OITracker Cboe delayed data

Contract OI history

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Sep 17, 2027 EXPIRATION

BX $90.00 Put

BX270917P00090000

Latest saved OI3,801Oct 23, 2026
Last change+34vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BX $90.00 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. 3,8011,9000 2026-10-02: 1,703 OI2026-10-05: 2,103 OI2026-10-06: 2,952 OI2026-10-07: 3,051 OI2026-10-08: 3,051 OI2026-10-09: 3,052 OI2026-10-13: 3,052 OI2026-10-14: 3,053 OI2026-10-15: 3,054 OI2026-10-16: 3,057 OI2026-10-21: 3,767 OI2026-10-23: 3,801 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, 2026Viewing3,801+34
Oct 21, 20263,767+710
Oct 16, 20263,057+3
Oct 15, 20263,054+1
Oct 14, 20263,053+1
Oct 13, 20263,0520
Oct 09, 20263,052+1
Oct 08, 20263,0510
Oct 07, 20263,051+99
Oct 06, 20262,952+849
Oct 05, 20262,103+400
Oct 02, 20261,703No prior observation