Arbitrum Adds $64.2 Million in Weekly Stablecoin DEX Volume

Arbitrum recorded a $64.2 million increase in stablecoin decentralized exchange volume over a single week, according to on-chain tracking data — more than three times the roughly $19.2 million combined gain across the next seven networks. The comparison measures weekly growth, not total DEX volume, and that distinction matters for anyone reading layer-two competitive positioning.

The scale of the gap is the story. Arc posted the next-largest increase at $11.8 million, followed by Ink at $4.2 million and Tempo at $2.7 million. OP Mainnet, zkSync and Gnosis each gained less than $200,000, while Boba's increase came in under $20,000. In practical terms, Arbitrum's weekly stablecoin flow growth exceeded the combined performance of every tracked competitor by a factor greater than three.

To translate that figure: $64.2 million in a week is roughly $9.2 million per day in incremental stablecoin swapping activity, concentrated on a single network. For market makers and liquidity providers, that is the difference between an execution venue with dependable depth and one where stablecoin rotations carry measurable slippage risk.

A separate data point reinforces the base on which that growth sits. Arbitrum's stablecoin market capitalization stood at $4.51 billion across 18 assets as of Oct. 10. Market capitalization measures the value of stablecoins circulating on the network; weekly DEX volume measures how actively those assets trade. The two figures are distinct, and conflating them is a common analytical error.

What does the growth change for practitioners?

For protocols deploying on Arbitrum, rising stablecoin DEX throughput signals a deepening settlement layer — the venue where traders rotate between dollar-pegged assets, bridge proceeds find a resting place, and treasuries rebalance. Networks that capture stablecoin flow growth tend to attract the liquidity that follows it, because market makers allocate capital toward where turnover already exists.

For the laggards, the numbers sketch a harder picture. OP Mainnet, zkSync and Gnosis gaining less than $200,000 each in a week indicates stablecoin activity on those networks is effectively flat at current turnover levels. Boba's sub-$20,000 figure places it at the margin of the stablecoin conversation entirely.

NullMask brings privacy tooling to Arbitrum

Alongside the volume data, privacy protocol NullMask is now live on Arbitrum. The protocol's toolset lets users send and swap crypto, make deposits and withdrawals, and check balances without exposing transaction details publicly.

The combination is worth noting. A network absorbing the majority of tracked stablecoin DEX growth now hosts privacy-preserving transfer and swap infrastructure. Settlement volume determines where activity concentrates; privacy tooling determines what forms that activity can take.

What to watch next

The figure to monitor is whether Arbitrum sustains this rate of weekly stablecoin growth or the gain reflects a one-week anomaly. If the network holds even a fraction of this pace while competitors remain flat, the liquidity gap between Arbitrum and the rest of the tracked field widens structurally, not cyclically.