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Contract OI history

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Nov 20, 2026 EXPIRATION

OUST $30.00 Put

OUST261120P00030000

Latest saved OI2,209Oct 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 $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. 2,3621,1810 2026-10-09: 2,157 OI2026-10-13: 2,216 OI2026-10-14: 2,216 OI2026-10-15: 2,362 OI2026-10-16: 2,240 OI2026-10-21: 2,212 OI2026-10-23: 2,209 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, 20262,209-3
Oct 21, 2026Viewing2,212-28
Oct 16, 20262,240-122
Oct 15, 20262,362+146
Oct 14, 20262,2160
Oct 13, 20262,216+59
Oct 09, 20262,157No prior observation