OITracker Cboe delayed data

Contract OI history

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Jun 17, 2027 EXPIRATION

BX $120.00 Put

BX270617P00120000

Latest saved OI2,994Oct 23, 2026
Last change+1,015vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BX $120.00 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. 2,9941,4970 2026-10-02: 1,968 OI2026-10-05: 1,968 OI2026-10-06: 1,968 OI2026-10-07: 1,967 OI2026-10-08: 1,968 OI2026-10-09: 1,965 OI2026-10-13: 1,965 OI2026-10-14: 1,966 OI2026-10-15: 1,973 OI2026-10-16: 1,978 OI2026-10-21: 1,979 OI2026-10-23: 2,994 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, 2026Viewing2,994+1,015
Oct 21, 20261,979+1
Oct 16, 20261,978+5
Oct 15, 20261,973+7
Oct 14, 20261,966+1
Oct 13, 20261,9650
Oct 09, 20261,965-3
Oct 08, 20261,968+1
Oct 07, 20261,967-1
Oct 06, 20261,9680
Oct 05, 20261,9680
Oct 02, 20261,968No prior observation