A Spectral Element Approximation to Price European Options with One Asset and Stochastic Volatility

Authors:
Wuming Zhu;David A. Kopriva
Affiliations:
NextEra Energy Power Marketing, LLC, Juno Beach, USA;Department of Mathematics, The Florida State University, Tallahassee, USA
Venue:
Journal of Scientific Computing
Year:
2010

Citing 7
Cited 1

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Abstract

We develop a Legendre quadrilateral spectral element approximation for the Black-Scholes equation to price European options with one underlying asset and stochastic volatility. A weak formulation of the equations imposes the boundary conditions naturally along the boundaries where the equation becomes singular, and in particular, we use an energy method to derive boundary conditions at outer boundaries for which the problem is well-posed on a finite domain. Using Heston's analytical solution as a benchmark, we show that the spectral element approximation along with the proposed boundary conditions gives exponential convergence in the solution and the Greeks to the level of time and boundary errors in a domain of financial interest.