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Contract OI history

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Nov 27, 2026 EXPIRATION

CIFR $13.50 Put

CIFR261127P00013500

Latest saved OI251Oct 23, 2026
Last change-3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CIFR $13.50 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. 2541270 2026-10-09: 12 OI2026-10-13: 194 OI2026-10-14: 194 OI2026-10-15: 210 OI2026-10-16: 235 OI2026-10-21: 254 OI2026-10-23: 251 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, 2026Viewing251-3
Oct 21, 2026254+19
Oct 16, 2026235+25
Oct 15, 2026210+16
Oct 14, 20261940
Oct 13, 2026194+182
Oct 09, 202612No prior observation