TLDR
Base and Polygon showed the clearest gains in Layer 2 activity this week, while ethereum/">Optimism held steady and consolidation toward the big three continued.
- Base: transactions up 108% recently and a majority of L2 activity per new analyses. transactions up 108%, majority share.
- Polygon: activity increased 81%, pointing to a short?term share rebound. activity increased 81%.
- Optimism and Arbitrum: steady dominance alongside Base as usage concentrates into the top three. consolidation to top three.
Deep Dive
1. Base Momentum
Base (Coinbases L2) continues to gain share on rising activity and stronger on?ramps. Recent reporting notes Base transactions rose 108% over 30 days, reinforcing its leadership trend this week as activity concentrated on the largest L2s. See the transaction surge and consolidation context in the reports on the transaction growth and the tightening grip of the top three.
Base also climbed into the largest L2s by scale this year, with only Arbitrum bigger, signaling durable network effects that can carry week?to?week share gains. That broader positioning is highlighted in a recent profile of Bases growth as one of the largest L2s by size, second to Arbitrum in total footprint, in a feature piece.
If you track L2 usage, Base remains the leader to watch for incremental gains, helped by easy fiat on?ramps and active apps.
2. Polygon Activity Jump
Polygons network activity increased 81% in recent weeks, which supports a short?term regain of share during this weeks rotation in usage. Lower fees and rollup efficiency improvements across Ethereum have supported L2s broadly, and Polygons usage pickup stands out in the same dataset that shows Bases surge. See the activity figures and fee backdrop in the market update.
While terminology varies on whether Polygon components are categorized as L2 or sidechain, the practical takeaway is the same: user activity flowing toward Polygon can nudge share higher in weekly snapshots.
Monitor active addresses and DEX volumes on Polygon to confirm that the activity spike translates into sustained share gains.
3. Optimism and Arbitrum Holding
Optimism and Arbitrum retained meaningful share as the L2 landscape consolidates into a few large networks. A new analysis highlights that activity has concentrated around Base, Arbitrum, and Optimism, with smaller rollups losing relevance, implying steady or rising share for the top trio week over week. See the consolidation summary in the 21Shares?cited report.
Arbitrum still anchors the upper tier by size, while Optimism benefits from the Superchain ecosystem and builder alignment. Together with Bases growth, this triad frames the weeks share dynamics.
For exposure to L2 growth, the big three continue to absorb most users and liquidity; smaller L2s face headwinds keeping or growing share.
Conclusion
This week reinforced the ongoing concentration of L2 usage: Base advanced on high transaction growth, Polygon showed a notable activity rebound, and Optimism and Arbitrum held their ground. To verify continued share gains, watch weekly active addresses, DEX volumes, and effective fees across these networks, with Bases traction and Polygons activity spike as the key tells from the reports above.
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