Ethereum Rises 8% in a Month, but Arbitrum Soars 135%. Is Robinhood Chain to Blame?

Quick Read

• Arbitrum surged 135% over the past month, dwarfing Ethereum's 8% gain, with the primary catalyst identified as Robinhood Chain, which is built on Arbitrum's technology.

• Robinhood Chain generated $1.9M from $1.5B in 24-hour trading volume on September 1, briefly becoming the highest-earning blockchain that day.

• ARB holders only access Robinhood Chain's 10% revenue share indirectly through DAO governance, and much of the chain's trading activity appears speculative.

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Arbitrum (CRYPTO:ARB) has risen 135% over the last month, compared to Ethereum's (CRYPTO:ETH) more modest 8%. Traders are linking this boost to Robinhood Chain, the blockchain developed by Robinhood (NASDAQ:HOOD) that uses Arbitrum's technology and launched on July 1, 2026.

As of September 24, ARB is trading around $0.21 after a 12.3% drop that day, while ETH sits at $2,694. This raises the question: is Robinhood Chain driving Arbitrum's success, and how does this impact ARB holders?