OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

USAR $40.00 Put

USAR280121P00040000

Latest saved OI188Oct 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 $40.00 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. 4712350 2026-10-09: 471 OI2026-10-13: 471 OI2026-10-14: 471 OI2026-10-15: 188 OI2026-10-16: 188 OI2026-10-21: 188 OI2026-10-23: 188 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, 2026Viewing1880
Oct 21, 20261880
Oct 16, 20261880
Oct 15, 2026188-283
Oct 14, 20264710
Oct 13, 20264710
Oct 09, 2026471No prior observation