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Contract OI history

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Dec 18, 2026 EXPIRATION

CIFR $16.00 Put

CIFR261218P00016000

Latest saved OI974Oct 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 $16.00 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. 1,2546270 2026-10-09: 911 OI2026-10-13: 934 OI2026-10-14: 934 OI2026-10-15: 1,243 OI2026-10-16: 1,254 OI2026-10-21: 973 OI2026-10-23: 974 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, 2026Viewing974+1
Oct 21, 2026973-281
Oct 16, 20261,254+11
Oct 15, 20261,243+309
Oct 14, 20269340
Oct 13, 2026934+23
Oct 09, 2026911No prior observation