Definition of open interest in English:

open interest

Pronunciation /ˈōpən ˈint(ə)rəst/ /ˈoʊpən ˈɪnt(ə)rəst/

noun

Finance
  • 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.’
    • ‘By ‘most’ I mean the largest possible proportion of open interest.’
    • ‘The gold open interest rose again, this time up 1549 contracts to 298, 149.’