'Humans love to gamble': With the breakthrough of AI in the stock market, Warren Buffet's warning against gamblers who supplant investors

Warren Buffett, chairman of Berkshire Hathaway, has issued a stern warning against the growing influence of algorithmic trading and speculative behavior in financial markets, calling them a threat to traditional investing principles. Speaking during his final major interview with CNBC on July 14, 2026, the 95-year-old investor described modern stock markets as increasingly resembling a “casino,” driven more by speculation than fundamental value. His remarks come amid rising concerns over the rapid advancement of artificial intelligence in finance, which some argue is shifting market dynamics away from long-term investment strategies toward high-frequency, data-driven decision-making. Buffett’s comments were delivered in the context of a broader discussion on the changing landscape of global equity markets. He emphasized that while profits remain central to successful investing, they are not the sole determinant of value. Instead, he stressed the importance of understanding business fundamentals and maintaining patience, a trait he believes is being eroded by the rise of automated trading systems and the culture of quick returns. “When people who have billions say things, everyone listens,” he remarked, echoing a line from the 1964 film Cent Mille Dollars Au Soleil, highlighting how his words carry weight in both public perception and market behavior. The interview took place just weeks after a series of market volatility episodes triggered by AI-driven trading algorithms, which some analysts claim have contributed to increased price swings and reduced liquidity in key sectors. These developments have sparked debate among investors and regulators alike, with calls for greater oversight of algorithmic trading practices. Buffett, known for his long-term approach and emphasis on value investing, sees these trends as a challenge to the stability of financial markets and the integrity of the investment process. In recent years, the integration of artificial intelligence into trading platforms has allowed for faster execution of trades and more complex predictive models. However, critics argue that this shift has led to a decline in the quality of available investment opportunities, as many companies are valued based on speculative growth rather than tangible earnings. Buffett pointed to this trend as one of the primary reasons why he views today’s markets as less predictable and more volatile than in previous decades. His remarks align with a broader sentiment among veteran investors who worry that the increasing dominance of technology in financial markets is undermining the role of human judgment. While AI can process vast amounts of data and identify patterns beyond human capacity, Buffett argues that it lacks the ability to assess long-term value or understand the nuances of corporate strategy. “It’s hard to know what the future holds,” he admitted, “but relying solely on machines to make decisions is risky.” The implications of Buffett’s warning extend beyond the immediate concerns of market stability. They touch on deeper philosophical questions about the nature of investing itself, whether it should be guided by logic, intuition, or a combination of both. As AI continues to evolve, the balance between technological innovation and traditional financial wisdom will likely remain a subject of intense scrutiny. Investors, regulators, and industry leaders will need to navigate this evolving landscape carefully, ensuring that progress does not come at the expense of sound financial principles.