一句话引发巨头集体闪崩

Core Viewpoint - OpenAI executives' comments regarding the need for government backing for their chip investments have raised concerns about a potential AI bubble, leading to a significant decline in major US tech stocks [1][3][4]. Group 1: Market Reaction - US and European stock markets experienced a collective decline, with major tech stocks like Nvidia and Tesla falling over 3%, and Supermicro Semiconductor dropping more than 7% [1][2]. - The sudden drop in stock prices was attributed to fears stemming from OpenAI's CFO Sarah Friar's remarks about seeking a government backstop for financing [3][4]. Group 2: Employment and Economic Indicators - The US job market shows signs of cooling, with nearly 950,000 layoffs announced by companies as of September, marking the highest level for this period since 2020 [3][4]. - The Challenger report indicated that over 150,000 jobs were cut in October, the highest number for that month in over two decades, driven by cost-cutting measures and AI adoption [4]. Group 3: Valuation Concerns - Various valuation indicators signal potential overvaluation in the US stock market, with the Buffett Indicator showing the market cap exceeding GDP by more than double, a level not seen since the internet bubble [4][5]. - The S&P 500's Shiller P/E ratio is approaching levels seen during the 1999 internet bubble, raising alarms about a possible market correction [4][5]. Group 4: Investment Strategies and Warnings - Notable investors like Michael Burry are heavily shorting AI stocks, indicating a bearish outlook on the sector [6][10]. - Warren Buffett has opted to hold cash reserves at a record $381.7 billion, reflecting a cautious stance amid rising market valuations [11][13]. - High-profile figures like Goldman Sachs CEO David Solomon and Bridgewater's Ray Dalio have issued warnings about the sustainability of current market trends, emphasizing the cyclical nature of markets and the risks of an AI-driven bubble [18][22][24].