Arbitrum’s fee-sharing model puts value accrual test to Robinhood Chain launch

Offchain Labs, the developer behind Arbitrum, has introduced a revenue-sharing arrangement requiring every Layer 2 network built on its technology stack to remit 10% of net protocol revenue back to the Arbitrum ecosystem, a mechanism that will apply to Robinhood Chain among other emerging networks. The scheme, termed the Arbitrum Expansion Programme (AEP), directs 8% of qualifying revenue to the Arbitrum DAO treasury and 2% to the Arbitrum Developer Guild, according to Crypto Briefing.

The move addresses a structural question that has dogged so-called “modular” blockchain ecosystems: how a core technology provider captures value once its stack is licensed out to third parties that settle transactions elsewhere. For ARB token holders, whose governance rights extend to the DAO treasury, the arrangement offers a tangible link between ecosystem expansion and asset value that has previously been absent from many Layer 2 tokenomics models.

Sequencer fees and MEV capture in scope

The AEP applies specifically to chains that use Arbitrum’s technology but settle transactions on blockchains other than Arbitrum One or Nova. Revenue subject to the sharing arrangement derives from sequencer profits — the fees earned by the party responsible for ordering and processing transactions — and could extend to income generated through Timeboost, Arbitrum’s mechanism for capturing maximal extractable value, should a given chain adopt it.

This design mirrors, in structure if not detail, the approach taken by Optimism’s Superchain model, which collects revenue from OP Stack chains including Coinbase’s Base network. Offchain Labs’ arrangement is understood to be a direct competitive response, intended to prevent the proliferation of Arbitrum-based chains from becoming what amounts to a value-extraction problem in which the core developer benefits while the wider ecosystem, and its token holders, do not.

Robinhood Chain provides an early test case

Robinhood Chain, the trading platform’s own Ethereum Layer 2 built on the Arbitrum stack, is the highest-profile network operating under the new terms. The chain moved from a public testnet launched on 10 February 2026 to a full mainnet, processing 4 million transactions in its first week of operation, with Uniswap integrated as a liquidity partner from day one.

Robinhood’s involvement with Arbitrum predates the chain’s launch: the company had already deployed tokenised US stocks and exchange-traded funds on Arbitrum One during 2025 before progressing to its dedicated network. Offchain Labs, co-founded by Steven Goldfeder and Ed Felten, provided technical support throughout the build, with Goldfeder having previously stressed the stack’s readiness for enterprise-grade financial applications.

Implications for governance and institutional adoption

The scale of Robinhood Chain’s early transaction volumes gives the revenue-sharing figure practical weight rather than symbolic value, suggesting the DAO treasury and Developer Guild could see meaningful inflows if usage persists. Robinhood’s progression from deploying tokenised assets on a shared chain to operating its own dedicated network establishes a template that other regulated fintech firms may follow as tokenisation of traditional securities gathers pace.

For European observers, the episode illustrates how Layer 2 infrastructure decisions increasingly intersect with questions of governance accountability and revenue transparency — themes that regulators assessing tokenisation frameworks under frameworks such as MiCA are likely to scrutinise as more regulated entities build proprietary blockchain infrastructure rather than relying solely on public networks.

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