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Lesson 3 of 5 · 5 min read

Diversification

Don't put all your eggs in one basket.

What is diversification?

By spreading your money across different companies, sectors and regions, you limit the impact if one position disappoints. If one company goes bankrupt, you lose a small piece — not everything.

Diversification & risk
15.0%
Portfolio volatility
Number of assets8
Correlation0.50

More assets, and above all less correlated ones, lower risk without costing you return. Assets that move together barely help.

The classic example

Suppose you put everything in one stock and that company collapses (think Wirecard, or FTX in crypto). Then you lose everything. With 500 companies in an ETF, one bankruptcy is barely felt. Diversification is your insurance against bad luck.

together = calmer
Diversification: two fluctuating investments together give a much calmer line than each on its own.
Market History2020

Wirecard: from DAX darling to zero in days

When it turned out that €1.9 billion was missing from the balance sheet, the stock evaporated. Anyone who had everything in this 'safe' tech company lost almost everything — in an ETF it was a pinprick.

Spread on 3 levels

1) Companies (not 1 stock). 2) Sectors (not only tech). 3) Regions (not only the U.S.). A global ETF does all three automatically for you.

Stocks 50%Bonds 25%Crypto 10%Cash 15%
Spreading across stocks, bonds, crypto and cash lowers overall risk.

ETFs: diversification in 1 click

An ETF often bundles hundreds to thousands of stocks. With 1 purchase you buy a whole basket. Ideal for beginners — instant diversification without having to research 500 companies.

Top 124%Top 215%Top 39%Top 47%Other45%
An index is weighted. Its biggest holdings drive most of the move.

Too much diversification also exists

Following a hundred individual stocks is impossible and adds nothing extra. A few broad ETFs already give you global diversification without the stress. More than that is 'diworsification'.

together = calmer
Diversification: two fluctuating investments together give a much calmer line than each on its own.

Remember this

  • Diversification lowers the risk of one bad position without sacrificing your return.
  • Spread on 3 levels: companies, sectors and regions.
  • One broad world ETF arranges all that diversification in a single purchase.
  • Too many individual positions ('diworsification') adds nothing, only stress.

There is a quiz for this lesson

3 questions that check whether it stuck. They live in the app, because a quiz nobody grades teaches nothing.

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Diversification