Buffett’s 1994 Advice That Still Destroys Most Investors’ Portfolios: He’d Rather ‘Own a Significant Portion of the Hope Diamond than 100% of a Rhinestone’

Core Idea - The article emphasizes the importance of owning significant portions of extraordinary businesses rather than complete ownership of mediocre ones, as articulated by Warren Buffett in his 1994 shareholder letter [1] Group 1: Investment Philosophy - Berkshire Hathaway's strategy involves accumulating partial stakes in dominant businesses with durable advantages and global scale, rather than seeking total control of less impactful companies [2] - These investments are characterized as long-term economic partnerships that allow Berkshire to benefit from the underlying economics of these businesses [2] Group 2: Case Studies - Coca-Cola serves as a prime example, where Berkshire's 7.8% ownership stake translated into an economic interest in 21 billion servings, resulting in nearly $200 million in earnings from this investment [3] - Similarly, Berkshire's 7% stake in Gillette, which controlled about 70% of the global market by revenue, provided an indirect claim on approximately $250 million of Gillette's sales in 1994, demonstrating the effectiveness of owning a portion of a dominant business [4]