Crypto Gloss

Depegging

Depegging is when a stablecoin or any asset designed to track a fixed price — typically $1 USD — deviates significantly from that target and fails to recover quickly. A stablecoin is “depegged” when market forces, liquidity crises, or protocol failures push its price meaningfully away from its target value. Minor deviations of a few cents are normal; sustained breaks of 5% or more typically signal a structural or confidence problem.

How It Works

Most stablecoins maintain their peg through one of three mechanisms:

1. Fiat Reserves (Centralised)

2. Over-Collateralised Crypto (Decentralised)

3. Algorithmic (Reflexive)

The Psychology of Depegging

Depegging events are partly technical and partly psychological. Once a stablecoin drops even slightly below its peg, rational holders may exit before others do — a classic bank run dynamic. The exit pressure amplifies the depeg, causing more exits, accelerating the decline. This self-reinforcing loop is why small depegs can become catastrophic ones rapidly, especially in algorithmic designs.

History

  • 2023, March — Circle’s USDC depegs to $0.87 after Silicon Valley Bank, which held a portion of USDC’s reserves, collapses. Peg is restored within 48 hours after US regulators guarantee SVB deposits.
  • 2022, May — TerraUSD (UST) permanently depegs from $1, falling to near zero within days, destroying over $40 billion in value.
  • 2022, June — MakerDAO’s DAI briefly trades at $0.95 during the Celsius/Three Arrows Capital contagion period.
  • 2023, March — USDC’s depeg triggers brief depegs in DAI (which held USDC as collateral) and FRAX — demonstrating how centralised stablecoin risk can transmit to decentralised systems.

Common Misconceptions

“If a stablecoin briefly drops to $0.98, it’s depegging.”

Temporary minor deviations during high-volume periods are normal and expected. Most stablecoin designs accommodate tight bands. “Depegging” typically refers to sustained deviations of 5% or more, or deviations that show no mean-reversion.

“Only algorithmic stablecoins depeg.”

Fiat-backed stablecoins can and do depeg — USDC’s 2023 SVB depeg demonstrates this. The causes and recovery mechanisms differ, but no stablecoin design is immune.

Criticisms

  1. Stablecoin designs frequently underestimate tail-risk — extreme depegging scenarios are dismissed as unlikely until they happen.
  2. Interconnected collateral (e.g., DAI holding USDC) means depegging events in one stablecoin can propagate to others.
  3. Regulatory responses to depegging events have been inconsistent — governments backstopped SVB deposits but let Terra/Luna fail entirely.

Social Media Sentiment

Depegging events generate intense, real-time community activity on r/CryptoCurrency and Crypto Twitter. The SVB/USDC depeg in 2023 sparked widespread debate about whether even regulated, reserve-backed stablecoins are “truly safe.” Algorithmic depegs (UST) remain the most cited cautionary tale. Community consensus is that over-collateralization and regulatory oversight are the only reliable stabilisers.

Last updated: 2026-04

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