The ARB token jumped roughly 7.6% after Robinhood Chain, a permissionless Ethereum Layer-2 built on Arbitrum’s Orbit technology stack, went live on its public mainnet and announced a fee-sharing model that funnels revenue directly back into the Arbitrum ecosystem.

What Robinhood Chain actually is

Robinhood Chain launched its public mainnet on July 1, 2026. The chain is purpose-built for tokenized real-world assets, think stocks, bonds, and other traditional financial instruments, alongside decentralized finance applications and on-chain financial services.

Block times clock in at 100 milliseconds. ETH serves as the gas fee currency, keeping the chain tethered to the broader Ethereum ecosystem rather than spinning up yet another token nobody asked for.

Robinhood Chain processed 4 million transactions within its first week of operation. Uniswap recorded $500 million in 24-hour trading volume on the chain. Chainlink integration rounds out the launch partnerships, providing the oracle infrastructure that DeFi applications need to function.

The fee-sharing model that moved ARB

Offchain Labs, the company behind Arbitrum’s core technology, rolled out a new revenue-sharing structure alongside the Robinhood Chain launch. The model is straightforward: 10% of net protocol fees generated by chains built using Arbitrum’s infrastructure flow back into the ecosystem.

That 10% splits into two buckets. The Arbitrum DAO treasury receives 8%, while the Developer Guild, which funds builders working on Arbitrum tooling and applications, gets the remaining 2%.

ARB currently trades around $0.078 with a market capitalization of approximately $485 million. The 7.6% price increase reflects the market’s recognition that fee-sharing transforms ARB from a governance token with limited value accrual into something closer to a revenue-generating asset.

Robinhood’s crypto evolution

This launch didn’t come out of nowhere. Robinhood has been building its blockchain presence since 2024, with each step escalating its commitment to on-chain finance. The company launched tokenized stock offerings on the Arbitrum network in 2025, testing the waters before committing to its own chain.

What this means for investors

For ARB holders, the fee-sharing model introduces a new value driver that didn’t exist before. Every transaction on Robinhood Chain, and every future Orbit chain that adopts this model, generates revenue for the DAO treasury.

For traders evaluating ARB at current levels, the key metric to watch isn’t the token price itself but the sustained fee generation from Robinhood Chain and any subsequent Orbit chains that adopt the 10% revenue share.