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Contract OI history

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Dec 18, 2026 EXPIRATION

UNH $310.00 Put

UNH261218P00310000

Latest saved OI1,158Oct 23, 2026
Last change-23vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $310.00 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. 1,1905950 2026-10-02: 1,159 OI2026-10-05: 1,160 OI2026-10-06: 1,167 OI2026-10-07: 1,177 OI2026-10-08: 1,177 OI2026-10-09: 1,185 OI2026-10-14: 1,190 OI2026-10-15: 1,134 OI2026-10-16: 1,132 OI2026-10-21: 1,181 OI2026-10-23: 1,158 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, 2026Viewing1,158-23
Oct 21, 20261,181+49
Oct 16, 20261,132-2
Oct 15, 20261,134-56
Oct 14, 20261,190+5
Oct 09, 20261,185+8
Oct 08, 20261,1770
Oct 07, 20261,177+10
Oct 06, 20261,167+7
Oct 05, 20261,160+1
Oct 02, 20261,159No prior observation