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Contract OI history

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Jan 21, 2028 EXPIRATION

BX $85.00 Put

BX280121P00085000

Latest saved OI2,841Oct 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 $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. 2,8411,4200 2026-10-02: 2,835 OI2026-10-05: 2,835 OI2026-10-06: 2,835 OI2026-10-07: 2,835 OI2026-10-08: 2,836 OI2026-10-09: 2,836 OI2026-10-13: 2,836 OI2026-10-14: 2,836 OI2026-10-15: 2,836 OI2026-10-16: 2,836 OI2026-10-21: 2,835 OI2026-10-23: 2,841 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, 2026Viewing2,841+6
Oct 21, 20262,835-1
Oct 16, 20262,8360
Oct 15, 20262,8360
Oct 14, 20262,8360
Oct 13, 20262,8360
Oct 09, 20262,8360
Oct 08, 20262,836+1
Oct 07, 20262,8350
Oct 06, 20262,8350
Oct 05, 20262,8350
Oct 02, 20262,835No prior observation