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Contract OI history

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Dec 18, 2026 EXPIRATION

USAR $11.00 Put

USAR261218P00011000

Latest saved OI3,145Oct 23, 2026
Last change+35vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
USAR $11.00 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. 3,1451,5720 2026-10-09: 2,493 OI2026-10-13: 2,661 OI2026-10-14: 2,661 OI2026-10-15: 2,928 OI2026-10-16: 3,000 OI2026-10-21: 3,110 OI2026-10-23: 3,145 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, 2026Viewing3,145+35
Oct 21, 20263,110+110
Oct 16, 20263,000+72
Oct 15, 20262,928+267
Oct 14, 20262,6610
Oct 13, 20262,661+168
Oct 09, 20262,493No prior observation