OITracker Cboe delayed data

Contract OI history

Back to CASY

Dec 18, 2026 EXPIRATION

CASY $770.00 Call

CASY261218C00770000

Latest saved OI29Oct 23, 2026
Last change+28vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
CASY $770.00 call open interest history 4 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 29140 2026-10-15: 0 OI2026-10-16: 1 OI2026-10-21: 1 OI2026-10-23: 29 OI Oct 15, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

CASY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing29+28
Oct 21, 202610
Oct 16, 20261+1
Oct 15, 20260No prior observation