MEV Is a Property of Shared State, Not a Bug to Be Patched
TREE NEWS reports: The core insight behind maximal extractable value (MEV) is simple: whenever multiple transactions compete to update the same shared state under sequential execution, the right to order them carries economic value. That value cannot be designed away, because it is a structural consequence of how blockchains, permissioned ledgers, and even traditional market infrastructure process transactions. The real question is not whether MEV exists, but who controls ordering rights, whether the resulting rents are transparent, and whether the proceeds flow to a few intermediaries or are redistributed to the broader market.
Two Divergent Paths: Public Auctions vs. Private Ordering
Ethereum has taken the path of radical transparency. Through proposer-builder separation (PBS) and a competitive block-building market, ordering rights are openly priced and auctioned. Builders bid for the right to construct blocks, searchers compete to bundle profitable transactions, and validators capture a slice of the value. The system does not eliminate MEV—it socializes its discovery and channels part of the rent back to the network through fee markets and, in some designs, burn mechanisms.
Permissioned ledgers such as Canton take the opposite approach. Rather than exposing ordering value to an open auction, they embed it inside contracts, synchronizers, and private bilateral relationships. Ordering rights become a function of governance and contractual design rather than market competition. The value is still there; it is simply hidden behind institutional walls.
Traditional Finance Has Always Monetized Order Flow
Critics who treat MEV as a crypto-native pathology overlook how mainstream markets operate. Payment for order flow, dark pools, and last-look provisions are all mechanisms that capture ordering value while obscuring its magnitude. Retail brokers sell their clients’ flow to wholesalers; dark pools execute away from public quotes; FX dealers reserve the right to reject a trade within milliseconds. These are MEV by another name, and they have been entrenched for decades.
The comparison matters because it reframes the policy debate. If ordering value is universal, the goal should not be to ban it but to make its capture legible and its distribution fair.
What to Watch: Transparency, Auction Design, and Redistribution
- Who holds ordering power: Validators, builders, sequencers, or centralized intermediaries—each concentrates different risks.
- Whether rents are visible: Public auctions and on-chain data expose value; private relationships conceal it.
- How proceeds are shared: Burn mechanisms, rebates, and protocol-owned auctions can return value to users rather than a narrow set of searchers and builders.
As rollups adopt their own sequencing markets and institutional chains experiment with permissioned ordering, the design space is widening. The projects that win trust will be those that treat ordering value as a public resource to be governed, not a private rent to be extracted.
