Arbitrum ($ARB ) is a leading layer-2 scaling solution for Ethereum, designed to offer faster and cheaper transactions using optimistic rollups. As of May 2025, $ARB is trading near $1.22, with support at $1.10 and resistance at $1.40. The network consistently ranks high in total value locked (TVL) among L2s, and ongoing developments like Arbitrum Orbit and Stylus enhance its ecosystem appeal, supporting long-term bullish sentiment.