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Contract OI history

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Dec 18, 2026 EXPIRATION

USAR $9.00 Put

USAR261218P00009000

Latest saved OI1,228Oct 23, 2026
Last change+71vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
USAR $9.00 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. 1,2286140 2026-10-09: 945 OI2026-10-13: 947 OI2026-10-14: 947 OI2026-10-15: 1,003 OI2026-10-16: 1,021 OI2026-10-21: 1,157 OI2026-10-23: 1,228 OI Oct 09, 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, 2026Viewing1,228+71
Oct 21, 20261,157+136
Oct 16, 20261,021+18
Oct 15, 20261,003+56
Oct 14, 20269470
Oct 13, 2026947+2
Oct 09, 2026945No prior observation