Robinhood Chain generated about $4.5 million in transaction fees on September 3, while it spent only around $398 on Ethereum-related settlement costs. The numbers show how an Ethereum Layer 2 can handle a large amount of activity while keeping its Layer 1 settlement costs relatively low.
According to Bitquery, Robinhood Chain collected $4,503,705 in fees that day. About $396 went toward posting data to Ethereum, while another $2 was spent on proof-related costs.
Bitquery found that Robinhood Chain processed around 597 million transactions between its first block on April 30 and September 3. During that period, the network generated about $23 million in total transaction fees.
Most of that revenue came recently. Around 70% of the cumulative fees were generated from August 24 onward. Daily fees climbed from about $54,700 on August 22 to roughly $4.5 million on September 3 as gas usage increased sharply.
The large difference between user fees and Ethereum settlement costs is part of how Layer 2 networks are designed. Robinhood Chain uses Arbitrum technology, operates on top of Ethereum and uses Ethereum blobs to publish transaction data.
Ethereum introduced blobs specifically to provide cheaper data storage for rollups. They use a separate fee market from regular Ethereum execution and allow Layer 2 networks to publish the information needed for data availability at a much lower cost.
However, the $398 settlement cost should not be viewed as Robinhood’s profit. It does not include expenses such as employees, infrastructure, hardware, development, compliance and other operating costs.
The economics are also more complicated because Robinhood Chain shares part of its revenue with the Arbitrum ecosystem. Under the Arbitrum Expansion Program, 10% of Robinhood Chain’s net protocol revenue goes to the Arbitrum ecosystem, with 8% directed to the ArbitrumDAO treasury and 2% to the Arbitrum Developer Guild.
Robinhood Chain also keeps significant control over transaction sequencing. L2Beat currently describes the chain as having a centralized sequencer, while only two whitelisted validators can challenge state updates. The platform also has transaction-filtering and upgrade controls that L2Beat includes in its risk assessment.
Despite those controls, Robinhood Chain continues to process significant activity. L2Beat recently showed about $2.99 billion in value secured and roughly 114 user operations per second over the previous day. These figures measure different things from traditional DeFi TVL and should not be treated as the same metric.
Bitquery also found that automated activity played a major role in the September 3 fee spike. Eight contract addresses accounted for about 79% of the increase in gas demand. One swap router processed around 1.7 million transactions and paid about $1.1 million in fees that day.
Another group of 31 wallets sent nearly 695,000 transactions to an order-settlement contract and paid about $692,000 in fees. Bitquery said the activity looked consistent with heavy automated trading, although blockchain data alone cannot prove who controls those addresses.
By September 10, Robinhood Chain’s daily gas revenue had fallen to about $944,000 even though transaction activity remained close to early-September levels. This suggests the $4.5 million figure from September 3 was not a normal daily level.
Overall, the September 3 data shows a major gap between what users paid to transact on Robinhood Chain and what the network paid Ethereum for settlement. But that gap should not be treated as pure Robinhood profit. Ethereum settlement costs, Robinhood’s own operating costs, sequencer economics and Arbitrum’s revenue share all represent different parts of the same Layer 2 system.
