The State of Ethereum Blobs and Blob Market Post-Pectra – Galaxy
Ethereum’s recent Pectra upgrade, which went live on May 7, 2025, included EIP-7691, increasing the target and maximum blobs per block from 3/6 to 6/9 respectively. This raised the daily blob data capacity from approximately 5.5GB to 8.15GB, impacting the blob market, rollups, and validators. Post-Pectra, daily blob purchases by rollups rose to about 25,600, yet the average blobs per block remain below the new target, making blob costs virtually free for the first time since mid-April 2025. Consequently, the ETH burned from rollup data posting has significantly decreased.
However, the increased blob usage has raised the data storage requirement for consensus layer nodes to an estimated 44.6GB. Rollups, particularly Base, have seen improved profit margins due to lower blob costs, while transaction costs on some top rollups have remained stable or slightly increased. Overall, Pectra aims to enhance data availability for rollups on Ethereum.
