Moving beyond Volatility Index (VIX): HARnessing the term structure of implied volatility

Adam Clements, Yin Liao, Yusui Tang

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

This paper considers how information from the implied volatility (IV) term structure can be harnessed to improve stock return volatility forecasting within the state-of-the-art HAR model. Factors are extracted from the IV term structure and included as exogenous variables in the HAR framework. We found that including slope and curvature factors leads to significant forecast improvements over the HAR benchmark at a range of forecast horizons, compared with the standard HAR model and HAR model with VIX as IV information set.
Original languageEnglish
Pages (from-to)86-99
Number of pages14
JournalJournal of Forecasting
Volume41
Issue number1
Early online date28 May 2021
DOIs
Publication statusPublished - Jan 2022

Keywords

  • HAR model
  • VIX
  • curvature
  • implied volatility term structure
  • realized volatility
  • slope

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