BitMine acquires $135M in Ethereum, signaling institutional interest in ETH treasury strategies

BitMine Immersion Technologies just dropped $135 million on Ethereum in a single week. The company, led by Tom Lee, scooped up 76,881 ETH at an average cost basis of around $3,450 per token, pushing its total holdings to a staggering 5,620,754 ETH.

That’s not a typo. BitMine now controls roughly 4.65% of Ethereum’s entire circulating supply, a position valued somewhere between $10B and $10.4B. The company is 93% of the way toward its stated goal of owning 5% of all ETH in existence.

From Bitcoin miner to Ethereum whale

BitMine, which trades under the ticker BMNR, has undergone one of the more dramatic corporate pivots in recent crypto history. What started as a traditional Bitcoin mining operation has transformed into something closer to a digital asset treasury company, with Ethereum as the centerpiece.

The latest acquisition, completed in the week leading up to June 15, was partially funded through a $274 million Series A preferred stock offering. That preferred equity carries a 9.5% annualized dividend and will trade on the NYSE under the ticker BMNP.

Over 83% of the company’s Ethereum holdings, roughly 4.72 million ETH, are currently staked. Those staked assets are projected to generate between $219M and $226M in annualized rewards. If BitMine were to stake its entire position, that number could climb to $270 million per year.

The MicroStrategy playbook, but for Ethereum

The parallels to MicroStrategy’s Bitcoin accumulation strategy are impossible to ignore. Michael Saylor’s company pioneered the idea of a publicly traded firm using its balance sheet and creative financing to stockpile a single cryptocurrency. BitMine appears to be running the same playbook, just with a different token and an added yield component.

Bitcoin doesn’t offer staking rewards. Ethereum does. The projected $219M to $226M in annual staking rewards provides a cash flow cushion that pure Bitcoin treasury companies simply don’t have.

Tom Lee has framed the aggressive buying pace as a response to current price weakness in Ethereum, arguing that the token’s underlying fundamentals remain intact despite short-term volatility. The $3,450 average cost basis on this latest purchase suggests BitMine views current prices as a buying opportunity rather than a warning sign.

The preferred stock offering is equally telling. A $274 million raise with a 9.5% dividend signals that there’s meaningful institutional appetite for crypto-adjacent yield products. Investors are essentially buying exposure to Ethereum’s staking returns through a traditional equity wrapper, complete with NYSE listing and dividend payments.

What this means for investors

BitMine’s accumulation has reached a scale that could materially affect Ethereum’s market dynamics. Controlling nearly 5% of circulating supply means the company is now one of the largest single holders of ETH in existence. With 83% of those holdings locked in staking, the actual freely tradable ETH is reduced even further.

There’s also the question of whether BitMine’s staking reward projections are sustainable. Ethereum’s staking yields fluctuate based on the total amount of ETH staked across the network. As more capital flows into staking, individual yields compress. BitMine’s projected $219M to $226M in annual rewards assumes current staking conditions persist.

If BMNP trades successfully on the NYSE, it could open the door for other companies to raise capital through similar structures, allowing investors who might never buy ETH directly to gain exposure through a dividend-paying preferred stock backed by staking yields.