SpaceX收购xAI，商业航天概念爆发，航空航天ETF、航天ETF、通用航空ETF、航空ETF大涨

Group 1 - SpaceX has acquired xAI, aiming to establish dominance in AI and space exploration, with the deal valuing SpaceX at $1 trillion and xAI at $250 billion, leading to a combined valuation of $1.25 trillion [3] - The acquisition is part of a broader strategy to leverage AI capabilities in space, with plans to launch a constellation of 1 million satellites to create a space-based data center powered by solar energy [3] - Elon Musk estimates that this initiative could generate 100 gigawatts of AI computing power annually, making space the most cost-effective location for AI computation within two to three years [3] Group 2 - The commercial aerospace sector is experiencing a surge, with significant increases in various aerospace ETFs, reflecting investor enthusiasm for the industry [2] - The aerospace ETFs track indices that cover aerospace and defense sectors, with a high concentration in military and satellite technologies, indicating strong alignment with emerging themes like low-altitude economy and commercial space [2] - Analysts predict that by 2026, significant events in commercial aerospace will catalyze market growth, with policies elevating the sector's strategic importance alongside semiconductors [4]