Bitmine Adds $81M in ETH, Nears 5% Supply Threshold as Ethereum Outpaces Bitcoin

Ethereum’s float is thinning—and one buyer is driving it. Bitmine Immersion Technologies added another 32,447 ETH last week, roughly $81 million, pushing its stash to 5,847,611 ETH as of August 23—about $15 billion at the time. With total ETH supply around 120.7 million, Bitmine now controls about 4.8% of circulating tokens and is roughly 187,000 ETH short of its stated 5% objective, a line that would sit near 6.04 million ETH.

The timing matters. ETH has surged 31.5% over the past week, beating Bitcoin’s nearly 24% advance, and is trading just under $2,500 after a ~3% daily gain. Prediction markets have flipped with the tape: on Myriad, traders now assign 64% odds that ETH touches $3,000 before falling to $1,500, a reversal from less than a week ago when bearish odds ran as high as 74%. Bitmine is leaning into that momentum while also removing liquidity from spot markets.

Here’s the core dynamic to watch: staking-driven supply concentration. Bitmine says 87% of its ETH—5,067,309 coins—is staked, with a projected $330 million in annual staking revenue. That locks the majority of its position outside active order books, amplifying upside reflexivity when demand spikes and tightening the free float. It also concentrates validator responsibilities in a single corporate operator, which, while not conferring transaction control or protocol governance, increases correlated operational risk (think client bugs, slashing events, cloud outages) that can ripple through staking yields and validator performance. The signal to other treasuries and funds is straightforward: staking turns a volatile asset into a cash-flowing one, but your risk becomes more operational, regulatory, and financing-driven.

Bitmine’s accumulation has been steady and public. It crossed roughly 1% of ETH supply last August, 2% by September, reached 4.66 million ETH in March 2026, 5.2 million in May, and 5.79 million by late July. Leadership previously suggested slowing purchases to avoid hitting the 5% line too fast; buys did continue, albeit unevenly. Tom Lee highlighted that ETH’s >30% weekly pop is the largest since May 2025 (and before that, July 2021), moves that have often preceded broader advances. He cites easier financial conditions, friendlier signals from the White House on crypto, and Treasury buying of long-dated bonds as catalysts for rising risk appetite.

Crossing 5% is a psychological milestone, not a protocol switch. It neither alters Ethereum’s rules nor grants Bitmine control over upgrades or network decisions. For shareholders, though, the math cuts both ways. A fatter staked base can compound returns if ETH appreciates and network activity lifts rewards. The flip side is sharper exposure to drawdowns, custody or validator failures, financing costs tied to continued accumulation, and shifting regulatory regimes that could re-rate staking economics.

The market tends to reward decisive positioning during regime shifts. Bitmine is pressing that edge by converting price strength into deeper, yield-bearing ownership and by parking most of it in validators. If the macro tailwinds Lee references persist, the combination of reduced tradable float and improving sentiment can extend, at least until the cost of concentration—operational resilience, client diversity, and policy optics—commands a higher premium.