Volatility Surface Construction

Model

Volatility surface construction involves creating a three-dimensional representation of implied volatility as a function of both option strike price and time to expiration. This surface captures the volatility smile and skew, which are empirical deviations from the constant volatility assumption of the Black-Scholes model. The construction process requires interpolating and extrapolating implied volatility data from market-traded options to create a complete surface for all strikes and maturities.