The deep parametric PDE method and applications to option pricing
The deep parametric PDE method and applications to option pricing
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深度参数偏微分方程方法及其在期权定价中的应用
DOI:
10.1016/j.amc.2022.127355
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发表时间:
2022
影响因子:
4
通讯作者:
Glau K
中科院分区:
文献类型:
--
作者:
Glau K
We propose, formalise and analyse the deep parametric PDE method to solve high-dimensional parametric partial differential equations with a focus on financial applications. A single neural network approximates the solution of a whole family of PDEs after being trained without the need of sample solutions. As a practical application, we compute option prices and Greeks in the multivariate Black-Scholes model as there is an urgent need for highly efficient methods. After a single training phase, the prices and sensitivities for different times, states and model parameters are available in milliseconds. Exploiting the PDE framework and incorporating a-priori knowledge of no-arbitrage bounds improves the performance significantly. We evaluate the accuracy in the price, the Greeks and the implied volatility with examples of up to 25 dimensions. A comparison with alternative machine learning methods confirms the effectiveness of the new approach and reveals advantages of the underlying PDE formulation.
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