FSB Tells G20 Global Stablecoins Remain Untested in a $300 Billion Market

A $300 Billion Market Untested Under Stress

The Financial Stability Board published a note on October 12 that finds global stablecoins and the national frameworks governing them "remain untested in severe stress and insolvency." The Basel-based body of national financial authorities and standard setters submitted the document to G20 finance ministers and central bank governors at the request of the U.S. G20 presidency, ahead of their meeting on Thursday, October 15. It sets no new rules. The note consolidates the FSB's ongoing work on cross-border risk and stablecoin data, and it arrives while the market it describes has gone sideways: the FSB puts the total stablecoin market at roughly $300 billion as of mid-2026, little changed over 12 months, with 99% of value tracked to the U.S. dollar. Most of that supply circulates against crypto trading activity. The board's message to G20 principals is blunt: stablecoin arrangements are inherently cross-border, national regulations are taking shape at different speeds, and cross-border cooperation in this area is, in the chair's words, "still in its infancy." Supervision, the FSB argues, has to work across borders, and implementation of its 2023 recommendations has not caught up with how these tokens actually circulate.

Redemption Risk in Multi-Issuer Coins

The core of the note is a warning about redemption mechanics. Unlike a bank, which knows its depositors, a stablecoin issuer may have no view of who holds its tokens or which country a redemption request will come from. Round-the-clock secondary trading can accelerate a sell-off once confidence cracks, while reserves and holders' legal protections can stay tied to single jurisdictions. If a globally used coin failed, the document says it may not even be clear which national insolvency regime would govern the outcome, and a sudden surge of redemption demands could force reserve sales that spill over into banks and money markets. The sharpest concerns attach to multi-issuer structures, where affiliated companies in several countries share liability for one token but each holds its own reserves. Because holders can typically redeem with any affiliate, requests could converge on a single issuer, and shifting reserves across borders to meet that demand may run into frictions precisely under stress, when holders' locations and legal claims are hardest to pin down. The FSB proposes building indicators that track holder distribution, redemption patterns and the geographic spread of reserve assets so supervisors can see cross-border exposure before a failure, not after.

Chair Letter Presses Faster Implementation

Alongside the note, FSB Chair Andrew Bailey, who also serves as governor of the Bank of England, sent a letter to the G20 dated October 8 arguing that mechanisms for cross-border crisis management and cooperation in stress or insolvency "remain immature or are not yet developed." The letter frames the gap plainly: countries have implemented the FSB's 2023 stablecoin recommendations at uneven speeds, and many jurisdictions still lack clear rules for how coins issued abroad should be treated or which authority responds in a crisis. Data is a second weak point. Authorities rely mostly on private data compilers whose methods differ, and pseudonymous blockchains often leave supervisors unable to establish what stablecoins are used for or where their holders sit. The note lists three areas that may warrant continued consideration: closer monitoring of cross-border vulnerabilities, deeper information-sharing under the 2023 framework, and collecting information on how jurisdictions plan for distress or failure. FSB decisions are not legally binding, and the document stops short of proposing a crisis plan of its own. The call echoes an April 20 speech by the Bank for International Settlements governor, who warned that divergent national rules risk market fragmentation and regulatory arbitrage. In a 2023 report prepared for the G20, the FSB and the International Monetary Fund also advised against blanket bans on crypto.

Three Work Streams, No New Rules

Our reading: the significance here is agenda-setting, not rulemaking. FSB output binds no one, but the note hands G20 principals a shared factual record days before they meet, and it puts multi-issuer run risk on the record at the highest policy level for the first time. The concern is structural, not cyclical: redemption plumbing and reserve geography, the same weak points that broke algorithmic stablecoins in earlier cycles, now sit inside reserve-backed dollar coins that dominate 99% of the market. What matters next is whether the three work streams acquire deadlines, whether national regulators begin requiring issuers to disclose redemption capacity and reserve locations, and whether the October 15 meeting produces a mandate rather than another round of monitoring. The direction of travel, consistent with the 2023 FSB-IMF position, is harmonized supervision, not prohibition.