Arbitrum processed 478M transactions in H1 2026, or 2.7B lifetime, and $6.19M accrued to ArbitrumDAO across four income lines at more than 97% gross margin. Robinhood Chain, built on Arbitrum tech and live on mainnet since July 1, contributed $360K in licensing fees in July alone and hit a record $3.75M single-day fee day on Sept. 1.
Matters because: The ecosystem is diversifying revenue beyond base-layer fees, which may strengthen Arbitrum’s longer-term valuation case if Robinhood Chain growth continues.