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Contract OI history

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Nov 20, 2026 EXPIRATION

OUST $40.00 Call

OUST261120C00040000

Latest saved OI1,546Oct 23, 2026
Last change+19vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OUST $40.00 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. 1,5467730 2026-10-09: 778 OI2026-10-13: 1,386 OI2026-10-14: 1,386 OI2026-10-15: 1,441 OI2026-10-16: 1,467 OI2026-10-21: 1,527 OI2026-10-23: 1,546 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, 20261,546+19
Oct 21, 2026Viewing1,527+60
Oct 16, 20261,467+26
Oct 15, 20261,441+55
Oct 14, 20261,3860
Oct 13, 20261,386+608
Oct 09, 2026778No prior observation