A stablecoin is a cryptocurrency designed to hold a steady value, usually by tracking the price of a fiat currency such as the US dollar. Unlike Bitcoin or Ethereum, which can move sharply in price, stablecoins are built to act more like digital cash inside the crypto market.
How It Works
Most stablecoins try to maintain their peg by holding reserves. For example, a dollar-backed stablecoin may claim to hold cash, Treasury bills, or similar assets so that each token can be redeemed for one dollar. Other stablecoins use crypto collateral or algorithmic mechanisms, though those models can carry more risk.
Stablecoins move on blockchains, which means they can be transferred quickly between wallets, exchanges, and DeFi applications.
Why It Matters In Crypto
Stablecoins are one of the main liquidity rails in crypto. Traders use them to move in and out of volatile assets without returning to a bank account. Exchanges use them as quote currencies. DeFi protocols use them for lending, borrowing, and payments.
A simple example: if a trader sells Bitcoin into USDT or USDC during a market drop, they can keep dollar exposure on-chain while waiting for another trade.
