The economics of Ethereum’s Pectra upgrade priority fee market redesign

Blob capacity and the rollup fee structure

The Pectra upgrade combines the Prague execution layer and Electra consensus layer updates. It follows the Dencun upgrade of March 2024. Developers used the Holesky and Sepolia testnets to prepare, though finality issues on Holesky in February 2025 required the introduction of the Hoodi testnet. The rollup ecosystem depends on blobs to publish transaction data. EIP-7691 expands this capacity by increasing the target blob count from 3 to 6 and the maximum from 6 to 9. EIP-7623 raises the price of data-heavy transactions that do little computation to push rollups toward cheaper blobs. EIP-7840 moves blob targets and limits into client configuration files. EIP-7549 moves the committee index outside the signed attestation to let identical votes aggregate more efficiently. EIP-2537 adds precompiled contracts for BLS12-381 curve operations to lower gas costs for zero-knowledge rollups and bridges. Ethereum developers aim to increase the network transaction capacity by pushing the gas limit above 100 million. As of July 21, 2025, the gas limit reached 37.3 million, and over 47% of staked validators supported a 45 million target. This allows Ethereum to process nearly 18 transactions per second, an increase from the 15 transactions per second seen earlier this year. I find this redesign of the priority fee market effective for L2 scaling.

EIP Number	Technical Name	Primary Function
EIP-7691	Blob capacity expansion	Increases blob target and maximum
EIP-7623	Calldata cost adjustment	Raises costs for non-computational data
EIP-7702	Account abstraction	Enables smart contract functionality for EOAs
EIP-7251	Validator stake increase	Raises MaxEB to 2,048 ETH
EIP-6110	Execution layer deposits	Moves validator deposits to execution layer
EIP-7002	Triggerable withdrawals	Allows direct withdrawal via credentials
EIP-2537	Cryptographic efficiency	Adds BLS12-381 precompiles

Account abstraction and the security trade-off

EIP-7702 allows EOAs to borrow contract logic for a single transaction. This enables batching and gas sponsorship. Users pay gas in USDC or DAI. By September 2026, 27 million Ethereum accounts used a delegation. You probably already know how account abstraction works, but the security implications of this specific implementation are different. I find the security vulnerabilities concerning. A USENIX Security 2026 study of 3.66 million transactions across seven chains linked 63% of them to attacker contracts and confirmed $2.36 million in losses. Wintermute found that 97% of mainnet delegations pointed to sweeper contracts nicknamed CrimeEnjoyor. Most of these losses did not stem from a flaw in EIP-7702 itself. They began with a phished signature or leaked seed phrase. EIP-2537 provides precompiled contracts for BLS12-381, which reduces the gas cost for verifying signatures used by zero-knowledge rollups and bridges. This addition helps privacy and proof systems work more efficiently. EIP-7692 also improves the EVM Object Format to make smart contract deployment and execution more cost-effective.

Validator efficiency improvements

EIP-7251 increases the maximum effective balance from 32 ETH to 2,048 ETH. This allows validators to consolidate stakes and reduces the total number of validators needed. Because a validator’s chance of proposing a block depends on being picked from the shuffled list and passing an eligibility check, larger balances change proposer selection dynamics. EIP-6110 brings validator deposits onto the execution layer. This change reduces deposit processing time from nine hours to 13 minutes. EIP-7002 lets the withdrawal address trigger full or partial exits, giving stakers full control without depending on operators. EIP-2935 stores 8,191 block hashes in a system contract for stateless clients and cross-chain provers. EIP-7549 moves the committee index outside the signed attestation to let identical votes aggregate more efficiently. Staking remains a core part of the network, with over 35 million ETH staked in 2026. I think the validator efficiency gains are the best part.

The L2 value leak problem

Ethereum earns less from every transaction. Gas prices hit 0.5 gwei in early 2026 and 0.15 gwei in some periods. L2 networks like Arbitrum, Optimism, and Base process millions of transactions daily at negligible cost, but the economic value stays in the L2 ecosystem instead of flowing to the L1. Arbitrum One holds $18.5 billion in TVL and captures 40% of the market share among rollups. Total value locked on Ethereum exceeds $61.8 billion. Stablecoins on Ethereum totaled $162 billion in March 2026. I observe a value leak where economic value stays in the L2 ecosystem instead of flowing to the L1. USDT recorded $7 billion in net outflows on Ethereum during Q1 2026. In April 2026, stablecoin transfer volume on Ethereum plunged 42.6% in a single week even as raw transaction counts rose 41%. When burn rates fall below new issuance, supply expands. In 2026, annualized supply reduction hovered around -0.3% to -0.8% depending on activity. Will the L1 fee revenue ever return to pre-scaling levels?