A Fitted Finite Volume Method for the Valuation of Options on Assets with Stochastic Volatilities

  • Authors:
  • C.-S. Huang;C.-H. Hung;S. Wang

  • Affiliations:
  • Department of Applied Mathematics, National Sun Yat-sen University, 811, Kaohsiung, Taiwan;Department of Applied Mathematics, National Sun Yat-sen University, 811, Kaohsiung, Taiwan;School of Mathematics and Statistics, The University of Western Australia, 6009, Crawley, Australia

  • Venue:
  • Computing
  • Year:
  • 2006

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Abstract

In this paper, we present a finite volume method for a two-dimensional Black-Scholes equation with stochastic volatility governing European option pricing. In this work, we first formulate the Black-Scholes equation with a tensor (or matrix) diffusion coefficient into a conservative form. We then present a finite volume method for the resulting equation, based on a fitting technique proposed for a one-dimensional Black-Scholes equation. We show that the method is monotone by proving that the system matrix of the discretized equation is an M-matrix. Numerical experiments, performed to demonstrate the usefulness of the method, will be presented.