What Is a Stablecoin?
A stablecoin is a type of cryptocurrency designed to maintain a stable value by being pegged to a reference asset — most commonly the US dollar, but also gold, other currencies, or algorithmic mechanisms.
Types of Stablecoins
- Fiat-backed: Each coin is backed 1:1 by real fiat currency held in reserve (e.g., USDC, USDT).
- Crypto-collateralized: Backed by other cryptocurrencies, usually over-collateralized to absorb volatility (e.g., DAI).
- Algorithmic: Uses supply-and-demand algorithms to maintain peg — highest risk, as seen in the collapse of TerraUSD (UST) in 2022.
- Commodity-backed: Pegged to physical commodities like gold (e.g., PAX Gold).
Why Stablecoins Matter
- Enable fast, low-cost global transfers without bank intermediaries
- Serve as a safe haven within crypto portfolios during volatility
- Power DeFi lending and liquidity protocols
Key Risks
Reserve transparency, regulatory crackdowns, and de-pegging events (as seen with algorithmic stablecoins) all represent material risks. Always verify that a stablecoin’s reserves are independently audited.