BlackRock, SBI Holdings and Startale have agreed to explore connecting tokenized money market funds with JPYSC, a Japanese yen-denominated stablecoin, in a new memorandum of understanding announced October 27. The proposed work targets the infrastructure, distribution and regulatory conditions needed for tokenized investment products to interact with on-chain cash.
The joint announcement published by Startale names BlackRock Financial Management and BlackRock Japan alongside the Japanese financial group and blockchain company. It does not announce a new BlackRock fund, a product launch date, or a completed connection to JPYSC.
Why money market funds matter
Money market funds invest in short-term, generally high-quality debt instruments and are commonly used by institutions to manage liquidity. Representing fund interests on a blockchain may create new ways to transfer, record or integrate them with other digital financial products, although the legal rights of investors continue to depend on the actual fund structure.
The proposed JPYSC connection addresses a separate component: a yen-denominated asset for potential payment and settlement. In theory, compatible on-chain cash and securities could reduce manual reconciliation between systems, but operational, legal and liquidity constraints remain important.
Three areas under review
The companies said they will study technical infrastructure to connect tokenized funds with JPYSC; business models and distribution opportunities; and regulatory questions surrounding broader market adoption.
The memorandum is intended as an exploratory arrangement that may also involve additional institutions. It should not be confused with an approved fund offering or an announcement that BlackRock is distributing tokenized Japanese securities through a particular exchange.
Japan’s stablecoin framework shapes the opportunity
Japan has established legal categories for stablecoin issuers under its payment legislation. Startale and SBI have been working on JPYSC-related infrastructure separately, while various financial institutions are exploring how digitally represented securities could fit into established custody and settlement systems.
BlackRock Japan President Yukiko Hashimoto described tokenization as opening new possibilities for financial markets in the companies’ joint release. The parties still need to define specific infrastructure and distribution structures before those ambitions can be tested in live workflows.
What investors should watch
The next meaningful milestone would be an identified tokenized fund structure, a technical pilot or a regulated product offering with clearly stated redemption rights. Until then, this is a partnership to investigate potential connections, not proof of new assets already trading.
BlockBriefing recently covered NEC and DFNS’s proposed institutional custody infrastructure and a survey of Japan’s corporate stablecoin awareness. These independent developments underscore both the opportunity and practical challenges, without implying the projects are connected.
Primary source: Joint announcement from Startale, SBI Holdings and BlackRock, October 27, 2026.