Mentioned in This Article
1. What did BlackRock, SBI and Startale agree to?
BlackRock, SBI Holdings and Startale Group signed a memorandum of understanding on October 26, 2026, to study whether tokenized money market funds can be linked with JPYSC, a yen stablecoin issued in Japan. The signatories on the asset manager's side are BlackRock Financial Management and BlackRock Japan. The agreement is exploratory: it commits the parties to examine the idea, not to launch a product.
A memorandum of understanding is a non-binding statement of shared intent. It usually sets out the topics two or more organizations plan to work on together, without fixing deadlines, budgets or deliverables. That description fits this arrangement. The companies have named the areas they will investigate, yet none has announced a launch date, a pilot size or a list of products. The announcement states plainly that no integration with JPYSC has been confirmed.
Even so, the combination of names is notable. BlackRock is the world's largest asset manager and already operates tokenized products. SBI Holdings is a Japanese financial group whose banking arm issues JPYSC. Startale Group is the technology partner that has worked with SBI on the stablecoin's engineering and trials. Putting the three at one table suggests the question under study is a practical one: how a regulated fund product and a regulated payment token might work side by side.
2. Which areas will the partners examine?
The partners have divided the exploration into three workstreams: technology and infrastructure, business and distribution, and regulation and market development. Each reflects a different obstacle that any tokenized fund and stablecoin pairing would have to clear before reaching customers.
The technology workstream is about mapping what an integration would require. That includes the infrastructure that would let tokenized money market funds interact with JPYSC, such as the way tokens are issued, transferred and redeemed, and how a payment in stablecoin could be matched to a purchase or redemption of fund shares. Questions of this kind are often more demanding than they look, because a fund and a payment token are normally governed by different systems, different record keepers and different operating hours.
The business and distribution workstream looks at possible business models and the channels through which a combined offering could reach investors. The companies said they would draw on each firm's existing networks and market access. In practice this means asking who would hold the customer relationship, who would sell the product and how each participant would be compensated.
The third workstream, regulation and market development, covers the rules and market conditions that would shape any eventual product. Fund shares and stablecoins are regulated under separate frameworks in most jurisdictions, and a product that touches both must satisfy each. Studying that overlap early is a sensible step before any engineering commitments are made.
None of the three workstreams can be finished in isolation. A technical design depends on what regulators allow, and a distribution plan depends on what the technology can deliver. The memorandum gives the companies a framework for examining those dependencies together rather than one after another.
3. What is a tokenized money market fund?
A money market fund is an investment fund that holds cash and short-term, low-risk instruments, and it is widely used by institutions as a place to hold spare cash while earning a modest return. A tokenized version represents the shares of such a fund as tokens recorded on a blockchain, so the shares can be moved and settled in a manner closer to that of digital assets.
The appeal is operational. Traditional fund transactions pass through intermediaries, cut-off times and settlement cycles. Recording ownership on a blockchain can shorten that chain and, in principle, allow transfers at any hour. For a fund whose purpose is to hold cash-like assets, faster and more flexible movement is a natural thing to want.
BlackRock is not new to this field. The firm already runs tokenized products, including its BUIDL fund. The Japan memorandum therefore does not introduce tokenization to the company; it asks whether a tokenized fund can be connected to a local-currency stablecoin in one of the world's largest financial markets.
For investors, the appeal of such a fund is its simplicity. It aims to preserve principal while paying a return close to short-term interest rates, which is why corporate treasurers and asset managers use these funds as a parking place for cash. Placing that familiar product on a blockchain does not change what the fund holds; it changes how ownership is recorded and transferred.
4. Why pair a fund with a stablecoin?
A stablecoin can act as the cash leg of a tokenized fund transaction, and that is the main reason the pairing is attractive. If an investor holds a yield-bearing fund token and wants to move into a payment token, or the reverse, a stablecoin allows the exchange to happen without relying on traditional banking rails.
Consider the alternative. Today, buying fund shares generally involves sending money through a bank transfer and waiting for it to clear, then waiting again for the fund to process the order. When both the fund share and the cash are tokens on a shared network, the two sides of the trade can in principle settle together. This is the use case the partners have in mind, and it explains why a yen-denominated token, rather than a dollar one, is the focus of this study.
The currency matters. A yen stablecoin lets Japanese investors and institutions hold and move value in the unit they already use for their obligations, avoiding exchange-rate exposure that a dollar token would introduce. For a global manager looking to serve clients in Japan, a local-currency settlement asset could make a tokenized fund considerably easier to use.
There is also a question of trust. A stablecoin used for settlement must hold up under stress, since a payment token that wavers in value would defeat the purpose of using it as cash. That is why the trust-account structure and the regulatory classification behind JPYSC matter to this discussion, and why the partners placed regulation and market development alongside the technical work.
5. How does JPYSC work?
JPYSC launched on June 24, 2026, as Japan's first trust-type yen stablecoin. It is issued by SBI Shinsei Trust Bank, and the reserves that support it are held in segregated trust accounts. Segregation means the backing assets are kept apart from the issuer's own funds, which is intended to protect holders if the issuer runs into difficulty.
Under Japanese rules, the token is designated a Type III Electronic Payment Instrument. That classification places JPYSC inside an existing legal framework rather than leaving it in a gray area, which is one reason a firm as cautious as a large asset manager can consider working with it. For institutions, a defined regulatory status is often a precondition for any serious discussion.
SBI and Startale have also tested the token's capabilities. They ran proof-of-concept projects on an Ethereum (ETH) testnet that showed JPYSC handling near-instant settlement. The trials also demonstrated automated on-chain dividend distribution for a tokenized equity fund valued at about $1.3 billion. That fund is an equity product rather than a money market fund, so the trial does not directly prove the model the new memorandum describes, but it shows the token working in a fund-related setting.
Because the reserves sit in trust accounts, the structure differs from stablecoins backed by a pool of assets held directly by a private issuer. The trust form places a regulated bank in the role of custodian and issuer, which is a familiar arrangement for institutional counterparties and one that fits the way Japanese financial law treats payment instruments.
6. What does the agreement not yet tell us?
The memorandum leaves several questions open. There is no timetable, no named product, no stated investment size and no confirmation that an integration between a BlackRock tokenized fund and JPYSC will be built. The announcement describes an exploration, and exploratory work can end in a launch, a narrower pilot or no product at all.
Readers should also be careful not to treat the agreement as an endorsement of any particular token or fund. It records that three large organizations consider the question worth studying together. That is meaningful as a signal of interest from a major asset manager in Japan's regulated stablecoin market, but it is not a commitment of capital or a guarantee of regulatory approval.
Regulatory treatment is the least predictable element. A product combining a fund and a stablecoin must satisfy the rules for each, and the third workstream exists precisely because those rules may not line up neatly. Until the regulation and market development work produces conclusions, any estimate of when investors could use such a product would be guesswork.
Seen this way, the memorandum is best read as the first stage of a longer process. It establishes who is involved, what is being studied and where the main uncertainties lie, while leaving every substantive decision to later stages.
7. What happens next?
The next visible step is the work the memorandum itself sets in motion: the technical mapping, the commercial analysis and the review of regulation and market development. The companies have not published a date for results or for further announcements, so observers will have to wait for follow-up statements from SBI, Startale or BlackRock.
If the study concludes that a link is feasible, the natural progression would be a limited pilot, probably tested in a controlled environment before reaching customers, much as SBI and Startale first ran JPYSC trials on a testnet. Whether that happens, and on what schedule, remains undisclosed.
For the wider market, the agreement adds to a growing set of experiments in which established financial firms test how blockchain-based funds and regulated stablecoins can settle against each other. Its significance will depend on what the three partners decide to build after the exploration ends, and on whether regulators in Japan and elsewhere accept the structure that results.