OITracker Cboe delayed data

Contract OI history

Back to B

Jan 19, 2029 EXPIRATION

B $23.00 Put

B290119P00023000

Latest saved OI75Oct 23, 2026
Last change+22vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $23.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 75370 2026-10-02: 23 OI2026-10-05: 31 OI2026-10-06: 31 OI2026-10-07: 31 OI2026-10-08: 31 OI2026-10-09: 31 OI2026-10-13: 31 OI2026-10-14: 31 OI2026-10-15: 52 OI2026-10-16: 52 OI2026-10-21: 53 OI2026-10-23: 75 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, 2026Viewing75+22
Oct 21, 202653+1
Oct 16, 2026520
Oct 15, 202652+21
Oct 14, 2026310
Oct 13, 2026310
Oct 09, 2026310
Oct 08, 2026310
Oct 07, 2026310
Oct 06, 2026310
Oct 05, 202631+8
Oct 02, 202623No prior observation