OITracker Cboe delayed data

Contract OI history

Back to CPB

Oct 23, 2026 EXPIRATION

CPB $21.50 Call

CPB261023C00021500

Latest saved OI408Oct 23, 2026
Last change+96vs 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. 4082040 2026-10-09: 248 OI2026-10-13: 247 OI2026-10-14: 246 OI2026-10-15: 246 OI2026-10-16: 312 OI2026-10-21: 312 OI2026-10-23: 408 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, 2026Viewing408+96
Oct 21, 20263120
Oct 16, 2026312+66
Oct 15, 20262460
Oct 14, 2026246-1
Oct 13, 2026247-1
Oct 09, 2026248No prior observation