OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

U $35.00 Put

U261218P00035000

Latest saved OI22Oct 23, 2026
Last change+1vs previous saved observation
Saved market days3Oct 16, 2026 onwards
Daily open interest Hover a point for its date and OI
U $35.00 put open interest history 3 saved observations from 2026-10-16 to 2026-10-23. Exact values and changes are listed in the table below. 22110 2026-10-16: 0 OI2026-10-21: 21 OI2026-10-23: 22 OI Oct 16, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

U contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing22+1
Oct 21, 202621+21
Oct 16, 20260No prior observation