OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

BX $100.00 Put

BX261030P00100000

Latest saved OI2,038Oct 23, 2026
Last change+11vs 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. 2,0381,0190 2026-10-02: 676 OI2026-10-05: 675 OI2026-10-06: 1,103 OI2026-10-07: 1,104 OI2026-10-08: 1,118 OI2026-10-09: 1,117 OI2026-10-13: 1,185 OI2026-10-14: 1,792 OI2026-10-15: 1,991 OI2026-10-16: 1,991 OI2026-10-21: 2,027 OI2026-10-23: 2,038 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, 2026Viewing2,038+11
Oct 21, 20262,027+36
Oct 16, 20261,9910
Oct 15, 20261,991+199
Oct 14, 20261,792+607
Oct 13, 20261,185+68
Oct 09, 20261,117-1
Oct 08, 20261,118+14
Oct 07, 20261,104+1
Oct 06, 20261,103+428
Oct 05, 2026675-1
Oct 02, 2026676No prior observation