BitMine Immersion Technologies has sharply increased its Ethereum holdings through an $81 million purchase — the company's largest weekly ETH acquisition since early July. The buy coincides with a roughly 30% rise in Ethereum's price over the past seven days, and BitMine Chairman Tom Lee has suggested the rally could signal an institutional-level move toward ETH.

Institutional Conviction Behind the Accumulation

BitMine, helmed by Tom Lee, co-founder of Fundstrat, has positioned itself as one of the most aggressive corporate purchasers of Ether in 2025. Originally a bitcoin mining and immersion-cooling data-center operator, the company pivoted to an ETH-first treasury strategy after Lee took the chairman role in mid-2025. The newest ETH acquisition confirms a deliberate treasury approach similar to the one MicroStrategy pursued with Bitcoin — the enterprise-software firm began buying Bitcoin as its primary reserve asset in 2020 and became the largest corporate holder of the cryptocurrency — but focused on ETH.

According to on-chain data from blockchain analytics firm Arkham Intelligence, BitMine's ETH holdings rank among the largest corporate Ethereum treasuries in the industry (Source: Arkham Intelligence, YouHodler).

The purchase was highlighted on X:

Tom Lee's Bitmine has bought another $81M worth of Ethereum, marking its largest weekly ETH accumulation since early July. The purchase comes as ETH has surged around 30% over the past week, with Lee suggesting this move could be the beginning of a much larger trend. While many… pic.twitter.com/jm3h1cE42m

— That Martini Guy ₿ (@MartiniGuyYT) August 24, 2026

Why Ethereum Exposure Matters Right Now

The accumulation points to growing corporate buy-in for Ethereum, as more institutional appetite has been detected across the market. That demand has been attributed to an increase in spot ETF inflows, growth in the number of stablecoin transactions settling on blockchain platforms, and a resulting surge in staking yields.

The backdrop for those drivers is well established. Spot Ethereum ETFs began trading in the United States in July 2024, opening a regulated route for institutional ETH exposure. Ethereum is also the network where the largest share of major stablecoins such as USDT and USDC circulates, which ties stablecoin transaction volume to activity on the chain. And since Ethereum shifted to proof-of-stake in September 2022, ETH holders can stake their coins to earn rewards for helping secure the network — a yield-bearing feature that Bitcoin treasury holdings do not offer.

Beyond the Bitcoin Bet

The buildup in Ether purchases reflects a larger movement among publicly traded companies that were initially committed to Bitcoin as their sole cryptocurrency exposure and have gradually been re-entering the market and diversifying their holdings (Source: CNBC).

Companies now included in this group are SharpLink Gaming and Bit Digital, both of which have been adding to their Ethereum balances alongside their Bitcoin holdings. Because Ethereum treasuries sit on a public blockchain, on-chain trackers such as Arkham Intelligence surface further corporate accumulation in near real time, letting observers watch whether the diversification shift widens without waiting on quarterly filings.

This article contains market analysis and price predictions. These are not guarantees. Crypto markets are volatile. Always DYOR. Not financial advice.