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Contract OI history

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Jan 15, 2027 EXPIRATION

OUST $27.00 Call

OUST270115C00027000

Latest saved OI598Oct 23, 2026
Last change+3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OUST $27.00 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. 5982990 2026-10-09: 588 OI2026-10-13: 588 OI2026-10-14: 588 OI2026-10-15: 588 OI2026-10-16: 593 OI2026-10-21: 595 OI2026-10-23: 598 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, 2026598+3
Oct 21, 2026Viewing595+2
Oct 16, 2026593+5
Oct 15, 20265880
Oct 14, 20265880
Oct 13, 20265880
Oct 09, 2026588No prior observation