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Contract OI history

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Oct 30, 2026 EXPIRATION

COF $185.00 Put

COF261030P00185000

Latest saved OI259Oct 23, 2026
Last change-216vs 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. 4752370 2026-10-02: 27 OI2026-10-05: 27 OI2026-10-06: 30 OI2026-10-07: 31 OI2026-10-08: 31 OI2026-10-09: 135 OI2026-10-13: 145 OI2026-10-14: 145 OI2026-10-15: 146 OI2026-10-16: 148 OI2026-10-21: 475 OI2026-10-23: 259 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, 2026Viewing259-216
Oct 21, 2026475+327
Oct 16, 2026148+2
Oct 15, 2026146+1
Oct 14, 20261450
Oct 13, 2026145+10
Oct 09, 2026135+104
Oct 08, 2026310
Oct 07, 202631+1
Oct 06, 202630+3
Oct 05, 2026270
Oct 02, 202627No prior observation