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What Is ‘Open Interest’ in the Context of Futures and Options Markets?

The total number of outstanding, unclosed derivatives contracts that indicates market liquidity and participation level.
Greeks.Live05.11.25

What Is ‘Open Interest’ in the Context of Futures and Options Markets?

Open Interest is the total number of outstanding or unclosed contracts (futures or options) that have been traded but not yet offset by an opposite transaction, exercised, or expired. It is a key metric for gauging market liquidity and the overall level of participation.

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