DeFi Lending Protocols: Collateral, Interest and Liquidation | NOONOO TRADING

DeFi lending lets users lend and borrow coins without a bank. This guide explains collateral, liquidation and risks beginners need to understand.

What is DeFi lending?

DeFi lending uses blockchain smart contracts to automate lending and borrowing without a bank intermediary. Depositors earn interest; borrowers post collateral to obtain other coins. Code applies rules instead of a person reviewing credit, enabling around-the-clock access in this model.

How do collateral and interest work?

The central principle is overcollateralization: post assets worth more than the amount borrowed. Borrowing ₩1 million might require ₩1.5 million in collateral. Collateral, rather than personal credit, secures the loan.

Example Deposit ₩2 million worth of ETH and borrow ₩1 million of a stablecoin. The borrower pays interest and suppliers receive it. Rates vary in real time with utilization, or how much available funding has been borrowed.

Supplier: Deposits coins and earns interest.
Borrower: Posts collateral, borrows coins and pays interest.
Rate: Variable with supply and demand rather than fixed.

What is liquidation?

If collateral prices fall below a required collateral-ratio threshold, the protocol forces the sale of some or all collateral to recover the loan. This is liquidation, the most important concept here.

Situation	Result
Collateral remains sufficiently valuable	Loan remains within requirements and can be repaid
Collateral falls below the threshold	Liquidation, collateral loss and a penalty or fee

Losing collateral plus fees can be costly. More volatile collateral raises liquidation risk. Also review risk management and position sizing.

Risks beginners should know

Smart-contract risk: Bugs or vulnerabilities can cause immediate asset loss. A familiar name is not a 100% safety guarantee.
Liquidation risk: Collateral can be liquidated during a crash while you are asleep.
Changing prices and rates: Collateral value and interest fluctuate, so returns are not guaranteed.
Fake protocols: High interest can be bait. Learn scam prevention first.

Recap

DeFi lending replaces bank intermediation with collateral-based borrowing and lending. Overcollateralization and liquidation are central. Contract defects, crashes and fraud are real risks. The source suggests first learning with small amounts you can afford to lose.

This article provides information, not investment recommendations. It guarantees neither price nor profit, and all investment decisions and responsibility remain your own.

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