Eight Rules Revisited #5: The rule i got half wrong

Eight Rules Revisited #5: The rule i got half wrong

July 15, 2026 · 23 min

About this episode

Stuart Wemyss revisits Rule 5, admitting a fundamental change in his perspective on portfolio diversification.

Pre-order Wealth by Design Here This one is different. Of all the rules in the series, Rule 5 is the first where Stuart admits he has genuinely changed his mind, not refined a nuance, but rethought the core idea. In Investopoly, he taught the textbook approach: blend negatively correlated assets to smooth out portfolio volatility, the classic diversification playbook most investors are told to follow. Eight years and a lot of evidence later, Wealth by Design makes a different case. The real r...

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