Solving The Dynamic Volatility Fitting Problem: A Deep Reinforcement Learning Approach
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866929544056799232 |
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| author | Gnabeyeu, Emmanuel Karkar, Omar Idboufous, Imad |
| author_facet | Gnabeyeu, Emmanuel Karkar, Omar Idboufous, Imad |
| contents | The volatility fitting is one of the core problems in the equity derivatives business. Through a set of deterministic rules, the degrees of freedom in the implied volatility surface encoding (parametrization, density, diffusion) are defined. Whilst very effective, this approach widespread in the industry is not natively tailored to learn from shifts in market regimes and discover unsuspected optimal behaviors. In this paper, we change the classical paradigm and apply the latest advances in Deep Reinforcement Learning(DRL) to solve the fitting problem. In particular, we show that variants of Deep Deterministic Policy Gradient (DDPG) and Soft Actor Critic (SAC) can achieve at least as good as standard fitting algorithms. Furthermore, we explain why the reinforcement learning framework is appropriate to handle complex objective functions and is natively adapted for online learning. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_11789 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Solving The Dynamic Volatility Fitting Problem: A Deep Reinforcement Learning Approach Gnabeyeu, Emmanuel Karkar, Omar Idboufous, Imad Computational Finance Optimization and Control Probability Risk Management Machine Learning The volatility fitting is one of the core problems in the equity derivatives business. Through a set of deterministic rules, the degrees of freedom in the implied volatility surface encoding (parametrization, density, diffusion) are defined. Whilst very effective, this approach widespread in the industry is not natively tailored to learn from shifts in market regimes and discover unsuspected optimal behaviors. In this paper, we change the classical paradigm and apply the latest advances in Deep Reinforcement Learning(DRL) to solve the fitting problem. In particular, we show that variants of Deep Deterministic Policy Gradient (DDPG) and Soft Actor Critic (SAC) can achieve at least as good as standard fitting algorithms. Furthermore, we explain why the reinforcement learning framework is appropriate to handle complex objective functions and is natively adapted for online learning. |
| title | Solving The Dynamic Volatility Fitting Problem: A Deep Reinforcement Learning Approach |
| topic | Computational Finance Optimization and Control Probability Risk Management Machine Learning |
| url | https://arxiv.org/abs/2410.11789 |