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Contract OI history

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Dec 18, 2026 EXPIRATION

BP $40.00 Put

BP261218P00040000

Latest saved OI2,690Oct 23, 2026
Last change-1vs 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. 2,6911,3450 2026-10-02: 2,659 OI2026-10-05: 2,659 OI2026-10-06: 2,659 OI2026-10-07: 2,670 OI2026-10-08: 2,670 OI2026-10-09: 2,610 OI2026-10-13: 2,682 OI2026-10-14: 2,682 OI2026-10-15: 2,668 OI2026-10-16: 2,691 OI2026-10-21: 2,691 OI2026-10-23: 2,690 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, 2026Viewing2,690-1
Oct 21, 20262,6910
Oct 16, 20262,691+23
Oct 15, 20262,668-14
Oct 14, 20262,6820
Oct 13, 20262,682+72
Oct 09, 20262,610-60
Oct 08, 20262,6700
Oct 07, 20262,670+11
Oct 06, 20262,6590
Oct 05, 20262,6590
Oct 02, 20262,659No prior observation