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Contract OI history

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Dec 18, 2026 EXPIRATION

BX $70.00 Put

BX261218P00070000

Latest saved OI809Oct 23, 2026
Last change-6vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BX $70.00 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. 8204100 2026-10-02: 819 OI2026-10-05: 820 OI2026-10-06: 820 OI2026-10-07: 820 OI2026-10-08: 819 OI2026-10-09: 816 OI2026-10-13: 816 OI2026-10-14: 816 OI2026-10-15: 816 OI2026-10-16: 808 OI2026-10-21: 815 OI2026-10-23: 809 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, 2026Viewing809-6
Oct 21, 2026815+7
Oct 16, 2026808-8
Oct 15, 20268160
Oct 14, 20268160
Oct 13, 20268160
Oct 09, 2026816-3
Oct 08, 2026819-1
Oct 07, 20268200
Oct 06, 20268200
Oct 05, 2026820+1
Oct 02, 2026819No prior observation