OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

BN $40.00 Call

BN261120C00040000

Latest saved OI1,751Oct 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
BN $40.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,7528760 2026-10-02: 130 OI2026-10-05: 137 OI2026-10-06: 139 OI2026-10-07: 146 OI2026-10-08: 146 OI2026-10-09: 146 OI2026-10-13: 165 OI2026-10-14: 182 OI2026-10-15: 184 OI2026-10-16: 723 OI2026-10-21: 1,752 OI2026-10-23: 1,751 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,751-1
Oct 21, 20261,752+1,029
Oct 16, 2026723+539
Oct 15, 2026184+2
Oct 14, 2026182+17
Oct 13, 2026165+19
Oct 09, 20261460
Oct 08, 20261460
Oct 07, 2026146+7
Oct 06, 2026139+2
Oct 05, 2026137+7
Oct 02, 2026130No prior observation