Bitcoin’s September high explained via Metaplanet and MicroStrategy

The scale play versus the growth play

Bitcoin price hit $78,154 on September 1, 2026, after climbing from $62,906 a month prior. Metaplanet holds 43,000 BTC worth roughly $2.6 billion, securing its position as the third-largest public corporate holder. Strategy holds 843,775 BTC, dwarfing Metaplanet by nearly twenty to one. I categorize Strategy as the scale play and Metaplanet as the growth play. The Tokyo-listed Metaplanet recently added 2,823 BTC for roughly $170 million to reach its current 43,000 BTC position, a percentage increase that the much larger Strategy cannot match at its current scale. Strategy, under chairman Michael Saylor, began converting its balance sheet into Bitcoin in 2020. Strategy recently sold 3,588 BTC for $216 million to meet a preferred dividend obligation. This sale was well under half a percent of its massive holdings. Strategy’s 843,775 BTC stack is worth far more than every other corporate treasury combined. Strategy’s stock, MSTR, trades around $93.32 and moves as a high-beta version of Bitcoin.

Funding models and yield

Metaplanet uses yen debt and ordinary bonds to build its treasury. These cheap loans work well because the yen sits near 162 per dollar. Strategy uses equity, convertible debt, and preferred stock to acquire its coins. These preferred layers create a recurring cash cost that the company must service regardless of market movement. Metaplanet, led by CEO Simon Gerovich, pivoted to a Bitcoin treasury strategy in 2024. Metaplanet acquired Siiibo Securities for $13.1 million in cash to create a route into Bitcoin yield products. This deal supports the plan to build a Bitcoin-centered financial platform in Japan. Metaplanet uses Siiibo’s Type I Financial Instruments Business registration to develop Bitcoin-linked bonds for Japanese investors. You already know that holding coins on a balance sheet lacks the utility of active yield. Metaplanet targets 210,000 BTC by the end of 2027. During the first quarter of 2026, the company generated 2.97 billion yen in revenue from options strategies tied to its holdings. Metaplanet also raised capital twice during the quarter through share issuances and warrants, including a March raise of 40.8 billion yen. Metaplanet’s BTC Yield was 2.8 percent for Q1 2026. Simon Gerovich noted that approximately $7.4 trillion remains in Japanese household cash deposits. I call the Metaplanet model a fast challenger to the established leader.

Market valuation and mNAV

The market values these treasuries using mNAV. Strategy trades at a 1.13 premium, allowing it to issue shares and buy more Bitcoin. Metaplanet trades at a 0.77 discount. This discount places the market value of the company below its actual Bitcoin reserves. I see Metaplanet as a play on momentum and cheap financing. Strategy provides unmatched scale and a five-year track record. Metaplanet provides explosive growth and a currency tailwind. A premium above one lets a company issue new shares above the value of its coins to grow its Bitcoin holdings. When the premium compresses toward one, the engine stalls. VanEck warned that companies approaching parity with their Bitcoin holdings risk erosion rather than capital formation. Bitcoin reached a $126,198 all-time high in October 2025, but the market remains volatile. Which company handles a sudden market crash better?