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Contract OI history

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Oct 30, 2026 EXPIRATION

USAR $16.50 Put

USAR261030P00016500

Latest saved OI0Oct 23, 2026
Last change-218vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
USAR $16.50 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. 3961980 2026-10-09: 396 OI2026-10-13: 327 OI2026-10-14: 327 OI2026-10-15: 233 OI2026-10-16: 230 OI2026-10-21: 218 OI2026-10-23: 0 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, 2026Viewing0-218
Oct 21, 2026218-12
Oct 16, 2026230-3
Oct 15, 2026233-94
Oct 14, 20263270
Oct 13, 2026327-69
Oct 09, 2026396No prior observation