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Contract OI history

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Dec 18, 2026 EXPIRATION

BP $42.00 Put

BP261218P00042000

Latest saved OI974Oct 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 $42.00 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. 9744870 2026-10-02: 964 OI2026-10-05: 965 OI2026-10-06: 965 OI2026-10-07: 968 OI2026-10-08: 964 OI2026-10-09: 962 OI2026-10-13: 962 OI2026-10-14: 962 OI2026-10-15: 962 OI2026-10-16: 962 OI2026-10-21: 973 OI2026-10-23: 974 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, 2026Viewing974+1
Oct 21, 2026973+11
Oct 16, 20269620
Oct 15, 20269620
Oct 14, 20269620
Oct 13, 20269620
Oct 09, 2026962-2
Oct 08, 2026964-4
Oct 07, 2026968+3
Oct 06, 20269650
Oct 05, 2026965+1
Oct 02, 2026964No prior observation