OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

ERO $50.00 Call

ERO280121C00050000

Latest saved OI1,314Oct 23, 2026
Last change+6vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ERO $50.00 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. 1,3146570 2026-10-02: 1,310 OI2026-10-05: 1,310 OI2026-10-06: 1,310 OI2026-10-07: 1,310 OI2026-10-08: 1,310 OI2026-10-09: 1,310 OI2026-10-13: 1,310 OI2026-10-14: 1,310 OI2026-10-16: 1,310 OI2026-10-20: 1,308 OI2026-10-23: 1,314 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, 2026Viewing1,314+6
Oct 20, 20261,308-2
Oct 16, 20261,3100
Oct 14, 20261,3100
Oct 13, 20261,3100
Oct 09, 20261,3100
Oct 08, 20261,3100
Oct 07, 20261,3100
Oct 06, 20261,3100
Oct 05, 20261,3100
Oct 02, 20261,310No prior observation