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Contract OI history

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Dec 18, 2026 EXPIRATION

BX $80.00 Put

BX261218P00080000

Latest saved OI6,943Oct 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 $80.00 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. 6,9433,4710 2026-10-02: 534 OI2026-10-05: 534 OI2026-10-06: 613 OI2026-10-07: 613 OI2026-10-08: 613 OI2026-10-09: 619 OI2026-10-13: 619 OI2026-10-14: 617 OI2026-10-15: 6,781 OI2026-10-16: 6,942 OI2026-10-21: 6,942 OI2026-10-23: 6,943 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, 2026Viewing6,943+1
Oct 21, 20266,9420
Oct 16, 20266,942+161
Oct 15, 20266,781+6,164
Oct 14, 2026617-2
Oct 13, 20266190
Oct 09, 2026619+6
Oct 08, 20266130
Oct 07, 20266130
Oct 06, 2026613+79
Oct 05, 20265340
Oct 02, 2026534No prior observation