MEV redistribution is inevitable because value extraction stems from fundamental blockchain mechanics like transaction ordering and state differences. Protocols like Flashbots' SUAVE or CoW Swap's batch auctions don't eliminate this value; they redirect its flow from searchers to users or other system participants.
Why Most MEV 'Solutions' Simply Redistribute, Not Eliminate, Value Extraction
An audit of the MEV supply chain. Proposer-Builder Separation and MEV-Boost auctions change the captors, not the capture. We analyze the root protocol design flaws that create extractable value and why current 'solutions' fail to address them.
The Great MEV Shell Game
Current MEV mitigation strategies primarily shift extractable value between actors rather than destroying it, creating new market structures and centralization vectors.
Proposer-Builder Separation (PBS) formalizes extraction. Ethereum's PBS roadmap doesn't remove MEV; it creates a professionalized market where specialized builders (e.g., bloXroute, Relays) compete to extract and share profits with validators, potentially centralizing block production power.
Private order flow is the new battleground. Solutions like RPC endpoints from Blink or Rivet incentivize users to sell their transaction order rights, shifting value from public mempools to private channels. This creates a two-tier system where retail loses.
Evidence: Flashbots' MEV-Boost captured >90% of Ethereum blocks post-Merge, demonstrating how 'solutions' consolidate, not dissipate, extractive power. The value didn't vanish; it was captured by a new cartel of builders and relays.
The Professionalization of Extraction: Three Uncomfortable Trends
Current MEV mitigation strategies often formalize and redistribute value capture rather than eliminating it, creating new power structures.
The Problem: The Searcher-to-Builder Oligopoly
The PBS (Proposer-Builder Separation) model centralizes power. Top-tier builders like Flashbots SUAVE, bloXroute, and Titan now control >80% of Ethereum blocks. This creates a new, professionalized extractive layer.
- Vertical Integration: Searchers now run builders, internalizing the value chain.
- Data Advantage: Private mempools and order flow auctions give insiders an unbeatable edge.
- Result: Extraction is not reduced; it's just concentrated among fewer, more sophisticated players.
The Problem: Intent-Based Protocols as Extractable Surplus
User-centric designs like UniswapX and CowSwap solve frontrunning but create a new MEV market. Solvers compete to fulfill user intents, capturing the spread between quoted and executed prices.
- Hidden Spreads: The 'solver subsidy' is MEV by another name, often 10-50 bps per swap.
- Centralizing Force: The most capital-efficient solvers (e.g., Across, 1inch Fusion) dominate, replicating searcher dynamics.
- Result: User experience improves, but value extraction is merely redirected from public mempools to private solver networks.
The Problem: Cross-Chain MEV as an Amplifier
Bridges and omnichain protocols like LayerZero and Axelar create new, complex arbitrage surfaces. Cross-domain MEV (xDMEV) is harder to mitigate and often requires centralized sequencers or relayers to manage.
- Fragmented Liquidity: Arbitrage between 50+ L2s creates a $100M+ opportunity pool.
- Trust Assumptions: Fast, guaranteed finality often relies on a small set of privileged relayers who can extract value.
- Result: MEV scales with ecosystem fragmentation, and 'solutions' often bake extraction into the security model.
Anatomy of a Redistribution: Auditing the PBS & MEV-Boost Stack
Proposer-Builder Separation and MEV-Boost do not eliminate extraction; they formalize and redistribute its profits across a new supply chain.
PBS formalizes a supply chain. It creates a market where builders compete to create the most profitable block, and proposers auction the right to fill it. This shifts value from the monolithic validator to specialized actors like Flashbots, bloXroute, and Titan.
MEV-Boost is a redistribution engine. The protocol does not reduce the total extracted value; it redirects profits from the proposer to the builder and searcher. The winning builder's bid becomes the validator's new revenue stream.
The economic surplus is preserved. The extracted value from users (e.g., via arbitrage on Uniswap or liquidations on Aave) remains. PBS simply determines which professional operators—not users or solo stakers—capture it.
Evidence: Post-merge, over 90% of Ethereum blocks are built via MEV-Boost. This proves the economic dominance of this redistributive model, concentrating block production power in a handful of builder entities.
The MEV Supply Chain: Who Captures What?
Comparing the economic distribution and user outcomes of major MEV mitigation approaches. Most solutions shift value extraction rather than eliminate it.
| Extraction Mechanism | Public Mempool (Baseline) | Private RPC (e.g., Flashbots Protect) | Permissioned Order Flow (e.g., CowSwap, UniswapX) | Fully Encrypted Mempool (e.g., Shutter) |
|---|---|---|---|---|
Primary Value Captor | Searcher & Proposer | Builder & Proposer | Solver Network & Protocol Treasury | Proposer (via PBS) |
User Slippage Improvement vs Baseline | 0% (Baseline) | 10-30% | 50-90% (via batch auctions) | Theoretical 100% (pre-execution) |
Extraction Obfuscated from User | ||||
Requires Trusted Third Party | ||||
Relies on Proposer-Builder Separation (PBS) | ||||
Native Cross-Chain MEV Capture | ||||
Protocol Revenue from MEV Redistribution | 0% | 0% |
| 0% |
Dominant Architecture | Permissionless | Centralized Relay | Intent-Based | Threshold Encryption |
Steelman: "But Redistribution is Progress, Isn't It?"
Redistributing MEV is a tactical improvement, but it fails to address the fundamental economic inefficiency of value extraction.
Redistribution is not elimination. Solutions like MEV-Boost auctions and Flashbots SUAVE shift extracted value from searchers to validators or users, but the underlying search-and-extract economic game persists. The network still pays for the same inefficiency.
The protocol is the ultimate extractor. In a mature system, the protocol itself captures the MEV surplus, as seen in UniswapX's Dutch auctions or CowSwap's batch auctions. This is superior redistribution but still a tax on every swap.
User experience remains adversarial. Even with proposer-builder separation (PBS), users must trust a relay or a builder not to censor or front-run. The mental overhead of navigating MEV risks is a persistent tax on adoption.
Evidence: The Ethereum merge redirected ~$1.3B in annual MEV to validators via MEV-Boost. This is a massive wealth transfer, but the extracted value still originates from the same user transactions.
Protocols Attempting True MEV Resistance, Not Redistribution
Most 'solutions' like Proposer-Builder Separation (PBS) merely change who captures value. These protocols architect for prevention.
The Problem: PBS Redistributes, Not Reduces
Proposer-Builder Separation (PBS) on Ethereum creates a cartel of professional builders, centralizing MEV capture. The economic burden is still passed to the end-user via worse execution prices.\n- Shifts extraction from validators to specialized builders.\n- Increases centralization pressure and requires complex trust assumptions.
The Solution: Threshold Encryption (e.g., Shutter Network)
Encrypts transaction content until after block inclusion, preventing frontrunning and sandwich attacks at the source. Uses a distributed key generation (DKG) network like Gnosis Chain's sMPC to decrypt.\n- Prevents value extraction by hiding intent.\n- Preserves composability and does not require new economic models.
The Solution: SUAVE - A Dedicated Execution Layer
Flashbots' SUAVE is a centralized mempool and decentralized block builder. It aims to become a universal preference layer, competing with builders on execution quality instead of transaction order.\n- Decouples transaction flow from consensus.\n- Creates a market for execution, not information.
The Solution: Fair Sequencing Services (FSS)
Protocols like Astar zkEVM and Fuel use a centralized sequencer with a verifiable, fair ordering rule (e.g., first-come-first-serve). This is a pragmatic, L2-specific approach to MEV resistance.\n- Eliminates intra-block MEV like sandwiches.\n- Introduces a sequencer trust assumption, mitigated by decentralization roadmaps.
The Problem: DEX Aggregators as MEV Conduits
Aggregators like 1inch and UniswapX often route through private mempools (e.g., Flashbots Protect) or solvers (CowSwap) that internalize MEV. This protects their users but redistributes extraction to the solver network.\n- User-level protection, not protocol-level.\n- Concentrates MEV in solver/sequencer sets.
The Solution: In-Protocol Ordering Rules (e.g., Osmosis)
Cosmos app-chains can enforce specific transaction ordering at the consensus level. Osmosis uses threshold encryption for its frontrunning-protected mempool and has explored time-based batch auctions.\n- Bakes MEV resistance into the chain's state machine.\n- Requires sacrificing some throughput and generality.
The Path Forward: Designing for Neutrality
Current MEV mitigation strategies primarily shift value extraction between parties rather than eliminating the underlying economic distortion.
MEV redistribution is not elimination. Protocols like Flashbots' SUAVE or CoW Swap's batch auctions change who captures value, not the fact that value is extracted from ordinary users via latency and ordering advantages.
Neutral infrastructure requires new primitives. The core failure is treating block production as a proprietary service. A truly neutral base layer needs a credibly neutral block-building market, not just a private one like those run by Jito or bloXroute.
Intent-based architectures externalize complexity. Systems like UniswapX and Across Protocol shift the burden of execution from users to solvers, but this creates a new MEV market for solver competition, again redistributing, not removing, extracted value.
Evidence: Ethereum's PBS (Proposer-Builder Separation) framework aims for this neutrality by standardizing the builder role, but its success depends on preventing builder cartelization—a problem current implementations like MEV-Boost have not solved.
TL;DR for the Busy CTO
Current MEV solutions primarily shift value extraction between players rather than solving the underlying economic game.
The Proposer-Builder Separation (PBS) Illusion
Ethereum's PBS (e.g., via MEV-Boost) doesn't eliminate extraction; it formalizes and centralizes it. Value moves from validators to a new cartel of professional builders like Flashbots.\n- Centralizes power in ~5 major builder entities controlling >90% of blocks.\n- Creates a new rent-seeking layer (builders/relays) that captures significant value.\n- Does not protect users; just changes who profits from their failed transactions.
Searcher & Arbitrageur Subsidies
Protocols like UniswapX and CowSwap use intents and batch auctions to reduce frontrunning, but they simply subsidize a different class of extractors.\n- Shifts value from on-chain bots to off-chain solvers (e.g., CowSwap solvers, Across relayers).\n- Creates solver cartels competing on subsidy efficiency, not user price improvement.\n- Introduces new trust assumptions in off-chain actors and cross-chain messaging (e.g., LayerZero, Axelar).
The Encrypted Mempool Mirage
Solutions like Shutter Network or SUAVE aim for privacy but face an intractable dilemma: you must reveal transactions somewhere to be executed.\n- Moves the attack surface from public mempools to trusted encryptors/sequencers.\n- Concentrates trust in a few key management entities, creating a single point of failure/collusion.\n- Fails under economic pressure; the value of decryption keys scales with MEV opportunity, incentivizing attacks.
The Only Real Solution: Economic Redesign
True MEV reduction requires changing the economic game at the protocol level, not layering on bandaids. This means redesigning mechanisms to minimize extractable information and value gaps.\n- Example: Chainlink FSS for fair sequencing, but requires significant decentralization.\n- Example: Application-specific designs (e.g., Osmosis threshold encryption) that limit arbitrage surface area.\n- The hard truth: Some MEV is inherent; the goal is minimization and fair distribution, not elimination.
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