Bitmine has significantly expanded its Ethereum treasury strategy, staking approximately $289.4 million worth of ETH over the past week, according to blockchain analytics platform Arkham. The allocation brings the company's staked position to an estimated 4.2% of Ethereum's total circulating supply — a figure that carries particular weight given Ethereum's total supply of roughly 120 million ETH.

During the same period, Bitmine also purchased an additional $14.25 million worth of ETH. Combined, the company's total holdings now represent approximately 4.8% of Ethereum's supply, placing its treasury among the largest corporate ETH positions and mirroring the kind of aggressive crypto treasury accumulation that companies such as MicroStrategy have pursued with Bitcoin.

Treasury Strategy and Market Context

Arkham's data indicates that Bitmine — associated with Fundstrat co-founder Tom Lee — has been steadily building its Ethereum position as institutional interest in the asset class develops. The latest moves reflect a dual approach: increasing direct spot holdings while allocating a substantial portion into staking to generate rewards and reduce the amount of ETH immediately available for trading. Ethereum staking yields have generally ranged between 3% and 5% annually.

Staking, however, does not eliminate exposure to risks such as price volatility, validator penalties, and changing reward conditions. Ethereum's broader staking market has expanded considerably since the Shanghai upgrade in April 2023 enabled stakers to withdraw, with recent network data showing more than 41 million ETH locked in staking — roughly 34% of total supply.

According to a post on X, Tom Lee's Bitmine staked $289.4 million worth of ETH over the past week:

Tom Lee's (@fundstrat) Bitmine (@BitMNR) staked $289.4 million worth of ethereum over the past week, according to Arkham. The company now has 4.2% of Ethereum's supply staked. Bitmine also purchased another $14.25 million… pic.twitter.com/X99Sbrd3iN

— BSCN (@BSCNews), August 12, 2026

Broader Institutional Accumulation Trend

Bitmine's activity is part of a wider trend of companies building Ethereum treasury positions. SharpLink has also accumulated substantial ETH holdings, reinforcing the growing corporate interest around the asset. Other firms, including Anchorage Digital, have made significant staking moves. While Bitcoin-focused corporate treasury strategies have attracted the most attention, the emergence of large-scale Ethereum positions marks a shift toward diversification beyond store-of-value holdings into yield-generating assets.

Bitmine's growing concentration does raise questions about supply distribution and validator diversity, though a 4.2% staked share remains far below a level that could independently influence Ethereum's consensus mechanism.

The expansion of institutional staking comes as Ethereum attracts attention through tokenization initiatives, stablecoin activity, and broader network growth. Institutional participation can affect available market supply dynamics without altering Ethereum's underlying consensus structure or development roadmap.

Bitmine's additional $14.25 million purchase indicates its accumulation strategy remains active alongside staking decisions. The company's total holdings of 4.8% of supply underscore the scale at which corporate entities are now positioning themselves in Ethereum.