OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

CPB $20.00 Put

CPB280121P00020000

Latest saved OI1,189Oct 23, 2026
Last change-85vs 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. 1,2956470 2026-10-09: 1,295 OI2026-10-13: 1,275 OI2026-10-14: 1,275 OI2026-10-15: 1,275 OI2026-10-16: 1,275 OI2026-10-21: 1,274 OI2026-10-23: 1,189 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, 2026Viewing1,189-85
Oct 21, 20261,274-1
Oct 16, 20261,2750
Oct 15, 20261,2750
Oct 14, 20261,2750
Oct 13, 20261,275-20
Oct 09, 20261,295No prior observation