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GlossaryOOvercollateralization

Overcollateralization

A requirement for borrowers to deposit collateral worth more than the loan amount to mitigate risk.

What is Overcollateralization?

Overcollateralization ensures that the value of collateral exceeds the borrowed amount, typically by 150–200%, to protect lenders against price volatility in digital assets. For example, borrowing $1,000 USDC on Compound might require $1,600 in ETH at a 62.5% LTV ratio. If collateral value falls, automated liquidations repay the loan, maintaining protocol solvency. Introduced by MakerDAO in 2017, this mechanism is foundational to DeFi lending.

In 2025, average overcollateralization ratios across protocols like Aave and MakerDAO hover around 160%, balancing accessibility and security. Advanced protocols now support dynamic collateral requirements, adjusting based on asset volatility. For instance, during 2024’s market dip, overcollateralized loans prevented systemic losses, with $2 billion in collateral liquidated efficiently across major platforms.

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