Papers › Optimal Market Making by Reinforcement Learning

Optimal Market Making by Reinforcement Learning

8 Apr 2021arXiv:2104.04036archive 2025-07-28

Matias Selser, Javier Kreiner, Manuel Maurette

We apply Reinforcement Learning algorithms to solve the classic quantitative finance Market Making problem, in which an agent provides liquidity to the market by placing buy and sell orders while maximizing a utility function. The optimal agent has to find a delicate balance between the price risk of her inventory and the profits obtained by capturing the bid-ask spread. We design an environment with a reward function that determines an order relation between policies equivalent to the original utility function. When comparing our agents with the optimal solution and a benchmark symmetric agent, we find that the Deep Q-Learning algorithm manages to recover the optimal agent.

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Q-LearningReinforcement LearningReinforcement Learning (RL)reinforcement-learning

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Q-Learning

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