OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

BX $90.00 Put

BX270319P00090000

Latest saved OI2,424Oct 23, 2026
Last change+884vs 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. 2,4241,2120 2026-10-02: 1,235 OI2026-10-05: 1,236 OI2026-10-06: 1,239 OI2026-10-07: 1,239 OI2026-10-08: 1,242 OI2026-10-09: 1,495 OI2026-10-13: 1,495 OI2026-10-14: 1,508 OI2026-10-15: 1,521 OI2026-10-16: 1,535 OI2026-10-21: 1,540 OI2026-10-23: 2,424 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, 2026Viewing2,424+884
Oct 21, 20261,540+5
Oct 16, 20261,535+14
Oct 15, 20261,521+13
Oct 14, 20261,508+13
Oct 13, 20261,4950
Oct 09, 20261,495+253
Oct 08, 20261,242+3
Oct 07, 20261,2390
Oct 06, 20261,239+3
Oct 05, 20261,236+1
Oct 02, 20261,235No prior observation