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Contract OI history

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Mar 19, 2027 EXPIRATION

CIFR $18.00 Put

CIFR270319P00018000

Latest saved OI570Oct 23, 2026
Last change+4vs 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. 5702850 2026-10-09: 559 OI2026-10-13: 564 OI2026-10-14: 564 OI2026-10-15: 564 OI2026-10-16: 563 OI2026-10-21: 566 OI2026-10-23: 570 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, 2026Viewing570+4
Oct 21, 2026566+3
Oct 16, 2026563-1
Oct 15, 20265640
Oct 14, 20265640
Oct 13, 2026564+5
Oct 09, 2026559No prior observation