Metaplanet Cut Its 2026 Revenue Forecast 59%. The Bitcoin Treasury Math Just Broke.

Metaplanet just took an axe to its own 2026 numbers. On November 13, the Tokyo-listed Bitcoin treasury firm cut its revenue forecast 59%, from ¥16 billion down to ¥6.5 billion. Operating profit got hit even harder, down 74% to ¥3 billion from ¥11.4 billion.

The stock closed at ¥219 that day, off 4.37%. Year to date it's down 53.21%. Half the market cap, gone.

Here's the thing people are glossing over. Metaplanet blamed the cut on its own discounted stock. That's the tell.

Think about how this model actually works. You issue shares at a premium to net asset value, take the cash, buy bitcoin. Every share sold above NAV is accretive per-share BTC. It's a beautiful loop while the premium holds. But when your stock trades below the value of the coins you hold, the loop reverses. Selling shares then destroys per-share value. So you stop raising. Which means you stop buying. Which means the revenue booked off that accumulation machine dries up.

So the honest question: if your business is "sell expensive stock, buy cheap bitcoin," what exactly are you selling when the stock isn't expensive anymore?

Real talk: the mNAV premium is the product. The bitcoin is just inventory. Every treasury company on earth is running the same trade, and every one of them gets repriced when that premium compresses. Metaplanet is simply the first one big enough to admit it in a guidance table.

The chain doesn't lie. That ¥3 billion operating profit isn't a crisis, and the BTC stack is still serious. But the numbers confirm something bigger than one company. The reflexive era, where treasuries bought hand over fist because their stock was rich, is cooling. Less aggressive marginal buying from the exact cohort that drove 2024 and 2025 demand.

Watch the mNAV. Above 1 and the machine restarts. Below it, expect more guidance cuts from the rest of the pack.