Key Takeaways:
BitMine Immersion Technologies has transformed from a Bitcoin miner into the world's largest corporate Ethereum treasury, holding 5.78 million ETH worth $10.8 billion — equal to 4.8% of the total circulating supply.
BitMine ($BMNR) now holds 5,777,468 ETH as of July 19, according to a company filing, making it the second-largest corporate digital asset treasury globally behind Strategy's Bitcoin holdings. The Norwalk, Connecticut-based company added 7,430 ETH in the past week alone, though that pace slowed as it redirected $86 million toward share repurchases. Chairman Tom Lee said the company has bought ETH every week since launching its treasury strategy on June 30, 2025.
"Bitmine repurchased approximately 5.5 million shares of common stock in the past week at an average price of $15.6156," Lee said in the statement. "We view the purchase of our common shares as accretive to shareholder value." The buyback is part of a previously authorized $4 billion repurchase program. BMNR shares closed at $15.79 on Friday, down 4.82% from the prior session, and remain 78% below their all-time high of $71.74.
The company has staked 4,917,189 ETH — roughly 85% of its holdings — through its MAVAN validator platform and staking partners, representing $9.2 billion at current prices. BitMine's staking operations generated a 2.67% seven-day annualized yield, translating to projected annualized staking revenue of $247 million, rising to $290 million once the full treasury is staked. In its fiscal third quarter ended May 31, staking and validation generated $45.7 million, equal to 98% of total quarterly revenue of $46.5 million.
The pivot from Bitcoin mining to an Ethereum-heavy balance sheet carries structural risk. ETH trades at $1,871.39, roughly 62% below its all-time high of $4,946.05, and BMNR stock has fallen 51% in the first half of 2026 alone. Riley lowered its price target to $25 from $33 on July 16, the same day BitMine disclosed its latest ETH purchase. The company also raised $273.8 million through a 9.5% perpetual preferred stock offering earlier this year, adding fixed-cost capital to a balance sheet already heavily exposed to ETH price swings.
Unlike Bitcoin treasury companies that rely solely on price appreciation, BitMine generates native yield through Ethereum's proof-of-stake mechanism. The MAVAN platform, launched in 2026, was originally built for BitMine's own holdings but is expected to expand to serve institutional investors and custodians seeking staking infrastructure.
The staking yield — currently 2.67% annualized — turns a portion of the treasury into recurring revenue. Standard Chartered analyst Geoffrey Kendrick has suggested that Ethereum treasury firms could eventually trade at higher valuations than Bitcoin treasuries because of that built-in income stream. However, the yield floats with network conditions and ETH price, and the company's 85% staking ratio means most of its holdings are subject to validator slashing risk and lock-up periods.
BitMine's decision to slow ETH purchases and redirect capital toward share repurchases offers a window into management's capital allocation priorities. The 5.5 million shares bought at an average of $15.6156 suggest the company views its stock as undervalued relative to the net asset value of its crypto holdings and staking business.
The company's broader portfolio includes 207 bitcoin, a $180 million stake in Beast Industries, a $58 million stake in Eightco Holdings (NASDAQ: ORBS), and $385 million in cash and marketable securities. BitMine was added to the Russell 1000 Large-Cap index on June 26, 2026, and its Series A Preferred Stock trades on the NYSE under the symbol BMNP.
The dual strategy of accumulating ETH while reducing share count gives investors a leveraged bet on Ethereum with a shrinking equity base. Whether that structure creates value depends on ETH's price trajectory, staking yields, and the market's willingness to assign a premium to a publicly traded ETH proxy with recurring staking income.
This article is for informational purposes only and does not constitute investment advice.
