OITracker Cboe delayed data

Contract OI history

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Nov 06, 2026 EXPIRATION

CPB $21.50 Call

CPB261106C00021500

Latest saved OI611Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CPB $21.50 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6123060 2026-10-09: 111 OI2026-10-13: 113 OI2026-10-14: 114 OI2026-10-15: 114 OI2026-10-16: 612 OI2026-10-21: 612 OI2026-10-23: 611 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, 2026Viewing611-1
Oct 21, 20266120
Oct 16, 2026612+498
Oct 15, 20261140
Oct 14, 2026114+1
Oct 13, 2026113+2
Oct 09, 2026111No prior observation