Volatility is not risk
· beginner
Automated material · TradeAlmanac editorial deskDraft prepared by a language model from our stored data; not reviewed by an editor.
Volatility measures the dispersion of returns. Risk is the probability of losing money permanently. The two are related but not the same, and substituting one for the other costs more than most mistakes in markets.
What volatility counts
The standard deviation of returns over a period. It is symmetric: a ten percent rise and a ten percent fall contribute equally.
An uncomfortable consequence follows: an asset that rises in jumps is formally "risky". An asset sliding slowly and steadily downwards is formally "calm".
What it does not count
It does not know the company is on the brink of default. It does not know the security is about to be delisted. It does not know the whole business depends on one contract.
2,54
Leverage says more about risk than any series of returns.
How to use it anyway
As a measure of what would have to be lived through. Volatility answers "how bumpy is it", which is a useful answer — provided you did not mistake it for an answer to "can I lose everything".
Draft prepared by a language model from our stored data; not reviewed by an editor.
Model: claude-opus-5
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