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Contract OI history

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Dec 17, 2027 EXPIRATION

CIFR $4.00 Put

CIFR271217P00004000

Latest saved OI311Oct 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 $4.00 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. 4102050 2026-10-09: 408 OI2026-10-13: 408 OI2026-10-14: 408 OI2026-10-15: 408 OI2026-10-16: 410 OI2026-10-21: 310 OI2026-10-23: 311 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, 2026Viewing311+1
Oct 21, 2026310-100
Oct 16, 2026410+2
Oct 15, 20264080
Oct 14, 20264080
Oct 13, 20264080
Oct 09, 2026408No prior observation