Jump Diffusion-Informed Neural Networks with Transfer Learning for Accurate American Option Pricing under Data Scarcity

• URL: http://arxiv.org/abs/2409.18168v1
• Date: Thu, 26 Sep 2024 17:50:12 GMT
• Title: Jump Diffusion-Informed Neural Networks with Transfer Learning for Accurate American Option Pricing under Data Scarcity
• Authors: Qiguo Sun, Hanyue Huang, XiBei Yang, Yuwei Zhang,
• Abstract summary: This study presents a comprehensive framework for American option pricing consisting of six interrelated modules. The framework combines nonlinear optimization algorithms, analytical and numerical models, and neural networks to improve pricing performance. The proposed model shows superior performance in pricing deep out-of-the-money options.
• Score: 1.998862666797032
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Option pricing models, essential in financial mathematics and risk management, have been extensively studied and recently advanced by AI methodologies. However, American option pricing remains challenging due to the complexity of determining optimal exercise times and modeling non-linear payoffs resulting from stochastic paths. Moreover, the prevalent use of the Black-Scholes formula in hybrid models fails to accurately capture the discontinuity in the price process, limiting model performance, especially under scarce data conditions. To address these issues, this study presents a comprehensive framework for American option pricing consisting of six interrelated modules, which combine nonlinear optimization algorithms, analytical and numerical models, and neural networks to improve pricing performance. Additionally, to handle the scarce data challenge, this framework integrates the transfer learning through numerical data augmentation and a physically constrained, jump diffusion process-informed neural network to capture the leptokurtosis of the log return distribution. To increase training efficiency, a warm-up period using Bayesian optimization is designed to provide optimal data loss and physical loss coefficients. Experimental results of six case studies demonstrate the accuracy, convergence, physical effectiveness, and generalization of the framework. Moreover, the proposed model shows superior performance in pricing deep out-of-the-money options.

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