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Encyclopedia DeFi · Entry 361

Fixed and variable DeFi borrowing: which risk does a fixed rate remove?

AI-assisted research · separate automated verificationCorrections

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DeFi
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2 cited records
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In this article

At a glance

Key facts

Key facts for Fixed and variable DeFi borrowing: which risk does a fixed rate remove?
FactDetailSource
VariableAave supply and borrowing rates respond to pool conditions.[1]
Fixed termMorpho Midnight trades units representing loan-token obligations at maturity.[2]
Early exitThe documented fixed-term design depends on secondary liquidity for early trading exits.[2]
01

Translate a discount into a period cost

In a simplified fixed-term example, a borrower receives 970 loan tokens now and owes 1,000 at maturity. The 30-token difference is about 3.093% of the 970 received for that term, before fees. It is not 3% of the amount received, and it is not an annual rate unless the term and annualization method justify that label.

A variable loan’s total cost instead depends on the path of its rates and balances.

02

A due date changes the operational obligation

The Midnight documentation says unpaid debt can be liquidated after maturity, while collateral health can trigger liquidation earlier. A borrower therefore needs both an ongoing collateral plan and an understanding of repayment timing. Fixed does not mean indefinite.

03

Compare the full obligation

Use the same debt asset, term and fee assumptions. For an early exit, inspect actual offers rather than assuming the original rate is available in reverse. Lenders also face the collateral and loss-allocation rules of the selected fixed-term market.

Direct answers

Questions people ask

Does a fixed borrowing rate prevent liquidation?

No. It fixes a pricing feature of the obligation, not the future value of its collateral.

Inspect the evidence

The answer and key facts have stable claim links. These records retain the scope and qualification when reused.

Variable-rate borrowing accrues costs under a rate that can change with market conditions. Fixed-term borrowing sets an obligation tied to a maturity and execution price under its specific design. A fixed rate can make one cost more predictable, but collateral can still be liquidated and an early exit can depend on market liquidity.

Scope: DeFi · data through 2026-10-02. Verification: verified · 2026-10-02T19:18:00.092Z.

Link to this claim
Variable: Aave supply and borrowing rates respond to pool conditions.

Scope: DeFi · data through 2026-10-02. Verification: verified · 2026-10-02T19:18:00.092Z.

Link to this claim
Fixed term: Morpho Midnight trades units representing loan-token obligations at maturity.

Scope: DeFi · data through 2026-10-02. Verification: verified · 2026-10-02T19:18:00.092Z.

Link to this claim
Early exit: The documented fixed-term design depends on secondary liquidity for early trading exits.

Scope: DeFi · data through 2026-10-02. Verification: verified · 2026-10-02T19:18:00.092Z.

Link to this claim
Revision history
  1. — First publication after primary-source research and separate automated verification.

Source register

Sources and references

Retrieval dates and locators are recorded individually.
  1. LiquidityPoolAave

    Pooled supply/collateral interest and repayment asset.

    Locator: Supply; Borrow; Repay · Version / scope: Documentation retrieved for the 2026-10-02 editorial scope; content hash recorded · Retrieved: 2026-10-02T18:53:21.761ZOpen source
  2. Fixed Rate Markets (Midnight)Morpho

    Dated documentation example of fixed-term lending mechanics, not an availability guarantee.

    Locator: Fixed-rate model; maturity; risks · Version / scope: Documentation retrieved for the 2026-10-02 editorial scope; content hash recorded · Retrieved: 2026-10-02T18:53:22.486ZOpen source
How this article was made

Research and drafting use AI assistance. A separate automated review checks claims against primary sources; no external expert or named human review is implied. Publication, substantive editing, source retrieval and verification are recorded separately. This version was independently checked by an automated reviewer on 2 October 2026.

Editorial method and corrections

Degrees of Satoshi editorial project. “Fixed and variable DeFi borrowing: which risk does a fixed rate remove?.” Published 2026-10-02; updated 2026-10-02. https://degreesofsatoshi.com/encyclopedia/fixed-variable-defi-borrowing/