A stablecoin is a cryptocurrency whose value is pegged to a stable asset, almost always a currency like the US dollar or the euro, at a 1:1 ratio. A token such as USDC is worth roughly 1 dollar today and should be worth roughly 1 dollar tomorrow. That stability is what sets it apart from Bitcoin or Ethereum, whose prices swing constantly.
The goal is specific: combine the speed and programmability of blockchain with the predictability of traditional money. Funds move and settle in seconds, around the clock, without the price uncertainty typical of other crypto assets.
How does a stablecoin work?
The mechanism depends on how the peg is maintained. Every token in circulation is backed by a reserve or a form of collateral that supports its value.
For the most widely used stablecoins, the issuer holds reserves in currency and short-term securities equal to the tokens issued. When a user deposits 100 dollars, the issuer mints 100 tokens; when they redeem them, the tokens are destroyed and the dollars returned. The transparency of these reserves is what determines market trust.
How big is the stablecoin market?
In 2026 the global stablecoin market exceeds 300 billion dollars in capitalization. Two tokens dominate: USDT (Tether) at roughly 185 billion dollars and USDC (Circle) at roughly 75 billion, together accounting for more than 90% of the market.
Growth is no longer driven by trading alone. Stablecoins like USDC are increasingly used for business-to-business payments, international remittances, and liquidity management, because they move digital dollars across continents in minutes at a fraction of the cost of traditional wire transfers.
What does Europe's MiCA regulation change?
In the European Union, stablecoins are governed by MiCA (Markets in Crypto-Assets), the regulatory framework that imposes reserve, transparency, and licensing requirements on issuers.
The impact is concrete: among the major stablecoins, USDC and EURC are MiCA-compliant, while USDT is not and has been removed from regulated European platforms. Binance, for example, delisted USDT spot pairs for users in the European Economic Area on 31 March 2025. For any business operating in Europe, compliance is not a technical detail but a condition for market access.
Why stablecoins matter for businesses
For a company, a compliant stablecoin is a programmable payment instrument that combines instant settlement, low costs, and traceability. A merchant can collect digital dollars without exposure to volatility; a treasurer can move liquidity between subsidiaries in real time; a payment ops team can automate reconciliation.
This is the shift that turns stablecoins from a speculative product into financial infrastructure.