Date of Award
Spring 5-2018
Degree Name
Master of Arts (AM/MA)
Degree Type
Thesis
Abstract
The Black-Scholes model has been widely used to find the prices of option, while several generalizations have been made due to its limitation. In this thesis, we consider one of the generalizations---the exponential Levy model with a mixture of CGMY process and Brownian motion. We state the main results of the first-, second- and third-order expansions for close-to-the-money call option prices under this model. Using importance sampling based on Monte Carlo method, a dataset of call option prices can be simulated. Comparing the simulated true prices with the three different order approximations, we find that the higher-order approximation is more accurate than the lower-order in most cases, which can be used for calibrating the parameters in the model. In order to verify these results, we use call option prices obtained from the Standard & Poor's 500 index options. The third-order approximation of this real dataset is not as accurate as before.
Language
English (en)
Chair and Committee
Jose E. Figueroa-Lopez
Committee Members
Todd Kuffner, Jimin Ding
Recommended Citation
Wang, Weiliang, "Statistical Analysis of Short-time Option Prices Based on a Levy Model" (2018). Arts & Sciences Electronic Theses and Dissertations. 1503.
https://openscholarship.wustl.edu/art_sci_etds/1503
Comments
Permanent URL: https://doi.org/10.7936/K74Q7TF4