A Martingale approach to continuous Portfolio Optimization under CVaR like constraints

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Main Authors: Lelong, Jérôme, Maume-Deschamps, Véronique, Thevenot, William
Format: Preprint
Published: 2025
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author Lelong, Jérôme
Maume-Deschamps, Véronique
Thevenot, William
author_facet Lelong, Jérôme
Maume-Deschamps, Véronique
Thevenot, William
contents We study a continuous-time portfolio optimization problem under an explicit constraint on the Deviation Conditional Value-at-Risk (DCVaR), defined as the difference between the CVaR and the expected terminal wealth. While the mean-CVaR framework has been widely explored, its time-inconsistency complicates the use of dynamic programming. We follow the martingale approach in a complete market setting, as in Gao et al. [4], and extend it by retaining an explicit DCVaR constraint in the problem formulation. The optimal terminal wealth is obtained by solving a convex constrained minimization problem. This leads to a tractable and interpretable characterization of the optimal strategy.
format Preprint
id arxiv_https___arxiv_org_abs_2509_26009
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A Martingale approach to continuous Portfolio Optimization under CVaR like constraints
Lelong, Jérôme
Maume-Deschamps, Véronique
Thevenot, William
Optimization and Control
Statistics Theory
Risk Management
We study a continuous-time portfolio optimization problem under an explicit constraint on the Deviation Conditional Value-at-Risk (DCVaR), defined as the difference between the CVaR and the expected terminal wealth. While the mean-CVaR framework has been widely explored, its time-inconsistency complicates the use of dynamic programming. We follow the martingale approach in a complete market setting, as in Gao et al. [4], and extend it by retaining an explicit DCVaR constraint in the problem formulation. The optimal terminal wealth is obtained by solving a convex constrained minimization problem. This leads to a tractable and interpretable characterization of the optimal strategy.
title A Martingale approach to continuous Portfolio Optimization under CVaR like constraints
topic Optimization and Control
Statistics Theory
Risk Management
url https://arxiv.org/abs/2509.26009