Optimal Execution and Macroscopic Market Making

Fuente: arXiv
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Hauptverfasser: Guo, Ivan, Jin, Shijia
Format: Preprint
Veröffentlicht: 2025
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author Guo, Ivan
Jin, Shijia
author_facet Guo, Ivan
Jin, Shijia
contents We propose a stochastic game modelling the strategic interaction between market makers and traders of optimal execution type. For traders, the permanent price impact commonly attributed to them is replaced by quoting strategies implemented by market makers. For market makers, order flows become endogenous, driven by tactical traders rather than assumed exogenously. Using the forward-backward stochastic differential equation (FBSDE) characterization of Nash equilibria, we establish a local well-posedness result for the general game. In the specific Almgren-Chriss-Avellaneda-Stoikov model, a decoupling approach guarantees the global well-posedness of the FBSDE system via the well-posedness of an associated backward stochastic Riccati equation. Finally, by introducing small diffusion terms into the inventory processes, global well-posedness is achieved for the approximation game.
format Preprint
id arxiv_https___arxiv_org_abs_2504_06717
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Optimal Execution and Macroscopic Market Making
Guo, Ivan
Jin, Shijia
Trading and Market Microstructure
We propose a stochastic game modelling the strategic interaction between market makers and traders of optimal execution type. For traders, the permanent price impact commonly attributed to them is replaced by quoting strategies implemented by market makers. For market makers, order flows become endogenous, driven by tactical traders rather than assumed exogenously. Using the forward-backward stochastic differential equation (FBSDE) characterization of Nash equilibria, we establish a local well-posedness result for the general game. In the specific Almgren-Chriss-Avellaneda-Stoikov model, a decoupling approach guarantees the global well-posedness of the FBSDE system via the well-posedness of an associated backward stochastic Riccati equation. Finally, by introducing small diffusion terms into the inventory processes, global well-posedness is achieved for the approximation game.
title Optimal Execution and Macroscopic Market Making
topic Trading and Market Microstructure
url https://arxiv.org/abs/2504.06717