Stablecoin depeg
A stablecoin depeg is a loss of its target price, usually $1, when it trades clearly and persistently below or above it. Causes include doubts about reserves, panic or a broken mechanism.
How it works
A stablecoin holds $1 as long as people believe it can be redeemed for a dollar or equal collateral. Small wobbles like $0.998–1.002 are normal. A depeg is when the price drops to, say, $0.95 or lower and does not snap back right away.
Causes vary. For fiat-backed stablecoins it is bank or reserve trouble: in March 2023 USDC fell to about $0.88 for a few days when part of its reserves was stuck in a failed bank, then recovered. For algorithmic ones it is a broken mechanism: in May 2022 UST lost its peg and collapsed almost to zero.
A depeg hurts everything built on top: liquidity pools, loans that use the stablecoin as collateral, and wrapped versions. Liquidations and panic deepen the fall. Stablecoins are built differently and do not carry the same risk.
You have 10,000 of a stablecoin in a pool paired with another stablecoin. The first one depegs to $0.90. Arbitrage traders dump it into the pool and take the other one, so your share ends up almost entirely in the cheaper token: the position is worth around $9,000–9,200 instead of $10,000.
A common mistake is treating all stablecoins as equally safe and keeping everything in one. Learn what backs the stablecoin, who issues it and where reserves are held. Spread large amounts across different types, ignore fractions of a cent, but act if the backing is genuinely in doubt.
Questions and answers
What is a depeg in simple terms?
It is when a stablecoin stops being worth $1 and trades clearly lower. Usually it comes from reserve problems or panic.
Can USDT or USDC lose its peg?
Yes, temporary depegs have happened, such as USDC in March 2023. The risk depends on reserves and issuer and is never zero.
What should I do if a stablecoin depegs?
Do not act on emotion: find out the cause and whether the issuer still redeems at $1. If the backing is at risk, reduce exposure, knowing that selling at the bottom locks in a loss.
Related terms
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Updated: 2026-10-19