A mechanism to fix the value of a cryptocurrency relative to another asset, such as a fiat currency.
A Peg is a mechanism that fixes the value of a cryptocurrency relative to another asset, such as a fiat currency (e.g., USD), a commodity, or another crypto asset. Pegs ensure price stability and are commonly used by stablecoins.
Types of Pegs
Fiat-backed peg: Tokens backed 1:1 by reserves (USDC, USDT)
Crypto-collateralized peg: Over-collateralized with other digital assets (DAI)
Algorithmic peg: Maintained through supply adjustments and incentives
Commodity peg: Linked to assets like gold
Why Pegs Are Important
Provide stability in volatile markets
Enable predictable pricing for payments and DeFi operations
Support on-chain savings, lending, and trading
Offer a bridge between crypto and traditional finance
Peg Challenges
Depegging risk during market stress
Reserve transparency issues
Smart contract vulnerabilities
Reliance on oracles and collateral models
Stable pegs require robust mechanisms and strong market confidence.
Summary
A peg anchors a cryptocurrency’s value to another asset, enabling stability and predictable pricing — especially in stablecoins and synthetic assets.
