Group 1 - The three major indices opened significantly lower but rebounded, with the aerospace and defense sector showing notable recovery. The aerospace ETF (159227) turned positive, rising by 0.42% with a latest scale of 1.353 billion yuan, maintaining its position as the largest in its category [1] - The upcoming "Technology + Military" Future Warfare High-end Forum on October 22 will gather experts from military and technology sectors to explore the integration of technology and military strategies, focusing on the changing dynamics of warfare [1] - China Galaxy Securities indicates that "high quality" and "low cost" will be the core guiding principles for future military production. The pricing mechanism for military products may become stricter, leading to increased pressure on gross margins for companies in the short term, while promoting efficiency improvements in the long term [1] Group 2 - The aerospace ETF (159227) closely tracks the National Aerospace Index, focusing on core military aerospace sectors. It has a high concentration with 98.2% of the Shenwan first-level military industry, making it the highest "military purity" index in the market. The weight of aerospace equipment in its constituent stocks is 68%, significantly surpassing other military indices [2]