OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

BP $40.00 Put

BP280121P00040000

Latest saved OI2,026Oct 23, 2026
Last change-45vs 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. 2,0741,0370 2026-10-02: 1,969 OI2026-10-05: 1,969 OI2026-10-06: 1,969 OI2026-10-07: 1,969 OI2026-10-08: 1,969 OI2026-10-09: 2,074 OI2026-10-13: 2,074 OI2026-10-14: 2,074 OI2026-10-15: 2,074 OI2026-10-16: 2,071 OI2026-10-21: 2,071 OI2026-10-23: 2,026 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, 2026Viewing2,026-45
Oct 21, 20262,0710
Oct 16, 20262,071-3
Oct 15, 20262,0740
Oct 14, 20262,0740
Oct 13, 20262,0740
Oct 09, 20262,074+105
Oct 08, 20261,9690
Oct 07, 20261,9690
Oct 06, 20261,9690
Oct 05, 20261,9690
Oct 02, 20261,969No prior observation