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Contract OI history

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Oct 23, 2026 EXPIRATION

COF $217.50 Call

COF261023C00217500

Latest saved OI200Oct 23, 2026
Last change-14vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COF $217.50 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. 2141070 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 0 OI2026-10-07: 0 OI2026-10-08: 0 OI2026-10-09: 1 OI2026-10-13: 8 OI2026-10-14: 8 OI2026-10-15: 8 OI2026-10-16: 15 OI2026-10-21: 214 OI2026-10-23: 200 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, 2026Viewing200-14
Oct 21, 2026214+199
Oct 16, 202615+7
Oct 15, 202680
Oct 14, 202680
Oct 13, 20268+7
Oct 09, 20261+1
Oct 08, 202600
Oct 07, 202600
Oct 06, 202600
Oct 05, 202600
Oct 02, 20260No prior observation