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 #89 with a market cap of $671M, while Optimism sits at #165 with $274M. In the last 24 hours, ARB moved 2.46% compared to OP's 2.28%. ARB shows higher trading volume, suggesting stronger market activity.