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Contract OI history

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Jan 15, 2027 EXPIRATION

OUST $40.00 Call

OUST270115C00040000

Latest saved OI1,765Oct 23, 2026
Last change+64vs 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. 1,7658820 2026-10-09: 1,528 OI2026-10-13: 1,571 OI2026-10-14: 1,571 OI2026-10-15: 1,619 OI2026-10-16: 1,646 OI2026-10-21: 1,701 OI2026-10-23: 1,765 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, 20261,765+64
Oct 21, 2026Viewing1,701+55
Oct 16, 20261,646+27
Oct 15, 20261,619+48
Oct 14, 20261,5710
Oct 13, 20261,571+43
Oct 09, 20261,528No prior observation