$USDC USD Coin (USDC) is a regulated, dollar-backed stablecoin developed by Circle and Coinbase in 2018. Each USDC is pegged 1:1 to the U.S. dollar and backed by fully reserved assets, including cash and short-term U.S. Treasuries. It is widely used for trading, payments, remittances, and decentralized finance (DeFi). USDC runs on multiple blockchains including Ethereum, Solana, and Avalanche, offering fast, low-cost transfers. As of 2025, USDC is the second-largest stablecoin globally, after Tether (USDT), with a market share around 28%. It is favored for its transparency, with monthly reserve attestations and compliance with U.S. regulations. USDC also powers new financial tools and is increasingly used by institutions and fintechs. Its growing adoption reflects broader trust in stablecoins as a bridge between traditional finance and crypto, especially as regulatory clarity improves in the U.S. and globally.