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Contract OI history

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Oct 23, 2026 EXPIRATION

COF $220.00 Put

COF261023P00220000

Latest saved OI1Oct 23, 2026
Last change-161vs 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. 162810 2026-10-02: 13 OI2026-10-05: 13 OI2026-10-06: 13 OI2026-10-07: 13 OI2026-10-08: 13 OI2026-10-09: 13 OI2026-10-13: 71 OI2026-10-14: 71 OI2026-10-15: 71 OI2026-10-16: 94 OI2026-10-21: 162 OI2026-10-23: 1 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, 2026Viewing1-161
Oct 21, 2026162+68
Oct 16, 202694+23
Oct 15, 2026710
Oct 14, 2026710
Oct 13, 202671+58
Oct 09, 2026130
Oct 08, 2026130
Oct 07, 2026130
Oct 06, 2026130
Oct 05, 2026130
Oct 02, 202613No prior observation