OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

BN $39.00 Put

BN261218P00039000

Latest saved OI40Oct 23, 2026
Last change-141vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BN $39.00 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. 181900 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 0 OI2026-10-07: 10 OI2026-10-08: 50 OI2026-10-09: 70 OI2026-10-13: 81 OI2026-10-14: 111 OI2026-10-15: 181 OI2026-10-16: 181 OI2026-10-21: 181 OI2026-10-23: 40 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, 2026Viewing40-141
Oct 21, 20261810
Oct 16, 20261810
Oct 15, 2026181+70
Oct 14, 2026111+30
Oct 13, 202681+11
Oct 09, 202670+20
Oct 08, 202650+40
Oct 07, 202610+10
Oct 06, 202600
Oct 05, 202600
Oct 02, 20260No prior observation