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Contract OI history

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Nov 20, 2026 EXPIRATION

UNH $420.00 Put

UNH261120P00420000

Latest saved OI1,844Oct 23, 2026
Last change+976vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $420.00 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. 1,8449220 2026-10-02: 764 OI2026-10-05: 769 OI2026-10-06: 792 OI2026-10-07: 790 OI2026-10-08: 790 OI2026-10-09: 812 OI2026-10-14: 807 OI2026-10-15: 810 OI2026-10-16: 818 OI2026-10-21: 868 OI2026-10-23: 1,844 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, 2026Viewing1,844+976
Oct 21, 2026868+50
Oct 16, 2026818+8
Oct 15, 2026810+3
Oct 14, 2026807-5
Oct 09, 2026812+22
Oct 08, 20267900
Oct 07, 2026790-2
Oct 06, 2026792+23
Oct 05, 2026769+5
Oct 02, 2026764No prior observation