OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

NB $500.00 Call

NB261030C00000500

Latest saved OI288Oct 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 $500.00 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. 2881440 2026-10-09: 274 OI2026-10-13: 275 OI2026-10-14: 281 OI2026-10-16: 282 OI2026-10-21: 288 OI2026-10-23: 288 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, 2026Viewing2880
Oct 21, 2026288+6
Oct 16, 2026282+1
Oct 14, 2026281+6
Oct 13, 2026275+1
Oct 09, 2026274No prior observation