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Contract OI history

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Dec 18, 2026 EXPIRATION

COF $220.00 Put

COF261218P00220000

Latest saved OI624Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COF $220.00 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. 6243120 2026-10-02: 614 OI2026-10-05: 614 OI2026-10-06: 614 OI2026-10-07: 614 OI2026-10-08: 614 OI2026-10-09: 614 OI2026-10-13: 614 OI2026-10-14: 614 OI2026-10-15: 624 OI2026-10-16: 624 OI2026-10-21: 624 OI2026-10-23: 624 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, 2026Viewing6240
Oct 21, 20266240
Oct 16, 20266240
Oct 15, 2026624+10
Oct 14, 20266140
Oct 13, 20266140
Oct 09, 20266140
Oct 08, 20266140
Oct 07, 20266140
Oct 06, 20266140
Oct 05, 20266140
Oct 02, 2026614No prior observation