Ethereum Blobs and the Economics of Rollups After Dencun
Summary
This report reviews the first 150 days of Ethereum blob use after the Dencun upgrade and explains how EIP-4844 gives rollups a separate, temporary data-storage market. It describes blob capacity and fees, how blob-carrying transactions differ from calldata transactions, and how the change affects rollup costs and margins.
The analysis reports blob purchases, costs, capacity utilization, and operating expenses for selected rollups, comparing post-upgrade results with the preceding 150 days. It finds substantially lower rollup operating costs and improved margins, alongside increased L2 activity and higher transaction failure rates among high-volume addresses. Ethereum itself generated less fee revenue and burned less ETH after the upgrade. These findings are period-specific and based on a partial report excerpt; the comparison does not isolate Dencun from other market or network changes, and its margin estimates use selected rollups as proxies for broader categories.
Key ideas
- EIP-4844 introduced a blob fee market separate from Ethereum’s ordinary transaction fee market.
- Blobs temporarily hold rollup data and are priced at fixed capacity, even when rollups leave some space unused.
- The report finds that rollup operating costs declined and estimated margins improved after Dencun.
- L2 transaction counts rose, while failures were concentrated among high-activity addresses.
- Ethereum fee revenue and ETH burn were lower during the measured post-upgrade period.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.