Statistical Hedging

29 Pages Posted: 8 Feb 2017 Last revised: 8 May 2019

Date Written: March 1, 2019

Abstract

This note presents an extension of the Markoviz-type "mean-variance" portfolio optimisation approach over one period to portfolios of derivatives. Most notably, we show that once "writing off" parts of the portfolio is allowed, we naturally arrive at using "cash-invariant monotone hulls" a'la Filipovic/Kupper to construct sensible convex measures of risk.

We recommend using "Quadratic CVaR" as the most natural convex risk replacement for mean-variance optimisation. We also explain why classic Greek-based approaches are inferior to our approach for managing portfolios of derivatives.

This note summarises results presented at Global Derivatives 2013 and 2014 and provides a more generalised view on the problem at hand. This work contains little original contributions; its aim to motivate the use of convex risk measures and their construction via cash-invariant monotone hulls from a practitioner's point of view.

Keywords: Portfolio Optimization for Derivatives, Incomplete Market, Convex Risk Measure, Quadratic CVaR

Suggested Citation

Buehler, Hans, Statistical Hedging (March 1, 2019). Available at SSRN: https://ssrn.com/abstract=2913250 or http://dx.doi.org/10.2139/ssrn.2913250

Hans Buehler (Contact Author)

XTX Markets ( email )

14-18 Handyside Street
London, Greater London N1C 4DN
United Kingdom

HOME PAGE: http://xtxmarkets.com

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