Key Takeaways
- • BlackRock, SBI Holdings and Startale signed an MOU to study the technological needs, business models and regulations for connecting BlackRock's tokenized BUIDL fund with the Japanese yen stablecoin JPYSC, according to AMBCrypto.
- • Japan's Digital Asset Co-Creation Consortium proposed tokenizing Japanese government bonds for on-chain repo, targeting 40% of the JGB repo market, or around 106 trillion yen.
- • Japan's repo market is currently around $1.6 trillion, and a CC Network-based testnet is slated to run from November to March to connect domestic and international repo and collateral platforms.
- • Japanese holders account for 15.4% of unique wallet holdings of U.S. Treasury tokens, though only 0.4% of total value, or $61.7 million.
- • BUIDL's total value has fallen 4% to $2.17 billion and its holder count has dropped to 101, per AMBCrypto.
Summary
BlackRock has partnered with Japan's SBI Holdings and Startale to explore connecting its tokenized investment fund, BUIDL, with JPYSC, a Japanese yen stablecoin. Under the memorandum of understanding, the three parties will study the technological requirements, business models and regulatory framework for the link. SBI Chairman Yoshitaka Kitao said the shift to on-chain finance is "becoming an unavoidable global trend" and argued that Japan needs to lead it. The partnership is described as open, with an invitation to other global institutions to participate.
The initiative coincides with a broader Japanese government push to tokenize sovereign debt. According to AMBCrypto, citing Global Government Finance reporting from early August 2026, Japan is seeking to modernize its sovereign debt management. The Digital Asset Co-Creation Consortium, supported by the government, published a report proposing tokenized Japanese government bonds for on-chain repurchase agreements. The stated target is to capture 40% of Japan's JGB repo market, roughly 106 trillion yen, within a market currently estimated at about $1.6 trillion. A testnet based on the CC Network, scheduled from November to March, would link domestic and international repo and collateral platforms.
AMBCrypto argues that Japan already has meaningful participation in tokenized Treasury products. Japanese wallets hold 15.4% of unique U.S. Treasury token wallet holdings, although they represent only 0.4% of total value, or $61.7 million. Against that backdrop, BUIDL's total value has declined 4% to $2.17 billion and its holder count has fallen to 101. AMBCrypto suggests that entry into Japan could expand BUIDL's exposure and user base, though this is the publication's own assessment rather than a stated plan from the partners. Tokenization of Japan's domestic treasuries remains at the planning stage.
The initiative coincides with a broader Japanese government push to tokenize sovereign debt. According to AMBCrypto, citing Global Government Finance reporting from early August 2026, Japan is seeking to modernize its sovereign debt management. The Digital Asset Co-Creation Consortium, supported by the government, published a report proposing tokenized Japanese government bonds for on-chain repurchase agreements. The stated target is to capture 40% of Japan's JGB repo market, roughly 106 trillion yen, within a market currently estimated at about $1.6 trillion. A testnet based on the CC Network, scheduled from November to March, would link domestic and international repo and collateral platforms.
AMBCrypto argues that Japan already has meaningful participation in tokenized Treasury products. Japanese wallets hold 15.4% of unique U.S. Treasury token wallet holdings, although they represent only 0.4% of total value, or $61.7 million. Against that backdrop, BUIDL's total value has declined 4% to $2.17 billion and its holder count has fallen to 101. AMBCrypto suggests that entry into Japan could expand BUIDL's exposure and user base, though this is the publication's own assessment rather than a stated plan from the partners. Tokenization of Japan's domestic treasuries remains at the planning stage.
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