OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

CPB $18.50 Call

CPB261030C00018500

Latest saved OI1,131Oct 23, 2026
Last change-3,699vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CPB $18.50 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. 6,3003,1500 2026-10-09: 2,500 OI2026-10-13: 4,700 OI2026-10-14: 6,000 OI2026-10-15: 6,300 OI2026-10-16: 5,278 OI2026-10-21: 4,830 OI2026-10-23: 1,131 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, 2026Viewing1,131-3,699
Oct 21, 20264,830-448
Oct 16, 20265,278-1,022
Oct 15, 20266,300+300
Oct 14, 20266,000+1,300
Oct 13, 20264,700+2,200
Oct 09, 20262,500No prior observation