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Contract OI history

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Dec 18, 2026 EXPIRATION

CYPH $1000.00 Put

CYPH261218P00001000

Latest saved OI7,783Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CYPH $1000.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 7,7833,8910 2026-10-09: 7,764 OI2026-10-13: 7,764 OI2026-10-15: 7,774 OI2026-10-16: 7,774 OI2026-10-21: 7,783 OI2026-10-23: 7,783 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

CYPH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing7,7830
Oct 21, 20267,783+9
Oct 16, 20267,7740
Oct 15, 20267,774+10
Oct 13, 20267,7640
Oct 09, 20267,764No prior observation