OITracker Cboe delayed data

Contract OI history

Back to B

Dec 18, 2026 EXPIRATION

B $27.00 Call

B261218C00027000

Latest saved OI1,396Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $27.00 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. 1,4007000 2026-10-02: 1,400 OI2026-10-05: 1,396 OI2026-10-06: 1,396 OI2026-10-07: 1,396 OI2026-10-08: 1,396 OI2026-10-09: 1,396 OI2026-10-13: 1,396 OI2026-10-14: 1,396 OI2026-10-15: 1,396 OI2026-10-16: 1,396 OI2026-10-21: 1,396 OI2026-10-23: 1,396 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, 2026Viewing1,3960
Oct 21, 20261,3960
Oct 16, 20261,3960
Oct 15, 20261,3960
Oct 14, 20261,3960
Oct 13, 20261,3960
Oct 09, 20261,3960
Oct 08, 20261,3960
Oct 07, 20261,3960
Oct 06, 20261,3960
Oct 05, 20261,396-4
Oct 02, 20261,400No prior observation