私募排排网·2025-11-19 10:00Core Viewpoint - The article discusses the significant divergence in AI investments among major Wall Street financial institutions, highlighting contrasting strategies and positions taken by firms like Bridgewater, Berkshire Hathaway, and Michael Burry's Scion Asset Management [2][3][6]. Group 1: Investment Actions of Major Firms - Bridgewater drastically reduced its holdings in Nvidia by 65% to 2.51 million shares, moving it from the third to the sixth largest position in their portfolio [3][4]. - Michael Burry's Scion Asset Management initiated a substantial short position, acquiring approximately $1.87 billion in put options for Nvidia and $9.12 billion for Palantir, representing nearly 80% of his fund's total holdings [6][7]. - Citigroup also significantly cut its exposure to AI stocks, reducing its Nvidia holdings by about 28% and increasing its put options on Nvidia by 67% [8][9]. Group 2: Market Reactions and Trends - Following the release of Q3 earnings reports, major tech stocks experienced volatility, with Nvidia dropping over 4% and Microsoft declining more than 3% in two trading days, while Google saw a nearly 3% increase [2][6]. - The article notes that the current market environment resembles the 1998-1999 internet bubble, with concerns about overvaluation in the AI sector [5][6]. - Morgan Stanley and other firms are optimistic about Nvidia's upcoming earnings, predicting revenues could exceed $55 billion, with guidance as high as $63-64 billion [15]. Group 3: Notable New Investments - Berkshire Hathaway made headlines by purchasing 17.84 million shares of Google, marking its first investment in the tech giant, which now represents a significant position in their portfolio valued at $4.34 billion [11][12]. - In contrast, Invesco's top five purchases in Q3 were all tech stocks benefiting from the AI wave, including Nvidia, Apple, and Google, indicating a strong belief in the sector's growth potential [16].