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Contract OI history

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Dec 18, 2026 EXPIRATION

CIFR $21.00 Call

CIFR261218C00021000

Latest saved OI718Oct 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
CIFR $21.00 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. 7463730 2026-10-09: 715 OI2026-10-13: 746 OI2026-10-14: 746 OI2026-10-15: 723 OI2026-10-16: 719 OI2026-10-21: 719 OI2026-10-23: 718 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

CIFR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing718-1
Oct 21, 20267190
Oct 16, 2026719-4
Oct 15, 2026723-23
Oct 14, 20267460
Oct 13, 2026746+31
Oct 09, 2026715No prior observation