Metaplanet’s market-based net asset value (mNAV) fell to 0.88 last week, prompting the Tokyo-listed Bitcoin treasury company to launch the Bitcoin-backed share buyback.
Japan News

Located in East Asia, Japan is a top 20 country in the world in terms of population. Japan has the third-largest economy by nominal gross domestic product and the fourth-largest economy by purchasing power parity. Tokyo is the country’s capital. Bitcoin in Japan has a notable following, as does cryptocurrency and blockchain as a whole.
The country’s regulators have deemed Bitcoin an approved money type. Japan hosts a number of crypto exchanges, and the country has regulatory requirements around the industry, creating a scene more favorable for compliant crypto-asset entities. Bitcoin’s anonymous creator, Satoshi Nakamoto, is thought to be from Japan, although little is confirmed about Nakamoto’s identity.
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Defunct crypto exchange Mt. Gox postponed some long-awaited customer repayments by another year to Oct. 31, 2026, citing incomplete creditor procedures.
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JPYC President Noriyoshi Okabe said that the stablecoin has already garnered interest from seven companies that are looking to incorporate it into their services.
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ARK Invest-backed Quantum Solutions is now the largest Ether treasury outside of the US and has a 100,000 ETH treasury target.
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Japan’s Financial Services Agency is weighing reforms that could let banks hold cryptocurrencies like Bitcoin and operate licensed crypto exchanges.
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Japan’s top banks plan to launch a joint yen-based stablecoin using MUFG’s Progmat platform to modernize payments and corporate settlements.
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Japan is set to amend its rules, which would empower its securities regulator to investigate and punish those involved in crypto-related insider trading.
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Japan Bitcoin treasury company Metaplanet paused Bitcoin purchases for two weeks, only to see its enterprise value slip below the value of its BTC holdings.
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An $11 billion Bitcoin whale returned to crypto markets this week, likely seeking trading opportunities tied to October’s historic crypto rallies and uncertainty in the US.
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Takaichi’s election may have a “material impact” on the governance and regulatory perception of crypto assets in Japan, experts told Cointelegraph.
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SoftBank’s mobile payment service PayPay acquired a 40% stake in the Japanese subsidiary of Binance after applying for US listing in August.
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Japan’s new prime minister may drive a renewed wave of risk appetite among Japanese crypto investors, industry watchers told Cointelegraph.
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Nomura subsidiary Laser Digital confirmed to Cointelegraph that it is in talks with Japan’s FSA to apply for a crypto trading license, eyeing the country’s institutional investors.
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Metaplanet’s Bitcoin Yield surged to 309.8% in late 2024, showing its per-share BTC exposure more than tripled before stabilizing at 33% this year.
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G7 nations are introducing stablecoin rules, from Japan’s pioneering framework to the US GENIUS Act and Europe’s MiCA, reshaping the future of digital money.
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