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Contract OI history

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Dec 18, 2026 EXPIRATION

USAR $23.00 Put

USAR261218P00023000

Latest saved OI76Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
USAR $23.00 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. 2751370 2026-10-09: 275 OI2026-10-13: 275 OI2026-10-14: 275 OI2026-10-15: 76 OI2026-10-16: 76 OI2026-10-21: 76 OI2026-10-23: 76 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, 2026Viewing760
Oct 21, 2026760
Oct 16, 2026760
Oct 15, 202676-199
Oct 14, 20262750
Oct 13, 20262750
Oct 09, 2026275No prior observation