For more than two decades, The Warren Buffett Portfolio has guided investors toward mastering the art of focus investing―a strategy that concentrates on a select group of superior businesses rather than spreading resources thin across countless holdings. With the release of the 25th Anniversary Edition, Robert G. Hagstrom, one of the most respected interpreters of Warren Buffett's investment philosophy, offers fresh insights into why concentrated portfolios remain the key to long-term wealth creation, even in today's volatile markets. This updated edition addresses the limitations of conventional portfolio theory and challenges readers to rethink risk, diversification, and market efficiency through the lens of Buffett's remarkable success.

Hagstrom expands the original work with powerful new material that reflects what he has learned since introducing the concept of focus investing. New chapters explore the philosophy of focus investing including a deeper exploration of Charlie Munger's 'Art of Achieving Worldly Wisdom.' In addition, there are new chapters on the mathematics of focus investing, the psychology of focus investing, and how to think about the structure of markets.

Combining rigorous analysis with practical guidance, The Warren Buffett Portfolio: Mastering the Power of the Focus Investment Strategy, 25th Anniversary Edition, is essential listening for undergraduate and graduate students in finance, economics, and investment management courses, especially within MBA and CFA programs. It also serves as a trusted reference for professional investors, portfolio managers, and financial advisors seeking to refine their strategies and achieve superior results.