The Motley Foolยท2025-11-10 00:30Core Insights - Warren Buffett is stepping down as CEO of Berkshire Hathaway, with Greg Abel set to succeed him, having prepared the company for this transition over nearly 60 years [1] - Buffett's investment strategy has focused on quality stocks and long-term holding, which has resulted in market-beating returns [1] Company Analysis Apple - Apple constitutes 22% of Buffett's portfolio, remaining the largest position despite a reduction in stake over the past year [4] - The company reported a record revenue of $416 billion for fiscal 2025, with a September quarter revenue increase of 8% to over $102 billion [7][8] - Apple's competitive advantage lies in its strong brand and the high demand for its products, particularly the iPhone, which maintains a loyal customer base [5][9] - The installed base of active Apple devices has reached an all-time high, creating opportunities for recurring revenue through services [8] Amazon - Amazon represents 0.8% of Buffett's portfolio, with Buffett expressing regret for not investing earlier but has since held onto shares [10] - The company's extensive fulfillment network and Prime subscription program provide a significant competitive moat [11] - Amazon has improved its cost structure, leading to increased profitability, and has not faced major challenges from import tariffs [12][13] - Amazon Web Services (AWS) is a key profit driver, with an annualized revenue run rate of $132 billion, positioning the company well in the growing AI market [14][15]