Japan is moving closer to a possible major change in how financial markets settle trades. According to Nikkei, the country wants to study a blockchain system that could process stock and government bond transactions around the clock. The Financial Services Agency, the Ministry of Finance, the Bank of Japan and private financial institutions are reportedly set to form a study group in summer 2026. The initial development plan would follow in early 2027.
Why settlement times matter
Right now, Japanese stock trades settle on a T+2 basis. That means cash changes hands two business days after the trade. Government bonds usually settle the next business day. A blockchain-based system could bring securities transfer and cash payment closer together, giving investors quicker access to proceeds. It might even allow them to reinvest almost immediately.
Faster settlement also reduces the time counterparties are exposed to each other. But it creates new challenges. Banks and brokers would have less time to line up cash or securities. That could mean new liquidity and operational demands.
The Bank of Japan is already testing similar ideas
The reported plan would build on work the BOJ has already started. Governor Kazuo Ueda said back in March that the central bank was testing settlements using current account deposits on blockchain. That work looks at wholesale central bank digital currency, or tokenized deposits. One aim is delivery-versus-payment settlement, where securities and cash move at the same time.
This is separate from the retail digital yen project. The BOJ continues technical research on a possible retail CBDC, but the government has not decided whether to issue one.
Private sector projects are further along
Japan’s private financial sector has not waited for the government. Progmat recently moved 452 billion yen in managed tokenized securities to an Avalanche network. SBI Holdings and Startale are building Strium, a blockchain intended for 24/7 tokenized securities trading, with a public test network planned for 2026.
The government initiative is broader than these private efforts because it could touch mainstream stocks, government bonds and central-bank money. Separately, Japan’s three largest banks are working on a shared yen stablecoin framework, targeting live transactions by March 2027.
What happens next
A lot remains uncertain. The study group needs to decide whether to build a new blockchain, connect regulated networks, or link distributed ledgers with existing systems. It also has to address governance, security, privacy and what happens when an unauthorized transfer needs to be reversed. Around-the-clock trading would also require institutions to provide support beyond normal market hours.
As of Wednesday, none of the three government institutions had issued a formal announcement about the study group. The early 2030s launch date is still a reported target, not an approved plan. The next real milestone will be an official statement naming the participants and the group’s mandate.
Until those documents appear, this remains an idea with strong momentum, but not yet a confirmed project.
