抛售英伟达，顶级机构“大撤退”

Core Viewpoint - The recent actions of prominent investors, including Peter Thiel, raise concerns about a potential bubble in AI stocks, particularly following Thiel Macro's complete divestment from Nvidia. Group 1: Peter Thiel's Actions - Peter Thiel's hedge fund, Thiel Macro, has sold all 537,700 shares of Nvidia, which previously constituted approximately 40% of its stock portfolio, reducing its total stock holdings from $212 million to about $74 million by the end of September 2025 [1][3] - Thiel Macro also reduced its Tesla holdings by approximately 210,000 shares but still maintains a 39% allocation to Tesla in its portfolio [3] Group 2: Institutional Selling Trends - Major investment firms, including Bridgewater, have significantly reduced their Nvidia holdings, with Bridgewater cutting its stake by 65.3%, from 7.23 million shares to 2.51 million shares by the end of the third quarter [4] - SoftBank has sold all its Nvidia shares, realizing $5.8 billion from the sale [5] - Other notable institutions such as Barclays, Bank of America, UBS, and Citigroup have also reduced their positions in Nvidia during the third quarter [6] Group 3: Market Sentiment on AI Stocks - There is a growing debate regarding the potential bubble in AI stocks, with 54% of global fund managers expressing concerns that AI concept stocks have entered bubble territory, according to a Bank of America survey [7] - Conversely, some analysts, like Brian Levitt from Invesco, argue that while there are bubble-like characteristics in the market, it has not yet reached a typical bubble state, distinguishing it from the previous internet bubble [7] Group 4: Other Institutional Investments - Berkshire Hathaway has disclosed a holding of approximately $4.3 billion in Google-A shares, marking it as the tenth largest position in its portfolio, which is seen as a positive endorsement for the AI sector by top investment institutions [8]