Europe’s stablecoin market is being redrawn by MiCA. Circle aligned USDC and EURC with the new regulatory framework ahead of time, making it the only issuer among the world’s ten largest stablecoins that fully meets MiCA requirements. Tether took the opposite route. It did not apply for the electronic money issuance license required under the rules, and the result is that roughly $185 billion worth of USDT is now unavailable on licensed trading venues in Europe, forcing regulated platforms to rethink liquidity arrangements.
Circle entered the MiCA era with compliant USDC and EURC
According to the source material, Circle moved early to bring its dollar-backed USDC and euro-backed EURC in line with MiCA. The company, headquartered in the United States, was already a major stablecoin issuer, with USDC ranking among the largest by market value. That preparation now matters more. As Europe raises the compliance threshold, Circle is in position to keep operating inside the region’s licensed framework while rivals face new limits.
The company’s momentum was also strengthened on the institutional side. On the eve of MiCA’s rollout, BNY Mellon announced support for USDC, allowing institutional clients to store, transfer, issue, and burn the token through its network. For one of the world’s largest custodians to back those functions at that moment gave Circle extra weight, not just in regulation but in institutional credibility as well.
Tether rejects the reserve model and shifts focus outside the EU
Tether chose not to seek the license required by MiCA. The report says the company objected to the rule that 60% of stablecoin reserves must be held in European banks, arguing that such a structure would add risk. CEO Paolo Ardoino publicly defended that position and said changing the reserve model to fit European standards would create new risks rather than reduce them.
Instead of restructuring for the EU, Tether is concentrating on markets outside the bloc. That decision has immediate effects in Europe. USDT, long central to crypto trading liquidity, is no longer available on regulated platforms under the new framework, and exchanges operating with licenses must adapt their trading, settlement, and transfer setups around that gap. The change is sharp. It also reaches far beyond one issuer’s market share.
MiCA is narrowing the field across the wider crypto sector
The material makes clear that MiCA is affecting more than the stablecoin segment. Out of nearly 1,200 crypto firms that had previously been registered at the national level, only about 210 companies have secured full-scope CASP authorization, a success rate of around 17%. Under MiCA, the CASP license covers regulated crypto asset services including custody, trading, and transfers across the EU.
Those numbers show how quickly the European market is moving from fragmented national registration systems to a more unified and stricter licensing regime. Stablecoins are simply where the shift is most visible right now. Based on the information available, Circle’s long compliance push is turning into a clear commercial opening in Europe, while Tether has stepped away from that market for the time being. There is no clear sign at present that it plans to seek an EU license later.