Stablecoins May Boost Demand in Japan’s $9T Bond Market

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TOKYO, Nov 13 2025 – Japan’s $9 trillion government bond market may be entering a gradual shift as Japan stablecoin bond demand begins to emerge, with issuers of yen-based stablecoins appearing as new buyers of Japanese government bonds (JGBs). The change comes as the Bank of Japan (BOJ) continues to scale back its heavy bond purchases.

JPYC Inc., which launched a yen-pegged stablecoin in late October, plans to place most issuance proceeds into JGBs. About 80% will go into government bonds, with the rest kept in bank deposits. The company aims to issue up to ¥10 trillion ($66 billion) over the next three years. Chief Executive Noritaka Okabe said the effect on the bond market will depend on how quickly stablecoin usage grows.

The BOJ has dominated the JGB market for more than a decade. It now holds roughly half of all outstanding bonds. As the bank reduces its purchases, investors are watching how the market adjusts. Recent auctions for super-long JGBs have drawn weaker demand, including some of the lowest bid-to-cover ratios in months.

Stablecoin issuers need to hold safe assets to maintain a one-to-one link with the yen. In Japan, these reserves must be fully backed by high-quality instruments, including JGBs. If yen stablecoins grow, they could become a small but steady source of bond demand. Okabe said yen-based tokens need scale to remain relevant in global digital payments, where dollar-pegged stablecoins dominate.

Japan’s government is supporting the development of stablecoins. Finance Minister Shunichi Suzuki said the government backs a project by major banks to issue yen-denominated tokens. The plan aims to modernise payment systems and keep Japan aligned with global trends in digital finance. Mitsubishi UFJ, Sumitomo Mitsui, and Mizuho are all involved. Their participation could increase issuance volumes in the coming years.

Analysts say stablecoin-driven bond buying behaves differently from traditional demand. Banks and insurers follow balance-sheet rules or interest-rate expectations. Stablecoin issuers respond to token issuance and redemption. When token demand rises, they buy more bonds. When redemptions increase, they may need to adjust holdings. This pattern may not always match broader market signals.

For now, stablecoin issuance remains small. Even if JPYC reaches its three-year target, the total would represent less than 1% of the JGB market. Analysts say stablecoins need far more scale before replacing a noticeable share of BOJ demand. Some also warn that deposits may shift from banks into digital tokens, potentially affecting funding conditions.

Japan requires stablecoin reserves to be held in trust at regulated institutions. Officials say the rules reduce credit risk and protect users. Regulators are expected to refine oversight as issuance expands, focusing on liquidity buffers and redemption practices.

Even so, the link between digital assets and the JGB market is growing. As the BOJ continues to step back, private stablecoin issuers may become a small but steady new source of demand for government bonds. Investors say yen-based tokens could eventually play a role in long-term yield behaviour, though the effect is likely to develop slowly.

Stablecoins will not replace a large share of BOJ buying soon. But their rise marks a gentle shift in how the JGB market absorbs supply. Digital-asset issuers are beginning to join banks, insurers and the central bank as participants in one of the world’s largest government bond markets.t bond markets absorbs supply.

Recap

• Japan’s $9T bond market is seeing new demand from yen-based stablecoins.
• JPYC plans to invest up to 80% of issuance proceeds in JGBs.
• BOJ is reducing purchases after years of heavy buying.
• Major banks are preparing to issue their own yen stablecoins.
• Stablecoin demand is small today but could grow over time.
• Any impact on yields will likely develop gradually.