The EU stablecoin reallocation and MiCA reserve requirements

Tether’s absence and Circle’s expansion

The reshuffle of the European stablecoin market reached a conclusion by July 1, 2026. Tether USDT left the order books of major EU-regulated exchanges like Coinbase and Kraken because the issuer did not apply for electronic money token authorization under MiCA. I judge this a strategic failure for Tether. While the company focused on the US market through its USAT-branded stablecoin under the GENIUS Act, it lost its European foothold. Tether’s decision to ignore the MiCA authorization process resulted in a massive loss of European liquidity, as major centralized venues like Kraken and Coinbase moved to geofence or delist USDT for all EEA-based customers. Circle capitalized on this vacancy. The issuer secured its EMI license in France in 2024 and added MiCA CASP authorization in April 2026. I note that USDT trading volumes on EU venues fell by 70% between Q4 2024 and Q2 2025, while USDC volumes on those same venues nearly doubled. Many EU-domiciled institutional desks rebalanced USDT holdings to USDC in late 2024 to avoid regulatory complexity. Even BNY Mellon announced USDC support just one day before the MiCA deadline.

The battle over reserve floors

Issuers and regulators disagree on the safest way to manage reserve assets. Circle asked the European Commission to revise MiCA rules to remove the mandatory 30% and 60% bank deposit floors. The company argues that these floors concentrate exposure inside the banking system and increase counterparty risk. I agree that such concentration could expose issuers to the same banking-sector failures seen during the Silicon Valley Bank collapse in March 2023. The European Systemic Bank (ESCB) also wants tougher rules. They propose replacing bank-deposit floors with liquidity buckets that require reserves to be held in assets maturing within one and five working days.

Circle also challenges the limits on sovereign exposure and single bank concentration. The current technical standards cap exposure to a single sovereign at 35% and exposure to a single bank at 1.5% of that bank’s total assets. These rules create operational complexity for large issuers who must maintain relationships with dozens of banks. Circle also seeks to preserve multi-issuance arrangements where an EU-authorized entity and a regulated overseas affiliate issue the same stablecoin. This helps bring globally circulating tokens like USDC within the MiCA framework. To prevent market abuse, ESMA uses a standardized, machine-readable JSON schema for all orders and trades to support the MiCA Digital Assets Surveillance System (MiDAS). This system takes order and transaction data from Crypto-Asset Service Providers to generate alerts on suspicious behavior.

Wholesale settlement and the bank-backed path

The rise of bank-backed tokens provides a different approach to MiCA compliance. Societe Generale – FORGE distributed its Euro-linked EURCV stablecoin through BCB Markets in June 2025. This cash account-backed stablecoin, which launched in April 2023, provides a way to reduce remittance costs in emerging markets. I observe that this expansion helps bank-led tokens compete with dollar-pegged assets. The European Central Bank is also testing distributed ledger technology (DLT) for wholesale settlement. The second wave of these trials includes 49 private firms and three central banks. This group includes the Hong Kong Monetary Authority and financial giants like Goldman Sachs, HSBC, and JP Morgan. The second wave covers domestic payments within the euro area, securities-related use cases, and foreign exchange payment-versus-payment transactions. The ESCB wants to ensure that tokenized central bank money remains the risk-free anchor for the financial system. They oppose allowing non-bank issuers to safeguard customer funds at central banks to avoid a synthetic CBDC. They also want to retain the ban on paying interest on e-money tokens. As of March 12, 2026, the regulatory landscape shows 19 authorized EMT issuers across 11 different countries issuing a total of 29 tokens. Will these DLT pilots for wholesale settlement eventually make euro-denominated stablecoins redundant?