Topic 4.5: The Role of Diversification

Is your portfolio suffering from "diworsification"? Discover the powerful case for a concentrated portfolio and why your best, most-researched ideas deserve significant capital.

century GIF by Feist

The Role of Diversification

Welcome back, dedicated learners! You've navigated the minefield of investment risk with us. You've learned to redefine risk itself (Topic 4.1), to spot the dangers lurking within a business (Topic 4.2) and its finances (Topic 4.3), and how to sidestep the treacherous allure of the value trap (Topic 4.4). You have done the hard work of learning how to analyze a single company.

Now, we arrive at a topic that seems simple on the surface but is actually one of the most fiercely debated battlegrounds in the entire investment world. It's a concept that divides amateurs from professionals and good investors from truly great ones. That concept is Diversification.

You’ve heard the old adage a thousand times: "Don't put all your eggs in one basket." It’s the sacred rule of personal finance, preached by every advisor and financial guru. It’s the very definition of playing it safe, a comfortable blanket of security against the unknown. But what if I told you that this sacred rule—this bedrock principle of modern finance—is often viewed as a recipe for mediocrity by the most successful investors who have ever lived? What if their path to generating astronomical returns involved not more diversification, but radically less? What if their secret was to do the exact opposite of what everyone tells you to do?

This is the heresy of focus investing. It’s the idea that true wealth isn’t built by spreading your bets thinly across dozens of "okay" ideas, but by concentrating your capital with conviction in a small number of your absolute best ideas. It's a path that promises far greater rewards but seems to carry far greater risk. So, which path is right for you? Should you follow the crowd and diversify into safety, or should you dare to follow the masters and concentrate for greatness? The answer to that question could define your entire investment future.

Let's find out.

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