OITracker Cboe delayed data

Contract OI history

Back to CME

Mar 19, 2027 EXPIRATION

CME $320.00 Call

CME270319C00320000

Latest saved OI152Oct 23, 2026
Last change+2vs 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. 152760 2026-10-09: 149 OI2026-10-13: 139 OI2026-10-14: 139 OI2026-10-15: 139 OI2026-10-16: 139 OI2026-10-21: 150 OI2026-10-23: 152 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, 2026Viewing152+2
Oct 21, 2026150+11
Oct 16, 20261390
Oct 15, 20261390
Oct 14, 20261390
Oct 13, 2026139-10
Oct 09, 2026149No prior observation