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Contract OI history

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Jan 21, 2028 EXPIRATION

CPB $18.00 Put

CPB280121P00018000

Latest saved OI709Oct 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 $18.00 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. 7113550 2026-10-09: 710 OI2026-10-13: 710 OI2026-10-14: 710 OI2026-10-15: 711 OI2026-10-16: 711 OI2026-10-21: 708 OI2026-10-23: 709 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, 2026Viewing709+1
Oct 21, 2026708-3
Oct 16, 20267110
Oct 15, 2026711+1
Oct 14, 20267100
Oct 13, 20267100
Oct 09, 2026710No prior observation