The number of contracts or commitments outstanding in futures and options that are trading on an official exchange at any one time.
- Today, the CBOE reported total option open interest of 58.7 million contracts, an increase of 9.7 million from year-end.
- Look at the futures open interest on December silver and it is over 74,000 contracts.
- The gold open interest fell 901 contracts to 218, 161.
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Syllabification: o·pen in·ter·est
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