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Contract OI history

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Jan 21, 2028 EXPIRATION

UNH $390.00 Put

UNH280121P00390000

Latest saved OI1,077Oct 23, 2026
Last change+5vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $390.00 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. 1,0775380 2026-10-02: 81 OI2026-10-05: 81 OI2026-10-06: 81 OI2026-10-07: 137 OI2026-10-08: 137 OI2026-10-09: 137 OI2026-10-14: 631 OI2026-10-15: 628 OI2026-10-16: 1,067 OI2026-10-21: 1,072 OI2026-10-23: 1,077 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, 2026Viewing1,077+5
Oct 21, 20261,072+5
Oct 16, 20261,067+439
Oct 15, 2026628-3
Oct 14, 2026631+494
Oct 09, 20261370
Oct 08, 20261370
Oct 07, 2026137+56
Oct 06, 2026810
Oct 05, 2026810
Oct 02, 202681No prior observation