OITracker Cboe delayed data

Contract OI history

Back to CI

Oct 23, 2026 EXPIRATION

CI $297.50 Call

CI261023C00297500

Latest saved OI104Oct 23, 2026
Last change0vs previous saved observation
Saved market days8Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
CI $297.50 call open interest history 8 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 116580 2026-10-08: 0 OI2026-10-09: 0 OI2026-10-13: 75 OI2026-10-14: 75 OI2026-10-15: 116 OI2026-10-16: 115 OI2026-10-21: 104 OI2026-10-23: 104 OI Oct 08, 2026Oct 23, 2026

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

CI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1040
Oct 21, 2026104-11
Oct 16, 2026115-1
Oct 15, 2026116+41
Oct 14, 2026750
Oct 13, 202675+75
Oct 09, 202600
Oct 08, 20260No prior observation