OITracker Cboe delayed data

Contract OI history

Back to ERO

Nov 20, 2026 EXPIRATION

ERO $25.00 Call

ERO261120C00025000

Latest saved OI231Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ERO $25.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2311150 2026-10-02: 191 OI2026-10-05: 191 OI2026-10-06: 191 OI2026-10-07: 191 OI2026-10-08: 191 OI2026-10-09: 191 OI2026-10-13: 191 OI2026-10-14: 191 OI2026-10-16: 231 OI2026-10-20: 231 OI2026-10-23: 231 OI Oct 02, 2026Oct 23, 2026

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

ERO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2310
Oct 20, 20262310
Oct 16, 2026231+40
Oct 14, 20261910
Oct 13, 20261910
Oct 09, 20261910
Oct 08, 20261910
Oct 07, 20261910
Oct 06, 20261910
Oct 05, 20261910
Oct 02, 2026191No prior observation