The low-altitude economy is seeing significant breakthroughs across policy and industry levels, with a potential trillion-yuan market emerging [1]. - The aerospace ETF closely tracks the Guozheng Aerospace Index, selecting leading companies in sectors such as large aircraft manufacturing, low-altitude economy, and commercial aerospace [1].