OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

BP $50.00 Put

BP261120P00050000

Latest saved OI223Oct 23, 2026
Last change+21vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BP $50.00 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. 2231110 2026-10-02: 50 OI2026-10-05: 50 OI2026-10-06: 50 OI2026-10-07: 50 OI2026-10-08: 50 OI2026-10-09: 50 OI2026-10-13: 81 OI2026-10-14: 81 OI2026-10-15: 83 OI2026-10-16: 101 OI2026-10-21: 202 OI2026-10-23: 223 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, 2026Viewing223+21
Oct 21, 2026202+101
Oct 16, 2026101+18
Oct 15, 202683+2
Oct 14, 2026810
Oct 13, 202681+31
Oct 09, 2026500
Oct 08, 2026500
Oct 07, 2026500
Oct 06, 2026500
Oct 05, 2026500
Oct 02, 202650No prior observation