The volatility value backed out of an option's market price using an option pricing model.
The volatility value backed out of an option's market price using an option pricing model.
Implied Volatility reflects market consensus regarding future price volatility over an option's remaining life. It is calculated by back-solving the Black-Scholes equation using live option market quotes.
Forward-looking expectation rather than historical calculation.
Varies across strike prices, giving rise to the Volatility Smile and Skew.
Used to construct the VIX index.