$USDC USDC is a **fiat-backed stablecoin** pegged 1:1 to the U.S. dollar, issued by **Circle** in partnership with Coinbase. It is designed for fast, low-cost global transactions and is fully backed by cash and short-term U.S. Treasury bonds held in regulated financial institutions .

- **Launch**: September 2018 on Ethereum, now available on **19+ blockchains** (e.g., Solana, Polygon, Base) .

- **Market Cap**: $60.9 billion, with $15 billion in 24-hour trading volume .