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Contract OI history

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Sep 17, 2027 EXPIRATION

COF $170.00 Put

COF270917P00170000

Latest saved OI197Oct 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 $170.00 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. 199990 2026-10-02: 36 OI2026-10-05: 40 OI2026-10-06: 64 OI2026-10-07: 197 OI2026-10-08: 197 OI2026-10-09: 198 OI2026-10-13: 199 OI2026-10-14: 199 OI2026-10-15: 199 OI2026-10-16: 199 OI2026-10-21: 197 OI2026-10-23: 197 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, 2026Viewing1970
Oct 21, 2026197-2
Oct 16, 20261990
Oct 15, 20261990
Oct 14, 20261990
Oct 13, 2026199+1
Oct 09, 2026198+1
Oct 08, 20261970
Oct 07, 2026197+133
Oct 06, 202664+24
Oct 05, 202640+4
Oct 02, 202636No prior observation