OITracker Cboe delayed data

Contract OI history

Back to B

Sep 17, 2027 EXPIRATION

B $45.00 Call

B270917C00045000

Latest saved OI130Oct 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
B $45.00 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. 130650 2026-10-02: 120 OI2026-10-05: 120 OI2026-10-06: 120 OI2026-10-07: 120 OI2026-10-08: 120 OI2026-10-09: 121 OI2026-10-13: 125 OI2026-10-14: 125 OI2026-10-15: 125 OI2026-10-16: 125 OI2026-10-21: 126 OI2026-10-23: 130 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, 2026Viewing130+4
Oct 21, 2026126+1
Oct 16, 20261250
Oct 15, 20261250
Oct 14, 20261250
Oct 13, 2026125+4
Oct 09, 2026121+1
Oct 08, 20261200
Oct 07, 20261200
Oct 06, 20261200
Oct 05, 20261200
Oct 02, 2026120No prior observation