Robinhood Chain, the Ethereum layer-two network launched by Robinhood using Arbitrum technology, just posted a dramatic fee spike. In the last 24 hours, it generated nearly $2.9 million in transaction fees, versus roughly $12,000 on Arbitrum One. That sudden gap put fresh attention on the Arbitrum orbit, and the market responded with a sharp move higher in ARB.
ARB pressed sharply higher over the last 48 one-hour candles, opening near $0.13 and closing just below $0.19. The chart shows ARB up more than 39% with buyers repeatedly testing resistance at $0.20, while holding key support above $0.13.
The jump in ARB tracks more than just token optimism. Robinhood Chain’s transaction surge is changing how investors view Arbitrum, because the chain uses Arbitrum’s technology and feeds its fee-sharing structure. That creates a direct revenue link between activity on a third-party chain and the wider Arbitrum ecosystem. The market appears to be repricing Arbitrum less as a single chain and more as infrastructure that can capture value from external demand. The immediate test is whether that fee strength holds beyond this initial burst.