OITracker Cboe delayed data

Contract OI history

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Oct 23, 2026 EXPIRATION

NB $3.50 Call

NB261023C00003500

Latest saved OI210Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
NB $3.50 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. 2101050 2026-10-09: 160 OI2026-10-13: 190 OI2026-10-14: 190 OI2026-10-16: 209 OI2026-10-21: 210 OI2026-10-23: 210 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, 20262100
Oct 21, 2026Viewing210+1
Oct 16, 2026209+19
Oct 14, 20261900
Oct 13, 2026190+30
Oct 09, 2026160No prior observation