OITracker Cboe delayed data

Contract OI history

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Dec 17, 2027 EXPIRATION

BX $100.00 Put

BX271217P00100000

Latest saved OI2,349Oct 23, 2026
Last change+109vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BX $100.00 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. 2,3491,1740 2026-10-02: 2,240 OI2026-10-05: 2,240 OI2026-10-06: 2,240 OI2026-10-07: 2,240 OI2026-10-08: 2,240 OI2026-10-09: 2,240 OI2026-10-13: 2,240 OI2026-10-14: 2,241 OI2026-10-15: 2,242 OI2026-10-16: 2,240 OI2026-10-21: 2,240 OI2026-10-23: 2,349 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, 2026Viewing2,349+109
Oct 21, 20262,2400
Oct 16, 20262,240-2
Oct 15, 20262,242+1
Oct 14, 20262,241+1
Oct 13, 20262,2400
Oct 09, 20262,2400
Oct 08, 20262,2400
Oct 07, 20262,2400
Oct 06, 20262,2400
Oct 05, 20262,2400
Oct 02, 20262,240No prior observation