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Utility‐based pricing and hedging of contingent claims in Almgren‐Chriss model with temporary price impact

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  • Ibrahim Ekren
  • Sergey Nadtochiy

Abstract

In this paper, we construct the utility‐based optimal hedging strategy for a European‐type option in the Almgren‐Chriss model with temporary price impact. The main mathematical challenge of this work stems from the degeneracy of the second order terms and the quadratic growth of the first‐order terms in the associated Hamilton‐Jacobi‐Bellman equation, which makes it difficult to establish sufficient regularity of the value function needed to construct the optimal strategy in a feedback form. By combining the analytic and probabilistic tools for describing the value function and the optimal strategy, we establish the feedback representation of the latter. We use this representation to derive an explicit asymptotic expansion of the utility indifference price of the option, which allows us to quantify the price impact in options' market via the price impact coefficient in the underlying market.

Suggested Citation

  • Ibrahim Ekren & Sergey Nadtochiy, 2022. "Utility‐based pricing and hedging of contingent claims in Almgren‐Chriss model with temporary price impact," Mathematical Finance, Wiley Blackwell, vol. 32(1), pages 172-225, January.
    • Handle: RePEc:bla:mathfi:v:32:y:2022:i:1:p:172-225
    DOI: 10.1111/mafi.12330
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    References listed on IDEAS

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    Cited by:

    1. Leonid Dolinskyi & Yan Dolinsky, 2024. "Optimal liquidation with high risk aversion and small linear price impact," Decisions in Economics and Finance, Springer;Associazione per la Matematica, vol. 47(1), pages 183-198, June.
    2. Yan Dolinsky, 2022. "Duality Theory for Exponential Utility--Based Hedging in the Almgren--Chriss Model," Papers 2210.03917, arXiv.org, revised Jun 2023.
    3. Moritz Voß, 2022. "A two-player portfolio tracking game," Mathematics and Financial Economics, Springer, volume 16, number 6, February.

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