OITracker Cboe delayed data

Contract OI history

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May 21, 2027 EXPIRATION

NB $5.00 Put

NB270521P00005000

Latest saved OI877Oct 23, 2026
Last change+1vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
NB $5.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 8774380 2026-10-09: 65 OI2026-10-13: 65 OI2026-10-14: 66 OI2026-10-16: 866 OI2026-10-21: 876 OI2026-10-23: 877 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, 2026877+1
Oct 21, 2026Viewing876+10
Oct 16, 2026866+800
Oct 14, 202666+1
Oct 13, 2026650
Oct 09, 202665No prior observation