$USDC In May 2025, USDC (USD Coin) from Circle stands out as the fastest-growing stablecoin globally. With over $20 trillion transacted in 2024 and a 78% increase in circulating supply, its market value exceeds $45 billion. Present on 16 blockchains and available in over 180 countries, USDC is widely used in payments, remittances, and integrations with fintechs such as Coinbase, Stripe, and Nubank. Circle has also obtained a license in the EU, aligning with the MiCA regulation.