OITracker Cboe delayed data

Contract OI history

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May 21, 2027 EXPIRATION

NB $5.00 Call

NB270521C00005000

Latest saved OI399Oct 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 $5.00 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. 3991990 2026-10-09: 171 OI2026-10-13: 315 OI2026-10-14: 345 OI2026-10-16: 370 OI2026-10-21: 399 OI2026-10-23: 399 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, 2026Viewing3990
Oct 21, 2026399+29
Oct 16, 2026370+25
Oct 14, 2026345+30
Oct 13, 2026315+144
Oct 09, 2026171No prior observation