SPX calibration of option approximations under rough Heston model

The volatility of stock return does not follow the classical Brownian motion, but instead it follows a form that is closely related to fractional Brownian motion. Taking advantage of this information, the rough version of classical Heston model also known as rough Heston model has been derived as th...

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Main Authors: Siow, Woon Jeng, Kilicman, Adem
Format: Article
Language:English
Published: MDPI AG 2021
Online Access:http://psasir.upm.edu.my/id/eprint/95138/
http://psasir.upm.edu.my/id/eprint/95138/1/SPX%20calibration%20of%20option%20approximations%20under%20rough%20Heston%20model.pdf
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author Siow, Woon Jeng
Kilicman, Adem
author_facet Siow, Woon Jeng
Kilicman, Adem
author_sort Siow, Woon Jeng
building UPM Institutional Repository
collection Online Access
description The volatility of stock return does not follow the classical Brownian motion, but instead it follows a form that is closely related to fractional Brownian motion. Taking advantage of this information, the rough version of classical Heston model also known as rough Heston model has been derived as the macroscopic level of microscopic Hawkes process where it acts as a high-frequency price process. Unlike the pricing of options under the classical Heston model, it is significantly harder to price options under rough Heston model due to the large computational cost needed. Previously, some studies have proposed a few approximation methods to speed up the option computation. In this study, we calibrate five different approximation methods for pricing options under rough Heston model to SPX options, namely a third-order Padé approximant, three variants of fourth-order Padé approximant, and an approximation formula made from decomposing the option price. The main purpose of this study is to fill in the gap on lack of numerical study on real market options. The numerical experiment includes calibration of the mentioned methods to SPX options before and after the Lehman Brothers collapse.
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spelling upm-951382023-01-04T08:54:58Z http://psasir.upm.edu.my/id/eprint/95138/ SPX calibration of option approximations under rough Heston model Siow, Woon Jeng Kilicman, Adem The volatility of stock return does not follow the classical Brownian motion, but instead it follows a form that is closely related to fractional Brownian motion. Taking advantage of this information, the rough version of classical Heston model also known as rough Heston model has been derived as the macroscopic level of microscopic Hawkes process where it acts as a high-frequency price process. Unlike the pricing of options under the classical Heston model, it is significantly harder to price options under rough Heston model due to the large computational cost needed. Previously, some studies have proposed a few approximation methods to speed up the option computation. In this study, we calibrate five different approximation methods for pricing options under rough Heston model to SPX options, namely a third-order Padé approximant, three variants of fourth-order Padé approximant, and an approximation formula made from decomposing the option price. The main purpose of this study is to fill in the gap on lack of numerical study on real market options. The numerical experiment includes calibration of the mentioned methods to SPX options before and after the Lehman Brothers collapse. MDPI AG 2021-10-21 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/95138/1/SPX%20calibration%20of%20option%20approximations%20under%20rough%20Heston%20model.pdf Siow, Woon Jeng and Kilicman, Adem (2021) SPX calibration of option approximations under rough Heston model. Mathematics, 9 (21). art. no. 2675. pp. 1-11. ISSN 2227-7390 https://www.mdpi.com/2227-7390/9/21/2675 10.3390/math9212675
spellingShingle Siow, Woon Jeng
Kilicman, Adem
SPX calibration of option approximations under rough Heston model
title SPX calibration of option approximations under rough Heston model
title_full SPX calibration of option approximations under rough Heston model
title_fullStr SPX calibration of option approximations under rough Heston model
title_full_unstemmed SPX calibration of option approximations under rough Heston model
title_short SPX calibration of option approximations under rough Heston model
title_sort spx calibration of option approximations under rough heston model
url http://psasir.upm.edu.my/id/eprint/95138/
http://psasir.upm.edu.my/id/eprint/95138/
http://psasir.upm.edu.my/id/eprint/95138/
http://psasir.upm.edu.my/id/eprint/95138/1/SPX%20calibration%20of%20option%20approximations%20under%20rough%20Heston%20model.pdf