OITracker Cboe delayed data

Contract OI history

Back to B

Dec 18, 2026 EXPIRATION

B $32.00 Put

B261218P00032000

Latest saved OI1,213Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $32.00 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. 1,2136060 2026-10-02: 663 OI2026-10-05: 663 OI2026-10-06: 663 OI2026-10-07: 1,162 OI2026-10-08: 1,165 OI2026-10-09: 1,165 OI2026-10-13: 1,158 OI2026-10-14: 1,157 OI2026-10-15: 1,211 OI2026-10-16: 1,211 OI2026-10-21: 1,211 OI2026-10-23: 1,213 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, 2026Viewing1,213+2
Oct 21, 20261,2110
Oct 16, 20261,2110
Oct 15, 20261,211+54
Oct 14, 20261,157-1
Oct 13, 20261,158-7
Oct 09, 20261,1650
Oct 08, 20261,165+3
Oct 07, 20261,162+499
Oct 06, 20266630
Oct 05, 20266630
Oct 02, 2026663No prior observation