BitMine Nears 5% ETH Cap, Plans to End Buying
BitMine is nearing its self-imposed cap of 5% of Ethereum’s total supply and says it will stop buying ETH once it reaches that level. As of October 4, the company held 6,016,414 ETH—about 4.9% of the 122.1 million supply cited in its disclosure—with roughly 88,586 ETH left before the cap. At an assumed price of $2,500 per ETH, those purchases would cost about $221 million; BitMine reported $643 million in cash and marketable securities.
BitMine bought 15,112 ETH in the latest reported week and says it has bought ETH every week since beginning its treasury strategy on June 30, 2025. Based on its recent pace, it could reach the cap around mid-November, but that is an estimate, not a company commitment. Lookonchain later reported a suspected 12,500 ETH purchase that BitMine has not confirmed in an official holdings update. The company has not disclosed what it will do after market purchases stop.
BitMine has staked about 5.07 million ETH, or 84% of its holdings. It estimates annualized staking revenue of $363 million; this is a company projection, not guaranteed income. Staking rewards could continue adding to BitMine’s ETH holdings after purchases end, potentially pushing it above the 5% threshold. On October 8, BitMine shares closed down 5.9% at $24.19, an estimated 8.8% discount to net asset value, while ETH traded near $2,539, down 1.5% over 24 hours. The approaching end of BitMine’s regular buying may remove a source of ETH demand, while its large staked position remains relevant to supply and staking-market dynamics.
Bearish
The news is mildly bearish for ETH because BitMine has been a recurring buyer and says it will stop accumulating once its holdings reach 5% of supply. Ending those purchases could remove a source of incremental demand, which traders may weigh more heavily as the cap approaches. However, the remaining estimated purchases—about 88,586 ETH based on the October 4 holdings—are small relative to total ETH supply, and the timing is uncertain. BitMine’s staking of about 5.07 million ETH may keep a substantial amount tied up, while staking rewards could add to its holdings, although neither factor guarantees reduced market supply or continued buying. In the short term, traders may react to purchase updates, ETH flows and broader market conditions; the suspected additional purchase remains unconfirmed. Over the longer term, the end of treasury accumulation could reduce a recurring demand catalyst, but staking activity and the company’s handling of rewards will shape how significant that effect is. Overall, the change points to a modest downside risk rather than a decisive signal for ETH’s price.