OITracker Cboe delayed data

Contract OI history

Back to B

Jan 15, 2027 EXPIRATION

B $42.00 Call

B270115C00042000

Latest saved OI1,308Oct 23, 2026
Last change+42vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $42.00 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. 1,3086540 2026-10-02: 1,192 OI2026-10-05: 1,195 OI2026-10-06: 1,195 OI2026-10-07: 1,195 OI2026-10-08: 1,204 OI2026-10-09: 1,194 OI2026-10-13: 1,194 OI2026-10-14: 1,194 OI2026-10-15: 1,219 OI2026-10-16: 1,219 OI2026-10-21: 1,266 OI2026-10-23: 1,308 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, 2026Viewing1,308+42
Oct 21, 20261,266+47
Oct 16, 20261,2190
Oct 15, 20261,219+25
Oct 14, 20261,1940
Oct 13, 20261,1940
Oct 09, 20261,194-10
Oct 08, 20261,204+9
Oct 07, 20261,1950
Oct 06, 20261,1950
Oct 05, 20261,195+3
Oct 02, 20261,192No prior observation