OITracker Cboe delayed data

Contract OI history

Back to B

Dec 18, 2026 EXPIRATION

B $29.00 Put

B261218P00029000

Latest saved OI22Oct 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 $29.00 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. 24120 2026-10-02: 24 OI2026-10-05: 24 OI2026-10-06: 24 OI2026-10-07: 24 OI2026-10-08: 20 OI2026-10-09: 20 OI2026-10-13: 20 OI2026-10-14: 20 OI2026-10-15: 20 OI2026-10-16: 22 OI2026-10-21: 22 OI2026-10-23: 22 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, 2026Viewing220
Oct 21, 2026220
Oct 16, 202622+2
Oct 15, 2026200
Oct 14, 2026200
Oct 13, 2026200
Oct 09, 2026200
Oct 08, 202620-4
Oct 07, 2026240
Oct 06, 2026240
Oct 05, 2026240
Oct 02, 202624No prior observation