Tuesday 24 June 2025
The digital underworld of blockchain transactions has long been plagued by a problem known as MEV, or Maximum Extractable Value. In essence, it’s a game of cat and mouse where high-stakes traders use clever tactics to snip up lucrative deals before they can be executed on the main blockchain.
A recent study has shed new light on the nature of MEV, revealing that spam-based arbitrage strategies are becoming increasingly prevalent on fast-finality blockchains. These blockchains, such as Arbitrum and ZKsync, promise faster transaction processing times than their slower counterparts. However, this speed comes at a cost: the ability to extract value from transactions in real-time.
Researchers have found that MEV bots are exploiting this latency by splitting profitable arbitrage opportunities into smaller, more manageable chunks. By doing so, they can execute these trades before the market has a chance to react, netting a tidy profit in the process. This strategy is particularly effective on rollups, which are designed to increase the capacity of blockchains without sacrificing security.
One of the most striking findings of the study is the sheer scale of MEV activity. Researchers discovered that over 80% of reverted transactions on major Ethereum rollups were swaps, with nearly half targeting USDC-ETH pools on Uniswap v3/4. This concentration of liquidity has created a lucrative environment for MEV bots to operate.
Another intriguing aspect of the study is the way in which MEV bots are evading traditional fee-based prioritization mechanisms. Instead of bidding for priority fees, these bots are opting to duplicate transactions and rely on sheer speed to get them executed first. This approach allows them to avoid the costs associated with bidding, while still reaping the benefits of early execution.
The implications of this study are significant, highlighting the need for blockchain developers to rethink their approach to transaction ordering and prioritization. As fast-finality blockchains continue to gain popularity, it’s clear that MEV will remain a major challenge unless new solutions are implemented.
One potential solution could be the introduction of decentralized sequencers, which would allow multiple entities to participate in ordering transactions rather than relying on a single centralized authority. This would not only increase security but also provide more opportunities for participants to extract value from transactions.
Ultimately, the struggle against MEV is a cat-and-mouse game, with each side constantly adapting and evolving to stay ahead of the other.
Cite this article: “MEV Bots Exploit Fast-Finality Blockchains Latency for Profit”, The Science Archive, 2025.
Blockchain, Mev, Maximum Extractable Value, Arbitrage, Fast-Finality, Rollups, Uniswap, Ethereum, Decentralized Sequencers, Prioritization Mechanisms
