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Contract OI history

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Mar 19, 2027 EXPIRATION

BX $85.00 Put

BX270319P00085000

Latest saved OI707Oct 23, 2026
Last change-281vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BX $85.00 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. 9884940 2026-10-02: 874 OI2026-10-05: 874 OI2026-10-06: 874 OI2026-10-07: 874 OI2026-10-08: 877 OI2026-10-09: 877 OI2026-10-13: 877 OI2026-10-14: 888 OI2026-10-15: 888 OI2026-10-16: 888 OI2026-10-21: 988 OI2026-10-23: 707 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, 2026Viewing707-281
Oct 21, 2026988+100
Oct 16, 20268880
Oct 15, 20268880
Oct 14, 2026888+11
Oct 13, 20268770
Oct 09, 20268770
Oct 08, 2026877+3
Oct 07, 20268740
Oct 06, 20268740
Oct 05, 20268740
Oct 02, 2026874No prior observation