David Booth discusses investing and staying calm during market volatility
David Booth, who founded Dimensional Fund Advisors in 1981, discussed his investment philosophy and new book, “Stay Calm,” in an interview with David Rubenstein. The conversation covered diversification, exposure to smaller companies and applying a calm approach to periods of market volatility and uncertainty in life.
David Booth discussed investing, Dimensional Fund Advisors and his new book, “Stay Calm,” in an interview with David Rubenstein for Bloomberg’s “The David Rubenstein Show: Peer to Peer Conversations.”
Booth founded Dimensional Fund Advisors in 1981 from a Brooklyn brownstone. The firm began with an approach that included exposure to smaller companies as part of a diversified portfolio.
Dimensional now manages more than $1 trillion, according to Bloomberg. The interview was recorded August 10 in New York.
THE QUESTIONS THIS EVENT LEAVES BEHIND
What conditions would challenge the idea that investors should remain calm during market volatility?
How might access to smaller companies affect risk within a diversified portfolio?
What incentives shape the way investment philosophies are presented in books and interviews?
How could applying an investment approach to life differ from applying it to financial markets?
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GLOBAL CURIOSITY MAP · AUGUST 2026