ECB Official Warns Stablecoins Risk Runs and Could Strengthen Dollar Dominance

A top European Central Bank official has issued a blunt wake-up call: stablecoins, now moving into mainstream finance, carry the same structural weaknesses that once toppled money market funds—and their explosive growth could quietly cement the US dollar’s dominance at the euro’s expense. Isabel Schnabel, a member of the ECB’s Executive Board, made the remarks at the Bank of Korea International Conference in Seoul on June 1. Schnabel drew a direct line between today’s large stablecoins and the money market funds of the 1970s and 2000s: both park investors’ cash in short‑term “safe” assets, promise redemptions at or near par, and operate largely outside the regulated banking system. That combination, she warned, leaves them vulnerable to runs and forced fire sales—the very dynamics that froze short‑term funding markets after the Reserve Primary Fund broke the buck in 2008. Schnabel put the global stablecoin market at roughly $300 billion, with Tether and USDC making up about 90% of that total. Euro‑denominated tokens are still tiny—only around €500 million combined—and roughly 85% of stablecoin transaction volume remains inside crypto trading venues rather than in broader payments or financial markets. Those facts matter: with nearly all stablecoins denominated in dollars, their expansion could deepen dollar dominance and chip away at the euro’s role in tokenized finance. Regulators are already responding. Under the EU’s Markets in Crypto‑Assets (MiCAR) rules, euro‑area stablecoins must keep a minimum portion of reserves in bank deposits—30% for regular issuers and 60% for systemically significant ones. Schnabel said these rules boost reserve liquidity but reduce issuer profitability, illustrating the tradeoffs between stability and commercial viability. The ECB’s strategic response goes beyond regulation. Schnabel framed the bank’s approach as twofold: set guardrails for private stablecoins and develop a public alternative. That public push includes work on a consumer‑facing digital euro and a wholesale central bank digital currency through projects named Pontes and Appia. The message: eurosystem authorities plan to compete on infrastructure and technology, not simply police the sidelines. For crypto builders and market participants, Schnabel’s comments are a clear sign the regulatory and competitive landscape is shifting fast. Stablecoins are no longer a fringe experiment—policymakers see them as a potential source of systemic risk and a strategic lever in currency competition. That means teams creating tokenized money will face tougher liquidity, reserve and governance rules, and will increasingly contend with public digital currency alternatives. In short: stablecoins are scaling into real-world finance, but the same features that make them useful—convertibility, liquidity and promises of stability—also expose them to classic run risks. Regulators want to limit those risks while ensuring sovereign currencies aren’t displaced in the digital era.