Delphi Models Ethereum Proposer Waits; ether.fi ETH Commitment Valued at $3 Billion
The model estimates an expected four-minute wait at 5% eligible proposer weight. ETHGas separately announced a three-year commitment involving about 40% of ether.fi’s then-current ETH holdings.

A Delphi Consulting case study for ETHGas models how long Ethereum institutions may wait for a block proposer that meets their rules, highlighting a supply constraint in scheduled transaction markets.
When eligible proposer-selection weight is 5%, Delphi Consulting’s model estimates an expected wait of four minutes and a 23% chance of an eligible proposer within about one minute. At 40% eligible weight, it estimates an expected wait of about 30 seconds and a 92% chance within one minute.
These are modeled scenarios, not delays measured on the live Ethereum network. The results illustrate how the share of stake that meets an institution’s requirements can affect the chance its transaction is included under a blockspace arrangement. Requirements may cover an institution’s identity, jurisdiction or operating conditions, narrowing which validators can serve it.
Ethereum allows one block proposer per 12-second slot. The protocol selects the proposer pseudo-randomly, weighting selection by validators’ effective balance of Ether (ETH). A marketplace can reserve capacity from participating validators, but it cannot make every proposer satisfy a customer’s rules.
ETHGas describes its marketplace as letting validators pre-sell future block-inclusion rights roughly 10 minutes ahead. ETHGas’s 50-millisecond sub-block design is another part of its work on transaction inclusion.
ETHGas announced April 15 that ether.fi would commit about 40% of its then-current ETH holdings to ETHGas’s High Performance Staking Service for three years. The announcement valued the commitment at $3 billion and said ether.fi also would use ETHGas’s preconfirmation platform exclusively during the term. It made the commitment subject to ongoing performance thresholds and set deployment to begin upon execution.
The 40% figure applied to ether.fi’s holdings, not Ethereum’s total proposer-selection weight. The announced valuation therefore does not measure how much stake meets a particular institution’s requirements.
Delphi prepared the study for ETHGas under a fixed-fee agreement, with payment not contingent on the findings. Its disclosure says the analysis used information provided by ETHGas and reflects Delphi Consulting’s views, not Delphi Digital Research’s. For institutions, the relevant measure is the proposer weight that meets their own eligibility rules and the performance of that stake.