DeFi Liquidation Risk Modeling Using Geometric Brownian Motion

Fuente: arXiv
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Autori principali: Belenko, Timofei, Vosorov, Georgii
Natura: Preprint
Pubblicazione: 2025
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author Belenko, Timofei
Vosorov, Georgii
author_facet Belenko, Timofei
Vosorov, Georgii
contents In this paper, we propose an analytical method to compute the collateral liquidation probability in decentralized finance (DeFi) stablecoin single-collateral lending. Our approach models the collateral exchange rate as a zero-drift geometric Brownian motion, and derives the probability of it crossing the liquidation threshold. Unlike most existing methods that rely on computationally intensive simulations such as Monte Carlo, our formula provides a lightweight, exact solution. This advancement offers a more efficient alternative for risk assessment in DeFi platforms.
format Preprint
id arxiv_https___arxiv_org_abs_2505_08100
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle DeFi Liquidation Risk Modeling Using Geometric Brownian Motion
Belenko, Timofei
Vosorov, Georgii
Risk Management
Computational Finance
Mathematical Finance
In this paper, we propose an analytical method to compute the collateral liquidation probability in decentralized finance (DeFi) stablecoin single-collateral lending. Our approach models the collateral exchange rate as a zero-drift geometric Brownian motion, and derives the probability of it crossing the liquidation threshold. Unlike most existing methods that rely on computationally intensive simulations such as Monte Carlo, our formula provides a lightweight, exact solution. This advancement offers a more efficient alternative for risk assessment in DeFi platforms.
title DeFi Liquidation Risk Modeling Using Geometric Brownian Motion
topic Risk Management
Computational Finance
Mathematical Finance
url https://arxiv.org/abs/2505.08100