美国政府“停摆”时长创纪录；纳指期货下跌，中概股普跌；谷歌提出将AI数据中心建于太空，320亿美元收购通过反垄断审查【美股盘前】

Group 1 - Dow futures rose by 0.10%, while S&P 500 and Nasdaq futures fell by 0.15% and 0.30% respectively [1] - Palantir's stock dropped over 2% after investor Michael Burry disclosed a significant short position in the company, with put options valued at $912 million [1] - Chinese concept stocks experienced a widespread decline, with Alibaba down 2.02%, Pinduoduo down 0.62%, and JD down 2.93% [2] Group 2 - Tesla's CEO Elon Musk announced that the AI5 chip is expected to begin mass production in 2027, with TSMC and Samsung as manufacturers [2] - Google proposed a concept for space-based data centers to address resource limitations on Earth, utilizing solar-powered satellites [2] - Stellantis announced a global recall of 375,000 plug-in hybrid Jeep Wrangler and Grand Cherokee SUVs due to battery-related fire incidents [3] Group 3 - The U.S. government shutdown has reached a record duration of 36 days, surpassing the previous record of 35 days [3] - Google's $32 billion acquisition of cybersecurity firm Wiz has passed antitrust review by the U.S. Department of Justice [3] - Novo Nordisk has lowered its growth outlook for obesity and diabetes treatment drugs due to increased competition and pricing pressure [4]