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Contract OI history

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Nov 27, 2026 EXPIRATION

UNH $400.00 Put

UNH261127P00400000

Latest saved OI66Oct 23, 2026
Last change+17vs previous saved observation
Saved market days8Oct 07, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $400.00 put open interest history 8 saved observations from 2026-10-07 to 2026-10-23. Exact values and changes are listed in the table below. 66330 2026-10-07: 0 OI2026-10-08: 0 OI2026-10-09: 0 OI2026-10-14: 1 OI2026-10-15: 1 OI2026-10-16: 4 OI2026-10-21: 49 OI2026-10-23: 66 OI Oct 07, 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, 2026Viewing66+17
Oct 21, 202649+45
Oct 16, 20264+3
Oct 15, 202610
Oct 14, 20261+1
Oct 09, 202600
Oct 08, 202600
Oct 07, 20260No prior observation