OITracker Cboe delayed data

Contract OI history

Back to COF

Mar 19, 2027 EXPIRATION

COF $175.00 Put

COF270319P00175000

Latest saved OI466Oct 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 $175.00 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. 4662330 2026-10-02: 444 OI2026-10-05: 453 OI2026-10-06: 458 OI2026-10-07: 458 OI2026-10-08: 458 OI2026-10-09: 459 OI2026-10-13: 460 OI2026-10-14: 460 OI2026-10-15: 461 OI2026-10-16: 461 OI2026-10-21: 466 OI2026-10-23: 466 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, 2026Viewing4660
Oct 21, 2026466+5
Oct 16, 20264610
Oct 15, 2026461+1
Oct 14, 20264600
Oct 13, 2026460+1
Oct 09, 2026459+1
Oct 08, 20264580
Oct 07, 20264580
Oct 06, 2026458+5
Oct 05, 2026453+9
Oct 02, 2026444No prior observation