Collateralisation Meaning

Collateralisation is the process of using an asset as security to obtain a loan or unlock additional financial capacity. It describes the mechanism by which assets are pledged, locked, or escrowed to back borrowing, trading, or other financial activities.

In crypto markets, collateralisation is most commonly associated with DeFi lending protocols, where users deposit cryptocurrencies into smart contracts to borrow other assets. Because blockchains lack centralized credit checks, collateralisation replaces trust with code-ensuring loans are backed by verifiable, on-chain assets.

Collateralisation ratios define how much can be borrowed relative to the collateral’s value. For example, a 150% collateralisation ratio means a user must lock $150 worth of crypto to borrow $100.

If the collateral’s value declines and breaches a liquidation threshold, the protocol automatically liquidates part or all of the collateral to maintain solvency. Collateralisation is also central to margin trading, where traders pledge assets to borrow funds and increase position size.

While this amplifies potential gains, it also increases risk, as adverse price movements can trigger rapid liquidation. Overall, collateralisation enables capital efficiency while enforcing strict risk controls-making it a foundational concept in both traditional and crypto financial systems.