OITracker Cboe delayed data

Contract OI history

Back to CYPH

Dec 18, 2026 EXPIRATION

CYPH $3.50 Call

CYPH261218C00003500

Latest saved OI355Oct 23, 2026
Last change+16vs 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. 3701850 2026-10-09: 352 OI2026-10-13: 358 OI2026-10-15: 370 OI2026-10-16: 370 OI2026-10-21: 339 OI2026-10-23: 355 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, 2026Viewing355+16
Oct 21, 2026339-31
Oct 16, 20263700
Oct 15, 2026370+12
Oct 13, 2026358+6
Oct 09, 2026352No prior observation