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Contract OI history

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Oct 30, 2026 EXPIRATION

CIFR $18.00 Put

CIFR261030P00018000

Latest saved OI21Oct 23, 2026
Last change-86vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CIFR $18.00 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. 1,4467230 2026-10-09: 1,446 OI2026-10-13: 1,441 OI2026-10-14: 1,441 OI2026-10-15: 1,178 OI2026-10-16: 1,177 OI2026-10-21: 107 OI2026-10-23: 21 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, 2026Viewing21-86
Oct 21, 2026107-1,070
Oct 16, 20261,177-1
Oct 15, 20261,178-263
Oct 14, 20261,4410
Oct 13, 20261,441-5
Oct 09, 20261,446No prior observation