A borrower can keep the same amount of collateral in Compound and still move closer to liquidation overnight. The collateral price may fall, the debt grows with interest, and the market’s risk parameters can change. Understanding those moving parts matters more than the headline yield.
Compound is a DeFi lending protocol built around smart contracts rather than individual loan negotiations. It originated on Ethereum and now has deployments across multiple EVM networks. COMP is its governance token; buying COMP and supplying assets to a lending market are different activities.
Start with the market, not the token
Compound III, also called Comet, gives each market one borrowable base asset, such as USDC. Supplying that base asset with a positive account balance earns interest. Supplying an accepted collateral asset, such as WETH in a compatible market, enables borrowing the base asset. Those collateral deposits do not earn native Comet lending interest. The Compound III documentation explains this separation.
The distinction prevents a common mistake: assuming every asset deposited into Compound receives a supply yield. A yield-bearing collateral token may have its own economics, but that is separate from interest paid by Comet. Each deployment also has its own accepted assets, supply caps, liquidity and risk settings.
Older guides often describe Compound v2, where cTokens represent supplied assets and their exchange rates reflect accrued interest. That model should not be applied indiscriminately to III. Check the version, network and exact market before interpreting a balance or quoted rate. See the v2 documentation for the legacy design.
Why supply and borrowing rates change
Utilization measures how much of the supplied base asset is borrowed: total borrowing ÷ total supply. When demand absorbs more available funds, rates generally rise. Each curve has a “kink”: beyond that utilization level, the slope becomes steeper. Supply and borrowing rates follow separate governance-set models, so one cannot be inferred from the other using a universal fixed spread.
Compound III accounts for interest on a per-second basis using block timestamps. APR annualizes the current rate; APY also reflects a compounding assumption. Neither promises the return for the coming year. Token incentives, where offered, are an additional component with their own distribution rules and price risk. These mechanics are detailed in the interest-rate documentation.
For a simple illustration, $10,000 earning an unchanged 4% annual rate for 30 days produces approximately $32.88 before compounding, costs or incentives: $10,000 × 4% × 30 ÷ 365. A rate jump tomorrow changes the result. Borrowers likewise need room for higher interest costs rather than treating today’s quote as fixed funding.
The borrowing ceiling and liquidation line are different
A borrow collateral factor limits how much debt an asset can support when borrowing. A separate, normally higher liquidation collateral factor determines when the account becomes liquidatable. Between the two, an account may lose the ability to borrow more or withdraw collateral without yet being eligible for liquidation. These factors are distinct from the liquidation penalty. Definitions are available in Compound’s market-parameter documentation.
Consider an illustrative position with 10 WETH worth $2,000 each, a 75% borrow collateral factor, an 80% liquidation collateral factor and $10,000 of debt. The factors are invented for teaching and are not current Compound settings. Assume the borrowed stablecoin stays at $1 and ignore interest and fees.
| Measure | Calculation | Result |
|---|---|---|
| Collateral value | 10 × $2,000 | $20,000 |
| Initial borrowing ceiling | $20,000 × 75% | $15,000 |
| Initial liquidation threshold | $20,000 × 80% | $16,000 |
| Collateral price at the boundary | $10,000 ÷ (10 × 80%) | $1,250 per WETH |
| Threshold after WETH falls to $1,200 | 10 × $1,200 × 80% | $9,600: below the debt |
At $1,200 per WETH, the $10,000 debt exceeds the $9,600 threshold and the position is eligible for liquidation. Accruing debt moves that boundary even if the collateral quantity stays unchanged. With several collateral assets, the protocol combines their separately weighted values; a single unweighted loan-to-value ratio can conceal the difference.
What happens when liquidation becomes possible?
In Compound III, a bot or another participant can call absorb on an eligible account. Protocol reserves take on its debt, while the protocol receives the collateral. After the penalty and debt are accounted for, any remaining positive base-asset balance belongs to the borrower; a surplus is not guaranteed. Selling seized collateral to buyers is a separate step governed by reserve conditions. See Compound’s liquidation documentation.
Do not assume a warning, a grace period or a chance to choose the execution price. Repaying debt or adding accepted collateral can improve the position before liquidation, but a pending transaction offers no protection until confirmed. Congestion, gas costs and a fast price move can make a last-minute rescue fail.
COMP gives governance rights, not a fixed income claim
COMP holders can delegate voting power and participate in governance. Decisions can affect market parameters and protocol upgrades. Simply holding COMP does not automatically entitle a wallet to the interest paid by borrowers, guarantee dividends or make it a shareholder in a company. Normal borrowing does not require buying COMP; network fees are paid in the network’s native asset.
Governance also creates operational risk. Changes to collateral factors, price feeds or rate curves can alter a position’s economics. Authorized pause controls can interrupt selected functions. Review the governance framework, rather than assuming that “decentralized” means settings can never change.
Before supplying or borrowing
Check the official deployment, chain, base asset and token contract. Understand what the approval permits and retain gas for repayment. For borrowers, simulate a collateral decline and a borrowing-rate increase together. For suppliers, inspect available withdrawal liquidity; high utilization may mean that an immediate full withdrawal is unavailable.
Price feeds and stablecoin behavior also matter. Liquidation uses the configured oracle, which can differ from a price visible elsewhere. KTX’s blockchain oracle guide explains that dependency, while its stablecoin depeg guide explains why a dollar token may not remain worth one dollar. Contract vulnerabilities, oracle failures, collateral impairment and bad debt can affect suppliers as well as borrowers. Protocol reserves are not deposit insurance.
Readers comparing on-chain lending with exchange services can explore KTX, keeping the custody arrangements and product terms separate. Holding assets on KTX does not automatically place them into Compound or earn Compound interest.
Frequently asked questions
Can I borrow without first owning COMP?
Yes. Borrowing depends on accepted collateral, market rules and available liquidity. COMP is used for governance, not as a general admission ticket to a loan.
Is there a fixed repayment date?
A standard Comet position does not have a conventional fixed loan maturity. Interest continues to accrue, and collateral requirements remain enforceable throughout the borrowing period.
Can I earn supply interest while borrowing the same base asset in one account?
Comet records a net base-asset balance. A positive balance supplies; a negative balance borrows. Supplying the base asset to an indebted account first reduces that debt rather than creating a separate interest-earning deposit alongside it.
Does disconnecting my wallet close the loan?
No. Disconnecting a website does not change the on-chain position or erase debt. Revoking a token approval also does not repay a loan or withdraw collateral already supplied.
Is a small initial test enough to prove safety?
It can confirm the transaction route and expose obvious mistakes, but cannot establish future contract safety, withdrawal liquidity or protection from liquidation. Monitoring remains necessary after a successful test.
Risk disclosure
This article is educational and is not investment, legal or tax advice. Examples are hypothetical, and rates, parameters and supported assets can change. DeFi involves smart-contract, oracle, governance, liquidity, stablecoin and wallet-security risks; liquidation can cause substantial loss, and deposited capital may be lost. Audits and past operation do not guarantee safety. Assess affordability, local restrictions and tax obligations before participating.
KTX Points Season 1 is now live
Trading, holding assets, maintaining assets on the platform, inviting friends and participating in the ecosystem can earn points. Points will be an important basis for future KTX token-related incentives. Trading communities, KOLs, lead traders and project teams are welcome to collaborate.
Visit the KTX Points Season 1 page for details. This is a separate KTX campaign; Compound activity does not automatically qualify. Eligibility and rewards follow the campaign rules. Points do not guarantee a token allocation, value or investment return.