{
  "$schema": "https://degreesofsatoshi.com/encyclopedia/schemas/article-v1.json",
  "schemaVersion": "1.0.0",
  "id": "lending-collateral-interest",
  "canonical": "https://degreesofsatoshi.com/encyclopedia/lending-collateral-interest/",
  "collection": "defi",
  "title": "Does supplied collateral earn interest? Read the market accounting",
  "description": "Find out whether collateral earns lending interest, retains its own token yield, or does neither in a particular market.",
  "aliases": [
    "does DeFi collateral earn interest",
    "does supplied collateral earn lending interest"
  ],
  "dates": {
    "published": "2026-10-02",
    "modified": "2026-10-02",
    "verified": "2026-10-02T19:18:00.092Z",
    "dataAsOf": "2026-10-02"
  },
  "authorship": {
    "publisher": "Degrees of Satoshi editorial project",
    "process": "AI-assisted research and drafting with a separate automated source-verification pass; no external expert or named human review is implied."
  },
  "quickAnswer": {
    "text": "Collateral does not earn interest merely because it backs a loan. Aave supplies can accrue pool interest while eligible supplies also serve as collateral. Morpho Blue separates loan-asset lending from collateral deposits, and its collateral balance does not earn Morpho lending interest. A collateral token can still have its own independent yield mechanism.",
    "claimId": "lending-collateral-interest-quick-answer",
    "sourceIds": [
      "x425-defi-aave-liquidity",
      "x425-defi-morpho-collateral",
      "x425-defi-pendle"
    ]
  },
  "keyFacts": [
    {
      "label": "Aave supply",
      "value": "Supplied tokens accrue the reserve’s supply rate under Aave’s rules.",
      "sourceIds": [
        "x425-defi-aave-liquidity"
      ],
      "id": "aave-supply",
      "claimId": "lending-collateral-interest-fact-aave-supply"
    },
    {
      "label": "Morpho collateral",
      "value": "The cited Blue collateral accounting is asset-based and earns no lending yield.",
      "sourceIds": [
        "x425-defi-morpho-collateral"
      ],
      "id": "morpho-collateral",
      "claimId": "lending-collateral-interest-fact-morpho-collateral"
    },
    {
      "label": "Separate mechanism",
      "value": "Yield-bearing tokens can represent returns generated by another protocol.",
      "sourceIds": [
        "x425-defi-pendle"
      ],
      "id": "separate-mechanism",
      "claimId": "lending-collateral-interest-fact-separate-mechanism"
    }
  ],
  "prerequisites": [
    "defi-lending-pools"
  ],
  "sections": [
    {
      "id": "example",
      "heading": "Identify where the income would come from",
      "sourceIds": [
        "x425-defi-aave-liquidity",
        "x425-defi-morpho-collateral"
      ],
      "paragraphs": [
        "Imagine depositing token A into an Aave reserve that has a positive supply rate and enabling it as collateral. Its supply claim can accrue that rate. Depositing A solely as collateral in a Morpho Blue market is a different action; borrowers of the loan asset are not paying lending interest to that collateral balance.",
        "The same token symbol does not make the two positions economically identical."
      ]
    },
    {
      "id": "embedded",
      "heading": "A yield-bearing token adds another layer",
      "sourceIds": [
        "x425-defi-pendle",
        "x425-defi-morpho-collateral"
      ],
      "paragraphs": [
        "If the collateral token itself represents a growing claim on an external strategy, that underlying mechanism may continue according to its own rules. Separate its return from any lending interest the collateral market pays. A rebasing token, wrapper or reward program also needs compatibility with the market’s accounting."
      ]
    },
    {
      "id": "net",
      "heading": "Compare income and borrowing cost separately",
      "sourceIds": [
        "x425-defi-aave-liquidity",
        "x425-defi-morpho-risk"
      ],
      "paragraphs": [
        "Even where collateral earns something, the debt has its own cost and currency exposure. Record supplied balance, yield source, debt balance and rate independently. Expected income is not a reason to ignore liquidation, oracle or underlying-token risk."
      ]
    }
  ],
  "faq": [
    {
      "question": "Does switching an asset on as collateral create a new yield source?",
      "answer": "Not by itself. It changes borrowing eligibility; the source of any yield depends on the supply or token mechanism.",
      "sourceIds": [
        "x425-defi-aave-collateral",
        "x425-defi-aave-liquidity",
        "x425-defi-morpho-collateral"
      ]
    }
  ],
  "claims": [
    {
      "id": "lending-collateral-interest-quick-answer",
      "articleSlug": "lending-collateral-interest",
      "statement": "Collateral does not earn interest merely because it backs a loan. Aave supplies can accrue pool interest while eligible supplies also serve as collateral. Morpho Blue separates loan-asset lending from collateral deposits, and its collateral balance does not earn Morpho lending interest. A collateral token can still have its own independent yield mechanism.",
      "sourceIds": [
        "source-1c9a4ee4b0c4a761",
        "source-7c21a705af654627",
        "source-30fcaa0ccad4f0db"
      ],
      "sourceLocators": [
        {
          "sourceId": "source-1c9a4ee4b0c4a761",
          "locator": "Supply; Borrow; Repay"
        },
        {
          "sourceId": "source-7c21a705af654627",
          "locator": "Assets and shares; collateral accounting"
        },
        {
          "sourceId": "source-30fcaa0ccad4f0db",
          "locator": "Yield tokenization; PT; YT; maturity"
        }
      ],
      "scope": {
        "collection": "defi",
        "dataAsOf": "2026-10-02",
        "blockHeight": null
      },
      "qualification": "",
      "evidenceStatus": "documented",
      "verification": {
        "status": "verified",
        "method": "independent automated source review",
        "checkedAt": "2026-10-02T19:18:00.092Z",
        "reviewer": "Independent automated verification — Codex root, separate from the DeFi drafting agent",
        "notes": [
          "Checked Morpho Blue collateral balance has no lending yield and Aave supply can earn while collateral; external yield-bearing mechanism distinguished from lending interest."
        ]
      }
    },
    {
      "id": "lending-collateral-interest-fact-aave-supply",
      "articleSlug": "lending-collateral-interest",
      "statement": "Aave supply: Supplied tokens accrue the reserve’s supply rate under Aave’s rules.",
      "sourceIds": [
        "source-1c9a4ee4b0c4a761"
      ],
      "sourceLocators": [
        {
          "sourceId": "source-1c9a4ee4b0c4a761",
          "locator": "Supply; Borrow; Repay"
        }
      ],
      "scope": {
        "collection": "defi",
        "dataAsOf": "2026-10-02",
        "blockHeight": null
      },
      "qualification": "",
      "evidenceStatus": "documented",
      "verification": {
        "status": "verified",
        "method": "independent automated source review",
        "checkedAt": "2026-10-02T19:18:00.092Z",
        "reviewer": "Independent automated verification — Codex root, separate from the DeFi drafting agent",
        "notes": [
          "Checked Morpho Blue collateral balance has no lending yield and Aave supply can earn while collateral; external yield-bearing mechanism distinguished from lending interest."
        ]
      }
    },
    {
      "id": "lending-collateral-interest-fact-morpho-collateral",
      "articleSlug": "lending-collateral-interest",
      "statement": "Morpho collateral: The cited Blue collateral accounting is asset-based and earns no lending yield.",
      "sourceIds": [
        "source-7c21a705af654627"
      ],
      "sourceLocators": [
        {
          "sourceId": "source-7c21a705af654627",
          "locator": "Assets and shares; collateral accounting"
        }
      ],
      "scope": {
        "collection": "defi",
        "dataAsOf": "2026-10-02",
        "blockHeight": null
      },
      "qualification": "",
      "evidenceStatus": "documented",
      "verification": {
        "status": "verified",
        "method": "independent automated source review",
        "checkedAt": "2026-10-02T19:18:00.092Z",
        "reviewer": "Independent automated verification — Codex root, separate from the DeFi drafting agent",
        "notes": [
          "Checked Morpho Blue collateral balance has no lending yield and Aave supply can earn while collateral; external yield-bearing mechanism distinguished from lending interest."
        ]
      }
    },
    {
      "id": "lending-collateral-interest-fact-separate-mechanism",
      "articleSlug": "lending-collateral-interest",
      "statement": "Separate mechanism: Yield-bearing tokens can represent returns generated by another protocol.",
      "sourceIds": [
        "source-30fcaa0ccad4f0db"
      ],
      "sourceLocators": [
        {
          "sourceId": "source-30fcaa0ccad4f0db",
          "locator": "Yield tokenization; PT; YT; maturity"
        }
      ],
      "scope": {
        "collection": "defi",
        "dataAsOf": "2026-10-02",
        "blockHeight": null
      },
      "qualification": "",
      "evidenceStatus": "documented",
      "verification": {
        "status": "verified",
        "method": "independent automated source review",
        "checkedAt": "2026-10-02T19:18:00.092Z",
        "reviewer": "Independent automated verification — Codex root, separate from the DeFi drafting agent",
        "notes": [
          "Checked Morpho Blue collateral balance has no lending yield and Aave supply can earn while collateral; external yield-bearing mechanism distinguished from lending interest."
        ]
      }
    }
  ],
  "sources": [
    {
      "id": "x425-defi-aave-liquidity",
      "label": "LiquidityPool",
      "publisher": "Aave",
      "url": "https://aave.com/docs/aave-v3/concepts/liquidity-pool",
      "locator": "Supply; Borrow; Repay",
      "note": "Pooled supply/collateral interest and repayment asset.",
      "version": "Documentation retrieved for the 2026-10-02 editorial scope; content hash recorded",
      "checkedAt": "2026-10-02T18:53:21.761Z",
      "contentSha256": "cdf88867bba9c9025d998e8b31713ea0de41e0d4a8c7caaa1593f065fd242077",
      "recordId": "source-1c9a4ee4b0c4a761"
    },
    {
      "id": "x425-defi-morpho-collateral",
      "label": "Market Mechanics",
      "publisher": "Morpho",
      "url": "https://docs.morpho.org/developers/borrow/concepts/market-mechanics/",
      "locator": "Assets and shares; collateral accounting",
      "note": "Collateral receives no lending interest from Morpho Blue itself.",
      "version": "Documentation retrieved 2026-10-02; hash recorded",
      "checkedAt": "2026-10-02T19:07:09.356Z",
      "contentSha256": "183bed267e4a189c04ba93615948b57898ab3cb6d551e5fd965abc24d35ee12f",
      "recordId": "source-7c21a705af654627"
    },
    {
      "id": "x425-defi-pendle",
      "label": "Pendle Introduction",
      "publisher": "Pendle",
      "url": "https://docs.pendle.finance/pendle-v2/Introduction",
      "locator": "Yield tokenization; PT; YT; maturity",
      "note": "Principal/yield splitting and maturity accounting.",
      "version": "Documentation retrieved for the 2026-10-02 editorial scope; content hash recorded",
      "checkedAt": "2026-10-02T18:53:22.586Z",
      "contentSha256": "d74dbb4febcad3f5a037cf6494fb971e3c23b908efe60c315ec3806568c2313d",
      "recordId": "source-30fcaa0ccad4f0db"
    },
    {
      "id": "x425-defi-morpho-risk",
      "label": "Risk and Security Documentation",
      "publisher": "Morpho",
      "url": "https://docs.morpho.org/learn/resources/risks/",
      "locator": "Smart contract; Oracle; Counterparty; Bad debt; Liquidity risks",
      "note": "Distinguishes types of protocol risk.",
      "version": "Documentation retrieved for the 2026-10-02 editorial scope; content hash recorded",
      "checkedAt": "2026-10-02T18:53:22.330Z",
      "contentSha256": "2f336c66ab4873723d5314f6ba5ec56e3e61b5d10213d62ce96b467e2e46d414",
      "recordId": "source-2c6118fd53915127"
    },
    {
      "id": "x425-defi-aave-collateral",
      "label": "Toggle Collateral Status",
      "publisher": "Aave",
      "url": "https://aave.com/help/supplying/toggle-collateral-status",
      "locator": "Enable; Disable; health factor",
      "note": "Changing collateral status independently of supply balance.",
      "version": "Documentation retrieved for the 2026-10-02 editorial scope; content hash recorded",
      "checkedAt": "2026-10-02T18:53:21.565Z",
      "contentSha256": "e34879a19b7b44b55651f157424f33a750b2b0fa29ece983917cbb6ab83b9ce2",
      "recordId": "source-a679a4dc85247e88"
    }
  ],
  "related": {
    "articles": [
      "aave-atokens",
      "collateral-looping",
      "wrapped-staked-ether",
      "vault-management-performance-fees"
    ],
    "dossiers": [],
    "wallets": []
  },
  "revisionHistory": [
    {
      "date": "2026-10-02",
      "kind": "published",
      "summary": "First publication after primary-source research and separate automated verification."
    }
  ],
  "citation": "Degrees of Satoshi editorial project. “Does supplied collateral earn interest? Read the market accounting.” Published 2026-10-02; updated 2026-10-02. https://degreesofsatoshi.com/encyclopedia/lending-collateral-interest/"
}