What is a stablecoin?
A stablecoin is a digital token designed to hold a steady value — usually pegged to a currency like the US dollar. Here's how they work, the main types, the risks, and why businesses use them to move money.
Stablecoin, in one sentence
A stablecoin is a digital token designed to hold a steady value, almost always pegged one-to-one to a fiat currency such as the US dollar or the euro. It combines the speed and reach of moving value on a blockchain with the price stability of ordinary money — which is exactly what makes it useful for payments and settlement, rather than speculation.
Where Bitcoin’s price swings, a well-run stablecoin sits at roughly $1.00 (or €1.00) day in, day out. That stability is the whole point.
How a stablecoin holds its peg
The dominant model is fiat-backed (or “fully-reserved”): for every token issued, the issuer holds an equivalent amount of cash and short-dated government securities in reserve. Because holders can redeem tokens for the underlying currency at par, and traders arbitrage any gap, the market price stays anchored close to the peg.
There are other designs:
- Fiat-backed (e.g. USDC, USDT, EURC) — reserves of cash and equivalents. The largest and most widely used.
- Crypto-collateralised (e.g. DAI) — over-collateralised with other crypto assets.
- Algorithmic — attempt to hold the peg through supply-and-demand mechanics with little or no reserve. Several have failed catastrophically (the collapse of one wiped out tens of billions), and they are now treated with deep caution.
The main stablecoins
| Stablecoin | Issuer | Peg |
|---|---|---|
| USDT (Tether) | Tether | US dollar |
| USDC | Circle | US dollar |
| EURC | Circle | Euro |
USDT is the largest by market value and the most liquid, especially in trading; USDC is widely regarded as the most transparent and regulation-friendly of the dollar tokens. (For a head-to-head, see USDC vs USDT.)
What the risks really are
Stablecoins aren’t risk-free, and the risks are specific:
- Reserve quality — is each token genuinely backed by safe, liquid assets?
- Transparency — does the issuer publish regular, independent attestations of those reserves?
- De-peg events — during market stress a token can trade below its peg until confidence returns.
- Regulation — frameworks like the EU’s MiCA now set reserve and authorisation rules for euro- and dollar-referencing tokens, which is steadily separating compliant issuers from the rest.
The practical takeaway: the issuer and the disclosure matter more than the token’s name. Fully-reserved, regularly-attested, regulated stablecoins behave very differently from opaque ones.
Why businesses use stablecoins
For a business moving money internationally, a stablecoin is a settlement rail, not an investment. It lets you:
- Move dollar or euro value across borders in minutes, 24/7, without waiting on correspondent banks.
- Hold a stable, currency-denominated balance on-chain that you can convert to fiat when you choose.
- Bridge between currencies and counterparties — particularly crypto-native ones — without leaving the regulated perimeter.
How KwiikPay uses stablecoins
KwiikPay treats stablecoins as a settlement layer inside a regulated flow. We support USDC, USDT and EURC as legs in cross-border payments — you pay in or receive fiat into named multi-currency accounts, we convert at a wholesale FX rate, and stablecoins move the value where on-chain settlement is the fastest, cheapest route. You get the speed of stablecoin rails with the compliance, screening and fiat on/off-ramps of a regulated operator — KwiikPay is a registered VASP in Poland and, in Canada, a Payment Service Provider under the RPAA (Bank of Canada-supervised) and a FINTRAC MSB. The detail is on our stablecoin settlement and cross-border payments pages.
FAQs
How does a stablecoin stay at $1?
Most large stablecoins are fiat-backed: for every token in circulation, the issuer holds an equivalent reserve of cash and short-dated government securities. Holders can redeem tokens for the underlying currency, and that redeemability — plus arbitrage in the market — keeps the price anchored near its peg.
Are stablecoins safe?
The main risks are reserve quality (is each token genuinely backed?), transparency (does the issuer publish attestations?), and de-pegging during stress. Regulated, fully-reserved stablecoins that publish regular attestations are considered lower-risk than thinly-disclosed or algorithmic ones — several algorithmic stablecoins have collapsed. As always, the issuer matters.
What are stablecoins used for?
Beyond crypto trading, businesses increasingly use stablecoins as a settlement layer: moving value across borders in minutes, holding a dollar- or euro-denominated balance on-chain, and bridging between fiat currencies without waiting on correspondent banking.
What is the difference between a stablecoin and a cryptocurrency like Bitcoin?
Bitcoin's price floats freely and is volatile. A stablecoin is engineered to do the opposite — hold a steady value pegged to a currency — so it can be used as a unit of account and a means of payment rather than a speculative asset.