OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

BP $40.00 Put

BP261120P00040000

Latest saved OI215Oct 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. 2261130 2026-10-02: 207 OI2026-10-05: 222 OI2026-10-06: 222 OI2026-10-07: 221 OI2026-10-08: 222 OI2026-10-09: 223 OI2026-10-13: 226 OI2026-10-14: 226 OI2026-10-15: 216 OI2026-10-16: 216 OI2026-10-21: 214 OI2026-10-23: 215 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, 2026Viewing215+1
Oct 21, 2026214-2
Oct 16, 20262160
Oct 15, 2026216-10
Oct 14, 20262260
Oct 13, 2026226+3
Oct 09, 2026223+1
Oct 08, 2026222+1
Oct 07, 2026221-1
Oct 06, 20262220
Oct 05, 2026222+15
Oct 02, 2026207No prior observation