{"id":243321,"date":"2026-05-22T11:08:38","date_gmt":"2026-05-22T15:08:38","guid":{"rendered":"https:\/\/ibkrcampus.com\/campus\/?post_type=trading-lessons&#038;p=243321"},"modified":"2026-07-13T14:49:40","modified_gmt":"2026-07-13T18:49:40","slug":"open-interest-2","status":"publish","type":"trading-lessons","link":"https:\/\/www.interactivebrokers.com\/campus\/trading-lessons\/open-interest-2\/","title":{"rendered":"CME &#8211; Open Interest"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Already an Interactive Brokers Client?<\/strong><\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/ndcdyn.interactivebrokers.com\/mkt\/?src=taCMEFutIntroRTP&#038;url=%2Fsso%2Fresolver%3Faction%3DAccountSettings%26config%3DTradingPermissions\" target=\"_blank\" rel=\"noreferrer noopener\">Request Trading Permissions<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>New to Interactive Brokers?<\/strong><\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/ndcdyn.interactivebrokers.com\/mkt\/?src=taCMEFutIntroAcc&#038;url=%2FUniversal%2FApplication\" target=\"_blank\" rel=\"noreferrer noopener\">Open Account<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n","protected":false},"excerpt":{"rendered":"<p>Open interest is the total number of futures contracts held by market participants at the end of the trading day. 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