The modular stack changes everything

The transition from monolithic blockchains to modular architectures has fundamentally altered the landscape of blockchain infrastructure. By separating execution, settlement, and data availability into distinct layers, the modular stack has unlocked new vectors for Maximal Extractable Value (MEV) extraction. In this environment, MEV is no longer confined to the block-building process of a single chain; it has become a cross-domain phenomenon.

As Maven11 Research notes, the maturity of an execution environment directly influences the complexity of these opportunities. When transactions on one chain trigger effects on another, the potential for value extraction expands significantly. This interconnectivity creates a web of dependencies that solvers must navigate, turning the modular stack into a complex battlefield for intent-based solving. The separation of concerns that improves scalability also introduces latency and fragmentation, which sophisticated actors exploit to capture value that was previously invisible or inaccessible.

The Rise of Intent-Based Solving

This shift requires a new approach to MEV. Traditional models focused on reordering or censoring transactions within a single block. Modular MEV, however, involves orchestrating actions across multiple layers and domains. Solvers must now account for finality actors, rollup states, and data availability layers to accurately price and execute intents. The result is a more dynamic, albeit more complex, ecosystem where value flows are determined not just by speed, but by the ability to understand and bridge these modular components.

Intent-based solving decouples ordering

Intent-based architectures represent a structural shift in how value is extracted from blockchain networks. Instead of relying on raw transaction ordering, these systems allow solvers to fulfill user desires without controlling the sequence of blocks. This decoupling reduces censorship risks and improves overall efficiency by separating the what from the how.

In traditional MEV models, extractors compete to reorder transactions within a block, often leading to predatory practices like sandwich attacks. Intent-based solving changes this dynamic by treating user requests as outcomes rather than instructions. Solvers compete to find the most efficient path to achieve that outcome, regardless of the specific transaction sequence required.

This approach allows for greater flexibility in execution. Solvers can bundle, split, or route transactions through multiple protocols to best satisfy the user's intent. The result is a system where value extraction is aligned with user benefit, rather than working against it.

Intent-based solving shifts the focus from transaction ordering to outcome fulfillment, fundamentally changing the MEV landscape.

The transition to modular MEV, as discussed in recent analyses, suggests that the maturity of execution environments will play a key role in this evolution. As rollups and DA layers become more sophisticated, the ability to execute intents across domains will become increasingly important. This modular approach allows for specialized solvers to emerge, each optimized for specific types of intents.

For those interested in the technical nuances, the No Execution podcast features discussions with experts from Skip, Duality, and Astria on MEV in the modular stack. Their insights highlight the ongoing development of infrastructure that supports this new paradigm.

Cross-domain MEV opportunities

Modular architecture changes where value hides. In monolithic chains, arbitrage and liquidations are confined to a single execution layer. Modular stacks separate execution from data availability, creating friction points between layers that solvers can exploit. This is the core of cross-domain MEV: capturing value when a transaction on one chain triggers an effect on another.

Rollup to L1 finality gaps

The most immediate opportunity lies in the delay between rollup execution and L1 finality. When a rollup posts data to a DA layer or L1, there is a window where the state is not yet immutable. Solvers can monitor pending rollup transactions and front-run or back-run L1 assets that are correlated with the rollup's output. For example, if a rollup executes a large DEX trade, a solver might anticipate the price impact on the L1 liquidity pool before the L2 state is fully settled. The maturity of the execution environment dictates how much of this cross-chain friction can be captured.

Data availability to execution ordering

MEV also emerges when the data layer interacts with decentralized sequencers. If a rollup relies on a decentralized set of sequencers to order transactions before posting to DA, those sequencers control the order of events. Solvers can bribe or incentivize sequencers to prioritize specific transactions that benefit from a particular ordering relative to L1 events. This creates a two-sided extraction market: one layer where data is published, and another where execution decisions are made. The separation allows for complex strategies that exploit the timing difference between data inclusion and state finalization.

The Rise of Intent-Based Solving

Community views on MEV protection

The modular MEV landscape is shifting from a technical debate to a social contract. As intent-based solving becomes the standard for 2026, the community is actively redefining what constitutes "protection" against predatory extraction. The consensus is no longer just about stopping sandwich attacks; it is about building infrastructure that aligns validator incentives with user privacy.

Central to this shift is the concept of the "MEVzaar." Rather than viewing MEV extraction as an inherent evil, community voices argue for a regulated marketplace where extraction is transparent and competitive. This approach aims to decentralize the nexus of commerce, allowing value to flow back to users rather than being siphoned by opaque block builders.

Forward-looking strategies emphasize modularity as a shield. By separating execution from consensus, developers can implement specific protections for each layer. This allows for specialized MEV-resistant architectures that do not compromise the base layer's security. The goal is a system where protection is baked into the protocol, not patched on after the fact.

FAQs about modular MEV

Modular MEV represents a structural shift in how blockchain networks handle transaction ordering, moving away from monolithic block building toward specialized, intent-based solving. For those navigating this landscape, the terminology can often feel dense. Below are common questions clarifying what MEV is, how it relates to arbitrage, and what these concepts mean for the future of decentralized finance.

Understanding these distinctions is critical for evaluating the impact of intent-based solving. As the network evolves, the line between predatory extraction and legitimate profit will likely blur, making modular architectures essential for maintaining network health.