OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

BN $42.00 Put

BN261120P00042000

Latest saved OI59Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BN $42.00 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. 3561780 2026-10-02: 356 OI2026-10-05: 286 OI2026-10-06: 286 OI2026-10-07: 146 OI2026-10-08: 146 OI2026-10-09: 146 OI2026-10-13: 146 OI2026-10-14: 146 OI2026-10-15: 59 OI2026-10-16: 59 OI2026-10-21: 59 OI2026-10-23: 59 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, 2026Viewing590
Oct 21, 2026590
Oct 16, 2026590
Oct 15, 202659-87
Oct 14, 20261460
Oct 13, 20261460
Oct 09, 20261460
Oct 08, 20261460
Oct 07, 2026146-140
Oct 06, 20262860
Oct 05, 2026286-70
Oct 02, 2026356No prior observation