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Contract OI history

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Nov 20, 2026 EXPIRATION

OUST $37.00 Put

OUST261120P00037000

Latest saved OI138Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OUST $37.00 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. 159790 2026-10-09: 144 OI2026-10-13: 159 OI2026-10-14: 159 OI2026-10-15: 151 OI2026-10-16: 151 OI2026-10-21: 139 OI2026-10-23: 138 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, 2026138-1
Oct 21, 2026Viewing139-12
Oct 16, 20261510
Oct 15, 2026151-8
Oct 14, 20261590
Oct 13, 2026159+15
Oct 09, 2026144No prior observation