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Tail-Risk Protection Trading Strategies

Author

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  • Packham, Natalie
  • Papenbrock, Jochen
  • Schwendner, Peter
  • Woebbeking, Fabian

Abstract

Starting from well-known empirical stylised facts of nancial time series, we develop dynamic portfolio protection trading strategies based on econometric methods. As a criterion for riskiness we consider the evolution of the value-at-risk spread from a GARCH model with normal innovations relative to a GARCH model with generalised innovations. These generalised innovations may for example follow a Student t, a generalised hyperbolic (GH), an alpha-stable or a Generalised Pareto (GPD) distribution. Our results indicate that the GPD distribution provides the strongest signals for avoiding tail risks. This is not surprising as the GPD distribution arises as a limit of tail behaviour in extreme value theory and therefore is especially suited to deal with tail risks. Out-of-sample backtests on 11 years of DAX futures data, indicate that the dynamic tail-risk protection strategy eectively reduces the tail risk while outperforming traditional portfolio protection strategies. The results are further validated by calculating the statistical signicance of the results obtained using bootstrap methods. A number of robustness tests including application to other assets further underline the eectiveness of the strategy. Finally, by empirically testing for second order stochastic dominance, we nd that risk averse investors would be willing to pay a positive premium to move from a static buy-and-hold investment in the DAX future to the tail-risk protection strategy.

Suggested Citation

  • Packham, Natalie & Papenbrock, Jochen & Schwendner, Peter & Woebbeking, Fabian, 2018. "Tail-Risk Protection Trading Strategies," IRTG 1792 Discussion Papers 2018-038, Humboldt University of Berlin, International Research Training Group 1792 "High Dimensional Nonstationary Time Series".
  • Handle: RePEc:zbw:irtgdp:2018038
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    References listed on IDEAS

    as
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    More about this item

    Keywords

    tail-risk protection; portfolio protection; extreme events; tail distributions;
    All these keywords.

    JEL classification:

    • C15 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Statistical Simulation Methods: General
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G17 - Financial Economics - - General Financial Markets - - - Financial Forecasting and Simulation

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