OITracker Cboe delayed data

Contract OI history

Back to OUST

Nov 20, 2026 EXPIRATION

OUST $24.00 Put

OUST261120P00024000

Latest saved OI388Oct 23, 2026
Last change+30vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OUST $24.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3881940 2026-10-09: 281 OI2026-10-13: 281 OI2026-10-14: 281 OI2026-10-15: 290 OI2026-10-16: 294 OI2026-10-21: 358 OI2026-10-23: 388 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, 2026388+30
Oct 21, 2026Viewing358+64
Oct 16, 2026294+4
Oct 15, 2026290+9
Oct 14, 20262810
Oct 13, 20262810
Oct 09, 2026281No prior observation