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Contract OI history

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Dec 18, 2026 EXPIRATION

CYPH $5.50 Call

CYPH261218C00005500

Latest saved OI482Oct 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 $5.50 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4822410 2026-10-09: 473 OI2026-10-13: 473 OI2026-10-15: 477 OI2026-10-16: 482 OI2026-10-21: 482 OI2026-10-23: 482 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, 2026Viewing4820
Oct 21, 20264820
Oct 16, 2026482+5
Oct 15, 2026477+4
Oct 13, 20264730
Oct 09, 2026473No prior observation