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Contract OI history

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Oct 23, 2026 EXPIRATION

OUST $30.00 Put

OUST261023P00030000

Latest saved OI184Oct 23, 2026
Last change+20vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OUST $30.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 184920 2026-10-09: 104 OI2026-10-13: 106 OI2026-10-14: 106 OI2026-10-15: 112 OI2026-10-16: 133 OI2026-10-21: 164 OI2026-10-23: 184 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, 2026Viewing184+20
Oct 21, 2026164+31
Oct 16, 2026133+21
Oct 15, 2026112+6
Oct 14, 20261060
Oct 13, 2026106+2
Oct 09, 2026104No prior observation