Stablecoins: what they are and the risks to know
Stablecoins aim to hold a steady value, usually one U.S. dollar. How they keep that peg — and what can break it — matters more than the name suggests.
Key takeaways
- Stablecoins are cryptocurrencies designed to track the value of an asset, most often the U.S. dollar.
- Fiat-backed coins hold reserves such as cash and Treasury bills; crypto-backed and algorithmic coins use other mechanisms.
- Risks include weak or opaque reserves, loss of the peg, platform failures and changing regulation.
Why stablecoins exist
Crypto prices can swing sharply. Stablecoins give traders and apps a dollar-like token that moves on blockchains quickly and around the clock, which makes them popular for trading, payments and transfers.
Types of stablecoins
How a stablecoin is backed largely determines how risky it is.
- Fiat-backed: each token is meant to be backed by cash and short-term government debt held in reserve.
- Crypto-collateralized: backed by other cryptocurrencies, usually over-collateralized to absorb price swings.
- Algorithmic: rely on code and market incentives rather than full reserves to hold the peg.
How a stablecoin can lose its peg
If holders doubt that reserves are sufficient or easy to access, many may try to redeem at once. Algorithmic designs are especially vulnerable: in 2022 the algorithmic stablecoin TerraUSD collapsed, wiping out billions of dollars in value within days.
What to check before using one
Stablecoins held on an exchange or app are generally not covered by bank deposit insurance.
- Who issues it and where it is regulated.
- What the reserves hold and whether they are independently attested or audited.
- How redemptions work and who can redeem directly.
- Whether the platform you use protects your holdings if it fails.
The regulatory picture
Governments have been introducing rules on reserves, disclosures and redemption rights, including the European Union’s Markets in Crypto-Assets (MiCA) framework. Rules continue to evolve, so check the latest requirements where you live.
The bottom line
A stablecoin is only as stable as what stands behind it. Favor transparent, well-regulated issuers and don’t treat stablecoin balances like an insured bank account.
Frequently asked questions
Do stablecoins pay interest?
The coins themselves usually don’t, but some platforms offer rewards for lending or holding them. Those rewards come with added platform and counterparty risk.
Can a stablecoin be worth more than $1?
Prices can drift slightly above or below the peg during heavy trading, but arbitrage usually pulls well-backed coins back toward $1.
This guide is for educational purposes only and isn’t personalized financial, investment, tax or legal advice. Rules, limits and rates change, so confirm current figures with official sources or a qualified professional.