Stablecoin
A cryptocurrency designed to maintain a stable value, usually pegged 1:1 to a fiat currency like the U.S. dollar.
Stablecoins solve a key problem in crypto: volatility. While Bitcoin and Ethereum can swing 10% in a day, stablecoins stay at roughly $1. They do this through different mechanisms. Fiat-backed stablecoins like USDC hold real dollars (or dollar equivalents like Treasury bills) in reserve. Algorithmic stablecoins use smart contracts to manage supply. Crypto-collateralized stablecoins like DAI are backed by other cryptocurrencies.
Stablecoins have become the backbone of crypto finance. They're used for trading, lending, payments, and remittances. USDC is the second-largest stablecoin by market cap and is considered one of the most transparent because of its monthly reserve attestations.
Related Terms
USDC (USD Coin)
A regulated, fully-backed stablecoin pegged to the U.S. dollar. Each USDC is redeemable for $1.
Peg
The target price a stablecoin is designed to maintain, typically $1.00 for dollar-pegged stablecoins.
Fiat Currency
Government-issued money like the U.S. dollar, euro, or yen that isn't backed by a physical commodity.
Reserves
The pool of real-world assets (U.S. Treasuries, cash) held to back each USDC token at a 1:1 ratio.
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This definition is provided for educational purposes. USDC.org is an independent resource and is not affiliated with Circle Internet Financial.