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- W4323663084 abstract "Recent studies have demonstrated the efficiency of Variational Autoencoders (VAE) to compress high-dimensional implied volatility surfaces into a low dimensional representation. Although this method can be effectively used for pricing vanilla options, it does not provide any explicit information about the dynamics of the underlying asset. In our work we present an effective way to overcome this problem. We use a Weighted Monte Carlo approach to first generate paths from a simple a priori Brownian dynamics, and then calculate path weights to price options correctly. We develop and successfully train a neural network that is able to assign these weights directly from the latent space. Combining the encoder network of the VAE and this new ”weight assigner” module, we are able to build a dynamic pricing framework which cleanses the volatility surface from irrelevant noise fluctuations, and then can price not just vanillas, but also exotic options on this idealized vol surface. This pricing method can provide relative value signals for option traders.Key findings of the paper: We confirmed the success of Variational Autoencoders in compressing volatility surfaces into low dimensional latent spaces in the swaption market.We successfully extracted the physically meaningful information from the latent representation of the market by translating the latent coordinates into weights of Monte Carlo paths.We developed a hybrid approach by combining Deep Learning and Weighted Monte Carlo that can price any type of option consistently with the latent model represented by the fully trained VAE." @default.
- W4323663084 created "2023-03-10" @default.
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- W4323663084 date "2023-03-09" @default.
- W4323663084 modified "2023-09-27" @default.
- W4323663084 title "Deep weighted Monte Carlo: a hybrid option pricing framework using neural networks" @default.
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- W4323663084 doi "https://doi.org/10.1080/14697688.2023.2181206" @default.
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