OITracker Cboe delayed data

Contract OI history

Back to CME

Oct 30, 2026 EXPIRATION

CME $320.00 Call

CME261030C00320000

Latest saved OI42Oct 23, 2026
Last change+4vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CME $320.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 42210 2026-10-09: 0 OI2026-10-13: 0 OI2026-10-14: 1 OI2026-10-15: 1 OI2026-10-16: 3 OI2026-10-21: 38 OI2026-10-23: 42 OI Oct 09, 2026Oct 23, 2026

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

CME contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing42+4
Oct 21, 202638+35
Oct 16, 20263+2
Oct 15, 202610
Oct 14, 20261+1
Oct 13, 202600
Oct 09, 20260No prior observation