Abstract
Leverage has been shown to be procyclical and indicative of financial market risk. Here, we present a novel, inherently forward-looking way to estimate market leverage ratios based on derivative prices, option hedging, and the ‘operational’ riskiness measure by Foster and Hart (J Polit Econ 117(5):785–814, 2009). Furthermore, we report option-implied ‘optimal’ leverage levels inferred via the (Kelly, IRE Trans. Inf. Theory 2(3):185–189, 1956) criterion. The resulting measure of leverage exhibits strong procyclicality prior to the Global Financial Crisis of 2008. Finally, we find it to successfully predict large stock market downturns.
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Notes
- 1.
- 2.
Sircar and Papanicolaou (1998) document that dynamic option hedging strategies imply feedback effects between the price of the asset and the price of the derivative, which results in increased volatility.
- 3.
The data is available for purchase at http://www.stricknet.com/. More information on the SPX option contract specifications can be found at http://www.cboe.com/SPX.
- 4.
Our results are robust with respect to choosing a different VaR level.
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Acknowledgements
Leiss acknowledges support from the ETH Risk Center and through SNF grant The Anatomy of Systemic Financial Risk, Nax from the European Commission through the ERC Advanced Investigator Grant Momentum (Grant No. 324247).
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Leiss, M., Nax, H.H. (2017). Option-Implied Objective Measures of Market Risk with Leverage. In: Londoño, J., Garrido, J., Jeanblanc, M. (eds) Actuarial Sciences and Quantitative Finance. ICASQF 2016. Springer Proceedings in Mathematics & Statistics, vol 214. Springer, Cham. https://doi.org/10.1007/978-3-319-66536-8_7
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