Pricing European and American options under Heston's stochastic volatility model with accelerated explicit finite differencing methods

Conall O'Sullivan and Stephen O'Sullivan

Centre for Financial Markets Working Papers from Research Repository, University College Dublin

Abstract: We present an acceleration technique, effective for explicit finite difference schemes describing diffusive processes with nearly symmetric operators, called Super-Time- Stepping (STS). The technique is applied to the two-factor problem of option pricing under stochastic volatility. It is shown to significantly reduce the severity of the stability constraint known as the Courant-Friedrichs-Lewy condition whilst retaining the simplicity of the chosen underlying explicit method. For European and American put options under Heston’s stochastic volatility model we demonstrate degrees of acceleration over standard explicit methods sufficient to achieve comparable, or superior, efficiencies to a benchmark implicit scheme. We conclude that STS is a powerful tool for the numerical pricing of options and propose them as the method-of-choice for exotic financial instruments in two and multi-factor models.

Keywords: Acceleration principle (Economics); Options (Finance)--Mathematical models; Financial instruments--Econometric models (search for similar items in EconPapers)
Date: 2010-06
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Persistent link: https://EconPapers.repec.org/RePEc:rru:cfmwps:10197/2564

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