OITracker Cboe delayed data

Contract OI history

Back to OUST

Jan 21, 2028 EXPIRATION

OUST $40.00 Call

OUST280121C00040000

Latest saved OI1,297Oct 23, 2026
Last change+5vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OUST $40.00 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. 1,2976480 2026-10-09: 1,216 OI2026-10-13: 1,229 OI2026-10-14: 1,229 OI2026-10-15: 1,227 OI2026-10-16: 1,248 OI2026-10-21: 1,292 OI2026-10-23: 1,297 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, 2026Viewing1,297+5
Oct 21, 20261,292+44
Oct 16, 20261,248+21
Oct 15, 20261,227-2
Oct 14, 20261,2290
Oct 13, 20261,229+13
Oct 09, 20261,216No prior observation