ECB’s Cipollone Warns Stablecoins Could Drain Bank Deposits

Stablecoins are typically backed by dollar deposits and short-term government debt, making them similar to money market funds (MMFs). A wave of redemptions could trigger fire sales and liquidity stress that spill into traditional markets. The European Union’s Markets in Crypto-Assets Regulation (MiCA) rules for stablecoins have applied since June 30, 2024, drawing close scrutiny of their implications for financial stability and euro sovereignty.

European Central Bank (ECB) Executive Board member Isabel Schnabel recently warned that stablecoins could bring existing MMF vulnerabilities, including runs and maturity mismatches, into tokenized finance. She said the dominance of dollar-denominated stablecoins could also reinforce the dollar’s position. Schnabel called for a digital euro and tokenized central-bank settlement instruments to modernize public money. Her remarks did not include an estimate of potential losses or a formal launch date.

Stablecoins maintain their value using fiat currency and short-term assets. If funds move from retail deposits to nonbank issuers, banks would become more reliant on costlier and more volatile wholesale funding. European Central Bank Working Paper No. 3199, published in 2026, said euro-area companies depend heavily on bank credit. Deposit substitution would therefore constrain lending and disrupt the transmission of policy rates to households and businesses.

On May 22, 2026, ECB President Christine Lagarde opposed a Bruegel proposal to ease euro stablecoin rules and give issuers access to ECB funding during an informal meeting of EU finance ministers in Nicosia, Cyprus. Stablecoins already have a market capitalization exceeding $300 billion. Under current MiCAR rules, at least 30% of reserve assets must be deposited with banks, rising to 60% for significant issuers. The ECB warned that easing the rules could raise banks’ funding costs and reduce lending.