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Oct 23, 2026 EXPIRATION

CIFR $17.50 Put

CIFR261023P00017500

Latest saved OI6Oct 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 $17.50 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. 2041020 2026-10-09: 204 OI2026-10-13: 202 OI2026-10-14: 202 OI2026-10-15: 197 OI2026-10-16: 18 OI2026-10-21: 7 OI2026-10-23: 6 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, 2026Viewing6-1
Oct 21, 20267-11
Oct 16, 202618-179
Oct 15, 2026197-5
Oct 14, 20262020
Oct 13, 2026202-2
Oct 09, 2026204No prior observation