Bitmine executes $86M stock buyback under repurchase program

Bitmine Immersion Technologies just dropped $86 million buying back its own stock. The company repurchased approximately 5.5 million shares last week under its board-approved open-ended share repurchase program, a move that signals management believes its stock is undervalued relative to the mountain of Ethereum sitting on its balance sheet.

For a company that holds roughly 5.74 to 5.77 million ETH, or about 4.8% of the entire ETH supply, the math is straightforward. If the market prices your shares below what your crypto treasury is actually worth, you buy them back. It’s the same playbook MicroStrategy popularized with Bitcoin, except Bitmine chose the other blue-chip.

The numbers behind the buyback

The $86 million repurchase is a relatively small bite out of a much larger authorization. Bitmine’s board initially approved a $1 billion share repurchase program in July 2025. By April 2026, that ceiling had quadrupled to $4 billion.

In English: the company has given itself permission to spend up to $4 billion buying its own shares off the open market. The $86 million executed last week represents just over 2% of that total authorization.

Bitmine trades on the NYSE under the ticker BMNR, having uplisted from a smaller exchange in April 2026. The company was subsequently added to the Russell 1000 index in June 2026, a milestone that automatically triggers buying from the hundreds of index funds and ETFs that track Russell benchmarks.

Building the Ethereum empire

The company operates staking infrastructure called MAVAN, which allows it to generate yield on its massive ETH holdings. Bitmine has also invested in Ethereum Foundation-related ventures, deepening its ties to the ecosystem beyond simple token accumulation. The company is led by Tom Lee of Fundstrat, whose bullish crypto calls over the years have made him one of Wall Street’s most recognizable digital asset advocates.

On the capital markets side, Bitmine issued approximately 3 to 3.5 million shares of 9.5% Series A Perpetual Preferred Stock, trading under the ticker BMNP, in June 2026. That preferred offering gives the company another financing tool to fund ETH purchases without diluting common shareholders at unfavorable prices.

What this means for investors

For investors evaluating BMNR, the key question is always the premium or discount to net asset value. When the stock trades below the per-share value of its ETH holdings minus liabilities, buybacks are accretive. Every share repurchased below NAV effectively increases the remaining shareholders’ claim on the underlying Ethereum.

The $4 billion authorization gives management enormous flexibility to keep executing this strategy. With only $86 million deployed so far, there’s substantial dry powder remaining if market conditions create further buying opportunities.

The Russell 1000 inclusion changes the investor base in meaningful ways. Index funds don’t care about your crypto thesis. They buy because you’re in the index. That creates a structural bid for shares that didn’t exist before April 2026, and it gives Bitmine a stability floor that earlier-stage crypto treasury vehicles never had.

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