Batch Auctions
Batch auctions are a mechanism used in decentralized finance to mitigate the negative effects of front-running and MEV extraction. Instead of processing transactions sequentially as they arrive, the protocol groups all orders received within a specific time window and executes them simultaneously at a single clearing price.
This process eliminates the ability for attackers to front-run individual orders because the specific order of transactions within the batch does not affect the execution price for the participants. By removing the incentive to compete for speed and gas priority, batch auctions promote a fairer and more efficient market structure.
This approach aligns with traditional financial exchange models that prioritize price discovery over transaction speed. It is increasingly adopted by decentralized exchanges to improve user experience and protect against predatory trading practices.