OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

NB $2.50 Put

NB261120P00002500

Latest saved OI101Oct 23, 2026
Last change+25vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
NB $2.50 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. 101500 2026-10-09: 63 OI2026-10-13: 58 OI2026-10-14: 58 OI2026-10-16: 73 OI2026-10-21: 76 OI2026-10-23: 101 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, 2026Viewing101+25
Oct 21, 202676+3
Oct 16, 202673+15
Oct 14, 2026580
Oct 13, 202658-5
Oct 09, 202663No prior observation