英伟达市值一夜蒸发超1.7万亿元，什么情况？

Group 1 - The core point of the article highlights that Nvidia's stock experienced a significant drop, with a single-day decline exceeding 5%, resulting in a market value loss of over $270 billion, marking the largest single-day drop in nearly 11 months [2] - Nvidia's stock closed at $184.89, down $10.67 or 5.46% from the previous trading day, with a trading volume of 360 million shares and a total transaction value of $67.5 billion, setting a new high for recent single-day trading volume [2][3] - The company's fourth-quarter revenue reached $68.127 billion, a 73% year-over-year increase, and net profit surged by 94% to $42.96 billion, significantly exceeding market expectations [5] Group 2 - Nvidia's data center business, a key growth driver, reported revenue of $62.3 billion in the fourth quarter, a 75% year-over-year increase, driven by strong demand for AI computing power [5] - Despite the strong financial results, market concerns persisted, leading to profit-taking by investors, indicating a potential disconnect between performance and stock price reaction [5][6] - Analysts from Wolfe Research have expressed a positive long-term outlook for Nvidia, citing its inclusion as a top AI stock for 2026, while also noting that concerns regarding the timing of product launches and AI spending sustainability are gradually diminishing [6]