⚠️ Risks & Security

Liquidation Cascade

Chain reaction of liquidations where each one triggers further price drops and more liquidations

Definition

A liquidation cascade occurs when a series of liquidations trigger further price drops, which cause more positions to become undercollateralized, triggering yet more liquidations in a self-reinforcing downward spiral. This systemic risk is one of the most dangerous events in DeFi lending, often resulting in significant losses across the ecosystem.

Liquidation Cascade is a risk term used to understand Chain reaction of liquidations where each one triggers further price drops and more liquidations. In practice, it matters because it affects how users evaluate protocols, compare opportunities, and avoid hidden assumptions.

Example

During the May 2021 crash, ETH dropping 30% triggered massive Aave and Compound liquidations, which dumped more ETH on markets, pushing prices lower and liquidating even more positions.

How it works

In practice, the concept shows up like this: During the May 2021 crash, ETH dropping 30% triggered massive Aave and Compound liquidations, which dumped more ETH on markets, pushing prices lower and liquidating even more positions.

Why it matters

Liquidation Cascade matters because small misunderstandings in DeFi can turn into bad pricing, liquidation, governance, custody, or smart-contract risk. A good mental model helps you compare protocols without relying on marketing language.

What to check

Treat it as a risk term: identify the failure mode, who can be harmed, and what evidence would reduce that risk. The main checks are: Systemic protocol failure; Bad debt accumulation; Oracle failures under stress.

Risks to Consider

Systemic protocol failure
Bad debt accumulation
Oracle failures under stress

Common Questions

How can protocols prevent liquidation cascades?

Through conservative LTV ratios, gradual liquidation mechanisms (like Liquity's stability pool), circuit breakers, and diversified oracle sources. Users can protect themselves by maintaining high health factors.

What does Liquidation Cascade mean in DeFi?

Liquidation Cascade means Chain reaction of liquidations where each one triggers further price drops and more liquidations. The useful question is not only the definition, but how the mechanism changes risk, return, liquidity, or governance for the user.

How is Liquidation Cascade used in practice?

A practical example: During the May 2021 crash, ETH dropping 30% triggered massive Aave and Compound liquidations, which dumped more ETH on markets, pushing prices lower and liquidating even more positions.