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Contract OI history

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Nov 20, 2026 EXPIRATION

CIFR $18.00 Put

CIFR261120P00018000

Latest saved OI8,621Oct 23, 2026
Last change-25vs 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. 8,8414,4200 2026-10-09: 8,841 OI2026-10-13: 8,693 OI2026-10-14: 8,693 OI2026-10-15: 8,685 OI2026-10-16: 8,682 OI2026-10-21: 8,646 OI2026-10-23: 8,621 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, 2026Viewing8,621-25
Oct 21, 20268,646-36
Oct 16, 20268,682-3
Oct 15, 20268,685-8
Oct 14, 20268,6930
Oct 13, 20268,693-148
Oct 09, 20268,841No prior observation