OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

NB $2.50 Put

NB270115P00002500

Latest saved OI585Oct 23, 2026
Last change+28vs 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. 5852920 2026-10-09: 547 OI2026-10-13: 548 OI2026-10-14: 548 OI2026-10-16: 549 OI2026-10-21: 557 OI2026-10-23: 585 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, 2026585+28
Oct 21, 2026Viewing557+8
Oct 16, 2026549+1
Oct 14, 20265480
Oct 13, 2026548+1
Oct 09, 2026547No prior observation