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 #68 with a market cap of $1.3B, while Optimism sits at #142 with $326M. In the last 24 hours, ARB moved -4.11% compared to OP's -4.58%. ARB shows higher trading volume, suggesting stronger market activity.