The European Union’s Markets in Crypto‑Assets (MiCA) regulation has forced the largest stablecoin, Tether (USDT), to be removed from major exchanges in the EU, creating immediate liquidity pressure in the broader crypto market.

On 12 June 2025, Binance, Coinbase and Kraken announced that USDT would no longer be available to EU customers. The move followed Tether’s decision not to pursue MiCA approval, a requirement that stablecoin issuers must meet to operate in the EU.

USDT, which has a market capitalization of roughly $185 billion, is the dominant stablecoin by volume. The delisting has triggered a rapid outflow of liquidity. According to blockchain data, USDT has seen $3 billion in net outflows since its peak of about $190 billion earlier in the second quarter of 2025.

The outflow has coincided with a broader decline in the stablecoin market cap. Since early May, the total market cap of all stablecoins has fallen by more than $6 billion, even as risk‑on sentiment has risen following easing geopolitical tensions between the United States and Iran.

In the wake of the delisting, other stablecoins have experienced relative shifts. USDC, issued by Circle, has fallen 2.5 % month‑over‑month, while RLUSD, a regulated stablecoin issued by Reserve, has risen 6.5 %. These movements suggest that EU users are reallocating liquidity toward MiCA‑compliant alternatives.

The immediate impact on liquidity is significant. Stablecoins provide the depth that underpins spot trading, derivatives, and decentralized finance (DeFi) protocols. A reduction in USDT supply tightens market depth, which can increase price impact for large orders and slow momentum in the broader market.

Tether’s exclusion from the EU also raises questions about the resilience of decentralized systems that rely on centralized access points. While the underlying blockchain infrastructure of USDT remains decentralized, exchanges that comply with MiCA act as gatekeepers for EU users. The delisting demonstrates that regulatory compliance at the exchange level can override the decentralization of the token itself.

Industry observers note that the current liquidity tightening could set a bearish structure for risk assets in the third quarter. Even though risk‑on sentiment has improved, the stablecoin market cap has not rebounded, indicating that liquidity is not yet fully restored.

The broader implications extend beyond the EU. USDT is widely used across the globe as a bridge between fiat and crypto. A sustained reduction in its liquidity could influence trading volumes, DeFi borrowing rates, and the cost of hedging for institutional participants.

Regulators in other jurisdictions are watching the EU case closely. The MiCA framework, which became fully applicable in December 2024, aims to standardize stablecoin regulation across the EU. Other stablecoin issuers that have not yet obtained MiCA approval may face similar delisting pressures.

In summary, Tether’s decision to forego MiCA approval has led to the removal of USDT from major EU exchanges, a $3 billion outflow, and a tightening of stablecoin liquidity. The move underscores the continued influence of centralized exchanges on decentralized assets and highlights the importance of regulatory compliance for stablecoin issuers.

The next few months will determine whether the market can absorb the liquidity shock and whether other stablecoins will see increased adoption as a result of the EU’s regulatory stance.