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Contract OI history

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Jan 19, 2029 EXPIRATION

CYPH $2.50 Call

CYPH290119C00002500

Latest saved OI607Oct 23, 2026
Last change+4vs 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. 6073030 2026-10-09: 549 OI2026-10-13: 549 OI2026-10-15: 598 OI2026-10-16: 602 OI2026-10-21: 603 OI2026-10-23: 607 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, 2026Viewing607+4
Oct 21, 2026603+1
Oct 16, 2026602+4
Oct 15, 2026598+49
Oct 13, 20265490
Oct 09, 2026549No prior observation