OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

BX $115.00 Put

BX270115P00115000

Latest saved OI4,460Oct 23, 2026
Last change-182vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BX $115.00 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. 4,7082,3540 2026-10-02: 4,670 OI2026-10-05: 4,678 OI2026-10-06: 4,675 OI2026-10-07: 4,708 OI2026-10-08: 4,704 OI2026-10-09: 4,704 OI2026-10-13: 4,705 OI2026-10-14: 4,705 OI2026-10-15: 4,706 OI2026-10-16: 4,707 OI2026-10-21: 4,642 OI2026-10-23: 4,460 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, 2026Viewing4,460-182
Oct 21, 20264,642-65
Oct 16, 20264,707+1
Oct 15, 20264,706+1
Oct 14, 20264,7050
Oct 13, 20264,705+1
Oct 09, 20264,7040
Oct 08, 20264,704-4
Oct 07, 20264,708+33
Oct 06, 20264,675-3
Oct 05, 20264,678+8
Oct 02, 20264,670No prior observation