Arbitrum vs Optimism: Side-by-Side Comparison
Compare ARB and OP — price, market cap, volume, and performance. Updated 2026.
ARB vs OP — Key Differences
Arbitrum is currently ranked #28 with a market cap of $700M, while Optimism sits at #29 with $600M. In the last 24 hours, ARB moved -3.2% compared to OP's -2.9%. ARB shows higher trading volume, suggesting stronger market activity.