OITracker Cboe delayed data

Contract OI history

Back to B

Jan 15, 2027 EXPIRATION

B $18.00 Call

B270115C00018000

Latest saved OI1,886Oct 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 $18.00 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. 1,8979480 2026-10-02: 1,897 OI2026-10-05: 1,897 OI2026-10-06: 1,897 OI2026-10-07: 1,896 OI2026-10-08: 1,894 OI2026-10-09: 1,894 OI2026-10-13: 1,894 OI2026-10-14: 1,887 OI2026-10-15: 1,887 OI2026-10-16: 1,887 OI2026-10-21: 1,886 OI2026-10-23: 1,886 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, 2026Viewing1,8860
Oct 21, 20261,886-1
Oct 16, 20261,8870
Oct 15, 20261,8870
Oct 14, 20261,887-7
Oct 13, 20261,8940
Oct 09, 20261,8940
Oct 08, 20261,894-2
Oct 07, 20261,896-1
Oct 06, 20261,8970
Oct 05, 20261,8970
Oct 02, 20261,897No prior observation