🪙 Tokens & Assets

Overcollateralization

Locking more collateral value than the amount borrowed as a safety buffer

Definition

Overcollateralization means locking up more value in collateral than the amount borrowed or minted. This buffer protects lenders and stablecoin holders against price drops in the collateral asset. For example, MakerDAO requires at least 150% collateral to mint DAI, meaning you need $150 of ETH to mint $100 of DAI. It's the foundation of most DeFi lending and decentralized stablecoins.

Overcollateralization is a token design term used to understand Locking more collateral value than the amount borrowed as a safety buffer. In practice, it matters because it affects how users evaluate protocols, compare opportunities, and avoid hidden assumptions.

Example

To borrow 1000 LUSD on Liquity, you must deposit at least $1100 worth of ETH (110% minimum collateralization ratio), though most users maintain 150%+ for safety.

How it works

In practice, the concept shows up like this: To borrow 1000 LUSD on Liquity, you must deposit at least $1100 worth of ETH (110% minimum collateralization ratio), though most users maintain 150%+ for safety.

Why it matters

Overcollateralization 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 token-design concept: inspect supply mechanics, holder incentives, redemption paths, and governance controls. The main checks are: Capital inefficiency; Liquidation risk if collateral drops; Opportunity cost of locked capital.

Risks to Consider

Capital inefficiency
Liquidation risk if collateral drops
Opportunity cost of locked capital

Common Questions

Why not use 1:1 collateralization?

Crypto assets are volatile. If collateral drops in value to less than the loan, the protocol accumulates bad debt. Overcollateralization provides a buffer to liquidate positions before they become underwater.

What does Overcollateralization mean in DeFi?

Overcollateralization means Locking more collateral value than the amount borrowed as a safety buffer. The useful question is not only the definition, but how the mechanism changes risk, return, liquidity, or governance for the user.

How is Overcollateralization used in practice?

A practical example: To borrow 1000 LUSD on Liquity, you must deposit at least $1100 worth of ETH (110% minimum collateralization ratio), though most users maintain 150%+ for safety.