OITracker Cboe delayed data

Contract OI history

Back to CME

Jan 15, 2027 EXPIRATION

CME $320.00 Call

CME270115C00320000

Latest saved OI437Oct 23, 2026
Last change+38vs 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. 4372180 2026-10-09: 351 OI2026-10-13: 352 OI2026-10-14: 352 OI2026-10-15: 352 OI2026-10-16: 352 OI2026-10-21: 399 OI2026-10-23: 437 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, 2026Viewing437+38
Oct 21, 2026399+47
Oct 16, 20263520
Oct 15, 20263520
Oct 14, 20263520
Oct 13, 2026352+1
Oct 09, 2026351No prior observation