主管:中国科学院
主办:中国优选法统筹法与经济数学研究会
   中国科学院科技战略咨询研究院

中国管理科学 ›› 2026, Vol. 34 ›› Issue (4): 22-33.doi: 10.16381/j.cnki.issn1003-207x.2022.1305cstr: 32146.14.j.cnki.issn1003-207x.2022.1305

• • 上一篇    下一篇

基于成分Realized EGARCH模型的期权定价研究

吴鑫育1(), 尹学宝1, 谢海滨2, 马超群3   

  1. 1.安徽财经大学金融学院,安徽 蚌埠 233030
    2.对外经济贸易大学金融学院,北京 100029
    3.湖南大学工商管理学院,湖南 长沙 410082
  • 收稿日期:2022-06-16 修回日期:2024-07-19 出版日期:2026-04-25 发布日期:2026-03-27
  • 通讯作者: 吴鑫育 E-mail:xywu@aufe.edu.cn
  • 基金资助:
    国家自然科学基金资助项目(71971001);安徽省自然科学基金资助项目(2208085Y21);安徽省高校杰出青年科研项目(2022AH020047);安徽省高校学科(专业)拔尖人才学术资助项目(gxbjZD2022019);安徽省高校优秀科研创新团队(2022AH010045);安徽高校协同创新项目(GXXT-2021-078);安徽省研究生学术创新项目(2022xscx083)

Option Pricing with Component Realized EGARCH Model

Xinyu Wu1(), Xuebao Yin1, Haibin Xie2, Chaoqun Ma3   

  1. 1.School of Finance,Anhui University of Finance and Economics,Bengbu 233030,China
    2.School of Banking and Finance,University of International Business and Economics,Beijing 100029,China
    3.Business School,Hunan University,Changsha 410082,China
  • Received:2022-06-16 Revised:2024-07-19 Online:2026-04-25 Published:2026-03-27
  • Contact: Xinyu Wu E-mail:xywu@aufe.edu.cn

摘要:

本文对Realized EGARCH(R-EGARCH)模型进行扩展,引入成分波动率结构,构建成分R-EGARCH(CR-EGARCH)模型对期权定价。构建的CR-EGARCH模型能够更充分地刻画波动率动态性,如波动率长记忆性、长期杠杆效应和短期杠杆效应。同时,该模型充分利用了已实现测度包含的日内信息,能够改进对资产收益率分布的拟合和对波动率估计的精确性。基于具有双重冲击(收益率和波动率冲击)的Radon-Nikodym导数,获得风险中性收益率动态性,利用蒙特卡罗模拟方法计算期权价格。进一步,采用标的资产及其期权价格数据,建立了序贯极大似然方法对定价模型参数进行估计。基于上证50ETF期权数据的实证研究表明:CR-EGARCH模型比R-EGARCH模型在基于隐含波动率的均方根误差(IVRMSE)方面降低了13.52%;R-EGARCH模型比成分EGARCH(C-EGARCH)模型、EGARCH模型和Black-Scholes(B-S)模型的IVRMSE分别降低了10.95%、29.48%和25.02%。研究结果反映考虑成分波动率结构以及已实现测度(极差)包含的日内极值信息可以有效提高期权定价的精确性。总的来说,CR-EGARCH模型具有最好的期权定价表现,且研究结论具有稳健性。

关键词: 期权定价, Realized EGARCH模型, 波动率成分, 杠杆效应, 极差

Abstract:

Options are a type of financial derivative, which are mainly to be used as a tool for building investment strategies and managing financial risk. Options play an important role in developing the financial system, and generating economic growth. One of the important issues for trading options is to address the question on how options can be valued correctly. It aims to develop a reasonable model for pricing options.Classical option pricing model, such as the Black-Scholes (B-S) model, relies on the assumption that the underlying asset returns are normally distributed with constant volatility. However, the assumptions are inconsistent with empirical findings, resulting in option pricing biases and ``volatility smirk". It is well recognized that asset return distribution exhibits characteristics such as negative skewness and excess kurtosis. Moreover, asset returns exhibit volatility clustering, asymmetric volatility and long memory volatility behaviors.To overcome the drawbacks of the conventional option pricing approach, the GARCH option pricing models have been developed. However, the GARCH option pricing model fails to account for the intraday information as well as the complex volatility dynamics (such as asymmetric volatility and long memory volatility) for pricing options. In light of this, the Component Realized EGARCH (CR-EGARCH) model is proposed, which extends the Realized EGARCH (R-EGARCH) model through the incorporation of component volatility structure, to price options. The proposed CR-EGARCH model could more adequately capture the volatility dynamics, such as the long-memory volatility and the long-term and short-term leverage effects. Meanwhile, the model exploits the intraday information from realized measure, which is expected to improve return fitting and volatility estimates. The risk-neutral return dynamic is derived relying on the Radon-Nikodym derivative with dual shocks (return and volatility shocks). Using Monte Carlo simulation method, the prices for European options are computed. A sequential maximum likelihood estimation method is developed to estimate the parameters of the pricing model using data on the underlying asset and option prices.An empirical analysis based on Shanghai Stock Exchange (SSE) 50ETF options shows that in terms of implied volatility root mean squared error (IVRMSE) the CR-EGARCH model offers a 13.52% improvement over the standard R-EGARCH model. The R-EGARCH model offers 10.95%, 29.48% and 25.02% improvements over the Component EGARCH (C-EGARCH) model, the EGARCH model and the B-S model, respectively. The results provide strong support for incorporating the component volatility structure as well as the intraday extreme-value information from realized measure (range) to improve option pricing performance, with the proposed CR-EGARCH model offers the best option pricing performance. Finally, it is confirmed that the superior pricing performance of the CR-EGARCH model is robust to different evaluation criteria, different sample period, out-of-sample analysis, different realized measure and different option type.

Key words: option pricing, Realized EGARCH model, volatility components, leverage effects, range

中图分类号: