A stablecoin is a token designed to track a reference value, often a national currency such as the US dollar. The goal is a steadier unit for payments and transfers than a freely floating cryptocurrency.
Designs differ. Some issuers hold reserves outside the blockchain; other systems use cryptocurrency collateral and smart contracts. These arrangements create different dependencies on issuers, collateral, and software.
Understanding the peg
The intended price is called the peg. A stablecoin can trade away from that target, known as depegging. The Ethereum Foundation’s treasury policy explicitly considers depeg and liquidity risks when assessing on-chain activity. “Stable” describes a design objective, not a promise that money cannot be lost.
Stability is a design goal
A stablecoin targets a reference value, but market price, redemption access, collateral, and issuer risk can still cause it to trade away from that target.
Reserve-backed and crypto-backed designs
A reserve-backed stablecoin relies on an issuer and assets held outside the blockchain. A crypto-backed design instead uses on-chain collateral and rules implemented in software. Neither model should be understood from the ticker alone.
USDC is one example of a dollar-referenced stablecoin. An example is not a recommendation: readers still need to understand the issuer, reserve disclosures, and redemption conditions.
The mechanism behind the peg matters
Reserve-backed and crypto-backed designs rely on different assets, rules, and parties. The token name alone does not explain how value is supported or how holders can exit.
Sources
Educational information, not investment advice.