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Sumitomo Mitsui Trust Bank has started a proof of concept to issue tokenized interests in a Cayman Islands money market-type fund.
The Japanese trust bank is using the pilot to prepare for a possible full digital securities issuance in fiscal 2026, subject to regulatory and operational checks.
Pilot Tokenizes Cayman Fund Interests
The project will tokenize beneficial interests in selected share classes of a Cayman Islands-domiciled fund.
The tokens will be classified as digital securities under Japan’s Financial Instruments and Exchange Act. Sumitomo Mitsui Trust Bank will handle tokenization, issuance and redemption with support from Securitize Japan and Fireblocks.
The underlying vehicle is described as a money market-type fund investing in liquid, low-volatility assets such as short-term bonds and cash. The bank said the product is not an MMF under domestic rules set by the Investment Management Association of Japan.
Group Companies Will Run Fund Operations
Several Sumitomo Mitsui Trust Group companies and partners will divide the operating roles. Amova Asset Management UK is expected to manage the investments. G.A.S. (Cayman) will act as trustee, while SMT Fund Services (Ireland) will handle fund administration and transfer-agent duties.
Sumitomo Mitsui Trust Bank (U.S.A.) will provide global custody services. The Japanese bank will remain responsible for issuing and redeeming the tokenized interests.
Fiscal 2026 Issuance Remains Conditional
Sumitomo Mitsui Trust Bank plans to use the proof of concept to examine investor protection and other risks tied to public blockchains. The group said a completed issuance could be the first time a Japanese trust bank has tokenized interests in a foreign investment trust on a public blockchain. The group said that claim is based on its own research.
The announcement does not confirm that tokens have already been issued. It also does not name a launch date, expected fund size, investor eligibility rules or subscription minimum. The bank’s release refers only to a public blockchain. It does not identify Ethereum, despite reports describing the project as Ethereum-based.
Stablecoin Settlement Remains Prospective
The group said the pilot could support a future open tokenization platform for asset managers, distributors and Web3 companies.
Possible future functions include delivery-versus-payment settlement using stablecoins, automated interest accrual through smart contracts and round-the-clock cross-border transactions. Those services remain prospective. They are not part of a confirmed commercial launch.
