Options Vega - Definition
Options Vega measures the sensitivity of a stock option's price to a change in implied volatility.


Options Vega Explained
Very simply put, Options Vega is an Options Greek that allows options traders to calculate the gain or loss in value with a 1% change in implied volatility. Options positions with Vega of 75 will rise by $75 when implied volatility rises by 1%. Options positions with Vega of -75 will rise by $75 when implied volatility falls by 1%. Both Call Options and Put Options produces positive Vega.