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Contract OI history

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May 21, 2027 EXPIRATION

OUST $32.00 Call

OUST270521C00032000

Latest saved OI18Oct 23, 2026
Last change+11vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OUST $32.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1890 2026-10-09: 2 OI2026-10-13: 2 OI2026-10-14: 2 OI2026-10-15: 7 OI2026-10-16: 7 OI2026-10-21: 7 OI2026-10-23: 18 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, 202618+11
Oct 21, 2026Viewing70
Oct 16, 202670
Oct 15, 20267+5
Oct 14, 202620
Oct 13, 202620
Oct 09, 20262No prior observation