Dollar/yen volatility exposes stablecoin currency risk

Then there is JPYSC, a trust-type yen stablecoin launched by SBI Group in 2026 alongside partners including Startale. Yen-stablecoin issuance and adoption picked up meaningfully in late 2025 and have continued growing through 2026.

BIS research has identified a correlation between USD-pegged stablecoin flows and exchange-rate volatility in emerging markets. Recent dollar/yen movements have not triggered acute de-pegging events in major stablecoins. Neither USD-pegged tokens nor the newer yen-pegged alternatives broke their pegs during the latest volatility.

Market interventions add another wrinkle. As USD/JPY approached multi-decade highs around 160, authorities stepped in. These interventions create sudden, sharp moves in the underlying currency pair. If you hold a yen-pegged stablecoin and the Bank of Japan decides to burn through billions in reserves to defend the currency, the value of your token in dollar terms can shift dramatically within hours.

Japan's amended Payment Services Act creates clear rules for issuance, reserve requirements, and oversight. For enterprise users, a Japanese logistics company paying suppliers domestically gains nothing from denominating those payments in dollars. A yen-pegged stablecoin removes the FX conversion step entirely, reducing both cost and risk.

Analysts caution that these yen-pegged tokens could still expose users to JPY/USD fluctuations if their reserves or redemption processes face pressure during periods of acute stress.