Bitmine's $8.9B Ethereum Loss: ETH Falls Below $1,800

Bitmine Immersion Technologies (BMNR), the largest corporate holder of ether, is sitting on an estimated $8.9 billion in unrealized losses after ETH fell back below $1,800 in the latest crypto pullback. Shares of the Tom Lee-chaired company slipped another 5.9% on Wednesday, dropping below $17 and extending their decline to 28% since early May. The stock is now trading at its weakest level since Bitmine announced its pivot to an Ethereum treasury strategy in May 2025.

The drawdown hits at the worst possible moment for the digital asset treasury narrative. Ether has now lost more than 20% since early May, when Lee — Fundstrat co-founder and Bitmine chairman — argued that the market's "mini crypto winter" had likely ended and a new "crypto spring" was beginning. Under his leadership, Bitmine has accumulated more than 5.4 million ETH, roughly 4.5% of Ethereum's circulating supply, in about a year. At current prices that position is worth about $10 billion, but the cost basis is sharply higher.

Why it matters

Bitmine's slide underscores the structural risk of the corporate crypto treasury model pioneered by Michael Saylor's MicroStrategy (MSTR): raise capital through public markets, use the proceeds to accumulate tokens. As crypto prices have weakened, many DAT stocks have drifted below the net asset value of their underlying holdings, and Strategy itself recently disclosed its first bitcoin sale since 2022 — a development that rattled the cohort.

Bitmine's case differs in important ways. The company financed its ETH purchases primarily through equity issuance rather than debt, so it avoids the leverage and interest-payment concerns hitting some peers. Bitmine also generates operating revenue from staking — it has staked more than 4.7 million ETH, roughly 87% of its holdings, and recently estimated annualized staking revenue near $276 million via its MAVAN staking service.

Market impact

The unrealized loss is the headline number, but the equity-financed structure buys Bitmine time. Without debt service obligations, the company can hold the position through the drawdown and earn roughly $276M a year in staking yield on a stash now worth ~$10B.