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Contract OI history

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Nov 20, 2026 EXPIRATION

OUST $55.00 Call

OUST261120C00055000

Latest saved OI889Oct 23, 2026
Last change-2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OUST $55.00 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. 1,1175580 2026-10-09: 1,117 OI2026-10-13: 1,085 OI2026-10-14: 1,085 OI2026-10-15: 1,072 OI2026-10-16: 918 OI2026-10-21: 891 OI2026-10-23: 889 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, 2026889-2
Oct 21, 2026Viewing891-27
Oct 16, 2026918-154
Oct 15, 20261,072-13
Oct 14, 20261,0850
Oct 13, 20261,085-32
Oct 09, 20261,117No prior observation