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Contract OI history

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Oct 30, 2026 EXPIRATION

CIFR $8.50 Put

CIFR261030P00008500

Latest saved OI1,394Oct 23, 2026
Last change+1,390vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
CIFR $8.50 put open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 1,3946970 2026-10-21: 4 OI2026-10-23: 1,394 OI Oct 21, 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, 2026Viewing1,394+1,390
Oct 21, 20264No prior observation