The Motley Foolยท2025-11-11 02:02Core Insights - Warren Buffett's retirement marks the end of an era for Berkshire Hathaway, a company he transformed from a textile manufacturer into a diversified conglomerate with interests in various sectors [1][3] - Over his 60-year career, Buffett has built an investment portfolio valued at over $300 billion, achieving an annual compounded growth rate of 19.9%, significantly outperforming the S&P 500's 10.4% [2] Company Summaries - American Express: Berkshire Hathaway holds a 22% stake in American Express, which targets affluent customers and offers unique rewards. The company also generates significant revenue from personal loans, earning $5.97 billion in Q3 from interest [4][6] - Amazon: Although Buffett was late to invest, Amazon's dominance in e-commerce and cloud computing (AWS) makes it a strong investment. AWS generated $33 billion in Q3 with a profit margin of 34.6%, while Amazon's overall revenue was $147.16 billion with a 4% profit margin [7][9][10] - Apple: Apple remains Berkshire Hathaway's largest holding, comprising 24.1% of its portfolio. Despite a reduction in shares, Apple generated $102.4 billion in sales, with $49 billion from iPhones and $28.7 billion from its Services division, which grew 15.1% year-over-year [10][12][13] - Kroger: As a defensive investment, Kroger operates over 2,700 stores and focuses on private-label products that offer higher profit margins. The company is well-positioned to perform during economic downturns [14][15][16] - Chevron: Berkshire Hathaway holds a 6% stake in Chevron, which has seen a 27% increase in U.S. production and a 21% increase globally. Despite lower oil prices leading to a revenue decline to $3.53 billion in Q3, Chevron's dividend yield of 4.5% makes it an attractive long-term investment [17][18][19]