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Contract OI history

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Nov 20, 2026 EXPIRATION

CYPH $3.50 Put

CYPH261120P00003500

Latest saved OI323Oct 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 $3.50 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. 3551770 2026-10-09: 355 OI2026-10-13: 345 OI2026-10-15: 323 OI2026-10-16: 323 OI2026-10-21: 323 OI2026-10-23: 323 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, 2026Viewing3230
Oct 21, 20263230
Oct 16, 20263230
Oct 15, 2026323-22
Oct 13, 2026345-10
Oct 09, 2026355No prior observation