Bloomberg Surveillance · Tuesday, September 1, 2026
David Booth, founder and chairman of Dimensional Fund Advisors, emphasizes the importance of a long-term investment philosophy and paying attention to market movements without necessarily making frequent adjustments. He believes that for most people, sticking to a long-term plan is key, and personal circumstances are the primary drivers for making changes.
“We come from the viewpoint that you want to have a long-term investment philosophy and pay attention to what's going on and look at the movement the last, you know, few weeks really and say, well, how does that impact my long-term plan?”
“And generally, there aren't that many times that you have to make adjustments based on that, but you ought to pay attention.”
“Stick with your long-term plan and check your personal situation. Have things changed at home? Do you have a new job or win the lottery? Those are the kind of things that you want to focus on in terms of making changes.”