Which L2s saw lower fees?

TLDR

Arbitrum (ARB), ethereum/">Optimism (OP), and Base saw lower Layer 2 fees this week as Ethereum increased blob capacity for rollup data, reducing posting costs for L2s via the upgrade.

1. Many Ethereum L2s now charge under $0.01%%CKPROTECTED2%% per transaction, improving affordability for complex apps per recent coverage.
2. Lower fees compressed L2 and base-layer fee revenue, a trade-off highlighted in recent analyses of earnings and gas trends.
3. Activity is concentrating on Base, Arbitrum, and Optimism, while smaller rollups lag despite fee cuts per ecosystem reviews.

Deep Dive

1. Blob Upgrade Impact

Ethereum raised blob capacity for rollups this week, letting L2s post more data per block. This reduces a core cost component for L2 transactions, which is why Arbitrum (ARB), Optimism (OP), and Base saw fees fall as flagged in the weeks upgrade schedule.

2. Sub-$0.01 L2 Fees

Coverage shows Ethereums L2 transaction fees have fallen toward $0.01%%CKPROTECTED3%% or below for many rollups, aided by recent throughput improvements and more efficient data handling on L2s noted in comparative reporting. Broader summaries also emphasize that wider fee declines come with lower aggregate fee revenue for both L2s and Ethereum itself in recent reviews.

3. Concentration and Trade-Offs

Market share and usage are consolidating around Base, Arbitrum, and Optimism, with smaller rollups seeing weaker activity despite fee reductions per ecosystem analyses. Fee cuts often trigger fee wars, improving affordability but compressing margins across the stack, which can challenge smaller L2s.

Conclusion

Lower L2 fees this week are most evident on Arbitrum, Optimism, and Base, driven by Ethereums blob-capacity changes. The environment is cheaper and friendlier to everyday transactions, but it also compresses network fee revenue, reinforcing a shift toward scale and activity on the largest L2s.