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Contract OI history

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Dec 18, 2026 EXPIRATION

COF $195.00 Put

COF261218P00195000

Latest saved OI462Oct 23, 2026
Last change+5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COF $195.00 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. 4622310 2026-10-02: 439 OI2026-10-05: 445 OI2026-10-06: 457 OI2026-10-07: 458 OI2026-10-08: 458 OI2026-10-09: 460 OI2026-10-13: 461 OI2026-10-14: 461 OI2026-10-15: 462 OI2026-10-16: 455 OI2026-10-21: 457 OI2026-10-23: 462 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, 2026Viewing462+5
Oct 21, 2026457+2
Oct 16, 2026455-7
Oct 15, 2026462+1
Oct 14, 20264610
Oct 13, 2026461+1
Oct 09, 2026460+2
Oct 08, 20264580
Oct 07, 2026458+1
Oct 06, 2026457+12
Oct 05, 2026445+6
Oct 02, 2026439No prior observation