BMNR vs MSTR: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of August 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. BMNR and MSTR share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined BMNR and MSTR exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

BitMine Immersion Technologies (NYSE: BMNR) began as an immersion-cooling Bitcoin miner operating sites in Pecos, Texas and Trinidad, then executed a sweeping strategic pivot in mid-2025 under new chairman Tom Lee of Fundstrat. The company reoriented around an Ethereum-first treasury strategy, accumulating roughly 5.7 million ETH (worth on the order of $10 billion as of July 2026) and targeting ownership of about 5% of the total ETH supply. It stakes the bulk of that ETH through its proprietary MAVAN (Made in America Validator Network) platform to earn a staking yield of roughly 3%, and it has layered in DeFi strategies and venture-style equity stakes. BitMine has been added to the Russell 1000 and named to the Fortune Crypto 100.

Full BMNR guide

Strategy Inc, which traded as MicroStrategy until an August 2025 rebrand, began as an enterprise business-intelligence and analytics software vendor and still sells that software (now branded around its AI-powered Strategy One platform). Since 2020 the company has pivoted almost entirely toward accumulating bitcoin as its primary treasury reserve asset, funding purchases through convertible notes, several classes of preferred stock (STRK, STRF, STRD, STRC) and at-the-market common equity sales. As of early July 2026 it held roughly 843,000 to 847,000 BTC at an average cost near $66,000 per coin, making it the largest corporate bitcoin holder in the world.

Full MSTR guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• BMNR drivers: Scale of the ETH treasury; Staking yield via MAVAN.
• MSTR drivers: Leveraged bitcoin exposure; Capital-markets machine.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: The dominant risk is Ethereum price itself: a sharp ETH drawdown would slash the value of the treasury and, because the equity carries a premium or discount, the stock can fall faster than ETH. For MSTR, the overwhelming risk is bitcoin price: a large drawdown in BTC would hit both the asset value and the leveraged equity far harder, and the company reported a roughly $14.5 billion non-cash unrealized bitcoin loss in Q1 2026.

Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick BMNR if you believe its drivers more; MSTR if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the BMNR and MSTR guides.

BMNR. BMNR is valued primarily off its crypto holdings rather than a conventional earnings multiple, and shares trade at a shifting premium or discount (mNAV) to the ETH and cash they represent. As of July 2026 the market cap (~$8.85 billion) sits near or below the stated crypto-plus-cash holdings, reflecting how much of the story is the underlying ETH. Reported net income swings with mark-to-market crypto values, so it is not comparable to recurring operating profit at a normal company.

MSTR. Traditional earnings multiples do not describe Strategy well because quarterly results are dominated by non-cash bitcoin mark-to-market swings, such as the roughly $14.5 billion unrealized loss reported in Q1 2026. Investors instead watch the market value of its bitcoin, the mNAV premium or discount to those coins, and the size of the debt and preferred obligations. In mid-2026 the premium compressed toward or below the value of the underlying bitcoin.

Headline figures (approximate, JULY 2026): BMNR shows share price ~$15.55, market cap ~$8.85 billion, eth held ~5.7 million ETH (~4.8% of supply), total crypto + cash holdings ~$9.8 billion to ~$11 billion; MSTR shows bitcoin held ~843,000-847,000 BTC, avg btc cost basis ~$66,000 per coin (~$33.1B total), btc holdings value ~$54B, software revenue (quarterly) ~$124M (Q1 2026, +12% YoY).

BMNR and MSTR are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined BMNR and MSTR exposure against your real portfolio. It is not an investment adviser.