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Contract OI history

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Dec 17, 2027 EXPIRATION

CIFR $20.00 Put

CIFR271217P00020000

Latest saved OI198Oct 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 $20.00 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. 2161080 2026-10-09: 195 OI2026-10-13: 206 OI2026-10-14: 206 OI2026-10-15: 216 OI2026-10-16: 214 OI2026-10-21: 197 OI2026-10-23: 198 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, 2026Viewing198+1
Oct 21, 2026197-17
Oct 16, 2026214-2
Oct 15, 2026216+10
Oct 14, 20262060
Oct 13, 2026206+11
Oct 09, 2026195No prior observation