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Contract OI history

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Oct 23, 2026 EXPIRATION

USAR $13.50 Put

USAR261023P00013500

Latest saved OI18Oct 23, 2026
Last change-163vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
USAR $13.50 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. 7513750 2026-10-09: 749 OI2026-10-13: 751 OI2026-10-14: 751 OI2026-10-15: 741 OI2026-10-16: 704 OI2026-10-21: 181 OI2026-10-23: 18 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, 2026Viewing18-163
Oct 21, 2026181-523
Oct 16, 2026704-37
Oct 15, 2026741-10
Oct 14, 20267510
Oct 13, 2026751+2
Oct 09, 2026749No prior observation