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Contract OI history

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Nov 20, 2026 EXPIRATION

OUST $41.00 Put

OUST261120P00041000

Latest saved OI60Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OUST $41.00 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. 61300 2026-10-09: 60 OI2026-10-13: 61 OI2026-10-14: 61 OI2026-10-15: 61 OI2026-10-16: 61 OI2026-10-21: 60 OI2026-10-23: 60 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, 2026Viewing600
Oct 21, 202660-1
Oct 16, 2026610
Oct 15, 2026610
Oct 14, 2026610
Oct 13, 202661+1
Oct 09, 202660No prior observation