OITracker Cboe delayed data

Contract OI history

Back to OUST

Jan 19, 2029 EXPIRATION

OUST $25.00 Call

OUST290119C00025000

Latest saved OI140Oct 23, 2026
Last change+52vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OUST $25.00 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. 140700 2026-10-09: 79 OI2026-10-13: 79 OI2026-10-14: 79 OI2026-10-15: 80 OI2026-10-16: 80 OI2026-10-21: 88 OI2026-10-23: 140 OI Oct 09, 2026Oct 23, 2026

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

OUST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026140+52
Oct 21, 2026Viewing88+8
Oct 16, 2026800
Oct 15, 202680+1
Oct 14, 2026790
Oct 13, 2026790
Oct 09, 202679No prior observation