Japan's Megabanks Push Yen Stablecoin, Challenge Dollar Dominance

Three of Japan's largest banks said they will jointly issue a stablecoin this financial year, which ends in March. Mitsubishi UFJ Financial Group (MUFG), Sumitomo Mitsui Financial Group (SMBC) and Mizuho Financial Group will establish a council to explore operational frameworks and prepare for issuance, according to a statement on MUFG's website.

The three banks will act as "joint settlors and a trust bank or similar institution will act as trustee," the statement said. That design separates issuance from custody of reserves, a structure that mirrors trust-based models floated in some US stablecoin proposals. Japan's Financial Services Agency signaled support for the development of a yen stablecoin by the three banks last November. The ruling Liberal Democratic Party later said the state should promote usage of yen-based tokens.

Yen-pegged stablecoins account for less than $50 million of the $311 billion stablecoin market. The largest, JPYC, has a market cap of around $18 million and is issued by a Tokyo-based fintech of the same name. The entry of three megabanks with combined assets over $3 trillion could shift that dynamic. The council has not yet announced a specific issuance date or token name.

The banks' Alpha Scores reflect moderate positioning overall: MUFG at 57, SMFG and MFG both at 59. The stablecoin initiative does not directly affect their core lending businesses. It does open a new revenue stream in digital asset custody and settlement.

The New York State Department of Financial Services released a proposed regulation for stablecoin issuers on June 9, turning 2022 guidance into formal rules. The proposal requires multi-custodian reserve holdings and monthly CEO/CFO certification of reserve composition. Japan's trust-based model offers a different path – one that relies on a single trustee rather than multiple custodians. NYDFS's proposed rules would also strengthen risk-management obligations covering security, internal controls, and oversight of external service providers.

Which regulatory approach gains traction will depend on how each jurisdiction handles redemption risk and reserve transparency. The council's next step is to define the operational framework. No specific issuance date or token name has been announced.