Ark Doubles Down on BitMine’s ETH Treasury While Dialing Back Bitcoin Outlook

Ark’s latest crypto move looks contradictory on the surface and coherent underneath: it added Ethereum balance-sheet exposure while tempering its long-run Bitcoin forecast. That says more about use-cases than tribal camps.

On Thursday, Ark Invest acquired 240,507 BitMine Immersion Technologies (BMNR) shares—about $9.2 million—across its actively managed ARKK, ARKF, and ARKW ETFs. After the purchase, Ark controls over 6.8 million BMNR shares, now valued at nearly $260 million. BMNR, an Ethereum treasury company, had been drifting with ETH’s pullback from its recent peak, but recovered 2% Friday, trading above $38, while ETH changes hands near $3,375. Ark’s biggest BMNR add came in July—roughly 4.7 million shares when the stock was around $40.77. At the time, Chairman Tom Lee characterized the upside as exponential and welcomed Ark’s participation.

Why buy more ETH balance-sheet beta now, even as Bitcoin’s target is revised lower? Because the narratives diverge. Cathie Wood reduced her 2030 BTC projection from $1.5 million to $1.2 million, arguing that stablecoins are increasingly servicing the emerging-market demand profile that many once expected Bitcoin to dominate. If a chunk of transactional demand and cross-border utility migrates to fiat-referenced tokens, some monetary premium that would have accrued to BTC may diffuse elsewhere. Ark’s $1.2 million now aligns with its previously published “base case” after adjusting for “active supply” (excluding lost or very long-held coins), while the firm’s bull case remains $2.4 million per coin by 2030.

BitMine, by contrast, is a scale bet on Ethereum’s treasury function. The company holds nearly 3.4 million ETH—almost $11.3 billion—making it the largest publicly traded Ethereum treasury and the second-largest publicly traded digital asset treasury overall, behind the Bitcoin-hoarding firm with roughly $65 billion in BTC. An ETH treasury is not just a directional bet; it can be an operating model. Depending on policy, such a balance sheet can engage with staking yields, liquidity management, and ecosystem participation, which creates optionality that BTC treasuries don’t always pursue. That difference appears to be what Ark is underwriting: productive collateral versus purely monetary reserve.

There’s a psychological layer too. Ark has often leaned into weakness to express conviction. Buying BMNR into a slide, then seeing it stabilize above $38 as ETH hovers at $3,375, fits that playbook. Meanwhile, Bitcoin is up about 1.3% in 24 hours at $102,488 after twice dipping below $100,000 this week—the first breach since May. Prediction markets on Myriad put just a 26% probability on BTC setting a fresh all-time high this year. ETH is up roughly 2.7% over the same period and sits nearly 33% below its August peak of $4,946. Those tape dynamics explain the rotation: Ark is pressing an ETH treasury thesis while acknowledging that BTC’s upside path may be longer and more contested by stablecoin rails than previously assumed.

From a business and market-structure angle, Ark’s footprint matters. Accumulating more than 6.8 million BMNR shares through ARKK/ARKF/ARKW integrates ETH-treasury beta into mainstream growth, fintech, and innovation sleeves. That can reinforce liquidity and visibility for BMNR, but it also introduces reflexivity: ETF flows can magnify BMNR’s volatility, while BMNR’s treasury policy can influence investor sentiment back into Ark’s funds.

The concentration risk shouldn’t be ignored. A public company stock backed by a massive on-chain treasury creates governance and liquidity questions: custodial security, staking policy, hedging discipline, and drawdown tolerance. Investors will want clarity on how BitMine manages re-staking temptations, counterparty exposures, and any collateralization. The larger the ETH stack, the greater the responsibility to resist short-term yield-for-risk trades that could impair the balance sheet.

What to watch next: whether stablecoin growth continues to siphon off the payments and remittance use-cases that once supercharged BTC models; how BitMine articulates its ETH risk framework in volatile regimes; and whether BTC’s “active supply” dynamics tighten quickly enough to re-widen the path between Ark’s base and bull scenarios. Ark isn’t abandoning Bitcoin; it’s expressing a nuanced view that ETH treasuries can monetize utility now, while Bitcoin’s terminal value accrues over a longer, bumpier adoption curve.