OITracker Cboe delayed data

Contract OI history

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Jan 19, 2029 EXPIRATION

BX $100.00 Put

BX290119P00100000

Latest saved OI937Oct 23, 2026
Last change+151vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BX $100.00 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. 9374680 2026-10-02: 26 OI2026-10-05: 26 OI2026-10-06: 26 OI2026-10-07: 26 OI2026-10-08: 776 OI2026-10-09: 776 OI2026-10-13: 776 OI2026-10-14: 776 OI2026-10-15: 776 OI2026-10-16: 786 OI2026-10-21: 786 OI2026-10-23: 937 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, 2026Viewing937+151
Oct 21, 20267860
Oct 16, 2026786+10
Oct 15, 20267760
Oct 14, 20267760
Oct 13, 20267760
Oct 09, 20267760
Oct 08, 2026776+750
Oct 07, 2026260
Oct 06, 2026260
Oct 05, 2026260
Oct 02, 202626No prior observation