<ul><li>US retail trading giant Robinhood has listed Ethereum layer-2 scaling solution Arbitrum (ARB) on its trading platform.</li><li>Following the news, the price of ARB rallied from $0.374 to $0.421 within a day.</li><li>ARB joins Robinhood's suite of crypto products, which includes Bitcoin, Ethereum, Cardano, Solana, and others.</li><li>Robinhood recently reported an 8x increase in crypto trading revenue in Q4 of 2021.</li></ul>

Retail Trading Giant Robinhood Lists Ethereum Layer-2 Arbitrum, Triggering Rally for ARB

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