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Contract OI history

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Dec 18, 2026 EXPIRATION

COF $220.00 Call

COF261218C00220000

Latest saved OI1,245Oct 23, 2026
Last change+164vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COF $220.00 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. 1,2456220 2026-10-02: 800 OI2026-10-05: 798 OI2026-10-06: 820 OI2026-10-07: 820 OI2026-10-08: 820 OI2026-10-09: 845 OI2026-10-13: 878 OI2026-10-14: 878 OI2026-10-15: 884 OI2026-10-16: 907 OI2026-10-21: 1,081 OI2026-10-23: 1,245 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, 2026Viewing1,245+164
Oct 21, 20261,081+174
Oct 16, 2026907+23
Oct 15, 2026884+6
Oct 14, 20268780
Oct 13, 2026878+33
Oct 09, 2026845+25
Oct 08, 20268200
Oct 07, 20268200
Oct 06, 2026820+22
Oct 05, 2026798-2
Oct 02, 2026800No prior observation