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Contract OI history

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Oct 23, 2026 EXPIRATION

COF $185.00 Put

COF261023P00185000

Latest saved OI424Oct 23, 2026
Last change-19vs 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. 4432210 2026-10-02: 166 OI2026-10-05: 166 OI2026-10-06: 167 OI2026-10-07: 170 OI2026-10-08: 170 OI2026-10-09: 174 OI2026-10-13: 209 OI2026-10-14: 209 OI2026-10-15: 191 OI2026-10-16: 180 OI2026-10-21: 443 OI2026-10-23: 424 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, 2026Viewing424-19
Oct 21, 2026443+263
Oct 16, 2026180-11
Oct 15, 2026191-18
Oct 14, 20262090
Oct 13, 2026209+35
Oct 09, 2026174+4
Oct 08, 20261700
Oct 07, 2026170+3
Oct 06, 2026167+1
Oct 05, 20261660
Oct 02, 2026166No prior observation