OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

CME $312.50 Call

CME261030C00312500

Latest saved OI71Oct 23, 2026
Last change+65vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
CME $312.50 call open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 71350 2026-10-21: 6 OI2026-10-23: 71 OI Oct 21, 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, 2026Viewing71+65
Oct 21, 20266No prior observation