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Contract OI history

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Sep 17, 2027 EXPIRATION

COF $230.00 Call

COF270917C00230000

Latest saved OI696Oct 23, 2026
Last change+45vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COF $230.00 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. 6963480 2026-10-02: 569 OI2026-10-05: 579 OI2026-10-06: 579 OI2026-10-07: 597 OI2026-10-08: 597 OI2026-10-09: 607 OI2026-10-13: 612 OI2026-10-14: 612 OI2026-10-15: 615 OI2026-10-16: 615 OI2026-10-21: 651 OI2026-10-23: 696 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, 2026Viewing696+45
Oct 21, 2026651+36
Oct 16, 20266150
Oct 15, 2026615+3
Oct 14, 20266120
Oct 13, 2026612+5
Oct 09, 2026607+10
Oct 08, 20265970
Oct 07, 2026597+18
Oct 06, 20265790
Oct 05, 2026579+10
Oct 02, 2026569No prior observation