OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

BP $40.00 Put

BP270115P00040000

Latest saved OI2,600Oct 23, 2026
Last change0vs 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. 2,6001,3000 2026-10-02: 2,546 OI2026-10-05: 2,575 OI2026-10-06: 2,575 OI2026-10-07: 2,574 OI2026-10-08: 2,574 OI2026-10-09: 2,574 OI2026-10-13: 2,575 OI2026-10-14: 2,575 OI2026-10-15: 2,575 OI2026-10-16: 2,575 OI2026-10-21: 2,600 OI2026-10-23: 2,600 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, 2026Viewing2,6000
Oct 21, 20262,600+25
Oct 16, 20262,5750
Oct 15, 20262,5750
Oct 14, 20262,5750
Oct 13, 20262,575+1
Oct 09, 20262,5740
Oct 08, 20262,5740
Oct 07, 20262,574-1
Oct 06, 20262,5750
Oct 05, 20262,575+29
Oct 02, 20262,546No prior observation