OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

CPB $20.00 Put

CPB270115P00020000

Latest saved OI11,513Oct 23, 2026
Last change+11vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CPB $20.00 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. 11,5135,7560 2026-10-09: 11,241 OI2026-10-13: 11,360 OI2026-10-14: 11,360 OI2026-10-15: 11,433 OI2026-10-16: 11,458 OI2026-10-21: 11,502 OI2026-10-23: 11,513 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, 2026Viewing11,513+11
Oct 21, 202611,502+44
Oct 16, 202611,458+25
Oct 15, 202611,433+73
Oct 14, 202611,3600
Oct 13, 202611,360+119
Oct 09, 202611,241No prior observation