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Contract OI history

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Mar 19, 2027 EXPIRATION

CYPH $2.50 Put

CYPH270319P00002500

Latest saved OI2,913Oct 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 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. 2,9331,4660 2026-10-09: 2,933 OI2026-10-13: 2,932 OI2026-10-15: 2,932 OI2026-10-16: 2,933 OI2026-10-21: 2,913 OI2026-10-23: 2,913 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, 2026Viewing2,9130
Oct 21, 20262,913-20
Oct 16, 20262,933+1
Oct 15, 20262,9320
Oct 13, 20262,932-1
Oct 09, 20262,933No prior observation