OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

NB $7.50 Call

NB280121C00007500

Latest saved OI2,955Oct 23, 2026
Last change-3vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
NB $7.50 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. 2,9581,4790 2026-10-09: 2,913 OI2026-10-13: 2,940 OI2026-10-14: 2,941 OI2026-10-16: 2,950 OI2026-10-21: 2,958 OI2026-10-23: 2,955 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, 20262,955-3
Oct 21, 2026Viewing2,958+8
Oct 16, 20262,950+9
Oct 14, 20262,941+1
Oct 13, 20262,940+27
Oct 09, 20262,913No prior observation