近一个月规模增超136%，航空航天ETF（159227）成交额、规模暂居同标的第一，长城军工涨超7%

Group 1 - A-shares experienced volatile trading on July 31, with sectors like optical modules, GPT, and AI computing gaining strength, while steel, non-ferrous metals, and coal industries lagged [1] - The aerospace ETF (159227) saw significant trading activity, with a transaction volume exceeding 66 million yuan, ranking first among similar products; key holdings like Aerospace Chenguang hit the daily limit, and other stocks also saw notable gains [1] - The aerospace ETF (159227) attracted over 400 million yuan in inflows in July, reaching a total size of 760 million yuan, marking a record high since its inception, with a growth of over 136% in the past month [1] Group 2 - Western Securities emphasized the importance of commercial aerospace investment opportunities, highlighting that the rapid development of low-orbit satellites and the capacity of commercial rockets are crucial for China's commercial aerospace sector [2] - The shift from state-owned entities to a diverse range of private companies in rocket design and manufacturing is noted, indicating a growing competitive landscape in the commercial launch market [2]