 A Mixed Frequency Stochastic Volatility Model for Intraday Stock Market Returns*Jeremias Bekierman and Bastian Gribisch Journal of Financial Econometrics, 2021, vol. 19, issue 3, 496-530 Abstract: We propose a mixed frequency stochastic volatility model for intraday returns. To account for long-memory type of dependence patterns we introduce a long-run component that changes daily and a short-run component that captures the remaining intraday volatility dynamics. We analyze the model’s stochastic properties and extend it to capture leverage effects and overnight return information. The model is estimated by simulated maximum likelihood using efficient importance sampling. We apply the model to 30-min returns of 12 stocks. The results show that the model successfully accounts for the complex dynamic and distributional properties of asset returns both on the intraday and the daily frequency. Keywords: intraday stochastic volatility; mixed frequency; overnight returns; leverage; efficient importance sampling (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:oup:jfinec:v:19:y:2021:i:3:p:496-530. Ordering information: This journal article can be ordered from Access Statistics for this article Journal of Financial Econometrics is currently edited by Allan Timmermann and Fabio Trojani More articles in Journal of Financial Econometrics from Oxford University Press Oxford University Press, Great Clarendon Street, Oxford OX2 6DP, UK. Contact information at EDIRC. |
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