Momentos estocásticos de orden superior y la estimación de la volatilidad implícita : Aplicación de la expación de Edgeworth en el modelo Black-Scholes.

Abstract

In this document the Edgeworth expansion is used in the Black-Scholes model for estimating the implicit volatility and the impact of the higher order stochastic moments on the option price, over Grupo Financiero Galicia (GGAL) stock options contracts trading in the Buenos Aires Stocks Exchange (Argentina). First, the underlying probability distribution of returns is analysed; then the model is subject to iteration to obtain implicit values for volatility, skewnness and kurtosis. The main conclusions are the flat shape of the volatility curve of the model, and the significant weight of the skewnnes and kurtosisof the «in the money, out of the money» prices