Yet Another Option Calculator is a powerful option calculator. It supports multiple models to calculate prices and implied volatility for both European and American style options.It supports the following models;Black-ScholesBarone-Adesi/WhaleyBjerksund/StenslandFinite differencesBinomial Cox-Ross-RubinsteinBinomial Jarrow-RuddBinomial TrigeorgisBinomial TianBinomial Leisen-ReimerBinomial JoshiFeatures:Support both American and European exerciseSupport calculating implied volatilityAllow to set both evaluation date and expiryResult could be shown in one screen