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Contract OI history

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Oct 30, 2026 EXPIRATION

CYPH $3.50 Call

CYPH261030C00003500

Latest saved OI310Oct 23, 2026
Last change+141vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CYPH $3.50 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. 3101550 2026-10-09: 192 OI2026-10-13: 200 OI2026-10-15: 193 OI2026-10-16: 150 OI2026-10-21: 169 OI2026-10-23: 310 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, 2026Viewing310+141
Oct 21, 2026169+19
Oct 16, 2026150-43
Oct 15, 2026193-7
Oct 13, 2026200+8
Oct 09, 2026192No prior observation