OITracker Cboe delayed data

Contract OI history

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Jun 17, 2027 EXPIRATION

BP $40.00 Put

BP270617P00040000

Latest saved OI542Oct 23, 2026
Last change+38vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BP $40.00 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. 5422710 2026-10-02: 499 OI2026-10-05: 499 OI2026-10-06: 499 OI2026-10-07: 499 OI2026-10-08: 499 OI2026-10-09: 502 OI2026-10-13: 503 OI2026-10-14: 503 OI2026-10-15: 503 OI2026-10-16: 504 OI2026-10-21: 504 OI2026-10-23: 542 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BP contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing542+38
Oct 21, 20265040
Oct 16, 2026504+1
Oct 15, 20265030
Oct 14, 20265030
Oct 13, 2026503+1
Oct 09, 2026502+3
Oct 08, 20264990
Oct 07, 20264990
Oct 06, 20264990
Oct 05, 20264990
Oct 02, 2026499No prior observation