Bitmine Bought $19.6M More ETH and 4.5M Shares-Now It Holds 4.8% of All Ether

Bitmine's ETH Stockpile and Buybacks Are Converging

Bitmine is no longer just another ETH holder. It controls 5,797,813 ETH, or 4.8% of the ETH supply based on 120.7 million ETH, and is 96% of the way towards its 5% target. At this scale, each additional purchase matters more because the remaining float is smaller.

Last week, that tightening showed up on both sides of the capital structure. Bitmine acquired 10,399 ETH and repurchased 4.5 million common shares under its $4 billion repurchase program. Its total crypto and cash holdings also reached $11.3 billion. More ETH is being accumulated while the number of BMNR shares floating in the market is falling.

That matters because much of the stack is not idle. Bitmine has 4,917,189 ETH staked, and management says those holdings are projected to generate $247 million annually in staking revenue. For investors, the implication is straightforward: if ETH holds up, BMNR is becoming less of a passive mirror and more of a scarcity-driven setup.

ETH Outperformance May Now Be Translating Into BMNR Momentum

July's ETH surge strengthened the signal

July was not a mild outperformance. ETH outperformed the Nasdaq 100 by 2,500 basis points, the largest such gap since July 2025. That does not guarantee a rerating, but it does make the case stronger that BMNR should trade on more than a simple one-to-one reflection of ETH's price.

Bitmine's own historical framing supports that idea. Management says sizable outperformance of ETH vs. QQQ has typically been followed by Bitmine shares outperforming ETH over the following month. The core idea is simple: when the underlying asset is already gaining attention, the treasury vehicle can rerate faster if investors start assigning it a better multiple.

Why BMNR could reprice faster than ETH

There are two direct drivers. First, demand is still showing up. Bitmine says it acquired 10,399 ETH last week and has been buying ETH on a weekly basis since launching its treasury strategy. Second, the equity side is tightening at the same time. The company repurchased 4.5 million shares last week, bringing total common shares repurchased to more than 16 million.

That combination changes the setup. If ETH is strong and the share count is falling, each additional dollar of stock demand has more work to do. The market is no longer asking only what ETH is worth; it is also asking what BMNR should trade at versus NAV when float is shrinking.

The bear case

The main bearish argument is still valid: treasury stocks can lag the underlying asset if investors focus on management risk, execution risk, or a persistent discount. Recent flow data alone does not settle that debate.

Still, liquidity is not the problem. BMNR recorded average daily dollar volume of $698 million over the past five days, which suggests the stock has enough trading activity for valuation gaps to close relatively quickly if sentiment shifts.

What to watch now

• Whether ETH strength extends beyond July's spike
• Whether buybacks continue to reduce float
• Whether BMNR's trading multiple versus ETH moves higher

If those elements line up, the case for stock outperformance becomes more than a narrative.

ETH Support and Remaining Dry Powder Will Decide What Happens Next

ETH price support is the near-term signpost

Near term, the story turns into a support test. ETH has declined below $1,900 and is testing $1,850 support. If that level breaks, the next area to watch is around $1,809. A hold at $1,850 keeps the tighter supply setup intact; a sharper move lower shifts the focus from acceleration to absorption.

The bull case still rests on scarcity. Bitmine already owns 4.8% of the ETH supply and is 96% of the way towards its 5% target. As the company gets closer to that benchmark, each new ETH purchase matters more because less supply is available.

The share buyback still supports the setup

Equity flow is the other key piece. Bitmine says it has repurchased 16.1 million shares since July 1 under its $4 billion repurchase plan. That helps keep the stock side tight even if ETH consolidates rather than making a fresh breakout.

The practical read is simple: the tightening thesis remains intact only while ETH holds support. If that floor breaks, the setup does not disappear, but it likely becomes slower and more selective.