Abstract

http://ssrn.com/abstract=1738965
 
 

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Implied Distribution as a Function of the Volatility Smile


Bertrand Tavin


EMLYON Business School

June 17, 2011

Bankers Markets and Investors, No. 119 (Jul./Aug. 2012), pp. 31-42 (Accepted, July 2011)

Abstract:     
The aim of this paper is to obtain the risk-neutral density of an underlying asset price as a function of its option implied volatility smile. We derive a known closed form non-parametric expression for the density and decompose it into a sum of lognormal and adjustment terms. By analyzing this decomposition we also derive two no-arbitrage conditions on the volatility smile. We then explain how to use the results. Our methodology is applied first to the pricing of a portfolio of digital options in a fully smile-consistent way. It is then applied to the fitting of a parametric distribution for log-return modelling, the Normal Inverse Gaussian.

Number of Pages in PDF File: 20

Keywords: Option pricing, Risk-neutral distribution, Implied volatility smile

JEL Classification: C14, C52, G13

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Date posted: January 13, 2011 ; Last revised: February 17, 2013

Suggested Citation

Tavin, Bertrand, Implied Distribution as a Function of the Volatility Smile (June 17, 2011). Bankers Markets and Investors, No. 119 (Jul./Aug. 2012), pp. 31-42 (Accepted, July 2011). Available at SSRN: http://ssrn.com/abstract=1738965 or http://dx.doi.org/10.2139/ssrn.1738965

Contact Information

Bertrand Tavin (Contact Author)
EMLYON Business School ( email )
23 Avenue Guy de Collongue
Ecully, 69132
France
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