Stablecoins & Protocol Risk

What can make a stablecoin lose its peg?

Published Updated 8 min read

Why can a stablecoin fall below its target value?

A stablecoin can depeg when users doubt or cannot access redemption, reserves lose value or liquidity, an issuer or bank fails, a token or network is attacked, or market liquidity disappears. The peg is a claim with mechanisms and counterparties—not a guarantee. Check who can redeem, for what, when and under which law.

By: Sherpa Desk

Review status: Source-checked by the CryptoSherpa Editorial Desk; no named accountant, lawyer or reserve auditor has reviewed a specific stablecoin.

Scope: Global risk framework; redemption rights and regulatory treatment depend on issuer, token and holder location.

A token separated from a fixed peg beside a partly closed redemption door.
Peg is a target
Market price and redemption value can diverge
Holder versus customer
Owning a token may not give direct redemption access to the issuer
Reserve quality
Liquidity, credit, custody and maturity can matter during heavy redemptions
Wrapped version
A bridged token adds bridge, network and contract risks to the underlying stablecoin
  1. 1Identify the issuer, exact token contract, network and stated peg mechanism.
  2. 2Read who has a legal right to redeem, the minimum, timing, fees and eligible countries.
  3. 3Review current reserve disclosures for assets, custody, liabilities, dates and assurance scope.
  4. 4Check exchange and on-chain liquidity without assuming past peg stability will continue.

Map the promise behind the token

“Stable” describes a target, not a guaranteed outcome. Identify whether the token is backed by reserve assets, over-collateralised on-chain, governed by an algorithm, or a wrapped version held through a bridge. Each model has different dependencies.

For an issuer-backed token, read the issuer’s legal terms. Direct redemption may be limited to verified customers, minimum amounts or particular countries. If ordinary holders can only sell on a market, the market price can fall below the issuer’s redemption value during stress.

Read reserve evidence narrowly

Look for the reporting date, reserve composition, custodians, liabilities and the independent practitioner’s scope. Cash and short-dated liquid assets behave differently from longer, riskier or encumbered assets when many users redeem. A report is evidence for a defined time and scope, not insurance.

Operational problems also matter: banks can be unavailable, blockchains can pause or congest, contracts can fail, and an issuer may freeze addresses under its terms. Liquidity on one exchange or network does not prove liquidity everywhere.

A wrapped token adds another layer

A stablecoin moved through a bridge may be represented by a different contract backed by locked tokens or a bridge custodian. Ethereum’s bridge documentation highlights smart-contract, technology and counterparty risks. Check how to return to the original network and who controls that process.

Do not treat a stablecoin balance as equivalent to an insured bank deposit. Keep the exposure, duration and custody route within the loss you can bear, and recheck the evidence because reserve, banking and legal arrangements can change.

Sources

Primary and authoritative sources checked on the dates shown:

  1. Stablecoin report fact sheet (2021): redemption and run risks — US Department of the Treasury; accessed .
  2. Regulatory responses to risks from stablecoins — Bank for International Settlements Financial Stability Institute; accessed .
  3. Prudential treatment of cryptoasset exposures — stablecoin reserve and redemption criteria — Basel Committee on Banking Supervision; accessed .
  4. Ethereum bridges — Ethereum.org; accessed .

Questions

Does an attestation prove a stablecoin is fully safe?

No. Read its date, frequency, asset scope, liabilities, legal entity and assurance standard. A point-in-time report cannot guarantee future reserves, redemption access, operational resilience or market liquidity.

Is an algorithmic stablecoin the same as a reserve-backed stablecoin?

No. Their stabilisation and failure mechanisms differ. Understand the exact collateral, incentives, governance and redemption process rather than relying on the shared word “stable”.

Does a stablecoin held on another network carry the same risk?

Not necessarily. A bridged or wrapped representation can add a custodian, bridge or smart-contract dependency. Verify the contract and how the representation can be redeemed for the original asset.