Robinhood Chain generated roughly $3.6 million in transaction fees in its first month, making it the top revenue-producing Ethereum Layer-2 network (secondary network that batches transactions) after its public mainnet launched on July 1, 2026. That total equaled about 38% of the estimated $6.3 million in fees collected by major L2s during July, although some estimates put Robinhood’s share as high as 56% depending on which networks were included. Built on Arbitrum’s technology as an Ethereum-compatible rollup (network that bundles transactions), the chain supports 24/7 trading of tokenized stocks and DeFi (on-chain financial services) applications. Reports said daily trading volume reached the hundreds of millions of dollars shortly after launch, while tens of millions of individual transactions were processed within the first two weeks. Under the Arbitrum Expansion Program, Robinhood directs 10% of net protocol revenue to the Arbitrum ecosystem, with 8% going to ARB token holders and 2% to developers, while retaining the remaining 90%. In its early days, the new L2 sent only a few thousand dollars in fee transfers to Ethereum mainnet, highlighting pressure on Ethereum’s base-layer revenue.