The Volatility Trap

1

The Power of Compounding

See how consistent annual contributions grow exponentially over time. No volatility here — just pure compounding magic.

Annual Contribution (€): 5,000

Annual Return (%): 8

Years: 30

Final Value

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Total Contributed

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Pure Gains

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-- times your contributions

2

Warning: Don't be fooled by averages. A high expected return means nothing if volatility destroys your portfolio. Watch how the same average return with different volatility leads to wildly different outcomes.

Initial Investment (€): 10,000

Annual Contribution (€): 0

Expected Return (%): 10

Volatility (%): 40

Years: 20

Simulations: 1,000

Paths on Chart: 50

Random sample of paths for visualization only.

Total Contributed

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Theor. Final (No Vol)

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Average Outcome

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Worst Case

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Prob. of Loss

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Range of Outcomes at Maturity (Future Wealth)

Worst Case -- Extreme Downside

Perc. 10% (Bad) -- Unlucky Scenario

Median Expectation -- 50/50 Probability

Perc. 90% (Good) -- Lucky Scenario

Best Case -- Extreme Upside

Each gray line is a possible future. The orange line is the average. Notice how many paths end below your starting point!

3

The Diversification Solution

The fix: Combine two volatile assets into a portfolio. Watch how the 50/50 mix reduces risk without sacrificing expected returns. This is the free lunch of investing!

Asset A Return (%): 12

Asset A Vol (%): 35

Asset B Return (%): 8

Asset B Vol (%): 20

Years: 20

Asset A (Mean)

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-- prob. of loss

Asset B (Mean)

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-- prob. of loss

50/50 Portfolio (Mean)

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-- prob. of loss

Risk Reduction

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The green portfolio (50/50 mix) has less extreme outcomes than either individual asset.

🎓 Key Takeaways

1. Compounding is powerful — but only if you stay invested long enough.
2. Volatility is the silent killer — high expected returns mean nothing if you can lose 80% of your money.
3. Diversification is free insurance — combining uncorrelated assets reduces risk without sacrificing returns.