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arXiv 2007.10462q-fin.CP
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深度局部波动

Deep Local Volatility

Marc Chataigner, Stéphane Crépey, Matthew Dixon

摘要:

期权定价的深度学习已经成为一种快速计算的新方法,并应用于希腊人的校准和计算。然而,这些方法中的许多方法不强制执行任何无套利条件,并且从不考虑随后的局部波动率曲面。在这篇文章中,我们开发了一种深度学习方法来插值欧洲香草期权价格,共同产生局部波动率的完整表面。我们证明了修改的损失函数或前馈网络架构,以执行(硬约束方法)或有利于(软约束方法)的无套利条件,我们指定的实验设计参数,需要足够的性能。一个新的组成部分是使用的Dupire公式,以强制执行与期权价格的本地波动率的界限,在网络拟合。我们的方法是在DAX香草期权的真实数据集上进行数字基准测试的。

英文摘要:

Deep learning for option pricing has emerged as a novel methodology for fast computations with applications in calibration and computation of Greeks. However, many of these approaches do not enforce any no-arbitrage conditions, and the subsequent local volatility surface is never considered. In this article, we develop a deep learning approach for interpolation of European vanilla option prices which jointly yields the full surface of local volatilities. We demonstrate the modification of the loss function or the feed forward network architecture to enforce (hard constraints approach) or favor (soft constraints approach) the no-arbitrage conditions and we specify the experimental design parameters that are needed for adequate performance. A novel component is the use of the Dupire formula to enforce bounds on the local volatility associated with option prices, during the network fitting. Our methodology is benchmarked numerically on real datasets of DAX vanilla options.

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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