OITracker Cboe delayed data

Contract OI history

Back to COF

Mar 19, 2027 EXPIRATION

COF $240.00 Call

COF270319C00240000

Latest saved OI339Oct 23, 2026
Last change+4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COF $240.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3391690 2026-10-02: 289 OI2026-10-05: 304 OI2026-10-06: 304 OI2026-10-07: 306 OI2026-10-08: 306 OI2026-10-09: 312 OI2026-10-13: 324 OI2026-10-14: 324 OI2026-10-15: 324 OI2026-10-16: 324 OI2026-10-21: 335 OI2026-10-23: 339 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, 2026Viewing339+4
Oct 21, 2026335+11
Oct 16, 20263240
Oct 15, 20263240
Oct 14, 20263240
Oct 13, 2026324+12
Oct 09, 2026312+6
Oct 08, 20263060
Oct 07, 2026306+2
Oct 06, 20263040
Oct 05, 2026304+15
Oct 02, 2026289No prior observation