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Contract OI history

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Jun 17, 2027 EXPIRATION

BX $85.00 Put

BX270617P00085000

Latest saved OI1,520Oct 23, 2026
Last change+50vs 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. 1,5207600 2026-10-02: 1,454 OI2026-10-05: 1,454 OI2026-10-06: 1,454 OI2026-10-07: 1,466 OI2026-10-08: 1,468 OI2026-10-09: 1,468 OI2026-10-13: 1,468 OI2026-10-14: 1,468 OI2026-10-15: 1,469 OI2026-10-16: 1,469 OI2026-10-21: 1,470 OI2026-10-23: 1,520 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, 2026Viewing1,520+50
Oct 21, 20261,470+1
Oct 16, 20261,4690
Oct 15, 20261,469+1
Oct 14, 20261,4680
Oct 13, 20261,4680
Oct 09, 20261,4680
Oct 08, 20261,468+2
Oct 07, 20261,466+12
Oct 06, 20261,4540
Oct 05, 20261,4540
Oct 02, 20261,454No prior observation