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Contract OI history

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Mar 19, 2027 EXPIRATION

COF $180.00 Put

COF270319P00180000

Latest saved OI719Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COF $180.00 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. 7233610 2026-10-02: 700 OI2026-10-05: 701 OI2026-10-06: 701 OI2026-10-07: 701 OI2026-10-08: 701 OI2026-10-09: 701 OI2026-10-13: 702 OI2026-10-14: 702 OI2026-10-15: 722 OI2026-10-16: 723 OI2026-10-21: 718 OI2026-10-23: 719 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, 2026Viewing719+1
Oct 21, 2026718-5
Oct 16, 2026723+1
Oct 15, 2026722+20
Oct 14, 20267020
Oct 13, 2026702+1
Oct 09, 20267010
Oct 08, 20267010
Oct 07, 20267010
Oct 06, 20267010
Oct 05, 2026701+1
Oct 02, 2026700No prior observation