Nvidia stock on track to end week down more than 10% amid investor concerns over AI valuations

Core Viewpoint - Nvidia's stock has experienced significant volatility, leading a sell-off in the tech sector amid concerns of an AI-driven market bubble [1][8] Group 1: Stock Performance - Nvidia's shares are on track to decline more than 10% over the past week, reflecting a challenging trading environment for the chipmaker [2] - The stock fell as much as 4% on Friday, contributing to the overall downturn in tech stocks [1] Group 2: Market Sentiment and Government Stance - Comments from a Trump official indicated that the government has no plans to support the AI industry, which has heightened investor anxiety [3] - OpenAI's CFO suggested a desire for government guarantees to facilitate AI chip financing, but this was later dismissed by the company's CEO [4] Group 3: Competitive Landscape - Nvidia's CEO expressed concerns that China is close to surpassing the U.S. in the AI race, emphasizing the need for America to lead in developer engagement [5][6][7]