突发！英伟达盘后一度跌超6%，市值蒸发超1.3万亿元！AMD盘后一度跌超7%！发生了什么？

Core Viewpoint - Nvidia's stock has dropped significantly, losing 6.52% in after-hours trading, resulting in a market value loss of approximately $178.4 billion (about 1305.1 billion RMB) due to concerns over U.S. government export restrictions on its H20 graphics processors [1]. Group 1: Financial Performance - Nvidia reported a quarterly revenue of $5.5 billion related to H20 graphics processor exports [1]. - For the fiscal year 2025, Nvidia's revenue reached $130.5 billion, marking a 114% year-over-year increase [8]. - The fourth quarter revenue was $39.3 billion, reflecting a 78% year-over-year growth, with net profit at $22.09 billion, up 80% [9]. Group 2: Market Impact - The U.S. government has indicated that Nvidia will need licenses to export chips to certain countries and regions, which may slow overall growth [1]. - Following Nvidia's stock decline, other tech stocks also experienced significant drops, including AMD, Broadcom, and Micron Technology, with declines ranging from 1.4% to over 7% [3][4]. - Futures for major indices such as the S&P 500 and Nasdaq also fell, with declines of up to 1.3% in early trading [5]. Group 3: Market Dynamics - Nvidia's data center market contribution from China remains low due to ongoing U.S. export controls, with expectations that this will continue [9]. - The competition in the local Chinese market is described as intense, contrasting with the higher revenue contributions from the U.S. data center market [9]. - Nvidia's CEO highlighted strong demand for their Blackwell architecture, driven by the increasing need for AI training and inference capabilities [9].