Nomura, Daiwa, Japan’s Big 3 Banks to Test Stablecoin Securities Settlement

Why It Matters

If successful, the PoC could slash settlement times and operational costs, positioning Japan as a leader in blockchain‑enabled capital markets. It also signals regulatory openness to digital assets, encouraging broader industry adoption.

Key Takeaways

• Nomura, Daiwa partner with MUFG, SMBC, Mizuho
• PoC uses joint “3 Mega SC” stablecoin
• Goal: atomic settlement of securities and stablecoins
• Trials run in FSA Fintech PoC sandbox
• Could accelerate blockchain adoption in Japanese capital markets

Pulse Analysis

Japan’s financial sector is testing the limits of distributed ledger technology by pairing traditional securities with a purpose‑built stablecoin. The “3 Mega SC” token, co‑issued by MUFG, SMBC and Mizuho, provides a fiat‑backed digital bridge that can move value instantly across the blockchain. By situating the experiment within the FSA’s Fintech PoC Hub, regulators can monitor risk, ensure compliance, and refine guidance for future digital‑asset initiatives, creating a controlled environment for innovation.

The technical ambition centers on atomic settlement—simultaneous exchange of digital cash and securities without settlement lag. Leveraging smart contracts, the PoC synchronizes on‑chain token transfers with conventional book‑entry updates for a range of instruments, from government bonds to listed equities. While the announcement avoids the term “tokenization,” the underlying architecture hints at a hybrid model where blockchain records act as a ledger overlay rather than fully replacing legacy securities registries. This approach mitigates legal uncertainty while still delivering the speed and transparency benefits of DLT.

Should the trial demonstrate reliable, cost‑effective settlement, it could reshape Japan’s market infrastructure. Faster, near‑real‑time clearing would reduce counterparty risk and free capital for trading activities, enhancing market liquidity. Moreover, a successful sandbox outcome may prompt other Asian economies to adopt similar frameworks, intensifying competition for blockchain leadership. Investors, custodians, and technology providers will watch closely, as the results could set a benchmark for integrating stablecoins into mainstream financial workflows worldwide.