美股大型科技股盘前普跌

Group 1 - Multiple AI concept stocks declined in pre-market trading, with Nvidia's drop expanding to 3%, TSMC down 2.9%, and AMD and Oracle falling over 2% [1] - Major tech stocks also experienced declines, including Apple, Tesla, Google, and Microsoft, all trading lower in pre-market [2] - In the Chinese concept stock sector, Xpeng Motors fell over 3%, Alibaba dropped over 2%, and Baidu Group decreased by 1.35% [3]