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Contract OI history

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Dec 17, 2027 EXPIRATION

CIFR $40.00 Put

CIFR271217P00040000

Latest saved OI495Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CIFR $40.00 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. 6133060 2026-10-09: 613 OI2026-10-13: 613 OI2026-10-14: 613 OI2026-10-15: 613 OI2026-10-16: 613 OI2026-10-21: 495 OI2026-10-23: 495 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, 2026Viewing4950
Oct 21, 2026495-118
Oct 16, 20266130
Oct 15, 20266130
Oct 14, 20266130
Oct 13, 20266130
Oct 09, 2026613No prior observation