美股大型科技股盘前涨跌互现，英伟达涨0.2%

Core Viewpoint - Major U.S. tech stocks showed mixed performance in pre-market trading, with Nvidia slightly up while other key players remained flat or declined [1] Group 1: Stock Performance - Nvidia increased by 0.2% in pre-market trading [1] - Microsoft, Apple, and Alphabet (Google A) remained unchanged [1] - Meta, Amazon, and Tesla experienced a decline of 0.1% [1]