A price display of $1.00 tells only part of a stablecoin’s story. The more important questions are who will redeem the token, what backs that promise and what happens when many holders try to leave at once.
A stablecoin is designed to track a reference value, usually the US dollar. It may serve as trading collateral, a settlement asset or a bridge between bank money and onchain applications. That usefulness rests on an issuer, reserves, collateral rules, market incentives or some combination of them.
How a stablecoin tries to hold its peg
A stablecoin needs a mechanism that encourages issuance and redemption around its reference price. With an issuer-backed dollar token, an eligible customer may deliver dollars to mint tokens and return tokens to redeem dollars. If the market price rises above one dollar, authorised participants have an incentive to create and sell more tokens. If it falls below one dollar, they may buy tokens and redeem them, assuming redemption remains open and economical.
The quality of that mechanism depends on more than the headline value of the reserve. The reserve must be liquid when many holders want to leave, held by reliable custodians and legally available to satisfy token holders. The Financial Stability Board therefore treats clear legal claims, effective stabilisation and timely redemption as core safeguards.
Three broad designs—and different risks
Fiat-referenced tokens depend on an identifiable issuer and offchain reserve. The reserve may include cash, bank deposits or short-term securities. These tokens can offer a direct route to redemption, but users depend on the issuer, banks, custodians and applicable law.
Crypto-collateralised stablecoins use assets locked in smart contracts. Because the collateral itself can fall quickly, these systems normally require more collateral than the stablecoins issued. Price oracles, liquidation auctions, governance parameters and congestion become part of the risk model.
Algorithmic or undercollateralised designs rely more heavily on incentives, supply changes or a related token. A mechanism may work in ordinary markets and break when confidence and liquidity disappear together. “Algorithmic” describes a method; it does not prove that the peg can survive a run.
What can cause a depeg?
A depeg can begin with doubts about reserve assets, a blocked banking route, an issuer losing access to funds, a smart-contract exploit, an oracle error or a sudden wave of redemptions. Thin liquidity on one exchange can also produce a temporary price deviation without proving that the entire arrangement is insolvent.
Users should distinguish the exchange price from redemption value. A token trading at $0.99 may recover if arbitrage and redemption work. A token quoted at $1 may still be difficult to redeem if access is limited to selected institutions, minimum sizes or jurisdictions.
Stablecoin risk can also travel through DeFi. A token used as collateral in many protocols may trigger liquidations when it loses its peg. Pools holding two supposedly equivalent assets can become concentrated in the weaker one. The analysis of staking and yield farming traces displayed returns back to their economic source.
Reserves, attestations and audits are not the same thing
A reserve report should state what assets are held, where they are held and which obligations they support. An attestation usually tests management’s assertion at a particular date. It is not automatically a full financial-statement audit, and neither document guarantees future liquidity.
Look for the reporting period, accounting basis, auditor or assurance provider, maturity of securities, bank and custodian concentration, related-party exposure and whether reserve assets are separated from the issuer’s operating assets. The Basel Committee’s criteria illustrate why credit quality, short maturities, liquidity and bankruptcy remoteness matter under stress.
What regulation changes—and what it does not
Rules vary by jurisdiction. In the European Union, MiCA distinguishes e-money tokens referencing one official currency from broader asset-referenced tokens. The European Banking Authority sets out authorisation and reserve-related requirements for relevant issuers.
Regulation can improve disclosure, redemption rights, governance and supervision. It cannot make a blockchain immune to outages, prevent every fraud or guarantee that a token is available legally in every country. A user still needs to identify the issuing entity and the rights attached to the specific token held.
A practical stablecoin checklist
- Identify the issuer, legal entity and jurisdiction.
- Read the redemption terms, including eligibility, timing, fees and minimum amounts.
- Check the reserve composition and the scope and date of assurance reports.
- Confirm the exact token contract and blockchain; similarly named copies can be worthless.
- Assess issuer, custodian, bank, bridge and smart-contract dependencies.
- Do not confuse a lending or liquidity-pool yield with the stability of the token itself.
- Consider how you would exit if an exchange, bridge or network became unavailable.
The appropriate stablecoin depends on the job: short-term settlement, collateral, cross-border transfer or temporary exit from a volatile asset. For international payments, the full comparison with bank-transfer routes shows why acquisition, network, conversion and cash-out costs belong in the decision.
Editorial note: this guide was fully reviewed and rewritten on September 3, 2026. It provides general information, not financial or legal advice.
