OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

BN $40.00 Call

BN261218C00040000

Latest saved OI118Oct 23, 2026
Last change+14vs 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. 118590 2026-10-02: 9 OI2026-10-05: 9 OI2026-10-06: 13 OI2026-10-07: 37 OI2026-10-08: 37 OI2026-10-09: 37 OI2026-10-13: 40 OI2026-10-14: 30 OI2026-10-15: 49 OI2026-10-16: 62 OI2026-10-21: 104 OI2026-10-23: 118 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, 2026Viewing118+14
Oct 21, 2026104+42
Oct 16, 202662+13
Oct 15, 202649+19
Oct 14, 202630-10
Oct 13, 202640+3
Oct 09, 2026370
Oct 08, 2026370
Oct 07, 202637+24
Oct 06, 202613+4
Oct 05, 202690
Oct 02, 20269No prior observation