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RESEARCH · METAPLANET (3350 / MPJPY)

Metaplanet’s ¥52 Billion Bond Deal: Buybacks Now, Potential Dilution Later

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Metaplanet’s ¥52B Bond Deal: Buybacks now, potential dilution later. BTCperShare research dated Oct 13 2026, with 0% coupon, ¥339 conversion and buybacks pills.

Metaplanet is raising ¥52 billion through zero-coupon convertible bonds to refinance Bitcoin-backed borrowing and repurchase its own shares. The deal could give shareholders more Bitcoin per share once buybacks are executed. But that gain needs to be measured against the shares bondholders could receive later.

The company’s announcement allocates approximately ¥23.6 billion to loan repayment and up to ¥28.3 billion to buybacks. None of the proceeds are earmarked for additional Bitcoin purchases.

The unsecured bonds are expected to close October 29, with a five-year term and no periodic interest payments. Investors can demand repayment after three years, creating a potential cash obligation in 2029. A follow-up pricing notice dated October 14 in Japan fixes the conversion price at ¥339, a 29.89% premium to the ¥261 closing share price.

The refinancing addresses a real pressure point. At September 30, Metaplanet had $649.5 million outstanding on its Bitcoin-backed credit facility, equivalent to 17.7% of Bitcoin NAV, above its guideline of less than 10%. Repaying part of that facility should release collateral and reduce interest costs. However, issuing ¥52 billion while repaying ¥23.6 billion leaves approximately ¥28.4 billion more debt outstanding, before other changes.

For BTC per share, the planned repurchases are the immediate attraction. Metaplanet’s transaction presentation outlines an initial buyback of up to 96.93 million shares, costing approximately ¥25.3 billion. If completed in full, that would reduce the ordinary-share denominator by about 7.1%.

Full conversion of the new bonds at ¥339, however, represents approximately 153.4 million shares. That exceeds the initial planned repurchase by roughly 56.5 million shares.

Holding Bitcoin constant at 44,000 BTC, the transaction’s effect would look like this:

Illustrative scenarioRaw sats per shareChange
Before the transaction3,225—
Initial buyback completed in full3,472+7.65%
Same buyback, then full bond conversion3,097−3.97%

BTCperShare calculations using the September 30 ordinary-share count, excluding treasury shares. Scenarios exclude existing warrants/options, further buybacks, other transactions and conversion-price adjustments. These are not the company’s official fully diluted figures.

That last row does not, by itself, establish that the deal destroys shareholder value. Conversion would also remove the ¥52 billion bond liability. Raw BTC per share ignores debt, while buybacks below net asset value can improve the value attributable to each remaining share. The economic outcome depends on both sides of the balance sheet.

Execution is the next test. The initial buyback is scheduled for October 14 in Japan, but its size remains subject to available sell orders. The broader authorization allows up to ¥60 billion and 200 million shares through October 2027; it is not fully funded by this bond. The previous ¥75 billion authorization ended without any shares being repurchased.

Metaplanet has secured terms that should ease collateral and interest pressure once the transaction closes and loans are repaid. Whether shareholders retain more Bitcoin per share over time will depend on how much stock is actually repurchased and how much eventually returns through conversion.