加密货币市场24小时蒸发1500亿美元；美联储主席鲍威尔将发表讲话；现货白银一度涨破53美元/盎司创纪录【美股盘前】

Group 1 - Dow futures fell by 0.53%, S&P 500 futures dropped by 0.84%, and Nasdaq futures decreased by 1.10% [1] - Nvidia's stock surged nearly 25% in pre-market trading after the company announced progress in developing chips for Nvidia's data center infrastructure [1] - Major tech stocks, including Nvidia, Broadcom, and Oracle, all fell over 2% in pre-market trading, while Chinese concept stock Bilibili dropped by 5% [1] Group 2 - The cryptocurrency market experienced a significant decline, with a total market cap loss of over $150 billion in 24 hours; Bitcoin fell by 3.75% to approximately $111,500, and Ethereum dropped by 7.5% below $4,000 [1] - Silver prices broke through $53 per ounce, marking a historical record, with an 80% increase this year, significantly outpacing gold's 55% rise [2] - Google announced plans to invest $15 billion in building a 1 GW AI data center in Andhra Pradesh, India, marking one of its largest investments in the country [2] Group 3 - The International Energy Agency (IEA) reported a worsening oversupply in the global oil market, with an expected increase in supply of 3 million barrels per day this year and 2.4 million barrels per day next year, while demand growth is projected at only 710,000 barrels per day and 699,000 barrels per day [3] - A Bank of America survey indicated that investor exposure to U.S. stocks has reached an eight-month high, with concerns about recession dropping to the lowest level since 2022; however, 54% of respondents believe AI stocks are in a bubble [3] - Nvidia's CEO Jensen Huang delivered the world's smallest AI supercomputer, NVIDIA DGX Spark™, to Elon Musk at SpaceX [3]