Papers › Robust deep hedging

Robust deep hedging

18 Jun 2021arXiv:2106.10024archive 2025-07-28

Eva Lütkebohmert, Thorsten Schmidt, Julian Sester

We study pricing and hedging under parameter uncertainty for a class of Markov processes which we call generalized affine processes and which includes the Black-Scholes model as well as the constant elasticity of variance (CEV) model as special cases. Based on a general dynamic programming principle, we are able to link the associated nonlinear expectation to a variational form of the Kolmogorov equation which opens the door for fast numerical pricing in the robust framework. The main novelty of the paper is that we propose a deep hedging approach which efficiently solves the hedging problem under parameter uncertainty. We numerically evaluate this method on simulated and real data and show that the robust deep hedging outperforms existing hedging approaches, in particular in highly volatile periods.

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BS_Delta juliansester/nga/Functions.py official repository unverified MIT (permissive) · 87b1087ec9c2ade9 · report
generate_path juliansester/nga/Functions.py official repository unverified MIT (permissive) · 7e16ed6d4224abc2 · report
generate_path_non_robust juliansester/nga/Functions_NonRobust.py official repository unverified MIT (permissive) · e7e7e326cec12f82 · report
linear_pde juliansester/nga/FiniteDifferences.py official repository unverified MIT (permissive) · 067535ef18325ee3 · report
nonlinear_pde juliansester/nga/FiniteDifferences.py official repository unverified MIT (permissive) · 03e7db977f07d229 · report
optimal_hedge juliansester/nga/Functions.py official repository unverified MIT (permissive) · 3678b3e1bbe8279c · report
optimal_hedge_non_robust juliansester/nga/Functions_NonRobust.py official repository unverified MIT (permissive) · 1bcd019e6240ebc2 · report

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