OITracker Cboe delayed data

Contract OI history

Back to B

Jan 19, 2029 EXPIRATION

B $25.00 Call

B290119C00025000

Latest saved OI265Oct 23, 2026
Last change+23vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $25.00 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. 2651320 2026-10-02: 217 OI2026-10-05: 217 OI2026-10-06: 217 OI2026-10-07: 217 OI2026-10-08: 230 OI2026-10-09: 230 OI2026-10-13: 232 OI2026-10-14: 232 OI2026-10-15: 242 OI2026-10-16: 242 OI2026-10-21: 242 OI2026-10-23: 265 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

B contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing265+23
Oct 21, 20262420
Oct 16, 20262420
Oct 15, 2026242+10
Oct 14, 20262320
Oct 13, 2026232+2
Oct 09, 20262300
Oct 08, 2026230+13
Oct 07, 20262170
Oct 06, 20262170
Oct 05, 20262170
Oct 02, 2026217No prior observation