OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

CNI $115.00 Put

CNI270115P00115000

Latest saved OI16Oct 23, 2026
Last change-12vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CNI $115.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 31150 2026-10-02: 31 OI2026-10-05: 31 OI2026-10-06: 31 OI2026-10-07: 31 OI2026-10-08: 30 OI2026-10-09: 30 OI2026-10-13: 30 OI2026-10-14: 30 OI2026-10-16: 28 OI2026-10-20: 28 OI2026-10-23: 16 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

CNI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing16-12
Oct 20, 2026280
Oct 16, 202628-2
Oct 14, 2026300
Oct 13, 2026300
Oct 09, 2026300
Oct 08, 202630-1
Oct 07, 2026310
Oct 06, 2026310
Oct 05, 2026310
Oct 02, 202631No prior observation