What is a stablecoin and how does it work
A stablecoin is a crypto asset designed to stay close to the value of a currency such as the US dollar or another reference asset. Stability is not guaranteed. Its reserves, issuer, smart contract and network all matter.
In brief
A stablecoin is a crypto asset designed to stay close to the value of a currency such as the US dollar or another reference asset. A dollar-based stablecoin commonly targets a value of about one dollar per token.
The word "stable" does not mean its price can never change. Stability is a design goal, not a certainty.
How stablecoins work
Three broad approaches are common:
- Fiat-backed: An issuer holds cash or short-term financial assets to support tokens in circulation.
- Crypto-backed: Other crypto assets are deposited into smart contracts as collateral.
- Mechanism-based: Supply changes and incentives try to move the price toward its target.
Each model creates different trust assumptions. One requires attention to the issuer and reserves; another requires attention to collateral ratios and behavior.
What are stablecoins used for
People use stablecoins to move value between exchanges, make payments, interact with DeFi and use a dollar-like unit while crypto markets move.
The same stablecoin name can exist on multiple networks. Before sending one, check the network and contract address as well as the token name.
What happens if it falls below one dollar
A move away from the target value is called a depeg. Market imbalance, reserve concerns, limited liquidity or a broken mechanism can cause it.
The price may return to its target, but it does not have to. A past recovery does not prove that a future depeg will also recover.
Risks and checks
Biggest uncertainty A stablecoin can move away from its target price, and redemption may not be available on the same terms to every user.
Check what backs the token, whether regular reports are available, who issues it, how redemption works, which network it uses and what smart contract risks exist.
A stablecoin is not cash. It is a separate asset running on a under its own issuance, reserve or collateral rules. This guide did not examine the reserves or solvency of a specific stablecoin.
Sources
This article rests on the sources below. Whether each has a permanent copy is stated next to it.
- #1
Source for the stablecoin definition and the general description of fiat-backed, crypto-backed and mechanism-based models.
ethereum.org· our own copy· no screenshot· cited 1 times in the text
Evidence chain: 1 sources
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Sources (1)
- #1
Source for the stablecoin definition and the general description of fiat-backed, crypto-backed and mechanism-based models.
ethereum.org/stablecoins/our own copyopen in a new tab - no screenshot captured
- captured on Sep 9, 2026, 7:09 PM
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