Japan is preparing to study a blockchain based settlement system that could eventually allow stock and Japanese government bond transactions to settle in real time and operate around the clock, according to a Nikkei report.
The initiative is expected to bring together the Financial Services Agency (FSA), Ministry of Finance, Bank of Japan (BOJ) and private financial institutions. A study group is expected to develop an initial plan as early as the beginning of 2027, covering the system’s technical design, institutional responsibilities and implementation roadmap.
If formally approved, the infrastructure could begin operating within several years and potentially reach broader implementation in the early 2030s. However, the project remains at the planning stage, and Japanese authorities have not announced a final decision to deploy the system.
Key Takeaways
- Japan is reportedly preparing a study group to explore blockchain settlement for publicly traded stocks and Japanese government bonds.
- The FSA, Ministry of Finance, BOJ and private financial institutions are expected to participate.
- An initial development plan could be completed in early 2027, with broader operations potentially beginning in the 2030s.
- The system would seek to reduce the delay between securities trades and cash settlement, potentially allowing investors to access proceeds much faster.
- The BOJ is already experimenting with blockchain-based settlement involving central bank current account deposits.
Japan Targets Faster Stock and Bond Settlement
Japan’s current securities infrastructure requires a delay between trade execution and final settlement. Stock transactions generally settle two business days after execution under a T+2 cycle, while Japanese government bond transactions typically settle on the following business day.
The proposed blockchain system would seek to shorten that period substantially by bringing the transfer of securities and the corresponding payment closer together. For investors, that could mean proceeds from selling securities become available for reinvestment much sooner. Financial institutions could also face a shorter period of counterparty exposure between execution and final settlement. The planned study is expected to examine the blockchain architecture, how responsibilities would be divided among government agencies and financial institutions, and a roadmap for developing the infrastructure.
According to Nikkei, the system could also eventually be extended to international remittances. However, faster settlement brings its own challenges. Market participants would have less time to secure the cash or securities needed to complete transactions, potentially creating new liquidity and operational requirements.
BOJ Already Testing Blockchain Settlement
The reported project would build on experiments already underway at the Bank of Japan.
BOJ Governor Kazuo Ueda said in March that the central bank was testing how commercial banks’ current account deposits at the BOJ could be used for settlement through blockchain infrastructure.
The work includes examining potential applications for domestic interbank transfers and securities settlement. One possible model involves tokenizing a portion of the central bank deposits that financial institutions already hold at the BOJ. Such an arrangement could support delivery versus payment settlement, where the securities and corresponding cash move simultaneously.
That distinction is important because Japan’s reported plan should not be interpreted as moving its stock or government bond markets onto a permissionless cryptocurrency network. The precise blockchain architecture has not yet been decided and is expected to be one of the issues addressed in the 2027 development plan.
Japan’s Financial Sector Expands Blockchain Experiments
The proposal also comes amid growing blockchain experimentation across Japan’s traditional financial sector. In April, Japan Securities Clearing Corporation, which is owned by Japan Exchange Group, began a trial with Mizuho, Nomura and Digital Asset examining the use of Japanese government bonds as collateral through blockchain infrastructure.
Japan’s private sector has also developed regulated tokenized securities platforms. Progmat, for example, has moved hundreds of billions of yen in managed tokenized securities onto dedicated blockchain infrastructure.
Meanwhile, SBI Holdings and Startale are developing Strium, a blockchain aimed at supporting around the clock trading of tokenized securities. Japan’s major banks have also been experimenting with stablecoins and tokenized deposits for payments and settlement.
These initiatives differ from the latest proposal because the reported government-backed study could eventually address infrastructure supporting mainstream stocks, government bonds and central bank money rather than individual tokenized products.
Early 2027 Plan Could Clarify the System
Several major questions remain unanswered. The study group would need to determine whether Japan should build a dedicated blockchain, connect existing regulated networks or integrate distributed ledgers with conventional market infrastructure. Governance, cybersecurity, privacy, interoperability and procedures for handling erroneous transactions would also need to be addressed.
Around the clock settlement could additionally require banks, securities firms and infrastructure operators to maintain liquidity and operational support outside existing market hours. The early 2027 development plan is therefore likely to be the first major indication of how ambitious the project will become.
Conclusion
Japan’s reported blockchain settlement initiative could bring distributed ledger technology significantly closer to the core infrastructure of one of the world’s largest financial markets. The immediate objective is to study whether stocks and government bonds can move from existing T+2 and next day settlement cycles toward faster, potentially around-the-clock settlement, with the BOJ’s blockchain experiments providing an important foundation.
For now, however, the project remains a proposal rather than an approved national settlement system. The development plan expected in early 2027 should provide greater clarity on the technology, participating institutions, testing process and timetable, while any early-2030s launch remains dependent on formal approval.
