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arXiv 2107.01611q-fin.CPq-fin.MFq-fin.PRq-fin.RM
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二次粗糙Heston模型的深度校正

Deep calibration of the quadratic rough Heston model

Mathieu Rosenbaum, Jianfei Zhang

摘要:

二次粗糙赫斯顿模型提供了一种自然的方式来编码Zumbach效应在粗糙波动范式。我们应用多因素近似并使用深度学习方法来为该模型构建一个有效的校准程序。我们发现,该模型能够很好地再现SPX和VIX隐含波动率。我们通常会在买卖价差内获得VIX期权价格,并与SPX在货币偏差上非常吻合。此外,我们还解释了如何使用训练好的神经网络进行套期保值与套期保值量的瞬时计算。

英文摘要:

The quadratic rough Heston model provides a natural way to encode Zumbach effect in the rough volatility paradigm. We apply multi-factor approximation and use deep learning methods to build an efficient calibration procedure for this model. We show that the model is able to reproduce very well both SPX and VIX implied volatilities. We typically obtain VIX option prices within the bid-ask spread and an excellent fit of the SPX at-the-money skew. Moreover, we also explain how to use the trained neural networks for hedging with instantaneous computation of hedging quantities.

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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