OITracker Cboe delayed data

Contract OI history

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Dec 17, 2027 EXPIRATION

BX $120.00 Put

BX271217P00120000

Latest saved OI855Oct 23, 2026
Last change+1vs 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. 8554270 2026-10-02: 851 OI2026-10-05: 851 OI2026-10-06: 855 OI2026-10-07: 855 OI2026-10-08: 855 OI2026-10-09: 853 OI2026-10-13: 853 OI2026-10-14: 852 OI2026-10-15: 852 OI2026-10-16: 854 OI2026-10-21: 854 OI2026-10-23: 855 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, 2026Viewing855+1
Oct 21, 20268540
Oct 16, 2026854+2
Oct 15, 20268520
Oct 14, 2026852-1
Oct 13, 20268530
Oct 09, 2026853-2
Oct 08, 20268550
Oct 07, 20268550
Oct 06, 2026855+4
Oct 05, 20268510
Oct 02, 2026851No prior observation