The Investment Masterclass · Lesson 5 of 19
Lesson 5 of the Investment Masterclass: what squirrels understand about diversification that many investors forget, and the trade-off that buys you sleep.
Last verified: July 2026
Key takeaways
- The future is uncertain, but one thing is sure: something will happen, at some point. Your strategy has to be ready for it.
- Diversification is the squirrel mindset: spread the nuts so that no single event can wipe you out.
- The trade-off is explicit: spreading means a small loss in expected returns, in exchange for a much lower risk of losing big.
- Diversification is personal. There is no right proportion; there is the balance that lets you sleep and keeps you invested.
If recent years have taught us anything, it is this: the future is uncertain. One day the world is fine and markets are booming, the next brings a shock nobody saw coming. You cannot know exactly what the future will bring, but you can be sure that something will happen, at some point.
So either you have the stomach to bear the ups and downs, or your strategy needs to be built for whatever the world throws at it. If drops in your portfolio make you nervous, Lesson 4 told you to choose a strategy that fits you. This lesson gives you the first tool for it: the squirrel mindset.
What is the squirrel mindset?
Squirrels gather nuts all year and bury them for winter. Where do they bury them? Everywhere. A few in the old tree, a few in the ground, a couple in the abandoned bird’s nest. Squirrels intuitively understand diversification: putting the entire stash in one place is risky. Spreading the nuts raises the chance that some get stolen or lost, and it dramatically lowers the chance of starving.
Squirrels do not have finance degrees. They care about staying alive. The ancestors who put all their nuts in one place got wiped out, at some point, by an unexpected event. Evolution settled the argument: avoid the lose-everything risks.
What does diversification actually cost?
The trade-off is honest and explicit:
| All nuts in one place | Nuts spread everywhere | |
|---|---|---|
| Best case | Bigger, if the one bet pays | Slightly smaller expected return |
| Worst case | Losing everything | Losing a few nuts |
| Sleep | Every storm is a crisis | The portfolio weathers storms |
| Evolution’s verdict | Wiped out, eventually | Still here |
Spreading the nuts means accepting a small loss in expected returns in exchange for a much lower risk of losing big. If you cannot bear taking large losses, simply do not put all your eggs in one basket. Diversify.
Why is diversification personal?
Two things make the squirrel mindset powerful. First, diversification is personal: there is no universally right proportion of nuts to move elsewhere. The balance is the one you must find for yourself. Second, if too much risk keeps you awake at night, a diversified portfolio is a form of insurance: no matter what happens next, you will have something left.
For many of us, wealth means knowing that we will have enough. Not worrying about money. Knowing it is there when we need it. With a diversified portfolio, whatever the markets do, you weather the storms and build wealth consistently. The full curriculum lives on the masterclass hub.
Frequently asked questions
What is diversification in investing?
Spreading your money across different assets so that no single event can wipe you out. It trades a small amount of expected return for a much lower risk of losing everything.
What is the squirrel mindset?
The intuition squirrels apply to nuts: never keep the whole stash in one place. Applied to money, it means diversifying so that unexpected events cost you a few nuts, not the winter.
Does diversification reduce returns?
Slightly, in expectation: concentration wins when the one bet pays off. But diversification dramatically reduces the risk of catastrophic loss, and the investor who survives every storm compounds longer than the one who does not.
How much diversification is right?
There is no universal answer. The right balance is personal: enough spread that a bad event cannot ruin you, and that you can sleep and stay invested through downturns.
Next lesson: the two most common, most expensive beginner mistakes, and the simple trick that avoids both. And if you want a professional to build the spread with you, Alpian’s wealth advisory starts at CHF 2’000 at a FINMA-licensed Swiss bank.
This is Lesson 5 of 19
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