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Contract OI history

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Sep 17, 2027 EXPIRATION

BX $115.00 Put

BX270917P00115000

Latest saved OI588Oct 23, 2026
Last change+35vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BX $115.00 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. 5882940 2026-10-02: 348 OI2026-10-05: 348 OI2026-10-06: 453 OI2026-10-07: 502 OI2026-10-08: 504 OI2026-10-09: 540 OI2026-10-13: 540 OI2026-10-14: 545 OI2026-10-15: 551 OI2026-10-16: 553 OI2026-10-21: 553 OI2026-10-23: 588 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, 2026Viewing588+35
Oct 21, 20265530
Oct 16, 2026553+2
Oct 15, 2026551+6
Oct 14, 2026545+5
Oct 13, 20265400
Oct 09, 2026540+36
Oct 08, 2026504+2
Oct 07, 2026502+49
Oct 06, 2026453+105
Oct 05, 20263480
Oct 02, 2026348No prior observation