Isabel Schnabel told a Seoul central bank conference on June 1, 2026 that the near-total dominance of dollar-pegged stablecoins could entrench US monetary power globally and weaken other central banks' grip on their own economies.
Speaking at the 2026 Bank of Korea International Conference on Central Banks and the Future of Money, Schnabel — a member of the ECB's Executive Board — drew a direct line between today's stablecoin market and the rise of US money market funds in the 1970s: both innovations disintermediate banks, both originate in the US regulatory environment, and both carry consequences that spread far beyond American borders.
The stakes are concrete. Global stablecoin market capitalisation now sits close to $300 billion, with Tether (USDT) and USD Coin (USDC) together accounting for roughly 90% of the total. Euro-denominated stablecoins remain marginal by comparison, with a combined market cap of approximately €500 million. That asymmetry is precisely what concerns Schnabel: if stablecoins become a mainstream payment rail, non-US households and firms may effectively transact in dollars by default, blunting the monetary policy transmission of every central bank that isn't the Federal Reserve.
The speech landed as the US GENIUS Act — legislation that would create a federal framework for dollar stablecoins — moves through Congress, and days after Japan moved to open its stablecoin market to foreign issuers. Schnabel did not name the legislation directly, but her framing was unmistakable: private monetary innovation that delivers efficiency gains can simultaneously "alter the international monetary order" in ways regulators are only beginning to reckon with.
Her parallel with money market funds is worth unpacking. MMFs emerged in the 1970s when US Regulation Q capped bank deposit rates; investors moved savings into funds that offered market yields instead. Banks shifted toward more volatile wholesale funding; financial intermediation moved toward capital markets. Stablecoins, Schnabel argued, repeat this dynamic on a global scale — with the added twist that they are not just US domestic instruments but potential substitutes for local currency in any country with a smartphone-connected population.
Her prescribed response: central banks must adapt "in an agile manner" across three dimensions — regulation, monetary policy implementation, and payment infrastructure — to preserve financial stability and anchor their own currencies in the digital age. Reuters filed on the remarks the same day from Frankfurt.
The speech is the most direct intervention yet from a senior ECB official framing dollar stablecoin dominance as a structural geopolitical concern rather than a consumer protection or anti-money-laundering problem. It positions the ECB as a counterweight to the US-led regulatory push — and implicitly makes the case for faster progress on a digital euro.