Core Insights - Over the last three years, artificial intelligence (AI) has significantly influenced market trends, with the S&P 500 and Nasdaq Composite indices nearing record highs, largely driven by megacap technology stocks [1] - Berkshire Hathaway, under Warren Buffett's leadership, has adopted a contrarian approach during the AI boom, primarily selling stocks and accumulating cash while investing in Treasury bills [2] - Recently, Berkshire Hathaway made a notable investment by acquiring a stake in Alphabet, marking a shift in its investment strategy after years of cash accumulation [3] Company-Specific Insights - Berkshire Hathaway has historically favored consumer businesses and financial services, with significant investments in insurance companies, banks, and consumer brands [5] - Buffett's investment in Apple in 2016 was seen as a rare venture into technology, but the company met many of Buffett's investment criteria due to its strong brand, consumer loyalty, and cash flow [6] - Berkshire has reduced its position in Apple by over 70% in recent years, with a notable decrease of approximately 73% since the end of 2023, amidst criticisms of Apple being late to the AI market [7][8]