A European MicroStrategy wannabe just executed a €21 million capital raise that reveals the structural contradiction at the heart of the Bitcoin treasury company model.
On August 31, 2025, Capital B—a European-listed Bitcoin treasury company holding 3,145 BTC—will complete a private placement of 36,219,070 new shares at €0.58 per unit. Each unit comes with four warrants attached, exercisable at €0.75, €0.98, and €1.27 over a five-year period. The company plans to use the proceeds to purchase approximately 270 additional Bitcoin, bringing its total treasury to 3,415 BTC.
On the surface, this looks like business as usual in the post-MicroStrategy era. A small-cap company raises money, buys Bitcoin, and promises shareholders leveraged exposure to the world's most volatile asset. But beneath this familiar narrative lies a structural detail that most investors will miss: if all warrants are exercised, the company's BTC-per-share ratio will decline by 24.1%.
This is not a rounding error. This is the quiet mechanics of dilution disguised as growth.
The Context: A Crowded Field of Bitcoin Mimics
MicroStrategy pioneered the Bitcoin treasury model between 2020 and 2024, amassing over 226,500 BTC and transforming from a struggling software company into the world's largest corporate Bitcoin holder. The playbook is deceptively simple: raise capital through equity or debt instruments, convert those proceeds into Bitcoin, and hope the cryptocurrency appreciates faster than the cost of capital.
The market has rewarded this strategy handsomely. MSTR's market capitalization has at times traded at 2-3 times the value of its Bitcoin holdings, reflecting investor willingness to pay a premium for the "leverage" that a public company structure provides.
This success has spawned a wave of imitators. Japan's Metaplanet has accumulated over 500 BTC. Hong Kong-listed Boyaa Interactive holds roughly 2,000 BTC. And now Capital B, a European entity with a modest 3,145 BTC treasury, is attempting to carve out its own niche in this increasingly crowded field.
But there's a critical difference between the pioneer and the followers. MicroStrategy primarily used convertible notes—debt instruments that don't dilute existing shareholders until conversion. Capital B has chosen a more aggressive structure: equity placement with attached warrants. This distinction matters enormously for existing shareholders.
The Core Analysis: Tracing the Dilution Mechanics
Let me walk through the numbers, because the devil here is genuinely in the details.
Current State: Capital B holds 3,145 BTC. Based on the company's own disclosures, this translates to approximately 7.4725 BTC per million shares outstanding.
Immediate Impact: The new placement adds 36,219,070 shares. If we calculate the BTC-per-million-shares ratio after this immediate issuance, it drops to approximately 7.4711—a negligible decline of 0.02%. The company can honestly claim that this raise is "neutral" to shareholder Bitcoin exposure.
The Warrant Problem: Each new share comes with four warrants. That's 144,876,280 potential new shares if all warrants are exercised. The exercise prices range from €0.75 to €1.27, representing a 29% to 119% premium over the current placement price of €0.58.
If all warrants are exercised, the total share count balloons, and the BTC-per-million-shares ratio collapses to approximately 5.6730—a 24.1% decline from current levels.
Let me put this in human terms. If you own 1% of Capital B today, your ownership stake would be:
- After the immediate placement: 0.9%
- After full warrant exercise: 0.65% to 0.55%, depending on the warrant tranche
This is the mathematical reality that the company's press release buries beneath the headline of "expanding Bitcoin treasury."
What the Company Isn't Telling You: The disclosed dilution calculation excludes several other potentially dilutive instruments. The company has older BSA-series warrants with undisclosed terms. There are warrants attached to convertible bonds that aren't included in the calculation. And there's a TOBAM program with €300 million in unissued capacity that could represent future dilution.
In other words, the 24.1% figure is likely the floor for potential dilution, not the ceiling.
The Contrarian Angle: Why This Model May Be Structurally Unsound
Here's where I need to step back and question something more fundamental. The Bitcoin treasury company model has a hidden vulnerability that becomes apparent when you examine the incentive structure.
The Dilution Spiral: Every time a Bitcoin treasury company raises capital, it dilutes existing shareholders. The model only works if Bitcoin appreciates faster than the dilution rate. In a bull market, this creates a virtuous cycle: rising Bitcoin prices justify more capital raises, which buy more Bitcoin, which pushes prices higher.
But what happens in a bear market? The company's stock price falls, making equity raises more expensive. The warrants become worthless, cutting off a future funding source. The company can't buy more Bitcoin, so the narrative stalls. And existing shareholders are left holding both a declining stock price and a declining BTC-per-share ratio.
This isn't hypothetical. We saw this dynamic play out with mining companies in the 2022 bear market, where the combination of falling Bitcoin prices and relentless dilution destroyed shareholder value.
The MSTR Comparison: MicroStrategy's use of convertible notes is structurally superior to Capital B's warrant-heavy approach. Convertible notes don't dilute existing shareholders until conversion, and even then, the conversion typically happens at a premium to the current stock price. Warrants, by contrast, are a more direct and immediate form of dilution.
The fact that Capital B chose warrants over convertibles suggests one of two things: either European capital markets have less appetite for convertible structures, or the company's access to traditional financing channels is more constrained than it appears.
The Governance Question: Shareholders have already authorized €5 billion in capital increases and a €100 billion credit facility. This is an extraordinary level of trust to place in management, especially when the company's entire strategy depends on Bitcoin's continued appreciation.
The Takeaway: What This Means for Investors
The Capital B case is a microcosm of a broader problem in the Bitcoin treasury company sector. The narrative of "accumulating Bitcoin" obscures the mechanical reality of dilution. Every capital raise is a trade-off: more Bitcoin for the treasury, but less Bitcoin per share for existing holders.
The key metric to watch is not total Bitcoin holdings, but BTC per million shares. This is the number that actually determines whether shareholders are benefiting from the strategy.
For investors considering exposure to this sector, the lesson is clear: not all Bitcoin treasury companies are created equal. The financing structure matters as much as the Bitcoin accumulation strategy. A company using convertible notes with minimal dilution is fundamentally different from one using warrant-heavy private placements.
As for Capital B specifically, the next 12 months will be telling. If Bitcoin continues its upward trajectory, the warrants will likely be exercised, and the company will have more capital to deploy. But existing shareholders will have absorbed a 24% dilution hit. If Bitcoin stalls or declines, the warrants will expire worthless, and the company will have lost its primary funding mechanism.
Either way, the arithmetic doesn't favor the small investor who bought in at the current level.
The question isn't whether Capital B can accumulate Bitcoin. It's whether the accumulation strategy creates value for shareholders after accounting for the cost of capital. And in this case, the cost of capital is steeper than the headline numbers suggest.
In the quiet mechanics of this €21 million raise, we can see the future of the Bitcoin treasury model—and it's more fragile than the narrative suggests. The code of corporate finance doesn't lie, but it does hide. And what it's hiding here is a 24.1% dilution that most investors will never calculate.