Author : Roger Lord
Publisher :
ISBN 13 :
Total Pages : 23 pages
Book Rating : 4.:/5 (129 download)
Book Synopsis A Fast and Accurate FFT-Based Method for Pricing Early-Exercise Options Under Levy Processes by : Roger Lord
Download or read book A Fast and Accurate FFT-Based Method for Pricing Early-Exercise Options Under Levy Processes written by Roger Lord and published by . This book was released on 2007 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: A fast and accurate method for pricing early exercise and certain exotic options in computational finance is presented. The method is based on a quadrature technique and relies heavily on Fourier transformations. The main idea is to reformulate the well-known risk-neutral valuation formula by recognising that it is a convolution. The resulting convolution is dealt with numerically by using the Fast Fourier Transform (FFT). This novel pricing method, which we dub the Convolution method, CONV for short, is applicable to a wide variety of payoffs and only requires the knowledge of the characteristic function of the model. As such the method is applicable within exponential Leacute;vy models, including the exponentially affine jump-diffusion models. For an M-times exercisable Bermudan option, the overall complexity is O(MN log(N)) with N grid points used to discretise the price of the underlying asset. It is shown how to price American options efficiently by applying Richardson extrapolation to the prices of Bermudan options.