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arXiv · 2105.04073

Hedging under rough volatility

Masaaki Fukasawa·Blanka Horvath·Peter Tankov
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Abstract

In this chapter we first briefly review the existing approaches to hedging in rough volatility models. Next, we present a simple but general result which shows that in a one-factor rough stochastic volatility model, any option may be perfectly hedged with a dynamic portfolio containing the underlying and one other asset such as a variance swap. In the final section we report the results of a back-test experiment using real data, where VIX options are hedged with a forward variance swap. In this experiment, using a rough volatility model allows to almost completely remove the bias and reduce the overall hedging error by a factor of 27% compared to traditional diffusion-based models.

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Masaaki Fukasawa, Blanka Horvath, Peter Tankov. 2021-05-10. Hedging under rough volatility. https://arxiv.org/abs/2105.04073

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