Dimensional Fund CEO David Booth: Masters in Business (Audio)

Episode Summary

Executive Summary: The episode centers on David Booth’s path from Chicago academic research to founding Dimensional Fund Advisors, and his case for evidence-based, low-cost, patient investing. Booth explains how Fama-French research, small-cap and value tilts, efficient trading, and disciplined client behavior helped drive DFA’s growth, while warning against market timing, yield-chasing, and weak governance.

Main Topics: Booth’s academic roots and pivot to investing (Priority: 5/5): Booth describes starting at Chicago expecting to become a professor, then realizing through work with Gene Fama that he wanted to apply research in markets rather than pursue academic publishing. Founding and early evolution of Dimensional (Priority: 5/5): He recounts launching an institutional index-style fund in 1971, then founding Dimensional in 1981 with zero assets and a focus on small-cap exposure before expanding into broader strategies. Dimensional’s investment philosophy and trading approach (Priority: 5/5): Booth explains that DFA is not a plain indexer: it tilts toward size and value, uses patient, opportunistic trading to reduce costs, and emphasizes tax efficiency and low turnover. Why indexing and factor investing work (Priority: 5/5): The discussion covers market efficiency, the Fama-French three-factor model, and Booth’s view that expected returns come from compensated risks rather than manager skill or market timing. Client behavior, retirement, and long-term compounding (Priority: 4/5): Booth stresses that investor success depends on sticking to a philosophy through downturns, starting early, saving more, and understanding how compounding and asset allocation affect retirement outcomes. Corporate governance and regulatory concerns (Priority: 4/5): He discusses DFA’s proxy voting, opposition to poison pills, and skepticism toward post-crisis regulation that treats mutual funds as systemic risks despite their limited role in the financial crisis. Firm growth and institutional-to-advisor expansion (Priority: 3/5): Booth explains how an early advisor relationship helped DFA expand from institutions into financial advisors, which now account for most of the firm’s assets.

Key Arguments: Booth argues that public-market investing is fundamentally a zero-sum game before costs, so investors should focus on what they can control: fees, taxes, diversification, and patience. He says the market rewards exposure to dimensions like small size, value, profitability, and investment characteristics because they reflect risk premiums, not easy arbitrage opportunities. He argues that patient trading—waiting for counterparties who want immediacy—can materially reduce implementation costs and improve long-run returns. He maintains that index investing succeeded because it is simple, neutral, and understandable, but DFA adds value by adjusting exposures and trading intelligently rather than mechanically replicating benchmarks. He says the biggest investor mistake is chasing recent winners and yield, which often leads to buying risk at the wrong time. He believes retirement planning should be based on lifetime goals, realistic savings, and compounding, not short-term market forecasts. He argues mutual funds were not a cause of the financial crisis and should not be treated like banks; money market funds are a different issue because of their quasi-guaranteed framing. He says good investing is not only about returns but also about helping clients stay calm and committed during periods like 2008-2009.

Data Points: Dimensional AUM today: over $400 billion - Booth describes the firm as a large asset manager with assets above this level. Starting assets: $0 - Dimensional launched in 1981 with no assets under management. First-year assets: about $80 million - Booth says the firm reached roughly this level in its first year and a half. First decade AUM: $4 billion - Approximate size by 1990. AUM in 1999: $30 billion - Approximate size at the end of the dot-com era. AUM in 2009: $124 billion - Approximate size after the financial crisis period. AUM around 2010: a little over $200 billion - Booth cites this as an intermediate milestone. Advisor channel share: about 60% of business - Financial advisors now represent the majority of DFA’s assets. Advisor firms served: about 3,000 - Booth says DFA works with thousands of advisory firms. Institutional/advisor mix: slightly less than half institutional; the rest via advisors - Described earlier in the introduction to the interview. DFA outperformance statistic: 75% of DFA funds beat category benchmarks over 15 years; 80% over 5 years - Booth cites Barron’s figures to illustrate strong relative performance. Outflows from U.S. equity mutual funds: about $700 billion - Booth uses this to illustrate investor capitulation since the 2007 market peak. Market return cited by CRSP: 9.3% per year - Booth references historical stock returns measured by the Center for Research in Security Prices. Real annuity yield: about 5% - Booth uses this as an example in retirement planning. Interest rates in 1981: about 15% - Used to compare the current rate environment with the firm’s founding era. Inflation in 1981: about 18% - Booth notes the negative real rate environment at the time. Baby boomers retiring: 40,000 to 60,000 per day - He cites this as part of the looming retirement challenge. Duration of advisor relationship: about 25-26 years - Booth says the advisor-channel business has grown over roughly this period. Poison pill policy: vote against directors - DFA’s governance stance on companies adopting poison pills and staggered boards.

Pivotal Quotes: "The key to investing is save a lot." — David Booth: Booth’s answer to advice for a recent college graduate about investing and careers. "Markets are where buyers and sellers come together. They both have to feel like they got a good deal or they don't trade." — David Booth: His explanation of why patient trading and market efficiency matter. "I think people need to invest in a way that they can kind of relax." — David Booth: His summary of the emotional side of successful long-term investing.

Implications: For listeners and the industry, the message is clear: long-term success comes from disciplined saving, broad diversification, low costs, and patience. DFA’s model shows that evidence-based investing can scale without abandoning philosophy.