Interview, Podcast
David Booth on being an index pioneer, working with Nobel laureates, & investing through uncertainty
- Firm Growth and Status: Dimensional Fund Advisors, founded in 1981 by David Booth in a Brooklyn Heights spare bedroom, now manages approximately $680 billion in assets.
- ETF Expansion: In just three years since launching its first ETF, Dimensional has become the largest active ETF issuer in the industry.
- Strategic Philosophy: The firm employs a science-based systematic approach characterized by engineering portfolios to capture long-term expected returns rather than short-term market movements.
- Academic Foundations: Dimensional's methodology integrates three seminal 20th-century finance theories: Eugene Fama's Efficient Market Hypothesis, Robert Merton's multi-factor theory (ICAPM), and the Black-Scholes-Merton option pricing model.
- Market View: The firm operates on the premise that financial markets are generally unpredictable, and therefore, the primary value driver is managing uncertainty rather than forecasting.
- Trading Execution: Dimensional distinguishes itself through active trading management focused on lowering transaction costs and providing liquidity, aiming to improve upon the mechanical execution constraints of passive index funds.
- Small Cap Strategy: The firm's initial product launched in 1981 was a small-cap fund, predating the formal documentation of the size factor by Fama and French by a decade, based on the conviction that equity portfolios should include small stocks alongside large ones.
- Performance Reality: Early live results shocked investors by showing the strategy outperforming small-cap benchmarks, validating the view that "flexibility has value" in trading execution.
- Board Composition: Dimensional's governance includes five Nobel laureates as directors or founding partners, including Merton Miller (1990), Myron Scholes (1997), Robert Merton (1997), Eugene Fama (2013), and Ken French, ensuring rigorous peer review of strategies.
- Adviser Network Launch: The firm began partnering with financial advisers in 1989 after a Sacramento adviser demonstrated the need for retail access to their funds, leading to the creation of an adviser network that requires training and utilizes omnibus accounts to maintain fund integrity.
- Educational Approach: Dimensional views the investment process as analogous to life, emphasizing "planning rather than predicting," controlling risk exposure, and utilizing compounding over the long term.
- 2008 Philanthropy: In 2008, Booth donated one of the largest gifts ever to a US business school, leading to the renaming of the University of Chicago Booth School of Business after him.
- Donation Impact: The gift was designated to fund "dream projects" and attract top faculty; according to the Dean, this transformed the finance department into the best in the world and ranked the school first in five of eight categories.
- Historical Preservation: Booth purchased the original 13 rules of basketball drafted by James Naismith in 1892 at a Sotheby's auction and donated them to the University of Kansas.
- Industry Outlook: Booth predicts future innovation in asset management will stem from reduced administrative and trading costs via technology, rather than revolutionary shifts in investment science, facilitating the democratization of finance.
- Core Lesson: The firm's most critical lesson is that investing is inherently uncertain and complex, requiring clients to judge decisions by the quality of the process rather than the outcome.
- Long-Term Optimism: Despite acknowledging market unpredictability and potential future failures, Booth expresses strong confidence in human ingenuity as the mechanism for economic recovery and long-term growth.