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Contract OI history

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Oct 30, 2026 EXPIRATION

USAR $9.50 Put

USAR261030P00009500

Latest saved OI182Oct 23, 2026
Last change+160vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
USAR $9.50 put open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 182910 2026-10-21: 22 OI2026-10-23: 182 OI Oct 21, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

USAR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing182+160
Oct 21, 202622No prior observation