Solution of a Model for Pricing Options with Hedging Strategy Through Nonlinear Filters

A methodology is presented to estimate the solution states for a non-linear price problem, a model for pricing options with a hedging strategy in the Föllmer-Schweizer sense is defined. The problem is to determine the price of a contingent claim, that is a contract, that pays of an amount at time t in a incomplete market, that is not possible to replicate a payoff by a controlled portfolio of the basic securities. Two algorithms are presented to estimate the solution of the presented problem, the nested sequential Monte Carlo (NSMC) and space-time particle filter (STPF) are defined from sequences of probability distributions. The methodology is validated to use real data from option Asian, the states in real-time are estimated, that is proposed on the basis of the price model. The efficiency of the forecasts of the model is compared. Finally, one goodness-of-fit measure to validate the performance of the model are used, obtaining insignificant estimation error.