What yen-denominated stablecoins, digital securities and the evolution of Bitcoin treasury companies reveal about Japan’s next phase
Japan’s Bitcoin market can no longer be assessed through price and trading volume alone.
In the second quarter of 2026, market sentiment remained subdued even as regulation, yen-denominated stablecoins, tokenised assets and securities distribution infrastructure advanced. Four Pillars’ Japan Crypto Market Report, Q2 2026 describes this divergence between market sentiment and regulatory progress as a defining feature of the Japanese market.
The important point is that demand for Bitcoin has not disappeared. For institutions, miners and companies holding Bitcoin on their balance sheets, the question is beginning to shift from whether to own Bitcoin to how those holdings can be used as financial assets without compromising risk controls.
Several components required for that transition are now emerging in Japan at the same time:
- Settlement through yen-denominated stablecoins
- Financial products that use Bitcoin as collateral or credit support
- Rights management through security tokens
- Product distribution through regulated securities firms and crypto-asset exchanges
- Delivery-versus-payment, lending and settlement on public blockchains
These developments can look like separate news stories. Taken together, however, they suggest that Japan’s Bitcoin market is beginning to move beyond trading and long-term holding towards a financial market with settlement, collateral, credit and securities infrastructure.
Yield Is Not the Main Constraint on Institutional Bitcoin Products
The desire to earn a return on Bitcoin holdings is understandable. Miners need working capital. Exchanges and financial institutions have incentives to broaden their product offering. Bitcoin treasury companies must also consider the capital efficiency of the BTC on their balance sheets.
Yet a high annual percentage yield is not enough to support an institutional investment decision.
Before allocating capital, an institution needs answers to questions such as:
- Where is the BTC held?
- Who has the authority to move it?
- Must the strategy use a wrapped asset or bridge?
- Who absorbs losses if a borrower or strategy provider fails?
- How are liquidity and early redemption managed?
- How can an auditor verify the existence of the BTC and its transaction history?
- How is the product treated for legal, accounting and tax purposes?
The central challenge in institutional Bitcoin yield is therefore not yield generation itself. It is the ability to combine custody, credit, auditability and liquidity within a single structure that can be independently verified.
Even where an attractive gross return exists, custody costs, insurance or principal-protection costs, management fees, liquidity reserves and reporting expenses must still be paid. What ultimately determines the quality of the product is not its headline yield, but its capital stack: who receives the return, who bears each risk and in what order losses are absorbed.
Yen-Denominated Stablecoins Are Becoming Capital Markets Infrastructure
Japan’s yen-denominated stablecoin market is moving from policy discussion towards practical implementation.
In June 2026, SBI Group launched JPYSC, a trust-based yen stablecoin issued by SBI Shinsei Trust Bank and distributed by SBI VC Trade. At launch, JPYSC was available within SBI VC Trade accounts. SBI has said that it intends to move towards circulation on public blockchains once the relevant legal and tax treatment has been sufficiently established.
This phased approach may become an important model for Japanese onchain finance. Rather than opening every function to public blockchains from the first day, a product can begin in an environment where identity checks, asset safeguarding, redemption and transaction records are controlled, then expand as use cases and regulatory practice mature.
Initiatives surrounding JPYSC also point towards foreign-exchange liquidity, real-world asset settlement, lending and collateral use. JPYSC should therefore be understood as more than a yen version of a dollar stablecoin. It could become a yen-denominated settlement, liquidity and collateral layer connecting Japanese assets to onchain markets.
In parallel, companies are exploring digital credit products that use JPYC. Although their names are similar, JPYC and JPYSC are different yen-denominated stablecoins with different issuers and legal structures. Institutions should examine each asset’s redemption terms, supported networks, safeguarding arrangements and regulatory classification rather than relying on the name alone.
Price stability also does not remove principal risk. Once a stablecoin is lent in return for yield, the investor must assess the borrower’s credit, the investment term, liquidity constraints and the allocation of losses. Stable value and risk-free return are not the same thing.
SBI and Metaplanet Are Approaching the Same Problem From Different Directions
Another important development in Japan is the emergence of regulated distribution for onchain financial products.
SBI Group is bringing together stablecoin issuance through a trust bank, distribution through a licensed exchange, foreign-currency stablecoins, tokenised Japanese assets, lending services and domestic and international exchange networks.
The result is the outline of a vertically integrated financial stack:
- Issuance and safeguarding of yen-denominated assets
- Distribution to verified accounts
- Onchain yen and dollar liquidity
- Purchase, redemption and delivery-versus-payment settlement of real-world assets
- Lending, collateral and asset management
- Distribution to investors in Japan and abroad
Metaplanet is approaching the market from another direction. In June 2026, the company announced an agreement to acquire all shares in Siiibo Securities, a registered Type I Financial Instruments Business Operator. The renamed Metaplanet Securities has outlined plans for Bitcoin-related products, digital securities, venture debt, corporate bonds and income-oriented investments.
The acquisition illustrates a possible next stage in the evolution of a Bitcoin treasury company.
Holding Bitcoin is not enough to distribute an investment product. Product structuring, suitability assessments, disclosure, distribution, interest payments and redemption require regulated securities capabilities and direct access to investors.
SBI is moving towards onchain finance from banking, trust and exchange infrastructure. Metaplanet is approaching it from Bitcoin treasury management and securities distribution. Their starting points differ, but the underlying problem is the same:
Digital assets must not only be issued or held. They need infrastructure that can structure them as regulated financial products and distribute them to investors.
Metaplanet, Metaplanet Securities, JPYC and Progmat have also announced a joint study of digital credit products combining Bitcoin, yen-denominated stablecoins and security tokens. The areas under consideration include using Bitcoin as an underlying or credit-support asset, managing rights through security tokens, and using stablecoins for onchain interest payments, redemption and distributions.
The initiative remains at the study stage. No specific issuance, yield or launch date has been confirmed. Nevertheless, it is significant that the integration of Bitcoin, stablecoins and digital securities is now being considered in a concrete Japanese financial-market context.
Mining Finance Can Connect Bitcoin Yield to Productive Economic Activity
Bitcoin yield does not have to originate solely from trading activity in decentralised finance.
Bitcoin miners incur costs for electricity, equipment, data centres and staff before receiving revenue from newly mined BTC. Capital providers can finance those operating costs in exchange for interest or a Bitcoin-denominated return.
This structure can be easier for institutions to assess. The source of the yield is a financing need within the Bitcoin economy rather than a short-term token incentive or an assumption that more market participants will arrive.
Mining finance is not low-risk. Its economics depend on the Bitcoin price, network difficulty, energy costs, equipment efficiency, local regulation and operational continuity. The objective should not be to present mining as safe merely because it is a physical business. The objective is to make the source of return and every path to loss visible.
A market connecting miners, Bitcoin holders and financial institutions requires:
- Funding in BTC or fiat currency
- Continuous monitoring of mining revenue and collateral
- Defined margin-call and liquidation procedures
- Controls over BTC custody and transfer authority
- Auditable contracts, interest payments and repayment records
- Enforceable collateral arrangements in the event of default
An execution layer capable of treating Bitcoin as a programmable financial asset could help automate these processes and improve transparency.
The Role of Bitcoin Layer 2 Networks
The purpose of a Bitcoin layer 2 network is not to replace Bitcoin layer 1.
Bitcoin layer 1 provides the foundation for high-value asset transfers and final settlement. Lending, collateral management, stablecoin settlement, security tokens, distributions and liquidation, however, require a more flexible execution environment.
Bitcoin-based smart-contract layers such as Rootstock provide one possible way to connect Bitcoin’s economic value with programmable financial transactions.
For institutional markets, however, general statements about Bitcoin security or decentralisation are not sufficient. Any implementation must explain:
- How BTC enters and exits the execution layer, including residual bridge risk
- What happens if a bridge or signing system becomes unavailable
- How smart contracts are audited and who controls upgrades
- How responsibility is divided among the stablecoin issuer, custodian and borrower
- How the system connects to regulated on- and off-ramps
- How transaction history, balances and collateral status are reported
Institutions do not require a world in which no risk exists. They require risks that can be identified, measured and allocated contractually.
Quiet Markets Are the Time to Build Practical Infrastructure
Y Combinator made a similar observation in its 2026 Requests for Startups: weaker prices and market sentiment can create better conditions for builders to focus on genuine demand in stablecoins, capital markets and institutional products rather than short-term speculation.
The same logic applies in Japan, but optimism about another crypto cycle is not enough. The priority should be financial infrastructure that connects yen settlement, Bitcoin collateral, custody, securities distribution and auditability without forcing end users to think about bridges or gas.
Questions Market Participants Should Ask
Institutions and financial service providers
- Who ultimately pays the yield?
- Which assets and counterparties create the credit exposure?
- Who legally owns the BTC, stablecoin or security at each stage?
- Can auditors and compliance teams independently verify the records?
- Are early redemption, default and system-outage procedures defined?
Companies holding Bitcoin
- Must the BTC leave the company’s existing custody arrangement?
- How will collateralisation affect accounting and control?
- Is the expected return proportionate to the additional credit, technology and liquidity risk?
- Can the structure be explained to the board, auditors and shareholders?
- Can it be tested first with a small amount of the company’s own assets?
Bitcoin miners
- Are funding costs and downside conditions clearly defined?
- Is the collateral mining equipment, BTC or future revenue?
- How frequently must production and electricity costs be reported?
- What effect could liquidation have on business continuity?
- Is it more appropriate to borrow and repay in fiat currency or BTC?
Japan Does Not Lack Demand; It Lacks Conversion Infrastructure
Demand exists in Japan to hold Bitcoin, improve the productivity of BTC holdings and offer Bitcoin-related financial products.
What remains scarce is the infrastructure that converts this demand into products that meet regulatory, custody, audit and liquidity requirements.
Yen-denominated stablecoins can provide settlement. Securities firms can structure and distribute products. Security tokens can improve rights management and distributions. Bitcoin layer 2 networks can make collateral, lending and liquidation programmable.
Japan’s next Bitcoin market will not be built by companies offering these elements in isolation. It will emerge when banks, trust companies, securities firms, exchanges, custodians, miners, Bitcoin treasury companies and protocols can connect while maintaining clear responsibility for each risk.
The era of holding Bitcoin is not ending. Japan’s next phase will be defined by how safely and transparently that Bitcoin can be incorporated into auditable financial infrastructure.
Sources
- Four Pillars — Japan Crypto Market Report, Q2 2026
- Y Combinator — The Best Time to Build in Crypto
- Financial Services Agency — Bills Submitted to the Diet
- Financial Services Agency — Cryptoasset and Electronic Payment Instrument Intermediary Framework
- SBI Group — Launch of JPYSC
- SBI Group — JPYSC Lending
- SBI Group — Tokenisation of a Japanese Equity Fund
- Metaplanet — Disclosure Concerning the Acquisition of Siiibo Securities
- Metaplanet Securities
This article is provided for informational purposes only and does not constitute investment, legal, tax or accounting advice.