CoW Protocol Launches Fair Combinatorial Batch Auctions (FCBA)

๐Ÿฎ Batch Auctions Just Got Smarter

By CoW DAO
Jul 14, 2025, 3:06 PM
CoW DAOTwitter

CoW Protocol has upgraded its batch auction system with FCBA (Fair Combinatorial Batch Auctions), delivering significant improvements:

  • 33% higher throughput per auction
  • Enhanced batch matching efficiency
  • Faster settlement times
  • Combinatorial solver bidding
  • 25% increase in solver rewards

The upgrade maintains CoW's MEV protection while adding fairness guarantees: trades only execute when beneficial for all participants.​ This follows recent expansions to Polygon and Avalanche networks, where CoW offers gasless trading and MEV protection.​

Learn more about FCBA

Sources

Want to know why CoW Swap is the king of intent-based DEXes? ๐Ÿค” Besides being awesome and available in loads of places. This report from @sui414 and friends is a good place to start! Let's dive in shall we? ๐Ÿงต

danning
danning
@sui414

Excited to share our latest paper with @ballsyalchemist @dex_chen_V from @thelatestindefi TLDR fellowship - measuring Execution Welfare on solver-based DEX (CoWSwap, 1inch Fusion and UniswapX). So which DEX has better price ๐Ÿ‘‘ for users? A thread ๐Ÿงต: Paper Link:

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