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Contract OI history

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Dec 18, 2026 EXPIRATION

COF $240.00 Call

COF261218C00240000

Latest saved OI846Oct 23, 2026
Last change+143vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COF $240.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 8464230 2026-10-02: 628 OI2026-10-05: 626 OI2026-10-06: 627 OI2026-10-07: 627 OI2026-10-08: 627 OI2026-10-09: 622 OI2026-10-13: 617 OI2026-10-14: 617 OI2026-10-15: 617 OI2026-10-16: 616 OI2026-10-21: 703 OI2026-10-23: 846 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

COF contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing846+143
Oct 21, 2026703+87
Oct 16, 2026616-1
Oct 15, 20266170
Oct 14, 20266170
Oct 13, 2026617-5
Oct 09, 2026622-5
Oct 08, 20266270
Oct 07, 20266270
Oct 06, 2026627+1
Oct 05, 2026626-2
Oct 02, 2026628No prior observation