OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

CPB $25.00 Put

CPB270115P00025000

Latest saved OI3,217Oct 23, 2026
Last change-25vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CPB $25.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3,5011,7500 2026-10-09: 3,499 OI2026-10-13: 3,498 OI2026-10-14: 3,501 OI2026-10-15: 3,501 OI2026-10-16: 3,247 OI2026-10-21: 3,242 OI2026-10-23: 3,217 OI Oct 09, 2026Oct 23, 2026

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

CPB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3,217-25
Oct 21, 20263,242-5
Oct 16, 20263,247-254
Oct 15, 20263,5010
Oct 14, 20263,501+3
Oct 13, 20263,498-1
Oct 09, 20263,499No prior observation