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Contract OI history

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Oct 30, 2026 EXPIRATION

OUST $35.00 Put

OUST261030P00035000

Latest saved OI110Oct 23, 2026
Last change-10vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OUST $35.00 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. 144720 2026-10-09: 123 OI2026-10-13: 144 OI2026-10-14: 144 OI2026-10-15: 128 OI2026-10-16: 122 OI2026-10-21: 120 OI2026-10-23: 110 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, 2026110-10
Oct 21, 2026Viewing120-2
Oct 16, 2026122-6
Oct 15, 2026128-16
Oct 14, 20261440
Oct 13, 2026144+21
Oct 09, 2026123No prior observation