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Contract OI history

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Nov 20, 2026 EXPIRATION

COF $185.00 Put

COF261120P00185000

Latest saved OI717Oct 23, 2026
Last change-196vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COF $185.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 9134560 2026-10-02: 740 OI2026-10-05: 761 OI2026-10-06: 765 OI2026-10-07: 770 OI2026-10-08: 770 OI2026-10-09: 768 OI2026-10-13: 774 OI2026-10-14: 774 OI2026-10-15: 782 OI2026-10-16: 818 OI2026-10-21: 913 OI2026-10-23: 717 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, 2026Viewing717-196
Oct 21, 2026913+95
Oct 16, 2026818+36
Oct 15, 2026782+8
Oct 14, 20267740
Oct 13, 2026774+6
Oct 09, 2026768-2
Oct 08, 20267700
Oct 07, 2026770+5
Oct 06, 2026765+4
Oct 05, 2026761+21
Oct 02, 2026740No prior observation