As of September 25, 2026, 174 public companies hold a combined 1,294,821 BTC — 6.16% of Bitcoin's 21 million maximum supply — valued at approximately $107 billion at current prices near $83,600, according to bitcointreasuries.net. The figure represents a structural shift in corporate finance that...
"All companies become Bitcoin treasuries." — Adam Back, CEO, Blockstream
As of September 25, 2026, 174 public companies hold a combined 1,294,821 BTC — 6.16% of Bitcoin's 21 million maximum supply — valued at approximately $107 billion at current prices near $83,600, according to bitcointreasuries.net. The figure represents a structural shift in corporate finance that did not exist five years ago: publicly traded firms now absorb more Bitcoin than miners produce.
In Q2 2026, corporate treasuries purchased a record 110,000 BTC, roughly 2.1 times the amount miners extracted during the same period. Strategy (formerly MicroStrategy) alone holds 846,000 BTC — 65% of all publicly held corporate Bitcoin and roughly 4% of the entire network's supply. The concentration is extreme. The second-largest holder, Twenty One Capital, holds 43,514 BTC. Metaplanet of Japan holds approximately 43,000. The gap between first and second is an order of magnitude.
The model survived its first real stress test in June 2026, when a crypto rout erased $62 billion in market capitalization from Bitcoin treasury companies. Under FASB ASC 350-60 fair value accounting rules, Strategy recorded a $14.46 billion unrealized loss in Q1 2026 alone, flowing directly through its income statement. The losses were unrealized. No major holder capitulated. But the episode exposed the volatility embedded in the treasury model's core accounting structure.
The aggregate data is unambiguous. Corporate Bitcoin treasury holdings have grown from near zero in mid-2020 to over 1.29 million BTC by late September 2026. According to data compiled by bitcointreasuries.net, 197 public companies held approximately 1.273 million BTC as of September 24, when including all tracked entities across public markets.
The pace of accumulation is accelerating. In the first half of 2026, public companies purchased more than 166,984 BTC, exceeding miner output by a factor of 2.1x, according to Cointelegraph data. Q2 2026 alone saw 110,000 BTC flow into corporate treasuries — the largest single-quarter corporate purchase on record.
Bitcoin's price as of September 29 stood at $83,607, down from $85,819 on September 21, and substantially below its late-2025 highs. The trailing 12-month return is negative, with BTC down approximately $30,700 from its year-ago level. Despite the price decline, corporate buying has continued.
The concentration of holdings follows a power-law distribution. The top three holders — Strategy, Twenty One Capital, and Metaplanet — account for approximately 932,514 BTC, or 72% of total corporate holdings. The remaining 171+ companies collectively hold roughly 362,000 BTC.
Strategy (MSTR): 846,000 BTC
Strategy dominates the field by every measure. The company, which rebranded from MicroStrategy in February 2025, holds 846,000 BTC as of its September 21 disclosure. Its total cost basis is approximately $58.02 billion, implying an average acquisition price of roughly $68,600 per coin. At current prices near $83,600, the portfolio carries an aggregate unrealized gain of approximately $12.6 billion, though this figure fluctuates quarter to quarter.
The company's treasury model relies on issuing convertible notes and equity to fund Bitcoin purchases. The mechanism is circular by design: rising BTC prices increase Strategy's stock price, which lowers its cost of capital, enabling further BTC purchases. In reverse, falling BTC prices compress the stock, raise capital costs, and slow accumulation. In April 2026, Strategy added $255 million in BTC, inching toward what CEO Michael Saylor has described as a target of 1 million coins.
Twenty One Capital (XXI): 43,514 BTC
Twenty One Capital, led by CEO Raphael Zagury, went public on the New York Stock Exchange following its merger with Cantor Equity Partners. The company was formed by Tether International, SoftBank Group, and Jack Mallers. It holds 43,514 BTC valued at approximately $3.9 billion.
XXI's strategy differs from Strategy's pure accumulation approach. The company aims to integrate Bitcoin treasury operations with financial services, mining, and capital markets into a single operating platform. In a recent development, Tether International acquired SoftBank's stake in XXI, consolidating the shareholder base under Tether's control.
Metaplanet (3350.T): ~43,000 BTC
Metaplanet, listed on the Tokyo Stock Exchange, holds approximately 43,000 BTC as of July 2, 2026, with an aggregate cost basis of $4.09 billion and an average purchase price of $95,209 per coin. The company is the first non-American firm to break into the top three corporate Bitcoin holders — a development tracked closely by institutional observers in Asia.
Metaplanet funds its purchases through a combination of equity raises, zero-interest bond issuances (it raised 8 billion yen, approximately $50 million, in April 2026), and options-trading income generated against its existing holdings. Its average acquisition cost is significantly above current market prices, placing its portfolio in an unrealized loss position.
The corporate Bitcoin treasury model operates on a leverage-like structure, even when no explicit leverage is used. Companies issue equity or low-interest convertible debt, convert the proceeds into BTC, and hold it on the balance sheet. The logic is that Bitcoin's long-term appreciation exceeds the dilutive cost of equity issuance or the interest cost of debt.
Strategy pioneered this model starting with a $250 million cash purchase in August 2020. By 2026, the model has been adopted across multiple sectors. Grant Cardone's Cardone Capital uses rental property cash flows to purchase BTC, holding approximately $200 million in Bitcoin alongside a portfolio of residential and commercial real estate. MARA Holdings, a Bitcoin miner, held 35,577 BTC as of September 16, 2026, though it sold approximately 23,093 BTC for $1.6 billion in the first half of 2026 to fund operations — illustrating the tension between treasury accumulation and operational cash needs.
The critical variable is the cost of capital. When BTC prices rise, equity-funded purchasers face low dilution (stock is "expensive" so fewer shares must be issued). When BTC falls, the model becomes expensive: stocks trade down, requiring more dilutive issuance to raise the same dollar amount. Debt-funded purchasers face analogous dynamics with interest rates and covenant thresholds.
Corporate buying at 2.8x daily mining output in Q1 2026 introduces a supply-demand dynamic distinct from retail or ETF-driven flows. These are illiquid, balance-sheet-committed positions that are unlikely to be sold in the short term. However, MARA's $1.6 billion in sales demonstrates that "committed" is a spectrum, not a binary.
In June 2026, Bitcoin dropped to approximately $62,000 — its lowest level since February — shedding roughly 16% in a single week. The combined market capitalization of Bitcoin treasury companies fell from approximately $134 billion to $72 billion, erasing $62 billion in value, according to Bloomberg data.
Strategy, MARA Holdings, and other major holders saw their stock prices compress sharply. The losses were unrealized: no major company reported forced liquidation, margin calls, or covenant breaches. Strategy's convertible note structure, which typically does not contain maintenance covenants tied to Bitcoin's price, provided a buffer.
The episode tested the core thesis of the treasury model — that companies can ride through volatility because their holding period is indefinite. None of the major holders capitulated. BTC subsequently recovered to the mid-$80,000 range by late September. But the $62 billion drawdown demonstrated the model's capacity to generate violent mark-to-market swings, even in the absence of actual economic losses.
The adoption of FASB Accounting Standards Codification (ASC) 350-60, effective for fiscal years beginning after December 15, 2024, fundamentally changed how corporate Bitcoin holdings flow through financial statements. Under the new standard, companies must mark their Bitcoin holdings to fair value every quarter, with unrealized gains and losses flowing directly through net income.
Previously, Bitcoin was classified as an indefinite-lived intangible asset, subject to impairment-only accounting: companies could write down but never write up. The new standard is bidirectional.
Strategy's Q1 2026 results illustrate the consequences. The company reported a $14.46 billion unrealized loss on its Bitcoin holdings, with BTC trading at $82,445 on the March 31 balance sheet date against a cost basis of $58.02 billion, producing a carrying value of $51.65 billion. This loss flowed directly through Strategy's income statement, generating massive negative earnings-per-share and a $2.2 billion deferred tax asset.
The FASB standard does exactly what it was designed to do: reflect economic reality on the balance sheet. For Bitcoin treasury companies, that reality is volatile. Quarterly earnings now swing by billions of dollars based on a single asset's spot price. Investors who evaluate these companies on traditional EPS or P/E metrics face an accounting signal that may not correspond to any operational deterioration.
FASB's 2026 work plan includes two follow-on projects: whether specific stablecoins qualify as cash equivalents under GAAP, and how to account for wrapped tokens and staking receipt tokens. These are second-order effects of the original crypto accounting change, suggesting the standard-setter recognizes the standard's initial scope was narrower than the market requires.
The second annual Bitcoin Treasuries Conference convened on September 28, 2026, at SECOND in Midtown Manhattan, drawing 300+ treasury strategists, CFOs, and institutional allocators. The event's existence — and its growth from its 2025 inaugural edition — serves as a structural indicator: corporate Bitcoin holdings have generated their own professional ecosystem.
Keynote speakers included Adam Back (Blockstream), Raphael Zagury (Twenty One Capital), Grant Cardone (Cardone Capital), Robert Mitchnick, and Eric Balchunas. Conference sessions covered corporate Bitcoin strategy for balance-sheet and treasury planning, digital asset accounting requirements under ASC 350-60, and M&A implications of Bitcoin on the balance sheet.
The conference agenda reflects the maturation of the corporate Bitcoin treasury thesis from an individual company strategy (Strategy in 2020) to an institutional category with dedicated conferences, data providers (bitcointreasuries.net tracks 197 entities), and specialized financial products.
The corporate Bitcoin treasury model carries risks that are structural, not cyclical.
Concentration risk. Strategy holds 65% of all corporate Bitcoin. If Strategy were forced to sell — through a hostile takeover, covenant breach on future debt, or regulatory action — the market impact would be substantial. No other corporate holder comes close to this concentration.
Accounting volatility. Under FASB ASC 350-60, quarterly earnings for Bitcoin treasury companies are dominated by unrealized gains or losses that have no cash-flow component. This creates an information problem: investors must distinguish between operational performance and mark-to-market noise. The risk is that market participants treat accounting losses as operational losses, triggering self-reinforcing selling pressure in treasury company equities.
Cost-of-capital reflexivity. The flywheel works in both directions. A prolonged Bitcoin bear market would raise the cost of equity and debt for treasury companies, potentially stalling accumulation and compressing stock prices further. MARA Holdings' decision to sell 23,093 BTC in H1 2026 for $1.6 billion suggests that even committed holders face operational pressures that override treasury mandates.
Regulatory uncertainty. The GENIUS Act stablecoin rules, SEC enforcement actions, and CFTC policy shifts create an environment where the regulatory treatment of corporate Bitcoin holdings could change. No jurisdiction has challenged the treasury model directly, but the absence of challenge is not the same as approval.
Liquidity mismatch. Corporate Bitcoin is booked as a long-term asset but priced in one of the most liquid 24/7 markets in the world. The mismatch between holding-period intent (years) and pricing frequency (continuous) generates mark-to-market volatility that is unusual for corporate balance sheet assets.
The corporate Bitcoin treasury model has scaled from one company's experiment to a $107 billion institutional category in six years. The numbers are large. The concentration is extreme. The accounting is volatile. The thesis — that Bitcoin outperforms the dilutive cost of equity or the interest cost of debt over a multi-year horizon — remains untested across a full market cycle under the new FASB fair value regime.
The $62 billion June drawdown demonstrated that the model can absorb severe stress without forced selling. It also demonstrated that corporate treasury companies are, functionally, leveraged Bitcoin proxies whose equity prices amplify BTC's volatility. For investors, the distinction between "treasury company" and "Bitcoin ETF with operational overhead" remains unclear.
The 174 companies holding 1.29 million BTC are making a concentrated, illiquid bet that Bitcoin's value will compound faster than their cost of capital over time. If Bitcoin appreciates, the model appears prescient. If it stagnates or declines for an extended period, the accounting losses, equity dilution, and operational cash pressures become difficult to manage. The market is pricing the former scenario. The accounting is reporting the latter. The gap between the two is where the real risk sits.