天量回调！商业航天今日熄火！这个板块午后却突然爆发，千亿龙头十分钟爆拉12%，直冲涨停！

Market Overview - The A-share market experienced a collective pullback, with the Shanghai Composite Index ending a 17-day winning streak, closing down 0.64% at 4138.76 points. The Shenzhen Component fell 1.37% to 14169.40 points, and the ChiNext Index dropped 1.96% to 3321.89 points. The total trading volume in Shanghai, Shenzhen, and Beijing reached 36.991 billion, an increase of 54.1 billion from the previous day, setting a new historical high [2]. Sector Performance - Most industry sectors saw declines, with precious metals, medical services, mining, and biopharmaceuticals leading in gains. In contrast, aerospace, communication equipment, computer devices, shipbuilding, semiconductors, and electronic chemicals faced significant losses [2]. - The AI application concept stocks rose against the trend, with over ten component stocks hitting the daily limit. The AI medical concept remained active, with stocks like Meinian Health and Hongbo Pharmaceutical achieving consecutive limit-ups [2][8]. Electric Power Sector - The electric power sector saw a sudden surge in the afternoon, with stocks like Tebian Electric Apparatus and Sanbian Technology hitting the daily limit. Other companies in the transformer industry also experienced significant gains [3][5]. AI and Energy Demand - The explosion of AI has led to a surge in electricity consumption in data centers, causing increased electricity costs for residents in some areas of the U.S. Former President Trump stated that tech giants must bear the costs of building AI data centers to avoid raising electricity bills for Americans. Elon Musk emphasized that energy (watts) will become the essence of currency in the AI and robotics era [6]. - TrendForce analysts noted that North America is experiencing strong demand for transformer markets due to aging grid updates and the massive energy needs of AI data centers. The supply gap for power transformers and distribution transformers in North America is estimated at 30% and 6%, respectively [6]. AI Medical Sector - The AI medical industry is entering a golden development period, with innovations in medical imaging AI-assisted diagnosis, intelligent surgical robots, and AI platforms for drug development accelerating. The ecosystem is forming from algorithm development to product application [12]. - Recent collaborations, such as the one between NVIDIA and Eli Lilly, aim to enhance drug development through advanced computational capabilities [11]. Commercial Aerospace Sector - The commercial aerospace sector, which had been a star performer, saw a significant pullback, with the theme index dropping 5.83%. Over 40 stocks in this sector hit the daily limit down, indicating a market correction after a strong rally [14][17]. - Despite being recognized as a new economic growth engine, the commercial aerospace sector faces risks due to its reliance on government and enterprise clients, and the sustainability of profit models in the consumer market remains uncertain [17].