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Warren Buffett, one of history’s most celebrated investors, famously avoided technology stocks during his tenure as CEO of Berkshire Hathaway. He openly acknowledged that he did not understand the tech sector. Over time, however, he began directing the conglomerate’s capital into technology companies, a shift driven by evolving market conditions and his own investment principles.
Buffett has long advocated for simplicity in investing, urging people to focus on businesses and industries they could explain to a child. He emphasized that one should never invest in a business they cannot comprehend. Patience is another cornerstone of his approach: he advised that if an investor is not willing to own a stock for a decade, they should not consider owning it for even ten minutes. Long-term commitment, he argued, allows time for thorough understanding and the benefits of compounding. For those not interested in picking individual stocks, Buffett recommended a 90/10 rule—placing 90% of assets in a low-cost S&P 500 index fund and the remaining 10% in short-term government bonds.
In recent years, Buffett loosened his opposition to technology stocks. Some large tech platforms began to meet his traditional criteria of being understandable and possessing durable competitive advantages, or moats. He and Berkshire did not invest in every tech company; instead, Buffett sought businesses he thoroughly understood. His preference for moats over momentum meant he avoided hyped-up, short-lived trends. He wanted assurance that a company had a sustainable competitive advantage capable of protecting profits over time. Today, Berkshire Hathaway’s portfolio includes Apple, Amazon, and Alphabet.
When asked in 2023 which sector he would focus on if he were to live another 50 years, Buffett, then 92 years old, pointed to technology. He described it as a huge field likely to produce a few enormous winners alongside many disappointments. He noted that the ability to identify those winners could significantly impact Berkshire Hathaway’s performance.
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