What keeps a stablecoin pegged
Different designs hold the peg differently. Fiat-backed coins (USDC, USDT) rely on reserves and redemption; crypto-collateralised coins (DAI) rely on over-collateralisation and liquidations; algorithmic coins rely on market incentives alone. The strength of the peg is only as strong as the weakest link in that mechanism.
- Fiat-backed → depends on real reserves and the ability to redeem 1:1.
- Crypto-collateralised → depends on collateral value and timely liquidations.
- Algorithmic → depends on confidence; historically the most fragile.
What causes a depeg
Depegs happen when redemption is doubted or collateral is stressed: a reserve scare, a collateral crash, a frozen redemption path, or simply a bank run where everyone exits at once. The trigger varies, but the mechanism is the same — more sellers than the peg mechanism can absorb.
Spotting it on-chain first
Stablecoin pools are the earliest warning system. When a coin starts to wobble, its pools skew — the pool fills up with the suspect coin as holders swap out of it, and the price on-chain slips below $1 before headlines catch up. CoinVerum shows both sides of every pool, so an unbalanced stablecoin pool is visible immediately. See reading on-chain liquidity for how to read that skew.
- A stablecoin pool heavily weighted toward one coin → the market is dumping it.
- On-chain price drifting from $1 → the peg is under active stress.
- Liquidity fleeing the pool → confidence is gone; risk is rising.
Frequently asked questions
Does a depeg mean the stablecoin is dead?
Not always. Minor, temporary depegs during volatility often recover as arbitrage and redemption pull the price back. A deep, sustained depeg with fleeing liquidity is far more serious and can be terminal.
Which stablecoins are safest from depegs?
Generally, well-audited fiat-backed coins with transparent, redeemable reserves have held their pegs most reliably. Over-collateralised crypto-backed coins are next; purely algorithmic designs have the worst track record.
How can CoinVerum help me watch for a depeg?
CoinVerum reads on-chain pool balances and prices in real time, so a stablecoin trading off $1 or a pool skewing toward one coin shows up in the data before it reaches the news.