Super-fast and robust. Fits the whole US options universe on one box!
Based on modern Bayesian ideas, superior numerics, and 30 years of trading and research. Robustness is achieved by transferring information across strikes, expiries and time (filtering).
Uses unique set of flexible and intuitive curves (see Curves for details), allowing smooth and bias-free fits of all observed skews in the market.
Adjust volatility surfaces between fits using proper spot-vol dynamics.
The fitter can produce stable, arbitrage-free volatility surfaces even in the far wings, beyond the range of listed options, as required for the calibration of the various “SLVJ” models used for exotics and structured products.