OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

NB $2.50 Call

NB280121C00002500

Latest saved OI1,223Oct 23, 2026
Last change+5vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
NB $2.50 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1,2276130 2026-10-09: 1,227 OI2026-10-13: 1,227 OI2026-10-14: 1,226 OI2026-10-16: 1,218 OI2026-10-21: 1,218 OI2026-10-23: 1,223 OI Oct 09, 2026Oct 23, 2026

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

NB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,223+5
Oct 21, 20261,2180
Oct 16, 20261,218-8
Oct 14, 20261,226-1
Oct 13, 20261,2270
Oct 09, 20261,227No prior observation