Key takeaways
- The FSB tells the G20 that a global stablecoin run could spill over through reserve-asset fire sales.
- The FSB says the legal claims of stablecoin holders may be unclear in stress and insolvency across borders.
- The FSB puts the total stablecoin market near $300B as of mid-2026, with 99% pegged to the US dollar.
The Financial Stability Board (FSB), the global financial watchdog, warned in a note to the G20 that a run on a global stablecoin could spill into the traditional financial system through reserve-asset fire sales and bank deposit withdrawals to fund redemptions. The FSB said global stablecoins and national regulatory frameworks "remain untested in severe stress and insolvency."
The FSB said a run could also spread through dependencies on a stablecoin used for payment and settlement in the real economy, and through foreign exchange markets where stablecoins are used for cross-border transactions. The FSB note puts the total stablecoin market value at around $300B as of mid-2026, with 99% pegged to the US dollar.
Where a Run Could Concentrate
The FSB note lists the spillover channels in one sentence:
"A run on a global stablecoin could potentially spill over to the traditional financial system via reserve-asset fire sales and banking deposit withdrawals to fund redemptions, dependencies on a stablecoin used for payment and settlement in the real economy, and foreign exchange markets where stablecoins are used for cross-border transactions."
The FSB said that if holders can redeem with any issuer regardless of where their tokens were issued, redemption demand could concentrate on a single entity in the group.
The FSB presents these run channels as potential vulnerabilities that could or may happen, not as observed events.
Who Answers for Holders
The FSB said that if the location of some holders is difficult to ascertain, the attribution of liabilities to individual issuers and the legal claims of holders may be unclear in stress and in insolvency. The FSB also said it may be difficult to determine which national insolvency regime would apply to a global stablecoin.
The FSB put the governance problem this way:
"A global stablecoin arrangement may be managed across multiple entities and regulatory regimes, potentially complicating oversight, crisis management, accountability and cooperation in stress or insolvency."
Why It Matters
Picture an issuer based in one country, with reserves in a second and panicked redeemers in a third, and the FSB itself says the legal claims of holders may be unclear and the insolvency regime hard to determine. We think stablecoins brought fiat's counterparty risks onto the blockchain, wrapping bank deposits and reserve assets in a token while the issuer keeps the reserve and the holder keeps an IOU. The FSB note does not discuss Bitcoin, but the contrast is plain: bitcoin in self-custody has no issuer to run on, no reserve-asset fire sale and no insolvency regime to argue over, which makes Bitcoin the only escape hatch from that counterparty chain.
