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Dynamics of foreign exchange implied volatility and implied correlation surfaces

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  • S. Beer
  • H. Fink

Abstract

The prices of currency options expressed in terms of their implied volatilities and the implied correlations between foreign exchange rates at a given point in time depend on option delta and time to maturity. Implied volatilities and implied correlations likewise may thus be represented as a surface. It is well known that these surfaces exhibit both skew/smile features and term structure effects and their shapes fluctuate substantially over time. Using implied volatilities on three currency pairs as well as historical implied correlation values between them, we study the nature of these fluctuations by applying a Karhunen-Loève decomposition that is a generalization of a principal component analysis. We demonstrate that the largest share in the dynamics of these surfaces' fluctuations may be explained by exactly the same three factors, providing evidence of strong interdependences between implied correlation and implied volatility of global currency pairs.

Suggested Citation

  • S. Beer & H. Fink, 2019. "Dynamics of foreign exchange implied volatility and implied correlation surfaces," Quantitative Finance, Taylor & Francis Journals, vol. 19(8), pages 1293-1320, August.
    • Handle: RePEc:taf:quantf:v:19:y:2019:i:8:p:1293-1320
    DOI: 10.1080/14697688.2019.1575517
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    Cited by:

    1. Thi Le & Ariful Hoque & Kamrul Hassan, 2021. "An Open Innovation Intraday Implied Volatility for Pricing Australian Dollar Options," JOItmC, MDPI, vol. 7(1), pages 1-14, January.
    2. Kunkler, Michael, 2022. "Implied betas for the Frankel–Wei regression framework," Economics Letters, Elsevier, vol. 218(C).
    3. Chih‐Chung Chien & Shikuan Chen & Ming‐Jen Chang, 2023. "A span of continuous trades and liquidity dynamics in foreign exchange markets," International Journal of Finance & Economics, John Wiley & Sons, Ltd., vol. 28(1), pages 144-168, January.

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