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arXiv 2105.04073q-fin.MF
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粗糙波动率下的套期保值

Hedging under rough volatility

Masaaki Fukasawa, Blanka Horvath, Peter Tankov

摘要:

在这一章中,我们首先简要回顾了现有的方法来对冲粗糙波动率模型。接下来,我们提出了一个简单的,但一般的结果表明,在一个单一的因素粗糙随机波动率模型,任何选项都可以完美地对冲一个动态的投资组合包含的基础和一个其他资产,如方差互换。在最后一节中,我们报告了使用真实数据的回测实验的结果,其中VIX期权通过远期方差互换进行对冲。在这个实验中,使用一个粗略的波动率模型允许几乎完全消除偏见,并减少了27%的因素相比,传统的基于扩散的模型的整体对冲误差。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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