OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

BX $155.00 Call

BX270115C00155000

Latest saved OI1,214Oct 23, 2026
Last change-14vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BX $155.00 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. 1,2886440 2026-10-02: 1,280 OI2026-10-05: 1,281 OI2026-10-06: 1,277 OI2026-10-07: 1,277 OI2026-10-08: 1,277 OI2026-10-09: 1,277 OI2026-10-13: 1,262 OI2026-10-14: 1,249 OI2026-10-15: 1,288 OI2026-10-16: 1,288 OI2026-10-21: 1,228 OI2026-10-23: 1,214 OI Oct 02, 2026Oct 23, 2026

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

BX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,214-14
Oct 21, 20261,228-60
Oct 16, 20261,2880
Oct 15, 20261,288+39
Oct 14, 20261,249-13
Oct 13, 20261,262-15
Oct 09, 20261,2770
Oct 08, 20261,2770
Oct 07, 20261,2770
Oct 06, 20261,277-4
Oct 05, 20261,281+1
Oct 02, 20261,280No prior observation