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  "id": "open-interest-vs-volume",
  "canonical": "https://degreesofsatoshi.com/encyclopedia/open-interest-vs-volume/",
  "collection": "defi",
  "title": "Open interest versus volume: outstanding contracts and completed trades",
  "description": "Distinguish outstanding derivative contracts from trading turnover and avoid reading either measure as a directional prediction.",
  "aliases": [
    "open interest vs trading volume",
    "outstanding futures contracts versus turnover"
  ],
  "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": "Open interest counts derivative contracts that remain outstanding. Volume counts contracts traded during a specified period. The same exposure can change hands repeatedly and generate substantial volume without increasing open interest; neither measure alone identifies whether future prices will rise or fall.",
    "claimId": "open-interest-vs-volume-quick-answer",
    "sourceIds": [
      "x425-defi-cme-open-interest"
    ]
  },
  "keyFacts": [
    {
      "label": "Stock measure",
      "value": "Open interest describes outstanding contracts at a point in time.",
      "sourceIds": [
        "x425-defi-cme-open-interest"
      ],
      "id": "stock-measure",
      "claimId": "open-interest-vs-volume-fact-stock-measure"
    },
    {
      "label": "Flow measure",
      "value": "Volume counts trading during a period.",
      "sourceIds": [
        "x425-defi-cme-open-interest"
      ],
      "id": "flow-measure",
      "claimId": "open-interest-vs-volume-fact-flow-measure"
    },
    {
      "label": "Different questions",
      "value": "Turnover and remaining exposure need not move together.",
      "sourceIds": [
        "x425-defi-cme-open-interest"
      ],
      "id": "different-questions",
      "claimId": "open-interest-vs-volume-fact-different-questions"
    }
  ],
  "prerequisites": [
    "perpetual-futures"
  ],
  "sections": [
    {
      "id": "example",
      "heading": "Count a matched contract once",
      "sourceIds": [
        "x425-defi-cme-open-interest"
      ],
      "paragraphs": [
        "In a simplified market, a new buyer and a new seller open one matched contract: volume increases by one and open interest increases by one. There is a long and a short, but this is one outstanding contract, not two.",
        "If an existing long transfers its position to a new buyer while the original short remains, trading volume increases but the outstanding count need not change. When both counterparties close corresponding exposure, open interest decreases."
      ]
    },
    {
      "id": "units",
      "heading": "Read the unit and timestamp",
      "sourceIds": [
        "x425-defi-cme-open-interest"
      ],
      "paragraphs": [
        "A dashboard may report contracts, underlying units or a currency valuation. Price changes can alter a currency-valued display even if the contract count is unchanged. Compare like units and the same observation times; a 24-hour volume figure cannot be directly equated with end-of-day open interest."
      ]
    },
    {
      "id": "inference",
      "heading": "Activity is not a sufficient forecast",
      "sourceIds": [
        "x425-defi-cme-open-interest"
      ],
      "paragraphs": [
        "Every outstanding matched contract has opposing sides. Increasing open interest can accompany different strategies, including hedges and spread trades. CME discusses using it with other analysis; it does not make a standalone count a dependable buy-or-sell signal."
      ]
    }
  ],
  "faq": [
    {
      "question": "Can volume be high while open interest stays flat?",
      "answer": "Yes. Existing exposure can be repeatedly transferred, or openings and closings can offset over the period.",
      "sourceIds": [
        "x425-defi-cme-open-interest"
      ]
    }
  ],
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      "statement": "Open interest counts derivative contracts that remain outstanding. Volume counts contracts traded during a specified period. The same exposure can change hands repeatedly and generate substantial volume without increasing open interest; neither measure alone identifies whether future prices will rise or fall.",
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        "notes": [
          "Checked CME open-interest versus turnover and counting matched contracts once. Currency valuation and forecast caveats are explained deductions."
        ]
      }
    },
    {
      "id": "open-interest-vs-volume-fact-stock-measure",
      "articleSlug": "open-interest-vs-volume",
      "statement": "Stock measure: Open interest describes outstanding contracts at a point in time.",
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        "notes": [
          "Checked CME open-interest versus turnover and counting matched contracts once. Currency valuation and forecast caveats are explained deductions."
        ]
      }
    },
    {
      "id": "open-interest-vs-volume-fact-flow-measure",
      "articleSlug": "open-interest-vs-volume",
      "statement": "Flow measure: Volume counts trading during a period.",
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        "notes": [
          "Checked CME open-interest versus turnover and counting matched contracts once. Currency valuation and forecast caveats are explained deductions."
        ]
      }
    },
    {
      "id": "open-interest-vs-volume-fact-different-questions",
      "articleSlug": "open-interest-vs-volume",
      "statement": "Different questions: Turnover and remaining exposure need not move together.",
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        "notes": [
          "Checked CME open-interest versus turnover and counting matched contracts once. Currency valuation and forecast caveats are explained deductions."
        ]
      }
    }
  ],
  "sources": [
    {
      "id": "x425-defi-cme-open-interest",
      "label": "Open Interest",
      "publisher": "CME Group",
      "url": "https://www.cmegroup.com/education/lessons/open-interest",
      "locator": "Understanding Open Interest",
      "note": "Definition of outstanding contracts; not a forecast of price direction.",
      "version": "Documentation retrieved 2026-10-02; hash recorded",
      "checkedAt": "2026-10-02T18:57:10.036Z",
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  "related": {
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      "realized-unrealized-trading-pnl",
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    ],
    "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. “Open interest versus volume: outstanding contracts and completed trades.” Published 2026-10-02; updated 2026-10-02. https://degreesofsatoshi.com/encyclopedia/open-interest-vs-volume/"
}