带“崩了”！科技股全线大跌！发生了什么？

Market Overview - The U.S. stock market saw all three major indices close lower, with the Nasdaq dropping nearly 2% [2][4] - The Dow Jones index fell by 0.47%, the S&P 500 decreased by 1.16%, and the Nasdaq declined by 1.81% [4][5] Technology Sector Performance - Oracle's stock dropped over 5% after a major investor withdrew from a $10 billion data center project, raising concerns about the company's debt levels and spending [9][8] - The "Big Seven" tech stocks in the U.S. all experienced declines, with Tesla down 4.62%, Nvidia down 3.81%, and Google down 3.14% [11] AI and Tech Developments - Google is enhancing its TPU chips to better support PyTorch, aiming to challenge Nvidia's dominance in the AI chip market [12] - Amazon announced a restructuring of its AI-related project teams, integrating its general AI team with its chip development and quantum computing research [13] Chinese Market Impact - The Nasdaq Golden Dragon China Index fell by 0.73%, with major Chinese stocks like Alibaba and JD.com also declining [16][15] - Alibaba's stock decreased by 1.49%, while Baidu saw a slight increase of 0.16% [17] IPO Activity - Medline's stock surged 41.38% on its first trading day, with an IPO price of $29 and raising $6.26 billion [18][19] Commodity Market Movements - International gold prices and crude oil rebounded, with WTI crude oil index rising nearly 3% after reaching a yearly low [21][23]