OITracker Cboe delayed data

Contract OI history

Back to ERO

Nov 20, 2026 EXPIRATION

ERO $35.00 Call

ERO261120C00035000

Latest saved OI8,969Oct 23, 2026
Last change+184vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ERO $35.00 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. 8,9694,4840 2026-10-02: 8,360 OI2026-10-05: 8,363 OI2026-10-06: 8,351 OI2026-10-07: 8,345 OI2026-10-08: 8,335 OI2026-10-09: 8,344 OI2026-10-13: 8,354 OI2026-10-14: 8,415 OI2026-10-16: 8,422 OI2026-10-20: 8,785 OI2026-10-23: 8,969 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, 2026Viewing8,969+184
Oct 20, 20268,785+363
Oct 16, 20268,422+7
Oct 14, 20268,415+61
Oct 13, 20268,354+10
Oct 09, 20268,344+9
Oct 08, 20268,335-10
Oct 07, 20268,345-6
Oct 06, 20268,351-12
Oct 05, 20268,363+3
Oct 02, 20268,360No prior observation