OITracker Cboe delayed data

Contract OI history

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Jan 19, 2029 EXPIRATION

BN $40.00 Call

BN290119C00040000

Latest saved OI644Oct 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 $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. 6443220 2026-10-02: 637 OI2026-10-05: 637 OI2026-10-06: 637 OI2026-10-07: 637 OI2026-10-08: 637 OI2026-10-09: 637 OI2026-10-13: 644 OI2026-10-14: 644 OI2026-10-15: 644 OI2026-10-16: 644 OI2026-10-21: 644 OI2026-10-23: 644 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, 2026Viewing6440
Oct 21, 20266440
Oct 16, 20266440
Oct 15, 20266440
Oct 14, 20266440
Oct 13, 2026644+7
Oct 09, 20266370
Oct 08, 20266370
Oct 07, 20266370
Oct 06, 20266370
Oct 05, 20266370
Oct 02, 2026637No prior observation