OITracker Cboe delayed data

Contract OI history

Back to BULL

Oct 23, 2026 EXPIRATION

BULL $8.50 Put

BULL261023P00008500

Latest saved OI45Oct 23, 2026
Last change-30vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BULL $8.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 87430 2026-10-09: 87 OI2026-10-13: 87 OI2026-10-14: 87 OI2026-10-15: 87 OI2026-10-16: 86 OI2026-10-21: 75 OI2026-10-23: 45 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BULL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing45-30
Oct 21, 202675-11
Oct 16, 202686-1
Oct 15, 2026870
Oct 14, 2026870
Oct 13, 2026870
Oct 09, 202687No prior observation