What is a Bitcoin treasury company? A plain guide to the model

A Bitcoin treasury company is a public company that holds bitcoin on its balance sheet as a core reserve asset, usually funded by selling new shares or borrowing. The best known is Strategy, the firm once called MicroStrategy. The pitch is simple. Buy bitcoin, hold it, and let shareholders own the coins through a stock that anyone can trade. The model works well in a rising market. It strains in a falling one.

What a Bitcoin treasury company is

These firms are sometimes called digital asset treasury companies, or DATs. A normal business keeps its spare money in cash, bank deposits, or short-term government bonds. A Bitcoin treasury company swaps a large part of that for bitcoin and treats the coin as a long-term store of value rather than idle cash. Some still run a real operating business behind the holdings. Many now exist mainly to hold coins, with the stock acting as a wrapper around bitcoin.

Where the model came from

In August 2020 the software maker MicroStrategy moved $250 million of company cash into bitcoin, buying 21,454 coins at about $11,600 each. It was the first large listed company to make the coin its main treasury reserve. The firm later renamed itself Strategy. Michael Saylor, its co-founder and chairman, became the loudest public voice for the idea, and dozens of companies copied it over the next five years. By June 27, 2026, Strategy held bitcoin worth about $51.1 billion, which still made it the largest corporate holder, according to CoinDesk.

How they raise cash to buy more bitcoin

The money to buy bitcoin does not come from selling software. It comes from the capital markets. These companies issue new shares, sell convertible bonds, and offer preferred stock, then spend the proceeds on more coins. When the share price sits above the value of the bitcoin held per share, the math favors existing owners. The company sells stock, raises more cash than the coins are worth, buys bitcoin, and lifts the amount of bitcoin behind each share. This is the engine.

One old obstacle recently fell away. Until the end of 2024, US accounting rules made companies write bitcoin down when its price dropped but never mark it up when it rose, so balance sheets looked worse than reality. The Financial Accounting Standards Board changed that with a rule known as ASU 2023-08, effective for fiscal years beginning after December 15, 2024. It requires firms to measure bitcoin at fair value and run gains and losses through net income every quarter. That removed one long-standing objection to holding the coin on a public balance sheet.

mNAV: the number that makes or breaks the model

mNAV is short for market net asset value multiple. It compares a treasury company's market value with the value of the bitcoin it holds. Above 1 means investors pay a premium for the stock, more than the coins alone are worth. Below 1 means the market values the whole company at less than its own bitcoin. That gap decides everything. Above 1, issuing shares to buy coins rewards holders. Below 1, the same move shrinks the bitcoin behind each share, and the growth engine stalls.

How a treasury company differs from a Bitcoin ETF

A spot Bitcoin ETF also holds bitcoin for investors, but it works in a different way. A fund uses a creation and redemption process that keeps its price close to the value of the coins it holds. A treasury company has no such anchor, so its stock can trade far above or far below the underlying bitcoin. A fund cannot borrow to buy more. A treasury company can, which adds upside in a boom and deeper losses in a bust. If you want price exposure that tracks bitcoin closely, a fund does that job. A treasury stock adds leverage, corporate debt, and a bet on the manager's choices. Our guide to what a Bitcoin ETF is covers the fund side in plain terms.

The risks, and what the record shows

Nothing guarantees the premium. In August 2025, Capriole Investments counted 156 publicly listed crypto treasury firms, and about one in three traded below an mNAV of 1, according to DL News. Carlos Guzman, vice president of research at GSR, said, "There are structural reasons that suggest we may continue to see mNAVs dropping for some treasury companies." Dom Kwok, a former Goldman Sachs analyst, warned of a "spiral of doom," where a firm forced to sell shares at a thin premium erodes shareholder value, piles up interest costs, and may end up selling bitcoin to cover its debts.

Not everyone is worried. Andre Dragosch, European head of research at Bitwise, said the risks were relatively limited. Those two views sit side by side because the model has not been tested through a long downturn at this scale.

Even the leader has felt the strain. By June 27, 2026, Strategy's own stock traded below the value of its bitcoin, with holdings worth about $51.1 billion against an enterprise value near $50.4 billion, and the shares down roughly 85 percent from their November 2024 peak, CoinDesk reported. Other firms have shown how fast the ground can move. Japan's Metaplanet sold and then rebought bitcoin to prove it could manage its holdings. What no one yet knows is whether most of these companies can ride out a multi-year bear market without being forced to sell coins.

None of this is investment advice. A Bitcoin treasury stock is a leveraged, indirect way to own bitcoin, and it carries risks the coin itself does not: debt, share dilution, and the decisions of the people running it. Treat the premium as a mood, not a promise.