Measuring CEX-DEX Extracted Value and Searcher Profitability: The Darkest of the MEV Dark Forest

• URL: http://arxiv.org/abs/2507.13023v3
• Date: Sun, 03 Aug 2025 08:26:10 GMT
• Title: Measuring CEX-DEX Extracted Value and Searcher Profitability: The Darkest of the MEV Dark Forest
• Authors: Fei Wu, Danning Sui, Thomas Thiery, Mallesh Pai,
• Abstract summary: We estimate a total of 233.8M USD extracted by 19 major CEX-DEX searchers from 7,203,560 identified CEX-DEX arbitrages.<n>Our analysis reveals increasing centralization trends as three searchers captured three-quarters of both volume and extracted value.<n>These insights illuminate the darkest corner of the MEV landscape and highlight the critical implications of CEX-DEX arbitrages for decentralization.
• Score: 9.219248112124703
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This paper provides a comprehensive empirical analysis of the economics and dynamics behind arbitrages between centralized and decentralized exchanges (CEX-DEX) on Ethereum. We refine heuristics to identify arbitrage transactions from on-chain data and introduce a robust empirical framework to estimate arbitrage revenue without knowing traders' actual behaviors on CEX. Leveraging an extensive dataset spanning 19 months from August 2023 to March 2025, we estimate a total of 233.8M USD extracted by 19 major CEX-DEX searchers from 7,203,560 identified CEX-DEX arbitrages. Our analysis reveals increasing centralization trends as three searchers captured three-quarters of both volume and extracted value. We also demonstrate that searchers' profitability is tied to their integration level with block builders and uncover exclusive searcher-builder relationships and their market impact. Finally, we correct the previously underestimated profitability of block builders who vertically integrate with a searcher. These insights illuminate the darkest corner of the MEV landscape and highlight the critical implications of CEX-DEX arbitrages for Ethereum's decentralization.

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