Bitcoin Japan disclosed on October 7, 2026, that it acquired 5.8847 BTC at an average price of $84,706.34 per coin, lifting its corporate reserve to 17.8035 BTC. The purchase was executed through BTC JPN Ltd., its Cayman Islands-based subsidiary, and was reported on the Tokyo Stock Exchange's TDnet platform. This is the company's second purchase in nine days, following an 11.9188 BTC buy on September 28 at $83,857.43 per coin. Total capital deployed for both transactions stands at roughly $1.50 million, with a volume-weighted average price of $84,138 per BTC.
The board had authorized a 662 million yen digital-asset budget, and the company has now used about one-third of that amount. Future purchases will depend on cash reserves and market conditions. Management said holdings will be marked to market at each fiscal quarter, meaning Bitcoin price swings could flow directly into quarterly income statements.
Bitcoin Japan is a Tokyo-listed company trading under ticker 8105, with a market capitalization near 4.6 billion yen. It traces its roots to Marusho Hotta Co., founded in 1861. It rebranded in November 2025 after U.S.-based Bakkt Holdings took a roughly 30% stake from RIZAP Group. For comparison, Japanese corporate Bitcoin leader Metaplanet held about 44,000 BTC as of late September 2026 and had a market value near 387 billion yen. Bitcoin Japan's financing with the EVO Fund includes zero-coupon convertible bonds and stock acquisition rights totaling up to 9.66 billion yen, of which only 7% is earmarked for Bitcoin; the rest is directed to Robotics-as-a-Service, South Africa mining operations, and private equity. The structure also carries dilution risk, with potential new shares up to 110% of pre-existing share capital if conversions hit their floor price.
Separately, Japan's Ministry of Finance held its first meeting on October 8, 2026, to study tokenizing Japanese Government Bonds. The ministry outlined three possible blockchain routes: transferring beneficiary rights of a JGB-investing money market fund on-chain; recording transfers within the existing book-entry settlement system on blockchain ledgers, potentially at account-management institutions or the Bank of Japan's ledger; and issuing a new blockchain-native government bond outside the current settlement infrastructure. The panel included academics from the University of Tokyo and Waseda University, strategist Chotaro Morita, the Bank of Japan and the Financial Services Agency.
The ministry argues tokenization could streamline collateral and liquidity management, especially for overseas investors who already hold assets on-chain. That matters as demand for Japanese debt has weakened. The 10-year yield reached 2.95% in August, the highest since September 1996, while recent 10-year auctions drew weak bids. Japan's fiscal pressure is severe: ministries requested a record 143 trillion yen for fiscal 2027, debt-servicing costs are expected to hit a record 36.64 trillion yen, and the assumed interest rate has been raised from 3% to 3.8%.
The ministry also noted potential downsides, including market fragmentation, the challenge of managing price swings in 24/7 trading, and the cost of rewiring systems and rules. It plans hearings with firms and aims to produce a report around January 2027. Existing yen stablecoin JPYC is backed by savings and JGBs, and the ministry's exploration could deepen Japan's link between stablecoins, blockchain rails and government debt demand.
