Cover Image

Asymptotic Expansions of the Lognormal Implied Volatility : A Model Free Approach

We invert the Black-Scholes formula. We consider the cases low strike, large strike, short maturity and large maturity. We give explicitly the ?rst 5 terms of the expansions. A method to compute all the terms by induction is also given. At the money, we have a closed form formula for implied lognormal volatility in terms of a power series in call price.
Year of publication:
2011-12
Authors: Grunspan, Cyril
Institutions: arXiv.org
Extent:
application/pdf
Series:
Type of publication: Book / Working Paper
Language: English
Source:
Persistent link: https://www.econbiz.de/10009369158
Similar items by person