BMNR vs COIN: 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.

Reading it: BMNR is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.

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 COIN 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 COIN 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

Coinbase (COIN) is the largest US-based cryptocurrency exchange. It lets retail and institutional customers buy, sell, store, and stake crypto assets, and it earns most of its money from transaction fees on that trading activity. Beyond the consumer exchange, Coinbase runs Coinbase Prime for institutions, a custody business, a USDC stablecoin partnership with Circle that generates interest income, and subscription and services revenue including staking and Coinbase One. It has expanded into derivatives, an international exchange, and Base, its own layer-2 blockchain. Founded in 2012 and headquartered in the US, Coinbase went public in 2021 and is widely treated as a regulated, publicly traded proxy for crypto adoption. Its results are highly sensitive to crypto prices and trading volumes, which makes revenue swing sharply between bull and bear markets.

Full COIN 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.
• COIN drivers: Regulated crypto on-ramp; Subscription and services growth.

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 COIN, coinbase remains highly dependent on crypto prices and trading volumes; a prolonged bear market can sharply cut transaction revenue.

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; COIN 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 COIN 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.

COIN. Coinbase's valuation is difficult to anchor with a normal multiple because earnings swing dramatically with crypto prices and volume. The stock often trades on sentiment toward crypto adoption rather than trailing fundamentals. Bull markets can produce very high profits and a low apparent multiple, while bear markets can flip the company to losses. Figures are approximate and move sharply; verify current numbers before relying on them.

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; COIN shows revenue (ttm) ~$6 billion (varies widely with crypto cycle), transaction revenue share ~half of total, highly cyclical, subscription and services revenue ~$2 to 3 billion run rate, more recurring, net income swings between large profits and losses by cycle.

BMNR and COIN 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 COIN exposure against your real portfolio. It is not an investment adviser.