An analytic pricing formula for timer options under constant elasticity of variance with stochastic volatility

Timer options, which were first introduced by Société Générale Corporate and Investment Banking in 2007, are financial securities whose payoffs and exercise are determined by a random time associated with the accumulated realized variance of the underlying asset, unlike vanilla options exercised at...

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Main Authors: Sun-Yong Choi, Donghyun Kim, Ji-Hun Yoon
Format: Article
Language:English
Published: AIMS Press 2024-01-01
Series:AIMS Mathematics
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/math.2024121?viewType=HTML
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author Sun-Yong Choi
Donghyun Kim
Ji-Hun Yoon
author_facet Sun-Yong Choi
Donghyun Kim
Ji-Hun Yoon
author_sort Sun-Yong Choi
collection DOAJ
description Timer options, which were first introduced by Société Générale Corporate and Investment Banking in 2007, are financial securities whose payoffs and exercise are determined by a random time associated with the accumulated realized variance of the underlying asset, unlike vanilla options exercised at the prescribed maturity date. In this paper, taking account of the correlation between the underlying asset price and volatility, we investigate the pricing of timer options under the constant elasticity of variance (CEV) model, proposed by Cox and Ross [10], taking advantage of the approach of asymptotic analysis. Additionally, we validate the pricing precision of the approximate formula for timer options using the Monte Carlo method. We conduct numerical experiments based on our corrected prices and analyze price sensitivities concerning various model parameters, with a focus on the value of elasticity.
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spelling doaj.art-ceaba4f0ea38406697b599c869f7fd542024-01-17T01:11:20ZengAIMS PressAIMS Mathematics2473-69882024-01-01912454247210.3934/math.2024121An analytic pricing formula for timer options under constant elasticity of variance with stochastic volatilitySun-Yong Choi0Donghyun Kim1Ji-Hun Yoon21. Department of Financial Mathematics, Gachon University, Gyeoggi 13120, Republic of Korea2. Department of Mathematics, Pusan National University, Busan 46241, Republic of Korea2. Department of Mathematics, Pusan National University, Busan 46241, Republic of Korea 3. Institute of Mathematical Science, Pusan National University, Busan 46241, Republic of KoreaTimer options, which were first introduced by Société Générale Corporate and Investment Banking in 2007, are financial securities whose payoffs and exercise are determined by a random time associated with the accumulated realized variance of the underlying asset, unlike vanilla options exercised at the prescribed maturity date. In this paper, taking account of the correlation between the underlying asset price and volatility, we investigate the pricing of timer options under the constant elasticity of variance (CEV) model, proposed by Cox and Ross [10], taking advantage of the approach of asymptotic analysis. Additionally, we validate the pricing precision of the approximate formula for timer options using the Monte Carlo method. We conduct numerical experiments based on our corrected prices and analyze price sensitivities concerning various model parameters, with a focus on the value of elasticity.https://www.aimspress.com/article/doi/10.3934/math.2024121?viewType=HTMLtimer optionsstochastic volatilityconstant elasticity of varianceasymptotic analysismonte-carlo simulation
spellingShingle Sun-Yong Choi
Donghyun Kim
Ji-Hun Yoon
An analytic pricing formula for timer options under constant elasticity of variance with stochastic volatility
AIMS Mathematics
timer options
stochastic volatility
constant elasticity of variance
asymptotic analysis
monte-carlo simulation
title An analytic pricing formula for timer options under constant elasticity of variance with stochastic volatility
title_full An analytic pricing formula for timer options under constant elasticity of variance with stochastic volatility
title_fullStr An analytic pricing formula for timer options under constant elasticity of variance with stochastic volatility
title_full_unstemmed An analytic pricing formula for timer options under constant elasticity of variance with stochastic volatility
title_short An analytic pricing formula for timer options under constant elasticity of variance with stochastic volatility
title_sort analytic pricing formula for timer options under constant elasticity of variance with stochastic volatility
topic timer options
stochastic volatility
constant elasticity of variance
asymptotic analysis
monte-carlo simulation
url https://www.aimspress.com/article/doi/10.3934/math.2024121?viewType=HTML
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