The variance implied conditional correlation

Andres Algaba*, Kris Boudt, Steven Vanduffel

*Corresponding author for this work

Research output: Contribution to JournalArticleAcademicpeer-review

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We apply univariate GARCH models to construct a computationally simple filter for estimating the conditional correlation matrix of asset returns. The proposed Variance Implied Conditional Correlation (VICC) exploits the polarization result that links the correlation between two standardized variables with the variances of linear combinations thereof. In a Monte Carlo study, we show that the VICC yields accurate correlation estimates for common choices of the correlation dynamics. We also provide an empirical application to cross hedging that confirms the effectiveness of the VICC.

Original languageEnglish
Pages (from-to)200-222
Number of pages23
JournalEuropean Journal of Finance
Issue number2-3
Early online date12 May 2019
Publication statusPublished - 2020

Bibliographical note

Volume 26 (2020) Issue 2-3: Eighth International Conference on Mathematical and Statistical Methods for Actuarial Sciences and Finance, University Carlos III de Madrid, Madrid, 4-6th April 2018.


A preliminary version of this paper previously circulated as “The variance implied hedge ratio”. We thank Chris J. Adcock (the Editor) and two anonymous referees, as well as David Ardia, Filip Bekarovski, Samuel Borms, Nabil Bouamara, Prabesh Luitel, Pieter-Jan Pauwelyn, Stefan Straetmans, Marjan Wauters and participants at the workshop in honor of Peter Rousseeuw's 60th birthday in Leuven, the 2018 CFE conference in London, the 8th international MAF conference in Madrid, the 16th meeting of the BFRF in Brussels, and the 4th edition of EAJ Conference in Leuven for their valuable comments. This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors. The views expressed in this paper are the sole responsibility of the authors. Any remaining errors or shortcomings are those of the authors.

FundersFunder number


    • Conditional correlation
    • cross hedging
    • dynamic conditional correlation (DCC)
    • GARCH
    • hedge ratio
    • regularization


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