Public companies now hold approximately 1.3 million BTC — roughly 6.2% of circulating supply — up from 1.13 million in February 2026. The number of listed firms running a Bitcoin treasury strategy exceeds 190, after 75 new entrants joined in 2025 alone. The week of June 16–19, 2026 saw two develo...
"The mechanism that built Strategy's treasury only works in one direction: above 1.0x mNAV." — Analyst note, SpotedCrypto, June 2026
Public companies now hold approximately 1.3 million BTC — roughly 6.2% of circulating supply — up from 1.13 million in February 2026. The number of listed firms running a Bitcoin treasury strategy exceeds 190, after 75 new entrants joined in 2025 alone. The week of June 16–19, 2026 saw two developments that crystallize the sector's trajectory: France-based Capital B secured shareholder approval for up to €105 billion ($120.4 billion) in financing capacity to acquire more Bitcoin, and the U.S. House ARMA bill — proposing a 1 million BTC sovereign reserve with a 20-year lockup — gathered 17 bipartisan co-sponsors.
These moves reflect a structural shift: Bitcoin treasury operations have moved from a single-company experiment (Strategy, née MicroStrategy, starting in 2020) to a multi-continent, multi-tier competitive landscape spanning corporate balance sheets, sovereign reserves, and stablecoin issuers. The question is no longer whether institutions will hold Bitcoin. It is whether the financial engineering used to accumulate it can survive a prolonged downturn.
As of June 17, 2026, tracked public companies collectively report 1,306,099 BTC on their balance sheets, according to BitcoinMiningStock.io's treasury tracker. Bitcoin traded at approximately $63,908 on June 18, placing the aggregate corporate position at roughly $83.4 billion in market value.
The concentration is extreme. Strategy Inc. (MSTR) alone holds 846,842 BTC — 64.8% of all corporate holdings and 4.0% of Bitcoin's 21 million fixed supply. Its average cost basis sits at $66,384.56 per coin, for a total outlay of $33.1 billion. At $63,908, the portfolio carries an unrealized loss of approximately $2.1 billion.
The top five holders account for over 990,000 BTC:
| Rank | Company | Ticker | BTC Holdings | Approx. Value ($B) | |------|---------|--------|-------------|-------------------| | 1 | Strategy Inc. | MSTR | 846,842 | 54.1 | | 2 | Twenty One Capital | XXI | 43,514 | 2.8 | | 3 | Metaplanet | 3350.T | 40,177 | 2.6 | | 4 | MARA Holdings | MARA | 35,303 | 2.3 | | 5 | Bullish | BLSH | 24,300 | 1.6 |
Below the top five, the field fragments rapidly. Capital B holds 3,135 BTC, ranking 25th globally — a position it aims to change.
On June 17, 2026, Capital B (Euronext Growth Paris: ALCPB) shareholders approved all proposed resolutions at the company's extraordinary general meeting with over 95% support. The authorizations include up to €5 billion in nominal equity capital increases and up to €100 billion in credit instruments, totaling €105 billion ($120.4 billion) in financing capacity.
The numbers require context. Capital B currently holds 3,135 BTC — worth roughly $200 million at current prices. An authorization to raise $120 billion is 600 times the current portfolio value. The company's stated goal: accumulate 1% of Bitcoin's total supply (210,000 BTC) by 2033.
Capital B is simultaneously developing Europe's first Bitcoin-backed credit instrument modeled on Strategy's STRC product, according to The Block. This would extend the high-yield, BTC-collateralized debt structure to European institutional investors for the first time. The company is backed by Bitcoin investors including Adam Back (Blockstream CEO) and Fulgur Ventures.
The authorization is a ceiling, not a commitment. Capital B must still find buyers for equity or debt issuances. Whether European capital markets will absorb instruments of this magnitude for a single-asset treasury strategy remains untested. For comparison, Strategy's total capital raised across equity and convertible debt since 2020 stands at approximately $42 billion — and that was executed over five years in the deeper U.S. capital markets.
Strategy's financial model depends on a single variable: its modified net asset value (mNAV) ratio — the relationship between its market capitalization and the value of its Bitcoin holdings.
The trajectory tells the story. In late 2024, MSTR traded at 2.5x–4.0x mNAV. By spring 2026, the ratio fell to 1.16x. As of June 15, 2026, it sits at approximately 0.82x–0.86x — an 18% discount to net asset value.
This inversion breaks the company's accumulation engine. When shares trade above 1.0x mNAV, Strategy issues equity at a premium, buys Bitcoin with the proceeds, and increases Bitcoin-per-share for existing holders. Below parity, every share issuance dilutes existing holders' Bitcoin exposure. The flywheel reverses.
Strategy carries approximately $8.2 billion in convertible debt outstanding with maturities staggered across 2027–2032. The nearest pressure point is September 15, 2027, when holders of $1.01 billion in 0.625% convertible notes may exercise a put option requiring repurchase. In response, Strategy announced plans to swap approximately $6 billion in convertible debt for equity, and completed a $2 billion 0% convertible offering due 2030 to extend its maturity profile.
S&P Global Ratings assigned Strategy a junk-level credit rating in October 2025, citing narrow business focus and the risk that convertible maturities could coincide with Bitcoin price weakness. The company's software business generates revenue, but it is insufficient to service debt of this scale without Bitcoin appreciation or continued access to capital markets.
Metaplanet (3350.T) holds 40,177 BTC as of June 12, 2026, making it Asia's largest corporate Bitcoin holder and the third-largest globally. The Tokyo-listed company has moved beyond passive accumulation.
In June 2026, Metaplanet announced the acquisition of Siiibo Securities, a licensed Japanese Type I securities firm, for 2.1 billion yen ($13 million). The deal, branded "Project Nova," aims to transform Metaplanet from a Bitcoin holder into a Bitcoin-centered financial platform — structuring and distributing regulated BTC-linked yield products, digital securities, and lending services to Japanese retail investors.
Metaplanet's thesis is that Japanese households hold approximately $7.4 trillion in low-yield savings. Even a small reallocation toward Bitcoin-linked products could represent substantial inflows. The weak yen environment — which has persisted through 2026 — provides an additional tailwind, as yen-denominated Bitcoin returns exceed dollar-denominated returns by the currency depreciation margin.
Twenty One Capital (XXI) holds 43,514 BTC following a turbulent ownership restructuring. SoftBank sold its 26% stake (valued at approximately $679 million) to Tether in May 2026, per Bloomberg. Tether now exercises full control of the NYSE-listed vehicle. A proposed three-way merger with Jack Mallers' Strike platform and Elektron Energy would create an integrated Bitcoin company spanning treasury, mining, lending, and financial services.
The Tether-Twenty One connection raises a structural question: Tether holds over $100 billion in reserves backing USDT, with a significant and growing Bitcoin allocation. Tether effectively controls both the largest stablecoin (used to buy Bitcoin) and a major public Bitcoin treasury company. The circularity has not yet drawn regulatory scrutiny, but the linkage concentrates systemic risk.
The ARMA Bill. On May 21, 2026, Representatives Nick Begich (R-AK) and Jared Golden (D-ME) introduced the American Reserve Modernization Act (ARMA) with 17 bipartisan co-sponsors. Key provisions:
The U.S. currently holds an estimated 328,372 BTC (approximately 1.6% of total supply), accumulated through law enforcement seizures from Silk Road, the 2022 Bitfinex hack recovery, and other criminal forfeitures. ARMA would codify retention of these assets and authorize further purchases.
The bill sits in the House Committee on Financial Services. Its passage timeline is uncertain, but if enacted and if Treasury begins open-market purchases, the estimated start date is Q4 2026.
El Salvador continues daily purchases despite a $1.4 billion IMF agreement that nominally restricts public-sector Bitcoin acquisition. As of June 13, 2026, the country holds 7,681 BTC — worth approximately $491 million — accumulated through a roughly one-BTC-per-day policy that added over 1,600 coins between January and April 2026.
The Bitcoin treasury model carries three interlocking risks that scale with the sector's growth.
1. Leverage Reflexivity. The core mechanism — issue equity or debt above NAV, buy Bitcoin, increase per-share BTC exposure — is reflexive. Rising Bitcoin prices increase NAV premiums, enabling more issuance, which funds more buying, which supports prices. The feedback loop works in reverse: falling prices compress premiums, shut the issuance window, and in extreme cases force liquidation to service debt. Strategy's shift from a 4x premium to a 0.82x discount illustrates the downside of this cycle.
2. Debt Maturity Concentration. Across the sector, convertible notes with put options and maturity dates create discrete pressure points. If multiple treasury companies face refinancing windows during a Bitcoin downturn, forced selling or equity dilution could amplify price declines. Strategy alone carries $8.2 billion in convertible obligations. The sector-wide figure is materially higher.
3. Supply Absorption and Liquidity. Public companies hold 6.2% of circulating supply. Add sovereign holdings (U.S. 328,372 BTC, El Salvador 7,681 BTC, plus other nations), ETFs, and long-term holders, and the effective free float is substantially smaller than headline supply suggests. This cuts both ways: it supports prices during accumulation phases, but thins the order book for exits. If a major treasury company were forced to liquidate even 5% of its holdings, the market impact on current liquidity could be severe.
4. Regulatory Concentration. The sector's largest players operate in overlapping regulatory jurisdictions. Tether controls both USDT and Twenty One Capital. Strategy's junk credit rating constrains its financing options. Capital B's €105 billion authorization will test European securities regulators' tolerance for single-asset treasury vehicles at scale. Any one of these nodes experiencing regulatory friction could cascade.
The Bitcoin treasury sector has passed the proof-of-concept phase. The question facing the market in mid-2026 is whether the financial architecture supporting these holdings — convertible notes, equity premiums, credit instruments — can withstand a sustained period of Bitcoin trading below key cost bases. Strategy's mNAV inversion is not a theoretical risk; it is the current market state.
Capital B's €105 billion authorization and the ARMA bill's 1 million BTC target represent the sector's ambition. Strategy's sub-parity trading and junk credit rating represent its constraints. The distance between the two defines the risk embedded in every Bitcoin treasury position.
The economic value created by these companies flows through a narrow channel: Bitcoin appreciation. Unlike the diversified revenue streams analyzed in traditional equity research, Bitcoin treasury companies offer a single-factor exposure wrapped in varying degrees of financial leverage. When that factor cooperates, returns are amplified. When it does not, the leverage works in reverse, and the companies' debt structures become the dominant variable.
Market participants pricing these securities are, in effect, making a joint bet on Bitcoin's trajectory and on each company's ability to refinance obligations before they mature. At 0.82x mNAV for the sector's dominant player, the market is signaling that at least one of those variables is in question.