OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

BX $140.00 Call

BX270115C00140000

Latest saved OI3,921Oct 23, 2026
Last change+167vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BX $140.00 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. 3,9211,9600 2026-10-02: 3,738 OI2026-10-05: 3,723 OI2026-10-06: 3,722 OI2026-10-07: 3,713 OI2026-10-08: 3,779 OI2026-10-09: 3,769 OI2026-10-13: 3,769 OI2026-10-14: 3,785 OI2026-10-15: 3,765 OI2026-10-16: 3,763 OI2026-10-21: 3,754 OI2026-10-23: 3,921 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, 2026Viewing3,921+167
Oct 21, 20263,754-9
Oct 16, 20263,763-2
Oct 15, 20263,765-20
Oct 14, 20263,785+16
Oct 13, 20263,7690
Oct 09, 20263,769-10
Oct 08, 20263,779+66
Oct 07, 20263,713-9
Oct 06, 20263,722-1
Oct 05, 20263,723-15
Oct 02, 20263,738No prior observation