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Contract OI history

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Jan 19, 2029 EXPIRATION

CIFR $8.00 Put

CIFR290119P00008000

Latest saved OI212Oct 23, 2026
Last change+54vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CIFR $8.00 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. 2121060 2026-10-09: 31 OI2026-10-13: 31 OI2026-10-14: 31 OI2026-10-15: 142 OI2026-10-16: 146 OI2026-10-21: 158 OI2026-10-23: 212 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, 2026Viewing212+54
Oct 21, 2026158+12
Oct 16, 2026146+4
Oct 15, 2026142+111
Oct 14, 2026310
Oct 13, 2026310
Oct 09, 202631No prior observation