The Art & Science Behind Building Diversified Portfolios [Chills 260]

The Art & Science Behind Building Diversified Portfolios [Chills 260]

April 1, 2026 · 49 min · Episode 260

About this episode

Wei Dai discusses the importance of disciplined, research-driven investing in unpredictable markets.

Markets are volatile. Headlines are everywhere. Oil prices are rising, geopolitics is heating up, and investors everywhere are trying to predict what happens next. But what if trying to predict the market is the biggest mistake investors make? How should you actually invest in a world that feels unpredictable? Sit with Wei Dai, Global Head of Research, Dimensional Fund Advisors, to break down the science behind investing and why long-term strategies often beat trying to outguess the market. Wei Dai leads a global research team studying how markets behave and how academic insights translate into real investment portfolios. In this conversation, she explains why disciplined, research-driven investing may matter more than reacting to headlines. We discuss: Why market prices already contain more information than most investors realise The difference between active investing, passive investing, and systematic investing The real drivers of long-term stock returns: size, value, and profitability How professionals avoid value traps and falling knives Whether geopolitics and oil prices should affect your portfolio The truth about global diversification (and why many investors aren’t truly…

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