Bitmine is still buying Ethereum, even as staking may make further purchases unnecessary to reach its 5% ownership target.
The Nasdaq-listed treasury company disclosed that it acquired 53,501 ETH in the week through Aug. 30, taking its holdings to 5.9 million tokens. More than 5.06 million ETH were already staked at an annualized seven-day yield of 2.67%.
The buying appears to have continued almost immediately.
On Sept. 1, blockchain analysis platform Lookonchain said wallets linked to Bitmine appeared to acquire another 51,000 ETH worth about $126 million from FalconX and BitGo. Bitmine had not formally confirmed that transaction in its latest corporate disclosure.
If the on-chain attribution is correct and the transfer represents an incremental purchase, Bitmine would hold roughly 5.95 million ETH. That would leave it considerably closer to its publicly stated goal of owning 5% of Ethereum.
Yet the size of the company’s existing position means buying may no longer be the only way to get there.
Bitmine had 5,067,309 ETH staked as of Aug. 30. Holding that balance and the disclosed yield constant would produce roughly 135,000 ETH in staking rewards over a modeled year.
At that scale, staking income itself can become a major acquisition engine.
Staking can finish what buying started
Using Bitmine’s own benchmark of 120.7 million ETH in circulation, owning 5% would require about 6.035 million tokens.
Against its officially disclosed 5.9 million ETH balance, Bitmine was about 134,000 ETH short, almost exactly equal to one year of modeled staking rewards. On that snapshot, the company would need to retain nearly 99% of those rewards to finish above 5% within a year if Ethereum supply stayed flat.
The reported Sept. 1 purchase would change that math substantially.
Adding another 51,000 ETH would reduce the gap to about 83,000 tokens using the same 120.7 million supply benchmark. Under the same fixed-yield, flat-supply assumptions, roughly 61% of one year’s modeled staking rewards would be enough to close it.
That illustrates why Bitmine can continue buying aggressively while becoming progressively less dependent on those purchases.
However, Ethereum’s expanding supply complicates that path because every increase in the network’s token count raises the amount Bitmine must hold to preserve a 5% share.
Etherscan showed roughly 122.02 million ETH outstanding on Sept. 5. Holding Bitmine’s Aug. 30 balance constant against that larger denominator would put its illustrative ownership share around 4.84% and widen the gap to nearly 200,000 ETH.
Over two years, relatively small supply changes have a large effect. Using the official Aug. 30 holdings and staking balance, Bitmine would need to retain about 74% of modeled rewards if ETH supply stayed flat.
At 0.5% annual supply growth, the requirement rises to roughly 96.5%. At 1% growth, even retaining every modeled reward would fall short without additional purchases.
Assumed annual net ETH supply changeReward retention needed to reach 5% after two years−0.5%About 51.4%0%About 73.9%+0.5%About 96.5%+1.0%About 119.2%; not achievable under these assumptions.
A lower staking yield would tighten the constraint further. At 2%, modeled annual rewards fall to roughly 101,000 ETH, pushing the flat-supply two-year retention threshold to almost 99%.
The harder question is how much ETH Bitmine keeps
For Bitmine, the path to 5% therefore increasingly becomes a capital-allocation decision rather than simply an acquisition target.
The company has disclosed that it periodically converts ETH-denominated staking rewards into US dollars and has not committed to a fixed percentage to keep on its balance sheet.
Every reward retained increases its Ethereum holdings without requiring another market purchase. Every reward converted into cash can instead support operating expenses and shareholder commitments.
Bitmine’s management agreement with Ethereum Tower includes reward-linked compensation as well as infrastructure and custody costs. The company has also declared 17 cash dividends on its BMNP preferred stock, with scheduled payments running through late December.
Its quarterly filing warns that changes in ETH prices and staking yields can affect its ability to fund operations and preferred dividends. Because staking rewards arrive in ETH, meeting those obligations can require selling tokens that would otherwise push the treasury closer to 5%.
That changes what investors should watch next. The key disclosure is no longer just how much ETH Bitmine buys, but how much of the ETH it earns the company actually keeps.
