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Contract OI history

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Nov 20, 2026 EXPIRATION

OUST $25.00 Put

OUST261120P00025000

Latest saved OI1,802Oct 23, 2026
Last change+728vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OUST $25.00 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. 1,8029010 2026-10-09: 769 OI2026-10-13: 1,010 OI2026-10-14: 1,010 OI2026-10-15: 1,100 OI2026-10-16: 1,121 OI2026-10-21: 1,074 OI2026-10-23: 1,802 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, 2026Viewing1,802+728
Oct 21, 20261,074-47
Oct 16, 20261,121+21
Oct 15, 20261,100+90
Oct 14, 20261,0100
Oct 13, 20261,010+241
Oct 09, 2026769No prior observation