# Volatility

*Risk & Portfolio — Finicade finance glossary*

How much an asset's price swings, usually quoted as an annualised percentage. It's the market's measure of uncertainty and the key unknown in every option price — so much so that traders quote options in 'vol' rather than in euros.

**Related terms:** [Standard Deviation](https://finicade.com/glossary/standard-deviation), [Implied Volatility](https://finicade.com/glossary/implied-volatility), [Value at Risk (VaR)](https://finicade.com/glossary/value-at-risk), [Vega](https://finicade.com/glossary/vega)

**Taught in:** Risk Arena — Returns, Volatility & the Bell Curve

Source: https://finicade.com/glossary/volatility