Yahoo Financeยท2025-09-21 23:00Group 1 - Warren Buffett, known as the "Oracle of Omaha," has successfully utilized commonsense investing principles to elevate Berkshire Hathaway into a trillion-dollar company [1] - Apple remains Berkshire's largest holding, with a return of over 750% since Buffett's initial investment in 2016, despite a recent partial sale of shares [3][5] - The recent launch of the iPhone 17, which featured only incremental improvements, may lead to a significant revenue boost for Apple, as nearly one-third of iPhones in use are iPhone 13 or older [4][5] Group 2 - Berkshire Hathaway has the lowest valuation among trillion-dollar U.S. companies, with trailing earnings at 16.9x and trailing sales at 11.9x [6] - Amazon's valuation has significantly decreased from over 110x trailing earnings to 35.2x, making it a "wonderful company at a fair price" [6] - Amazon's e-commerce business continues to dominate, accounting for only 16.3% of U.S. retail sales, while its cloud computing segment, AWS, reported a year-over-year revenue growth of 17% [6][8]