The irreversible loss of Ether (ETH) due to user errors and smart contract bugs has reached a concerning milestone, with estimates suggesting that 913,111 ETH, representing approximately 0.76% of the current circulating supply, is now permanently inaccessible.
This figure, equivalent to over $3.43 billion at current market prices, highlights the inherent risks associated with decentralized technologies and the critical importance of security and user awareness.
Conor Grogan, Head of Product at Coinbase, brought attention to this issue in a recent analysis, highlighting the significant increase in lost ETH since March 2023.
Furthermore, a previous report indicated that 636,000 ETH had been lost at that time, marking a 44% surge in unrecoverable ETH within a relatively short period. While the primary sources of loss remain consistent.
$3.4B in Ether Lost Forever
The major incidents contributing to this loss include the infamous Parity Multisig bug, which resulted in the loss of 306,000 ETH belonging to the Web3 Foundation.
Additionally, the collapse of QuadrigaCX locked 60,000 ETH in a faulty contract, and the Akutars NFT minting debacle caused 11,500 ETH to vanish due to a flawed smart contract. Minor increases, like transfers to burn addresses, also contributed to the overall loss.
Additionally, Grogan’s $3.4 billion estimate serves as a conservative lower bound. His calculation primarily focuses on ETH verifiably locked forever, excluding lost private keys or inaccessible genesis wallets.
While the loss of such a significant amount of ETH is undoubtedly concerning, it is crucial to consider the broader context of Ethereum’s supply dynamics.
Unlike Bitcoin, which has a fixed maximum supply of 21 million coins, ETH does not have a hard cap. However, two significant upgrades to the Ethereum network—Ethereum Improvement Proposal 1559 (EIP-1559) and The Merge—have significantly impacted the issuance and supply of ETH.
Ethereum Supply Dramatic Growth
EIP-1559, implemented in August 2021, introduced a mechanism for burning a portion of transaction fees, effectively reducing the circulating supply over time. The Merge, completed in September 2022, transitioned Ethereum from a proof-of-work (PoW) to a proof-of-stake (PoS) consensus mechanism, resulting in a dramatic decrease in new Ether issuance.
Notably, data indicates that Ethereum’s supply experienced steady growth from 2020 to 2022, reaching 120.5 million ETH by September 2022. Following the Merge and the continued burning of ETH through EIP-1559, the supply experienced a slight decline of approximately 0.4% through April 2024. Since then, the supply has resumed a gradual growth trajectory, currently standing at around 120.7 million ETH.
Ephraim Emmanuel | September 17, 2026
Mishael Nwani | September 15, 2026
