Artificial Intelligence 23.6% of Berkshire Hathaway’s Portfolio Is Invested in These 3 Artificial Intelligence (AI) Stocks. Which One Is the Best? – Yahoo Finance Google Inc. November 25, 2025 November 25, 2025 23.6% of Berkshire Hathaway's Portfolio Is Invested in These 3 Artificial Intelligence (AI) Stocks. Which One Is the Best? Yahoo Finance