An Empirical Analysis on Financial Markets: Insights from the Application of Statistical Physics

Haochen Li, Yi Cao, Maria Polukarov and Carmine Ventre

Papers from arXiv.org

Abstract: In this study, we introduce a physical model inspired by statistical physics for predicting price volatility and expected returns by leveraging Level 3 order book data. By drawing parallels between orders in the limit order book and particles in a physical system, we establish unique measures for the system's kinetic energy and momentum as a way to comprehend and evaluate the state of limit order book. Our model goes beyond examining merely the top layers of the order book by introducing the concept of 'active depth', a computationally-efficient approach for identifying order book levels that have impact on price dynamics. We empirically demonstrate that our model outperforms the benchmarks of traditional approaches and machine learning algorithm. Our model provides a nuanced comprehension of market microstructure and produces more accurate forecasts on volatility and expected returns. By incorporating principles of statistical physics, this research offers valuable insights on understanding the behaviours of market participants and order book dynamics.

Date: 2023-08, Revised 2024-06
New Economics Papers: this item is included in nep-fmk, nep-hme and nep-mst
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