OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

UNH $280.00 Put

UNH261218P00280000

Latest saved OI2,762Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $280.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2,9041,4520 2026-10-02: 2,903 OI2026-10-05: 2,904 OI2026-10-06: 2,877 OI2026-10-07: 2,758 OI2026-10-08: 2,758 OI2026-10-09: 2,757 OI2026-10-14: 2,749 OI2026-10-15: 2,749 OI2026-10-16: 2,739 OI2026-10-21: 2,762 OI2026-10-23: 2,762 OI Oct 02, 2026Oct 23, 2026

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

UNH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2,7620
Oct 21, 20262,762+23
Oct 16, 20262,739-10
Oct 15, 20262,7490
Oct 14, 20262,749-8
Oct 09, 20262,757-1
Oct 08, 20262,7580
Oct 07, 20262,758-119
Oct 06, 20262,877-27
Oct 05, 20262,904+1
Oct 02, 20262,903No prior observation