Why stablecoins exist
A stablecoin is a crypto asset that tries to hold a steady price. Most stablecoins target one US dollar.
This is useful because bitcoin and ether can move sharply. A stable unit makes payments, trading, and DeFi accounting easier.
However, stable does not mean risk-free. It means the token has a mechanism that tries to defend its peg.
Fiat-backed stablecoins
Some stablecoins are backed by cash, treasury bills, or similar assets held by a company.
In the ideal case, one token can be redeemed for one dollar. That promise helps the market price stay close to the peg.
Still, users must trust the issuer, the reserves, and the reporting process.
Crypto-backed stablecoins
Other stablecoins use crypto collateral. Because crypto prices move quickly, they often require extra collateral.
For example, a user may lock more value than they borrow. If the collateral falls too much, the system can liquidate it.
This design is more transparent, but it can still fail during sharp market moves.
Algorithmic designs
Some stablecoins try to hold a peg through incentives and supply changes. These are often called algorithmic stablecoins.
They can be fragile. If confidence breaks, the peg can break too.
The takeaway
A stablecoin stays stable only if its backing, incentives, and market trust keep working.
Therefore, always ask what supports the peg before trusting the name.
