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Pricing of Idiosyncratic Equity and Variance Risks

Author

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  • Elise Gourier

    (Queen Mary University of London)

Abstract

This paper decomposes the risk premia of individual stocks into contributions from systematic and idiosyncratic risks. I introduce an affine jump-diffusion model, which accounts for both the factor structure of asset returns and that of the variance of idiosyncratic returns. The estimation is performed on a time series of returns and option prices from 2006 to 2012. I find that investors not only require compensation for the systematic movements in returns and variance, but also for non-hedgeable idiosyncratic risks. For the stocks of the Dow Jones, these risks account for an average of 50% and 80% of the equity and variance risk premia, respectively. I provide a categorisation of sectors based on the risk profile of their Exchange Traded Funds and highlight the high prices of idiosyncratic risks in the Energy, Financial and Consumer Discretionary sectors. Other sectors are found to be appealing alternatives for investors who are not willing to be exposed to non diversifiable risks.

Suggested Citation

  • Elise Gourier, 2016. "Pricing of Idiosyncratic Equity and Variance Risks," Working Papers 781, Queen Mary University of London, School of Economics and Finance.
    • Handle: RePEc:qmw:qmwecw:781
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    File URL: https://www.qmul.ac.uk/sef/media/econ/research/workingpapers/2016/items/wp781.pdf
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    Citations

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    Cited by:

    1. Paul Schneider & Christian Wagner & Josef Zechner, 2020. "Low‐Risk Anomalies?," Journal of Finance, American Finance Association, vol. 75(5), pages 2673-2718, October.
    2. Thaddeus Neururer & George Papadakis & Edward J. Riedl, 2020. "The Effect of Reporting Streaks on Ex Ante Uncertainty," Management Science, INFORMS, vol. 66(8), pages 3771-3787, August.
    3. Rombouts, Jeroen V.K. & Stentoft, Lars & Violante, Francesco, 2020. "Pricing individual stock options using both stock and market index information," Journal of Banking & Finance, Elsevier, vol. 111(C).
    4. Pollastri, Alessandro & Rodrigues, Paulo & Schlag, Christian & Seeger, Norman J., 2023. "A jumping index of jumping stocks? An MCMC analysis of continuous-time models for individual stocks," Journal of Empirical Finance, Elsevier, vol. 70(C), pages 322-341.
    5. Thaddeus Neururer, 2020. "Past managerial guidance and returns to variance trading around earnings announcements," Accounting and Finance, Accounting and Finance Association of Australia and New Zealand, vol. 60(3), pages 2995-3031, September.
    6. Xiao, Xiao & Zhou, Chen, 2018. "The decomposition of jump risks in individual stock returns," Journal of Empirical Finance, Elsevier, vol. 47(C), pages 207-228.

    More about this item

    Keywords

    Risk premia; Idiosyncratic risk;

    JEL classification:

    • C38 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Classification Methdos; Cluster Analysis; Principal Components; Factor Analysis
    • C51 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Construction and Estimation
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G13 - Financial Economics - - General Financial Markets - - - Contingent Pricing; Futures Pricing

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