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Scenario guide / GBM equity curve simulator
Long-only equities over 10 years
A moderate-return, moderate-volatility path that helps people see why a calm-looking median still hides a wide terminal range.
Median terminal
2.60x
10th percentile
1.25x
90th percentile
5.10x
Loss probability
4%
Median max drawdown
34%
Tail max drawdown
49%
Why this scenario matters
This is the scenario most people think they understand. It is useful precisely because the dispersion is less obvious than in crypto, which makes the path-risk lesson easier to miss.
- A reasonable median path can still come with a large drawdown envelope.
- Ten years does not eliminate path risk when volatility compounds over many steps.
- The lower tail matters even when the expected return feels comfortable.