BitMine Buys 28,086 ETH for $70M, Treasury Climbs to 4.9% of Ethereum Supply

$70 million in one week. BitMine Immersion Technologies added 28,086 ETH to its corporate treasury over the past seven days, pushing its total holdings to 5.93 million tokens, now valued at approximately $14.79 billion.

The purchase brings BitMine to 4.9% of Ethereum's total circulating supply, within striking distance of the company's stated 5% target. Aggregate reported holdings climbed from $15.6 billion to $15.7 billion week-over-week. ETH was trading at $2,493.50 on Tuesday, up 1.8% in the prior 24 hours against a market cap of roughly $299.5 billion.

Most of BitMine's 5.93 million ETH is staked, generating ongoing yield while the company continues to accumulate. Staking converts the treasury from a passive holding into an active yield position, though it also reduces liquidity. Staked tokens carry unbonding periods that limit how quickly the company could exit if conditions changed. Chairman Tom Lee remains publicly bullish on ETH following the recent price rally, signaling the company views current levels as part of a longer accumulation thesis rather than a short-term trade.

At 4.9% of supply, BitMine is positioning itself alongside the largest ETH holders on record, a cohort that has historically included the Ethereum Foundation, early ecosystem participants, and major custodians like Grayscale. Whether that concentration is a signal of conviction or a risk factor depends on perspective. Bulls read it as a structural bid under the market; skeptics flag that a single entity controlling near 5% of a $300 billion asset introduces real centralization risk and potential for outsized market impact on any forced sale. The staking yield softens the urgency to sell, but it does not eliminate it.

This accumulation pattern echoes the corporate treasury playbook that Strategy pioneered with Bitcoin, adapted now for Ethereum's proof-of-stake architecture. The key difference is the yield layer. Bitcoin treasury holders earn nothing on idle coins, while BitMine's staked ETH generates rewards that compound the position over time. That structural advantage has made ETH an increasingly attractive treasury asset for companies willing to accept the liquidity tradeoff.

BitMine's push toward 5% of supply comes as broader on-chain sentiment is improving. Bitcoin supply in profit is approaching the bear-to-bull threshold at 71%, a historically significant marker that has preceded sustained rallies in prior cycles. If that pattern holds, BitMine's timing could prove well-calibrated. If it does not, the company's illiquid staked position leaves limited room to maneuver.

The 5% target, if reached, would make BitMine one of the most concentrated single-entity holders of any major proof-of-stake asset by percentage of supply. Whether that milestone is a ceiling or a floor for the company's ambitions remains unclear.