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Historical Depeg Events

Notable stablecoin depeg events with detailed analysis. Filter by year, token, or severity.

Total Events
8
Tokens Affected
6
Years Covered
2020–2026
Ongoing
2
8 events

USDC — Resolv/Morpho vault contagion

USDC•eth
Severe
Date
Mar 22, 2026
Duration
Ongoing

Secondary contagion from the March 22 USR minting exploit. Resolv-curated Morpho vaults (USDC Frontier on Base v1 and Ethereum v2) were exposed: Morpho's hardcoded $1 USR oracle allowed traders to borrow USDC against depegged USR collateral before the oracle updated, creating bad debt risk. Gauntlet (Morpho risk curator) emergency deallocated USDC Frontier on Base (v1) with no bad debt, and submitted timelocked cap reductions on mainnet v2 (3-day and 5-day timelocks). Morpho UI warnings placed on affected vaults. USDC deposits re-opened on Base v1 and v2 once deallocated. USDC underlying is unaffected; risk was confined to vault wrappers. DeFiLlama shows APY spike to ~38% (from 30d mean ~8%) — a classic stress signal, not a yield opportunity. As of 2026-03-26, mainnet v2 remediation still in progress pending Resolv peg recovery update.

2026-03-22 → ongoingView Analysis →

USR — minting exploit collapse

USR•eth
Critical
Date
Mar 22, 2026
Duration
Ongoing

Minting exploit via compromised SERVICE_ROLE EOA: ~$80M USR minted from ~$200K collateral (400x) using unvalidated requestSwap/completeSwap functions. USR collapsed to $0.025 on Curve within 17 min; aggregated reference low $0.055. Attacker extracted ~$23.8M (converted to ETH). Secondary wave: Morpho vaults used hardcoded $1 oracle — traders borrowed USDC against depegged USR before oracle updated. Fluid, Euler, Venus, Lista DAO all paused. Webacy Depeg Monitor flagged Critical in ≤20 min across ETH, Base, ARB, BSC. Vault risk system had pre-flagged USR vaults with elevated depeg and asset risk scores pre-incident. As of 2026-03-25, USR remains ~69% below peg (~$0.31). Peg has not recovered. All four chains (ETH, Base, ARB, BSC) remain at Critical. Exit Recommended flags are active on all USR-backed vaults.

2026-03-22 → ongoingView Analysis →

sUSD — Synthetix depeg

sUSD•eth
Severe
Date
Jan 29, 2026
Duration
2d

sUSD depegged to ~$0.75; ~25% deviation from peg. Detected by Depeg Monitor.

2026-01-29 → 2026-01-30View Analysis →

USDT — Curve pool imbalance

USDT•eth
Moderate
Date
Jul 14, 2023
Duration
3d

Liquidity imbalance; mild price move.

2023-07-14 → 2023-07-16View Analysis →

USDC — SVB banking crisis

USDC•eth
Severe
Date
Mar 10, 2023
Duration
2d

Circle reserves exposure to SVB; deep depeg and recovery.

2023-03-10 → 2023-03-13View Analysis →

USDT — Celsius/3AC contagion

USDT•eth
Severe
Date
Jun 15, 2022
Duration
3d

Contagion fear; short-lived depeg.

2022-06-15 → 2022-06-18View Analysis →

UST — death spiral

UST•eth
Critical
Date
May 8, 2022
Duration
5d

Terra/UST collapse; persistent deviation to zero.

2022-05-08 → 2022-05-12View Analysis →

DAI — Black Thursday

DAI•eth
Notable
Date
Mar 12, 2020
Duration
2d

ETH crash; DAI positive depeg; liquidation issues.

2020-03-12 → 2020-03-13View Analysis →