More than 70 publicly traded companies now hold Bitcoin on their balance sheets — the corporate treasury playbook is taking shape

MicroStrategy — since rebranded as Strategy — holds 576,230 BTC as of May 2026, acquired at an average price of approximately $36,800. At current prices near $105,000, that position represents an unrealized gain of roughly $39 billion. The company's stock, MSTR, has become effectively a leveraged Bitcoin proxy and trades at a premium to its net asset value that has prompted both institutional fascination and regulatory scrutiny. What started as a contrarian CFO decision in 2020 has spawned a corporate treasury category with over 70 publicly traded participants.

The companies range from the serious to the cynical: Japanese investment firm Metaplanet has built a substantial BTC position and its stock has surged over 1,000% since adopting the strategy. Marathon Digital Holdings and Riot Platforms hold Bitcoin as a byproduct of mining operations. Smaller companies with declining core businesses have announced Bitcoin treasury plans with the apparent aim of engineering a stock catalyst rather than genuine conviction. Separating the structurally sound from the opportunistic requires looking at the actual mechanics of how this works.

The mechanics of Bitcoin as treasury reserve

A company adopts Bitcoin as a treasury reserve asset by converting excess cash — or proceeds from debt or equity issuance — into BTC held on the balance sheet. The strategic argument has two components. First, Bitcoin as a hedge against dollar debasement: the thesis that US money supply expansion erodes the purchasing power of cash holdings, and Bitcoin's fixed 21 million supply cap provides protection. Second, corporate Bitcoin holders argue the asset's low correlation to traditional equities provides portfolio diversification at the corporate treasury level.

The accounting framework matters. Under US GAAP prior to 2024, Bitcoin held as an intangible asset could only be written down on the income statement when its price fell below carrying value — but unrealized gains were not recognized. FASB ASC 350-60, effective for fiscal years beginning after December 15, 2024, changed this: companies can now elect fair-value accounting for crypto holdings, with unrealized gains and losses flowing through the income statement. Strategy elected this treatment immediately, meaning its quarterly earnings now reflect Bitcoin's price movements directly.

How Strategy actually funds its purchases

Strategy doesn't just convert operating cash flow into Bitcoin. The company uses a sophisticated capital markets approach: issuing convertible notes (bonds convertible into MSTR stock at a premium) and preferred shares (STRK and STRF, introduced in 2025) to raise cash, then buying Bitcoin with the proceeds. The convertible bond holders get bond-like downside protection with equity-like upside if Bitcoin rises and MSTR stock follows. Strategy captures the spread between its borrowing cost (typically 0–0.5% coupon on convertibles) and its expected Bitcoin return.

This works as long as MSTR trades at a premium to Bitcoin NAV, which it has done consistently. The premium exists because MSTR stock provides institutional investors access to Bitcoin exposure in traditional brokerage accounts without custody complexity. The risk: if MSTR's premium collapses to NAV, the ability to raise cheap capital disappears and the model breaks. This happened briefly in early 2022 when BTC fell 70%.

Companies doing it without the leverage

Not every corporate Bitcoin holder is running Strategy's leveraged playbook. Block (Jack Dorsey's fintech company) holds a modest BTC reserve funded from operating cash, currently around $240 million at cost. Tesla still holds approximately 11,500 BTC from its 2021 purchase after selling most of the position that year. Coinbase holds Bitcoin operationally. These are more conservative implementations: treasury diversification without borrowing to fund the position.

Metaplanet, the Japanese firm most often cited as "Asia's MicroStrategy," benefits from an additional currency dynamic: the company issues bonds in yen, converts to BTC, and benefits from Bitcoin appreciation against a substantially weakened yen. Currency dynamics make the strategy different in Japan than in the US.

What the US Senate Bitcoin Act would change

Senator Cynthia Lummis reintroduced the Bitcoin Act in 2025, proposing that the US Treasury purchase up to 1 million BTC over five years as a strategic reserve asset. The bill has not passed as of May 2026, but its existence has changed corporate board conversations. If the US government were to begin systematic BTC purchases, the signaling effect on other sovereign and corporate treasuries would be substantial.

The 2024 SEC approval of spot Bitcoin ETFs changed institutional access significantly. A corporate treasurer can now hold Bitcoin exposure via ETF (BlackRock's IBIT, Fidelity's FBTC) without the custody and accounting complexity of direct BTC ownership. This has bifurcated the corporate Bitcoin world: companies that want the balance sheet asset and mark-to-market accounting treatment hold spot BTC, while companies that want passive exposure without operational complexity use ETFs.

The risks that corporate adopters understate

Volatility is the obvious risk, but it's not the primary structural concern. The more serious risks are accounting complexity and liquidity mismatch. Companies that fund Bitcoin purchases with debt create a situation where a prolonged Bitcoin bear market can coincide with refinancing requirements. Strategy's convertible notes have staggered maturities (2027, 2028, 2029, 2030) specifically to avoid cliff-edge refinancing risk, but smaller imitators with less sophisticated capital structures may not have that cushion.

Custody concentration is another underappreciated risk. Most corporate Bitcoin holders use a small number of custodians — Coinbase Custody dominates — creating systemic exposure to custodian failure or regulatory action. Regulatory uncertainty also remains real: the IRS treatment of corporate crypto holdings under various scenarios (hard forks, staking rewards, airdrops) is still partially unresolved.

What the 70+ company count actually signals

The meaningful signal from 70+ corporate Bitcoin holders is not that Bitcoin is universally accepted as a treasury asset — most of these companies are small and many hold trivial amounts. The signal is that the legal, accounting, and custody infrastructure now exists to allow any public company to hold Bitcoin without inventing new processes. The friction has been reduced from "requires custom legal work and accounting treatment" to "requires selecting a custodian and making an accounting election."

The next bear market will test how many of the 70+ companies are truly committed versus opportunistic. The ones that survive the test with their positions intact will provide the data points for the next wave of corporate adoption.