Dimensional Founder David Booth | Investing, Market Uncertainty and True Wealth

How should investors navigate market uncertainty without letting fear derail their long-term plans? Dimensional Fund Advisors Founder and Chairman David Booth, a New York Times bestselling author, joins Creative Planning President and CEO Peter Mallouk on Icons and Ideas to discuss the investing principles, academic research, and life lessons behind one of the world’s most influential investment firms. David shares how studying under Nobel laureate Eugene Fama helped shape his belief in applying the science of investing rather than trying to outguess the market. He takes Peter inside the early days of Dimensional Fund Advisors, from testing the idea of a small-cap fund with institutional investors to working with Vanguard founder Jack Bogle to help launch the firm’s first mutual fund. David and Peter also explore why uncertainty creates opportunity, the behavioral mistakes that can permanently hurt investors and why remaining invested matters during volatile markets. Beyond investing, David reflects on philanthropy, purchasing James Naismith’s original rules of basketball, the meaning of true wealth and the values that have guided his career and life. What You’ll Learn ✅ How academic research helped shape David Booth’s approach to investing and the creation of Dimensional Fund Advisors ✅ Why uncertainty is a necessary part of investing and can create opportunities for long-term investors ✅ Why investor behavior and staying invested can matter as much as investment strategy ✅ How David thinks about true wealth, philanthropy, values and building a meaningful legacy Timestamps (00:00) Why uncertainty creates investment opportunity (01:12) The leadership lesson David Booth learned selling shoes (03:32) How Eugene Fama changed David’s approach to investing (06:06) The early research that helped shape modern investing (08:35) The idea that became Dimensional Fund Advisors (12:25) How Jack Bogle helped Dimensional get started (13:28) Why uncertainty creates investment opportunity (16:39) Why there are no mulligans in investing (18:15) Why investors need the right financial advisor (19:33) The science behind Dimensional’s investment philosophy (21:12) Buying the original rules of basketball (25:12) David Booth’s approach to philanthropy and true wealth (32:25) Why you should “go for the best” in your career (33:24) The connection between art and the science of investing (35:53) The mentors who shaped David Booth (38:21) How to evolve your role throughout your career (39:53) What it means to feel safe as an investor Key Takeaways 🔹 Uncertainty creates opportunity. Investors can’t eliminate uncertainty, but they can seek opportunities for higher expected returns. 🔹 Staying invested matters. Emotional decisions during market declines can turn temporary volatility into permanent losses. 🔹 Investing should be evidence-based. Dimensional applies financial science and academic research to real-world investing. 🔹 True wealth goes beyond money. For David, wealth is rooted in family, values and what matters most. About David Booth David Booth is the Founder and Chairman of Dimensional Fund Advisors, a $1 trillion global investment firm known for its evidence-based approach. Over five decades, he has helped bridge academic research and practical investing, including work that helped shape index and factor investing. Booth studied at the University of Kansas and the University of Chicago, whose business school bears his name. His philanthropy also includes the largest donation in University of Kansas history and support for arts and conservation initiatives. Stay Calm: https://www.staycalminvesting.com/about-the-author LinkedIn: linkedin.com/in/david-g-booth Dimensional Fund Advisors Website: https://www.dimensional.com/ About the Host: Peter Mallouk is the President and CEO of Creative Planning, a financial advisor, an entrepreneur, a lawyer and a New York Times bestselling author. Since 2004, he has led Creative Planning in providing comprehensive wealth management services to individuals, families and businesses across the United States and abroad. Recognized as a leading voice in wealth management, investing and financial planning, Peter brings decades of experience to his conversations with some of the world’s most accomplished leaders and thinkers. Through Icons and Ideas, he explores the pivotal decisions, lessons, failures and experiences that shape extraordinary careers and meaningful lives. 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