Who Wins Ethereum Block Building Auctions and Why? | Devcon SEA

Thu, Oct 2, 2025, 12:00 AM

Today, top 3 block builders produce over 90% of blocks on Ethereum via MEV-boost auction. The block builder market's dynamics evolve rapidly and has significant impact on the development of private mempools, wallets/apps orderflow auctions, and censorship resistance topic. In this talk, we share an overview of why the top builders win the most market share, using orderflow composition and bidding behavioral data. We hope to highlight the centralizing risks and failures of current market design. Speaker(s): Burak Öz, Danning Sui Skill level: Intermediate Track: Cryptoeconomics Keywords: blocks, auction Follow us: https://twitter.com/efdevcon, https://twitter.com/ethereum, https://warpcast.com/devcon Learn more about devcon: https://www.devcon.org/ Learn more about ethereum: https://ethereum.org/ Visit the https://archive.devcon.org/ to gain access to the entire library of Devcon talks with the ease of filtering, playlists, personalized suggestions, decentralized access on Swarm, IPFS and more. Devcon is the Ethereum conference for developers, researchers, thinkers, and makers. Devcon SEA was held in Bangkok, Thailand on Nov 12 - Nov 15, 2024. Devcon is organized and presented by the Ethereum Foundation. To find out more, please visit https://ethereum.foundation/