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Contract OI history

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Dec 18, 2026 EXPIRATION

CYPH $2.50 Call

CYPH261218C00002500

Latest saved OI3,962Oct 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 $2.50 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. 3,9691,9840 2026-10-09: 3,851 OI2026-10-13: 3,851 OI2026-10-15: 3,830 OI2026-10-16: 3,969 OI2026-10-21: 3,962 OI2026-10-23: 3,962 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, 2026Viewing3,9620
Oct 21, 20263,962-7
Oct 16, 20263,969+139
Oct 15, 20263,830-21
Oct 13, 20263,8510
Oct 09, 20263,851No prior observation