What is collateral?
Collateral is an asset pledged to support a loan. Its value helps determine how much can be borrowed and when a position becomes unsafe.
Version 1
GlossaryCollateral is an asset pledged to support a loan. If the loan becomes insufficiently backed, some or all of that asset can be taken through the lending system’s rules.
For a hypothetical example, a person deposits assets worth $1,000 to support a $500 loan. If those assets lose value, the borrower still owes the debt. These amounts are not actual loan terms.
A little more technical
Crypto lending systems compare debt with a risk-adjusted value of collateral. Each accepted asset can have different limits. Interest and changing prices affect the position even without a new loan.
Common misunderstanding
Depositing collateral is not paying off the debt. It backs the loan while the repayment obligation remains.
No prerequisite reading is needed. Source: Aave’s collateral and health-factor explanation.