The Motley Fool·2025-12-19 07:32分组1 - Hedge fund Coatue Management sold 14% of its Nvidia stake, equating to 1.6 million shares, during the third quarter [2][4] - Coatue increased its stake in Alphabet by 259%, acquiring 5.2 million shares [2] - Nvidia's market capitalization has surged from approximately $345 billion in November 2022 to $4.3 trillion, making it the world's most valuable company [4][6] 分组2 - Alphabet has made significant advancements in AI, countering initial fears that chatbots would undermine its search engine business [10][11] - Alphabet's business model is vertically integrated, encompassing search, streaming, consumer electronics, cloud computing, and autonomous vehicles, all leveraging AI [12][13] - Alphabet's Google Cloud Platform has secured high-profile deals and is competitive with Amazon Web Services and Microsoft Azure [13] 分组3 - Alphabet's stock is currently the cheapest among cloud hyperscalers based on forward price-to-earnings ratio, although it has recently increased in valuation [14][16] - Notable investors, including Warren Buffett, have initiated positions in Alphabet, indicating growing confidence in the stock [17] - The potential of application-specific integrated circuits, such as Google's TPUs, may challenge Nvidia's dominance in the AI accelerator market [17][18]