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Contract OI history

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Jan 21, 2028 EXPIRATION

COF $190.00 Put

COF280121P00190000

Latest saved OI300Oct 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 $190.00 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. 3001500 2026-10-02: 289 OI2026-10-05: 291 OI2026-10-06: 295 OI2026-10-07: 296 OI2026-10-08: 296 OI2026-10-09: 298 OI2026-10-13: 299 OI2026-10-14: 299 OI2026-10-15: 299 OI2026-10-16: 299 OI2026-10-21: 300 OI2026-10-23: 300 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, 2026Viewing3000
Oct 21, 2026300+1
Oct 16, 20262990
Oct 15, 20262990
Oct 14, 20262990
Oct 13, 2026299+1
Oct 09, 2026298+2
Oct 08, 20262960
Oct 07, 2026296+1
Oct 06, 2026295+4
Oct 05, 2026291+2
Oct 02, 2026289No prior observation