# Vega

*Derivatives & Options — Finicade finance glossary*

How much an option's price moves when volatility changes by one percentage point. Long options are long vega — they gain when markets get more uncertain — which is why traders think of options as a way to trade volatility itself.

**Related terms:** [The Greeks](https://finicade.com/glossary/the-greeks), [Implied Volatility](https://finicade.com/glossary/implied-volatility), [Volatility](https://finicade.com/glossary/volatility)

**Taught in:** Hull Street — The Greeks, in Full

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